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linux-sg2042
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x86: rename the struct pt_regs members for 32/64-bit consistency 

We have a lot of code which differs only by the naming of specific
members of structures that contain registers.  In order to enable
additional unifications, this patch drops the e- or r- size prefix
from the register names in struct pt_regs, and drops the x- prefixes
for segment registers on the 32-bit side.

This patch also performs the equivalent renames in some additional
places that might be candidates for unification in the future.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
H. Peter Anvin 2008-01-30 13:30:56 +01:00 committed by Ingo Molnar
parent 53756d3722
commit 65ea5b0349
54 changed files with 953 additions and 902 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
arch/x86/ia32/ia32_aout.c
View File

@ -53,7 +53,7 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
/* changed the size calculations - should hopefully work better. lbt */
dump->magic = CMAGIC;
dump->start_code = 0;
dump->start_stack = regs->rsp & ~(PAGE_SIZE - 1);
dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
dump->u_dsize = ((unsigned long)
(current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
@ -75,22 +75,22 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
dump->u_ssize = tmp >> PAGE_SHIFT;
}
dump->regs.ebx = regs->rbx;
dump->regs.ecx = regs->rcx;
dump->regs.edx = regs->rdx;
dump->regs.esi = regs->rsi;
dump->regs.edi = regs->rdi;
dump->regs.ebp = regs->rbp;
dump->regs.eax = regs->rax;
dump->regs.bx = regs->bx;
dump->regs.cx = regs->cx;
dump->regs.dx = regs->dx;
dump->regs.si = regs->si;
dump->regs.di = regs->di;
dump->regs.bp = regs->bp;
dump->regs.ax = regs->ax;
dump->regs.ds = current->thread.ds;
dump->regs.es = current->thread.es;
asm("movl %%fs,%0" : "=r" (fs)); dump->regs.fs = fs;
asm("movl %%gs,%0" : "=r" (gs)); dump->regs.gs = gs;
dump->regs.orig_eax = regs->orig_rax;
dump->regs.eip = regs->rip;
dump->regs.orig_ax = regs->orig_ax;
dump->regs.ip = regs->ip;
dump->regs.cs = regs->cs;
dump->regs.eflags = regs->eflags;
dump->regs.esp = regs->rsp;
dump->regs.flags = regs->flags;
dump->regs.sp = regs->sp;
dump->regs.ss = regs->ss;
#if 1 /* FIXME */
@ -432,9 +432,9 @@ beyond_if:
asm volatile("movl %0,%%fs" :: "r" (0)); \
asm volatile("movl %0,%%es; movl %0,%%ds": :"r" (__USER32_DS));
load_gs_index(0);
(regs)->rip = ex.a_entry;
(regs)->rsp = current->mm->start_stack;
(regs)->eflags = 0x200;
(regs)->ip = ex.a_entry;
(regs)->sp = current->mm->start_stack;
(regs)->flags = 0x200;
(regs)->cs = __USER32_CS;
(regs)->ss = __USER32_DS;
regs->r8 = regs->r9 = regs->r10 = regs->r11 =

42
arch/x86/ia32/ia32_binfmt.c
View File

@ -73,22 +73,22 @@ struct file;
/* Assumes current==process to be dumped */
#undef ELF_CORE_COPY_REGS
#define ELF_CORE_COPY_REGS(pr_reg, regs) \
pr_reg[0] = regs->rbx; \
pr_reg[1] = regs->rcx; \
pr_reg[2] = regs->rdx; \
pr_reg[3] = regs->rsi; \
pr_reg[4] = regs->rdi; \
pr_reg[5] = regs->rbp; \
pr_reg[6] = regs->rax; \
pr_reg[0] = regs->bx; \
pr_reg[1] = regs->cx; \
pr_reg[2] = regs->dx; \
pr_reg[3] = regs->si; \
pr_reg[4] = regs->di; \
pr_reg[5] = regs->bp; \
pr_reg[6] = regs->ax; \
pr_reg[7] = _GET_SEG(ds); \
pr_reg[8] = _GET_SEG(es); \
pr_reg[9] = _GET_SEG(fs); \
pr_reg[10] = _GET_SEG(gs); \
pr_reg[11] = regs->orig_rax; \
pr_reg[12] = regs->rip; \
pr_reg[11] = regs->orig_ax; \
pr_reg[12] = regs->ip; \
pr_reg[13] = regs->cs; \
pr_reg[14] = regs->eflags; \
pr_reg[15] = regs->rsp; \
pr_reg[14] = regs->flags; \
pr_reg[15] = regs->sp; \
pr_reg[16] = regs->ss;
@ -205,9 +205,9 @@ do { \
asm volatile("movl %0,%%fs" :: "r" (0)); \
asm volatile("movl %0,%%es; movl %0,%%ds": :"r" (__USER32_DS)); \
load_gs_index(0); \
(regs)->rip = (new_rip); \
(regs)->rsp = (new_rsp); \
(regs)->eflags = 0x200; \
(regs)->ip = (new_rip); \
(regs)->sp = (new_rsp); \
(regs)->flags = X86_EFLAGS_IF; \
(regs)->cs = __USER32_CS; \
(regs)->ss = __USER32_DS; \
set_fs(USER_DS); \
@ -233,13 +233,13 @@ extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
static void elf32_init(struct pt_regs *regs)
{
struct task_struct *me = current;
regs->rdi = 0;
regs->rsi = 0;
regs->rdx = 0;
regs->rcx = 0;
regs->rax = 0;
regs->rbx = 0;
regs->rbp = 0;
regs->di = 0;
regs->si = 0;
regs->dx = 0;
regs->cx = 0;
regs->ax = 0;
regs->bx = 0;
regs->bp = 0;
regs->r8 = regs->r9 = regs->r10 = regs->r11 = regs->r12 =
regs->r13 = regs->r14 = regs->r15 = 0;
me->thread.fs = 0;

100
arch/x86/ia32/ia32_signal.c
View File

@ -154,7 +154,7 @@ asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
}
seg = get_fs();
set_fs(KERNEL_DS);
ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->rsp);
ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->sp);
set_fs(seg);
if (ret >= 0 && uoss_ptr) {
if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(stack_ia32_t)) ||
@ -195,7 +195,7 @@ struct rt_sigframe
#define COPY(x) { \
unsigned int reg; \
err |= __get_user(reg, &sc->e ##x); \
regs->r ## x = reg; \
regs->x = reg; \
}
#define RELOAD_SEG(seg,mask) \
@ -220,7 +220,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
#if DEBUG_SIG
printk(KERN_DEBUG "SIG restore_sigcontext: "
"sc=%p err(%x) eip(%x) cs(%x) flg(%x)\n",
sc, sc->err, sc->eip, sc->cs, sc->eflags);
sc, sc->err, sc->ip, sc->cs, sc->flags);
#endif
/*
@ -249,9 +249,9 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
regs->ss |= 3;
err |= __get_user(tmpflags, &sc->eflags);
regs->eflags = (regs->eflags & ~0x40DD5) | (tmpflags & 0x40DD5);
regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
/* disable syscall checks */
regs->orig_rax = -1;
regs->orig_ax = -1;
err |= __get_user(tmp, &sc->fpstate);
buf = compat_ptr(tmp);
@ -279,9 +279,9 @@ badframe:
asmlinkage long sys32_sigreturn(struct pt_regs *regs)
{
struct sigframe __user *frame = (struct sigframe __user *)(regs->rsp-8);
struct sigframe __user *frame = (struct sigframe __user *)(regs->sp-8);
sigset_t set;
unsigned int eax;
unsigned int ax;
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
@ -298,9 +298,9 @@ asmlinkage long sys32_sigreturn(struct pt_regs *regs)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
if (ia32_restore_sigcontext(regs, &frame->sc, &eax))
if (ia32_restore_sigcontext(regs, &frame->sc, &ax))
goto badframe;
return eax;
return ax;
badframe:
signal_fault(regs, frame, "32bit sigreturn");
@ -311,10 +311,10 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
{
struct rt_sigframe __user *frame;
sigset_t set;
unsigned int eax;
unsigned int ax;
struct pt_regs tregs;
frame = (struct rt_sigframe __user *)(regs->rsp - 4);
frame = (struct rt_sigframe __user *)(regs->sp - 4);
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
@ -327,14 +327,14 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &eax))
if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
goto badframe;
tregs = *regs;
if (sys32_sigaltstack(&frame->uc.uc_stack, NULL, &tregs) == -EFAULT)
goto badframe;
return eax;
return ax;
badframe:
signal_fault(regs, frame, "32bit rt sigreturn");
@ -361,21 +361,21 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
__asm__("movl %%es,%0" : "=r"(tmp): "0"(tmp));
err |= __put_user(tmp, (unsigned int __user *)&sc->es);
err |= __put_user((u32)regs->rdi, &sc->edi);
err |= __put_user((u32)regs->rsi, &sc->esi);
err |= __put_user((u32)regs->rbp, &sc->ebp);
err |= __put_user((u32)regs->rsp, &sc->esp);
err |= __put_user((u32)regs->rbx, &sc->ebx);
err |= __put_user((u32)regs->rdx, &sc->edx);
err |= __put_user((u32)regs->rcx, &sc->ecx);
err |= __put_user((u32)regs->rax, &sc->eax);
err |= __put_user((u32)regs->di, &sc->edi);
err |= __put_user((u32)regs->si, &sc->esi);
err |= __put_user((u32)regs->bp, &sc->ebp);
err |= __put_user((u32)regs->sp, &sc->esp);
err |= __put_user((u32)regs->bx, &sc->ebx);
err |= __put_user((u32)regs->dx, &sc->edx);
err |= __put_user((u32)regs->cx, &sc->ecx);
err |= __put_user((u32)regs->ax, &sc->eax);
err |= __put_user((u32)regs->cs, &sc->cs);
err |= __put_user((u32)regs->ss, &sc->ss);
err |= __put_user(current->thread.trap_no, &sc->trapno);
err |= __put_user(current->thread.error_code, &sc->err);
err |= __put_user((u32)regs->rip, &sc->eip);
err |= __put_user((u32)regs->eflags, &sc->eflags);
err |= __put_user((u32)regs->rsp, &sc->esp_at_signal);
err |= __put_user((u32)regs->ip, &sc->eip);
err |= __put_user((u32)regs->flags, &sc->eflags);
err |= __put_user((u32)regs->sp, &sc->esp_at_signal);
tmp = save_i387_ia32(current, fpstate, regs, 0);
if (tmp < 0)
@ -400,28 +400,28 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
size_t frame_size)
{
unsigned long rsp;
unsigned long sp;
/* Default to using normal stack */
rsp = regs->rsp;
sp = regs->sp;
/* This is the X/Open sanctioned signal stack switching. */
if (ka->sa.sa_flags & SA_ONSTACK) {
if (sas_ss_flags(rsp) == 0)
rsp = current->sas_ss_sp + current->sas_ss_size;
if (sas_ss_flags(sp) == 0)
sp = current->sas_ss_sp + current->sas_ss_size;
}
/* This is the legacy signal stack switching. */
else if ((regs->ss & 0xffff) != __USER_DS &&
!(ka->sa.sa_flags & SA_RESTORER) &&
ka->sa.sa_restorer)
rsp = (unsigned long) ka->sa.sa_restorer;
sp = (unsigned long) ka->sa.sa_restorer;
rsp -= frame_size;
sp -= frame_size;
/* Align the stack pointer according to the i386 ABI,
* i.e. so that on function entry ((sp + 4) & 15) == 0. */
rsp = ((rsp + 4) & -16ul) - 4;
return (void __user *) rsp;
sp = ((sp + 4) & -16ul) - 4;
return (void __user *) sp;
}
int ia32_setup_frame(int sig, struct k_sigaction *ka,
@ -486,13 +486,13 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
goto give_sigsegv;
/* Set up registers for signal handler */
regs->rsp = (unsigned long) frame;
regs->rip = (unsigned long) ka->sa.sa_handler;
regs->sp = (unsigned long) frame;
regs->ip = (unsigned long) ka->sa.sa_handler;
/* Make -mregparm=3 work */
regs->rax = sig;
regs->rdx = 0;
regs->rcx = 0;
regs->ax = sig;
regs->dx = 0;
regs->cx = 0;
asm volatile("movl %0,%%ds" :: "r" (__USER32_DS));
asm volatile("movl %0,%%es" :: "r" (__USER32_DS));
@ -501,13 +501,13 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
regs->ss = __USER32_DS;
set_fs(USER_DS);
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
#if DEBUG_SIG
printk(KERN_DEBUG "SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
current->comm, current->pid, frame, regs->rip, frame->pretcode);
current->comm, current->pid, frame, regs->ip, frame->pretcode);
#endif
return 0;
@ -556,7 +556,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= __put_user(0, &frame->uc.uc_flags);
err |= __put_user(0, &frame->uc.uc_link);
err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
err |= __put_user(sas_ss_flags(regs->rsp),
err |= __put_user(sas_ss_flags(regs->sp),
&frame->uc.uc_stack.ss_flags);
err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, &frame->fpstate,
@ -581,18 +581,18 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
goto give_sigsegv;
/* Set up registers for signal handler */
regs->rsp = (unsigned long) frame;
regs->rip = (unsigned long) ka->sa.sa_handler;
regs->sp = (unsigned long) frame;
regs->ip = (unsigned long) ka->sa.sa_handler;
/* Make -mregparm=3 work */
regs->rax = sig;
regs->rdx = (unsigned long) &frame->info;
regs->rcx = (unsigned long) &frame->uc;
regs->ax = sig;
regs->dx = (unsigned long) &frame->info;
regs->cx = (unsigned long) &frame->uc;
/* Make -mregparm=3 work */
regs->rax = sig;
regs->rdx = (unsigned long) &frame->info;
regs->rcx = (unsigned long) &frame->uc;
regs->ax = sig;
regs->dx = (unsigned long) &frame->info;
regs->cx = (unsigned long) &frame->uc;
asm volatile("movl %0,%%ds" :: "r" (__USER32_DS));
asm volatile("movl %0,%%es" :: "r" (__USER32_DS));
@ -601,13 +601,13 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->ss = __USER32_DS;
set_fs(USER_DS);
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
#if DEBUG_SIG
printk(KERN_DEBUG "SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
current->comm, current->pid, frame, regs->rip, frame->pretcode);
current->comm, current->pid, frame, regs->ip, frame->pretcode);
#endif
return 0;

44
arch/x86/ia32/ptrace32.c
View File

@ -73,19 +73,19 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
stack[offsetof(struct pt_regs, cs)/8] = val & 0xffff;
break;
R32(ebx, rbx);
R32(ecx, rcx);
R32(edx, rdx);
R32(edi, rdi);
R32(esi, rsi);
R32(ebp, rbp);
R32(eax, rax);
R32(orig_eax, orig_rax);
R32(eip, rip);
R32(esp, rsp);
R32(ebx, bx);
R32(ecx, cx);
R32(edx, dx);
R32(edi, di);
R32(esi, si);
R32(ebp, bp);
R32(eax, ax);
R32(orig_eax, orig_ax);
R32(eip, ip);
R32(esp, sp);
case offsetof(struct user32, regs.eflags): {
__u64 *flags = &stack[offsetof(struct pt_regs, eflags)/8];
__u64 *flags = &stack[offsetof(struct pt_regs, flags)/8];
val &= FLAG_MASK;
/*
@ -145,22 +145,22 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
R32(cs, cs);
R32(ss, ss);
R32(ebx, rbx);
R32(ecx, rcx);
R32(edx, rdx);
R32(edi, rdi);
R32(esi, rsi);
R32(ebp, rbp);
R32(eax, rax);
R32(orig_eax, orig_rax);
R32(eip, rip);
R32(esp, rsp);
R32(ebx, bx);
R32(ecx, cx);
R32(edx, dx);
R32(edi, di);
R32(esi, si);
R32(ebp, bp);
R32(eax, ax);
R32(orig_eax, orig_ax);
R32(eip, ip);
R32(esp, sp);
case offsetof(struct user32, regs.eflags):
/*
* If the debugger set TF, hide it from the readout.
*/
*val = stack[offsetof(struct pt_regs, eflags)/8];
*val = stack[offsetof(struct pt_regs, flags)/8];
if (test_tsk_thread_flag(child, TIF_FORCED_TF))
*val &= ~X86_EFLAGS_TF;
break;

6
arch/x86/ia32/sys_ia32.c
View File

@ -816,11 +816,11 @@ asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
asmlinkage long sys32_clone(unsigned int clone_flags, unsigned int newsp,
struct pt_regs *regs)
{
void __user *parent_tid = (void __user *)regs->rdx;
void __user *child_tid = (void __user *)regs->rdi;
void __user *parent_tid = (void __user *)regs->dx;
void __user *child_tid = (void __user *)regs->di;
if (!newsp)
newsp = regs->rsp;
newsp = regs->sp;
return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
}

32
arch/x86/kernel/acpi/wakeup_64.S
View File

@ -344,13 +344,13 @@ do_suspend_lowlevel:
call save_processor_state
movq $saved_context, %rax
movq %rsp, pt_regs_rsp(%rax)
movq %rbp, pt_regs_rbp(%rax)
movq %rsi, pt_regs_rsi(%rax)
movq %rdi, pt_regs_rdi(%rax)
movq %rbx, pt_regs_rbx(%rax)
movq %rcx, pt_regs_rcx(%rax)
movq %rdx, pt_regs_rdx(%rax)
movq %rsp, pt_regs_sp(%rax)
movq %rbp, pt_regs_bp(%rax)
movq %rsi, pt_regs_si(%rax)
movq %rdi, pt_regs_di(%rax)
movq %rbx, pt_regs_bx(%rax)
movq %rcx, pt_regs_cx(%rax)
movq %rdx, pt_regs_dx(%rax)
movq %r8, pt_regs_r8(%rax)
movq %r9, pt_regs_r9(%rax)
movq %r10, pt_regs_r10(%rax)
@ -360,7 +360,7 @@ do_suspend_lowlevel:
movq %r14, pt_regs_r14(%rax)
movq %r15, pt_regs_r15(%rax)
pushfq
popq pt_regs_eflags(%rax)
popq pt_regs_flags(%rax)
movq $.L97, saved_rip(%rip)
@ -391,15 +391,15 @@ do_suspend_lowlevel:
movq %rbx, %cr2
movq saved_context_cr0(%rax), %rbx
movq %rbx, %cr0
pushq pt_regs_eflags(%rax)
pushq pt_regs_flags(%rax)
popfq
movq pt_regs_rsp(%rax), %rsp
movq pt_regs_rbp(%rax), %rbp
movq pt_regs_rsi(%rax), %rsi
movq pt_regs_rdi(%rax), %rdi
movq pt_regs_rbx(%rax), %rbx
movq pt_regs_rcx(%rax), %rcx
movq pt_regs_rdx(%rax), %rdx
movq pt_regs_sp(%rax), %rsp
movq pt_regs_bp(%rax), %rbp
movq pt_regs_si(%rax), %rsi
movq pt_regs_di(%rax), %rdi
movq pt_regs_bx(%rax), %rbx
movq pt_regs_cx(%rax), %rcx
movq pt_regs_dx(%rax), %rdx
movq pt_regs_r8(%rax), %r8
movq pt_regs_r9(%rax), %r9
movq pt_regs_r10(%rax), %r10

32
arch/x86/kernel/asm-offsets_32.c
View File

@ -75,22 +75,22 @@ void foo(void)
OFFSET(GDS_pad, Xgt_desc_struct, pad);
BLANK();
OFFSET(PT_EBX, pt_regs, ebx);
OFFSET(PT_ECX, pt_regs, ecx);
OFFSET(PT_EDX, pt_regs, edx);
OFFSET(PT_ESI, pt_regs, esi);
OFFSET(PT_EDI, pt_regs, edi);
OFFSET(PT_EBP, pt_regs, ebp);
OFFSET(PT_EAX, pt_regs, eax);
OFFSET(PT_DS, pt_regs, xds);
OFFSET(PT_ES, pt_regs, xes);
OFFSET(PT_FS, pt_regs, xfs);
OFFSET(PT_ORIG_EAX, pt_regs, orig_eax);
OFFSET(PT_EIP, pt_regs, eip);
OFFSET(PT_CS, pt_regs, xcs);
OFFSET(PT_EFLAGS, pt_regs, eflags);
OFFSET(PT_OLDESP, pt_regs, esp);
OFFSET(PT_OLDSS, pt_regs, xss);
OFFSET(PT_EBX, pt_regs, bx);
OFFSET(PT_ECX, pt_regs, cx);
OFFSET(PT_EDX, pt_regs, dx);
OFFSET(PT_ESI, pt_regs, si);
OFFSET(PT_EDI, pt_regs, di);
OFFSET(PT_EBP, pt_regs, bp);
OFFSET(PT_EAX, pt_regs, ax);
OFFSET(PT_DS, pt_regs, ds);
OFFSET(PT_ES, pt_regs, es);
OFFSET(PT_FS, pt_regs, fs);
OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
OFFSET(PT_EIP, pt_regs, ip);
OFFSET(PT_CS, pt_regs, cs);
OFFSET(PT_EFLAGS, pt_regs, flags);
OFFSET(PT_OLDESP, pt_regs, sp);
OFFSET(PT_OLDSS, pt_regs, ss);
BLANK();
OFFSET(EXEC_DOMAIN_handler, exec_domain, handler);

