diff options
Diffstat (limited to 'arch/powerpc/include/asm/ftrace.h')
| -rw-r--r-- | arch/powerpc/include/asm/ftrace.h | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/ftrace.h b/arch/powerpc/include/asm/ftrace.h index 91c049d51d0e..9e5a39b6a311 100644 --- a/arch/powerpc/include/asm/ftrace.h +++ b/arch/powerpc/include/asm/ftrace.h @@ -11,8 +11,8 @@ #define HAVE_FUNCTION_GRAPH_RET_ADDR_PTR /* Ignore unused weak functions which will have larger offsets */ -#ifdef CONFIG_MPROFILE_KERNEL -#define FTRACE_MCOUNT_MAX_OFFSET 12 +#if defined(CONFIG_MPROFILE_KERNEL) || defined(CONFIG_ARCH_USING_PATCHABLE_FUNCTION_ENTRY) +#define FTRACE_MCOUNT_MAX_OFFSET 16 #elif defined(CONFIG_PPC32) #define FTRACE_MCOUNT_MAX_OFFSET 8 #endif @@ -22,18 +22,26 @@ extern void _mcount(void); static inline unsigned long ftrace_call_adjust(unsigned long addr) { - /* relocation of mcount call site is the same as the address */ + if (IS_ENABLED(CONFIG_ARCH_USING_PATCHABLE_FUNCTION_ENTRY)) + addr += MCOUNT_INSN_SIZE; + return addr; } unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip, unsigned long sp); +struct module; +struct dyn_ftrace; struct dyn_arch_ftrace { struct module *mod; }; #ifdef CONFIG_DYNAMIC_FTRACE_WITH_ARGS +#define ftrace_need_init_nop() (true) +int ftrace_init_nop(struct module *mod, struct dyn_ftrace *rec); +#define ftrace_init_nop ftrace_init_nop + struct ftrace_regs { struct pt_regs regs; }; @@ -124,15 +132,19 @@ static inline u8 this_cpu_get_ftrace_enabled(void) { return get_paca()->ftrace_enabled; } - -void ftrace_free_init_tramp(void); #else /* CONFIG_PPC64 */ static inline void this_cpu_disable_ftrace(void) { } static inline void this_cpu_enable_ftrace(void) { } static inline void this_cpu_set_ftrace_enabled(u8 ftrace_enabled) { } static inline u8 this_cpu_get_ftrace_enabled(void) { return 1; } -static inline void ftrace_free_init_tramp(void) { } #endif /* CONFIG_PPC64 */ + +#ifdef CONFIG_FUNCTION_TRACER +extern unsigned int ftrace_tramp_text[], ftrace_tramp_init[]; +void ftrace_free_init_tramp(void); +#else +static inline void ftrace_free_init_tramp(void) { } +#endif #endif /* !__ASSEMBLY__ */ #endif /* _ASM_POWERPC_FTRACE */ |