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| author | Will Deacon <will.deacon@arm.com> | 2012-07-19 18:47:22 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-07-28 12:11:51 +0200 |
| commit | 8d4150ccbb63419649a69fe04b46120a46d60da2 (patch) | |
| tree | fb1757a485cf79ee4051fe59ec730332013505a8 /arch/arm/kernel/signal.c | |
| parent | ARM: 7470/1: Revert "7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK"" (diff) | |
| download | linux-8d4150ccbb63419649a69fe04b46120a46d60da2.tar.xz linux-8d4150ccbb63419649a69fe04b46120a46d60da2.zip | |
ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline""
This reverts commit 3b0c06226783ffc836217eb34f7eca311b1e63f7.
We no longer require the restart trampoline for syscall restarting.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/signal.c')
| -rw-r--r-- | arch/arm/kernel/signal.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 6d3bce5bd7bc..fd2392a17ac1 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -27,7 +27,6 @@ */ #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. @@ -48,18 +47,6 @@ 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) |