diff options
| -rw-r--r-- | runtime/task_finder.c | 34 | ||||
| -rw-r--r-- | tapsets.cxx | 45 |
2 files changed, 43 insertions, 36 deletions
diff --git a/runtime/task_finder.c b/runtime/task_finder.c index 38f9145d..1db2bc2a 100644 --- a/runtime/task_finder.c +++ b/runtime/task_finder.c @@ -55,40 +55,6 @@ typedef int (*stap_task_finder_vm_callback)(struct stap_task_finder_target *tgt, unsigned long vm_end, unsigned long vm_pgoff); -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; -} - struct stap_task_finder_target { /* private: */ struct list_head list; /* __stp_task_finder_list linkage */ diff --git a/tapsets.cxx b/tapsets.cxx index 632e8d95..89e011c4 100644 --- a/tapsets.cxx +++ b/tapsets.cxx @@ -7159,6 +7159,47 @@ utrace_derived_probe_group::emit_module_decls (systemtap_session& s) s.op->newline() << "return rc;"; s.op->newline(-1) << "}"; + // Output task finder vma callback + s.op->newline() << "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) {"; + s.op->indent(1); + s.op->newline() << "int i;"; + s.op->newline() << "#ifdef DEBUG_TASK_FINDER_VMA"; + s.op->indent(1); + s.op->newline() << "_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);"; + s.op->indent(-1); + s.op->newline() << "#endif"; + s.op->newline() << "if (map_p) {"; + s.op->indent(1); + s.op->newline() << "struct _stp_module *module = NULL;"; + s.op->newline() << "if (vm_path != NULL)"; + s.op->indent(1); + s.op->newline() << "for (i = 0; i < _stp_num_modules; i++)"; + s.op->indent(1); + s.op->newline() << "if (strcmp(vm_path, _stp_modules[i]->path) == 0) {"; + s.op->indent(1); + s.op->newline() << "#ifdef DEBUG_TASK_FINDER_VMA"; + s.op->indent(1); + s.op->newline() << "_stp_dbug(__FUNCTION__, __LINE__, \"vm_cb: matched path %s to module\\n\", vm_path);"; + s.op->indent(-1); + s.op->newline() << "#endif"; + s.op->newline() << "module = _stp_modules[i];"; + s.op->newline() << "break;"; + s.op->indent(-1); + s.op->newline() << "}"; + s.op->indent(-2); + // XXX Check return value + s.op->newline() << "stap_add_vma_map_info(tsk, vm_start, vm_end, vm_pgoff, module);"; + s.op->indent(-1); + s.op->newline() << "} else {"; + s.op->indent(1); + // XXX Check return value + s.op->newline() << "stap_remove_vma_map_info(tsk, vm_start, vm_end, vm_pgoff);"; + s.op->indent(-1); + s.op->newline() << "}"; + s.op->newline() << "return 0;"; + s.op->indent(-1); + s.op->newline() << "}"; + s.op->newline() << "static struct stap_utrace_probe stap_utrace_probes[] = {"; s.op->indent(1); @@ -7172,7 +7213,7 @@ utrace_derived_probe_group::emit_module_decls (systemtap_session& s) // our vm_callback called. string path = it->first; emit_vm_callback_probe_decl (s, true, path, (int64_t)0, - "__stp_tf_vm_cb"); + "_stp_tf_vm_cb"); for (unsigned i = 0; i < it->second.size(); i++) { @@ -7191,7 +7232,7 @@ utrace_derived_probe_group::emit_module_decls (systemtap_session& s) // Emit a "fake" probe decl that is really a hook for to get // our vm_callback called. emit_vm_callback_probe_decl (s, false, "", it->first, - "__stp_tf_vm_cb"); + "_stp_tf_vm_cb"); for (unsigned i = 0; i < it->second.size(); i++) { |