diff mbox series

[003/262] scripts/decodecode: fix faulting instruction no print when opps.file is DOS format

Message ID 20211105203442.uBhwndE3D%akpm@linux-foundation.org (mailing list archive)
State New
Headers show
Series [001/262] scripts/spelling.txt: add more spellings to spelling.txt | expand

Commit Message

Andrew Morton Nov. 5, 2021, 8:34 p.m. UTC 
From: weidonghui <weidonghui@allwinnertech.com>
Subject: scripts/decodecode: fix faulting instruction no print when opps.file is DOS format

If opps.file is in DOS format, faulting instruction cannot be printed:
/ # ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-
/ # ./scripts/decodecode < oops.file
[ 0.734345] Code: d0002881 912f9c21 94067e68 d2800001 (b900003f)
aarch64-linux-gnu-strip: '/tmp/tmp.5Y9eybnnSi.o': No such file
aarch64-linux-gnu-objdump: '/tmp/tmp.5Y9eybnnSi.o': No such file
All code
========
   0:   d0002881        adrp    x1, 0x512000
   4:   912f9c21        add     x1, x1, #0xbe7
   8:   94067e68        bl      0x19f9a8
   c:   d2800001        mov     x1, #0x0                        // #0
  10:   b900003f        str     wzr, [x1]

Code starting with the faulting instruction
===========================================

Background: The compilation environment is Ubuntu, and the test
environment is Windows.  Most logs are generated in the Windows
environment.  In this way, CR (carriage return) will inevitably appear,
which will affect the use of decodecode in the Ubuntu environment.

The repaired effect is as follows:

/ # ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-
/ # ./scripts/decodecode < oops.file
[ 0.734345] Code: d0002881 912f9c21 94067e68 d2800001 (b900003f)
All code
========
   0:   d0002881        adrp    x1, 0x512000
   4:   912f9c21        add     x1, x1, #0xbe7
   8:   94067e68        bl      0x19f9a8
   c:   d2800001        mov     x1, #0x0                        // #0
  10:*  b900003f        str     wzr, [x1]               <-- trapping instruction

Code starting with the faulting instruction
===========================================
   0:   b900003f        str     wzr, [x1]

Link: https://lkml.kernel.org/r/20211008064712.926-1-weidonghui@allwinnertech.com
Signed-off-by: weidonghui <weidonghui@allwinnertech.com>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: Marc Zyngier <maz@misterjones.org>
Cc: Will Deacon <will@kernel.org>
Cc: Rabin Vincent <rabin@rab.in>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 scripts/decodecode |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/scripts/decodecode~scripts-decodecode-fix-faulting-instruction-no-print-when-oppsfile-is-dos-format
+++ a/scripts/decodecode
@@ -126,7 +126,7 @@  if [ $marker -ne 0 ]; then
 fi
 echo Code starting with the faulting instruction  > $T.aa
 echo =========================================== >> $T.aa
-code=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g; s/[>)]$//'`
+code=`echo $code | sed -e 's/\r//;s/ [<(]/ /;s/[>)] / /;s/ /,0x/g; s/[>)]$//'`
 echo -n "	.$type 0x" > $T.s
 echo $code >> $T.s
 disas $T 0