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| author | Wenji Huang <wenji.huang@oracle.com> | 2008-10-06 03:07:09 -0400 |
|---|---|---|
| committer | Wenji Huang <wenji.huang@oracle.com> | 2008-10-06 03:07:09 -0400 |
| commit | 2949597251fea7f17a0e46c1c885e34b53395d18 (patch) | |
| tree | 7628da32ea81a5bbaf10f31c7fd60006629db3d6 /runtime/staprun/staprun.c | |
| parent | 5311c037f83f66967f9de4cc66815f93940bb005 (diff) | |
| download | systemtap-steved-2949597251fea7f17a0e46c1c885e34b53395d18.tar.gz systemtap-steved-2949597251fea7f17a0e46c1c885e34b53395d18.tar.xz systemtap-steved-2949597251fea7f17a0e46c1c885e34b53395d18.zip | |
PR4886: check build-id if able.
This provides sanity check of debuginfo file based on build-id. Many cases are considered, whether build-id exists in debuginfo file or not, whether module is loaded or not, whether build-id exists in runtime kernel/module. It will do work when LD >= 2.18 and kernel >=2.6.23, otherwise no check.
Diffstat (limited to 'runtime/staprun/staprun.c')
| -rw-r--r-- | runtime/staprun/staprun.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/runtime/staprun/staprun.c b/runtime/staprun/staprun.c index f8a08876..d23945e6 100644 --- a/runtime/staprun/staprun.c +++ b/runtime/staprun/staprun.c @@ -370,6 +370,11 @@ int send_relocation_kernel () } fclose (kallsyms); if (!done_with_kallsyms) srkrc = -1; + /* detect note section, send flag if there + * NB: address=2 represents existed note, the real one in _stp_module + */ + if (srkrc != -1 && !access("/sys/kernel/notes", R_OK)) + send_a_relocation ("kernel", ".note.gnu.build-id", 2); } return srkrc; |