diff options
| author | qiyao <qiyao> | 2013-07-18 23:09:48 +0000 |
|---|---|---|
| committer | qiyao <qiyao> | 2013-07-18 23:09:48 +0000 |
| commit | cc3c9e5f2bf4c0b64cfc7f4a9af1921c8c0298c2 (patch) | |
| tree | 375cbd628c4746fcd0e37d10b9012a8a6a3c4f1c /gdb/target.h | |
| parent | 5f3c083af079e3d88299015866a6d2c612ec677d (diff) | |
| download | gdb-cc3c9e5f2bf4c0b64cfc7f4a9af1921c8c0298c2.tar.gz | |
gdb/
* target.c (update_current_target): Change the default action
of 'to_traceframe_info' from tcomplain to return_zero.
* target.h (struct target_ops) <to_traceframe_info>: Add more
comments.
* valops.c (read_value_memory): Call
traceframe_available_memory unconditionally.
gdb/testsuite/
* gdb.trace/read-memory.exp (test_from_remote): Update test.
(teset_from_exec): Likewise.
Diffstat (limited to 'gdb/target.h')
| -rw-r--r-- | gdb/target.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/gdb/target.h b/gdb/target.h index 2ba85d9f70d..21e5792ad78 100644 --- a/gdb/target.h +++ b/gdb/target.h @@ -854,9 +854,18 @@ struct target_ops (const char *id); /* Return a traceframe info object describing the current - traceframe's contents. This method should not cache data; - higher layers take care of caching, invalidating, and - re-fetching when necessary. */ + traceframe's contents. If the target doesn't support + traceframe info, return NULL. If the current traceframe is not + selected (the current traceframe number is -1), the target can + choose to return either NULL or an empty traceframe info. If + NULL is returned, for example in remote target, GDB will read + from the live inferior. If an empty traceframe info is + returned, for example in tfile target, which means the + traceframe info is available, but the requested memory is not + available in it. GDB will try to see if the requested memory + is available in the read-only sections. This method should not + cache data; higher layers take care of caching, invalidating, + and re-fetching when necessary. */ struct traceframe_info *(*to_traceframe_info) (void); /* Ask the target to use or not to use agent according to USE. Return 1 |