diff options
author | Roland McGrath <roland@gnu.org> | 2015-04-28 11:07:24 +0800 |
---|---|---|
committer | Waldemar Brodkorb <wbx@openadk.org> | 2015-06-10 10:17:53 -0500 |
commit | 8d92e32a73655a0820ce5085f017911abaad28b3 (patch) | |
tree | 0cb314484a17a76b3255a795f3103e41b877b8b2 /libpthread/nptl_db/td_thr_event_enable.c | |
parent | 8484e59e6b1dfe424d13f736c146aafbeac5cabf (diff) |
init.c (__nptl_initial_report_events): New variable.
(__pthread_initialize_minimal_internal): Initialize pd->report_events
to that.
This patch helps NPTL report TD_CREATE event, so that GDB could catch the
event and update its thread_list.
Link: http://lists.uclibc.org/pipermail/uclibc/2015-April/048921.html
[shengyong:
- original patch from glibc: commit 7d9d8bd18906fdd17364f372b160d7ab896ce909
- context adjust
- update nptl_db/ChangeLog]
Signed-off-by: Roland McGrath <roland@gnu.org>
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libpthread/nptl_db/td_thr_event_enable.c')
-rw-r--r-- | libpthread/nptl_db/td_thr_event_enable.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/libpthread/nptl_db/td_thr_event_enable.c b/libpthread/nptl_db/td_thr_event_enable.c index f49682daa..fd9458011 100644 --- a/libpthread/nptl_db/td_thr_event_enable.c +++ b/libpthread/nptl_db/td_thr_event_enable.c @@ -1,5 +1,5 @@ /* Enable event process-wide. - Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc. + Copyright (C) 1999, 2001, 2002, 2003, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 1999. @@ -25,7 +25,25 @@ td_thr_event_enable (const td_thrhandle_t *th, int onoff) { LOG ("td_thr_event_enable"); - /* Write the new value into the thread data structure. */ - return DB_PUT_FIELD (th->th_ta_p, th->th_unique, pthread, report_events, 0, + if (th->th_unique != 0) + { + /* Write the new value into the thread data structure. */ + td_err_e err = DB_PUT_FIELD (th->th_ta_p, th->th_unique, pthread, + report_events, 0, + (psaddr_t) 0 + (onoff != 0)); + if (err != TD_OK) + return err; + + /* Just in case we are in the window between initializing __stack_user + and copying from __nptl_initial_report_events, we set it too. + It doesn't hurt to do this for non-initial threads, since it + won't be consulted again anyway. It would take another fetch + to get the tid and determine this isn't the initial thread, + so just do it always. */ + } + + /* We are faking it for the initial thread before its thread + descriptor is set up. */ + return DB_PUT_VALUE (th->th_ta_p, __nptl_initial_report_events, 0, (psaddr_t) 0 + (onoff != 0)); } |