18
arch/x86/kernel/asm-offsets_64.c
View File

@ -83,14 +83,14 @@ int main(void)
DEFINE(pbe_next, offsetof(struct pbe, next));
BLANK();
#define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
ENTRY(rbx);
ENTRY(rbx);
ENTRY(rcx);
ENTRY(rdx);
ENTRY(rsp);
ENTRY(rbp);
ENTRY(rsi);
ENTRY(rdi);
ENTRY(bx);
ENTRY(bx);
ENTRY(cx);
ENTRY(dx);
ENTRY(sp);
ENTRY(bp);
ENTRY(si);
ENTRY(di);
ENTRY(r8);
ENTRY(r9);
ENTRY(r10);
@ -99,7 +99,7 @@ int main(void)
ENTRY(r13);
ENTRY(r14);
ENTRY(r15);
ENTRY(eflags);
ENTRY(flags);
BLANK();
#undef ENTRY
#define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))

2
arch/x86/kernel/cpu/common.c
View File

@ -634,7 +634,7 @@ void __init early_cpu_init(void)
struct pt_regs * __devinit idle_regs(struct pt_regs *regs)
{
memset(regs, 0, sizeof(struct pt_regs));
regs->xfs = __KERNEL_PERCPU;
regs->fs = __KERNEL_PERCPU;
return regs;
}

14
arch/x86/kernel/cpu/mcheck/mce_64.c
View File

@ -110,12 +110,12 @@ static void print_mce(struct mce *m)
KERN_EMERG
"CPU %d: Machine Check Exception: %16Lx Bank %d: %016Lx\n",
m->cpu, m->mcgstatus, m->bank, m->status);
if (m->rip) {
if (m->ip) {
printk(KERN_EMERG "RIP%s %02x:<%016Lx> ",
!(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
m->cs, m->rip);
m->cs, m->ip);
if (m->cs == __KERNEL_CS)
print_symbol("{%s}", m->rip);
print_symbol("{%s}", m->ip);
printk("\n");
}
printk(KERN_EMERG "TSC %Lx ", m->tsc);
@ -156,16 +156,16 @@ static int mce_available(struct cpuinfo_x86 *c)
static inline void mce_get_rip(struct mce *m, struct pt_regs *regs)
{
if (regs && (m->mcgstatus & MCG_STATUS_RIPV)) {
m->rip = regs->rip;
m->ip = regs->ip;
m->cs = regs->cs;
} else {
m->rip = 0;
m->ip = 0;
m->cs = 0;
}
if (rip_msr) {
/* Assume the RIP in the MSR is exact. Is this true? */
m->mcgstatus |= MCG_STATUS_EIPV;
rdmsrl(rip_msr, m->rip);
rdmsrl(rip_msr, m->ip);
m->cs = 0;
}
}
@ -288,7 +288,7 @@ void do_machine_check(struct pt_regs * regs, long error_code)
* instruction which caused the MCE.
*/
if (m.mcgstatus & MCG_STATUS_EIPV)
user_space = panicm.rip && (panicm.cs & 3);
user_space = panicm.ip && (panicm.cs & 3);
/*
* If we know that the error was in user space, send a

2
arch/x86/kernel/i8259_32.c
View File

@ -339,7 +339,7 @@ static irqreturn_t math_error_irq(int cpl, void *dev_id)
outb(0,0xF0);
if (ignore_fpu_irq || !boot_cpu_data.hard_math)
return IRQ_NONE;
math_error((void __user *)get_irq_regs()->eip);
math_error((void __user *)get_irq_regs()->ip);
return IRQ_HANDLED;
}

2
arch/x86/kernel/io_apic_64.c
View File

@ -1412,7 +1412,7 @@ static void irq_complete_move(unsigned int irq)
if (likely(!cfg->move_in_progress))
return;
vector = ~get_irq_regs()->orig_rax;
vector = ~get_irq_regs()->orig_ax;
me = smp_processor_id();
if ((vector == cfg->vector) && cpu_isset(me, cfg->domain)) {
cpumask_t cleanup_mask;

8
arch/x86/kernel/ioport_32.c
View File

@ -100,7 +100,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
* beyond the 0x3ff range: to get the full 65536 ports bitmapped
* you'd need 8kB of bitmaps/process, which is a bit excessive.
*
* Here we just change the eflags value on the stack: we allow
* Here we just change the flags value on the stack: we allow
* only the super-user to do it. This depends on the stack-layout
* on system-call entry - see also fork() and the signal handling
* code.
@ -109,8 +109,8 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
asmlinkage long sys_iopl(unsigned long regsp)
{
volatile struct pt_regs *regs = (struct pt_regs *)&regsp;
unsigned int level = regs->ebx;
unsigned int old = (regs->eflags >> 12) & 3;
unsigned int level = regs->bx;
unsigned int old = (regs->flags >> 12) & 3;
struct thread_struct *t = &current->thread;
if (level > 3)
@ -122,7 +122,7 @@ asmlinkage long sys_iopl(unsigned long regsp)
}
t->iopl = level << 12;
regs->eflags = (regs->eflags & ~X86_EFLAGS_IOPL) | t->iopl;
regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | t->iopl;
set_iopl_mask(t->iopl);
return 0;

6
arch/x86/kernel/ioport_64.c
View File

@ -95,7 +95,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
* beyond the 0x3ff range: to get the full 65536 ports bitmapped
* you'd need 8kB of bitmaps/process, which is a bit excessive.
*
* Here we just change the eflags value on the stack: we allow
* Here we just change the flags value on the stack: we allow
* only the super-user to do it. This depends on the stack-layout
* on system-call entry - see also fork() and the signal handling
* code.
@ -103,7 +103,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
{
unsigned int old = (regs->eflags >> 12) & 3;
unsigned int old = (regs->flags >> 12) & 3;
if (level > 3)
return -EINVAL;
@ -112,6 +112,6 @@ asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
}
regs->eflags = (regs->eflags &~ X86_EFLAGS_IOPL) | (level << 12);
regs->flags = (regs->flags &~ X86_EFLAGS_IOPL) | (level << 12);
return 0;
}

20
arch/x86/kernel/irq_32.c
View File

@ -70,7 +70,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
{
struct pt_regs *old_regs;
/* high bit used in ret_from_ code */
int irq = ~regs->orig_eax;
int irq = ~regs->orig_ax;
struct irq_desc *desc = irq_desc + irq;
#ifdef CONFIG_4KSTACKS
union irq_ctx *curctx, *irqctx;
@ -88,13 +88,13 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
#ifdef CONFIG_DEBUG_STACKOVERFLOW
/* Debugging check for stack overflow: is there less than 1KB free? */
{
long esp;
long sp;
__asm__ __volatile__("andl %%esp,%0" :
"=r" (esp) : "0" (THREAD_SIZE - 1));
if (unlikely(esp < (sizeof(struct thread_info) + STACK_WARN))) {
"=r" (sp) : "0" (THREAD_SIZE - 1));
if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {
printk("do_IRQ: stack overflow: %ld\n",
esp - sizeof(struct thread_info));
sp - sizeof(struct thread_info));
dump_stack();
}
}
@ -112,7 +112,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
* current stack (which is the irq stack already after all)
*/
if (curctx != irqctx) {
int arg1, arg2, ebx;
int arg1, arg2, bx;
/* build the stack frame on the IRQ stack */
isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
@ -128,10 +128,10 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
(curctx->tinfo.preempt_count & SOFTIRQ_MASK);
asm volatile(
" xchgl %%ebx,%%esp \n"
" call *%%edi \n"
" movl %%ebx,%%esp \n"
: "=a" (arg1), "=d" (arg2), "=b" (ebx)
" xchgl %%ebx,%%esp \n"
" call *%%edi \n"
" movl %%ebx,%%esp \n"
: "=a" (arg1), "=d" (arg2), "=b" (bx)
: "0" (irq), "1" (desc), "2" (isp),
"D" (desc->handle_irq)
: "memory", "cc"

10
arch/x86/kernel/irq_64.c
View File

@ -53,11 +53,11 @@ static inline void stack_overflow_check(struct pt_regs *regs)
u64 curbase = (u64)task_stack_page(current);
static unsigned long warned = -60*HZ;
if (regs->rsp >= curbase && regs->rsp <= curbase + THREAD_SIZE &&
regs->rsp < curbase + sizeof(struct thread_info) + 128 &&
if (regs->sp >= curbase && regs->sp <= curbase + THREAD_SIZE &&
regs->sp < curbase + sizeof(struct thread_info) + 128 &&
time_after(jiffies, warned + 60*HZ)) {
printk("do_IRQ: %s near stack overflow (cur:%Lx,rsp:%lx)\n",
current->comm, curbase, regs->rsp);
printk("do_IRQ: %s near stack overflow (cur:%Lx,sp:%lx)\n",
current->comm, curbase, regs->sp);
show_stack(NULL,NULL);
warned = jiffies;
}
@ -162,7 +162,7 @@ asmlinkage unsigned int do_IRQ(struct pt_regs *regs)
struct pt_regs *old_regs = set_irq_regs(regs);
/* high bit used in ret_from_ code */
unsigned vector = ~regs->orig_rax;
unsigned vector = ~regs->orig_ax;
unsigned irq;
exit_idle();

92
arch/x86/kernel/kprobes_32.c
View File

@ -212,7 +212,7 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
{
__get_cpu_var(current_kprobe) = p;
kcb->kprobe_saved_eflags = kcb->kprobe_old_eflags
= (regs->eflags & (TF_MASK | IF_MASK));
= (regs->flags & (TF_MASK | IF_MASK));
if (is_IF_modifier(p->opcode))
kcb->kprobe_saved_eflags &= ~IF_MASK;
}
@ -232,20 +232,20 @@ static __always_inline void restore_btf(void)
static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
{
clear_btf();
regs->eflags |= TF_MASK;
regs->eflags &= ~IF_MASK;
regs->flags |= TF_MASK;
regs->flags &= ~IF_MASK;
/*single step inline if the instruction is an int3*/
if (p->opcode == BREAKPOINT_INSTRUCTION)
regs->eip = (unsigned long)p->addr;
regs->ip = (unsigned long)p->addr;
else
regs->eip = (unsigned long)p->ainsn.insn;
regs->ip = (unsigned long)p->ainsn.insn;
}
/* Called with kretprobe_lock held */
void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
struct pt_regs *regs)
{
unsigned long *sara = (unsigned long *)&regs->esp;
unsigned long *sara = (unsigned long *)&regs->sp;
ri->ret_addr = (kprobe_opcode_t *) *sara;
@ -264,7 +264,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
kprobe_opcode_t *addr;
struct kprobe_ctlblk *kcb;
addr = (kprobe_opcode_t *)(regs->eip - sizeof(kprobe_opcode_t));
addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
/*
* We don't want to be preempted for the entire
@ -279,8 +279,8 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
if (p) {
if (kcb->kprobe_status == KPROBE_HIT_SS &&
*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
regs->eflags &= ~TF_MASK;
regs->eflags |= kcb->kprobe_saved_eflags;
regs->flags &= ~TF_MASK;
regs->flags |= kcb->kprobe_saved_eflags;
goto no_kprobe;
}
/* We have reentered the kprobe_handler(), since
@ -301,7 +301,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
* another cpu right after we hit, no further
* handling of this interrupt is appropriate
*/
regs->eip -= sizeof(kprobe_opcode_t);
regs->ip -= sizeof(kprobe_opcode_t);
ret = 1;
goto no_kprobe;
}
@ -325,7 +325,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
* Back up over the (now missing) int3 and run
* the original instruction.
*/
regs->eip -= sizeof(kprobe_opcode_t);
regs->ip -= sizeof(kprobe_opcode_t);
ret = 1;
}
/* Not one of ours: let kernel handle it */
@ -344,7 +344,7 @@ ss_probe:
if (p->ainsn.boostable == 1 && !p->post_handler){
/* Boost up -- we can execute copied instructions directly */
reset_current_kprobe();
regs->eip = (unsigned long)p->ainsn.insn;
regs->ip = (unsigned long)p->ainsn.insn;
preempt_enable_no_resched();
return 1;
}
@ -368,7 +368,7 @@ no_kprobe:
asm volatile ( ".global kretprobe_trampoline\n"
"kretprobe_trampoline: \n"
" pushf\n"
/* skip cs, eip, orig_eax */
/* skip cs, ip, orig_ax */
" subl $12, %esp\n"
" pushl %fs\n"
" pushl %ds\n"
@ -382,10 +382,10 @@ no_kprobe:
" pushl %ebx\n"
" movl %esp, %eax\n"
" call trampoline_handler\n"
/* move eflags to cs */
/* move flags to cs */
" movl 52(%esp), %edx\n"
" movl %edx, 48(%esp)\n"
/* save true return address on eflags */
/* save true return address on flags */
" movl %eax, 52(%esp)\n"
" popl %ebx\n"
" popl %ecx\n"
@ -394,7 +394,7 @@ no_kprobe:
" popl %edi\n"
" popl %ebp\n"
" popl %eax\n"
/* skip eip, orig_eax, es, ds, fs */
/* skip ip, orig_ax, es, ds, fs */
" addl $20, %esp\n"
" popf\n"
" ret\n");
@ -415,9 +415,9 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
spin_lock_irqsave(&kretprobe_lock, flags);
head = kretprobe_inst_table_head(current);
/* fixup registers */
regs->xcs = __KERNEL_CS | get_kernel_rpl();
regs->eip = trampoline_address;
regs->orig_eax = 0xffffffff;
regs->cs = __KERNEL_CS | get_kernel_rpl();
regs->ip = trampoline_address;
regs->orig_ax = 0xffffffff;
/*
* It is possible to have multiple instances associated with a given
@ -478,11 +478,11 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
* interrupt. We have to fix up the stack as follows:
*
* 0) Except in the case of absolute or indirect jump or call instructions,
* the new eip is relative to the copied instruction. We need to make
* the new ip is relative to the copied instruction. We need to make
* it relative to the original instruction.
*
* 1) If the single-stepped instruction was pushfl, then the TF and IF
* flags are set in the just-pushed eflags, and may need to be cleared.
* flags are set in the just-pushed flags, and may need to be cleared.
*
* 2) If the single-stepped instruction was a call, the return address
* that is atop the stack is the address following the copied instruction.
@ -493,11 +493,11 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
static void __kprobes resume_execution(struct kprobe *p,
struct pt_regs *regs, struct kprobe_ctlblk *kcb)
{
unsigned long *tos = (unsigned long *)&regs->esp;
unsigned long *tos = (unsigned long *)&regs->sp;
unsigned long copy_eip = (unsigned long)p->ainsn.insn;
unsigned long orig_eip = (unsigned long)p->addr;
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
switch (p->ainsn.insn[0]) {
case 0x9c: /* pushfl */
*tos &= ~(TF_MASK | IF_MASK);
@ -508,8 +508,8 @@ static void __kprobes resume_execution(struct kprobe *p,
case 0xca:
case 0xcb:
case 0xcf:
case 0xea: /* jmp absolute -- eip is correct */
/* eip is already adjusted, no more changes required */
case 0xea: /* jmp absolute -- ip is correct */
/* ip is already adjusted, no more changes required */
p->ainsn.boostable = 1;
goto no_change;
case 0xe8: /* call relative - Fix return addr */
@ -522,14 +522,14 @@ static void __kprobes resume_execution(struct kprobe *p,
if ((p->ainsn.insn[1] & 0x30) == 0x10) {
/*
* call absolute, indirect
* Fix return addr; eip is correct.
* Fix return addr; ip is correct.
* But this is not boostable
*/
*tos = orig_eip + (*tos - copy_eip);
goto no_change;
} else if (((p->ainsn.insn[1] & 0x31) == 0x20) || /* jmp near, absolute indirect */
((p->ainsn.insn[1] & 0x31) == 0x21)) { /* jmp far, absolute indirect */
/* eip is correct. And this is boostable */
/* ip is correct. And this is boostable */
p->ainsn.boostable = 1;
goto no_change;
}
@ -538,21 +538,21 @@ static void __kprobes resume_execution(struct kprobe *p,
}
if (p->ainsn.boostable == 0) {
if ((regs->eip > copy_eip) &&
(regs->eip - copy_eip) + 5 < MAX_INSN_SIZE) {
if ((regs->ip > copy_eip) &&
(regs->ip - copy_eip) + 5 < MAX_INSN_SIZE) {
/*
* These instructions can be executed directly if it
* jumps back to correct address.
*/
set_jmp_op((void *)regs->eip,
(void *)orig_eip + (regs->eip - copy_eip));
set_jmp_op((void *)regs->ip,
(void *)orig_eip + (regs->ip - copy_eip));
p->ainsn.boostable = 1;
} else {
p->ainsn.boostable = -1;
}
}
regs->eip = orig_eip + (regs->eip - copy_eip);
regs->ip = orig_eip + (regs->ip - copy_eip);
no_change:
restore_btf();
@ -578,8 +578,8 @@ static int __kprobes post_kprobe_handler(struct pt_regs *regs)
}
resume_execution(cur, regs, kcb);
regs->eflags |= kcb->kprobe_saved_eflags;
trace_hardirqs_fixup_flags(regs->eflags);
regs->flags |= kcb->kprobe_saved_eflags;
trace_hardirqs_fixup_flags(regs->flags);
/*Restore back the original saved kprobes variables and continue. */
if (kcb->kprobe_status == KPROBE_REENTER) {
@ -591,11 +591,11 @@ out:
preempt_enable_no_resched();
/*
* if somebody else is singlestepping across a probe point, eflags
* if somebody else is singlestepping across a probe point, flags
* will have TF set, in which case, continue the remaining processing
* of do_debug, as if this is not a probe hit.
*/
if (regs->eflags & TF_MASK)
if (regs->flags & TF_MASK)
return 0;
return 1;
@ -612,12 +612,12 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
/*
* We are here because the instruction being single
* stepped caused a page fault. We reset the current
* kprobe and the eip points back to the probe address
* kprobe and the ip points back to the probe address
* and allow the page fault handler to continue as a
* normal page fault.
*/
regs->eip = (unsigned long)cur->addr;
regs->eflags |= kcb->kprobe_old_eflags;
regs->ip = (unsigned long)cur->addr;
regs->flags |= kcb->kprobe_old_eflags;
if (kcb->kprobe_status == KPROBE_REENTER)
restore_previous_kprobe(kcb);
else
@ -703,7 +703,7 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
kcb->jprobe_saved_regs = *regs;
kcb->jprobe_saved_esp = &regs->esp;
kcb->jprobe_saved_esp = &regs->sp;
addr = (unsigned long)(kcb->jprobe_saved_esp);
/*
@ -715,9 +715,9 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
*/
memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
MIN_STACK_SIZE(addr));
regs->eflags &= ~IF_MASK;
regs->flags &= ~IF_MASK;
trace_hardirqs_off();
regs->eip = (unsigned long)(jp->entry);
regs->ip = (unsigned long)(jp->entry);
return 1;
}
@ -736,15 +736,15 @@ void __kprobes jprobe_return(void)
int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
{
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
u8 *addr = (u8 *) (regs->eip - 1);
u8 *addr = (u8 *) (regs->ip - 1);
unsigned long stack_addr = (unsigned long)(kcb->jprobe_saved_esp);
struct jprobe *jp = container_of(p, struct jprobe, kp);
if ((addr > (u8 *) jprobe_return) && (addr < (u8 *) jprobe_return_end)) {
if (&regs->esp != kcb->jprobe_saved_esp) {
if (&regs->sp != kcb->jprobe_saved_esp) {
struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
printk("current esp %p does not match saved esp %p\n",
&regs->esp, kcb->jprobe_saved_esp);
printk("current sp %p does not match saved sp %p\n",
&regs->sp, kcb->jprobe_saved_esp);
printk("Saved registers for jprobe %p\n", jp);
show_registers(saved_regs);
printk("Current registers\n");

