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| author | Mark Wielaard <mjw@redhat.com> | 2009-03-20 13:30:58 +0100 |
|---|---|---|
| committer | Mark Wielaard <mjw@redhat.com> | 2009-03-20 13:30:58 +0100 |
| commit | f735e6054d182b589750db65a906c1851faa9d75 (patch) | |
| tree | 8b97be8c9218ae90cf6f8e11a97bed49e4847958 /runtime | |
| parent | 3bbd893b113a2b67162b98e7b207d9bd1eeda035 (diff) | |
| download | systemtap-steved-f735e6054d182b589750db65a906c1851faa9d75.tar.gz systemtap-steved-f735e6054d182b589750db65a906c1851faa9d75.tar.xz systemtap-steved-f735e6054d182b589750db65a906c1851faa9d75.zip | |
Move _stp_tf_vm_cb to sym.c.
* tapsets.cxx (utrace_derived_probe_group::emit_module_decls):
Remove output task finder vma callback _stp_tf_vm_cb.
* runtime/sym.c (_stp_tf_vm_cb): And add it here.
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/sym.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/runtime/sym.c b/runtime/sym.c index ed108f08..d0c5d9fd 100644 --- a/runtime/sym.c +++ b/runtime/sym.c @@ -20,6 +20,40 @@ * @{ */ +/* Callback that needs to be registered (in tapsets.cxx for + emit_module_init) for every user task path or pid for which we + might need symbols or unwind info. */ +static int _stp_tf_vm_cb(struct stap_task_finder_target *tgt, + struct task_struct *tsk, + int map_p, char *vm_path, + unsigned long vm_start, unsigned long vm_end, + unsigned long vm_pgoff) +{ + int i; +#ifdef DEBUG_TASK_FINDER_VMA + _stp_dbug(__FUNCTION__, __LINE__, "vm_cb: tsk %d:%d path %s, start 0x%08lx, end 0x%08lx, offset 0x%lx\n", tsk->pid, map_p, vm_path, vm_start, vm_end, vm_pgoff); +#endif + if (map_p) + { + struct _stp_module *module = NULL; + if (vm_path != NULL) + for (i = 0; i < _stp_num_modules; i++) + if (strcmp(vm_path, _stp_modules[i]->path) == 0) + { +#ifdef DEBUG_TASK_FINDER_VMA + _stp_dbug(__FUNCTION__, __LINE__, "vm_cb: matched path %s to module\n", vm_path); +#endif + module = _stp_modules[i]; + break; + } + stap_add_vma_map_info(tsk, vm_start, vm_end, vm_pgoff, module); + } + else + stap_remove_vma_map_info(tsk, vm_start, vm_end, vm_pgoff); + + return 0; +} + /* XXX: this needs to be address-space-specific. */ static unsigned long _stp_module_relocate(const char *module, const char *section, unsigned long offset) { |