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authorUlrich Drepper <drepper@redhat.com>1999-11-12 21:27:41 +0000
committerUlrich Drepper <drepper@redhat.com>1999-11-12 21:27:41 +0000
commita680290af821a9f18df184edb438685f86150ab6 (patch)
treec8e6e6cc6ad75f5af34a4b536f49212a98de839c /linuxthreads_db
parent7eafba908e3aaccaf8c9204d1404e3374b946567 (diff)
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Update.
1999-11-12 Thorsten Kukuk <kukuk@suse.de> * nis/nss_nisplus/nisplus-publickey.c: Check for snprintf return value. * sysdeps/unix/sysv/linux/alpha/sys/procfs.h: Follow changes from i386 version. * sysdeps/unix/sysv/linux/arm/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/sys/procfs.h: Likewise. Closes PR libc/1438.
Diffstat (limited to 'linuxthreads_db')
-rw-r--r--linuxthreads_db/Banner1
-rw-r--r--linuxthreads_db/ChangeLog4
-rw-r--r--linuxthreads_db/Makefile2
-rw-r--r--linuxthreads_db/td_ta_thr_iter.c129
4 files changed, 85 insertions, 51 deletions
diff --git a/linuxthreads_db/Banner b/linuxthreads_db/Banner
new file mode 100644
index 0000000000..6f4f3f8189
--- /dev/null
+++ b/linuxthreads_db/Banner
@@ -0,0 +1 @@
+libthread_db work sponsored by Alpha Processor Inc
diff --git a/linuxthreads_db/ChangeLog b/linuxthreads_db/ChangeLog
index e62d56c02b..5721a01905 100644
--- a/linuxthreads_db/ChangeLog
+++ b/linuxthreads_db/ChangeLog
@@ -1,5 +1,9 @@
1999-11-12 Ulrich Drepper <drepper@cygnus.com>
+ * td_ta_thr_iter.c: Read descriptors for main and manager thread
+ special since after this we can assume that no new threads will be
+ created anymore (at least in the gdb implementation).
+
* Makefile: Define version correctly.
1999-11-10 Ulrich Drepper <drepper@cygnus.com>
diff --git a/linuxthreads_db/Makefile b/linuxthreads_db/Makefile
index fa6b3bca5f..abeacf993d 100644
--- a/linuxthreads_db/Makefile
+++ b/linuxthreads_db/Makefile
@@ -20,7 +20,7 @@
subdir := linuxthreads_db
-libthread_db-version = 1
+linuxthreads_db-version = 1.0
extra-libs = libthread_db
extra-libs-others := $(extra-libs)
diff --git a/linuxthreads_db/td_ta_thr_iter.c b/linuxthreads_db/td_ta_thr_iter.c
index ecc86c7871..8cb8c63427 100644
--- a/linuxthreads_db/td_ta_thr_iter.c
+++ b/linuxthreads_db/td_ta_thr_iter.c
@@ -21,14 +21,69 @@
#include "thread_dbP.h"
+static int
+handle_descr (const td_thragent_t *ta, td_thr_iter_f *callback,
+ void *cbdata_p, td_thr_state_e state, int ti_pri,
+ size_t cnt, pthread_descr descr)
+{
+ struct _pthread_descr_struct pds;
+ size_t sizeof_descr = ta->sizeof_descr;
+ td_thrhandle_t th;
+
+#ifdef ALL_THREADS_STOPPED
+ /* First count this active thread. */
+ --num;
+#endif
+
+ if (ps_pdread (ta->ph, descr, &pds, sizeof_descr) != PS_OK)
+ return TD_ERR; /* XXX Other error value? */
+
+ /* The manager thread must be handled special. The descriptor
+ exists but the thread only gets created when the first
+ `pthread_create' call is issued. A clear indication that this
+ happened is when the p_pid field is non-zero. */
+ if (cnt == 1 && pds.p_pid == 0)
+ return TD_OK;
+
+ /* Now test whether this thread matches the specified
+ conditions. */
+
+ /* Only if the priority level is as high or higher. */
+ if (pds.p_priority < ti_pri)
+ return TD_OK;
+
+ /* Test the state.
+ XXX This is incomplete. */
+ if (state != TD_THR_ANY_STATE)
+ return TD_OK;
+
+ /* XXX For now we ignore threads which are not running anymore.
+ The reason is that gdb tries to get the registers and fails.