69
arch/x86/kernel/kprobes_64.c
View File

@ -251,7 +251,7 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
{
__get_cpu_var(current_kprobe) = p;
kcb->kprobe_saved_rflags = kcb->kprobe_old_rflags
= (regs->eflags & (TF_MASK | IF_MASK));
= (regs->flags & (TF_MASK | IF_MASK));
if (is_IF_modifier(p->ainsn.insn))
kcb->kprobe_saved_rflags &= ~IF_MASK;
}
@ -271,20 +271,20 @@ static __always_inline void restore_btf(void)
static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
{
clear_btf();
regs->eflags |= TF_MASK;
regs->eflags &= ~IF_MASK;
regs->flags |= TF_MASK;
regs->flags &= ~IF_MASK;
/*single step inline if the instruction is an int3*/
if (p->opcode == BREAKPOINT_INSTRUCTION)
regs->rip = (unsigned long)p->addr;
regs->ip = (unsigned long)p->addr;
else
regs->rip = (unsigned long)p->ainsn.insn;
regs->ip = (unsigned long)p->ainsn.insn;
}
/* Called with kretprobe_lock held */
void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
struct pt_regs *regs)
{
unsigned long *sara = (unsigned long *)regs->rsp;
unsigned long *sara = (unsigned long *)regs->sp;
ri->ret_addr = (kprobe_opcode_t *) *sara;
/* Replace the return addr with trampoline addr */
@ -295,7 +295,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
{
struct kprobe *p;
int ret = 0;
kprobe_opcode_t *addr = (kprobe_opcode_t *)(regs->rip - sizeof(kprobe_opcode_t));
kprobe_opcode_t *addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
struct kprobe_ctlblk *kcb;
/*
@ -311,8 +311,8 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
if (p) {
if (kcb->kprobe_status == KPROBE_HIT_SS &&
*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
regs->eflags &= ~TF_MASK;
regs->eflags |= kcb->kprobe_saved_rflags;
regs->flags &= ~TF_MASK;
regs->flags |= kcb->kprobe_saved_rflags;
goto no_kprobe;
} else if (kcb->kprobe_status == KPROBE_HIT_SSDONE) {
/* TODO: Provide re-entrancy from
@ -321,7 +321,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
* the instruction of the new probe.
*/
arch_disarm_kprobe(p);
regs->rip = (unsigned long)p->addr;
regs->ip = (unsigned long)p->addr;
reset_current_kprobe();
ret = 1;
} else {
@ -345,7 +345,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
* another cpu right after we hit, no further
* handling of this interrupt is appropriate
*/
regs->rip = (unsigned long)addr;
regs->ip = (unsigned long)addr;
ret = 1;
goto no_kprobe;
}
@ -369,7 +369,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs)
* Back up over the (now missing) int3 and run
* the original instruction.
*/
regs->rip = (unsigned long)addr;
regs->ip = (unsigned long)addr;
ret = 1;
}
/* Not one of ours: let kernel handle it */
@ -454,7 +454,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
}
kretprobe_assert(ri, orig_ret_address, trampoline_address);
regs->rip = orig_ret_address;
regs->ip = orig_ret_address;
reset_current_kprobe();
spin_unlock_irqrestore(&kretprobe_lock, flags);
@ -484,11 +484,11 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
* interrupt. We have to fix up the stack as follows:
*
* 0) Except in the case of absolute or indirect jump or call instructions,
* the new rip is relative to the copied instruction. We need to make
* the new ip is relative to the copied instruction. We need to make
* it relative to the original instruction.
*
* 1) If the single-stepped instruction was pushfl, then the TF and IF
* flags are set in the just-pushed eflags, and may need to be cleared.
* flags are set in the just-pushed flags, and may need to be cleared.
*
* 2) If the single-stepped instruction was a call, the return address
* that is atop the stack is the address following the copied instruction.
@ -497,7 +497,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
static void __kprobes resume_execution(struct kprobe *p,
struct pt_regs *regs, struct kprobe_ctlblk *kcb)
{
unsigned long *tos = (unsigned long *)regs->rsp;
unsigned long *tos = (unsigned long *)regs->sp;
unsigned long copy_rip = (unsigned long)p->ainsn.insn;
unsigned long orig_rip = (unsigned long)p->addr;
kprobe_opcode_t *insn = p->ainsn.insn;
@ -506,7 +506,7 @@ static void __kprobes resume_execution(struct kprobe *p,
if (*insn >= 0x40 && *insn <= 0x4f)
insn++;
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
switch (*insn) {
case 0x9c: /* pushfl */
*tos &= ~(TF_MASK | IF_MASK);
@ -538,7 +538,8 @@ static void __kprobes resume_execution(struct kprobe *p,
break;
}
regs->rip = orig_rip + (regs->rip - copy_rip);
regs->ip = orig_rip + (regs->ip - copy_rip);
no_change:
restore_btf();
@ -559,8 +560,8 @@ int __kprobes post_kprobe_handler(struct pt_regs *regs)
}
resume_execution(cur, regs, kcb);
regs->eflags |= kcb->kprobe_saved_rflags;
trace_hardirqs_fixup_flags(regs->eflags);
regs->flags |= kcb->kprobe_saved_rflags;
trace_hardirqs_fixup_flags(regs->flags);
/* Restore the original saved kprobes variables and continue. */
if (kcb->kprobe_status == KPROBE_REENTER) {
@ -572,11 +573,11 @@ out:
preempt_enable_no_resched();
/*
* if somebody else is singlestepping across a probe point, eflags
* if somebody else is singlestepping across a probe point, flags
* will have TF set, in which case, continue the remaining processing
* of do_debug, as if this is not a probe hit.
*/
if (regs->eflags & TF_MASK)
if (regs->flags & TF_MASK)
return 0;
return 1;
@ -594,12 +595,12 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
/*
* We are here because the instruction being single
* stepped caused a page fault. We reset the current
* kprobe and the rip points back to the probe address
* kprobe and the ip points back to the probe address
* and allow the page fault handler to continue as a
* normal page fault.
*/
regs->rip = (unsigned long)cur->addr;
regs->eflags |= kcb->kprobe_old_rflags;
regs->ip = (unsigned long)cur->addr;
regs->flags |= kcb->kprobe_old_rflags;
if (kcb->kprobe_status == KPROBE_REENTER)
restore_previous_kprobe(kcb);
else
@ -629,9 +630,9 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
* In case the user-specified fault handler returned
* zero, try to fix up.
*/
fixup = search_exception_tables(regs->rip);
fixup = search_exception_tables(regs->ip);
if (fixup) {
regs->rip = fixup->fixup;
regs->ip = fixup->fixup;
return 1;
}
@ -688,7 +689,7 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
kcb->jprobe_saved_regs = *regs;
kcb->jprobe_saved_rsp = (long *) regs->rsp;
kcb->jprobe_saved_rsp = (long *) regs->sp;
addr = (unsigned long)(kcb->jprobe_saved_rsp);
/*
* As Linus pointed out, gcc assumes that the callee
@ -699,9 +700,9 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
*/
memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
MIN_STACK_SIZE(addr));
regs->eflags &= ~IF_MASK;
regs->flags &= ~IF_MASK;
trace_hardirqs_off();
regs->rip = (unsigned long)(jp->entry);
regs->ip = (unsigned long)(jp->entry);
return 1;
}
@ -720,15 +721,15 @@ void __kprobes jprobe_return(void)
int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
{
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
u8 *addr = (u8 *) (regs->rip - 1);
u8 *addr = (u8 *) (regs->ip - 1);
unsigned long stack_addr = (unsigned long)(kcb->jprobe_saved_rsp);
struct jprobe *jp = container_of(p, struct jprobe, kp);
if ((addr > (u8 *) jprobe_return) && (addr < (u8 *) jprobe_return_end)) {
if ((unsigned long *)regs->rsp != kcb->jprobe_saved_rsp) {
if ((unsigned long *)regs->sp != kcb->jprobe_saved_rsp) {
struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
printk("current rsp %p does not match saved rsp %p\n",
(long *)regs->rsp, kcb->jprobe_saved_rsp);
printk("current sp %p does not match saved sp %p\n",
(long *)regs->sp, kcb->jprobe_saved_rsp);
printk("Saved registers for jprobe %p\n", jp);
show_registers(saved_regs);
printk("Current registers\n");

140
arch/x86/kernel/process_32.c
View File

@ -265,13 +265,13 @@ EXPORT_SYMBOL_GPL(cpu_idle_wait);
* New with Core Duo processors, MWAIT can take some hints based on CPU
* capability.
*/
void mwait_idle_with_hints(unsigned long eax, unsigned long ecx)
void mwait_idle_with_hints(unsigned long ax, unsigned long cx)
{
if (!need_resched()) {
__monitor((void *)&current_thread_info()->flags, 0, 0);
smp_mb();
if (!need_resched())
__mwait(eax, ecx);
__mwait(ax, cx);
}
}
@ -320,15 +320,15 @@ void __show_registers(struct pt_regs *regs, int all)
{
unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
unsigned long d0, d1, d2, d3, d6, d7;
unsigned long esp;
unsigned long sp;
unsigned short ss, gs;
if (user_mode_vm(regs)) {
esp = regs->esp;
ss = regs->xss & 0xffff;
sp = regs->sp;
ss = regs->ss & 0xffff;
savesegment(gs, gs);
} else {
esp = (unsigned long) (&regs->esp);
sp = (unsigned long) (&regs->sp);
savesegment(ss, ss);
savesegment(gs, gs);
}
@ -341,17 +341,17 @@ void __show_registers(struct pt_regs *regs, int all)
init_utsname()->version);
printk("EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
0xffff & regs->xcs, regs->eip, regs->eflags,
0xffff & regs->cs, regs->ip, regs->flags,
smp_processor_id());
print_symbol("EIP is at %s\n", regs->eip);
print_symbol("EIP is at %s\n", regs->ip);
printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
regs->eax, regs->ebx, regs->ecx, regs->edx);
regs->ax, regs->bx, regs->cx, regs->dx);
printk("ESI: %08lx EDI: %08lx EBP: %08lx ESP: %08lx\n",
regs->esi, regs->edi, regs->ebp, esp);
regs->si, regs->di, regs->bp, sp);
printk(" DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x\n",
regs->xds & 0xffff, regs->xes & 0xffff,
regs->xfs & 0xffff, gs, ss);
regs->ds & 0xffff, regs->es & 0xffff,
regs->fs & 0xffff, gs, ss);
if (!all)
return;
@ -379,12 +379,12 @@ void __show_registers(struct pt_regs *regs, int all)
void show_regs(struct pt_regs *regs)
{
__show_registers(regs, 1);
show_trace(NULL, regs, &regs->esp);
show_trace(NULL, regs, &regs->sp);
}
/*
* This gets run with %ebx containing the
* function to call, and %edx containing
* This gets run with %bx containing the
* function to call, and %dx containing
* the "args".
*/
extern void kernel_thread_helper(void);
@ -398,16 +398,16 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
memset(&regs, 0, sizeof(regs));
regs.ebx = (unsigned long) fn;
regs.edx = (unsigned long) arg;
regs.bx = (unsigned long) fn;
regs.dx = (unsigned long) arg;
regs.xds = __USER_DS;
regs.xes = __USER_DS;
regs.xfs = __KERNEL_PERCPU;
regs.orig_eax = -1;
regs.eip = (unsigned long) kernel_thread_helper;
regs.xcs = __KERNEL_CS | get_kernel_rpl();
regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2;
regs.ds = __USER_DS;
regs.es = __USER_DS;
regs.fs = __KERNEL_PERCPU;
regs.orig_ax = -1;
regs.ip = (unsigned long) kernel_thread_helper;
regs.cs = __KERNEL_CS | get_kernel_rpl();
regs.flags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2;
/* Ok, create the new process.. */
return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
@ -470,7 +470,7 @@ void prepare_to_copy(struct task_struct *tsk)
unlazy_fpu(tsk);
}
int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
unsigned long unused,
struct task_struct * p, struct pt_regs * regs)
{
@ -480,8 +480,8 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
childregs = task_pt_regs(p);
*childregs = *regs;
childregs->eax = 0;
childregs->esp = esp;
childregs->ax = 0;
childregs->sp = sp;
p->thread.esp = (unsigned long) childregs;
p->thread.esp0 = (unsigned long) (childregs+1);
@ -508,7 +508,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
*/
if (clone_flags & CLONE_SETTLS)
err = do_set_thread_area(p, -1,
(struct user_desc __user *)childregs->esi, 0);
(struct user_desc __user *)childregs->si, 0);
if (err && p->thread.io_bitmap_ptr) {
kfree(p->thread.io_bitmap_ptr);
@ -527,7 +527,7 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
/* changed the size calculations - should hopefully work better. lbt */
dump->magic = CMAGIC;
dump->start_code = 0;
dump->start_stack = regs->esp & ~(PAGE_SIZE - 1);
dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
dump->u_dsize -= dump->u_tsize;
@ -538,23 +538,23 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
if (dump->start_stack < TASK_SIZE)
dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
dump->regs.ebx = regs->ebx;
dump->regs.ecx = regs->ecx;
dump->regs.edx = regs->edx;
dump->regs.esi = regs->esi;
dump->regs.edi = regs->edi;
dump->regs.ebp = regs->ebp;
dump->regs.eax = regs->eax;
dump->regs.ds = regs->xds;
dump->regs.es = regs->xes;
dump->regs.fs = regs->xfs;
dump->regs.ebx = regs->bx;
dump->regs.ecx = regs->cx;
dump->regs.edx = regs->dx;
dump->regs.esi = regs->si;
dump->regs.edi = regs->di;
dump->regs.ebp = regs->bp;
dump->regs.eax = regs->ax;
dump->regs.ds = regs->ds;
dump->regs.es = regs->es;
dump->regs.fs = regs->fs;
savesegment(gs,dump->regs.gs);
dump->regs.orig_eax = regs->orig_eax;
dump->regs.eip = regs->eip;
dump->regs.cs = regs->xcs;
dump->regs.eflags = regs->eflags;
dump->regs.esp = regs->esp;
dump->regs.ss = regs->xss;
dump->regs.orig_eax = regs->orig_ax;
dump->regs.eip = regs->ip;
dump->regs.cs = regs->cs;
dump->regs.eflags = regs->flags;
dump->regs.esp = regs->sp;
dump->regs.ss = regs->ss;
dump->u_fpvalid = dump_fpu (regs, &dump->i387);
}
@ -566,10 +566,10 @@ EXPORT_SYMBOL(dump_thread);
int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
{
struct pt_regs ptregs = *task_pt_regs(tsk);
ptregs.xcs &= 0xffff;
ptregs.xds &= 0xffff;
ptregs.xes &= 0xffff;
ptregs.xss &= 0xffff;
ptregs.cs &= 0xffff;
ptregs.ds &= 0xffff;
ptregs.es &= 0xffff;
ptregs.ss &= 0xffff;
elf_core_copy_regs(regs, &ptregs);
@ -684,7 +684,7 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
* More important, however, is the fact that this allows us much
* more flexibility.
*
* The return value (in %eax) will be the "prev" task after
* The return value (in %ax) will be the "prev" task after
* the task-switch, and shows up in ret_from_fork in entry.S,
* for example.
*/
@ -771,7 +771,7 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas
asmlinkage int sys_fork(struct pt_regs regs)
{
return do_fork(SIGCHLD, regs.esp, &regs, 0, NULL, NULL);
return do_fork(SIGCHLD, regs.sp, &regs, 0, NULL, NULL);
}
asmlinkage int sys_clone(struct pt_regs regs)
@ -780,12 +780,12 @@ asmlinkage int sys_clone(struct pt_regs regs)
unsigned long newsp;
int __user *parent_tidptr, *child_tidptr;
clone_flags = regs.ebx;
newsp = regs.ecx;
parent_tidptr = (int __user *)regs.edx;
child_tidptr = (int __user *)regs.edi;
clone_flags = regs.bx;
newsp = regs.cx;
parent_tidptr = (int __user *)regs.dx;
child_tidptr = (int __user *)regs.di;
if (!newsp)
newsp = regs.esp;
newsp = regs.sp;
return do_fork(clone_flags, newsp, &regs, 0, parent_tidptr, child_tidptr);
}
@ -801,7 +801,7 @@ asmlinkage int sys_clone(struct pt_regs regs)
*/
asmlinkage int sys_vfork(struct pt_regs regs)
{
return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.esp, &regs, 0, NULL, NULL);
return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.sp, &regs, 0, NULL, NULL);
}
/*
@ -812,13 +812,13 @@ asmlinkage int sys_execve(struct pt_regs regs)
int error;
char * filename;
filename = getname((char __user *) regs.ebx);
filename = getname((char __user *) regs.bx);
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
error = do_execve(filename,
(char __user * __user *) regs.ecx,
(char __user * __user *) regs.edx,
(char __user * __user *) regs.cx,
(char __user * __user *) regs.dx,
&regs);
if (error == 0) {
/* Make sure we don't return using sysenter.. */
@ -834,24 +834,24 @@ out:
unsigned long get_wchan(struct task_struct *p)
{
unsigned long ebp, esp, eip;
unsigned long bp, sp, ip;
unsigned long stack_page;
int count = 0;
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
stack_page = (unsigned long)task_stack_page(p);
esp = p->thread.esp;
if (!stack_page || esp < stack_page || esp > top_esp+stack_page)
sp = p->thread.esp;
if (!stack_page || sp < stack_page || sp > top_esp+stack_page)
return 0;
/* include/asm-i386/system.h:switch_to() pushes ebp last. */
ebp = *(unsigned long *) esp;
/* include/asm-i386/system.h:switch_to() pushes bp last. */
bp = *(unsigned long *) sp;
do {
if (ebp < stack_page || ebp > top_ebp+stack_page)
if (bp < stack_page || bp > top_ebp+stack_page)
return 0;
eip = *(unsigned long *) (ebp+4);
if (!in_sched_functions(eip))
return eip;
ebp = *(unsigned long *) ebp;
ip = *(unsigned long *) (bp+4);
if (!in_sched_functions(ip))
return ip;
bp = *(unsigned long *) bp;
} while (count++ < 16);
return 0;
}

44
arch/x86/kernel/process_64.c
View File

@ -257,13 +257,13 @@ void cpu_idle(void)
* New with Core Duo processors, MWAIT can take some hints based on CPU
* capability.
*/
void mwait_idle_with_hints(unsigned long eax, unsigned long ecx)
void mwait_idle_with_hints(unsigned long ax, unsigned long cx)
{
if (!need_resched()) {
__monitor((void *)&current_thread_info()->flags, 0, 0);
smp_mb();
if (!need_resched())
__mwait(eax, ecx);
__mwait(ax, cx);
}
}
@ -330,16 +330,16 @@ void __show_regs(struct pt_regs * regs)
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->rip);
printk_address(regs->rip);
printk("RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss, regs->rsp,
regs->eflags);
printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
printk_address(regs->ip);
printk("RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss, regs->sp,
regs->flags);
printk("RAX: %016lx RBX: %016lx RCX: %016lx\n",
regs->rax, regs->rbx, regs->rcx);
regs->ax, regs->bx, regs->cx);
printk("RDX: %016lx RSI: %016lx RDI: %016lx\n",
regs->rdx, regs->rsi, regs->rdi);
regs->dx, regs->si, regs->di);
printk("RBP: %016lx R08: %016lx R09: %016lx\n",
regs->rbp, regs->r8, regs->r9);
regs->bp, regs->r8, regs->r9);
printk("R10: %016lx R11: %016lx R12: %016lx\n",
regs->r10, regs->r11, regs->r12);
printk("R13: %016lx R14: %016lx R15: %016lx\n",
@ -476,7 +476,7 @@ void prepare_to_copy(struct task_struct *tsk)
unlazy_fpu(tsk);
}
int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
unsigned long unused,
struct task_struct * p, struct pt_regs * regs)
{
@ -488,10 +488,10 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
(THREAD_SIZE + task_stack_page(p))) - 1;
*childregs = *regs;
childregs->rax = 0;
childregs->rsp = rsp;
if (rsp == ~0UL)
childregs->rsp = (unsigned long)childregs;
childregs->ax = 0;
childregs->sp = sp;
if (sp == ~0UL)
childregs->sp = (unsigned long)childregs;
p->thread.rsp = (unsigned long) childregs;
p->thread.rsp0 = (unsigned long) (childregs+1);
@ -525,7 +525,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
#ifdef CONFIG_IA32_EMULATION
if (test_thread_flag(TIF_IA32))
err = do_set_thread_area(p, -1,
(struct user_desc __user *)childregs->rsi, 0);
(struct user_desc __user *)childregs->si, 0);
else
#endif
err = do_arch_prctl(p, ARCH_SET_FS, childregs->r8);
@ -732,7 +732,7 @@ void set_personality_64bit(void)
asmlinkage long sys_fork(struct pt_regs *regs)
{
return do_fork(SIGCHLD, regs->rsp, regs, 0, NULL, NULL);
return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL);
}
asmlinkage long
@ -740,7 +740,7 @@ sys_clone(unsigned long clone_flags, unsigned long newsp,
void __user *parent_tid, void __user *child_tid, struct pt_regs *regs)
{
if (!newsp)
newsp = regs->rsp;
newsp = regs->sp;
return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
}
@ -756,14 +756,14 @@ sys_clone(unsigned long clone_flags, unsigned long newsp,
*/
asmlinkage long sys_vfork(struct pt_regs *regs)
{
return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->rsp, regs, 0,
return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp, regs, 0,
NULL, NULL);
}
unsigned long get_wchan(struct task_struct *p)
{
unsigned long stack;
u64 fp,rip;
u64 fp,ip;
int count = 0;
if (!p || p == current || p->state==TASK_RUNNING)
@ -776,9 +776,9 @@ unsigned long get_wchan(struct task_struct *p)
if (fp < (unsigned long)stack ||
fp > (unsigned long)stack+THREAD_SIZE)
return 0;
rip = *(u64 *)(fp+8);
if (!in_sched_functions(rip))
return rip;
ip = *(u64 *)(fp+8);
if (!in_sched_functions(ip))
return ip;
fp = *(u64 *)fp;
} while (count++ < 16);
return 0;

