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| author | H. Peter Anvin <hpa@linux.intel.com> | 2011-11-11 16:07:41 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-11-17 13:35:37 -0800 |
| commit | 303395ac3bf3e2cb488435537d416bc840438fcb (patch) | |
| tree | f979e40575b28ba5bb851d6de0bb0ae5b91541c3 /arch/x86/kernel/syscall_64.c | |
| parent | 29dc54c673ea2531d589400badb4ada5f5f60dae (diff) | |
| download | linux-303395ac3bf3e2cb488435537d416bc840438fcb.tar.bz2 | |
x86: Generate system call tables and unistd_*.h from tables
Generate system call tables and unistd_*.h automatically from the
tables in arch/x86/syscalls. All other information, like NR_syscalls,
is auto-generated, some of which is in asm-offsets_*.c.
This allows us to keep all the system call information in one place,
and allows for kernel space and user space to see different
information; this is currently used for the ia32 system call numbers
when building the 64-bit kernel, but will be used by the x32 ABI in
the near future.
This also removes some gratuitious differences between i386, x86-64
and ia32; in particular, now all system call tables are generated with
the same mechanism.
Cc: H. J. Lu <hjl.tools@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/syscall_64.c')
| -rw-r--r-- | arch/x86/kernel/syscall_64.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/x86/kernel/syscall_64.c b/arch/x86/kernel/syscall_64.c index 0edfafa1b269..7ac7943be02c 100644 --- a/arch/x86/kernel/syscall_64.c +++ b/arch/x86/kernel/syscall_64.c @@ -5,15 +5,11 @@ #include <linux/cache.h> #include <asm/asm-offsets.h> -#define __NO_STUBS +#define __SYSCALL_64(nr, sym, compat) extern asmlinkage void sym(void) ; +#include <asm/syscalls_64.h> +#undef __SYSCALL_64 -#define __SYSCALL(nr, sym) extern asmlinkage void sym(void) ; -#undef _ASM_X86_UNISTD_64_H -#include <asm/unistd_64.h> - -#undef __SYSCALL -#define __SYSCALL(nr, sym) [nr] = sym, -#undef _ASM_X86_UNISTD_64_H +#define __SYSCALL_64(nr, sym, compat) [nr] = sym, typedef void (*sys_call_ptr_t)(void); @@ -25,5 +21,5 @@ const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = { * when the & below is removed. */ [0 ... __NR_syscall_max] = &sys_ni_syscall, -#include <asm/unistd_64.h> +#include <asm/syscalls_64.h> }; |