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authorUlrich Drepper <drepper@redhat.com>1996-09-12 02:51:03 +0000
committerUlrich Drepper <drepper@redhat.com>1996-09-12 02:51:03 +0000
commitf0f1bf8536fe660cb6230a22694f9b7e6b02605e (patch)
treea26814737a9eb5d4d5f4b0144f2fe610057a5d62 /sysdeps/unix
parent158ff48e348ece17fbda4d9b3c152df2f7cc76d0 (diff)
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update from main archive 960911cvs/libc-960912
Thu Sep 12 03:35:27 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/i386/Dist: Remove init-first.h. * sysdeps/unix/sysv/linux/m68k/Dist: Likewise. * sysdeps/unix/sysv/linux/Dist: Add init-first.h. 1996-09-11 Paul Eggert <eggert@twinsun.com> * strftime.c (strftime): Handle E and O modifiers, required for POSIX.2 and XPG4. Don't use sprintf to format numbers; this way, we can handle time_t correctly regardless of whether it's signed. Don't dump core if format ends in %. In default %c format, use %e instead of %d, for POSIX.2 compatibility. For %z: Use tm_gmtoff if available. Output nothing if tm_isdst is negative. Output correct value even if arg is 1969-12-31 23:59:59 UTC. Don't assume that UTC offset is less than 24 hours; Posix requires support for 24 hours, and there's no point limiting it at all. (HAVE_TM_GMTOFF, TYPE_SIGNED, INT_STRLEN_BOUND): New macros. (CHAR_BIT): Define if <limits.h> doesn't. (tm_diff): New function. (fmt, <stdio.h>): Remove; no longer used. Thu Sep 12 02:21:44 1996 Ulrich Drepper <drepper@cygnus.com> * db/Makefile: Add extra-libs-others variable so that shared library is built in `others' pass. * elf/Makefile: Likewise. * math/Makefile: Likewise. * resolv/Makefile: Likewise. * Makefile (generated): Add version.info.h. * time/checktab.awk: New file. From ADO 96k. * time/iso3166.tab: Likewise. * time/tzselect.ksh: Likewise. * time/zone.tab: Likewise. * stdio-common/vfprintf.c: Correct cleanup registration. We cannot use a macro 1996-09-11 Paul Eggert <eggert@twinsun.com> * time/time.h (tm_gmtoff, tm_zone): Prefix with `__' unless __USE_BSD; this is required for ANSI C compatibility. * manual/time.texi: Replace GMT by UTC, daylight savings by daylight saving, timezone by time zone. Rewrite description of %V to match ISO 8601. Fix TZ Posix string example for US Eastern time. Explain tzname[1] when DST isn't used. Explain tzname when multiple abbreviations used (e.g. EST/EWT/EDT). Explain that timezone's sign is opposite from tm_gmtoff, and that timezone lacks DST adjustment whereas tm_gmtoff has it. Deprecate tzname and timezone. Tue Sep 10 14:46:16 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> Implement Roland McGrath's idea of how to put an .interp into shared libraries. * interp.c: New file. * Makerules (interp-obj): New object, linked into every shared library. (common-generated): Add interp.so. (CFLAGS-interp.c): Pass name of interpreter. Tue Sep 10 21:09:35 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * db/Makefile: Fix typo. Tue Sep 10 19:29:53 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * nss/db-Makefile ($(VAR_DB)/passwd.db): Look for multiple occurences of the same uid, and only generate a mapping for the first one. Tue Sep 10 03:14:59 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/system.c: New file, to override sysdeps/unix/system.c. Tue Sep 10 15:05:40 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makefile (before-compile): Add version-info.h, needed to build version.d. Tue Sep 10 14:14:33 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/m68k/sysdep.S: Remove check for EWOULDBLOCK, never true on Linux. (__errno_location): New function. [_LIBC_REENTRANT]: Set errno using __errno_location function. * sysdeps/unix/sysv/linux/m68k/sysdep.h [PIC]: Add second syscall_error handler for reentrant libc. Tue Sep 10 13:27:49 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/Makefile (extra-objs): Add eval.so to get dependencies. Wed Sep 11 04:40:57 1996 Ulrich Drepper <drepper@cygnus.com> * time/tzset.c (__tzname_cur_max): Use type `size_t' to avoid warning. * time/tzfile.c (compute_tzname_max): Likewise.
