[PATCH 0/2] *** Fix reformat_objdump.awk ***
From: Samuel Zeter
Date: Wed Jan 05 2022 - 21:37:34 EST
These are two small patches which originally dealt with
the problem found at:
https://github.com/ClangBuiltLinux/linux/issues/1364
The original steps to reproduce were:
$ make -skj"$(nproc)" LLVM=1 LLVM_IAS=1 defconfig
$ scripts/config -e X86_DECODER_SELFTEST
$ make -skj"$(nproc)" LLVM=1 LLVM_IAS=1 olddefconfig bzImage
Which resulted in the error:
arch/x86/tools/insn_decoder_test: warning: objdump says 0 bytes, but
insn_get_length() says 2
Upon inspection it turned out llvm-objdump was formatting its
output differently, which caused objdump_reformat.awk to incorrectly
output its values.
After fixing that bug, a second one was seen where the instruction
"wait" was incorrectly matched with "fwait", which again caused
insn_decoder_test to fail.
Samuel Zeter (2):
arch/x86/tools/objdump_reformat.awk: Ensure regex matches fwait
arch/x86/tools/objdump_reformat.awk: Allow for spaces
arch/x86/tools/objdump_reformat.awk | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--
2.32.0