[PATCH v3 2/3] x86/tools: objdump_reformat.awk: Allow for spaces

[Nathan Chancellor]

From: Samuel Zeter <samuelzeter@xxxxxxxxx>

GNU objdump and LLVM objdump have differing output formats.
Specifically, GNU objump will format its output as: address:<tab>hex,
whereas LLVM objdump displays its output as address:<space>hex.

objdump_reformat.awk incorrectly handles this discrepancy due to
the unexpected space and as a result insn_decoder_test fails, as
its input is garbled.

The instruction line being tokenized now handles a space and colon,
or tab delimiter.

Closes: https://github.com/ClangBuiltLinux/linux/issues/1364
Acked-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Tested-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Tested-by: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Samuel Zeter <samuelzeter@xxxxxxxxx>
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
---
 arch/x86/tools/objdump_reformat.awk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/tools/objdump_reformat.awk b/arch/x86/tools/objdump_reformat.awk
index 276e572a6f60..a4120d907277 100644
--- a/arch/x86/tools/objdump_reformat.awk
+++ b/arch/x86/tools/objdump_reformat.awk
@@ -22,7 +22,7 @@ BEGIN {
 }
 
 /^ *[0-9a-f]+:/ {
-	if (split($0, field, "\t") < 3) {
+	if (split($0, field, /: |\t/) < 3) {
 		# This is a continuation of the same insn.
 		prev_hex = prev_hex field[2]
 	} else {

-- 
2.43.0