path: root/scripts/decodecode
diff options
authorIvan Delalande <>2020-05-07 18:35:53 -0700
committerLinus Torvalds <>2020-05-07 19:27:20 -0700
commite08df079b23e2e982df15aa340bfbaf50f297504 (patch)
tree2b5af094e8837e7d08875b8c88c4fb70d9e7e7e9 /scripts/decodecode
parent324cfb19567c80ed71d7a02f1d5ff4621902f4c3 (diff)
scripts/decodecode: fix trapping instruction formatting
If the trapping instruction contains a ':', for a memory access through segment registers for example, the sed substitution will insert the '*' marker in the middle of the instruction instead of the line address: 2b: 65 48 0f c7 0f cmpxchg16b %gs:*(%rdi) <-- trapping instruction I started to think I had forgotten some quirk of the assembly syntax before noticing that it was actually coming from the script. Fix it to add the address marker at the right place for these instructions: 28: 49 8b 06 mov (%r14),%rax 2b:* 65 48 0f c7 0f cmpxchg16b %gs:(%rdi) <-- trapping instruction 30: 0f 94 c0 sete %al Fixes: 18ff44b189e2 ("scripts/decodecode: make faulting insn ptr more robust") Signed-off-by: Ivan Delalande <> Signed-off-by: Andrew Morton <> Reviewed-by: Borislav Petkov <> Link: Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'scripts/decodecode')
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/decodecode b/scripts/decodecode
index ba8b8d5834e6..fbdb325cdf4f 100755
--- a/scripts/decodecode
+++ b/scripts/decodecode
@@ -126,7 +126,7 @@ faultlinenum=$(( $(wc -l $T.oo | cut -d" " -f1) - \
faultline=`cat $T.dis | head -1 | cut -d":" -f2-`
faultline=`echo "$faultline" | sed -e 's/\[/\\\[/g; s/\]/\\\]/g'`
-cat $T.oo | sed -e "${faultlinenum}s/^\(.*:\)\(.*\)/\1\*\2\t\t<-- trapping instruction/"
+cat $T.oo | sed -e "${faultlinenum}s/^\([^:]*:\)\(.*\)/\1\*\2\t\t<-- trapping instruction/"
cat $T.aa