From a4cff7a0612fccb0e32529a10e53a836fa12d634 Mon Sep 17 00:00:00 2001 From: Alexey Neyman Date: Wed, 9 Feb 2022 17:02:35 -0800 Subject: [PATCH] glibc-2.12.1: backport a fix for 2-pass build Otherwise, it tries to link against libgcc_eh which is not available until the final compiler (or previously, the pass-2 compiler) is built. Signed-off-by: Alexey Neyman --- .../2.12.1/0009-do-not-use-libgcc_eh.patch | 31 ++ .../2.12.1/0050-do-not-use-libgcc_eh.patch | 292 ++++++++++++++++++ 2 files changed, 323 insertions(+) create mode 100644 packages/glibc-ports/2.12.1/0009-do-not-use-libgcc_eh.patch create mode 100644 packages/glibc/2.12.1/0050-do-not-use-libgcc_eh.patch diff --git a/packages/glibc-ports/2.12.1/0009-do-not-use-libgcc_eh.patch b/packages/glibc-ports/2.12.1/0009-do-not-use-libgcc_eh.patch new file mode 100644 index 00000000..dc746c48 --- /dev/null +++ b/packages/glibc-ports/2.12.1/0009-do-not-use-libgcc_eh.patch @@ -0,0 +1,31 @@ +commit 95f5a9a866695da4e038aa4e6ccbbfd5d9cf63b7 +Author: Joseph Myers +Date: Tue Jul 3 19:14:59 2012 +0000 + + Avoid use of libgcc_s and libgcc_eh when building glibc. + +--- + sysdeps/arm/eabi/Makefile | 8 ++++++++ + 1 file changed, 8 insertions(+) + +--- a/sysdeps/arm/eabi/Makefile ++++ b/sysdeps/arm/eabi/Makefile +@@ -1,3 +1,6 @@ ++gnulib-arch = $(elfobjdir)/libgcc-stubs.a ++static-gnulib-arch = $(elfobjdir)/libgcc-stubs.a ++ + ifeq ($(subdir),csu) + aeabi_constants = aeabi_lcsts aeabi_sighandlers aeabi_math + aeabi_routines = aeabi_assert aeabi_localeconv aeabi_errno_addr \ +@@ -24,6 +27,11 @@ + sysdep_routines += aeabi_unwind_cpp_pr1 find_exidx + shared-only-routines += aeabi_unwind_cpp_pr1 + sysdep-rtld-routines += aeabi_unwind_cpp_pr1 ++ ++$(objpfx)libgcc-stubs.a: $(objpfx)aeabi_unwind_cpp_pr1.os ++ $(build-extra-lib) ++ ++lib-noranlib: $(objpfx)libgcc-stubs.a + endif + + ifeq ($(subdir),math) diff --git a/packages/glibc/2.12.1/0050-do-not-use-libgcc_eh.patch b/packages/glibc/2.12.1/0050-do-not-use-libgcc_eh.patch new file mode 100644 index 00000000..08192b35 --- /dev/null +++ b/packages/glibc/2.12.1/0050-do-not-use-libgcc_eh.patch @@ -0,0 +1,292 @@ +commit 95f5a9a866695da4e038aa4e6ccbbfd5d9cf63b7 +Author: Joseph Myers +Date: Tue Jul 3 19:14:59 2012 +0000 + + Avoid use of libgcc_s and libgcc_eh when building glibc. + +--- + Makeconfig | 69 ++++++++++++++++++++++++++++++++++++++++++++++------- + Rules | 39 +++++++++++++++++++++++------ + elf/Makefile | 6 +++- + elf/static-stubs.c | 46 +++++++++++++++++++++++++++++++++++ + 4 files changed, 142 insertions(+), 18 deletions(-) + +--- a/Makeconfig ++++ b/Makeconfig +@@ -429,9 +429,9 @@ + 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)) \ +@@ -440,7 +440,10 @@ + $(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 +@@ -457,7 +460,7 @@ + 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) \ +@@ -465,7 +468,12 @@ + $(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 +@@ -490,10 +498,12 @@ + # 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 + endif +@@ -504,6 +514,7 @@ + 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 $(gnulib-tests) + endif + endif + +@@ -532,14 +543,50 @@ + # The static libraries. + ifeq (yes,$(build-static)) + link-libc-static = $(common-objpfx)libc.a $(static-gnulib) $(otherlibs) $(common-objpfx)libc.a ++link-libc-static-tests = $(common-objpfx)libc.a $(static-gnulib-tests) $(otherlibs) $(common-objpfx)libc.a + else + ifeq (yes,$(build-shared)) + # We can try to link the programs with lib*_pic.a... + link-libc-static = $(static-gnulib) $(common-objpfx)libc_pic.a ++link-libc-static-tests = $(static-gnulib-tests) $(common-objpfx)libc_pic.a + endif + endif + 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 = +@@ -551,8 +598,12 @@ + else + libgcc_eh := -Wl,--as-needed -lgcc_s$(libgcc_s_suffix) $(libunwind) -Wl,--no-as-needed + endif +-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 $(libunwind) + libc.so-gnulib := -lgcc + endif + ifeq ($(elf),yes) +--- a/Rules ++++ b/Rules +@@ -104,29 +104,52 @@ + 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) + 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 = + endif + +-binaries-shared = $(filter-out $(binaries-static), $(binaries-all)) ++binaries-shared-tests = $(filter-out $(binaries-static), $(binaries-all-tests)) ++binaries-shared-notests = $(filter-out $(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 $(binaries-static))" "" +-$(addprefix $(objpfx),$(binaries-static)): %: %.o \ ++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 $(binaries-static-notests))" "" ++$(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 \ +--- a/elf/Makefile ++++ b/elf/Makefile +@@ -157,6 +157,8 @@ + install-bin = sprof + others-static = sln + install-rootsbin = sln ++sln-modules := static-stubs ++extra-objs += $(sln-modules:=.o) + + ifeq (yes,$(use-ldconfig)) + ifeq (yes,$(build-shared)) +@@ -164,7 +166,7 @@ + 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) + + # To find xmalloc.c and xstrdup.c +@@ -455,6 +457,8 @@ + + $(objpfx)sprof: $(libdl) + ++$(objpfx)sln: $(sln-modules:%=$(objpfx)%.o) ++ + $(objpfx)ldconfig: $(ldconfig-modules:%=$(objpfx)%.o) + SYSCONF-FLAGS := -D'SYSCONFDIR="$(sysconfdir)"' + CFLAGS-ldconfig.c = $(SYSCONF-FLAGS) -D'LIBDIR="$(libdir)"' \ +--- /dev/null ++++ b/elf/static-stubs.c +@@ -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 ++ . */ ++ ++/* Avoid backtrace (and so _Unwind_Backtrace) dependencies from ++ sysdeps/unix/sysv/linux/libc_fatal.c. */ ++#include ++ ++#include ++#include ++ ++/* 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 (); ++}