diff options
Diffstat (limited to 'arch/loongarch/kernel/unwind_prologue.c')
| -rw-r--r-- | arch/loongarch/kernel/unwind_prologue.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/loongarch/kernel/unwind_prologue.c b/arch/loongarch/kernel/unwind_prologue.c index 46fe344d7fba..0f8d1451ebb8 100644 --- a/arch/loongarch/kernel/unwind_prologue.c +++ b/arch/loongarch/kernel/unwind_prologue.c @@ -2,6 +2,7 @@ /* * Copyright (C) 2022 Loongson Technology Corporation Limited */ +#include <linux/ftrace.h> #include <linux/kallsyms.h> #include <asm/inst.h> @@ -42,6 +43,8 @@ static bool unwind_by_guess(struct unwind_state *state) state->sp < info->end; state->sp += sizeof(unsigned long)) { addr = *(unsigned long *)(state->sp); + state->pc = ftrace_graph_ret_addr(state->task, &state->graph_idx, + addr, (unsigned long *)(state->sp - GRAPH_FAKE_OFFSET)); if (__kernel_text_address(addr)) return true; } @@ -174,8 +177,11 @@ bool unwind_next_frame(struct unwind_state *state) break; case UNWINDER_PROLOGUE: - if (unwind_by_prologue(state)) + if (unwind_by_prologue(state)) { + state->pc = ftrace_graph_ret_addr(state->task, &state->graph_idx, + state->pc, (unsigned long *)(state->sp - GRAPH_FAKE_OFFSET)); return true; + } if (info->type == STACK_TYPE_IRQ && info->end == state->sp) { @@ -185,10 +191,11 @@ bool unwind_next_frame(struct unwind_state *state) if (user_mode(regs) || !__kernel_text_address(pc)) return false; - state->pc = pc; - state->sp = regs->regs[3]; - state->ra = regs->regs[1]; state->first = true; + state->ra = regs->regs[1]; + state->sp = regs->regs[3]; + state->pc = ftrace_graph_ret_addr(state->task, &state->graph_idx, + pc, (unsigned long *)(state->sp - GRAPH_FAKE_OFFSET)); get_stack_info(state->sp, state->task, info); return true; |