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| author |  Andy Lutomirski <luto@kernel.org>
| 2016-01-28 15:11:24 -0800 |
|---|---|---|
| committer |  Ingo Molnar <mingo@kernel.org>
| 2016-01-29 09:46:38 +0100 |
| commit | cfcbadb49dabb05efa23e1a0f95f3391c0a815bc (patch) | |
| tree | 4db34be982c4d1e4604bd9c4fbe9e3bb6ce432aa /arch/x86/entry/syscall_64.c | |
| parent | x86/syscalls: Move compat syscall entry handling into syscalltbl.sh (diff) | |
| download | linux-cfcbadb49dabb05efa23e1a0f95f3391c0a815bc.tar.gz linux-cfcbadb49dabb05efa23e1a0f95f3391c0a815bc.tar.bz2 linux-cfcbadb49dabb05efa23e1a0f95f3391c0a815bc.zip | |
x86/syscalls: Add syscall entry qualifiers
This will let us specify something like 'sys_xyz/foo' instead of
'sys_xyz' in the syscall table, where the 'foo' qualifier conveys
some extra information to the C code.
The intent is to allow things like sys_execve/ptregs to indicate
that sys_execve() touches pt_regs.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/2de06e33dce62556b3ec662006fcb295504e296e.1454022279.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/entry/syscall_64.c')
| -rw-r--r-- | arch/x86/entry/syscall_64.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c index 3781989b180e..a1d408772ae6 100644 --- a/arch/x86/entry/syscall_64.c +++ b/arch/x86/entry/syscall_64.c @@ -6,11 +6,11 @@ #include <asm/asm-offsets.h> #include <asm/syscall.h> -#define __SYSCALL_64(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; +#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; #include <asm/syscalls_64.h> #undef __SYSCALL_64 -#define __SYSCALL_64(nr, sym) [nr] = sym, +#define __SYSCALL_64(nr, sym, qual) [nr] = sym, extern long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); |