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authorUlrich Drepper <drepper@redhat.com>1996-09-07 04:10:57 +0000
committerUlrich Drepper <drepper@redhat.com>1996-09-07 04:10:57 +0000
commitedf5b2d7168982e1725f41e142b77e5ec88d7bf2 (patch)
treed8f99738ad6b0db07f474b26ebb8db432c147056 /sysdeps/unix/sysv/linux/i386
parent474be527c80085dfdc48568f44e1359e5452c47e (diff)
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update from main archive 960906cvs/libc-960907
Sat Sep 7 05:15:45 1996 Ulrich Drepper <drepper@cygnus.com> * libio/iofdopen: Initialize _lock field only if _IO_MTSAFE_IO. * libio/iofopen: Likewise. * libio/iofopncook.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/vasprintf.c: Likewise. * libio/vdprintf.c: Likewise. * libio/vsnprintf.c: Likewise. Sat Sep 7 03:55:47 1996 Ulrich Drepper <drepper@cygnus.com> * Makeconfig (soversions.mk): Also use shlib-versions files in add-on directories. * config.make.in (config-defines): Remove. Not used anymore. (defines): New variable. Initiliazed by @DEFINES@. * configure.in: Add AC_SUBST(DEFINES). * libio/Makefile (routines): When compiling reentrant libc add clearerr_u, feof_u, ferror_u, fputc_u, getc_u, getchar_u, iofflush_u, putc_u, putchar_u, ioflockfile. (CPPFLAGS): Add -D_IO_MTSAFE_IO for reentrant libc. * sysdeps/stub/libc-lock.h: Add stubs for __libc_cleanup_region_start and __libc_cleanup_region_end. * sysdeps/unix/i386/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. * sysdeps/unix/sysv/linux/i386/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. (__errno_location): New function. * sysdeps/unix/sysv/linux/i386/sysdep.h [PIC]: Add second syscall_error handler for reentrant libc. * sysdeps/unix/opendir.c: Remove unneeded `;'. * libio.h [_IO_MTSAFE_IO]: Include <pthread.h>. [!_IO_MTSAFE_IO]: Define _IO_flockfile and _IO_funlockfile as empty macros. * libioP.h: Include <libc-lock.h>. * libio/stdio.h: Add prototypes for *_locked and *_unlocked functions. * libio/clearerr.c: Use _IO_ protected versions of flockfile and funlockfile to be namespace clean. * libio/genops.c: Use __libc_lock_* macros for handling lock. * libio/iofdopen: Add initialization of _lock in _IO_FILE. * libio/iofopen: Likewise. * libio/iofopncook.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/vasprintf.c: Likewise. * libio/vdprintf.c: Likewise. * libio/vsnprintf.c: Likewise. * libio/fgetc.c: Use __libc_cleanup_region_* macros instead of flockfile etc. * libio/fputc.c: Likewise. * libio/freopen.c: Likewise. * libio/fseek.c: Likewise. * libio/getc.c: Likewise. * libio/getchar.c: Likewise. * libio/iofclose.c: Likewise. * libio/iofflush.c: Likewise. * libio/iofgetpos.c: Likewise. * libio/iofgets.c: Likewise. * libio/iofputs.c: Likewise. * libio/iofread.c: Likewise. * libio/iofsetpos.c: Likewise. * libio/ioftell.c: Likewise. * libio/iofwrite.c: Likewise. * libio/iogetdelim.c: Likewise. * libio/iogets.c: Likewise. * libio/ioputs.c: Likewise. * libio/iosetbuffer.c: Likewise. * libio/iosetvbuf.c: Likewise. * libio/ioungetc.c: Likewise. * libio/putc.c: Likewise. * libio/putchar.c: Likewise. * libio/rewind.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * libio/clearerr_u.c: Correct alias name. * libio/ferror_u.c: Likewise. * libio/fileno.c: Likewise. * libio/fputc_u.c: Likewise. * libio/getc.c: Likewise. * libio/getc_u.c: Likewise. * libio/getchar.c: Likewise. * libio/getchar_u.c: Likewise. * libio/putc.c: Likewise. * libio/putchar.c: Likewise. * libio/feof_u.c: Undefine macro with name of function before definition of function itself. * libio/ioflockfile.c: New file. Implementation of flockfile and funlockfile. * libio/putchar_u.c: Fix typo. Use stdout instead of fp. * malloc/malloc.h: Don't include <libc-lock.h> and don't declare _malloc_loc. * malloc/free.c: Include <libc-lock.h>. * malloc/realloc.c: Likewise. * malloc/malloc-find.c: Likewise. * malloc/malloc-size.c: Likewise. * malloc/malloc-walk.c: Likewise. * malloc/memalign.c: Likewise. * malloc/malloc.c: Likewise. * sysdeps/i386/dl-machine.h: Correct clearing of _dl_starting_up. Fri Sep 6 19:38:49 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/stub/libc-lock.h: Define __libc_lock_critical_start and __libc_lock_critical_end as empty macros. * malloc/malloc.h: Don't include <libc-lock.h> and don't declare __libc_malloc_lock. * malloc/free.c: Include <libc-lock.h>. * malloc/malloc-find.c: Likewise. * malloc/malloc-size.c: Likewise. * malloc/malloc-walk.c: Likewise. * malloc/malloc.c: Likewise. * malloc/memalign.c: Likewise. * malloc/realloc.c: Likewise. * Makefile: Undo change from Mon Sep 2 22:15:14 1996. No more extra_solibs pass. * Rules: Likewise. * extra-lib.mk: Likewise. * manual/Makefile: Likewise. * db/Makefile (makedb): Choose dependecies based on build-shared. Patch by Andres Schwab. * sysdeps/posix/sysconf.c: Don't use PTHREAD_DESTRUCTOR_ITERATIONS but _POSIX_THREAD_DESTRUCTOR_ITERATIONS. * sysdeps/unix/sysv/linux/errnos.h: New file. * sysdeps/unix/sysv/linux/schedbits.h: New file. * sysdeps/unix/sysv/linux/waitflags.h: New file. * sysdeps/unix/sysv/linux/gnu/types.h: Add definition of `key_t'. Fri Sep 6 08:26:31 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * rpm/template: Fix typo in %build section. Fri Sep 6 03:31:07 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/errnos.h: Don't define errno macro when building libc without thread support. * resolv/netdb.h: Likewise for h_errno macro. Thu Sep 5 23:01:48 1996 Ulrich Drepper <drepper@cygnus.com> * libc-symbols.h: Add new macro weak_const_function. It's like weak_function, but the function is additionally marked as const. * features.h: Only include <sys/cdefs.h> if !__ASSEMBLER__. Thu Sep 5 22:55:49 1996 Richard Henderson <rth@tamu.edu> * inet/herrno.c (__h_errno_location): New function. (h_errno): Make strong_alias __h_errno so that we can access the variable even if `h_errno' is a macro. * resolv/netdb.h: Define macro h_errno to access thread specific version of h_errno variable. Declare alias __h_errno for h_errno. * resolv/res_query (h_errno): Remove definition. * sysdeps/unix/sysv/linux/errnos.h [!__ASSEMBLER__ && __USE_REENTRANT]: Add macro `errno' to get thread specific variable. * sysdeps/unix/alpha/sysdep.S [_LIBC_REENTRANT]: Set errno using __errno_location function. (__errno_location): New function. Thu Sep 5 21:08:44 1996 Ulrich Drepper <drepper@cygnus.com> * posix/gnu/types.h: Remove definition of key_t. * sysdeps/generic/gnu/types.h: Move it to here. * sysdeps/unix/sysv/linux/gnu/types.h: Add Linux specific definition of key_t. * sysdeps/unix/sysv/linux/waitflags.h: New file. Linux specific definitions. * sysdeps/unix/sysv/linux/schedbits.h: New file. Include clone prototypes and associated flags. Thu Sep 5 08:58:47 1996 Richard Henderson <rth@tamu.edu> * sysdeps/alpha/elf/start.S: Make _start global again. hertz. here. Wed Sep 4 16:16:13 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/mach/hurd/send.c (__send): De-ANSI-fy. * sysdeps/mach/hurd/sendto.c (sendto): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
-rw-r--r--sysdeps/unix/sysv/linux/i386/sysdep.S32
-rw-r--r--sysdeps/unix/sysv/linux/i386/sysdep.h31
2 files changed, 53 insertions, 10 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.S b/sysdeps/unix/sysv/linux/i386/sysdep.S
index 0130ad02a9..7d5444d6a6 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.S
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -27,26 +27,46 @@ Cambridge, MA 02139, USA. */
.globl errno
.type errno,@object
.size errno,4
-errno: .space 4
+errno: .zero 4
.globl _errno
.type _errno,@object
_errno = errno /* This name is expected by hj libc.so.5 startup code. */
.text
-/* The following code is not used at all in the shared library.
- The PIC system call stubs set errno themselves. */
+/* The following code is only used in the shared library when we
+ compile the reentrant version. Otherwise each system call defines
+ each own version. */
-#ifndef PIC
+#ifndef PIC
/* The syscall stubs jump here when they detect an error.
The code for Linux is almost identical to the canonical Unix/i386
code, except that the error number in %eax is negated. */
-.globl __syscall_error
+ .globl __syscall_error
+ .type __syscall_error,@function
__syscall_error:
negl %eax
#define __syscall_error __syscall_error_1
#include <sysdeps/unix/i386/sysdep.S>
+#endif /* !PIC */
+
+
+#ifdef _LIBC_REENTRANT
+ .globl __errno_location
+ .type __errno_location,@function
+__errno_location:
+#ifdef PIC
+ call .L2
+.L2: popl %ecx
+ addl $_GLOBAL_OFFSET_TABLE_+[.-.L2], %ecx
+ movl errno@GOT(%ecx), %eax
+#else
+ movl $errno, %eax
+#endif
+ ret
+.Lfe1:
+ .size __errno_location, .Lfe1-__errno_location
#endif
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index c77bbbbf86..96470a19b9 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -45,21 +45,44 @@ Cambridge, MA 02139, USA. */
testl %eax, %eax; \
jl syscall_error;
-#ifndef PIC
+#ifndef PIC
#define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
#else
/* Store (- %eax) into errno through the GOT. */
+#ifdef _LIBC_REENTRANT
#define SYSCALL_ERROR_HANDLER \
+ .type syscall_error,@function; \
+syscall_error: \
+ pushl %ebx; \
+ call 0f; \
+0:popl %ebx; \
+ xorl %edx, %edx; \
+ addl $_GLOBAL_OFFSET_TABLE_+[.-0b], %ebx; \
+ subl %eax, %edx; \
+ movl errno@GOT(%ebx), %ecx; \
+ movl %edx, (%ecx); \
+ pushl %edx; \
+ call __errno_location@PLT; \
+ popl %ecx; \
+ popl %ebx; \
+ movl %ecx, (%eax); \
+ movl $-1, %eax; \
+ ret;
+#else
+#define SYSCALL_ERROR_HANDLER \
+ .type syscall_error,@function; \
syscall_error: \
call 0f; \
0:popl %ecx; \
- negl %eax; \
+ xorl %edx, %edx; \
addl $_GLOBAL_OFFSET_TABLE_+[.-0b], %ecx; \
+ subl %eax, %edx; \
movl errno@GOT(%ecx), %ecx; \
- movl %eax, (%ecx); \
+ movl %edx, (%ecx); \
movl $-1, %eax; \
ret;
-#endif
+#endif /* _LIBC_REENTRANT */
+#endif /* PIC */
/* Linux takes system call arguments in registers: