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[IA64] convert sys_ptrace to arch_ptrace 

Convert sys_ptrace() to arch_ptrace().

Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Petr Tesarik 2008-02-11 22:43:05 +01:00 committed by Tony Luck
parent e868a55c2a
commit eac738e6ce
2 changed files with 3 additions and 41 deletions
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42
arch/ia64/kernel/ptrace.c
View File

@ -1470,46 +1470,13 @@ ptrace_disable (struct task_struct *child)
child_psr->tb = 0; child_psr->tb = 0;
} }
asmlinkage long long
sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) arch_ptrace (struct task_struct *child, long request, long addr, long data)
{ {
struct pt_regs *pt; struct pt_regs *pt;
struct task_struct *child;
struct switch_stack *sw; struct switch_stack *sw;
long ret; long ret;
lock_kernel();
ret = -EPERM;
if (request == PTRACE_TRACEME) {
ret = ptrace_traceme();
goto out;
}
ret = -ESRCH;
read_lock(&tasklist_lock);
{
child = find_task_by_pid(pid);
if (child)
get_task_struct(child);
}
read_unlock(&tasklist_lock);
if (!child)
goto out;
ret = -EPERM;
if (pid == 1) /* no messing around with init! */
goto out_tsk;
if (request == PTRACE_ATTACH) {
ret = ptrace_attach(child);
if (!ret)
arch_ptrace_attach(child);
goto out_tsk;
}
ret = ptrace_check_attach(child, request == PTRACE_KILL);
if (ret < 0)
goto out_tsk;
pt = task_pt_regs(child); pt = task_pt_regs(child);
sw = (struct switch_stack *) (child->thread.ksp + 16); sw = (struct switch_stack *) (child->thread.ksp + 16);
@ -1594,7 +1561,7 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data)
*/ */
if (child->exit_state == EXIT_ZOMBIE) if (child->exit_state == EXIT_ZOMBIE)
/* already dead */ /* already dead */
goto out_tsk; return 0;
child->exit_code = SIGKILL; child->exit_code = SIGKILL;
ptrace_disable(child); ptrace_disable(child);
@ -1643,9 +1610,6 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data)
goto out_tsk; goto out_tsk;
} }
out_tsk: out_tsk:
put_task_struct(child);
out:
unlock_kernel();
return ret; return ret;
} }

2
include/asm-ia64/ptrace.h
View File

@ -233,8 +233,6 @@ struct switch_stack {
#include <asm/current.h> #include <asm/current.h>
#include <asm/page.h> #include <asm/page.h>
#define __ARCH_SYS_PTRACE 1
/* /*
* We use the ia64_psr(regs)->ri to determine which of the three * We use the ia64_psr(regs)->ri to determine which of the three
* instructions in bundle (16 bytes) took the sample. Generate * instructions in bundle (16 bytes) took the sample. Generate