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| author | Mark Wielaard <mjw@redhat.com> | 2009-03-17 13:50:33 +0100 |
|---|---|---|
| committer | Mark Wielaard <mjw@redhat.com> | 2009-03-17 13:50:33 +0100 |
| commit | 30cb532a560ed152b86506b80490e99195970271 (patch) | |
| tree | 51f00bfa7fbef7b8bc41ab9c9576bda1faf21dc8 | |
| parent | dcb8ea7a7d1461bef3ea56ebf65d07e8ff998a00 (diff) | |
| download | systemtap-steved-30cb532a560ed152b86506b80490e99195970271.tar.gz systemtap-steved-30cb532a560ed152b86506b80490e99195970271.tar.xz systemtap-steved-30cb532a560ed152b86506b80490e99195970271.zip | |
Get the canonical path of the main file for comparison at runtime.
When given directly by the user through -d or in case of the kernel
name and path might differ. path should be used for matching.
* runtime/sym.h (_stp_module): Add path field.
* runtime/task_finder.c (__stp_tf_vm_cb): Use module path to compare vm_path.
* translate.cxx (dump_unwindsyms): Output canonical path.
| -rw-r--r-- | runtime/sym.h | 1 | ||||
| -rw-r--r-- | runtime/task_finder.c | 2 | ||||
| -rw-r--r-- | translate.cxx | 9 |
3 files changed, 11 insertions, 1 deletions
diff --git a/runtime/sym.h b/runtime/sym.h index e642cab4..586b10ca 100644 --- a/runtime/sym.h +++ b/runtime/sym.h @@ -25,6 +25,7 @@ struct _stp_section { struct _stp_module { const char* name; + const char* path; /* canonical path used for runtime matching. */ struct _stp_section *sections; unsigned num_sections; diff --git a/runtime/task_finder.c b/runtime/task_finder.c index ae381a41..38f9145d 100644 --- a/runtime/task_finder.c +++ b/runtime/task_finder.c @@ -72,7 +72,7 @@ static int __stp_tf_vm_cb(struct stap_task_finder_target *tgt, struct _stp_module *module = NULL; if (vm_path != NULL) for (i = 0; i < _stp_num_modules; i++) - if (strcmp(vm_path, _stp_modules[i]->name) == 0) + if (strcmp(vm_path, _stp_modules[i]->path) == 0) { #ifdef DEBUG_TASK_FINDER_VMA _stp_dbug(__FUNCTION__, __LINE__, diff --git a/translate.cxx b/translate.cxx index f4c28536..377a11fb 100644 --- a/translate.cxx +++ b/translate.cxx @@ -4700,6 +4700,15 @@ dump_unwindsyms (Dwfl_Module *m, c->output << "static struct _stp_module _stp_module_" << stpmod_idx << " = {\n"; c->output << ".name = " << lex_cast_qstring (modname) << ", \n"; + + // Get the canonical path of the main file for comparison at runtime. + // When given directly by the user through -d or in case of the kernel + // name and path might differ. path should be used for matching. + const char *mainfile; + dwfl_module_info (m, NULL, NULL, NULL, NULL, NULL, &mainfile, NULL); + mainfile = canonicalize_file_name(mainfile); + c->output << ".path = " << lex_cast_qstring (mainfile) << ",\n"; + c->output << ".dwarf_module_base = 0x" << hex << base << dec << ", \n"; if (unwind != NULL) |