forked from mirrors/gecko-dev
b1f3975f1d
Because it bumps the alignment requirement on aarch64, we make the elfhack test create more relocations to make the .rela.dyn section large enough for the test to pass. Differential Revision: https://phabricator.services.mozilla.com/D181684
104 lines
3.3 KiB
Bash
Executable file
104 lines
3.3 KiB
Bash
Executable file
#!/bin/bash
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set -x
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make_flags="-j$(nproc) MAKEINFO=true"
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root_dir="$1"
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cd $root_dir/binutils-source
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patch -p1 <<'EOF'
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From 4476cc67e657d6b26cd453c555a611f1ab956660 Mon Sep 17 00:00:00 2001
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From: "H.J. Lu" <hjl.tools@gmail.com>
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Date: Thu, 30 Aug 2018 09:21:57 -0700
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Subject: [PATCH] ld: Lookup section in output with the same name
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When there are more than one input sections with the same section name,
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SECNAME, linker picks the first one to define __start_SECNAME and
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__stop_SECNAME symbols. When the first input section is removed by
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comdat group, we need to check if there is still an output section
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with section name SECNAME.
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PR ld/23591
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* ldlang.c (undef_start_stop): Lookup section in output with
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the same name.
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---
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ld/ldlang.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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diff --git a/ld/ldlang.c b/ld/ldlang.c
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index 8878ccd..d644b56 100644
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--- a/ld/ldlang.c
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+++ b/ld/ldlang.c
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@@ -6097,6 +6097,24 @@ undef_start_stop (struct bfd_link_hash_entry *h)
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|| strcmp (h->u.def.section->name,
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h->u.def.section->output_section->name) != 0)
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{
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+ asection *sec = bfd_get_section_by_name (link_info.output_bfd,
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+ h->u.def.section->name);
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+ if (sec != NULL)
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+ {
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+ /* When there are more than one input sections with the same
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+ section name, SECNAME, linker picks the first one to define
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+ __start_SECNAME and __stop_SECNAME symbols. When the first
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+ input section is removed by comdat group, we need to check
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+ if there is still an output section with section name
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+ SECNAME. */
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+ asection *i;
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+ for (i = sec->map_head.s; i != NULL; i = i->map_head.s)
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+ if (strcmp (h->u.def.section->name, i->name) == 0)
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+ {
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+ h->u.def.section = i;
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+ return;
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+ }
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+ }
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h->type = bfd_link_hash_undefined;
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h->u.undef.abfd = NULL;
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}
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--
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2.17.1
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EOF
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cd ..
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TARGETS="aarch64-linux-gnu arm-linux-gnueabi i686-w64-mingw32"
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gcc_major=8
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if [ -d $MOZ_FETCHES_DIR/sysroot ]; then
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# Don't silently use a non-existing directory for C++ headers.
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[ -d $MOZ_FETCHES_DIR/sysroot/usr/include/c++/$gcc_major ] || exit 1
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export CFLAGS="-g -O2 --sysroot=$MOZ_FETCHES_DIR/sysroot"
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export CXXFLAGS="$CFLAGS -isystem $MOZ_FETCHES_DIR/sysroot/usr/include/c++/$gcc_major -isystem $MOZ_FETCHES_DIR/sysroot/usr/include/x86_64-linux-gnu/c++/$gcc_major"
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fi
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# Build target-specific GNU as ; build them first so that the few documentation
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# files they install are overwritten by the full binutils build.
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for target in $TARGETS; do
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mkdir binutils-$target
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cd binutils-$target
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../binutils-source/configure --prefix /tools/binutils/ --disable-gold --disable-ld --disable-binutils --disable-gprof --disable-nls --target=$target $EXTRA_CONFIGURE_FLAGS || exit 1
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make $make_flags || exit 1
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make install $make_flags DESTDIR=$root_dir || exit 1
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cd ..
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done
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# Build binutils
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mkdir binutils-objdir
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cd binutils-objdir
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# --enable-targets builds extra target support in ld.
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# Enabling aarch64 support brings in arm support, so we don't need to specify that too.
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../binutils-source/configure --prefix /tools/binutils/ --enable-gold --enable-plugins --disable-nls --enable-targets="$TARGETS" $EXTRA_CONFIGURE_FLAGS || exit 1
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make $make_flags || exit 1
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make install $make_flags DESTDIR=$root_dir || exit 1
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cd ..
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# Make a package of the built binutils
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cd $root_dir/tools
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tar caf $root_dir/binutils.tar.zst binutils/
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