diff options
Diffstat (limited to 'runtime/syscall.h')
| -rw-r--r-- | runtime/syscall.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/runtime/syscall.h b/runtime/syscall.h index 3d1034e6..24e93463 100644 --- a/runtime/syscall.h +++ b/runtime/syscall.h @@ -11,12 +11,14 @@ #define _SYSCALL_H_ #if defined(__i386__) || defined(CONFIG_IA32_EMULATION) -#define __MMAP_SYSCALL_NO_IA32 192 /* mmap2 */ +#define __MMAP_SYSCALL_NO_IA32 90 +#define __MMAP2_SYSCALL_NO_IA32 192 #define __MPROTECT_SYSCALL_NO_IA32 125 #define __MUNMAP_SYSCALL_NO_IA32 91 #define __MREMAP_SYSCALL_NO_IA32 163 # if !defined(CONFIG_IA32_EMULATION) #define MMAP_SYSCALL_NO(tsk) __MMAP_SYSCALL_NO_IA32 +#define MMAP2_SYSCALL_NO(tsk) __MMAP2_SYSCALL_NO_IA32 #define MPROTECT_SYSCALL_NO(tsk) __MPROTECT_SYSCALL_NO_IA32 #define MUNMAP_SYSCALL_NO(tsk) __MUNMAP_SYSCALL_NO_IA32 #define MREMAP_SYSCALL_NO(tsk) __MREMAP_SYSCALL_NO_IA32 @@ -25,13 +27,19 @@ #if defined(__x86_64__) #define __MMAP_SYSCALL_NO_X86_64 9 +/* x86_64 doesn't have a mmap2 system call. So, we'll use a number + * that doesn't map to a real system call. */ +#define __MMAP2_SYSCALL_NO_X86_64 ((unsigned long)-1) #define __MPROTECT_SYSCALL_NO_X86_64 10 #define __MUNMAP_SYSCALL_NO_X86_64 11 #define __MREMAP_SYSCALL_NO_X86_64 25 # if defined(CONFIG_IA32_EMULATION) -#define MMAP_SYSCALL_NO(tsk) ((test_tsk_thread_flag((tsk), TIF_IA32)) \ - ? __MMAP_SYSCALL_NO_IA32 \ +#define MMAP_SYSCALL_NO(tsk) ((test_tsk_thread_flag((tsk), TIF_IA32)) \ + ? __MMAP_SYSCALL_NO_IA32 \ : __MMAP_SYSCALL_NO_X86_64) +#define MMAP2_SYSCALL_NO(tsk) ((test_tsk_thread_flag((tsk), TIF_IA32)) \ + ? __MMAP2_SYSCALL_NO_IA32 \ + : __MMAP2_SYSCALL_NO_X86_64) #define MPROTECT_SYSCALL_NO(tsk) ((test_tsk_thread_flag((tsk), TIF_IA32)) \ ? __MPROTECT_SYSCALL_NO_IA32 \ : __MPROTECT_SYSCALL_NO_X86_64) @@ -51,13 +59,17 @@ #if defined(__powerpc__) #define MMAP_SYSCALL_NO(tsk) 90 +/* MMAP2 only exists on a 32-bit kernel. On a 64-bit kernel, we'll + * never see mmap2 (but that's OK). */ +#define MMAP2_SYSCALL_NO(tsk) 192 #define MPROTECT_SYSCALL_NO(tsk) 125 #define MUNMAP_SYSCALL_NO(tsk) 91 #define MREMAP_SYSCALL_NO(tsk) 163 #endif -#if !defined(MMAP_SYSCALL_NO) || !defined(MPROTECT_SYSCALL_NO) \ - || !defined(MUNMAP_SYSCALL_NO) || !defined(MREMAP_SYSCALL_NO) +#if !defined(MMAP_SYSCALL_NO) || !defined(MMAP2_SYSCALL_NO) \ + || !defined(MPROTECT_SYSCALL_NO) || !defined(MUNMAP_SYSCALL_NO) \ + || !defined(MREMAP_SYSCALL_NO) #error "Unimplemented architecture" #endif |