From 303395ac3bf3e2cb488435537d416bc840438fcb Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Fri, 11 Nov 2011 16:07:41 -0800 Subject: 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 Cc: Sam Ravnborg Cc: Michal Marek Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/unistd.h | 54 +++++++++++++++++++++++++++++++++++++++---- 1 file changed, 50 insertions(+), 4 deletions(-) (limited to 'arch/x86/include/asm/unistd.h') diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h index 2a58ed3e51d8..b4a3db7ce140 100644 --- a/arch/x86/include/asm/unistd.h +++ b/arch/x86/include/asm/unistd.h @@ -1,13 +1,59 @@ +#ifndef _ASM_X86_UNISTD_H +#define _ASM_X86_UNISTD_H 1 + #ifdef __KERNEL__ # ifdef CONFIG_X86_32 -# include "unistd_32.h" + +# include +# define __ARCH_WANT_IPC_PARSE_VERSION +# define __ARCH_WANT_STAT64 +# define __ARCH_WANT_SYS_OLD_MMAP +# define __ARCH_WANT_SYS_OLD_SELECT + # else -# include "unistd_64.h" + +# include +# define __ARCH_WANT_COMPAT_SYS_TIME + # endif + +# define __ARCH_WANT_OLD_READDIR +# define __ARCH_WANT_OLD_STAT +# define __ARCH_WANT_SYS_ALARM +# define __ARCH_WANT_SYS_FADVISE64 +# define __ARCH_WANT_SYS_GETHOSTNAME +# define __ARCH_WANT_SYS_GETPGRP +# define __ARCH_WANT_SYS_LLSEEK +# define __ARCH_WANT_SYS_NICE +# define __ARCH_WANT_SYS_OLDUMOUNT +# define __ARCH_WANT_SYS_OLD_GETRLIMIT +# define __ARCH_WANT_SYS_OLD_UNAME +# define __ARCH_WANT_SYS_PAUSE +# define __ARCH_WANT_SYS_RT_SIGACTION +# define __ARCH_WANT_SYS_RT_SIGSUSPEND +# define __ARCH_WANT_SYS_SGETMASK +# define __ARCH_WANT_SYS_SIGNAL +# define __ARCH_WANT_SYS_SIGPENDING +# define __ARCH_WANT_SYS_SIGPROCMASK +# define __ARCH_WANT_SYS_SOCKETCALL +# define __ARCH_WANT_SYS_TIME +# define __ARCH_WANT_SYS_UTIME +# define __ARCH_WANT_SYS_WAITPID + +/* + * "Conditional" syscalls + * + * What we want is __attribute__((weak,alias("sys_ni_syscall"))), + * but it doesn't work on all toolchains, so we just do it by hand + */ +# define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") + #else # ifdef __i386__ -# include "unistd_32.h" +# include # else -# include "unistd_64.h" +# include # endif #endif + +#endif /* _ASM_X86_UNISTD_H */ -- cgit v1.2.3-59-g8ed1b