26
arch/x86/kernel/ptrace_32.c
View File

@ -39,10 +39,10 @@
static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
{
BUILD_BUG_ON(offsetof(struct pt_regs, ebx) != 0);
BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
if (regno > FS)
--regno;
return &regs->ebx + regno;
return &regs->bx + regno;
}
static int putreg(struct task_struct *child,
@ -80,7 +80,7 @@ static int putreg(struct task_struct *child,
clear_tsk_thread_flag(child, TIF_FORCED_TF);
else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
value |= X86_EFLAGS_TF;
value |= regs->eflags & ~FLAG_MASK;
value |= regs->flags & ~FLAG_MASK;
break;
}
*pt_regs_access(regs, regno) = value;
@ -98,7 +98,7 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
/*
* If the debugger set TF, hide it from the readout.
*/
retval = regs->eflags;
retval = regs->flags;
if (test_tsk_thread_flag(child, TIF_FORCED_TF))
retval &= ~X86_EFLAGS_TF;
break;
@ -369,8 +369,8 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
info.si_signo = SIGTRAP;
info.si_code = TRAP_BRKPT;
/* User-mode eip? */
info.si_addr = user_mode_vm(regs) ? (void __user *) regs->eip : NULL;
/* User-mode ip? */
info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
/* Send us the fake SIGTRAP */
force_sig_info(SIGTRAP, &info, tsk);
@ -392,12 +392,12 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
/* do the secure computing check first */
if (!entryexit)
secure_computing(regs->orig_eax);
secure_computing(regs->orig_ax);
if (unlikely(current->audit_context)) {
if (entryexit)
audit_syscall_exit(AUDITSC_RESULT(regs->eax),
regs->eax);
audit_syscall_exit(AUDITSC_RESULT(regs->ax),
regs->ax);
/* Debug traps, when using PTRACE_SINGLESTEP, must be sent only
* on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is
* not used, entry.S will call us only on syscall exit, not
@ -445,13 +445,13 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
ret = is_sysemu;
out:
if (unlikely(current->audit_context) && !entryexit)
audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_eax,
regs->ebx, regs->ecx, regs->edx, regs->esi);
audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_ax,
regs->bx, regs->cx, regs->dx, regs->si);
if (ret == 0)
return 0;
regs->orig_eax = -1; /* force skip of syscall restarting */
regs->orig_ax = -1; /* force skip of syscall restarting */
if (unlikely(current->audit_context))
audit_syscall_exit(AUDITSC_RESULT(regs->eax), regs->eax);
audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
return 1;
}

24
arch/x86/kernel/ptrace_64.c
View File

@ -119,7 +119,7 @@ static int putreg(struct task_struct *child,
clear_tsk_thread_flag(child, TIF_FORCED_TF);
else if (test_tsk_thread_flag(child, TIF_FORCED_TF))
value |= X86_EFLAGS_TF;
value |= regs->eflags & ~FLAG_MASK;
value |= regs->flags & ~FLAG_MASK;
break;
case offsetof(struct user_regs_struct,cs):
if ((value & 3) != 3)
@ -168,7 +168,7 @@ static unsigned long getreg(struct task_struct *child, unsigned long regno)
/*
* If the debugger set TF, hide it from the readout.
*/
val = regs->eflags;
val = regs->flags;
if (test_tsk_thread_flag(child, TIF_IA32))
val &= 0xffffffff;
if (test_tsk_thread_flag(child, TIF_FORCED_TF))
@ -383,9 +383,9 @@ static void syscall_trace(struct pt_regs *regs)
{
#if 0
printk("trace %s rip %lx rsp %lx rax %d origrax %d caller %lx tiflags %x ptrace %x\n",
printk("trace %s ip %lx sp %lx ax %d origrax %d caller %lx tiflags %x ptrace %x\n",
current->comm,
regs->rip, regs->rsp, regs->rax, regs->orig_rax, __builtin_return_address(0),
regs->ip, regs->sp, regs->ax, regs->orig_ax, __builtin_return_address(0),
current_thread_info()->flags, current->ptrace);
#endif
@ -405,7 +405,7 @@ static void syscall_trace(struct pt_regs *regs)
asmlinkage void syscall_trace_enter(struct pt_regs *regs)
{
/* do the secure computing check first */
secure_computing(regs->orig_rax);
secure_computing(regs->orig_ax);
if (test_thread_flag(TIF_SYSCALL_TRACE)
&& (current->ptrace & PT_PTRACED))
@ -414,14 +414,14 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
if (unlikely(current->audit_context)) {
if (test_thread_flag(TIF_IA32)) {
audit_syscall_entry(AUDIT_ARCH_I386,
regs->orig_rax,
regs->rbx, regs->rcx,
regs->rdx, regs->rsi);
regs->orig_ax,
regs->bx, regs->cx,
regs->dx, regs->si);
} else {
audit_syscall_entry(AUDIT_ARCH_X86_64,
regs->orig_rax,
regs->rdi, regs->rsi,
regs->rdx, regs->r10);
regs->orig_ax,
regs->di, regs->si,
regs->dx, regs->r10);
}
}
}
@ -429,7 +429,7 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
asmlinkage void syscall_trace_leave(struct pt_regs *regs)
{
if (unlikely(current->audit_context))
audit_syscall_exit(AUDITSC_RESULT(regs->rax), regs->rax);
audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
if ((test_thread_flag(TIF_SYSCALL_TRACE)
|| test_thread_flag(TIF_SINGLESTEP))

192
arch/x86/kernel/signal_32.c
View File

@ -82,14 +82,14 @@ sys_sigaction(int sig, const struct old_sigaction __user *act,
}
asmlinkage int
sys_sigaltstack(unsigned long ebx)
sys_sigaltstack(unsigned long bx)
{
/* This is needed to make gcc realize it doesn't own the "struct pt_regs" */
struct pt_regs *regs = (struct pt_regs *)&ebx;
const stack_t __user *uss = (const stack_t __user *)ebx;
stack_t __user *uoss = (stack_t __user *)regs->ecx;
struct pt_regs *regs = (struct pt_regs *)&bx;
const stack_t __user *uss = (const stack_t __user *)bx;
stack_t __user *uoss = (stack_t __user *)regs->cx;
return do_sigaltstack(uss, uoss, regs->esp);
return do_sigaltstack(uss, uoss, regs->sp);
}
@ -105,17 +105,17 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
/* Always make any pending restarted system calls return -EINTR */
current_thread_info()->restart_block.fn = do_no_restart_syscall;
#define COPY(x) err |= __get_user(regs->x, &sc->x)
#define COPY(x) err |= __get_user(regs->x, &sc->e ## x)
#define COPY_SEG(seg) \
{ unsigned short tmp; \
err |= __get_user(tmp, &sc->seg); \
regs->x##seg = tmp; }
regs->seg = tmp; }
#define COPY_SEG_STRICT(seg) \
{ unsigned short tmp; \
err |= __get_user(tmp, &sc->seg); \
regs->x##seg = tmp|3; }
regs->seg = tmp|3; }
#define GET_SEG(seg) \
{ unsigned short tmp; \
@ -131,22 +131,22 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
COPY_SEG(fs);
COPY_SEG(es);
COPY_SEG(ds);
COPY(edi);
COPY(esi);
COPY(ebp);
COPY(esp);
COPY(ebx);
COPY(edx);
COPY(ecx);
COPY(eip);
COPY(di);
COPY(si);
COPY(bp);
COPY(sp);
COPY(bx);
COPY(dx);
COPY(cx);
COPY(ip);
COPY_SEG_STRICT(cs);
COPY_SEG_STRICT(ss);
{
unsigned int tmpflags;
err |= __get_user(tmpflags, &sc->eflags);
regs->eflags = (regs->eflags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
regs->orig_eax = -1; /* disable syscall checks */
regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
regs->orig_ax = -1; /* disable syscall checks */
}
{
@ -175,9 +175,9 @@ badframe:
asmlinkage int sys_sigreturn(unsigned long __unused)
{
struct pt_regs *regs = (struct pt_regs *) &__unused;
struct sigframe __user *frame = (struct sigframe __user *)(regs->esp - 8);
struct sigframe __user *frame = (struct sigframe __user *)(regs->sp - 8);
sigset_t set;
int eax;
int ax;
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
@ -193,17 +193,17 @@ asmlinkage int sys_sigreturn(unsigned long __unused)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
if (restore_sigcontext(regs, &frame->sc, &eax))
if (restore_sigcontext(regs, &frame->sc, &ax))
goto badframe;
return eax;
return ax;
badframe:
if (show_unhandled_signals && printk_ratelimit())
printk("%s%s[%d] bad frame in sigreturn frame:%p eip:%lx"
" esp:%lx oeax:%lx\n",
printk("%s%s[%d] bad frame in sigreturn frame:%p ip:%lx"
" sp:%lx oeax:%lx\n",
task_pid_nr(current) > 1 ? KERN_INFO : KERN_EMERG,
current->comm, task_pid_nr(current), frame, regs->eip,
regs->esp, regs->orig_eax);
current->comm, task_pid_nr(current), frame, regs->ip,
regs->sp, regs->orig_ax);
force_sig(SIGSEGV, current);
return 0;
@ -212,9 +212,9 @@ badframe:
asmlinkage int sys_rt_sigreturn(unsigned long __unused)
{
struct pt_regs *regs = (struct pt_regs *) &__unused;
struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(regs->esp - 4);
struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(regs->sp - 4);
sigset_t set;
int eax;
int ax;
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
@ -227,13 +227,13 @@ asmlinkage int sys_rt_sigreturn(unsigned long __unused)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &eax))
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
goto badframe;
if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->esp) == -EFAULT)
if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
goto badframe;
return eax;
return ax;
badframe:
force_sig(SIGSEGV, current);
@ -250,27 +250,27 @@ setup_sigcontext(struct sigcontext __user *sc, struct _fpstate __user *fpstate,
{
int tmp, err = 0;
err |= __put_user(regs->xfs, (unsigned int __user *)&sc->fs);
err |= __put_user(regs->fs, (unsigned int __user *)&sc->fs);
savesegment(gs, tmp);
err |= __put_user(tmp, (unsigned int __user *)&sc->gs);
err |= __put_user(regs->xes, (unsigned int __user *)&sc->es);
err |= __put_user(regs->xds, (unsigned int __user *)&sc->ds);
err |= __put_user(regs->edi, &sc->edi);
err |= __put_user(regs->esi, &sc->esi);
err |= __put_user(regs->ebp, &sc->ebp);
err |= __put_user(regs->esp, &sc->esp);
err |= __put_user(regs->ebx, &sc->ebx);
err |= __put_user(regs->edx, &sc->edx);
err |= __put_user(regs->ecx, &sc->ecx);
err |= __put_user(regs->eax, &sc->eax);
err |= __put_user(regs->es, (unsigned int __user *)&sc->es);
err |= __put_user(regs->ds, (unsigned int __user *)&sc->ds);
err |= __put_user(regs->di, &sc->edi);
err |= __put_user(regs->si, &sc->esi);
err |= __put_user(regs->bp, &sc->ebp);
err |= __put_user(regs->sp, &sc->esp);
err |= __put_user(regs->bx, &sc->ebx);
err |= __put_user(regs->dx, &sc->edx);
err |= __put_user(regs->cx, &sc->ecx);
err |= __put_user(regs->ax, &sc->eax);
err |= __put_user(current->thread.trap_no, &sc->trapno);
err |= __put_user(current->thread.error_code, &sc->err);
err |= __put_user(regs->eip, &sc->eip);
err |= __put_user(regs->xcs, (unsigned int __user *)&sc->cs);
err |= __put_user(regs->eflags, &sc->eflags);
err |= __put_user(regs->esp, &sc->esp_at_signal);
err |= __put_user(regs->xss, (unsigned int __user *)&sc->ss);
err |= __put_user(regs->ip, &sc->eip);
err |= __put_user(regs->cs, (unsigned int __user *)&sc->cs);
err |= __put_user(regs->flags, &sc->eflags);
err |= __put_user(regs->sp, &sc->esp_at_signal);
err |= __put_user(regs->ss, (unsigned int __user *)&sc->ss);
tmp = save_i387(fpstate);
if (tmp < 0)
@ -291,36 +291,36 @@ setup_sigcontext(struct sigcontext __user *sc, struct _fpstate __user *fpstate,
static inline void __user *
get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
{
unsigned long esp;
unsigned long sp;
/* Default to using normal stack */
esp = regs->esp;
sp = regs->sp;
/*
* If we are on the alternate signal stack and would overflow it, don't.
* Return an always-bogus address instead so we will die with SIGSEGV.
*/
if (on_sig_stack(esp) && !likely(on_sig_stack(esp - frame_size)))
if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size)))
return (void __user *) -1L;
/* This is the X/Open sanctioned signal stack switching. */
if (ka->sa.sa_flags & SA_ONSTACK) {
if (sas_ss_flags(esp) == 0)
esp = current->sas_ss_sp + current->sas_ss_size;
if (sas_ss_flags(sp) == 0)
sp = current->sas_ss_sp + current->sas_ss_size;
}
/* This is the legacy signal stack switching. */
else if ((regs->xss & 0xffff) != __USER_DS &&
else if ((regs->ss & 0xffff) != __USER_DS &&
!(ka->sa.sa_flags & SA_RESTORER) &&
ka->sa.sa_restorer) {
esp = (unsigned long) ka->sa.sa_restorer;
sp = (unsigned long) ka->sa.sa_restorer;
}
esp -= frame_size;
sp -= frame_size;
/* Align the stack pointer according to the i386 ABI,
* i.e. so that on function entry ((sp + 4) & 15) == 0. */
esp = ((esp + 4) & -16ul) - 4;
return (void __user *) esp;
sp = ((sp + 4) & -16ul) - 4;
return (void __user *) sp;
}
/* These symbols are defined with the addresses in the vsyscall page.
@ -387,16 +387,16 @@ static int setup_frame(int sig, struct k_sigaction *ka,
goto give_sigsegv;
/* Set up registers for signal handler */
regs->esp = (unsigned long) frame;
regs->eip = (unsigned long) ka->sa.sa_handler;
regs->eax = (unsigned long) sig;
regs->edx = (unsigned long) 0;
regs->ecx = (unsigned long) 0;
regs->sp = (unsigned long) frame;
regs->ip = (unsigned long) ka->sa.sa_handler;
regs->ax = (unsigned long) sig;
regs->dx = (unsigned long) 0;
regs->cx = (unsigned long) 0;
regs->xds = __USER_DS;
regs->xes = __USER_DS;
regs->xss = __USER_DS;
regs->xcs = __USER_CS;
regs->ds = __USER_DS;
regs->es = __USER_DS;
regs->ss = __USER_DS;
regs->cs = __USER_CS;
/*
* Clear TF when entering the signal handler, but
@ -404,13 +404,13 @@ static int setup_frame(int sig, struct k_sigaction *ka,
* The tracer may want to single-step inside the
* handler too.
*/
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
#if DEBUG_SIG
printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
current->comm, current->pid, frame, regs->eip, frame->pretcode);
current->comm, current->pid, frame, regs->ip, frame->pretcode);
#endif
return 0;
@ -450,7 +450,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= __put_user(0, &frame->uc.uc_flags);
err |= __put_user(0, &frame->uc.uc_link);
err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
err |= __put_user(sas_ss_flags(regs->esp),
err |= __put_user(sas_ss_flags(regs->sp),
&frame->uc.uc_stack.ss_flags);
err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
err |= setup_sigcontext(&frame->uc.uc_mcontext, &frame->fpstate,
@ -466,7 +466,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= __put_user(restorer, &frame->pretcode);
/*
* This is movl $,%eax ; int $0x80
* This is movl $,%ax ; int $0x80
*
* WE DO NOT USE IT ANY MORE! It's only left here for historical
* reasons and because gdb uses it as a signature to notice
@ -480,16 +480,16 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
goto give_sigsegv;
/* Set up registers for signal handler */
regs->esp = (unsigned long) frame;
regs->eip = (unsigned long) ka->sa.sa_handler;
regs->eax = (unsigned long) usig;
regs->edx = (unsigned long) &frame->info;
regs->ecx = (unsigned long) &frame->uc;
regs->sp = (unsigned long) frame;
regs->ip = (unsigned long) ka->sa.sa_handler;
regs->ax = (unsigned long) usig;
regs->dx = (unsigned long) &frame->info;
regs->cx = (unsigned long) &frame->uc;
regs->xds = __USER_DS;
regs->xes = __USER_DS;
regs->xss = __USER_DS;
regs->xcs = __USER_CS;
regs->ds = __USER_DS;
regs->es = __USER_DS;
regs->ss = __USER_DS;
regs->cs = __USER_CS;
/*
* Clear TF when entering the signal handler, but
@ -497,13 +497,13 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
* The tracer may want to single-step inside the
* handler too.
*/
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
#if DEBUG_SIG
printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
current->comm, current->pid, frame, regs->eip, frame->pretcode);
current->comm, current->pid, frame, regs->ip, frame->pretcode);
#endif
return 0;
@ -524,23 +524,23 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
int ret;
/* Are we from a system call? */
if (regs->orig_eax >= 0) {
if (regs->orig_ax >= 0) {
/* If so, check system call restarting.. */
switch (regs->eax) {
switch (regs->ax) {
case -ERESTART_RESTARTBLOCK:
case -ERESTARTNOHAND:
regs->eax = -EINTR;
regs->ax = -EINTR;
break;
case -ERESTARTSYS:
if (!(ka->sa.sa_flags & SA_RESTART)) {
regs->eax = -EINTR;
regs->ax = -EINTR;
break;
}
/* fallthrough */
case -ERESTARTNOINTR:
regs->eax = regs->orig_eax;
regs->eip -= 2;
regs->ax = regs->orig_ax;
regs->ip -= 2;
}
}
@ -548,9 +548,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
* If TF is set due to a debugger (TIF_FORCED_TF), clear the TF
* flag so that register information in the sigcontext is correct.
*/
if (unlikely(regs->eflags & X86_EFLAGS_TF) &&
if (unlikely(regs->flags & X86_EFLAGS_TF) &&
likely(test_and_clear_thread_flag(TIF_FORCED_TF)))
regs->eflags &= ~X86_EFLAGS_TF;
regs->flags &= ~X86_EFLAGS_TF;
/* Set up the stack frame */
if (ka->sa.sa_flags & SA_SIGINFO)
@ -622,19 +622,19 @@ static void fastcall do_signal(struct pt_regs *regs)
}
/* Did we come from a system call? */
if (regs->orig_eax >= 0) {
if (regs->orig_ax >= 0) {
/* Restart the system call - no handlers present */
switch (regs->eax) {
switch (regs->ax) {
case -ERESTARTNOHAND:
case -ERESTARTSYS:
case -ERESTARTNOINTR:
regs->eax = regs->orig_eax;
regs->eip -= 2;
regs->ax = regs->orig_ax;
regs->ip -= 2;
break;
case -ERESTART_RESTARTBLOCK:
regs->eax = __NR_restart_syscall;
regs->eip -= 2;
regs->ax = __NR_restart_syscall;
regs->ip -= 2;
break;
}
}
@ -657,7 +657,7 @@ void do_notify_resume(struct pt_regs *regs, void *_unused,
{
/* Pending single-step? */
if (thread_info_flags & _TIF_SINGLESTEP) {
regs->eflags |= TF_MASK;
regs->flags |= TF_MASK;
clear_thread_flag(TIF_SINGLESTEP);
}

