diff options
| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-20 18:05:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-20 18:05:28 -0800 |
| commit | 54d46ea993744c5408e39ce0cb4851e13cbea716 (patch) | |
| tree | 8e38fa92cc2ae72e0353c44e1e68be9bf5a7a058 /arch/s390 | |
| parent | Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm (diff) | |
| parent | alpha: switch to generic sigaltstack (diff) | |
| download | linux-dev-54d46ea993744c5408e39ce0cb4851e13cbea716.tar.xz linux-dev-54d46ea993744c5408e39ce0cb4851e13cbea716.zip | |
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/s390')
| -rw-r--r-- | arch/s390/Kconfig | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/compat.h | 3 | ||||
| -rw-r--r-- | arch/s390/include/asm/unistd.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/uapi/asm/signal.h | 6 |
4 files changed, 3 insertions, 9 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 32425af9d68d..b5ea38c25647 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -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 diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index 18cd6b592650..f8c6df6cd1f0 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -7,6 +7,9 @@ #include <linux/sched.h> #include <linux/thread_info.h> +#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64)) +#define __SC_DELOUSE(t,v) (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)) + #define PSW32_MASK_PER 0x40000000UL #define PSW32_MASK_DAT 0x04000000UL #define PSW32_MASK_IO 0x02000000UL diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 086bb8eaf6ab..636530872516 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -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 diff --git a/arch/s390/include/uapi/asm/signal.h b/arch/s390/include/uapi/asm/signal.h index 8c6a49e392ee..2f43cfbf5f1a 100644 --- a/arch/s390/include/uapi/asm/signal.h +++ b/arch/s390/include/uapi/asm/signal.h @@ -90,12 +90,6 @@ typedef unsigned long sigset_t; #define SA_RESTORER 0x04000000 -/* - * sigaltstack controls - */ -#define SS_ONSTACK 1 -#define SS_DISABLE 2 - #define MINSIGSTKSZ 2048 #define SIGSTKSZ 8192 |