diff options
Diffstat (limited to 'arch/powerpc/kernel/ftrace.c')
| -rw-r--r-- | arch/powerpc/kernel/ftrace.c | 29 |
1 files changed, 5 insertions, 24 deletions
diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c index 2d182f119d1..1b12696cca0 100644 --- a/arch/powerpc/kernel/ftrace.c +++ b/arch/powerpc/kernel/ftrace.c @@ -23,25 +23,14 @@ #include <asm/code-patching.h> #include <asm/ftrace.h> -#ifdef CONFIG_PPC32 -# define GET_ADDR(addr) addr -#else -/* PowerPC64's functions are data that points to the functions */ -# define GET_ADDR(addr) (*(unsigned long *)addr) -#endif #ifdef CONFIG_DYNAMIC_FTRACE -static unsigned int ftrace_nop_replace(void) -{ - return PPC_INST_NOP; -} - static unsigned int ftrace_call_replace(unsigned long ip, unsigned long addr, int link) { unsigned int op; - addr = GET_ADDR(addr); + addr = ppc_function_entry((void *)addr); /* if (link) set op to 'bl' else 'b' */ op = create_branch((unsigned int *)ip, addr, link ? 1 : 0); @@ -49,14 +38,6 @@ ftrace_call_replace(unsigned long ip, unsigned long addr, int link) return op; } -#ifdef CONFIG_PPC64 -# define _ASM_ALIGN " .align 3 " -# define _ASM_PTR " .llong " -#else -# define _ASM_ALIGN " .align 2 " -# define _ASM_PTR " .long " -#endif - static int ftrace_modify_code(unsigned long ip, unsigned int old, unsigned int new) { @@ -197,7 +178,7 @@ __ftrace_make_nop(struct module *mod, ptr = ((unsigned long)jmp[0] << 32) + jmp[1]; /* This should match what was called */ - if (ptr != GET_ADDR(addr)) { + if (ptr != ppc_function_entry((void *)addr)) { printk(KERN_ERR "addr does not match %lx\n", ptr); return -EINVAL; } @@ -328,7 +309,7 @@ int ftrace_make_nop(struct module *mod, if (test_24bit_addr(ip, addr)) { /* within range */ old = ftrace_call_replace(ip, addr, 1); - new = ftrace_nop_replace(); + new = PPC_INST_NOP; return ftrace_modify_code(ip, old, new); } @@ -466,7 +447,7 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) */ if (test_24bit_addr(ip, addr)) { /* within range */ - old = ftrace_nop_replace(); + old = PPC_INST_NOP; new = ftrace_call_replace(ip, addr, 1); return ftrace_modify_code(ip, old, new); } @@ -570,7 +551,7 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr) return_hooker = (unsigned long)&mod_return_to_handler; #endif - return_hooker = GET_ADDR(return_hooker); + return_hooker = ppc_function_entry((void *)return_hooker); /* * Protect against fault, even if it shouldn't |