115
arch/x86/kernel/signal_64.c
View File

@ -39,7 +39,7 @@ asmlinkage long
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
struct pt_regs *regs)
{
return do_sigaltstack(uss, uoss, regs->rsp);
return do_sigaltstack(uss, uoss, regs->sp);
}
@ -62,10 +62,11 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
/* Always make any pending restarted system calls return -EINTR */
current_thread_info()->restart_block.fn = do_no_restart_syscall;
#define COPYR(x) err |= __get_user(regs->x, &sc->r ## x)
#define COPY(x) err |= __get_user(regs->x, &sc->x)
COPY(rdi); COPY(rsi); COPY(rbp); COPY(rsp); COPY(rbx);
COPY(rdx); COPY(rcx); COPY(rip);
COPYR(di); COPYR(si); COPYR(bp); COPYR(sp); COPYR(bx);
COPYR(dx); COPYR(cx); COPYR(ip);
COPY(r8);
COPY(r9);
COPY(r10);
@ -87,8 +88,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
{
unsigned int tmpflags;
err |= __get_user(tmpflags, &sc->eflags);
regs->eflags = (regs->eflags & ~0x40DD5) | (tmpflags & 0x40DD5);
regs->orig_rax = -1; /* disable syscall checks */
regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
regs->orig_ax = -1; /* disable syscall checks */
}
{
@ -119,9 +120,9 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
{
struct rt_sigframe __user *frame;
sigset_t set;
unsigned long eax;
unsigned long ax;
frame = (struct rt_sigframe __user *)(regs->rsp - 8);
frame = (struct rt_sigframe __user *)(regs->sp - 8);
if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) {
goto badframe;
}
@ -135,17 +136,17 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &eax))
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
goto badframe;
#ifdef DEBUG_SIG
printk("%d sigreturn rip:%lx rsp:%lx frame:%p rax:%lx\n",current->pid,regs->rip,regs->rsp,frame,eax);
printk("%d sigreturn ip:%lx sp:%lx frame:%p ax:%lx\n",current->pid,regs->ip,regs->sp,frame,ax);
#endif
if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->rsp) == -EFAULT)
if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
goto badframe;
return eax;
return ax;
badframe:
signal_fault(regs,frame,"sigreturn");
@ -165,14 +166,14 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
err |= __put_user(0, &sc->gs);
err |= __put_user(0, &sc->fs);
err |= __put_user(regs->rdi, &sc->rdi);
err |= __put_user(regs->rsi, &sc->rsi);
err |= __put_user(regs->rbp, &sc->rbp);
err |= __put_user(regs->rsp, &sc->rsp);
err |= __put_user(regs->rbx, &sc->rbx);
err |= __put_user(regs->rdx, &sc->rdx);
err |= __put_user(regs->rcx, &sc->rcx);
err |= __put_user(regs->rax, &sc->rax);
err |= __put_user(regs->di, &sc->rdi);
err |= __put_user(regs->si, &sc->rsi);
err |= __put_user(regs->bp, &sc->rbp);
err |= __put_user(regs->sp, &sc->rsp);
err |= __put_user(regs->bx, &sc->rbx);
err |= __put_user(regs->dx, &sc->rdx);
err |= __put_user(regs->cx, &sc->rcx);
err |= __put_user(regs->ax, &sc->rax);
err |= __put_user(regs->r8, &sc->r8);
err |= __put_user(regs->r9, &sc->r9);
err |= __put_user(regs->r10, &sc->r10);
@ -183,8 +184,8 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
err |= __put_user(regs->r15, &sc->r15);
err |= __put_user(me->thread.trap_no, &sc->trapno);
err |= __put_user(me->thread.error_code, &sc->err);
err |= __put_user(regs->rip, &sc->rip);
err |= __put_user(regs->eflags, &sc->eflags);
err |= __put_user(regs->ip, &sc->rip);
err |= __put_user(regs->flags, &sc->eflags);
err |= __put_user(mask, &sc->oldmask);
err |= __put_user(me->thread.cr2, &sc->cr2);
@ -198,18 +199,18 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
static void __user *
get_stack(struct k_sigaction *ka, struct pt_regs *regs, unsigned long size)
{
unsigned long rsp;
unsigned long sp;
/* Default to using normal stack - redzone*/
rsp = regs->rsp - 128;
sp = regs->sp - 128;
/* This is the X/Open sanctioned signal stack switching. */
if (ka->sa.sa_flags & SA_ONSTACK) {
if (sas_ss_flags(rsp) == 0)
rsp = current->sas_ss_sp + current->sas_ss_size;
if (sas_ss_flags(sp) == 0)
sp = current->sas_ss_sp + current->sas_ss_size;
}
return (void __user *)round_down(rsp - size, 16);
return (void __user *)round_down(sp - size, 16);
}
static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
@ -246,7 +247,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= __put_user(0, &frame->uc.uc_flags);
err |= __put_user(0, &frame->uc.uc_link);
err |= __put_user(me->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
err |= __put_user(sas_ss_flags(regs->rsp),
err |= __put_user(sas_ss_flags(regs->sp),
&frame->uc.uc_stack.ss_flags);
err |= __put_user(me->sas_ss_size, &frame->uc.uc_stack.ss_size);
err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], me);
@ -271,21 +272,21 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
goto give_sigsegv;
#ifdef DEBUG_SIG
printk("%d old rip %lx old rsp %lx old rax %lx\n", current->pid,regs->rip,regs->rsp,regs->rax);
printk("%d old ip %lx old sp %lx old ax %lx\n", current->pid,regs->ip,regs->sp,regs->ax);
#endif
/* Set up registers for signal handler */
regs->rdi = sig;
regs->di = sig;
/* In case the signal handler was declared without prototypes */
regs->rax = 0;
regs->ax = 0;
/* This also works for non SA_SIGINFO handlers because they expect the
next argument after the signal number on the stack. */
regs->rsi = (unsigned long)&frame->info;
regs->rdx = (unsigned long)&frame->uc;
regs->rip = (unsigned long) ka->sa.sa_handler;
regs->si = (unsigned long)&frame->info;
regs->dx = (unsigned long)&frame->uc;
regs->ip = (unsigned long) ka->sa.sa_handler;
regs->rsp = (unsigned long)frame;
regs->sp = (unsigned long)frame;
/* Set up the CS register to run signal handlers in 64-bit mode,
even if the handler happens to be interrupting 32-bit code. */
@ -295,12 +296,12 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
see include/asm-x86_64/uaccess.h for details. */
set_fs(USER_DS);
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
#ifdef DEBUG_SIG
printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%p\n",
current->comm, current->pid, frame, regs->rip, frame->pretcode);
current->comm, current->pid, frame, regs->ip, frame->pretcode);
#endif
return 0;
@ -321,29 +322,29 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
int ret;
#ifdef DEBUG_SIG
printk("handle_signal pid:%d sig:%lu rip:%lx rsp:%lx regs=%p\n",
printk("handle_signal pid:%d sig:%lu ip:%lx sp:%lx regs=%p\n",
current->pid, sig,
regs->rip, regs->rsp, regs);
regs->ip, regs->sp, regs);
#endif
/* Are we from a system call? */
if ((long)regs->orig_rax >= 0) {
if ((long)regs->orig_ax >= 0) {
/* If so, check system call restarting.. */
switch (regs->rax) {
switch (regs->ax) {
case -ERESTART_RESTARTBLOCK:
case -ERESTARTNOHAND:
regs->rax = -EINTR;
regs->ax = -EINTR;
break;
case -ERESTARTSYS:
if (!(ka->sa.sa_flags & SA_RESTART)) {
regs->rax = -EINTR;
regs->ax = -EINTR;
break;
}
/* fallthrough */
case -ERESTARTNOINTR:
regs->rax = regs->orig_rax;
regs->rip -= 2;
regs->ax = regs->orig_ax;
regs->ip -= 2;
break;
}
}
@ -352,9 +353,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
* If TF is set due to a debugger (TIF_FORCED_TF), clear the TF
* flag so that register information in the sigcontext is correct.
*/
if (unlikely(regs->eflags & X86_EFLAGS_TF) &&
if (unlikely(regs->flags & X86_EFLAGS_TF) &&
likely(test_and_clear_thread_flag(TIF_FORCED_TF)))
regs->eflags &= ~X86_EFLAGS_TF;
regs->flags &= ~X86_EFLAGS_TF;
#ifdef CONFIG_IA32_EMULATION
if (test_thread_flag(TIF_IA32)) {
@ -426,21 +427,21 @@ static void do_signal(struct pt_regs *regs)
}
/* Did we come from a system call? */
if ((long)regs->orig_rax >= 0) {
if ((long)regs->orig_ax >= 0) {
/* Restart the system call - no handlers present */
long res = regs->rax;
long res = regs->ax;
switch (res) {
case -ERESTARTNOHAND:
case -ERESTARTSYS:
case -ERESTARTNOINTR:
regs->rax = regs->orig_rax;
regs->rip -= 2;
regs->ax = regs->orig_ax;
regs->ip -= 2;
break;
case -ERESTART_RESTARTBLOCK:
regs->rax = test_thread_flag(TIF_IA32) ?
regs->ax = test_thread_flag(TIF_IA32) ?
__NR_ia32_restart_syscall :
__NR_restart_syscall;
regs->rip -= 2;
regs->ip -= 2;
break;
}
}
@ -457,13 +458,13 @@ void
do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
{
#ifdef DEBUG_SIG
printk("do_notify_resume flags:%x rip:%lx rsp:%lx caller:%p pending:%x\n",
thread_info_flags, regs->rip, regs->rsp, __builtin_return_address(0),signal_pending(current));
printk("do_notify_resume flags:%x ip:%lx sp:%lx caller:%p pending:%x\n",
thread_info_flags, regs->ip, regs->sp, __builtin_return_address(0),signal_pending(current));
#endif
/* Pending single-step? */
if (thread_info_flags & _TIF_SINGLESTEP) {
regs->eflags |= TF_MASK;
regs->flags |= TF_MASK;
clear_thread_flag(TIF_SINGLESTEP);
}
@ -485,8 +486,8 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
{
struct task_struct *me = current;
if (show_unhandled_signals && printk_ratelimit())
printk("%s[%d] bad frame in %s frame:%p rip:%lx rsp:%lx orax:%lx\n",
me->comm,me->pid,where,frame,regs->rip,regs->rsp,regs->orig_rax);
printk("%s[%d] bad frame in %s frame:%p ip:%lx sp:%lx orax:%lx\n",
me->comm,me->pid,where,frame,regs->ip,regs->sp,regs->orig_ax);
force_sig(SIGSEGV, me);
}

2
arch/x86/kernel/smp_64.c
View File

@ -136,7 +136,7 @@ asmlinkage void smp_invalidate_interrupt(struct pt_regs *regs)
* orig_rax contains the negated interrupt vector.
* Use that to determine where the sender put the data.
*/
sender = ~regs->orig_rax - INVALIDATE_TLB_VECTOR_START;
sender = ~regs->orig_ax - INVALIDATE_TLB_VECTOR_START;
f = &per_cpu(flush_state, sender);
if (!cpu_isset(cpu, f->flush_cpumask))

10
arch/x86/kernel/smpboot_32.c
View File

@ -447,7 +447,7 @@ void __devinit initialize_secondary(void)
{
/*
* We don't actually need to load the full TSS,
* basically just the stack pointer and the eip.
* basically just the stack pointer and the ip.
*/
asm volatile(
@ -459,7 +459,7 @@ void __devinit initialize_secondary(void)
/* Static state in head.S used to set up a CPU */
extern struct {
void * esp;
void * sp;
unsigned short ss;
} stack_start;
@ -667,7 +667,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip)
* target processor state.
*/
startup_ipi_hook(phys_apicid, (unsigned long) start_secondary,
(unsigned long) stack_start.esp);
(unsigned long) stack_start.sp);
/*
* Run STARTUP IPI loop.
@ -806,9 +806,9 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
alternatives_smp_switch(1);
/* So we see what's up */
printk("Booting processor %d/%d eip %lx\n", cpu, apicid, start_eip);
printk("Booting processor %d/%d ip %lx\n", cpu, apicid, start_eip);
/* Stack for startup_32 can be just as for start_secondary onwards */
stack_start.esp = (void *) idle->thread.esp;
stack_start.sp = (void *) idle->thread.esp;
irq_ctx_init(cpu);

15
arch/x86/kernel/step.c
View File

@ -12,17 +12,12 @@ unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *r
{
unsigned long addr, seg;
#ifdef CONFIG_X86_64
addr = regs->rip;
addr = regs->ip;
seg = regs->cs & 0xffff;
#else
addr = regs->eip;
seg = regs->xcs & 0xffff;
if (regs->eflags & X86_EFLAGS_VM) {
if (v8086_mode(regs)) {
addr = (addr & 0xffff) + (seg << 4);
return addr;
}
#endif
/*
* We'll assume that the code segments in the GDT
@ -124,11 +119,11 @@ static int enable_single_step(struct task_struct *child)
/*
* If TF was already set, don't do anything else
*/
if (regs->eflags & X86_EFLAGS_TF)
if (regs->flags & X86_EFLAGS_TF)
return 0;
/* Set TF on the kernel stack.. */
regs->eflags |= X86_EFLAGS_TF;
regs->flags |= X86_EFLAGS_TF;
/*
* ..but if TF is changed by the instruction we will trace,
@ -203,5 +198,5 @@ void user_disable_single_step(struct task_struct *child)
/* But touch TF only if it was set by us.. */
if (test_and_clear_tsk_thread_flag(child, TIF_FORCED_TF))
task_pt_regs(child)->eflags &= ~X86_EFLAGS_TF;
task_pt_regs(child)->flags &= ~X86_EFLAGS_TF;
}

32
arch/x86/kernel/suspend_asm_64.S
View File

@ -18,13 +18,13 @@
ENTRY(swsusp_arch_suspend)
movq $saved_context, %rax
movq %rsp, pt_regs_rsp(%rax)
movq %rbp, pt_regs_rbp(%rax)
movq %rsi, pt_regs_rsi(%rax)
movq %rdi, pt_regs_rdi(%rax)
movq %rbx, pt_regs_rbx(%rax)
movq %rcx, pt_regs_rcx(%rax)
movq %rdx, pt_regs_rdx(%rax)
movq %rsp, pt_regs_sp(%rax)
movq %rbp, pt_regs_bp(%rax)
movq %rsi, pt_regs_si(%rax)
movq %rdi, pt_regs_di(%rax)
movq %rbx, pt_regs_bx(%rax)
movq %rcx, pt_regs_cx(%rax)
movq %rdx, pt_regs_dx(%rax)
movq %r8, pt_regs_r8(%rax)
movq %r9, pt_regs_r9(%rax)
movq %r10, pt_regs_r10(%rax)
@ -34,7 +34,7 @@ ENTRY(swsusp_arch_suspend)
movq %r14, pt_regs_r14(%rax)
movq %r15, pt_regs_r15(%rax)
pushfq
popq pt_regs_eflags(%rax)
popq pt_regs_flags(%rax)
/* save the address of restore_registers */
movq $restore_registers, %rax
@ -115,13 +115,13 @@ ENTRY(restore_registers)
/* We don't restore %rax, it must be 0 anyway */
movq $saved_context, %rax
movq pt_regs_rsp(%rax), %rsp
movq pt_regs_rbp(%rax), %rbp
movq pt_regs_rsi(%rax), %rsi
movq pt_regs_rdi(%rax), %rdi
movq pt_regs_rbx(%rax), %rbx
movq pt_regs_rcx(%rax), %rcx
movq pt_regs_rdx(%rax), %rdx
movq pt_regs_sp(%rax), %rsp
movq pt_regs_bp(%rax), %rbp
movq pt_regs_si(%rax), %rsi
movq pt_regs_di(%rax), %rdi
movq pt_regs_bx(%rax), %rbx
movq pt_regs_cx(%rax), %rcx
movq pt_regs_dx(%rax), %rdx
movq pt_regs_r8(%rax), %r8
movq pt_regs_r9(%rax), %r9
movq pt_regs_r10(%rax), %r10
@ -130,7 +130,7 @@ ENTRY(restore_registers)
movq pt_regs_r13(%rax), %r13
movq pt_regs_r14(%rax), %r14
movq pt_regs_r15(%rax), %r15
pushq pt_regs_eflags(%rax)
pushq pt_regs_flags(%rax)
popfq
xorq %rax, %rax

8
arch/x86/kernel/time_32.c
View File

@ -49,15 +49,15 @@ unsigned long profile_pc(struct pt_regs *regs)
unsigned long pc = instruction_pointer(regs);
#ifdef CONFIG_SMP
if (!v8086_mode(regs) && SEGMENT_IS_KERNEL_CODE(regs->xcs) &&
if (!v8086_mode(regs) && SEGMENT_IS_KERNEL_CODE(regs->cs) &&
in_lock_functions(pc)) {
#ifdef CONFIG_FRAME_POINTER
return *(unsigned long *)(regs->ebp + 4);
return *(unsigned long *)(regs->bp + 4);
#else
unsigned long *sp = (unsigned long *)&regs->esp;
unsigned long *sp = (unsigned long *)&regs->sp;
/* Return address is either directly at stack pointer
or above a saved eflags. Eflags has bits 22-31 zero,
or above a saved flags. Eflags has bits 22-31 zero,
kernel addresses don't. */
if (sp[0] >> 22)
return sp[0];

4
arch/x86/kernel/time_64.c
View File

@ -29,10 +29,10 @@ unsigned long profile_pc(struct pt_regs *regs)
unsigned long pc = instruction_pointer(regs);
/* Assume the lock function has either no stack frame or a copy
of eflags from PUSHF
of flags from PUSHF
Eflags always has bits 22 and up cleared unlike kernel addresses. */
if (!user_mode(regs) && in_lock_functions(pc)) {
unsigned long *sp = (unsigned long *)regs->rsp;
unsigned long *sp = (unsigned long *)regs->sp;
if (sp[0] >> 22)
return sp[0];
if (sp[1] >> 22)

114
arch/x86/kernel/traps_32.c
View File

@ -114,11 +114,11 @@ struct stack_frame {
};
static inline unsigned long print_context_stack(struct thread_info *tinfo,
unsigned long *stack, unsigned long ebp,
unsigned long *stack, unsigned long bp,
const struct stacktrace_ops *ops, void *data)
{
#ifdef CONFIG_FRAME_POINTER
struct stack_frame *frame = (struct stack_frame *)ebp;
struct stack_frame *frame = (struct stack_frame *)bp;
while (valid_stack_ptr(tinfo, frame, sizeof(*frame))) {
struct stack_frame *next;
unsigned long addr;
@ -145,7 +145,7 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
ops->address(data, addr);
}
#endif
return ebp;
return bp;
}
#define MSG(msg) ops->warning(data, msg)
@ -154,7 +154,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
unsigned long *stack,
const struct stacktrace_ops *ops, void *data)
{
unsigned long ebp = 0;
unsigned long bp = 0;
if (!task)
task = current;
@ -167,13 +167,13 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
}
#ifdef CONFIG_FRAME_POINTER
if (!ebp) {
if (!bp) {
if (task == current) {
/* Grab ebp right from our regs */
asm ("movl %%ebp, %0" : "=r" (ebp) : );
/* Grab bp right from our regs */
asm ("movl %%ebp, %0" : "=r" (bp) : );
} else {
/* ebp is the last reg pushed by switch_to */
ebp = *(unsigned long *) task->thread.esp;
/* bp is the last reg pushed by switch_to */
bp = *(unsigned long *) task->thread.esp;
}
}
#endif
@ -182,7 +182,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
struct thread_info *context;
context = (struct thread_info *)
((unsigned long)stack & (~(THREAD_SIZE - 1)));
ebp = print_context_stack(context, stack, ebp, ops, data);
bp = print_context_stack(context, stack, bp, ops, data);
/* Should be after the line below, but somewhere
in early boot context comes out corrupted and we
can't reference it -AK */
@ -246,19 +246,19 @@ void show_trace(struct task_struct *task, struct pt_regs *regs,
}
static void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
unsigned long *esp, char *log_lvl)
unsigned long *sp, char *log_lvl)
{
unsigned long *stack;
int i;
if (esp == NULL) {
if (sp == NULL) {
if (task)
esp = (unsigned long*)task->thread.esp;
sp = (unsigned long*)task->thread.esp;
else
esp = (unsigned long *)&esp;
sp = (unsigned long *)&sp;
}
stack = esp;
stack = sp;
for(i = 0; i < kstack_depth_to_print; i++) {
if (kstack_end(stack))
break;
@ -267,13 +267,13 @@ static void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
printk("%08lx ", *stack++);
}
printk("\n%sCall Trace:\n", log_lvl);
show_trace_log_lvl(task, regs, esp, log_lvl);
show_trace_log_lvl(task, regs, sp, log_lvl);
}
void show_stack(struct task_struct *task, unsigned long *esp)
void show_stack(struct task_struct *task, unsigned long *sp)
{
printk(" ");
show_stack_log_lvl(task, NULL, esp, "");
show_stack_log_lvl(task, NULL, sp, "");
}
/*
@ -307,30 +307,30 @@ void show_registers(struct pt_regs *regs)
* time of the fault..
*/
if (!user_mode_vm(regs)) {
u8 *eip;
u8 *ip;
unsigned int code_prologue = code_bytes * 43 / 64;
unsigned int code_len = code_bytes;
unsigned char c;
printk("\n" KERN_EMERG "Stack: ");
show_stack_log_lvl(NULL, regs, &regs->esp, KERN_EMERG);
show_stack_log_lvl(NULL, regs, &regs->sp, KERN_EMERG);
printk(KERN_EMERG "Code: ");
eip = (u8 *)regs->eip - code_prologue;
if (eip < (u8 *)PAGE_OFFSET ||
probe_kernel_address(eip, c)) {
ip = (u8 *)regs->ip - code_prologue;
if (ip < (u8 *)PAGE_OFFSET ||
probe_kernel_address(ip, c)) {
/* try starting at EIP */
eip = (u8 *)regs->eip;
ip = (u8 *)regs->ip;
code_len = code_len - code_prologue + 1;
}
for (i = 0; i < code_len; i++, eip++) {
if (eip < (u8 *)PAGE_OFFSET ||
probe_kernel_address(eip, c)) {
for (i = 0; i < code_len; i++, ip++) {
if (ip < (u8 *)PAGE_OFFSET ||
probe_kernel_address(ip, c)) {
printk(" Bad EIP value.");
break;
}
if (eip == (u8 *)regs->eip)
if (ip == (u8 *)regs->ip)
printk("<%02x> ", c);
else
printk("%02x ", c);
@ -339,13 +339,13 @@ void show_registers(struct pt_regs *regs)
printk("\n");
}
int is_valid_bugaddr(unsigned long eip)
int is_valid_bugaddr(unsigned long ip)
{
unsigned short ud2;
if (eip < PAGE_OFFSET)
if (ip < PAGE_OFFSET)
return 0;
if (probe_kernel_address((unsigned short *)eip, ud2))
if (probe_kernel_address((unsigned short *)ip, ud2))
return 0;
return ud2 == 0x0b0f;
@ -382,10 +382,10 @@ void die(const char * str, struct pt_regs * regs, long err)
raw_local_irq_save(flags);
if (++die.lock_owner_depth < 3) {
unsigned long esp;
unsigned long sp;
unsigned short ss;
report_bug(regs->eip, regs);
report_bug(regs->ip, regs);
printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff,
++die_counter);
@ -405,15 +405,15 @@ void die(const char * str, struct pt_regs * regs, long err)
NOTIFY_STOP) {
show_registers(regs);
/* Executive summary in case the oops scrolled away */
esp = (unsigned long) (&regs->esp);
sp = (unsigned long) (&regs->sp);
savesegment(ss, ss);
if (user_mode(regs)) {
esp = regs->esp;
ss = regs->xss & 0xffff;
sp = regs->sp;
ss = regs->ss & 0xffff;
}
printk(KERN_EMERG "EIP: [<%08lx>] ", regs->eip);
print_symbol("%s", regs->eip);
printk(" SS:ESP %04x:%08lx\n", ss, esp);
printk(KERN_EMERG "EIP: [<%08lx>] ", regs->ip);
print_symbol("%s", regs->ip);
printk(" SS:ESP %04x:%08lx\n", ss, sp);
}
else
regs = NULL;
@ -454,7 +454,7 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, int vm86,
{
struct task_struct *tsk = current;
if (regs->eflags & VM_MASK) {
if (regs->flags & VM_MASK) {
if (vm86)
goto vm86_trap;
goto trap_signal;
@ -548,13 +548,13 @@ fastcall void do_##name(struct pt_regs * regs, long error_code) \
do_trap(trapnr, signr, str, 1, regs, error_code, &info); \
}
DO_VM86_ERROR_INFO( 0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->eip)
DO_VM86_ERROR_INFO( 0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->ip)
#ifndef CONFIG_KPROBES
DO_VM86_ERROR( 3, SIGTRAP, "int3", int3)
#endif
DO_VM86_ERROR( 4, SIGSEGV, "overflow", overflow)
DO_VM86_ERROR( 5, SIGSEGV, "bounds", bounds)
DO_ERROR_INFO( 6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->eip, 0)
DO_ERROR_INFO( 6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip, 0)
DO_ERROR( 9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun)
DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
DO_ERROR(11, SIGBUS, "segment not present", segment_not_present)
@ -596,7 +596,7 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs,
}
put_cpu();
if (regs->eflags & VM_MASK)
if (regs->flags & VM_MASK)
goto gp_in_vm86;
if (!user_mode(regs))
@ -607,9 +607,9 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs,
if (show_unhandled_signals && unhandled_signal(current, SIGSEGV) &&
printk_ratelimit())
printk(KERN_INFO
"%s[%d] general protection eip:%lx esp:%lx error:%lx\n",
"%s[%d] general protection ip:%lx sp:%lx error:%lx\n",
current->comm, task_pid_nr(current),
regs->eip, regs->esp, error_code);
regs->ip, regs->sp, error_code);
force_sig(SIGSEGV, current);
return;
@ -705,8 +705,8 @@ void __kprobes die_nmi(struct pt_regs *regs, const char *msg)
*/
bust_spinlocks(1);
printk(KERN_EMERG "%s", msg);
printk(" on CPU%d, eip %08lx, registers:\n",
smp_processor_id(), regs->eip);
printk(" on CPU%d, ip %08lx, registers:\n",
smp_processor_id(), regs->ip);
show_registers(regs);
console_silent();
spin_unlock(&nmi_print_lock);
@ -847,7 +847,7 @@ fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code)
SIGTRAP) == NOTIFY_STOP)
return;
/* It's safe to allow irq's after DR6 has been saved */
if (regs->eflags & X86_EFLAGS_IF)
if (regs->flags & X86_EFLAGS_IF)
local_irq_enable();
/* Mask out spurious debug traps due to lazy DR7 setting */
@ -856,7 +856,7 @@ fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code)
goto clear_dr7;
}
if (regs->eflags & VM_MASK)
if (regs->flags & VM_MASK)
goto debug_vm86;
/* Save debug status register where ptrace can see it */
@ -892,7 +892,7 @@ debug_vm86:
clear_TF_reenable:
set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
return;
}
@ -901,7 +901,7 @@ clear_TF_reenable:
* the correct behaviour even in the presence of the asynchronous
* IRQ13 behaviour
*/
void math_error(void __user *eip)
void math_error(void __user *ip)
{
struct task_struct * task;
siginfo_t info;
@ -917,7 +917,7 @@ void math_error(void __user *eip)
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = __SI_FAULT;
info.si_addr = eip;
info.si_addr = ip;
/*
* (~cwd & swd) will mask out exceptions that are not set to unmasked
* status. 0x3f is the exception bits in these regs, 0x200 is the
@ -963,10 +963,10 @@ void math_error(void __user *eip)
fastcall void do_coprocessor_error(struct pt_regs * regs, long error_code)
{
ignore_fpu_irq = 1;
math_error((void __user *)regs->eip);
math_error((void __user *)regs->ip);
}
static void simd_math_error(void __user *eip)
static void simd_math_error(void __user *ip)
{
struct task_struct * task;
siginfo_t info;
@ -982,7 +982,7 @@ static void simd_math_error(void __user *eip)
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = __SI_FAULT;
info.si_addr = eip;
info.si_addr = ip;
/*
* The SIMD FPU exceptions are handled a little differently, as there
* is only a single status/control register. Thus, to determine which
@ -1020,13 +1020,13 @@ fastcall void do_simd_coprocessor_error(struct pt_regs * regs,
if (cpu_has_xmm) {
/* Handle SIMD FPU exceptions on PIII+ processors. */
ignore_fpu_irq = 1;
simd_math_error((void __user *)regs->eip);
simd_math_error((void __user *)regs->ip);
} else {
/*
* Handle strange cache flush from user space exception
* in all other cases. This is undocumented behaviour.
*/
if (regs->eflags & VM_MASK) {
if (regs->flags & VM_MASK) {
handle_vm86_fault((struct kernel_vm86_regs *)regs,
error_code);
return;

