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authorTom Tromey <tromey@redhat.com>2014-01-13 09:30:30 -0700
committerTom Tromey <tromey@redhat.com>2014-02-19 07:48:41 -0700
commit2117c711ae07700adb57ea5b5ca61e4c32d7e3d2 (patch)
tree11d83657fb461542a058900c25dd225088c0dc25 /gdb/target.h
parente88ef65ce5f5ec33931c71c2c7a1f490b90ddd44 (diff)
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change delegation for to_read_description
This switches to_read_description to the "new normal" delegation scheme. This one was a bit trickier than the other changes due to the way that target_read_description handled delegation. I examined all the target implementations of to_read_description and changed the ones returning NULL to instead delegate. 2014-02-19 Tom Tromey <tromey@redhat.com> * arm-linux-nat.c (arm_linux_read_description): Delegate when needed. * corelow.c (core_read_description): Delegate when needed. * remote.c (remote_read_description): Delegate when needed. * target-delegates.c: Rebuild. * target.c (target_read_description): Rewrite. * target.h (struct target_ops) <to_read_description>: Update comment. Use TARGET_DEFAULT_RETURN.
Diffstat (limited to 'gdb/target.h')
-rw-r--r--gdb/target.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/gdb/target.h b/gdb/target.h
index ec15e5b..34539c1 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -690,10 +690,12 @@ struct target_ops
void (*to_flash_done) (struct target_ops *)
TARGET_DEFAULT_NORETURN (tcomplain ());
- /* Describe the architecture-specific features of this target.
- Returns the description found, or NULL if no description
- was available. */
- const struct target_desc *(*to_read_description) (struct target_ops *ops);
+ /* Describe the architecture-specific features of this target. If
+ OPS doesn't have a description, this should delegate to the
+ "beneath" target. Returns the description found, or NULL if no
+ description was available. */
+ const struct target_desc *(*to_read_description) (struct target_ops *ops)
+ TARGET_DEFAULT_RETURN (0);
/* Build the PTID of the thread on which a given task is running,
based on LWP and THREAD. These values are extracted from the