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* [binutils-gdb] gdb: add some extra debug information to attach_command
@ 2022-01-13 10:13 Andrew Burgess
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From: Andrew Burgess @ 2022-01-13 10:13 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=993248f4439271d7d5d3b504b851043af7495c25
commit 993248f4439271d7d5d3b504b851043af7495c25
Author: Andrew Burgess <aburgess@redhat.com>
Date: Tue Jan 11 17:31:16 2022 +0000
gdb: add some extra debug information to attach_command
While working on another patch I wanted to add some extra debug
information to the attach_command function. This required me to add a
new function to convert the thread_info::state variable to a string.
The new debug might be useful to others, and the state to string
function might be useful in other locations, so I thought I'd merge
it.
Diff:
---
gdb/gdbthread.h | 4 ++++
gdb/infcmd.c | 12 ++++++++++++
gdb/thread.c | 20 ++++++++++++++++++++
3 files changed, 36 insertions(+)
diff --git a/gdb/gdbthread.h b/gdb/gdbthread.h
index 5350a42f1bb..9921dae7a71 100644
--- a/gdb/gdbthread.h
+++ b/gdb/gdbthread.h
@@ -1003,4 +1003,8 @@ extern void thread_try_catch_cmd (thread_info *thr,
const char *cmd, int from_tty,
const qcs_flags &flags);
+/* Return a string representation of STATE. */
+
+extern const char *thread_state_string (enum thread_state state);
+
#endif /* GDBTHREAD_H */
diff --git a/gdb/infcmd.c b/gdb/infcmd.c
index 8bf58018bdd..9f4ed8bff13 100644
--- a/gdb/infcmd.c
+++ b/gdb/infcmd.c
@@ -2541,6 +2541,18 @@ attach_command (const char *args, int from_tty)
shouldn't refer to attach_target again. */
attach_target = NULL;
+ if (debug_infrun)
+ {
+ infrun_debug_printf ("immediately after attach:");
+ for (thread_info *thread : inferior->non_exited_threads ())
+ infrun_debug_printf (" thread %s, executing = %d, resumed = %d, "
+ "state = %s",
+ thread->ptid.to_string ().c_str (),
+ thread->executing (),
+ thread->resumed (),
+ thread_state_string (thread->state));
+ }
+
/* Set up the "saved terminal modes" of the inferior
based on what modes we are starting it with. */
target_terminal::init ();
diff --git a/gdb/thread.c b/gdb/thread.c
index 8a7d142bab5..c43f6613145 100644
--- a/gdb/thread.c
+++ b/gdb/thread.c
@@ -2050,6 +2050,26 @@ thread_name (thread_info *thread)
return target_thread_name (thread);
}
+/* See gdbthread.h. */
+
+const char *
+thread_state_string (enum thread_state state)
+{
+ switch (state)
+ {
+ case THREAD_STOPPED:
+ return "STOPPED";
+
+ case THREAD_RUNNING:
+ return "RUNNING";
+
+ case THREAD_EXITED:
+ return "EXITED";
+ }
+
+ gdb_assert_not_reached ("unknown thread state");
+}
+
/* Return a new value for the selected thread's id. Return a value of
0 if no thread is selected. If GLOBAL is true, return the thread's
global number. Otherwise return the per-inferior number. */
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2022-01-13 10:13 [binutils-gdb] gdb: add some extra debug information to attach_command Andrew Burgess
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