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authorAl Viro <viro@zeniv.linux.org.uk>2012-12-14 14:09:47 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-19 18:07:40 -0500
commit6bf9adfc90370b695cb111116e15fdc0e1906270 (patch)
treeb8e4d369cadad21f33b7a5f7f69d43665f821ddc /arch/x86/um
parentnew helper: compat_user_stack_pointer() (diff)
downloadlinux-dev-6bf9adfc90370b695cb111116e15fdc0e1906270.tar.xz
linux-dev-6bf9adfc90370b695cb111116e15fdc0e1906270.zip
introduce generic sys_sigaltstack(), switch x86 and um to it
Conditional on CONFIG_GENERIC_SIGALTSTACK; architectures that do not select it are completely unaffected Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to '')
-rw-r--r--arch/x86/um/Kconfig1
-rw-r--r--arch/x86/um/sys_call_table_32.c1
-rw-r--r--arch/x86/um/sys_call_table_64.c1
3 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 0fd20f241e40..96b89d874ead 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -13,6 +13,7 @@ endmenu
config UML_X86
def_bool y
select GENERIC_FIND_FIRST_BIT
+ select GENERIC_SIGALTSTACK
config 64BIT
bool "64-bit kernel" if SUBARCH = "x86"
diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c
index 812e98c098e4..a0c3b0d1a122 100644
--- a/arch/x86/um/sys_call_table_32.c
+++ b/arch/x86/um/sys_call_table_32.c
@@ -27,7 +27,6 @@
#define ptregs_iopl sys_iopl
#define ptregs_vm86old sys_vm86old
#define ptregs_vm86 sys_vm86
-#define ptregs_sigaltstack sys_sigaltstack
#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void sym(void) ;
#include <asm/syscalls_32.h>
diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c
index 170bd926a69c..f2f0723070ca 100644
--- a/arch/x86/um/sys_call_table_64.c
+++ b/arch/x86/um/sys_call_table_64.c
@@ -31,7 +31,6 @@
#define stub_fork sys_fork
#define stub_vfork sys_vfork
#define stub_execve sys_execve
-#define stub_sigaltstack sys_sigaltstack
#define stub_rt_sigreturn sys_rt_sigreturn
#define __SYSCALL_COMMON(nr, sym, compat) __SYSCALL_64(nr, sym, compat)