diff options
Diffstat (limited to 'etc/patches/gcc-14/reproducibility/0004-compute-reproducible-checksums.patch')
| -rw-r--r-- | etc/patches/gcc-14/reproducibility/0004-compute-reproducible-checksums.patch | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/etc/patches/gcc-14/reproducibility/0004-compute-reproducible-checksums.patch b/etc/patches/gcc-14/reproducibility/0004-compute-reproducible-checksums.patch new file mode 100644 index 0000000..ad18a34 --- /dev/null +++ b/etc/patches/gcc-14/reproducibility/0004-compute-reproducible-checksums.patch @@ -0,0 +1,75 @@ +From 3d2d2999d07cd7425e6a8a96047e72ebbc842ea0 Mon Sep 17 00:00:00 2001 +From: Oliver Reiche <oliver.reiche@huawei.com> +Date: Mon, 21 Aug 2023 18:03:56 +0200 +Subject: [PATCH 4/5] Compute reproducible checksums + +... for variable toolchain paths: +* remove linker path from gcc's checksum-options +* disable thin archives (for stripping libbackend.a) +* strip debug info before computing checksums +For removing the linker path, the user needs to set +"BUILD_ROOT_DIR" before building. +--- + gcc/Makefile.in | 3 ++- + gcc/c/Make-lang.in | 6 +++++- + gcc/cp/Make-lang.in | 6 +++++- + 3 files changed, 12 insertions(+), 3 deletions(-) + +diff --git a/gcc/Makefile.in b/gcc/Makefile.in +index 2e656c540..9da99cb5c 100644 +--- a/gcc/Makefile.in ++++ b/gcc/Makefile.in +@@ -321,7 +321,7 @@ USE_THIN_ARCHIVES = no + ifeq ($(THIN_ARCHIVE_SUPPORT),yes) + ifeq ($(AR_FLAGS),rc) + ifeq ($(RANLIB_FLAGS),) +-USE_THIN_ARCHIVES = yes ++#USE_THIN_ARCHIVES = yes + endif + endif + endif +@@ -2273,6 +2273,7 @@ gcc-cross$(exeext): xgcc$(exeext) + + checksum-options: + echo "$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS)" > checksum-options.tmp \ ++ && sed -i 's|'$${BUILD_ROOT_DIR:-/nonexistent}'|/build|g' checksum-options.tmp \ + && $(srcdir)/../move-if-change checksum-options.tmp checksum-options + + # +diff --git a/gcc/c/Make-lang.in b/gcc/c/Make-lang.in +index 905ab9e79..583eb1cac 100644 +--- a/gcc/c/Make-lang.in ++++ b/gcc/c/Make-lang.in +@@ -77,7 +77,11 @@ cc1-checksum.cc : build/genchecksum$(build_exeext) checksum-options \ + && cmp -s ../stage_current ../stage_final; then \ + cp ../prev-gcc/cc1-checksum.cc cc1-checksum.cc; \ + else \ +- build/genchecksum$(build_exeext) $(C_OBJS) $(BACKEND) $(LIBDEPS) \ ++ rm -rf stripped_c_checksum_inputs; \ ++ mkdir stripped_c_checksum_inputs; \ ++ cp $(C_OBJS) $(BACKEND) $(LIBDEPS) stripped_c_checksum_inputs/; \ ++ $(STRIP_FOR_TARGET) -g stripped_c_checksum_inputs/*; \ ++ build/genchecksum$(build_exeext) $$(ls stripped_c_checksum_inputs/* | LC_ALL=C sort) \ + checksum-options > cc1-checksum.cc.tmp && \ + $(srcdir)/../move-if-change cc1-checksum.cc.tmp cc1-checksum.cc; \ + fi +diff --git a/gcc/cp/Make-lang.in b/gcc/cp/Make-lang.in +index f153891a1..52cc5d33c 100644 +--- a/gcc/cp/Make-lang.in ++++ b/gcc/cp/Make-lang.in +@@ -135,7 +135,11 @@ cc1plus-checksum.cc : build/genchecksum$(build_exeext) checksum-options \ + && cmp -s ../stage_current ../stage_final; then \ + cp ../prev-gcc/cc1plus-checksum.cc cc1plus-checksum.cc; \ + else \ +- build/genchecksum$(build_exeext) $(CXX_OBJS) $(BACKEND) $(CODYLIB) $(LIBDEPS) \ ++ rm -rf stripped_cp_checksum_inputs; \ ++ mkdir stripped_cp_checksum_inputs; \ ++ cp $(CXX_OBJS) $(BACKEND) $(CODYLIB) $(LIBDEPS) stripped_cp_checksum_inputs; \ ++ $(STRIP_FOR_TARGET) -g stripped_cp_checksum_inputs/*; \ ++ build/genchecksum$(build_exeext) $$(ls stripped_cp_checksum_inputs/* | LC_ALL=C sort) \ + checksum-options > cc1plus-checksum.cc.tmp && \ + $(srcdir)/../move-if-change cc1plus-checksum.cc.tmp cc1plus-checksum.cc; \ + fi +-- +2.30.2 + |