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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-20 18:05:28 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-20 18:05:28 -0800 |
commit | 54d46ea993744c5408e39ce0cb4851e13cbea716 (patch) | |
tree | 8e38fa92cc2ae72e0353c44e1e68be9bf5a7a058 /arch/ia64/include | |
parent | f59dc2bb5a50b26ea751f9eac1c81e4cc7de5257 (diff) | |
parent | 50ececcfa7d1acee085b2c518cad495062db6379 (diff) | |
download | linux-54d46ea993744c5408e39ce0cb4851e13cbea716.tar.gz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull signal handling cleanups from Al Viro: "sigaltstack infrastructure + conversion for x86, alpha and um, COMPAT_SYSCALL_DEFINE infrastructure. Note that there are several conflicts between "unify SS_ONSTACK/SS_DISABLE definitions" and UAPI patches in mainline; resolution is trivial - just remove definitions of SS_ONSTACK and SS_DISABLED from arch/*/uapi/asm/signal.h; they are all identical and include/uapi/linux/signal.h contains the unified variant." Fixed up conflicts as per Al. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: alpha: switch to generic sigaltstack new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those generic compat_sys_sigaltstack() introduce generic sys_sigaltstack(), switch x86 and um to it new helper: compat_user_stack_pointer() new helper: restore_altstack() unify SS_ONSTACK/SS_DISABLE definitions new helper: current_user_stack_pointer() missing user_stack_pointer() instances Bury the conditionals from kernel_thread/kernel_execve series COMPAT_SYSCALL_DEFINE: infrastructure
Diffstat (limited to 'arch/ia64/include')
-rw-r--r-- | arch/ia64/include/asm/ptrace.h | 5 | ||||
-rw-r--r-- | arch/ia64/include/asm/unistd.h | 1 | ||||
-rw-r--r-- | arch/ia64/include/uapi/asm/signal.h | 6 |
3 files changed, 5 insertions, 7 deletions
diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h index b0e973649cb9..845143990a1d 100644 --- a/arch/ia64/include/asm/ptrace.h +++ b/arch/ia64/include/asm/ptrace.h @@ -78,6 +78,11 @@ static inline long regs_return_value(struct pt_regs *regs) unsigned long __ip = instruction_pointer(regs); \ (__ip & ~3UL) + ((__ip & 3UL) << 2); \ }) +/* + * Why not default? Because user_stack_pointer() on ia64 gives register + * stack backing store instead... + */ +#define current_user_stack_pointer() (current_pt_regs()->r12) /* given a pointer to a task_struct, return the user's pt_regs */ # define task_pt_regs(t) (((struct pt_regs *) ((char *) (t) + IA64_STK_OFFSET)) - 1) diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h index 1574bca86138..8b3ff2f5b861 100644 --- a/arch/ia64/include/asm/unistd.h +++ b/arch/ia64/include/asm/unistd.h @@ -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) diff --git a/arch/ia64/include/uapi/asm/signal.h b/arch/ia64/include/uapi/asm/signal.h index e531c424434c..c0ea2855e96b 100644 --- a/arch/ia64/include/uapi/asm/signal.h +++ b/arch/ia64/include/uapi/asm/signal.h @@ -79,12 +79,6 @@ #define SA_RESTORER 0x04000000 /* - * sigaltstack controls - */ -#define SS_ONSTACK 1 -#define SS_DISABLE 2 - -/* * The minimum stack size needs to be fairly large because we want to * be sure that an app compiled for today's CPUs will continue to run * on all future CPU models. The CPU model matters because the signal |