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- Fix objtool build error on systems where libopcodes is

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present, but development headers (binutils-dev) are not
    (Ulises Mendez Martinez)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fix from Ingo Molnar:

 - Fix objtool build error on systems where libopcodes is
   present, but development headers (binutils-dev) are not
   (Ulises Mendez Martinez)

* tag 'objtool-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Validate disassembler headers in libopcodes probe
This commit is contained in:
Linus Torvalds 2026-09-20 08:41:19 -07:00
commit 2f7ff5f547
1 changed files with 5 additions and 3 deletions
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8
tools/objtool/Makefile
View File

@ -89,9 +89,11 @@ LIBOPCODES_LIBS := $(shell \
"-lopcodes -lbfd" \
"-lopcodes -lbfd -liberty" \
"-lopcodes -lbfd -liberty -lz"; do \
echo 'extern void disassemble_init_for_target(void *);' \
'int main(void) { disassemble_init_for_target(0); return 0; }' | \
$(HOSTCC) -xc - -o /dev/null $$libs 2>/dev/null && \
printf '%s\n' \
'$(pound)include <bfd.h>' \
'$(pound)include <dis-asm.h>' \
'int main(void) { disassemble_init_for_target(0); return 0; }' | \
$(HOSTCC) $(HOSTCFLAGS) -DPACKAGE='"objtool"' -xc - -o /dev/null $$libs 2>/dev/null && \
echo "$$libs" && break; \
done)