diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/arm/Kconfig.debug | 11 | ||||
| -rw-r--r-- | arch/arm/kernel/traps.c | 8 |
2 files changed, 16 insertions, 3 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 98436702e0c7..07055a503022 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -81,6 +81,17 @@ endchoice config ARM_UNWIND bool +config BACKTRACE_VERBOSE + bool "Verbose backtrace" + depends on EXPERT + help + When the kernel produces a warning or oops, the kernel prints a + trace of the call chain. This option controls whether we include + the numeric addresses or only include the symbolic information. + + In most cases, say N here, unless you are intending to debug the + kernel and have access to the kernel binary image. + config FRAME_POINTER bool diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 195dff58bafc..c5e25cf7219b 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -67,12 +67,14 @@ void dump_backtrace_entry(unsigned long where, unsigned long from, { unsigned long end = frame + 4 + sizeof(struct pt_regs); -#ifdef CONFIG_KALLSYMS +#ifndef CONFIG_KALLSYMS + printk("%sFunction entered at [<%08lx>] from [<%08lx>]\n", + loglvl, where, from); +#elif defined CONFIG_BACKTRACE_VERBOSE printk("%s[<%08lx>] (%ps) from [<%08lx>] (%pS)\n", loglvl, where, (void *)where, from, (void *)from); #else - printk("%sFunction entered at [<%08lx>] from [<%08lx>]\n", - loglvl, where, from); + printk("%s %ps from %pS\n", loglvl, (void *)where, (void *)from); #endif if (in_entry_text(from) && end <= ALIGN(frame, THREAD_SIZE)) |