diff options
Diffstat (limited to 'linux-headers/asm-x86/unistd.h')
| -rw-r--r-- | linux-headers/asm-x86/unistd.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/linux-headers/asm-x86/unistd.h b/linux-headers/asm-x86/unistd.h index 498d1515c6..d2af42d61d 100644 --- a/linux-headers/asm-x86/unistd.h +++ b/linux-headers/asm-x86/unistd.h @@ -2,8 +2,15 @@ #ifndef _ASM_X86_UNISTD_H #define _ASM_X86_UNISTD_H -/* x32 syscall flag bit */ -#define __X32_SYSCALL_BIT 0x40000000UL +/* + * x32 syscall flag bit. Some user programs expect syscall NR macros + * and __X32_SYSCALL_BIT to have type int, even though syscall numbers + * are, for practical purposes, unsigned long. + * + * Fortunately, expressions like (nr & ~__X32_SYSCALL_BIT) do the right + * thing regardless. + */ +#define __X32_SYSCALL_BIT 0x40000000 # ifdef __i386__ # include <asm/unistd_32.h> |