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Bury the conditionals from kernel_thread/kernel_execve series 

All architectures have
	CONFIG_GENERIC_KERNEL_THREAD
	CONFIG_GENERIC_KERNEL_EXECVE
	__ARCH_WANT_SYS_EXECVE
None of them have __ARCH_WANT_KERNEL_EXECVE and there are only two callers
of kernel_execve() (which is a trivial wrapper for do_execve() now) left.
Kill the conditionals and make both callers use do_execve().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-12-14 12:44:11 -05:00
parent 4683661388
commit ae903caae2
63 changed files with 6 additions and 131 deletions
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6
arch/Kconfig
View File

@ -271,12 +271,6 @@ config ARCH_WANT_OLD_COMPAT_IPC
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
bool
config GENERIC_KERNEL_THREAD
bool
config GENERIC_KERNEL_EXECVE
bool
config HAVE_ARCH_SECCOMP_FILTER
bool
help

2
arch/alpha/Kconfig
View File

@ -20,8 +20,6 @@ config ALPHA
select GENERIC_CMOS_UPDATE
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
help

1
arch/alpha/include/asm/unistd.h
View File

@ -481,7 +481,6 @@
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/arm/Kconfig
View File

@ -11,8 +11,6 @@ config ARM
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select GENERIC_PCI_IOMAP
select GENERIC_SMP_IDLE_THREAD
select GENERIC_STRNCPY_FROM_USER

1
arch/arm/include/asm/unistd.h
View File

@ -41,7 +41,6 @@
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_SOCKETCALL
#endif
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/arm64/Kconfig
View File

@ -7,8 +7,6 @@ config ARM64
select GENERIC_IOMAP
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_KERNEL_EXECVE
select GENERIC_KERNEL_THREAD
select GENERIC_SMP_IDLE_THREAD
select GENERIC_TIME_VSYSCALL
select HARDIRQS_SW_RESEND

1
arch/arm64/include/asm/unistd.h
View File

@ -27,6 +27,5 @@
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#endif
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#include <uapi/asm/unistd.h>

2
arch/avr32/Kconfig
View File

@ -17,8 +17,6 @@ config AVR32
select GENERIC_CLOCKEVENTS
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
help
AVR32 is a high-performance 32-bit RISC microprocessor core,
designed for cost-sensitive embedded applications, with particular

1
arch/avr32/include/asm/unistd.h
View File

@ -39,7 +39,6 @@
#define __ARCH_WANT_SYS_GETPGRP
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/blackfin/Kconfig
View File

@ -45,8 +45,6 @@ config BLACKFIN
select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
config GENERIC_CSUM
def_bool y

1
arch/blackfin/include/asm/unistd.h
View File

@ -446,7 +446,6 @@
#define __ARCH_WANT_SYS_NICE
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_VFORK
/*

2
arch/c6x/Kconfig
View File

@ -17,8 +17,6 @@ config C6X
select OF
select OF_EARLY_FLATTREE
select GENERIC_CLOCKEVENTS
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select MODULES_USE_ELF_RELA
config MMU

1
arch/c6x/include/uapi/asm/unistd.h
View File

@ -14,7 +14,6 @@
* more details.
*/
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
/* Use the standard ABI for syscalls. */

2
arch/cris/Kconfig
View File

@ -49,8 +49,6 @@ config CRIS
select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32
select GENERIC_CMOS_UPDATE
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select CLONE_BACKWARDS2
config HZ

1
arch/cris/include/asm/unistd.h
View File

@ -371,7 +371,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/frv/Kconfig
View File

@ -12,8 +12,6 @@ config FRV
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CPU_DEVICES
select ARCH_WANT_IPC_PARSE_VERSION
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
config ZONE_DMA
bool

1
arch/frv/include/asm/unistd.h
View File

@ -29,7 +29,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/h8300/Kconfig
View File

@ -8,8 +8,6 @@ config H8300
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
config SYMBOL_PREFIX
string

1
arch/h8300/include/asm/unistd.h
View File

@ -356,7 +356,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/hexagon/Kconfig
View File

@ -31,8 +31,6 @@ config HEXAGON
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
---help---
Qualcomm Hexagon is a processor architecture designed for high
performance and low power across a wide variety of applications.

