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On aarch64 musl gcc 14.x compiler, trying compiling elfutils 0.192 with
lto option enabled will cause null-dereference error.
Example error message:
...
elf_compress.c: In function 'elf_compress':
elf_compress.c:675:26: error: potential null pointer dereference [-Werror=null-dereference]
675 | shdr->sh_flags |= SHF_COMPRESSED;
| ^
elf_compress_gnu.c: In function 'elf_compress_gnu':
elf_compress_gnu.c:127:25: error: potential null pointer dereference [-Werror=null-dereference]
127 | shdr->sh_size = new_size;
| ^ ^
...
This is a false postive warning but will abort compilation if gcc has
`-Werror` flag. This commit add a patch for this, see the bugzilla
report below.
This commit backports a series of patches to fix some errors.
Add patch:
- 007-add-libeu-symbols-to-libelf.patch
- 008-fix-autoconf-ENABLE_IMA_VERIFICATION.patch
- 009-fix-null-dereference-with-lto.patch
Link: https://sourceware.org/bugzilla/show_bug.cgi?id=32311
Signed-off-by: Ryan Keane <the.ra2.ifv@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/16886
Signed-off-by: Robert Marko <robimarko@gmail.com>
32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From f5d6e088f84dd05278c4698a21cbf1ff4569978d Mon Sep 17 00:00:00 2001
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From: Mark Wielaard <mark@klomp.org>
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Date: Tue, 22 Oct 2024 15:03:42 +0200
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Subject: [PATCH] libelf: Add libeu objects to libelf.a static archive
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libelf might use some symbols from libeu.a, specifically the eu-search
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wrappers. But we don't ship libeu.a separately. So include the libeu
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objects in the libelf.a archive to facilitate static linking.
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* libelf/Makefile.am (libeu_objects): New variable.
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(libelf_a_LIBADD): New, add libeu_objects.
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https://sourceware.org/bugzilla/show_bug.cgi?id=32293
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Signed-off-by: Mark Wielaard <mark@klomp.org>
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---
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libelf/Makefile.am | 3 +++
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1 file changed, 3 insertions(+)
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--- a/libelf/Makefile.am
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+++ b/libelf/Makefile.am
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@@ -122,6 +122,9 @@ libelf.so: $(srcdir)/libelf.map $(libelf
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@$(textrel_check)
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$(AM_V_at)ln -fs $@ $@.$(VERSION)
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+libeu_objects = $(shell $(AR) t ../lib/libeu.a)
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+libelf_a_LIBADD = $(addprefix ../lib/,$(libeu_objects))
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+
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install: install-am libelf.so
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$(mkinstalldirs) $(DESTDIR)$(libdir)
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$(INSTALL_PROGRAM) libelf.so $(DESTDIR)$(libdir)/libelf-$(PACKAGE_VERSION).so
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