diff options
Diffstat (limited to 'patches/eglibc/2_16')
| -rw-r--r-- | patches/eglibc/2_16/001-Avoid-use-of-libgcc_s-and-libgcc_eh-when-building-gl.patch | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/patches/eglibc/2_16/001-Avoid-use-of-libgcc_s-and-libgcc_eh-when-building-gl.patch b/patches/eglibc/2_16/001-Avoid-use-of-libgcc_s-and-libgcc_eh-when-building-gl.patch deleted file mode 100644 index 5dd6941..0000000 --- a/patches/eglibc/2_16/001-Avoid-use-of-libgcc_s-and-libgcc_eh-when-building-gl.patch +++ /dev/null @@ -1,322 +0,0 @@ -Upstream-Status: Backport -Signed-off-by: Khem Raj <raj.khem@gmail.com> - -From 95f5a9a866695da4e038aa4e6ccbbfd5d9cf63b7 Mon Sep 17 00:00:00 2001 -From: Joseph Myers <joseph@codesourcery.com> -Date: Tue, 3 Jul 2012 19:14:59 +0000 -Subject: [PATCH] Avoid use of libgcc_s and libgcc_eh when building glibc. - ---- - ChangeLog | 47 ++++++++++++++++++++++++++++++ - Makeconfig | 68 ++++++++++++++++++++++++++++++++++++++------ - Rules | 45 ++++++++++++++++++++++------- - elf/Makefile | 6 +++- - elf/static-stubs.c | 46 ++++++++++++++++++++++++++++++ - ports/ChangeLog.arm | 7 +++++ - ports/sysdeps/arm/Makefile | 8 ++++++ - 7 files changed, 206 insertions(+), 21 deletions(-) - create mode 100644 elf/static-stubs.c - -Index: a/Makeconfig -=================================================================== ---- a/Makeconfig 2012-07-04 18:26:22.000000000 -0700 -+++ b/Makeconfig 2012-08-14 20:16:10.197093639 -0700 -@@ -415,9 +415,9 @@ - LDFLAGS-rtld += $(hashstyle-LDFLAGS) - endif - --# Command for linking programs with the C library. -+# Commands for linking programs with the C library. - ifndef +link --+link = $(CC) -nostdlib -nostartfiles -o $@ \ -++link-before-libc = $(CC) -nostdlib -nostartfiles -o $@ \ - $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \ - $(combreloc-LDFLAGS) $(relro-LDFLAGS) $(hashstyle-LDFLAGS) \ - $(addprefix $(csu-objpfx),$(start-installed-name)) \ -@@ -426,7 +426,10 @@ - $(start-installed-name))\ - $(+preinit) $(link-extra-libs) \ - $(common-objpfx)libc% $(+postinit),$^) \ -- $(link-extra-libs) $(link-libc) $(+postctor) $(+postinit) -+ $(link-extra-libs) -++link-after-libc = $(+postctor) $(+postinit) -++link = $(+link-before-libc) $(link-libc) $(+link-after-libc) -++link-tests = $(+link-before-libc) $(link-libc-tests) $(+link-after-libc) - endif - # Command for linking PIE programs with the C library. - ifndef +link-pie -@@ -443,7 +446,7 @@ - endif - # Command for statically linking programs with the C library. - ifndef +link-static --+link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \ -++link-static-before-libc = $(CC) -nostdlib -nostartfiles -static -o $@ \ - $(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \ - $(addprefix $(csu-objpfx),$(static-start-installed-name)) \ - $(+preinit) $(+prector) \ -@@ -451,7 +454,12 @@ - $(start-installed-name))\ - $(+preinit) $(link-extra-libs-static) \ - $(common-objpfx)libc% $(+postinit),$^) \ -- $(link-extra-libs-static) $(link-libc-static) $(+postctor) $(+postinit) -+ $(link-extra-libs-static) $(link-libc-static) -++link-static-after-libc = $(+postctor) $(+postinit) -++link-static = $(+link-static-before-libc) $(link-libc-static) \ -+ $(+link-static-after-libc) -++link-static-tests = $(+link-static-before-libc) $(link-libc-static-tests) \ -+ $(+link-static-after-libc) - endif - # Command for statically linking bounded-pointer programs with the C library. - ifndef +link-bounded -@@ -475,10 +483,12 @@ - # We need the versioned name of libc.so in the deps of $(others) et al - # so that the symlink to libc.so is created before anything tries to - # run the linked programs. --link-libc = -Wl,-rpath-link=$(rpath-link) \ -+link-libc-before-gnulib = -Wl,-rpath-link=$(rpath-link) \ - $(common-objpfx)libc.so$(libc.so-version) \ - $(common-objpfx)$(patsubst %,$(libtype.oS),c) \ -- $(as-needed) $(common-objpfx)elf/ld.so $(no-as-needed) $(gnulib) -+ $(as-needed) $(common-objpfx)elf/ld.so $(no-as-needed) -+link-libc = $(link-libc-before-gnulib) $(gnulib) -+link-libc-tests = $(link-libc-before-gnulib) $(gnulib-tests) - # This is how to find at build-time things that will be installed there. - rpath-dirs = math elf dlfcn nss nis rt resolv crypt - rpath-link = \ -@@ -488,6 +498,7 @@ - nssobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)nss) - resolvobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)resolv) - link-libc = $(common-objpfx)libc.a $(otherlibs) $(gnulib) $(common-objpfx)libc.a $(gnulib) -+link-libc-tests = $(common-objpfx)libc.a $(otherlibs) $(gnulib-tests) $(common-objpfx)libc.a $(gnulib-tests) - endif - endif - -@@ -513,8 +524,43 @@ - - # The static libraries. - link-libc-static = -Wl,--start-group $(common-objpfx)libc.a $(static-gnulib) -Wl,--end-group -+link-libc-static-tests = -Wl,--start-group $(common-objpfx)libc.a $(static-gnulib-tests) -Wl,--end-group - link-libc-bounded = $(common-objpfx)libc_b.a $(gnulib) $(common-objpfx)libc_b.a - -+# How to link against libgcc. Some libgcc functions, such as those -+# for "long long" arithmetic or software floating point, can always be -+# built without use of C library headers and do not have any global -+# state so can safely be linked statically into any executable or -+# shared library requiring them; these functions are in libgcc.a. -+# Other functions, relating to exception handling, may require C -+# library headers to build and it may not be safe to have more than -+# one copy of them in a process; these functions are only in -+# libgcc_s.so and libgcc_eh.a. -+# -+# To avoid circular dependencies when bootstrapping, it is desirable -+# to avoid use of libgcc_s and libgcc_eh in building glibc. Where any -+# glibc functionality (in particular, thread cancellation) requires -+# exception handling, this is implemented through dlopen of libgcc_s -+# to avoid unnecessary dependencies on libgcc_s by programs not using -+# that functionality; executables built with glibc do not use -+# exception handling other than through thread cancellation. -+# -+# Undefined references to functions from libgcc_eh or libgcc_s may -+# arise for code built with -fexceptions. In the case of statically -+# linked programs installed by glibc, unwinding will never actually -+# occur at runtime and the use of elf/static-stubs.c to resolve these -+# references is safe. In the case of statically linked test programs -+# and test programs built with -fexceptions, unwinding may occur in -+# some cases and it is preferable to link with libgcc_eh or libgcc_s -+# so that the testing is as similar as possible to how programs will -+# be built with the installed glibc. -+# -+# Some architectures have architecture-specific systems for exception -+# handling that may involve undefined references to -+# architecture-specific functions. On those architectures, -+# gnulib-arch and static-gnulib-arch may be defined in sysdeps -+# makefiles to use additional libraries for linking executables and -+# shared libraries built by glibc. - ifndef gnulib - ifneq ($(have-cc-with-libunwind),yes) - libunwind = -@@ -522,8 +568,12 @@ - libunwind = -lunwind - endif - libgcc_eh := -Wl,--as-needed -lgcc_s $(libunwind) -Wl,--no-as-needed --gnulib := -lgcc $(libgcc_eh) --static-gnulib := -lgcc -lgcc_eh $(libunwind) -+gnulib-arch = -+gnulib = -lgcc $(gnulib-arch) -+gnulib-tests := -lgcc $(libgcc_eh) -+static-gnulib-arch = -+static-gnulib = -lgcc $(static-gnulib-arch) -+static-gnulib-tests := -lgcc -lgcc_eh $(libunwind) - libc.so-gnulib := -lgcc - endif - +preinit = $(addprefix $(csu-objpfx),crti.o) -Index: a/Rules -=================================================================== ---- a/Rules 2012-07-04 18:25:47.000000000 -0700 -+++ b/Rules 2012-08-14 20:16:10.197093639 -0700 -@@ -1,5 +1,4 @@ --# Copyright (C) 1991-2000,2002,2003,2004,2005,2006,2011 --# Free Software Foundation, Inc. -+# Copyright (C) 1991-2012 Free Software Foundation, Inc. - # This file is part of the GNU C Library. - - # The GNU C Library is free software; you can redistribute it and/or -@@ -103,29 +102,46 @@ - # eglibc: endif - - ifeq ($(build-programs),yes) --binaries-all = $(others) $(sysdep-others) $(tests) $(xtests) $(test-srcs) --binaries-static = $(others-static) $(tests-static) $(xtests-static) -+binaries-all-notests = $(others) $(sysdep-others) -+binaries-all-tests = $(tests) $(xtests) $(test-srcs) -+binaries-all = $(binaries-all-notests) $(binaries-all-tests) -+binaries-static-notests = $(others-static) -+binaries-static-tests = $(tests-static) $(xtests-static) -+binaries-static = $(binaries-static-notests) $(binaries-static-tests) - ifeq (yesyes,$(have-fpie)$(build-shared)) - binaries-pie = $(others-pie) $(tests-pie) $(xtests-pie) - else - binaries-pie = - endif - else --binaries-all = $(tests) $(xtests) $(test-srcs) -+binaries-all-notests = -+binaries-all-tests = $(tests) $(xtests) $(test-srcs) -+binaries-all = $(binaries-all-tests) -+binaries-static-notests = -+binaries-static-tests = - binaries-static = - binaries-pie = - endif - --binaries-shared = $(filter-out $(binaries-pie) $(binaries-static), \ -- $(binaries-all)) -+binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \ -+ $(binaries-all-tests)) -+binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \ -+ $(binaries-all-notests)) - --ifneq "$(strip $(binaries-shared))" "" --$(addprefix $(objpfx),$(binaries-shared)): %: %.o \ -+ifneq "$(strip $(binaries-shared-notests))" "" -+$(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \ - $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \ - $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit) - $(+link) - endif - -+ifneq "$(strip $(binaries-shared-tests))" "" -+$(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \ -+ $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \ -+ $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit) -+ $(+link-tests) -+endif -+ - ifneq "$(strip $(binaries-pie))" "" - $(addprefix $(objpfx),$(binaries-pie)): %: %.o \ - $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \ -@@ -133,13 +149,20 @@ - $(+link-pie) - endif - --ifneq "$(strip $(binaries-static))" "" --$(addprefix $(objpfx),$(binaries-static)): %: %.o \ -+ifneq "$(strip $(binaries-static-notests))" "" -+$(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \ - $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \ - $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit) - $(+link-static) - endif - -+ifneq "$(strip $(binaries-static-tests))" "" -+$(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \ -+ $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \ -+ $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit) -+ $(+link-static-tests) -+endif -+ - ifeq ($(build-bounded),yes) - binaries-bounded = $(addsuffix -bp,$(tests) $(xtests) $(test-srcs)) - $(addprefix $(objpfx),$(binaries-bounded)): %-bp: %.ob \ -Index: a/elf/Makefile -=================================================================== ---- a/elf/Makefile 2012-07-04 18:26:34.000000000 -0700 -+++ b/elf/Makefile 2012-08-14 20:16:10.197093639 -0700 -@@ -71,6 +71,8 @@ - install-bin = sprof pldd - others-static = sln - install-rootsbin = sln -+sln-modules := static-stubs -+extra-objs += $(sln-modules:=.o) - - ifeq (yes,$(use-ldconfig)) - ifeq (yes,$(build-shared)) -@@ -78,7 +80,7 @@ - others += ldconfig - install-rootsbin += ldconfig - --ldconfig-modules := cache readlib xmalloc xstrdup chroot_canon -+ldconfig-modules := cache readlib xmalloc xstrdup chroot_canon static-stubs - extra-objs += $(ldconfig-modules:=.o) - endif - endif -@@ -417,6 +419,8 @@ - - $(objpfx)sprof: $(libdl) - -+$(objpfx)sln: $(sln-modules:%=$(objpfx)%.o) -+ - $(objpfx)ldconfig: $(ldconfig-modules:%=$(objpfx)%.o) - - $(objpfx)pldd: $(pldd-modules:%=$(objpfx)%.o) -Index: a/elf/static-stubs.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ a/elf/static-stubs.c 2012-08-14 20:16:10.197093639 -0700 -@@ -0,0 +1,46 @@ -+/* Stub implementations of functions to link into statically linked -+ programs without needing libgcc_eh. -+ Copyright (C) 2012 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 Lesser General Public -+ License as published by the Free Software Foundation; either -+ version 2.1 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 -+ Lesser General Public License for more details. -+ -+ You should have received a copy of the GNU Lesser General Public -+ License along with the GNU C Library; if not, see -+ <http://www.gnu.org/licenses/>. */ -+ -+/* Avoid backtrace (and so _Unwind_Backtrace) dependencies from -+ sysdeps/unix/sysv/linux/libc_fatal.c. */ -+#include <sysdeps/posix/libc_fatal.c> -+ -+#include <stdlib.h> -+#include <unwind.h> -+ -+/* These programs do not use thread cancellation, so _Unwind_Resume -+ and the personality routine are never actually called. */ -+ -+void -+_Unwind_Resume (struct _Unwind_Exception *exc __attribute__ ((unused))) -+{ -+ abort (); -+} -+ -+_Unwind_Reason_Code -+__gcc_personality_v0 (int version __attribute__ ((unused)), -+ _Unwind_Action actions __attribute__ ((unused)), -+ _Unwind_Exception_Class exception_class -+ __attribute__ ((unused)), -+ struct _Unwind_Exception *ue_header -+ __attribute__ ((unused)), -+ struct _Unwind_Context *context __attribute__ ((unused))) -+{ -+ abort (); -+} |