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Update.
2004-03-08 Ulrich Drepper <drepper@redhat.com> * Makerules: Use extra-modules.mk if modules-names is defined. * extra-modules.mk: New file. * dlfcn/Makefile (CPPFLAGS-modcxaatexit.c): Removed. * elf/Makefile (CFLAGS-interp.c): Add -DNOT_IN_libc=1. * csu/Makefile ($(objpfx)version-info.h): Pass -DNOT_IN_libc=1 to compiler. * Makefile (distribute): Add symbol-hacks.h. * sysdeps/generic/symbol-hacks.h: New file. * sysdeps/wordsize-32/symbol-hacks.h: New file. * sysdeps/wordsize-32/divdi3.c: Define *_internal aliases for __divdi3, __moddi3, __udivdi3, and __umoddi3. * include/libc-symbols.h: Include <symbol-hacks.h>.
This commit is contained in:
Ulrich Drepper
parent
f79c3f28a6
commit
b30542fb71
15
ChangeLog
15
ChangeLog
@ -1,3 +1,18 @@
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2004-03-08 Ulrich Drepper <drepper@redhat.com>
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* Makerules: Use extra-modules.mk if modules-names is defined.
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* extra-modules.mk: New file.
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* dlfcn/Makefile (CPPFLAGS-modcxaatexit.c): Removed.
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* elf/Makefile (CFLAGS-interp.c): Add -DNOT_IN_libc=1.
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* csu/Makefile ($(objpfx)version-info.h): Pass -DNOT_IN_libc=1 to
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compiler.
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* Makefile (distribute): Add symbol-hacks.h.
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* sysdeps/generic/symbol-hacks.h: New file.
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* sysdeps/wordsize-32/symbol-hacks.h: New file.
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* sysdeps/wordsize-32/divdi3.c: Define *_internal aliases for __divdi3,
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__moddi3, __udivdi3, and __umoddi3.
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* include/libc-symbols.h: Include <symbol-hacks.h>.
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2004-03-08 Jeroen Dekkers <jeroen@dekkers.cx>
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* elf/rtld.c (_rtld_global_ro) [MAP_COPY]: Don't set _dl_unload_cache.
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2
Makefile
2
Makefile
@ -285,7 +285,7 @@ distribute := README README.libm INSTALL FAQ FAQ.in NOTES NEWS BUGS \
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include/shlib-compat.h include/pthread.h Versions.def \
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cppflags-iterator.mk tls.make.c \
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include/stubs-prologue.h include/gnu/stubs.h \
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include/atomic.h bits/atomic.h \
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include/atomic.h bits/atomic.h symbol-hacks.h \
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INTERFACE CONFORMANCE NAMESPACE LICENSES \
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$(addprefix scripts/, \
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rellns-sh config.sub config.guess \
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11
Makerules
11
Makerules
@ -661,6 +661,17 @@ ifdef extra-libs
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extra-libs-left := $(extra-libs)
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include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
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endif
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# The makefile may define $(modules-names) # to build additional
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# modules.
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ifdef modules-names
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# extra-lib.mk is included once for each extra lib to define rules
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# to build it, and to add its objects to the various variables.
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# During its evaluation, $(lib) is set to the name of the library.
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extra-modules-left := $(modules-names)
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include $(patsubst %,$(..)extra-modules.mk,$(modules-names))
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endif
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+depfiles := $(sources:.c=.d) \
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$(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
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@ -1,5 +1,5 @@
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# Makefile for csu code for GNU C library.
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# Copyright (C) 1995,96,97,98,99,2000,01,02,2003 Free Software Foundation, Inc.
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# Copyright (C) 1995-2003, 2004 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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@ -217,7 +217,7 @@ $(objpfx)version-info.h: $(common-objpfx)config.make $(all-Banner-files)
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$(make-target-directory)
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(case $(config-os) in \
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linux*) version=`(echo -e "#include <linux/version.h>\nUTS_RELEASE"\
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| $(CC) $(CPPFLAGS) -E -P - | \
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| $(CC) $(CPPFLAGS) -E -P - -DNOT_IN_libc=1 | \
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sed -e 's/"\([^"]*\)".*/\1/p' -e d) 2>/dev/null`;\
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if [ -z "$$version" ]; then \
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if [ -r /proc/version ]; then \
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@ -1,4 +1,4 @@
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# Copyright (C) 1995-2002, 2003 Free Software Foundation, Inc.
