diff options
Diffstat (limited to 'tools/objtool/check.c')
| -rw-r--r-- | tools/objtool/check.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 8d8191f25381..ccc66af5907f 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -1885,8 +1885,11 @@ static int validate_branch(struct objtool_file *file, struct instruction *first, if (!insn->ignore_alts) { list_for_each_entry(alt, &insn->alts, list) { ret = validate_branch(file, alt->insn, state); - if (ret) - return 1; + if (ret) { + if (backtrace) + BT_FUNC("(alt)", insn); + return ret; + } } } @@ -1933,8 +1936,11 @@ static int validate_branch(struct objtool_file *file, struct instruction *first, insn->jump_dest->func->pfunc == func)) { ret = validate_branch(file, insn->jump_dest, state); - if (ret) - return 1; + if (ret) { + if (backtrace) + BT_FUNC("(branch)", insn); + return ret; + } } else if (func && has_modified_stack_frame(&state)) { WARN_FUNC("sibling call from callable instruction with modified stack frame", @@ -2005,6 +2011,8 @@ static int validate_unwind_hints(struct objtool_file *file) for_each_insn(file, insn) { if (insn->hint && !insn->visited) { ret = validate_branch(file, insn, state); + if (ret && backtrace) + BT_FUNC("<=== (hint)", insn); warnings += ret; } } @@ -2133,6 +2141,8 @@ static int validate_functions(struct objtool_file *file) continue; ret = validate_branch(file, insn, state); + if (ret && backtrace) + BT_FUNC("<=== (func)", insn); warnings += ret; } } |