84
arch/x86/kernel/traps_64.c
View File

@ -76,20 +76,20 @@ asmlinkage void spurious_interrupt_bug(void);
static inline void conditional_sti(struct pt_regs *regs)
{
if (regs->eflags & X86_EFLAGS_IF)
if (regs->flags & X86_EFLAGS_IF)
local_irq_enable();
}
static inline void preempt_conditional_sti(struct pt_regs *regs)
{
preempt_disable();
if (regs->eflags & X86_EFLAGS_IF)
if (regs->flags & X86_EFLAGS_IF)
local_irq_enable();
}
static inline void preempt_conditional_cli(struct pt_regs *regs)
{
if (regs->eflags & X86_EFLAGS_IF)
if (regs->flags & X86_EFLAGS_IF)
local_irq_disable();
/* Make sure to not schedule here because we could be running
on an exception stack. */
@ -353,7 +353,7 @@ show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack)
}
static void
_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp)
_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp)
{
unsigned long *stack;
int i;
@ -364,14 +364,14 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp)
// debugging aid: "show_stack(NULL, NULL);" prints the
// back trace for this cpu.
if (rsp == NULL) {
if (sp == NULL) {
if (tsk)
rsp = (unsigned long *)tsk->thread.rsp;
sp = (unsigned long *)tsk->thread.rsp;
else
rsp = (unsigned long *)&rsp;
sp = (unsigned long *)&sp;
}
stack = rsp;
stack = sp;
for(i=0; i < kstack_depth_to_print; i++) {
if (stack >= irqstack && stack <= irqstack_end) {
if (stack == irqstack_end) {
@ -387,12 +387,12 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp)
printk(" %016lx", *stack++);
touch_nmi_watchdog();
}
show_trace(tsk, regs, rsp);
show_trace(tsk, regs, sp);
}
void show_stack(struct task_struct *tsk, unsigned long * rsp)
void show_stack(struct task_struct *tsk, unsigned long * sp)
{
_show_stack(tsk, NULL, rsp);
_show_stack(tsk, NULL, sp);
}
/*
@ -416,11 +416,11 @@ void show_registers(struct pt_regs *regs)
{
int i;
int in_kernel = !user_mode(regs);
unsigned long rsp;
unsigned long sp;
const int cpu = smp_processor_id();
struct task_struct *cur = cpu_pda(cpu)->pcurrent;
rsp = regs->rsp;
sp = regs->sp;
printk("CPU %d ", cpu);
__show_regs(regs);
printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
@ -432,15 +432,15 @@ void show_registers(struct pt_regs *regs)
*/
if (in_kernel) {
printk("Stack: ");
_show_stack(NULL, regs, (unsigned long*)rsp);
_show_stack(NULL, regs, (unsigned long*)sp);
printk("\nCode: ");
if (regs->rip < PAGE_OFFSET)
if (regs->ip < PAGE_OFFSET)
goto bad;
for (i=0; i<20; i++) {
unsigned char c;
if (__get_user(c, &((unsigned char*)regs->rip)[i])) {
if (__get_user(c, &((unsigned char*)regs->ip)[i])) {
bad:
printk(" Bad RIP value.");
break;
@ -451,11 +451,11 @@ bad:
printk("\n");
}
int is_valid_bugaddr(unsigned long rip)
int is_valid_bugaddr(unsigned long ip)
{
unsigned short ud2;
if (__copy_from_user(&ud2, (const void __user *) rip, sizeof(ud2)))
if (__copy_from_user(&ud2, (const void __user *) ip, sizeof(ud2)))
return 0;
return ud2 == 0x0b0f;
@ -521,8 +521,8 @@ void __kprobes __die(const char * str, struct pt_regs * regs, long err)
add_taint(TAINT_DIE);
/* Executive summary in case the oops scrolled away */
printk(KERN_ALERT "RIP ");
printk_address(regs->rip);
printk(" RSP <%016lx>\n", regs->rsp);
printk_address(regs->ip);
printk(" RSP <%016lx>\n", regs->sp);
if (kexec_should_crash(current))
crash_kexec(regs);
}
@ -532,7 +532,7 @@ void die(const char * str, struct pt_regs * regs, long err)
unsigned long flags = oops_begin();
if (!user_mode(regs))
report_bug(regs->rip, regs);
report_bug(regs->ip, regs);
__die(str, regs, err);
oops_end(flags);
@ -582,9 +582,9 @@ static void __kprobes do_trap(int trapnr, int signr, char *str,
if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
printk_ratelimit())
printk(KERN_INFO
"%s[%d] trap %s rip:%lx rsp:%lx error:%lx\n",
"%s[%d] trap %s ip:%lx sp:%lx error:%lx\n",
tsk->comm, tsk->pid, str,
regs->rip, regs->rsp, error_code);
regs->ip, regs->sp, error_code);
if (info)
force_sig_info(signr, info, tsk);
@ -597,9 +597,9 @@ static void __kprobes do_trap(int trapnr, int signr, char *str,
/* kernel trap */
{
const struct exception_table_entry *fixup;
fixup = search_exception_tables(regs->rip);
fixup = search_exception_tables(regs->ip);
if (fixup)
regs->rip = fixup->fixup;
regs->ip = fixup->fixup;
else {
tsk->thread.error_code = error_code;
tsk->thread.trap_no = trapnr;
@ -635,10 +635,10 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
do_trap(trapnr, signr, str, regs, error_code, &info); \
}
DO_ERROR_INFO( 0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->rip)
DO_ERROR_INFO( 0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->ip)
DO_ERROR( 4, SIGSEGV, "overflow", overflow)
DO_ERROR( 5, SIGSEGV, "bounds", bounds)
DO_ERROR_INFO( 6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->rip)
DO_ERROR_INFO( 6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip)
DO_ERROR( 7, SIGSEGV, "device not available", device_not_available)
DO_ERROR( 9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun)
DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
@ -688,9 +688,9 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs,
if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
printk_ratelimit())
printk(KERN_INFO
"%s[%d] general protection rip:%lx rsp:%lx error:%lx\n",
"%s[%d] general protection ip:%lx sp:%lx error:%lx\n",
tsk->comm, tsk->pid,
regs->rip, regs->rsp, error_code);
regs->ip, regs->sp, error_code);
force_sig(SIGSEGV, tsk);
return;
@ -699,9 +699,9 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs,
/* kernel gp */
{
const struct exception_table_entry *fixup;
fixup = search_exception_tables(regs->rip);
fixup = search_exception_tables(regs->ip);
if (fixup) {
regs->rip = fixup->fixup;
regs->ip = fixup->fixup;
return;
}
@ -824,15 +824,15 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs)
{
struct pt_regs *regs = eregs;
/* Did already sync */
if (eregs == (struct pt_regs *)eregs->rsp)
if (eregs == (struct pt_regs *)eregs->sp)
;
/* Exception from user space */
else if (user_mode(eregs))
regs = task_pt_regs(current);
/* Exception from kernel and interrupts are enabled. Move to
kernel process stack. */
else if (eregs->eflags & X86_EFLAGS_IF)
regs = (struct pt_regs *)(eregs->rsp -= sizeof(struct pt_regs));
else if (eregs->flags & X86_EFLAGS_IF)
regs = (struct pt_regs *)(eregs->sp -= sizeof(struct pt_regs));
if (eregs != regs)
*regs = *eregs;
return regs;
@ -887,7 +887,7 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
info.si_signo = SIGTRAP;
info.si_errno = 0;
info.si_code = TRAP_BRKPT;
info.si_addr = user_mode(regs) ? (void __user *)regs->rip : NULL;
info.si_addr = user_mode(regs) ? (void __user *)regs->ip : NULL;
force_sig_info(SIGTRAP, &info, tsk);
clear_dr7:
@ -897,16 +897,16 @@ clear_dr7:
clear_TF_reenable:
set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
regs->eflags &= ~TF_MASK;
regs->flags &= ~TF_MASK;
preempt_conditional_cli(regs);
}
static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr)
{
const struct exception_table_entry *fixup;
fixup = search_exception_tables(regs->rip);
fixup = search_exception_tables(regs->ip);
if (fixup) {
regs->rip = fixup->fixup;
regs->ip = fixup->fixup;
return 1;
}
notify_die(DIE_GPF, str, regs, 0, trapnr, SIGFPE);
@ -923,7 +923,7 @@ static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr)
*/
asmlinkage void do_coprocessor_error(struct pt_regs *regs)
{
void __user *rip = (void __user *)(regs->rip);
void __user *ip = (void __user *)(regs->ip);
struct task_struct * task;
siginfo_t info;
unsigned short cwd, swd;
@ -943,7 +943,7 @@ asmlinkage void do_coprocessor_error(struct pt_regs *regs)
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = __SI_FAULT;
info.si_addr = rip;
info.si_addr = ip;
/*
* (~cwd & swd) will mask out exceptions that are not set to unmasked
* status. 0x3f is the exception bits in these regs, 0x200 is the
@ -992,7 +992,7 @@ asmlinkage void bad_intr(void)
asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs)
{
void __user *rip = (void __user *)(regs->rip);
void __user *ip = (void __user *)(regs->ip);
struct task_struct * task;
siginfo_t info;
unsigned short mxcsr;
@ -1012,7 +1012,7 @@ asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs)
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = __SI_FAULT;
info.si_addr = rip;
info.si_addr = ip;
/*
* The SIMD FPU exceptions are handled a little differently, as there
* is only a single status/control register. Thus, to determine which

94
arch/x86/kernel/vm86_32.c
View File

@ -70,10 +70,10 @@
/*
* 8- and 16-bit register defines..
*/
#define AL(regs) (((unsigned char *)&((regs)->pt.eax))[0])
#define AH(regs) (((unsigned char *)&((regs)->pt.eax))[1])
#define IP(regs) (*(unsigned short *)&((regs)->pt.eip))
#define SP(regs) (*(unsigned short *)&((regs)->pt.esp))
#define AL(regs) (((unsigned char *)&((regs)->pt.ax))[0])
#define AH(regs) (((unsigned char *)&((regs)->pt.ax))[1])
#define IP(regs) (*(unsigned short *)&((regs)->pt.ip))
#define SP(regs) (*(unsigned short *)&((regs)->pt.sp))
/*
* virtual flags (16 and 32-bit versions)
@ -93,12 +93,12 @@ static int copy_vm86_regs_to_user(struct vm86_regs __user *user,
{
int ret = 0;
/* kernel_vm86_regs is missing xgs, so copy everything up to
/* kernel_vm86_regs is missing gs, so copy everything up to
(but not including) orig_eax, and then rest including orig_eax. */
ret += copy_to_user(user, regs, offsetof(struct kernel_vm86_regs, pt.orig_eax));
ret += copy_to_user(&user->orig_eax, &regs->pt.orig_eax,
ret += copy_to_user(user, regs, offsetof(struct kernel_vm86_regs, pt.orig_ax));
ret += copy_to_user(&user->orig_eax, &regs->pt.orig_ax,
sizeof(struct kernel_vm86_regs) -
offsetof(struct kernel_vm86_regs, pt.orig_eax));
offsetof(struct kernel_vm86_regs, pt.orig_ax));
return ret;
}
@ -110,12 +110,12 @@ static int copy_vm86_regs_from_user(struct kernel_vm86_regs *regs,
{
int ret = 0;
/* copy eax-xfs inclusive */
ret += copy_from_user(regs, user, offsetof(struct kernel_vm86_regs, pt.orig_eax));
/* copy orig_eax-__gsh+extra */
ret += copy_from_user(&regs->pt.orig_eax, &user->orig_eax,
/* copy ax-fs inclusive */
ret += copy_from_user(regs, user, offsetof(struct kernel_vm86_regs, pt.orig_ax));
/* copy orig_ax-__gsh+extra */
ret += copy_from_user(&regs->pt.orig_ax, &user->orig_eax,
sizeof(struct kernel_vm86_regs) -
offsetof(struct kernel_vm86_regs, pt.orig_eax) +
offsetof(struct kernel_vm86_regs, pt.orig_ax) +
extra);
return ret;
}
@ -138,7 +138,7 @@ struct pt_regs * fastcall save_v86_state(struct kernel_vm86_regs * regs)
printk("no vm86_info: BAD\n");
do_exit(SIGSEGV);
}
set_flags(regs->pt.eflags, VEFLAGS, VIF_MASK | current->thread.v86mask);
set_flags(regs->pt.flags, VEFLAGS, VIF_MASK | current->thread.v86mask);
tmp = copy_vm86_regs_to_user(&current->thread.vm86_info->regs,regs);
tmp += put_user(current->thread.screen_bitmap,&current->thread.vm86_info->screen_bitmap);
if (tmp) {
@ -155,7 +155,7 @@ struct pt_regs * fastcall save_v86_state(struct kernel_vm86_regs * regs)
ret = KVM86->regs32;
ret->xfs = current->thread.saved_fs;
ret->fs = current->thread.saved_fs;
loadsegment(gs, current->thread.saved_gs);
return ret;
@ -197,7 +197,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
asmlinkage int sys_vm86old(struct pt_regs regs)
{
struct vm86_struct __user *v86 = (struct vm86_struct __user *)regs.ebx;
struct vm86_struct __user *v86 = (struct vm86_struct __user *)regs.bx;
struct kernel_vm86_struct info; /* declare this _on top_,
* this avoids wasting of stack space.
* This remains on the stack until we
@ -237,12 +237,12 @@ asmlinkage int sys_vm86(struct pt_regs regs)
struct vm86plus_struct __user *v86;
tsk = current;
switch (regs.ebx) {
switch (regs.bx) {
case VM86_REQUEST_IRQ:
case VM86_FREE_IRQ:
case VM86_GET_IRQ_BITS:
case VM86_GET_AND_RESET_IRQ:
ret = do_vm86_irq_handling(regs.ebx, (int)regs.ecx);
ret = do_vm86_irq_handling(regs.bx, (int)regs.cx);
goto out;
case VM86_PLUS_INSTALL_CHECK:
/* NOTE: on old vm86 stuff this will return the error
@ -258,7 +258,7 @@ asmlinkage int sys_vm86(struct pt_regs regs)
ret = -EPERM;
if (tsk->thread.saved_esp0)
goto out;
v86 = (struct vm86plus_struct __user *)regs.ecx;
v86 = (struct vm86plus_struct __user *)regs.cx;
tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
offsetof(struct kernel_vm86_struct, regs32) -
sizeof(info.regs));
@ -281,23 +281,23 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
/*
* make sure the vm86() system call doesn't try to do anything silly
*/
info->regs.pt.xds = 0;
info->regs.pt.xes = 0;
info->regs.pt.xfs = 0;
info->regs.pt.ds = 0;
info->regs.pt.es = 0;
info->regs.pt.fs = 0;
/* we are clearing gs later just before "jmp resume_userspace",
* because it is not saved/restored.
*/
/*
* The eflags register is also special: we cannot trust that the user
* The flags register is also special: we cannot trust that the user
* has set it up safely, so this makes sure interrupt etc flags are
* inherited from protected mode.
*/
VEFLAGS = info->regs.pt.eflags;
info->regs.pt.eflags &= SAFE_MASK;
info->regs.pt.eflags |= info->regs32->eflags & ~SAFE_MASK;
info->regs.pt.eflags |= VM_MASK;
VEFLAGS = info->regs.pt.flags;
info->regs.pt.flags &= SAFE_MASK;
info->regs.pt.flags |= info->regs32->flags & ~SAFE_MASK;
info->regs.pt.flags |= VM_MASK;
switch (info->cpu_type) {
case CPU_286:
@ -315,11 +315,11 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
}
/*
* Save old state, set default return value (%eax) to 0
* Save old state, set default return value (%ax) to 0
*/
info->regs32->eax = 0;
info->regs32->ax = 0;
tsk->thread.saved_esp0 = tsk->thread.esp0;
tsk->thread.saved_fs = info->regs32->xfs;
tsk->thread.saved_fs = info->regs32->fs;
savesegment(gs, tsk->thread.saved_gs);
tss = &per_cpu(init_tss, get_cpu());
@ -352,7 +352,7 @@ static inline void return_to_32bit(struct kernel_vm86_regs * regs16, int retval)
struct pt_regs * regs32;
regs32 = save_v86_state(regs16);
regs32->eax = retval;
regs32->ax = retval;
__asm__ __volatile__("movl %0,%%esp\n\t"
"movl %1,%%ebp\n\t"
"jmp resume_userspace"
@ -373,12 +373,12 @@ static inline void clear_IF(struct kernel_vm86_regs * regs)
static inline void clear_TF(struct kernel_vm86_regs * regs)
{
regs->pt.eflags &= ~TF_MASK;
regs->pt.flags &= ~TF_MASK;
}
static inline void clear_AC(struct kernel_vm86_regs * regs)
{
regs->pt.eflags &= ~AC_MASK;
regs->pt.flags &= ~AC_MASK;
}
/* It is correct to call set_IF(regs) from the set_vflags_*
@ -392,11 +392,11 @@ static inline void clear_AC(struct kernel_vm86_regs * regs)
* [KD]
*/
static inline void set_vflags_long(unsigned long eflags, struct kernel_vm86_regs * regs)
static inline void set_vflags_long(unsigned long flags, struct kernel_vm86_regs * regs)
{
set_flags(VEFLAGS, eflags, current->thread.v86mask);
set_flags(regs->pt.eflags, eflags, SAFE_MASK);
if (eflags & IF_MASK)
set_flags(VEFLAGS, flags, current->thread.v86mask);
set_flags(regs->pt.flags, flags, SAFE_MASK);
if (flags & IF_MASK)
set_IF(regs);
else
clear_IF(regs);
@ -405,7 +405,7 @@ static inline void set_vflags_long(unsigned long eflags, struct kernel_vm86_regs
static inline void set_vflags_short(unsigned short flags, struct kernel_vm86_regs * regs)
{
set_flags(VFLAGS, flags, current->thread.v86mask);
set_flags(regs->pt.eflags, flags, SAFE_MASK);
set_flags(regs->pt.flags, flags, SAFE_MASK);
if (flags & IF_MASK)
set_IF(regs);
else
@ -414,7 +414,7 @@ static inline void set_vflags_short(unsigned short flags, struct kernel_vm86_reg
static inline unsigned long get_vflags(struct kernel_vm86_regs * regs)
{
unsigned long flags = regs->pt.eflags & RETURN_MASK;
unsigned long flags = regs->pt.flags & RETURN_MASK;
if (VEFLAGS & VIF_MASK)
flags |= IF_MASK;
@ -518,7 +518,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
unsigned long __user *intr_ptr;
unsigned long segoffs;
if (regs->pt.xcs == BIOSSEG)
if (regs->pt.cs == BIOSSEG)
goto cannot_handle;
if (is_revectored(i, &KVM86->int_revectored))
goto cannot_handle;
@ -530,9 +530,9 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
if ((segoffs >> 16) == BIOSSEG)
goto cannot_handle;
pushw(ssp, sp, get_vflags(regs), cannot_handle);
pushw(ssp, sp, regs->pt.xcs, cannot_handle);
pushw(ssp, sp, regs->pt.cs, cannot_handle);
pushw(ssp, sp, IP(regs), cannot_handle);
regs->pt.xcs = segoffs >> 16;
regs->pt.cs = segoffs >> 16;
SP(regs) -= 6;
IP(regs) = segoffs & 0xffff;
clear_TF(regs);
@ -549,7 +549,7 @@ int handle_vm86_trap(struct kernel_vm86_regs * regs, long error_code, int trapno
if (VMPI.is_vm86pus) {
if ( (trapno==3) || (trapno==1) )
return_to_32bit(regs, VM86_TRAP + (trapno << 8));
do_int(regs, trapno, (unsigned char __user *) (regs->pt.xss << 4), SP(regs));
do_int(regs, trapno, (unsigned char __user *) (regs->pt.ss << 4), SP(regs));
return 0;
}
if (trapno !=1)
@ -585,10 +585,10 @@ void handle_vm86_fault(struct kernel_vm86_regs * regs, long error_code)
handle_vm86_trap(regs, 0, 1); \
return; } while (0)
orig_flags = *(unsigned short *)&regs->pt.eflags;
orig_flags = *(unsigned short *)&regs->pt.flags;
csp = (unsigned char __user *) (regs->pt.xcs << 4);
ssp = (unsigned char __user *) (regs->pt.xss << 4);
csp = (unsigned char __user *) (regs->pt.cs << 4);
ssp = (unsigned char __user *) (regs->pt.ss << 4);
sp = SP(regs);
ip = IP(regs);
@ -675,7 +675,7 @@ void handle_vm86_fault(struct kernel_vm86_regs * regs, long error_code)
SP(regs) += 6;
}
IP(regs) = newip;
regs->pt.xcs = newcs;
regs->pt.cs = newcs;
CHECK_IF_IN_TRAP;
if (data32) {
set_vflags_long(newflags, regs);

