diff options
| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-03-10 03:20:53 +0000 |
|---|---|---|
| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-03-10 03:20:53 +0000 |
| commit | be7cc583704ad9d3d5b1395cd516cc1b6e3584b9 (patch) | |
| tree | 2b04950dc6f8aa90b2733da423226619e710233c /addr2line.c | |
| parent | 3727e06606a3b54b0837e197e4b1424642b391fd (diff) | |
* configure.in: always check dladdr(1).
* addr2line.c (fill_lines): show the line number in C backtrace if
ruby is built without --enable-shared (PIE) on Linux.
patch is originally by Shinichiro Hamaji
https://twitter.com/shinh/status/441957774264504321
NOTE: ld doesn't insert __executable_start for PIE.
dladdr(3)'s argument must be a function pointer.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45305 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'addr2line.c')
| -rw-r--r-- | addr2line.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/addr2line.c b/addr2line.c index 92ff6b152b..9493cf1a8a 100644 --- a/addr2line.c +++ b/addr2line.c @@ -514,6 +514,14 @@ fill_lines(int num_traces, void **traces, char **syms, int check_debuglink, size_t len; if (get_path_from_symbol(syms[i], &path, &len) && !strncmp(path, binary_filename, len)) { +#if defined(HAVE_DLADDR) && defined(__pie__) && defined(__linux__) + if (ehdr->e_type == ET_DYN && lines[i].base_addr == 0) { + Dl_info info; + if (dladdr(fill_lines, &info)) { + lines[i].base_addr = (unsigned long)info.dli_fbase; + } + } +#endif lines[i].line = -1; } } |