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authorUlrich Drepper <drepper@redhat.com>1998-04-21 22:58:23 +0000
committerUlrich Drepper <drepper@redhat.com>1998-04-21 22:58:23 +0000
commit01cad722667c7b25535b2d248598f3d535e7caa9 (patch)
tree606a2436a10d7d48fcbb3e1097500d8a0b8144d1 /misc
parent28f1c862ddaa3515d0f74102379301048c76cf0f (diff)
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Update.
1998-04-21 21:49 Zack Weinberg <zack@rabi.phys.columbia.edu> * misc/sys/cdefs.h: New macro __REDIRECT to support changing the asm symbol name of functions. * include/features.h: Kill redundant test. * dirent/dirent.h: Use new macros to implement __USE_FILE_OFFSET64. * io/ftw.h: Likewise. * io/sys/stat.h: Likewise. * io/sys/statfs.h: Likewise. * io/sys/statvfs.h: Likewise. * libio/stdio.h: Likewise. * resource/sys/resource.h: Likewise. * rt/aio.h: Likewise. * posix/unistd.h: Use new macros for __USE_FILE_OFFSET64 and __FAVOR_BSD. * signal/signal.h: Use new macros for BSD vs. SysV signal(). * misc/Makefile: Drop bsd-compat.c. Make libbsd-compat.a a dummy library. * misc/bsd-compat.c: Removed.
Diffstat (limited to 'misc')
-rw-r--r--misc/Makefile10
-rw-r--r--misc/bsd-compat.c37
-rw-r--r--misc/sys/cdefs.h34
3 files changed, 30 insertions, 51 deletions
diff --git a/misc/Makefile b/misc/Makefile
index 6c120ba..c8b2302 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -58,24 +58,16 @@ routines := brk sbrk sstk ioctl \
err error ustat \
getsysstats dirname regexp
aux := init-misc
-distribute := bsd-compat.c
-extra-objs := bsd-compat.o
install-lib := libbsd-compat.a libg.a
-non-lib.a := libbsd-compat.a
gpl2lgpl := error.c error.h
tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt
include ../Rules
-
-$(objpfx)libbsd-compat.a: $(objpfx)bsd-compat.o
- rm -f $@
- ln $< $@
-
+$(objpfx)libbsd-compat.a: $(dep-dummy-lib); $(make-dummy-lib)
$(objpfx)libg.a: $(dep-dummy-lib); $(make-dummy-lib)
-
CFLAGS-init-misc.c = -fkeep-inline-functions
ifeq ($(build-shared),yes)
diff --git a/misc/bsd-compat.c b/misc/bsd-compat.c
deleted file mode 100644
index f18cf38..0000000
--- a/misc/bsd-compat.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/* BSD-compatible versions of functions where BSD and POSIX.1 conflict.
- Copyright (C) 1991, 92, 94, 95, 96, 97 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
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <sys/types.h>
-
-/* Don't include unistd.h because it declares a conflicting
- prototype for the POSIX.1 `getpgrp' function. */
-extern pid_t __getpgid __P ((pid_t));
-extern int __setpgid __P ((pid_t, pid_t));
-
-pid_t
-getpgrp (pid_t pid)
-{
- return __getpgid (pid);
-}
-
-int
-setpgrp (pid_t pid, pid_t pgrp)
-{
- return __setpgid (pid, pgrp);
-}
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 5f40a0a..c0c442e 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -95,15 +95,39 @@
# define __END_DECLS
#endif
-/* GCC2 has various useful declarations that can be made with the
+/* __asm__ ("xyz") is used throughout the headers to rename functions
+ at the assembly language level. This is wrapped by the __REDIRECT
+ macro, in order to support compilers that can do this some other
+ way. When compilers don't support asm-names at all, we have to do
+ preprocessor tricks instead (which don't have exactly the right
+ semantics, but it's the best we can do).
+
+ Example:
+ int __REDIRECT(setpgrp, __P((__pid_t pid, __pid_t pgrp)), setpgid); */
+
+#if defined __GNUC__ && __GNUC__ >= 2
+
+# define __REDIRECT(name, proto, asname) name proto __asm__ (#asname)
+
+/*
+#elif __SOME_OTHER_COMPILER__
+
+# define __attribute__(xyz)
+# define __ALIAS(name, proto, asname) name proto; \
+ _Pragma("let " #name " = " #asname)
+*/
+#endif
+
+/* GCC has various useful declarations that can be made with the
`__attribute__' syntax. All of the ways we use this do fine if
- they are omitted for compilers that don't understand it. */
+ they are omitted for compilers that don't understand it. */
#if !defined __GNUC__ || __GNUC__ < 2
-# define __attribute__(xyz) /* Ignore. */
-#endif
+# define __attribute__(xyz) /* Ignore. */
+
+#endif
-/* For now no version of gcc knows the `restrict' keyword. Define it
+/* No current version of gcc knows the `restrict' keyword. Define it
for now unconditionally to the empty string. */
#define __restrict