50
arch/x86/kernel/vmi_32.c
View File

@ -88,13 +88,13 @@ struct vmi_timer_ops vmi_timer_ops;
#define IRQ_PATCH_DISABLE 5
static inline void patch_offset(void *insnbuf,
unsigned long eip, unsigned long dest)
unsigned long ip, unsigned long dest)
{
*(unsigned long *)(insnbuf+1) = dest-eip-5;
*(unsigned long *)(insnbuf+1) = dest-ip-5;
}
static unsigned patch_internal(int call, unsigned len, void *insnbuf,
unsigned long eip)
unsigned long ip)
{
u64 reloc;
struct vmi_relocation_info *const rel = (struct vmi_relocation_info *)&reloc;
@ -103,13 +103,13 @@ static unsigned patch_internal(int call, unsigned len, void *insnbuf,
case VMI_RELOCATION_CALL_REL:
BUG_ON(len < 5);
*(char *)insnbuf = MNEM_CALL;
patch_offset(insnbuf, eip, (unsigned long)rel->eip);
patch_offset(insnbuf, ip, (unsigned long)rel->eip);
return 5;
case VMI_RELOCATION_JUMP_REL:
BUG_ON(len < 5);
*(char *)insnbuf = MNEM_JMP;
patch_offset(insnbuf, eip, (unsigned long)rel->eip);
patch_offset(insnbuf, ip, (unsigned long)rel->eip);
return 5;
case VMI_RELOCATION_NOP:
@ -131,25 +131,25 @@ static unsigned patch_internal(int call, unsigned len, void *insnbuf,
* sequence. The callee does nop padding for us.
*/
static unsigned vmi_patch(u8 type, u16 clobbers, void *insns,
unsigned long eip, unsigned len)
unsigned long ip, unsigned len)
{
switch (type) {
case PARAVIRT_PATCH(pv_irq_ops.irq_disable):
return patch_internal(VMI_CALL_DisableInterrupts, len,
insns, eip);
insns, ip);
case PARAVIRT_PATCH(pv_irq_ops.irq_enable):
return patch_internal(VMI_CALL_EnableInterrupts, len,
insns, eip);
insns, ip);
case PARAVIRT_PATCH(pv_irq_ops.restore_fl):
return patch_internal(VMI_CALL_SetInterruptMask, len,
insns, eip);
insns, ip);
case PARAVIRT_PATCH(pv_irq_ops.save_fl):
return patch_internal(VMI_CALL_GetInterruptMask, len,
insns, eip);
insns, ip);
case PARAVIRT_PATCH(pv_cpu_ops.iret):
return patch_internal(VMI_CALL_IRET, len, insns, eip);
return patch_internal(VMI_CALL_IRET, len, insns, ip);
case PARAVIRT_PATCH(pv_cpu_ops.irq_enable_syscall_ret):
return patch_internal(VMI_CALL_SYSEXIT, len, insns, eip);
return patch_internal(VMI_CALL_SYSEXIT, len, insns, ip);
default:
break;
}
@ -157,29 +157,29 @@ static unsigned vmi_patch(u8 type, u16 clobbers, void *insns,
}
/* CPUID has non-C semantics, and paravirt-ops API doesn't match hardware ISA */
static void vmi_cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
static void vmi_cpuid(unsigned int *ax, unsigned int *bx,
unsigned int *cx, unsigned int *dx)
{
int override = 0;
if (*eax == 1)
if (*ax == 1)
override = 1;
asm volatile ("call *%6"
: "=a" (*eax),
"=b" (*ebx),
"=c" (*ecx),
"=d" (*edx)
: "0" (*eax), "2" (*ecx), "r" (vmi_ops.cpuid));
: "=a" (*ax),
"=b" (*bx),
"=c" (*cx),
"=d" (*dx)
: "0" (*ax), "2" (*cx), "r" (vmi_ops.cpuid));
if (override) {
if (disable_pse)
*edx &= ~X86_FEATURE_PSE;
*dx &= ~X86_FEATURE_PSE;
if (disable_pge)
*edx &= ~X86_FEATURE_PGE;
*dx &= ~X86_FEATURE_PGE;
if (disable_sep)
*edx &= ~X86_FEATURE_SEP;
*dx &= ~X86_FEATURE_SEP;
if (disable_tsc)
*edx &= ~X86_FEATURE_TSC;
*dx &= ~X86_FEATURE_TSC;
if (disable_mtrr)
*edx &= ~X86_FEATURE_MTRR;
*dx &= ~X86_FEATURE_MTRR;
}
}

2
arch/x86/kernel/vsyscall_64.c
View File

@ -43,7 +43,7 @@
#include <asm/vgtod.h>
#define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr)))
#define __syscall_clobber "r11","rcx","memory"
#define __syscall_clobber "r11","cx","memory"
#define __pa_vsymbol(x) \
({unsigned long v; \
extern char __vsyscall_0; \

22
arch/x86/lguest/boot.c
View File

@ -175,8 +175,8 @@ static void lguest_leave_lazy_mode(void)
* check there when it wants to deliver an interrupt.
*/
/* save_flags() is expected to return the processor state (ie. "eflags"). The
* eflags word contains all kind of stuff, but in practice Linux only cares
/* save_flags() is expected to return the processor state (ie. "flags"). The
* flags word contains all kind of stuff, but in practice Linux only cares
* about the interrupt flag. Our "save_flags()" just returns that. */
static unsigned long save_fl(void)
{
@ -323,30 +323,30 @@ static void lguest_load_tr_desc(void)
* anyone (including userspace) can just use the raw "cpuid" instruction and
* the Host won't even notice since it isn't privileged. So we try not to get
* too worked up about it. */
static void lguest_cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
static void lguest_cpuid(unsigned int *ax, unsigned int *bx,
unsigned int *cx, unsigned int *dx)
{
int function = *eax;
int function = *ax;
native_cpuid(eax, ebx, ecx, edx);
native_cpuid(ax, bx, cx, dx);
switch (function) {
case 1: /* Basic feature request. */
/* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */
*ecx &= 0x00002201;
*cx &= 0x00002201;
/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, FPU. */
*edx &= 0x07808101;
*dx &= 0x07808101;
/* The Host can do a nice optimization if it knows that the
* kernel mappings (addresses above 0xC0000000 or whatever
* PAGE_OFFSET is set to) haven't changed. But Linux calls
* flush_tlb_user() for both user and kernel mappings unless
* the Page Global Enable (PGE) feature bit is set. */
*edx |= 0x00002000;
*dx |= 0x00002000;
break;
case 0x80000000:
/* Futureproof this a little: if they ask how much extended
* processor information there is, limit it to known fields. */
if (*eax > 0x80000008)
*eax = 0x80000008;
if (*ax > 0x80000008)
*ax = 0x80000008;
break;
}
}

12
arch/x86/mach-voyager/voyager_smp.c
View File

@ -526,7 +526,7 @@ static void __init do_boot_cpu(__u8 cpu)
* initial kernel stack. We need to alter this to give the
* booting CPU a new stack (taken from its idle process) */
extern struct {
__u8 *esp;
__u8 *sp;
unsigned short ss;
} stack_start;
/* This is the format of the CPI IDT gate (in real mode) which
@ -555,9 +555,9 @@ static void __init do_boot_cpu(__u8 cpu)
idle = fork_idle(cpu);
if (IS_ERR(idle))
panic("failed fork for CPU%d", cpu);
idle->thread.eip = (unsigned long)start_secondary;
idle->thread.ip = (unsigned long)start_secondary;
/* init_tasks (in sched.c) is indexed logically */
stack_start.esp = (void *)idle->thread.esp;
stack_start.sp = (void *)idle->thread.sp;
init_gdt(cpu);
per_cpu(current_task, cpu) = idle;
@ -567,7 +567,7 @@ static void __init do_boot_cpu(__u8 cpu)
/* Note: Don't modify initial ss override */
VDEBUG(("VOYAGER SMP: Booting CPU%d at 0x%lx[%x:%x], stack %p\n", cpu,
(unsigned long)hijack_source.val, hijack_source.idt.Segment,
hijack_source.idt.Offset, stack_start.esp));
hijack_source.idt.Offset, stack_start.sp));
/* init lowmem identity mapping */
clone_pgd_range(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS,
@ -745,8 +745,8 @@ void __init initialize_secondary(void)
*/
asm volatile ("movl %0,%%esp\n\t"
"jmp *%1"::"r" (current->thread.esp),
"r"(current->thread.eip));
"jmp *%1"::"r" (current->thread.sp),
"r"(current->thread.ip));
}
/* handle a Voyager SYS_INT -- If we don't, the base board will

6
arch/x86/mm/extable_32.c
View File

@ -11,7 +11,7 @@ int fixup_exception(struct pt_regs *regs)
const struct exception_table_entry *fixup;
#ifdef CONFIG_PNPBIOS
if (unlikely(SEGMENT_IS_PNP_CODE(regs->xcs)))
if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs)))
{
extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
extern u32 pnp_bios_is_utter_crap;
@ -25,9 +25,9 @@ int fixup_exception(struct pt_regs *regs)
}
#endif
fixup = search_exception_tables(regs->eip);
fixup = search_exception_tables(regs->ip);
if (fixup) {
regs->eip = fixup->fixup;
regs->ip = fixup->fixup;
return 1;
}

38
arch/x86/mm/fault_32.c
View File

@ -72,15 +72,15 @@ static inline int notify_page_fault(struct pt_regs *regs)
static inline unsigned long get_segment_eip(struct pt_regs *regs,
unsigned long *eip_limit)
{
unsigned long eip = regs->eip;
unsigned seg = regs->xcs & 0xffff;
unsigned long ip = regs->ip;
unsigned seg = regs->cs & 0xffff;
u32 seg_ar, seg_limit, base, *desc;
/* Unlikely, but must come before segment checks. */
if (unlikely(regs->eflags & VM_MASK)) {
if (unlikely(regs->flags & VM_MASK)) {
base = seg << 4;
*eip_limit = base + 0xffff;
return base + (eip & 0xffff);
return base + (ip & 0xffff);
}
/* The standard kernel/user address space limit. */
@ -88,16 +88,16 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
/* By far the most common cases. */
if (likely(SEGMENT_IS_FLAT_CODE(seg)))
return eip;
return ip;
/* Check the segment exists, is within the current LDT/GDT size,
that kernel/user (ring 0..3) has the appropriate privilege,
that it's a code segment, and get the limit. */
__asm__ ("larl %3,%0; lsll %3,%1"
: "=&r" (seg_ar), "=r" (seg_limit) : "0" (0), "rm" (seg));
if ((~seg_ar & 0x9800) || eip > seg_limit) {
if ((~seg_ar & 0x9800) || ip > seg_limit) {
*eip_limit = 0;
return 1; /* So that returned eip > *eip_limit. */
return 1; /* So that returned ip > *eip_limit. */
}
/* Get the GDT/LDT descriptor base.
@ -127,7 +127,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
seg_limit += base;
if (seg_limit < *eip_limit && seg_limit >= base)
*eip_limit = seg_limit;
return eip + base;
return ip + base;
}
/*
@ -345,7 +345,7 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs,
/* It's safe to allow irq's after cr2 has been saved and the vmalloc
fault has been handled. */
if (regs->eflags & (X86_EFLAGS_IF|VM_MASK))
if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
local_irq_enable();
mm = tsk->mm;
@ -374,7 +374,7 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs,
*/
if (!down_read_trylock(&mm->mmap_sem)) {
if ((error_code & 4) == 0 &&
!search_exception_tables(regs->eip))
!search_exception_tables(regs->ip))
goto bad_area_nosemaphore;
down_read(&mm->mmap_sem);
}
@ -388,12 +388,12 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs,
goto bad_area;
if (error_code & 4) {
/*
* Accessing the stack below %esp is always a bug.
* Accessing the stack below %sp is always a bug.
* The large cushion allows instructions like enter
* and pusha to work. ("enter $65535,$31" pushes
* 32 pointers and then decrements %esp by 65535.)
* 32 pointers and then decrements %sp by 65535.)
*/
if (address + 65536 + 32 * sizeof(unsigned long) < regs->esp)
if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
goto bad_area;
}
if (expand_stack(vma, address))
@ -442,7 +442,7 @@ good_area:
/*
* Did it hit the DOS screen memory VA from vm86 mode?
*/
if (regs->eflags & VM_MASK) {
if (regs->flags & VM_MASK) {
unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
if (bit < 32)
tsk->thread.screen_bitmap |= 1 << bit;
@ -474,11 +474,11 @@ bad_area_nosemaphore:
if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
printk_ratelimit()) {
printk("%s%s[%d]: segfault at %08lx eip %08lx "
"esp %08lx error %lx\n",
printk("%s%s[%d]: segfault at %08lx ip %08lx "
"sp %08lx error %lx\n",
task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
tsk->comm, task_pid_nr(tsk), address, regs->eip,
regs->esp, error_code);
tsk->comm, task_pid_nr(tsk), address, regs->ip,
regs->sp, error_code);
}
tsk->thread.cr2 = address;
/* Kernel addresses are always protection faults */
@ -544,7 +544,7 @@ no_context:
printk(KERN_ALERT "BUG: unable to handle kernel paging"
" request");
printk(" at virtual address %08lx\n",address);
printk(KERN_ALERT "printing eip: %08lx ", regs->eip);
printk(KERN_ALERT "printing ip: %08lx ", regs->ip);
page = read_cr3();
page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT];

22
arch/x86/mm/fault_64.c
View File

@ -198,7 +198,7 @@ KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
static int is_errata93(struct pt_regs *regs, unsigned long address)
{
static int warned;
if (address != regs->rip)
if (address != regs->ip)
return 0;
if ((address >> 32) != 0)
return 0;
@ -209,7 +209,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
printk(errata93_warning);
warned = 1;
}
regs->rip = address;
regs->ip = address;
return 1;
}
return 0;
@ -355,7 +355,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
if (notify_page_fault(regs))
return;
if (likely(regs->eflags & X86_EFLAGS_IF))
if (likely(regs->flags & X86_EFLAGS_IF))
local_irq_enable();
if (unlikely(error_code & PF_RSVD))
@ -393,7 +393,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
*/
if (!down_read_trylock(&mm->mmap_sem)) {
if ((error_code & PF_USER) == 0 &&
!search_exception_tables(regs->rip))
!search_exception_tables(regs->ip))
goto bad_area_nosemaphore;
down_read(&mm->mmap_sem);
}
@ -409,7 +409,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
/* Allow userspace just enough access below the stack pointer
* to let the 'enter' instruction work.
*/
if (address + 65536 + 32 * sizeof(unsigned long) < regs->rsp)
if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
goto bad_area;
}
if (expand_stack(vma, address))
@ -488,10 +488,10 @@ bad_area_nosemaphore:
if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
printk_ratelimit()) {
printk(
"%s%s[%d]: segfault at %lx rip %lx rsp %lx error %lx\n",
"%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx\n",
tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
tsk->comm, tsk->pid, address, regs->rip,
regs->rsp, error_code);
tsk->comm, tsk->pid, address, regs->ip,
regs->sp, error_code);
}
tsk->thread.cr2 = address;
@ -509,9 +509,9 @@ bad_area_nosemaphore:
no_context:
/* Are we prepared to handle this kernel fault? */
fixup = search_exception_tables(regs->rip);
fixup = search_exception_tables(regs->ip);
if (fixup) {
regs->rip = fixup->fixup;
regs->ip = fixup->fixup;
return;
}
@ -537,7 +537,7 @@ no_context:
else
printk(KERN_ALERT "Unable to handle kernel paging request");
printk(" at %016lx RIP: \n" KERN_ALERT,address);
printk_address(regs->rip);
printk_address(regs->ip);
dump_pagetable(address);
tsk->thread.cr2 = address;
tsk->thread.trap_no = 14;

6
arch/x86/oprofile/backtrace.c
View File

@ -48,7 +48,7 @@ static struct stacktrace_ops backtrace_ops = {
};
struct frame_head {
struct frame_head *ebp;
struct frame_head *bp;
unsigned long ret;
} __attribute__((packed));
@ -67,10 +67,10 @@ dump_user_backtrace(struct frame_head * head)
/* frame pointers should strictly progress back up the stack
* (towards higher addresses) */
if (head >= bufhead[0].ebp)
if (head >= bufhead[0].bp)
return NULL;
return bufhead[0].ebp;
return bufhead[0].bp;
}
void