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/sysv/linux/Dist1
-rw-r--r--sysdeps/unix/sysv/linux/i386/Dist1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/Dist1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/sysdep.S39
-rw-r--r--sysdeps/unix/sysv/linux/m68k/sysdep.h20
5 files changed, 42 insertions, 20 deletions
diff --git a/sysdeps/unix/sysv/linux/Dist b/sysdeps/unix/sysv/linux/Dist
index a6b5db6749..db0cd6000d 100644
--- a/sysdeps/unix/sysv/linux/Dist
+++ b/sysdeps/unix/sysv/linux/Dist
@@ -1,3 +1,4 @@
+init-first.h
sysctl.c
net/if.h
nfs/nfs.h
diff --git a/sysdeps/unix/sysv/linux/i386/Dist b/sysdeps/unix/sysv/linux/i386/Dist
index 780edfca50..d5cc620549 100644
--- a/sysdeps/unix/sysv/linux/i386/Dist
+++ b/sysdeps/unix/sysv/linux/i386/Dist
@@ -1,3 +1,2 @@
sys/perm.h sys/vm86.h
-init-first.h
clone.S
diff --git a/sysdeps/unix/sysv/linux/m68k/Dist b/sysdeps/unix/sysv/linux/m68k/Dist
index a281cba3f9..738b9cc542 100644
--- a/sysdeps/unix/sysv/linux/m68k/Dist
+++ b/sysdeps/unix/sysv/linux/m68k/Dist
@@ -1,2 +1 @@
-init-first.h
clone.S
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.S b/sysdeps/unix/sysv/linux/m68k/sysdep.S
index 895ea2770b..674715f824 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.S
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.S
@@ -33,8 +33,9 @@ errno: .space 4
_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
@@ -42,30 +43,34 @@ _errno = errno /* This name is expected by hj libc.so.5 startup code. */
#define _ERRNO_H
#include <errnos.h>
-.globl errno
-.globl __syscall_error
-
/* The syscall stubs jump here when they detect an error. */
.globl __syscall_error
__syscall_error:
neg.l %d0
-
-#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
- /* We translate the system's EWOULDBLOCK error into EAGAIN.
- The GNU C library always defines EWOULDBLOCK==EAGAIN.
- EWOULDBLOCK_sys is the original number. */
- move.l #EWOULDBLOCK_sys, %d1
- cmp.l %d0, %d1
- jne 1f
- move.l #EAGAIN, %d0
-1:
-#endif
-
move.l %d0, errno
+#ifdef _LIBC_REENTRANT
+ move.l %d0, -(%sp)
+ jbsr __errno_location
+ move.l (%sp)+, (%a0)
+#endif
move.l #-1, %d0
/* Copy return value to %a0 for syscalls that are declared to
return a pointer. */
move.l %d0, %a0
rts
+ .size __syscall_error, . - __syscall_error
#endif /* PIC */
+
+#ifdef _LIBC_REENTRANT
+ .globl __errno_location
+ .type __errno_location, @function
+__errno_location:
+#ifdef PIC
+ move.l (%pc, errno@GOTPC), %a0
+#else
+ lea errno, %a0
+#endif
+ rts
+ .size __errno_location, . - __errno_location
+#endif
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h
index fe2c6aa823..9de750c326 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.h
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h
@@ -78,19 +78,37 @@ Cambridge, MA 02139, USA. */
#ifdef PIC
/* Store (- %d0) into errno through the GOT. */
+#ifdef _LIBC_REENTRANT
#define SYSCALL_ERROR_HANDLER \
+ .type syscall_error, @function; \
syscall_error: \
move.l (errno@GOTPC, %pc), %a0; \
neg.l %d0; \
move.l %d0, (%a0); \
+ move.l %d0, -(%sp); \
+ jbsr __errno_location@PLTPC \
+ move.l (%sp)+, (%a0); \
move.l POUND -1, %d0; \
/* Copy return value to %a0 for syscalls that are declared to return \
a pointer (e.g., mmap). */ \
move.l %d0, %a0; \
rts;
#else
+#define SYSCALL_ERROR_HANDLER \
+ .type syscall_error, @function; \
+syscall_error: \
+ move.l (errno@GOTPC, %pc), %a0; \
+ neg.l %d0; \
+ move.l %d0, (%a0); \
+ move.l POUND -1, %d0; \
+ /* Copy return value to %a0 for syscalls that are declared to return \
+ a pointer (e.g., mmap). */ \
+ move.l %d0, %a0; \
+ rts;
+#endif /* _LIBC_REENTRANT */
+#else
#define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
-#endif
+#endif /* PIC */
/* Linux takes system call arguments in registers: