diff options
Diffstat (limited to 'arch/powerpc/kernel/optprobes.c')
| -rw-r--r-- | arch/powerpc/kernel/optprobes.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/optprobes.c b/arch/powerpc/kernel/optprobes.c index 024f7aad1952..445b3dad82dc 100644 --- a/arch/powerpc/kernel/optprobes.c +++ b/arch/powerpc/kernel/optprobes.c @@ -251,15 +251,17 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *p) goto error; } - branch_op_callback = create_branch((unsigned int *)buff + TMPL_CALL_HDLR_IDX, - (unsigned long)op_callback_addr, - BRANCH_SET_LINK); + rc = create_branch(&branch_op_callback, + (unsigned int *)buff + TMPL_CALL_HDLR_IDX, + (unsigned long)op_callback_addr, + BRANCH_SET_LINK); - branch_emulate_step = create_branch((unsigned int *)buff + TMPL_EMULATE_IDX, - (unsigned long)emulate_step_addr, - BRANCH_SET_LINK); + rc |= create_branch(&branch_emulate_step, + (unsigned int *)buff + TMPL_EMULATE_IDX, + (unsigned long)emulate_step_addr, + BRANCH_SET_LINK); - if (!branch_op_callback || !branch_emulate_step) + if (rc) goto error; patch_instruction(buff + TMPL_CALL_HDLR_IDX, branch_op_callback); @@ -305,6 +307,7 @@ int arch_check_optimized_kprobe(struct optimized_kprobe *op) void arch_optimize_kprobes(struct list_head *oplist) { + unsigned int instr; struct optimized_kprobe *op; struct optimized_kprobe *tmp; @@ -315,9 +318,10 @@ void arch_optimize_kprobes(struct list_head *oplist) */ memcpy(op->optinsn.copied_insn, op->kp.addr, RELATIVEJUMP_SIZE); - patch_instruction(op->kp.addr, - create_branch((unsigned int *)op->kp.addr, - (unsigned long)op->optinsn.insn, 0)); + create_branch(&instr, + (unsigned int *)op->kp.addr, + (unsigned long)op->optinsn.insn, 0); + patch_instruction(op->kp.addr, instr); list_del_init(&op->list); } } |