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OpenCloudOS-Kernel
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x32: If configured, add x32 system calls to system call tables 

If CONFIG_X86_X32_ABI is defined, add the x32 system calls to the
system call tables.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2012-02-19 11:08:37 -08:00
parent d1a797f388
commit a06c9bc064
2 changed files with 11 additions and 2 deletions
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6
arch/x86/kernel/asm-offsets_64.c
View File

@ -2,7 +2,11 @@
#define __SYSCALL_64(nr, sym, compat) [nr] = 1, #define __SYSCALL_64(nr, sym, compat) [nr] = 1,
#define __SYSCALL_COMMON(nr, sym, compat) [nr] = 1, #define __SYSCALL_COMMON(nr, sym, compat) [nr] = 1,
#define __SYSCALL_X32(nr, sym, compat) /* Not yet */ #ifdef CONFIG_X86_X32_ABI
# define __SYSCALL_X32(nr, sym, compat) [nr] = 1,
#else
# define __SYSCALL_X32(nr, sym, compat) /* nothing */
#endif
static char syscalls_64[] = { static char syscalls_64[] = {
#include <asm/syscalls_64.h> #include <asm/syscalls_64.h>
}; };

7
arch/x86/kernel/syscall_64.c
View File

@ -6,7 +6,12 @@
#include <asm/asm-offsets.h> #include <asm/asm-offsets.h>
#define __SYSCALL_COMMON(nr, sym, compat) __SYSCALL_64(nr, sym, compat) #define __SYSCALL_COMMON(nr, sym, compat) __SYSCALL_64(nr, sym, compat)
#define __SYSCALL_X32(nr, sym, compat) /* Not yet */
#ifdef CONFIG_X86_X32_ABI
# define __SYSCALL_X32(nr, sym, compat) __SYSCALL_64(nr, sym, compat)
#else
# define __SYSCALL_X32(nr, sym, compat) /* nothing */
#endif
#define __SYSCALL_64(nr, sym, compat) extern asmlinkage void sym(void) ; #define __SYSCALL_64(nr, sym, compat) extern asmlinkage void sym(void) ;
#include <asm/syscalls_64.h> #include <asm/syscalls_64.h>