Messages in this thread Patch in this message | | | From | Borislav Petkov <> | Subject | [PATCH 5/9] x86/dumpstack: Add loglevel argument to show_opcodes() | Date | Tue, 17 Apr 2018 18:11:20 +0200 |
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From: Borislav Petkov <bp@suse.de>
Will be used in the next patch.
Signed-off-by: Borislav Petkov <bp@suse.de> --- arch/x86/include/asm/stacktrace.h | 1 + arch/x86/kernel/dumpstack.c | 6 +++--- 2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h index 133d9425fced..0630eeb18bbc 100644 --- a/arch/x86/include/asm/stacktrace.h +++ b/arch/x86/include/asm/stacktrace.h @@ -111,4 +111,5 @@ static inline unsigned long caller_frame_pointer(void) return (unsigned long)frame; } +void show_opcodes(u8 *rip, const char *loglvl); #endif /* _ASM_X86_STACKTRACE_H */ diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 1d6698b54527..1592d0c3ebb5 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -70,14 +70,14 @@ static void printk_stack_address(unsigned long address, int reliable, printk("%s %s%pB\n", log_lvl, reliable ? "" : "? ", (void *)address); } -static void show_opcodes(u8 *rip) +void show_opcodes(u8 *rip, const char *loglvl) { unsigned int code_prologue = OPCODE_BUFSIZE * 2 / 3; u8 opcodes[OPCODE_BUFSIZE]; u8 *ip; int i; - printk(KERN_DEFAULT "Code: "); + printk("%sCode: ", loglvl); ip = (u8 *)rip - code_prologue; if (probe_kernel_read(opcodes, ip, OPCODE_BUFSIZE)) { @@ -401,6 +401,6 @@ void show_regs(struct pt_regs *regs) if (regs->ip < PAGE_OFFSET) printk(KERN_DEFAULT "Code: Bad RIP value.\n"); else - show_opcodes((u8 *)regs->ip); + show_opcodes((u8 *)regs->ip, KERN_DEFAULT); } } -- 2.13.0
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