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Merge commit 'ftrace/ppc' into merge

This commit is contained in:
Benjamin Herrenschmidt 2009-10-15 14:09:11 +11:00
parent 0f6023d599 be10ab1090
commit b734dd5b57
2 changed files with 8 additions and 5 deletions
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3
arch/powerpc/kernel/entry_64.S
View File

@ -1038,8 +1038,7 @@ _GLOBAL(mod_return_to_handler)
* We are in a module using the module's TOC. * We are in a module using the module's TOC.
* Switch to our TOC to run inside the core kernel. * Switch to our TOC to run inside the core kernel.
*/ */
LOAD_REG_IMMEDIATE(r4,ftrace_return_to_handler) ld r2, PACATOC(r13)
ld r2, 8(r4)
bl .ftrace_return_to_handler bl .ftrace_return_to_handler
nop nop

10
arch/powerpc/kernel/process.c
View File

@ -1016,9 +1016,13 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
#ifdef CONFIG_FUNCTION_GRAPH_TRACER #ifdef CONFIG_FUNCTION_GRAPH_TRACER
int curr_frame = current->curr_ret_stack; int curr_frame = current->curr_ret_stack;
extern void return_to_handler(void); extern void return_to_handler(void);
unsigned long addr = (unsigned long)return_to_handler; unsigned long rth = (unsigned long)return_to_handler;
unsigned long mrth = -1;
#ifdef CONFIG_PPC64 #ifdef CONFIG_PPC64
addr = *(unsigned long*)addr; extern void mod_return_to_handler(void);
rth = *(unsigned long *)rth;
mrth = (unsigned long)mod_return_to_handler;
mrth = *(unsigned long *)mrth;
#endif #endif
#endif #endif
@ -1044,7 +1048,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
if (!firstframe || ip != lr) { if (!firstframe || ip != lr) {
printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip); printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
#ifdef CONFIG_FUNCTION_GRAPH_TRACER #ifdef CONFIG_FUNCTION_GRAPH_TRACER
if (ip == addr && curr_frame >= 0) { if ((ip == rth || ip == mrth) && curr_frame >= 0) {
printk(" (%pS)", printk(" (%pS)",
(void *)current->ret_stack[curr_frame].ret); (void *)current->ret_stack[curr_frame].ret);
curr_frame--; curr_frame--;