summaryrefslogtreecommitdiff
path: root/arch/x86/kernel/asm-offsets_32.c
diff options
context:
space:
mode:
authorH. Peter Anvin <hpa@linux.intel.com>2011-11-11 16:07:41 -0800
committerH. Peter Anvin <hpa@linux.intel.com>2011-11-17 13:35:37 -0800
commit303395ac3bf3e2cb488435537d416bc840438fcb (patch)
treef979e40575b28ba5bb851d6de0bb0ae5b91541c3 /arch/x86/kernel/asm-offsets_32.c
parent29dc54c673ea2531d589400badb4ada5f5f60dae (diff)
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/asm-offsets_32.c')
-rw-r--r--arch/x86/kernel/asm-offsets_32.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 395a10e68067..85d98ab15cdc 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -3,6 +3,11 @@
#include <linux/lguest.h>
#include "../../../drivers/lguest/lg.h"
+#define __SYSCALL_I386(nr, sym, compat) [nr] = 1,
+static char syscalls[] = {
+#include <asm/syscalls_32.h>
+};
+
/* workaround for a warning with -Wmissing-prototypes */
void foo(void);
@@ -76,4 +81,7 @@ void foo(void)
OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode);
OFFSET(LGUEST_PAGES_regs, lguest_pages, regs);
#endif
+ BLANK();
+ DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
+ DEFINE(NR_syscalls, sizeof(syscalls));
}