Messages in this thread Patch in this message | | | From | Borislav Petkov <> | Subject | [RFC PATCH 2/4] x86/alternatives: Print containing function | Date | Tue, 11 Dec 2018 23:23:24 +0100 |
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From: Borislav Petkov <bp@suse.de>
... in the "debug-alternative" output so that one can find her way easier when staring at the vmlinux disassembly.
For example:
apply_alternatives: feat: 3*32+18, old: (read_tsc+0x0/0x10 (ffffffff8101d1c0) len: 5), repl: (ffffffff824e6d33, len: 5) ^^^^^^^^^^^^^^^^^ ffffffff8101d1c0: old_insn: 0f 31 90 90 90 ffffffff824e6d33: rpl_insn: 0f ae e8 0f 31 ffffffff8101d1c0: final_insn: 0f ae e8 0f 31
No functional changes.
Signed-off-by: Borislav Petkov <bp@suse.de> --- arch/x86/kernel/alternative.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index ebeac487a20c..d458c7973c56 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -393,10 +393,10 @@ void __init_or_module noinline apply_alternatives(struct alt_instr *start, continue; } - DPRINTK("feat: %d*32+%d, old: (%px len: %d), repl: (%px, len: %d), pad: %d", + DPRINTK("feat: %d*32+%d, old: (%pS (%px) len: %d), repl: (%px, len: %d), pad: %d", a->cpuid >> 5, a->cpuid & 0x1f, - instr, a->instrlen, + instr, instr, a->instrlen, replacement, a->replacementlen, a->padlen); DUMP_BYTES(instr, a->instrlen, "%px: old_insn: ", instr); -- 2.19.1
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