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| author | Markus Metzger <markus.t.metzger@intel.com> | 2020-03-18 10:53:41 +0100 |
|---|---|---|
| committer | Markus Metzger <markus.t.metzger@intel.com> | 2020-04-21 15:51:06 +0200 |
| commit | 1a476b6d68f338e6daa0345501c0cf0fe97dd8f3 (patch) | |
| tree | f9e909c6d92dfbd11943892ccb24458b680251ad /gdb/btrace.c | |
| parent | 4778a5f87d253399083565b4919816f541ebe414 (diff) | |
| download | binutils-gdb-1a476b6d68f338e6daa0345501c0cf0fe97dd8f3.tar.gz | |
gdb, btrace: forward fetch_registers for unknown threads
In the record-btrace target, while replaying, we can only provide the PC
register. The btrace state is stored in the thread_info. So, when trying
to determine whether we are currently replaying, GDB calls
find_thread_ptid() to obtain the thread_info. It also asserts that we do
have a thread_info.
For new threads, libthread-db may fetch registers before the thread is
known to GDB. In this case, find_thread_ptid() returns nullptr and the
assertion fails.
Forward the fetch_registers request to the target beneath in that case.
gdb/ChangeLog:
2020-03-19 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_target::fetch_registers): Forward
request if we do not have a thread_info.
gdb/testsuite/ChangeLog:
2020-03-19 Markus Metzger <markus.t.metzger@intel.com>
* gdb.btrace/enable-new-thread.c: New test.
* gdb.btrace/enable-new-thread.exp: New file.
Diffstat (limited to 'gdb/btrace.c')
0 files changed, 0 insertions, 0 deletions