uprobes/x86: Add comment with insn opcodes, mnemonics and why we dont support them

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After adding these, it's clear we have some awkward choices
there. Some valid instructions are prohibited from uprobing
while several invalid ones are allowed.

Hopefully future edits to the good-opcode tables will fix wrong
bits or explain why those bits are not wrong.

No actual code changes.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1423768732-32194-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

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Denys Vlasenko 2015-02-12 20:18:50 +01:00 • committed by Ingo Molnar

parent e07e0d4cb0

commit 097f4e5e83

1 changed files with 134 additions and 19 deletions

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arch/x86/kernel/uprobes.c

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