diff options
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index fb7049c054c..8ede428e76c 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -33,6 +33,7 @@ #include <linux/mqueue.h> #include <linux/hardirq.h> #include <linux/utsname.h> +#include <linux/ftrace.h> #include <linux/kernel_stat.h> #include <asm/pgtable.h> @@ -1008,6 +1009,14 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) unsigned long sp, ip, lr, newsp; int count = 0; int firstframe = 1; +#ifdef CONFIG_FUNCTION_GRAPH_TRACER + int curr_frame = current->curr_ret_stack; + extern void return_to_handler(void); + unsigned long addr = (unsigned long)return_to_handler; +#ifdef CONFIG_PPC64 + addr = *(unsigned long*)addr; +#endif +#endif sp = (unsigned long) stack; if (tsk == NULL) @@ -1030,6 +1039,13 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) ip = stack[STACK_FRAME_LR_SAVE]; if (!firstframe || ip != lr) { printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip); +#ifdef CONFIG_FUNCTION_GRAPH_TRACER + if (ip == addr && curr_frame >= 0) { + printk(" (%pS)", + (void *)current->ret_stack[curr_frame].ret); + curr_frame--; + } +#endif if (firstframe) printk(" (unreliable)"); printk("\n"); |