1
arch/hexagon/include/uapi/asm/unistd.h
View File

@ -27,7 +27,6 @@
*/
#define sys_mmap2 sys_mmap_pgoff
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#include <asm-generic/unistd.h>

2
arch/ia64/Kconfig
View File

@ -42,8 +42,6 @@ config IA64
select GENERIC_TIME_VSYSCALL_OLD
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
default y
help
The Itanium Processor Family is Intel's 64-bit successor to

1
arch/ia64/include/asm/unistd.h
View File

@ -29,7 +29,6 @@
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#if !defined(__ASSEMBLY__) && !defined(ASSEMBLER)

2
arch/m32r/Kconfig
View File

@ -15,8 +15,6 @@ config M32R
select GENERIC_ATOMIC64
select ARCH_USES_GETTIMEOFFSET
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
config SBUS
bool

1
arch/m32r/include/asm/unistd.h
View File

@ -352,7 +352,6 @@
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK

2
arch/m68k/Kconfig
View File

@ -15,8 +15,6 @@ config M68K
select FPU if MMU
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_REL
select MODULES_USE_ELF_RELA

1
arch/m68k/include/asm/unistd.h
View File

@ -31,7 +31,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK

2
arch/microblaze/Kconfig
View File

@ -26,8 +26,6 @@ config MICROBLAZE
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select CLONE_BACKWARDS
config SWAP

1
arch/microblaze/include/asm/unistd.h
View File

@ -422,7 +422,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_VFORK
#ifdef CONFIG_MMU

2
arch/mips/Kconfig
View File

@ -40,8 +40,6 @@ config MIPS
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_REL
select MODULES_USE_ELF_RELA if 64BIT
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
menu "Machine selection"

1
arch/mips/include/asm/unistd.h
View File

@ -20,7 +20,6 @@
#define __ARCH_OMIT_COMPAT_SYS_GETDENTS64
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_IPC
#define __ARCH_WANT_SYS_PAUSE

2
arch/mn10300/Kconfig
View File

@ -8,8 +8,6 @@ config MN10300
select HAVE_ARCH_KGDB
select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
select GENERIC_CLOCKEVENTS
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select MODULES_USE_ELF_RELA
config AM33_2

1
arch/mn10300/include/asm/unistd.h
View File

@ -43,7 +43,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/openrisc/Kconfig
View File

@ -22,8 +22,6 @@ config OPENRISC
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
config MMU
def_bool y

1
arch/openrisc/include/uapi/asm/unistd.h
View File

@ -20,7 +20,6 @@
#define sys_mmap2 sys_mmap_pgoff
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_CLONE

2
arch/parisc/Kconfig
View File

@ -22,8 +22,6 @@ config PARISC
select GENERIC_STRNCPY_FROM_USER
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select CLONE_BACKWARDS
help

1
arch/parisc/include/asm/unistd.h
View File

@ -163,7 +163,6 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/powerpc/Kconfig
View File

@ -141,10 +141,8 @@ config PPC
select GENERIC_CLOCKEVENTS
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select GENERIC_KERNEL_THREAD
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_EXECVE
select CLONE_BACKWARDS
config EARLY_PRINTK

1
arch/powerpc/include/asm/unistd.h
View File

@ -55,7 +55,6 @@
#define __ARCH_WANT_SYS_NEWFSTATAT
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/s390/Kconfig
View File

@ -137,8 +137,6 @@ config S390
select GENERIC_CLOCKEVENTS
select KTIME_SCALAR if 32BIT
select HAVE_ARCH_SECCOMP_FILTER
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
select CLONE_BACKWARDS2

1
arch/s390/include/asm/unistd.h
View File

@ -53,7 +53,6 @@
# define __ARCH_WANT_COMPAT_SYS_TIME
# define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
# endif
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE

2
arch/score/Kconfig
View File

@ -13,8 +13,6 @@ config SCORE
select GENERIC_CLOCKEVENTS
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_REL
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select CLONE_BACKWARDS
choice

1
arch/score/include/asm/unistd.h
View File

@ -4,7 +4,6 @@
#define __ARCH_WANT_SYSCALL_NO_FLAGS
#define __ARCH_WANT_SYSCALL_OFF_T
#define __ARCH_WANT_SYSCALL_DEPRECATED
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK

2
arch/sh/Kconfig
View File

@ -40,8 +40,6 @@ config SUPERH
select GENERIC_STRNLEN_USER
select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast

1
arch/sh/include/asm/unistd.h
View File

@ -28,7 +28,6 @@
# define __ARCH_WANT_SYS_SIGPENDING
# define __ARCH_WANT_SYS_SIGPROCMASK
# define __ARCH_WANT_SYS_RT_SIGACTION
# define __ARCH_WANT_SYS_EXECVE
# define __ARCH_WANT_SYS_FORK
# define __ARCH_WANT_SYS_VFORK
# define __ARCH_WANT_SYS_CLONE

2
arch/sparc/Kconfig
View File

@ -41,8 +41,6 @@ config SPARC
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
config SPARC32
def_bool !64BIT

1
arch/sparc/include/asm/unistd.h
View File

@ -46,7 +46,6 @@
#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
#define __ARCH_WANT_SYS_EXECVE
/*
* "Conditional" syscalls

2
arch/tile/Kconfig
View File

@ -21,8 +21,6 @@ config TILE
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CLOCKEVENTS
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
# FIXME: investigate whether we need/want these options.
# select HAVE_IOREMAP_PROT

1
arch/tile/include/asm/unistd.h
View File

@ -16,6 +16,5 @@
#define __ARCH_WANT_SYS_LLSEEK
#endif
#define __ARCH_WANT_SYS_NEWFSTATAT
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#include <uapi/asm/unistd.h>

2
arch/unicore32/Kconfig
View File

@ -16,8 +16,6 @@ config UNICORE32
select ARCH_WANT_FRAME_POINTERS
select GENERIC_IOMAP
select MODULES_USE_ELF_REL
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
help
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip

1
arch/unicore32/include/uapi/asm/unistd.h
View File

@ -12,5 +12,4 @@
/* Use the standard ABI for syscalls. */
#include <asm-generic/unistd.h>
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE

2
arch/x86/Kconfig
View File

@ -108,8 +108,6 @@ config X86
select GENERIC_STRNLEN_USER
select HAVE_RCU_USER_QS if X86_64
select HAVE_IRQ_TIME_ACCOUNTING
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select MODULES_USE_ELF_REL if X86_32
select MODULES_USE_ELF_RELA if X86_64
select CLONE_BACKWARDS if X86_32

1
arch/x86/include/asm/unistd.h
View File

@ -50,7 +50,6 @@
# define __ARCH_WANT_SYS_TIME
# define __ARCH_WANT_SYS_UTIME
# define __ARCH_WANT_SYS_WAITPID
# define __ARCH_WANT_SYS_EXECVE
# define __ARCH_WANT_SYS_FORK
# define __ARCH_WANT_SYS_VFORK
# define __ARCH_WANT_SYS_CLONE

2
arch/x86/um/Kconfig
View File

@ -13,8 +13,6 @@ endmenu
config UML_X86
def_bool y
select GENERIC_FIND_FIRST_BIT
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
config 64BIT
bool "64-bit kernel" if SUBARCH = "x86"

2
arch/xtensa/Kconfig
View File

@ -13,8 +13,6 @@ config XTENSA
select GENERIC_CPU_DEVICES
select MODULES_USE_ELF_RELA
select GENERIC_PCI_IOMAP
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select ARCH_WANT_OPTIONAL_GPIOLIB
select CLONE_BACKWARDS
help

1
arch/xtensa/include/asm/unistd.h
View File

@ -1,7 +1,6 @@
#ifndef _XTENSA_UNISTD_H
#define _XTENSA_UNISTD_H
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#include <uapi/asm/unistd.h>

