path: root/arch/x86_64
diff options
authorRich Felker <>2013-03-26 23:07:31 -0400
committerRich Felker <>2013-03-26 23:07:31 -0400
commitccc7b4c3a17ade90de71e1e0f44deebbffd646e6 (patch)
treef2ebd7203d59fdcd3301136924e628b94917e2e5 /arch/x86_64
parent00f1521fdd3f57c7a190550426537089fc24b9da (diff)
remove __SYSCALL_SSLEN arch macro in favor of using public _NSIG
the issue at hand is that many syscalls require as an argument the kernel-ABI size of sigset_t, intended to allow the kernel to switch to a larger sigset_t in the future. previously, each arch was defining this size in syscall_arch.h, which was redundant with the definition of _NSIG in bits/signal.h. as it's used in some not-quite-portable application code as well, _NSIG is much more likely to be recognized and understood immediately by someone reading the code, and it's also shorter and less cluttered. note that _NSIG is actually 65/129, not 64/128, but the division takes care of throwing away the off-by-one part.
Diffstat (limited to 'arch/x86_64')
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86_64/syscall_arch.h b/arch/x86_64/syscall_arch.h
index 1c4b48a2..a85c440c 100644
--- a/arch/x86_64/syscall_arch.h
+++ b/arch/x86_64/syscall_arch.h
@@ -1,8 +1,6 @@
#define __SYSCALL_LL_E(x) (x)
#define __SYSCALL_LL_O(x) (x)
-#define __SYSCALL_SSLEN 8
static __inline long __syscall0(long n)
unsigned long ret;