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# Copyright (C) 1995-2002, 2003, 2004 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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@ -99,7 +99,6 @@ $(objpfx)errmsg1.out: $(objpfx)errmsg1 $(objpfx)errmsg1mod.so
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$(objpfx)tstatexit: $(libdl)
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$(objpfx)tstatexit.out: $(objpfx)tstatexit $(objpfx)modatexit.so
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CPPFLAGS-modcxaatexit.c = -DNOT_IN_libc
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$(objpfx)tstcxaatexit: $(libdl)
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$(objpfx)tstcxaatexit.out: $(objpfx)tstcxaatexit $(objpfx)modcxaatexit.so
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@ -273,7 +273,8 @@ $(objpfx)ld.so: $(objpfx)librtld.os $(ld-map)
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rm -f $@.lds
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# interp.c exists just to get this string into the libraries.
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CFLAGS-interp.c = -D'RUNTIME_LINKER="$(slibdir)/$(rtld-installed-name)"'
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CFLAGS-interp.c = -D'RUNTIME_LINKER="$(slibdir)/$(rtld-installed-name)"' \
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-DNOT_IN_libc=1
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$(objpfx)interp.os: $(common-objpfx)config.make
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ifneq (ld.so,$(rtld-installed-name))
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9
extra-modules.mk
Normal file
9
extra-modules.mk
Normal file
@ -0,0 +1,9 @@
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# This file is included several times in a row, once
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# for each element of $(modules-names). $(extra-modules-left)
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# is initialized first to $(modules-names) so that with each
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# inclusion, we advance $(module) to the next name.
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module := $(firstword $(extra-modules-left))
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extra-modules-left := $(filter-out $(module),$(extra-modules-left))
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CPPFLAGS-$(module).c += -DNOT_IN_libc
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@ -756,4 +756,7 @@ for linking")
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# define libc_hidden_builtin_ver(local, name)
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#endif
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/* Get some dirty hacks. */
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#include <symbol-hacks.h>
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#endif /* libc-symbols.h */
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1
sysdeps/generic/symbol-hacks.h
Normal file
1
sysdeps/generic/symbol-hacks.h
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@ -0,0 +1 @@
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/* Fortunately nothing to do. */
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@ -1,5 +1,5 @@
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/* 64-bit multiplication and division
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Copyright (C) 1989, 1992-1999, 2000, 2001, 2002, 2003
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Copyright (C) 1989, 1992-1999, 2000, 2001, 2002, 2003, 2004
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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@ -294,6 +294,7 @@ __divdi3 (DWtype u, DWtype v)
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w = -w;
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return w;
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}
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strong_alias (__divdi3, __divdi3_internal)
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DWtype
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__moddi3 (DWtype u, DWtype v)
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@ -313,12 +314,14 @@ __moddi3 (DWtype u, DWtype v)
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w = -w;
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return w;
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}
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strong_alias (__moddi3, __moddi3_internal)
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UDWtype
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__udivdi3 (UDWtype u, UDWtype v)
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{
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return __udivmoddi4 (u, v, NULL);
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}
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strong_alias (__udivdi3, __udivdi3_internal)
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UDWtype
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__umoddi3 (UDWtype u, UDWtype v)
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@ -328,6 +331,7 @@ __umoddi3 (UDWtype u, UDWtype v)
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__udivmoddi4 (u, v, &w);
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return w;
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}
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strong_alias (__umoddi3, __umoddi3_internal)
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/* We declare these with compat_symbol so that they are not visible at
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link time. Programs must use the functions from libgcc. */
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30
sysdeps/wordsize-32/symbol-hacks.h
Normal file
30
sysdeps/wordsize-32/symbol-hacks.h
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/* Hacks needed for symbol manipulation.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* A very dirty trick: gcc emits references to __divdi3, __udivdi3,
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__moddi3, and __umoddi3. These functions are exported and
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therefore we get PLTs. Unnecessarily so. Changing gcc is a big
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task which might not be worth it so we play tricks with the
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assembler. */
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#if !defined __ASSEMBLER__ && !defined NOT_IN_libc && defined SHARED
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asm ("__divdi3 = __divdi3_internal");
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asm ("__udivdi3 = __udivdi3_internal");
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asm ("__moddi3 = __moddi3_internal");
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asm ("__umoddi3 = __umoddi3_internal");
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#endif
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