diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/loongarch/kernel/unwind_prologue.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/loongarch/kernel/unwind_prologue.c b/arch/loongarch/kernel/unwind_prologue.c index 0f8d1451ebb8..e98b00432c88 100644 --- a/arch/loongarch/kernel/unwind_prologue.c +++ b/arch/loongarch/kernel/unwind_prologue.c @@ -56,7 +56,7 @@ static bool unwind_by_prologue(struct unwind_state *state) { long frame_ra = -1; unsigned long frame_size = 0; - unsigned long size, offset, pc = state->pc; + unsigned long size, offset, pc; struct pt_regs *regs; struct stack_info *info = &state->stack_info; union loongarch_instruction *ip, *ip_end; @@ -78,6 +78,11 @@ static bool unwind_by_prologue(struct unwind_state *state) return true; } + /* + * When first is not set, the PC is a return address in the previous frame. + * We need to adjust its value in case overflow to the next symbol. + */ + pc = state->pc - (state->first ? 0 : LOONGARCH_INSN_SIZE); if (!kallsyms_lookup_size_offset(pc, &size, &offset)) return false; |