18
arch/x86/xen/enlighten.c
View File

@ -141,8 +141,8 @@ static void __init xen_banner(void)
printk(KERN_INFO "Hypervisor signature: %s\n", xen_start_info->magic);
}
static void xen_cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
static void xen_cpuid(unsigned int *ax, unsigned int *bx,
unsigned int *cx, unsigned int *dx)
{
unsigned maskedx = ~0;
@ -150,18 +150,18 @@ static void xen_cpuid(unsigned int *eax, unsigned int *ebx,
* Mask out inconvenient features, to try and disable as many
* unsupported kernel subsystems as possible.
*/
if (*eax == 1)
if (*ax == 1)
maskedx = ~((1 << X86_FEATURE_APIC) | /* disable APIC */
(1 << X86_FEATURE_ACPI) | /* disable ACPI */
(1 << X86_FEATURE_ACC)); /* thermal monitoring */
asm(XEN_EMULATE_PREFIX "cpuid"
: "=a" (*eax),
"=b" (*ebx),
"=c" (*ecx),
"=d" (*edx)
: "0" (*eax), "2" (*ecx));
*edx &= maskedx;
: "=a" (*ax),
"=b" (*bx),
"=c" (*cx),
"=d" (*dx)
: "0" (*ax), "2" (*cx));
*dx &= maskedx;
}
static void xen_set_debugreg(int reg, unsigned long val)

2
arch/x86/xen/events.c
View File

@ -487,7 +487,7 @@ fastcall void xen_evtchn_do_upcall(struct pt_regs *regs)
int irq = evtchn_to_irq[port];
if (irq != -1) {
regs->orig_eax = ~irq;
regs->orig_ax = ~irq;
do_IRQ(regs);
}
}

2
include/asm-x86/compat.h
View File

@ -207,7 +207,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
static __inline__ void __user *compat_alloc_user_space(long len)
{
struct pt_regs *regs = task_pt_regs(current);
return (void __user *)regs->rsp - len;
return (void __user *)regs->sp - len;
}
static inline int is_compat_task(void)

66
include/asm-x86/elf.h
View File

@ -99,32 +99,32 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
just to make things more deterministic.
*/
#define ELF_PLAT_INIT(_r, load_addr) do { \
_r->ebx = 0; _r->ecx = 0; _r->edx = 0; \
_r->esi = 0; _r->edi = 0; _r->ebp = 0; \
_r->eax = 0; \
_r->bx = 0; _r->cx = 0; _r->dx = 0; \
_r->si = 0; _r->di = 0; _r->bp = 0; \
_r->ax = 0; \
} while (0)
/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
now struct_user_regs, they are different) */
#define ELF_CORE_COPY_REGS(pr_reg, regs) \
pr_reg[0] = regs->ebx; \
pr_reg[1] = regs->ecx; \
pr_reg[2] = regs->edx; \
pr_reg[3] = regs->esi; \
pr_reg[4] = regs->edi; \
pr_reg[5] = regs->ebp; \
pr_reg[6] = regs->eax; \
pr_reg[7] = regs->xds & 0xffff; \
pr_reg[8] = regs->xes & 0xffff; \
pr_reg[9] = regs->xfs & 0xffff; \
pr_reg[0] = regs->bx; \
pr_reg[1] = regs->cx; \
pr_reg[2] = regs->dx; \
pr_reg[3] = regs->si; \
pr_reg[4] = regs->di; \
pr_reg[5] = regs->bp; \
pr_reg[6] = regs->ax; \
pr_reg[7] = regs->ds & 0xffff; \
pr_reg[8] = regs->es & 0xffff; \
pr_reg[9] = regs->fs & 0xffff; \
savesegment(gs,pr_reg[10]); \
pr_reg[11] = regs->orig_eax; \
pr_reg[12] = regs->eip; \
pr_reg[13] = regs->xcs & 0xffff; \
pr_reg[14] = regs->eflags; \
pr_reg[15] = regs->esp; \
pr_reg[16] = regs->xss & 0xffff;
pr_reg[11] = regs->orig_ax; \
pr_reg[12] = regs->ip; \
pr_reg[13] = regs->cs & 0xffff; \
pr_reg[14] = regs->flags; \
pr_reg[15] = regs->sp; \
pr_reg[16] = regs->ss & 0xffff;
#define ELF_PLATFORM (utsname()->machine)
#define set_personality_64bit() do { } while (0)
@ -142,9 +142,9 @@ extern unsigned int vdso_enabled;
#define ELF_PLAT_INIT(_r, load_addr) do { \
struct task_struct *cur = current; \
(_r)->rbx = 0; (_r)->rcx = 0; (_r)->rdx = 0; \
(_r)->rsi = 0; (_r)->rdi = 0; (_r)->rbp = 0; \
(_r)->rax = 0; \
(_r)->bx = 0; (_r)->cx = 0; (_r)->dx = 0; \
(_r)->si = 0; (_r)->di = 0; (_r)->bp = 0; \
(_r)->ax = 0; \
(_r)->r8 = 0; \
(_r)->r9 = 0; \
(_r)->r10 = 0; \
@ -169,22 +169,22 @@ extern unsigned int vdso_enabled;
(pr_reg)[1] = (regs)->r14; \
(pr_reg)[2] = (regs)->r13; \
(pr_reg)[3] = (regs)->r12; \
(pr_reg)[4] = (regs)->rbp; \
(pr_reg)[5] = (regs)->rbx; \
(pr_reg)[4] = (regs)->bp; \
(pr_reg)[5] = (regs)->bx; \
(pr_reg)[6] = (regs)->r11; \
(pr_reg)[7] = (regs)->r10; \
(pr_reg)[8] = (regs)->r9; \
(pr_reg)[9] = (regs)->r8; \
(pr_reg)[10] = (regs)->rax; \
(pr_reg)[11] = (regs)->rcx; \
(pr_reg)[12] = (regs)->rdx; \
(pr_reg)[13] = (regs)->rsi; \
(pr_reg)[14] = (regs)->rdi; \
(pr_reg)[15] = (regs)->orig_rax; \
(pr_reg)[16] = (regs)->rip; \
(pr_reg)[10] = (regs)->ax; \
(pr_reg)[11] = (regs)->cx; \
(pr_reg)[12] = (regs)->dx; \
(pr_reg)[13] = (regs)->si; \
(pr_reg)[14] = (regs)->di; \
(pr_reg)[15] = (regs)->orig_ax; \
(pr_reg)[16] = (regs)->ip; \
(pr_reg)[17] = (regs)->cs; \
(pr_reg)[18] = (regs)->eflags; \
(pr_reg)[19] = (regs)->rsp; \
(pr_reg)[18] = (regs)->flags; \
(pr_reg)[19] = (regs)->sp; \
(pr_reg)[20] = (regs)->ss; \
(pr_reg)[21] = current->thread.fs; \
(pr_reg)[22] = current->thread.gs; \

36
include/asm-x86/kexec_32.h
View File

@ -45,7 +45,7 @@
/* We can also handle crash dumps from 64 bit kernel. */
#define vmcore_elf_check_arch_cross(x) ((x)->e_machine == EM_X86_64)
/* CPU does not save ss and esp on stack if execution is already
/* CPU does not save ss and sp on stack if execution is already
* running in kernel mode at the time of NMI occurrence. This code
* fixes it.
*/
@ -53,16 +53,16 @@ static inline void crash_fixup_ss_esp(struct pt_regs *newregs,
struct pt_regs *oldregs)
{
memcpy(newregs, oldregs, sizeof(*newregs));
newregs->esp = (unsigned long)&(oldregs->esp);
newregs->sp = (unsigned long)&(oldregs->sp);
__asm__ __volatile__(
"xorl %%eax, %%eax\n\t"
"movw %%ss, %%ax\n\t"
:"=a"(newregs->xss));
:"=a"(newregs->ss));
}
/*
* This function is responsible for capturing register states if coming
* via panic otherwise just fix up the ss and esp if coming via kernel
* via panic otherwise just fix up the ss and sp if coming via kernel
* mode exception.
*/
static inline void crash_setup_regs(struct pt_regs *newregs,
@ -71,21 +71,21 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
if (oldregs)
crash_fixup_ss_esp(newregs, oldregs);
else {
__asm__ __volatile__("movl %%ebx,%0" : "=m"(newregs->ebx));
__asm__ __volatile__("movl %%ecx,%0" : "=m"(newregs->ecx));
__asm__ __volatile__("movl %%edx,%0" : "=m"(newregs->edx));
__asm__ __volatile__("movl %%esi,%0" : "=m"(newregs->esi));
__asm__ __volatile__("movl %%edi,%0" : "=m"(newregs->edi));
__asm__ __volatile__("movl %%ebp,%0" : "=m"(newregs->ebp));
__asm__ __volatile__("movl %%eax,%0" : "=m"(newregs->eax));
__asm__ __volatile__("movl %%esp,%0" : "=m"(newregs->esp));
__asm__ __volatile__("movw %%ss, %%ax;" :"=a"(newregs->xss));
__asm__ __volatile__("movw %%cs, %%ax;" :"=a"(newregs->xcs));
__asm__ __volatile__("movw %%ds, %%ax;" :"=a"(newregs->xds));
__asm__ __volatile__("movw %%es, %%ax;" :"=a"(newregs->xes));
__asm__ __volatile__("pushfl; popl %0" :"=m"(newregs->eflags));
__asm__ __volatile__("movl %%ebx,%0" : "=m"(newregs->bx));
__asm__ __volatile__("movl %%ecx,%0" : "=m"(newregs->cx));
__asm__ __volatile__("movl %%edx,%0" : "=m"(newregs->dx));
__asm__ __volatile__("movl %%esi,%0" : "=m"(newregs->si));
__asm__ __volatile__("movl %%edi,%0" : "=m"(newregs->di));
__asm__ __volatile__("movl %%ebp,%0" : "=m"(newregs->bp));
__asm__ __volatile__("movl %%eax,%0" : "=m"(newregs->ax));
__asm__ __volatile__("movl %%esp,%0" : "=m"(newregs->sp));
__asm__ __volatile__("movl %%ss, %%eax;" :"=a"(newregs->ss));
__asm__ __volatile__("movl %%cs, %%eax;" :"=a"(newregs->cs));
__asm__ __volatile__("movl %%ds, %%eax;" :"=a"(newregs->ds));
__asm__ __volatile__("movl %%es, %%eax;" :"=a"(newregs->es));
__asm__ __volatile__("pushfl; popl %0" :"=m"(newregs->flags));
newregs->eip = (unsigned long)current_text_addr();
newregs->ip = (unsigned long)current_text_addr();
}
}
asmlinkage NORET_TYPE void

20
include/asm-x86/kexec_64.h
View File

@ -60,14 +60,14 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
if (oldregs)
memcpy(newregs, oldregs, sizeof(*newregs));
else {
__asm__ __volatile__("movq %%rbx,%0" : "=m"(newregs->rbx));
__asm__ __volatile__("movq %%rcx,%0" : "=m"(newregs->rcx));
__asm__ __volatile__("movq %%rdx,%0" : "=m"(newregs->rdx));
__asm__ __volatile__("movq %%rsi,%0" : "=m"(newregs->rsi));
__asm__ __volatile__("movq %%rdi,%0" : "=m"(newregs->rdi));
__asm__ __volatile__("movq %%rbp,%0" : "=m"(newregs->rbp));
__asm__ __volatile__("movq %%rax,%0" : "=m"(newregs->rax));
__asm__ __volatile__("movq %%rsp,%0" : "=m"(newregs->rsp));
__asm__ __volatile__("movq %%rbx,%0" : "=m"(newregs->bx));
__asm__ __volatile__("movq %%rcx,%0" : "=m"(newregs->cx));
__asm__ __volatile__("movq %%rdx,%0" : "=m"(newregs->dx));
__asm__ __volatile__("movq %%rsi,%0" : "=m"(newregs->si));
__asm__ __volatile__("movq %%rdi,%0" : "=m"(newregs->di));
__asm__ __volatile__("movq %%rbp,%0" : "=m"(newregs->bp));
__asm__ __volatile__("movq %%rax,%0" : "=m"(newregs->ax));
__asm__ __volatile__("movq %%rsp,%0" : "=m"(newregs->sp));
__asm__ __volatile__("movq %%r8,%0" : "=m"(newregs->r8));
__asm__ __volatile__("movq %%r9,%0" : "=m"(newregs->r9));
__asm__ __volatile__("movq %%r10,%0" : "=m"(newregs->r10));
@ -78,9 +78,9 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
__asm__ __volatile__("movq %%r15,%0" : "=m"(newregs->r15));
__asm__ __volatile__("movl %%ss, %%eax;" :"=a"(newregs->ss));
__asm__ __volatile__("movl %%cs, %%eax;" :"=a"(newregs->cs));
__asm__ __volatile__("pushfq; popq %0" :"=m"(newregs->eflags));
__asm__ __volatile__("pushfq; popq %0" :"=m"(newregs->flags));
newregs->rip = (unsigned long)current_text_addr();
newregs->ip = (unsigned long)current_text_addr();
}
}

2
include/asm-x86/kprobes_32.h
View File

@ -84,7 +84,7 @@ struct kprobe_ctlblk {
*/
static inline void restore_interrupts(struct pt_regs *regs)
{
if (regs->eflags & IF_MASK)
if (regs->flags & IF_MASK)
local_irq_enable();
}

2
include/asm-x86/kprobes_64.h
View File

@ -77,7 +77,7 @@ struct kprobe_ctlblk {
*/
static inline void restore_interrupts(struct pt_regs *regs)
{
if (regs->eflags & IF_MASK)
if (regs->flags & IF_MASK)
local_irq_enable();
}

4
include/asm-x86/mce.h
View File

@ -13,7 +13,7 @@
#define MCG_CTL_P (1UL<<8) /* MCG_CAP register available */
#define MCG_STATUS_RIPV (1UL<<0) /* restart ip valid */
#define MCG_STATUS_EIPV (1UL<<1) /* eip points to correct instruction */
#define MCG_STATUS_EIPV (1UL<<1) /* ip points to correct instruction */
#define MCG_STATUS_MCIP (1UL<<2) /* machine check in progress */
#define MCI_STATUS_VAL (1UL<<63) /* valid error */
@ -30,7 +30,7 @@ struct mce {
__u64 misc;
__u64 addr;
__u64 mcgstatus;
__u64 rip;
__u64 ip;
__u64 tsc; /* cpu time stamp counter */
__u64 res1; /* for future extension */
__u64 res2; /* dito. */

20
include/asm-x86/processor_32.h
View File

@ -398,14 +398,14 @@ struct thread_struct {
#define start_thread(regs, new_eip, new_esp) do { \
__asm__("movl %0,%%gs": :"r" (0)); \
regs->xfs = 0; \
regs->fs = 0; \
set_fs(USER_DS); \
regs->xds = __USER_DS; \
regs->xes = __USER_DS; \
regs->xss = __USER_DS; \
regs->xcs = __USER_CS; \
regs->eip = new_eip; \
regs->esp = new_esp; \
regs->ds = __USER_DS; \
regs->es = __USER_DS; \
regs->ss = __USER_DS; \
regs->cs = __USER_CS; \
regs->ip = new_eip; \
regs->sp = new_esp; \
} while (0)
/* Forward declaration, a strange C thing */
@ -440,7 +440,7 @@ unsigned long get_wchan(struct task_struct *p);
* is accessable even if the CPU haven't stored the SS/ESP registers
* on the stack (interrupt gate does not save these registers
* when switching to the same priv ring).
* Therefore beware: accessing the xss/esp fields of the
* Therefore beware: accessing the ss/esp fields of the
* "struct pt_regs" is possible, but they may contain the
* completely wrong values.
*/
@ -451,8 +451,8 @@ unsigned long get_wchan(struct task_struct *p);
__regs__ - 1; \
})
#define KSTK_EIP(task) (task_pt_regs(task)->eip)
#define KSTK_ESP(task) (task_pt_regs(task)->esp)
#define KSTK_EIP(task) (task_pt_regs(task)->ip)
#define KSTK_ESP(task) (task_pt_regs(task)->sp)
struct microcode_header {

8
include/asm-x86/processor_64.h
View File

@ -258,12 +258,12 @@ struct thread_struct {
#define start_thread(regs,new_rip,new_rsp) do { \
asm volatile("movl %0,%%fs; movl %0,%%es; movl %0,%%ds": :"r" (0)); \
load_gs_index(0); \
(regs)->rip = (new_rip); \
(regs)->rsp = (new_rsp); \
(regs)->ip = (new_rip); \
(regs)->sp = (new_rsp); \
write_pda(oldrsp, (new_rsp)); \
(regs)->cs = __USER_CS; \
(regs)->ss = __USER_DS; \
(regs)->eflags = 0x200; \
(regs)->flags = 0x200; \
set_fs(USER_DS); \
} while(0)
@ -297,7 +297,7 @@ extern long kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
extern unsigned long get_wchan(struct task_struct *p);
#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.rsp0 - 1)
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->rip)
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ip)
#define KSTK_ESP(tsk) -1 /* sorry. doesn't work for syscall. */

80
include/asm-x86/ptrace.h
View File

@ -10,6 +10,8 @@
/* this struct defines the way the registers are stored on the
stack during a system call. */
#ifndef __KERNEL__
struct pt_regs {
long ebx;
long ecx;
@ -21,7 +23,7 @@ struct pt_regs {
int xds;
int xes;
int xfs;
/* int xgs; */
/* int gs; */
long orig_eax;
long eip;
int xcs;
@ -30,7 +32,27 @@ struct pt_regs {
int xss;
};
#ifdef __KERNEL__
#else /* __KERNEL__ */
struct pt_regs {
long bx;
long cx;
long dx;
long si;
long di;
long bp;
long ax;
int ds;
int es;
int fs;
/* int gs; */
long orig_ax;
long ip;
int cs;
long flags;
long sp;
int ss;
};
#include <asm/vm86.h>
#include <asm/segment.h>
@ -47,27 +69,30 @@ extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int erro
*/
static inline int user_mode(struct pt_regs *regs)
{
return (regs->xcs & SEGMENT_RPL_MASK) == USER_RPL;
return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
return ((regs->cs & SEGMENT_RPL_MASK) |
(regs->flags & VM_MASK)) >= USER_RPL;
}
static inline int v8086_mode(struct pt_regs *regs)
{
return (regs->eflags & VM_MASK);
return (regs->flags & VM_MASK);
}
#define instruction_pointer(regs) ((regs)->eip)
#define frame_pointer(regs) ((regs)->ebp)
#define instruction_pointer(regs) ((regs)->ip)
#define frame_pointer(regs) ((regs)->bp)
#define stack_pointer(regs) ((unsigned long)(regs))
#define regs_return_value(regs) ((regs)->eax)
#define regs_return_value(regs) ((regs)->ax)
extern unsigned long profile_pc(struct pt_regs *regs);
#endif /* __KERNEL__ */
#else /* __i386__ */
#ifndef __KERNEL__
struct pt_regs {
unsigned long r15;
unsigned long r14;
@ -96,14 +121,43 @@ struct pt_regs {
/* top of stack page */
};
#ifdef __KERNEL__
#else /* __KERNEL__ */
struct pt_regs {
unsigned long r15;
unsigned long r14;
unsigned long r13;
unsigned long r12;
unsigned long bp;
unsigned long bx;
/* arguments: non interrupts/non tracing syscalls only save upto here*/
unsigned long r11;
unsigned long r10;
unsigned long r9;
unsigned long r8;
unsigned long ax;
unsigned long cx;
unsigned long dx;
unsigned long si;
unsigned long di;
unsigned long orig_ax;
/* end of arguments */
/* cpu exception frame or undefined */
unsigned long ip;
unsigned long cs;
unsigned long flags;
unsigned long sp;
unsigned long ss;
/* top of stack page */
};
#define user_mode(regs) (!!((regs)->cs & 3))
#define user_mode_vm(regs) user_mode(regs)
#define instruction_pointer(regs) ((regs)->rip)
#define frame_pointer(regs) ((regs)->rbp)
#define stack_pointer(regs) ((regs)->rsp)
#define regs_return_value(regs) ((regs)->rax)
#define v8086_mode(regs) 0 /* No V86 mode support in long mode */
#define instruction_pointer(regs) ((regs)->ip)
#define frame_pointer(regs) ((regs)->bp)
#define stack_pointer(regs) ((regs)->sp)
#define regs_return_value(regs) ((regs)->ax)
extern unsigned long profile_pc(struct pt_regs *regs);
void signal_fault(struct pt_regs *regs, void __user *frame, char *where);

4
kernel/signal.c
View File

@ -733,13 +733,13 @@ static void print_fatal_signal(struct pt_regs *regs, int signr)
current->comm, task_pid_nr(current), signr);
#if defined(__i386__) && !defined(__arch_um__)
printk("code at %08lx: ", regs->eip);
printk("code at %08lx: ", regs->ip);
{
int i;
for (i = 0; i < 16; i++) {
unsigned char insn;
__get_user(insn, (unsigned char *)(regs->eip + i));
__get_user(insn, (unsigned char *)(regs->ip + i));
printk("%02x ", insn);
}
}