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* scripts/decodecode: Fixup trapping instruction markerBorislav Petkov2012-08-161-1/+1
| | | | | | | | | | | | | | | | | | | | When dumping "Code: " sections from an oops, the trapping instruction %rip points to can be a string copy 2b:* f3 a5 rep movsl %ds:(%rsi),%es:(%rdi) and the line contain a bunch of ":". Current "cut" selects only the and the second field output looks funnily overlaid this: 2b:* f3 a5 rep movsl %ds <-- trapping instruction:(%rsi),%es:(%rdi Fix this by selecting the remaining fields too. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: linux-kbuild@vger.kernel.org Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* scripts: decodecode: remove bashismsRabin Vincent2010-06-041-5/+5
| | | | | | | | Remove bashisms to make scripts/decodecode work with other shells. Signed-off-by: Rabin Vincent <rabin@rab.in> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* scripts: add ARM support to decodecodeRabin Vincent2010-02-021-13/+35
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for decoding ARM oopses to scripts/decodecode. The following things are handled: - ARCH and CROSS_COMPILE environment variables are respected. - The Code: in x86 oopses is in bytes, while it is in either words (4 bytes) or halfwords for ARM. - Some versions of ARM objdump refuse to disassemble instructions generated by literal constants (".word 0x..."). The workaround is to strip the object file first. - The faulting instruction is marked (liked so) in ARM, but <like so> in x86. - ARM mnemonics may include characters such as [] which need to be escaped before being passed to sed for the "<- trapping instruction" substitution. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Michal Marek <mmarek@suse.cz>
* scripts: improve the decodecode scriptArjan van de Ven2008-12-031-10/+22
| | | | | | | | | | | | | | | | | | | | | | | | kerneloops.org has been using an improved "decodecode" script, specifically it has a special marker that shows which line in the assembly the oops happened at, like this: 20: 83 e0 03 and $0x3,%eax 23: 09 d8 or %ebx,%eax 25: 85 db test %ebx,%ebx 27: 89 02 mov %eax,(%edx) 29: 74 0f je 0x3a 2b:* 3b 73 04 cmp 0x4(%ebx),%esi <-- trapping instruction 2e: 75 05 jne 0x35 30: 89 53 04 mov %edx,0x4(%ebx) 33: eb 07 jmp 0x3c 35: 89 53 08 mov %edx,0x8(%ebx) this patch updates the kernel copy to also have this functionality. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Reviewed-by: WANG Cong <wangcong@zeuux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Mark 'scripts/decodecode' executableLinus Torvalds2008-05-301-0/+0
| | | | | | .. because it is. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* kbuild: minor scripts/decodecode updateRandy Dunlap2008-01-281-2/+15
| | | | | | | | | Remove the tmp file when exiting. Noticed by Arjan van de Ven. Catch mktemp failure and exit with message. Trap kill or other signals and exit cleanly. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* doc/oops-tracing: add Code: decode infoRandy Dunlap2007-07-161-0/+51
Add info that the Code: bytes line contains <xy> or (wxyz) in some architecture oops reports and what that means. Add a script by Andi Kleen that reads the Code: line from an Oops report file and generates assembly code from the hex bytes. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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