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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-10-15 05:09:11 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-10-15 05:09:11 +0200 |
| commit | b734dd5b5753c88c64bf56d4002d8ade7e88edec (patch) | |
| tree | e7cdf0f1e48ce5fa905cfe29814bc41359fd8d68 /arch/powerpc | |
| parent | powerpc/pci: Fix MODPOST warning (diff) | |
| parent | powerpc64/ftrace: use PACA to retrieve TOC in mod_return_to_handler (diff) | |
| download | linux-b734dd5b5753c88c64bf56d4002d8ade7e88edec.tar.xz linux-b734dd5b5753c88c64bf56d4002d8ade7e88edec.zip | |
Merge commit 'ftrace/ppc' into merge
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 3 | ||||
| -rw-r--r-- | arch/powerpc/kernel/process.c | 10 |
2 files changed, 8 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 900e0eea0099..f9fd54bfcc84 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -1038,8 +1038,7 @@ _GLOBAL(mod_return_to_handler) * We are in a module using the module's TOC. * Switch to our TOC to run inside the core kernel. */ - LOAD_REG_IMMEDIATE(r4,ftrace_return_to_handler) - ld r2, 8(r4) + ld r2, PACATOC(r13) bl .ftrace_return_to_handler nop diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 1168c5f440ab..2ec1eaed19ca 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1016,9 +1016,13 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) #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; + unsigned long rth = (unsigned long)return_to_handler; + unsigned long mrth = -1; #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 @@ -1044,7 +1048,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) if (!firstframe || ip != lr) { printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip); #ifdef CONFIG_FUNCTION_GRAPH_TRACER - if (ip == addr && curr_frame >= 0) { + if ((ip == rth || ip == mrth) && curr_frame >= 0) { printk(" (%pS)", (void *)current->ret_stack[curr_frame].ret); curr_frame--; |