21
fs/exec.c
View File

@ -1657,7 +1657,6 @@ int get_dumpable(struct mm_struct *mm)
return __get_dumpable(mm->flags);
}
#ifdef __ARCH_WANT_SYS_EXECVE
SYSCALL_DEFINE3(execve,
const char __user *, filename,
const char __user *const __user *, argv,
@ -1685,23 +1684,3 @@ asmlinkage long compat_sys_execve(const char __user * filename,
return error;
}
#endif
#endif
#ifdef __ARCH_WANT_KERNEL_EXECVE
int kernel_execve(const char *filename,
const char *const argv[],
const char *const envp[])
{
int ret = do_execve(filename,
(const char __user *const __user *)argv,
(const char __user *const __user *)envp);
if (ret < 0)
return ret;
/*
* We were successful. We won't be returning to our caller, but
* instead to user space by manipulating the kernel stack.
*/
ret_from_kernel_execve(current_pt_regs());
}
#endif

4
include/linux/binfmts.h
View File

@ -121,8 +121,4 @@ extern void install_exec_creds(struct linux_binprm *bprm);
extern void set_binfmt(struct linux_binfmt *new);
extern void free_bprm(struct linux_binprm *);
#ifdef __ARCH_WANT_KERNEL_EXECVE
extern void ret_from_kernel_execve(struct pt_regs *normal) __noreturn;
#endif
#endif /* _LINUX_BINFMTS_H */

2
include/linux/sched.h
View File

@ -2291,9 +2291,7 @@ extern int do_execve(const char *,
const char __user * const __user *);
extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
struct task_struct *fork_idle(int);
#ifdef CONFIG_GENERIC_KERNEL_THREAD
extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
#endif
extern void set_task_comm(struct task_struct *tsk, char *from);
extern char *get_task_comm(char *to, struct task_struct *tsk);

9
include/linux/syscalls.h
View File

@ -827,15 +827,6 @@ asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
const char __user *pathname);
asmlinkage long sys_syncfs(int fd);
#ifndef CONFIG_GENERIC_KERNEL_EXECVE
int kernel_execve(const char *filename, const char *const argv[], const char *const envp[]);
#else
#define kernel_execve(filename, argv, envp) \
do_execve(filename, \
(const char __user *const __user *)argv, \
(const char __user *const __user *)envp)
#endif
asmlinkage long sys_fork(void);
asmlinkage long sys_vfork(void);
#ifdef CONFIG_CLONE_BACKWARDS

4
init/main.c
View File

@ -797,7 +797,9 @@ static void __init do_pre_smp_initcalls(void)
static int run_init_process(const char *init_filename)
{
argv_init[0] = init_filename;
return kernel_execve(init_filename, argv_init, envp_init);
return do_execve(init_filename,
(const char __user *const __user *)argv_init,
(const char __user *const __user *)envp_init);
}
static void __init kernel_init_freeable(void);

2
kernel/fork.c
View File

@ -1623,7 +1623,6 @@ long do_fork(unsigned long clone_flags,
return nr;
}
#ifdef CONFIG_GENERIC_KERNEL_THREAD
/*
* Create a kernel thread.
*/
@ -1632,7 +1631,6 @@ pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
return do_fork(flags|CLONE_VM|CLONE_UNTRACED, (unsigned long)fn,
(unsigned long)arg, NULL, NULL);
}
#endif
#ifdef __ARCH_WANT_SYS_FORK
SYSCALL_DEFINE0(fork)

6
kernel/kmod.c
View File

@ -219,9 +219,9 @@ static int ____call_usermodehelper(void *data)
commit_creds(new);
retval = kernel_execve(sub_info->path,
(const char *const *)sub_info->argv,
(const char *const *)sub_info->envp);
retval = do_execve(sub_info->path,
(const char __user *const __user *)sub_info->argv,
(const char __user *const __user *)sub_info->envp);
if (!retval)
return 0;