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If there is "wait" mnemonic in the line being parsed, it is incorrectly
handled by the script, and an extra line of "fwait" in
objdump_reformat's output is inserted. As insn_decoder_test relies upon
the formatted output, the test fails.
This is reproducible when disassembling with llvm-objdump:
Pre-processed lines:
ffffffff81033e72: 9b wait
ffffffff81033e73: 48 c7 c7 89 50 42 82 movq
After objdump_reformat.awk:
ffffffff81033e72: 9b fwait
ffffffff81033e72: wait
ffffffff81033e73: 48 c7 c7 89 50 42 82 movq
The regex match now accepts spaces or tabs, along with the "fwait"
instruction.
Signed-off-by: Samuel Zeter <samuelzeter@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20231129-objdump-reformat-llvm-v3-1-0d855e79314d@kernel.org
Closes: https://github.com/ClangBuiltLinux/linux/issues/1364
60c2ea7c89