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| author | Mark Wielaard <mjw@redhat.com> | 2009-04-07 14:17:09 +0200 |
|---|---|---|
| committer | Mark Wielaard <mjw@redhat.com> | 2009-04-07 15:40:26 +0200 |
| commit | 92f6f03ee1823624f518fd6f9942f91ea88f1fe8 (patch) | |
| tree | b5fa544d2c9085fed0506c583952706424793d54 /runtime/sym.c | |
| parent | fc204b30292a3a5f1aa602171dc44d937cb2c20f (diff) | |
| download | systemtap-steved-92f6f03ee1823624f518fd6f9942f91ea88f1fe8.tar.gz systemtap-steved-92f6f03ee1823624f518fd6f9942f91ea88f1fe8.tar.xz systemtap-steved-92f6f03ee1823624f518fd6f9942f91ea88f1fe8.zip | |
Track VMA per pid (group_leader/tgid).
* runtime/sym.c (_stp_tf_vm_cb): Add and remove tsk->group_leader.
(_stp_mod_sec_lookup): find vma for task->group_leader.
Diffstat (limited to 'runtime/sym.c')
| -rw-r--r-- | runtime/sym.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/runtime/sym.c b/runtime/sym.c index 69c3fe26..0268f1ab 100644 --- a/runtime/sym.c +++ b/runtime/sym.c @@ -46,8 +46,8 @@ static int _stp_tf_mmap_cb(struct stap_task_finder_target *tgt, #ifdef DEBUG_TASK_FINDER_VMA _stp_dbug(__FUNCTION__, __LINE__, - "mmap_cb: tsk %d path %s, addr 0x%08lx, length 0x%08lx, offset 0x%lx, flags 0x%lx\n", - tsk->pid, path, addr, length, offset, flags); + "mmap_cb: tsk %d:%d path %s, addr 0x%08lx, length 0x%08lx, offset 0x%lx, flags 0x%lx\n", + tsk->pid, tsk->tgid, path, addr, length, offset, flags); #endif if (path != NULL) { for (i = 0; i < _stp_num_modules; i++) { @@ -63,7 +63,8 @@ static int _stp_tf_mmap_cb(struct stap_task_finder_target *tgt, } } } - stap_add_vma_map_info(tsk, addr, addr + length, offset, module); + stap_add_vma_map_info(tsk->group_leader, addr, addr + length, offset, + module); return 0; } @@ -72,7 +73,7 @@ static int _stp_tf_munmap_cb(struct stap_task_finder_target *tgt, unsigned long addr, unsigned long length) { - stap_remove_vma_map_info(tsk, addr, addr + length, 0); + stap_remove_vma_map_info(tsk->group_leader, addr, addr + length, 0); return 0; } @@ -144,7 +145,7 @@ static struct _stp_module *_stp_mod_sec_lookup(unsigned long addr, if (task) { unsigned long vm_start = 0; - if (stap_find_vma_map_info(task, addr, + if (stap_find_vma_map_info(task->group_leader, addr, &vm_start, NULL, NULL, &user) == 0) if (user != NULL) |