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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-02 21:13:45 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-21 14:39:44 -0400 |
| commit | fa18484d0947b976a769d15c83c50617493c81c1 (patch) | |
| tree | 09845575b951b585d236101e67073b3e9ed4fb16 /arch/arm | |
| parent | 6b5c8045ecc7e726cdaa2a9d9c8e5008050e1252 (diff) | |
| download | linux-fa18484d0947b976a769d15c83c50617493c81c1.tar.gz linux-fa18484d0947b976a769d15c83c50617493c81c1.tar.bz2 linux-fa18484d0947b976a769d15c83c50617493c81c1.zip | |
arm: remove unused restart trampoline
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/kernel/signal.c | 13 | ||||
| -rw-r--r-- | arch/arm/kernel/signal.h | 2 | ||||
| -rw-r--r-- | arch/arm/kernel/traps.c | 2 |
3 files changed, 0 insertions, 17 deletions
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 75c70d1850df..869c4988fefc 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -29,7 +29,6 @@ */ #define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE)) #define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE)) -#define SWI_SYS_RESTART (0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE) /* * With EABI, the syscall number has to be loaded into r7. @@ -50,18 +49,6 @@ const unsigned long sigreturn_codes[7] = { }; /* - * Either we support OABI only, or we have EABI with the OABI - * compat layer enabled. In the later case we don't know if - * user space is EABI or not, and if not we must not clobber r7. - * Always using the OABI syscall solves that issue and works for - * all those cases. - */ -const unsigned long syscall_restart_code[2] = { - SWI_SYS_RESTART, /* swi __NR_restart_syscall */ - 0xe49df004, /* ldr pc, [sp], #4 */ -}; - -/* * atomically swap in the new signal mask, and wait for a signal. */ asmlinkage int sys_sigsuspend(int restart, unsigned long oldmask, old_sigset_t mask) diff --git a/arch/arm/kernel/signal.h b/arch/arm/kernel/signal.h index 6fcfe8398aa4..5ff067b7c752 100644 --- a/arch/arm/kernel/signal.h +++ b/arch/arm/kernel/signal.h @@ -8,7 +8,5 @@ * published by the Free Software Foundation. */ #define KERN_SIGRETURN_CODE (CONFIG_VECTORS_BASE + 0x00000500) -#define KERN_RESTART_CODE (KERN_SIGRETURN_CODE + sizeof(sigreturn_codes)) extern const unsigned long sigreturn_codes[7]; -extern const unsigned long syscall_restart_code[2]; diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 778454750a6c..5aef330e9c54 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -819,8 +819,6 @@ void __init early_trap_init(void *vectors_base) */ memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE), sigreturn_codes, sizeof(sigreturn_codes)); - memcpy((void *)(vectors + KERN_RESTART_CODE - CONFIG_VECTORS_BASE), - syscall_restart_code, sizeof(syscall_restart_code)); flush_icache_range(vectors, vectors + PAGE_SIZE); modify_domain(DOMAIN_USER, DOMAIN_CLIENT); |