diff options
| -rw-r--r-- | src/processor/basic_source_line_resolver.cc | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/processor/basic_source_line_resolver.cc b/src/processor/basic_source_line_resolver.cc index 6fb47b3b..799045ac 100644 --- a/src/processor/basic_source_line_resolver.cc +++ b/src/processor/basic_source_line_resolver.cc @@ -350,7 +350,7 @@ BasicSourceLineResolver::Module::ParseFunction(char *function_line) { BasicSourceLineResolver::Line* BasicSourceLineResolver::Module::ParseLine( char *line_line) { - // <address> <line number> <source file id> + // <address> <size> <line number> <source file id> vector<char*> tokens; if (!Tokenize(line_line, kWhitespace, 4, &tokens)) { return NULL; @@ -360,7 +360,14 @@ BasicSourceLineResolver::Line* BasicSourceLineResolver::Module::ParseLine( uint64_t size = strtoull(tokens[1], NULL, 16); int line_number = atoi(tokens[2]); int source_file = atoi(tokens[3]); - if (line_number <= 0) { + + // Valid line numbers normally start from 1, however there are functions that + // are associated with a source file but not associated with any line number + // (block helper function) and for such functions the symbol file contains 0 + // for the line numbers. Hence, 0 shoud be treated as a valid line number. + // For more information on block helper functions, please, take a look at: + // http://clang.llvm.org/docs/Block-ABI-Apple.html + if (line_number < 0) { return NULL; } |