#ifndef _ASM_POWERPC_FTRACE | |
#define _ASM_POWERPC_FTRACE | |
#ifdef CONFIG_FUNCTION_TRACER | |
#define MCOUNT_ADDR ((long)(_mcount)) | |
#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ | |
#ifdef __ASSEMBLY__ | |
/* Based off of objdump optput from glibc */ | |
#define MCOUNT_SAVE_FRAME \ | |
stwu r1,-48(r1); \ | |
stw r3, 12(r1); \ | |
stw r4, 16(r1); \ | |
stw r5, 20(r1); \ | |
stw r6, 24(r1); \ | |
mflr r3; \ | |
lwz r4, 52(r1); \ | |
mfcr r5; \ | |
stw r7, 28(r1); \ | |
stw r8, 32(r1); \ | |
stw r9, 36(r1); \ | |
stw r10,40(r1); \ | |
stw r3, 44(r1); \ | |
stw r5, 8(r1) | |
#define MCOUNT_RESTORE_FRAME \ | |
lwz r6, 8(r1); \ | |
lwz r0, 44(r1); \ | |
lwz r3, 12(r1); \ | |
mtctr r0; \ | |
lwz r4, 16(r1); \ | |
mtcr r6; \ | |
lwz r5, 20(r1); \ | |
lwz r6, 24(r1); \ | |
lwz r0, 52(r1); \ | |
lwz r7, 28(r1); \ | |
lwz r8, 32(r1); \ | |
mtlr r0; \ | |
lwz r9, 36(r1); \ | |
lwz r10,40(r1); \ | |
addi r1, r1, 48 | |
#else /* !__ASSEMBLY__ */ | |
extern void _mcount(void); | |
#ifdef CONFIG_DYNAMIC_FTRACE | |
static inline unsigned long ftrace_call_adjust(unsigned long addr) | |
{ | |
/* reloction of mcount call site is the same as the address */ | |
return addr; | |
} | |
struct dyn_arch_ftrace { | |
struct module *mod; | |
}; | |
#endif /* CONFIG_DYNAMIC_FTRACE */ | |
#endif /* __ASSEMBLY__ */ | |
#endif | |
#endif /* _ASM_POWERPC_FTRACE */ |