diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h | 50 |
1 files changed, 6 insertions, 44 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h b/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h index 466f0177c3..c59c8dbbdb 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h +++ b/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h @@ -16,52 +16,14 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#ifndef _DL_SYSDEP_H -#define _DL_SYSDEP_H 1 +#ifndef _LINUX_I686_DL_SYSDEP_H +#define _LINUX_I686_DL_SYSDEP_H 1 -/* This macro must be defined to either 0 or 1. +/* The i386 file does most of the work. */ +#include_next <dl-sysdep.h> - If 1, then an errno global variable hidden in ld.so will work right with - all the errno-using libc code compiled for ld.so, and there is never a - need to share the errno location with libc. This is appropriate only if - all the libc functions that ld.so uses are called without PLT and always - get the versions linked into ld.so rather than the libc ones. */ - -#ifdef IS_IN_rtld -# define RTLD_PRIVATE_ERRNO 1 -#else -# define RTLD_PRIVATE_ERRNO 0 -#endif - -/* Traditionally system calls have been made using int $0x80. A - second method was introduced which, if possible, will use the - sysenter/syscall instructions. To signal the presence and where to - find the code the kernel passes an AT_SYSINFO value in the - auxiliary vector to the application. */ -#define NEED_DL_SYSINFO 1 +/* Actually use the vDSO entry point for syscalls. + i386/dl-sysdep.h arranges to support it, but not use it. */ #define USE_DL_SYSINFO 1 -#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__ -extern void _dl_sysinfo_int80 (void) attribute_hidden; -# define DL_SYSINFO_DEFAULT (uintptr_t) _dl_sysinfo_int80 -# define DL_SYSINFO_IMPLEMENTATION \ - asm (".text\n\t" \ - ".type _dl_sysinfo_int80,@function\n\t" \ - ".hidden _dl_sysinfo_int80\n" \ - CFI_STARTPROC "\n" \ - "_dl_sysinfo_int80:\n\t" \ - "int $0x80;\n\t" \ - "ret;\n\t" \ - CFI_ENDPROC "\n" \ - ".size _dl_sysinfo_int80,.-_dl_sysinfo_int80\n\t" \ - ".previous"); -#endif - - -#ifndef __ASSEMBLER__ -/* Get version of the OS. */ -extern int _dl_discover_osversion (void) attribute_hidden; -# define HAVE_DL_DISCOVER_OSVERSION 1 -#endif - #endif /* dl-sysdep.h */ |