+ In future we should have a special mode of the thread library
+ in which we keep the process around until the actual join
+ operation happened. */
+ if (pds.p_exited != 0)
+ return TD_OK;
+
+ /* Yep, it matches. Call the callback function. */
+ th.th_ta_p = (td_thragent_t *) ta;
+ th.th_unique = descr;
+ if (callback (&th, cbdata_p) != 0)
+ return TD_DBERR;
+
+ /* All done successfully. */
+ return TD_OK;
+}
+
+
td_err_e
td_ta_thr_iter (const td_thragent_t *ta, td_thr_iter_f *callback,
void *cbdata_p, td_thr_state_e state, int ti_pri,
sigset_t *ti_sigmask_p, unsigned int ti_user_flags)
{
int pthread_threads_max;
- size_t sizeof_descr;
struct pthread_handle_struct *phc;
+ td_err_e result = TD_OK;
int cnt;
#ifdef ALL_THREADS_STOPPED
int num;
@@ -43,14 +98,28 @@ td_ta_thr_iter (const td_thragent_t *ta, td_thr_iter_f *callback,
return TD_BADTA;
pthread_threads_max = ta->pthread_threads_max;
- sizeof_descr = ta->sizeof_descr;
phc = (struct pthread_handle_struct *) alloca (sizeof (phc[0])
* pthread_threads_max);
- /* Read all the descriptors. */
+ /* First read only the main thread and manager thread information. */
if (ps_pdread (ta->ph, ta->handles, phc,
- sizeof (struct pthread_handle_struct) * pthread_threads_max)
- != PS_OK)
+ sizeof (struct pthread_handle_struct) * 2) != PS_OK)
+ return TD_ERR; /* XXX Other error value? */
+
+ /* Now handle these descriptors. */
+ result = handle_descr (ta, callback, cbdata_p, state, ti_pri, 0,
+ phc[0].h_descr);
+ if (result != TD_OK)
+ return result;
+ result = handle_descr (ta, callback, cbdata_p, state, ti_pri, 1,
+ phc[1].h_descr);
+ if (result != TD_OK)
+ return result;
+
+ /* Read all the descriptors. */
+ if (ps_pdread (ta->ph, ta->handles, &phc[2],
+ (sizeof (struct pthread_handle_struct)
+ * (pthread_threads_max - 2))) != PS_OK)
return TD_ERR; /* XXX Other error value? */
#ifdef ALL_THREADS_STOPPED
@@ -63,51 +132,11 @@ td_ta_thr_iter (const td_thragent_t *ta, td_thr_iter_f *callback,
for (cnt = 0; cnt < pthread_threads_max && num > 0; ++cnt)
if (phc[cnt].h_descr != NULL)
{
- struct _pthread_descr_struct pds;
- td_thrhandle_t th;
-
-#ifdef ALL_THREADS_STOPPED
- /* First count this active thread. */
- --num;
-#endif
-
- if (ps_pdread (ta->ph, phc[cnt].h_descr, &pds, sizeof_descr)
- != PS_OK)
- return TD_ERR; /* XXX Other error value? */
-
- /* The manager thread must be handled special. The descriptor
- exists but the thread only gets created when the first
- `pthread_create' call is issued. A clear indication that
- this happened is when the p_pid field is non-zero. */
- if (cnt == 1 && pds.p_pid == 0)
- continue;
-
- /* Now test whether this thread matches the specified
- conditions. */
-
- /* Only if the priority level is as high or higher. */
- if (pds.p_priority < ti_pri)
- continue;
-
- /* Test the state.
- XXX This is incomplete. */
- if (state != TD_THR_ANY_STATE)
- continue;
-
- /* XXX For now we ignore threads which are not running anymore.
- The reason is that gdb tries to get the registers and fails.
- In future we should have a special mode of the thread library
- in which we keep the process around until the actual join
- operation happened. */
- if (pds.p_exited != 0)
- continue;
-
- /* Yep, it matches. Call the callback function. */
- th.th_ta_p = (td_thragent_t *) ta;
- th.th_unique = phc[cnt].h_descr;
- if (callback (&th, cbdata_p) != 0)
- return TD_DBERR;
+ result = handle_descr (ta, callback, cbdata_p, state, ti_pri, cnt,
+ phc[cnt].h_descr);
+ if (result != TD_OK)
+ break;
}
- return TD_OK;
+ return result;
}