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author | Pedro Alves <palves@redhat.com> | 2013-09-17 18:26:41 +0000 |
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committer | Pedro Alves <palves@redhat.com> | 2013-09-17 18:26:41 +0000 |
commit | 08d72866c0af5242ab28e61727cd9ae9703810d8 (patch) | |
tree | f0c3e42be6cc2c1bf57d1e3ccd9d9c0c7e36585d /gdb/infcmd.c | |
parent | a7ea61cf67933d71a4451665cf979afcb259221f (diff) | |
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PR gdb/15911: "info threads" changes the default source and line (for "break", "list")
"info threads" changes the default source for "break" and "list", to
whatever the location of the first/bottom thread in the thread list
is...
(gdb) b start
(gdb) c
...
(gdb) list
*lists "start"*
(gdb) b 23
Breakpoint 3 at 0x400614: file test.c, line 23.
(gdb) info threads
Id Target Id Frame
* 2 Thread 0x7ffff7fcb700 (LWP 1760) "test" start (arg=0x0) at test.c:23
1 Thread 0x7ffff7fcc740 (LWP 1748) "test" 0x000000323dc08e60 in pthread_join (threadid=140737353922304, thread_return=0x0) at pthread_join.c:93
(gdb) b 23
Breakpoint 4 at 0x323dc08d90: file pthread_join.c, line 23.
^^^^^^^^^^^^^^^
(gdb) list
93 lll_wait_tid (pd->tid);
94
95
96 /* Restore cancellation mode. */
97 CANCEL_RESET (oldtype);
98
99 /* Remove the handler. */
100 pthread_cleanup_pop (0);
101
102
The issue is that print_stack_frame always sets the current sal to the
frame's sal. print_frame_info (which print_stack_frame calls to do
most of the work) also sets the last displayed sal, but only if
print_what isn't LOCATION. Now the call in question, from within
thread.c:print_thread_info, does pass in LOCATION as print_what, but
print_stack_frame doesn't have the same check print_frame_info has.
We could consider adding it, but setting these globals depending on
print_what isn't very clean, IMO. What we have is two logically
distinct operations mixed in the same function(s):
#1 - print frame, in the format specified by {print_what,
print_level and print_args}.
#2 - We're displaying a frame to the user, and I want the default
sal to point here, because the program stopped here, or the user
did some context-changing command (up, down, etc.).
So I added a new parameter to print_stack_frame & friends for point
#2, and went through all calls in the tree adjusting as necessary.
Tested on x86_64 Fedora 17.
gdb/
2013-09-17 Pedro Alves <palves@redhat.com>
PR gdb/15911
* ada-tasks.c (task_command_1): Adjust call to print_stack_frame.
* bsd-kvm.c (bsd_kvm_open, bsd_kvm_proc_cmd, bsd_kvm_pcb_cmd):
* corelow.c (core_open):
* frame.h (print_stack_frame, print_frame_info): New
'set_current_sal' parameter.
* infcmd.c (finish_command, kill_command): Adjust call to
print_stack_frame.
* inferior.c (inferior_command): Likewise.
* infrun.c (normal_stop): Likewise.
* linux-fork.c (linux_fork_context): Likewise.
* record-full.c (record_full_goto_entry, record_full_restore):
Likewise.
* remote-mips.c (common_open): Likewise.
* stack.c (print_stack_frame): New 'set_current_sal' parameter.
Use it.
(print_frame_info): New 'set_current_sal' parameter. Set the last
displayed sal depending on the new paremeter instead of looking at
print_what.
(backtrace_command_1, select_and_print_frame, frame_command)
(current_frame_command, up_command, down_command): Adjust call to
print_stack_frame.
* thread.c (print_thread_info, restore_selected_frame)
(do_captured_thread_select): Adjust call to print_stack_frame.
* tracepoint.c (tfind_1): Likewise.
* mi/mi-cmd-stack.c (mi_cmd_stack_list_frames)
(mi_cmd_stack_info_frame): Likewise.
* mi/mi-interp.c (mi_on_normal_stop): Likewise.
* mi/mi-main.c (mi_cmd_exec_return, mi_cmd_trace_find): Likewise.
gdb/testsuite/
* gdb.threads/info-threads-cur-sal-2.c: New file.
* gdb.threads/info-threads-cur-sal.c: New file.
* gdb.threads/info-threads-cur-sal.exp: New file.
Diffstat (limited to 'gdb/infcmd.c')
-rw-r--r-- | gdb/infcmd.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gdb/infcmd.c b/gdb/infcmd.c index 154cde2..242aac1 100644 --- a/gdb/infcmd.c +++ b/gdb/infcmd.c @@ -1765,7 +1765,7 @@ finish_command (char *arg, int from_tty) if (from_tty) { printf_filtered (_("Run till exit from ")); - print_stack_frame (get_selected_frame (NULL), 1, LOCATION); + print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); } proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); @@ -1790,7 +1790,7 @@ finish_command (char *arg, int from_tty) else printf_filtered (_("Run till exit from ")); - print_stack_frame (get_selected_frame (NULL), 1, LOCATION); + print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); } if (execution_direction == EXEC_REVERSE) @@ -2334,7 +2334,7 @@ kill_command (char *arg, int from_tty) if (target_has_stack) { printf_filtered (_("In %s,\n"), target_longname); - print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); + print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); } } bfd_cache_close_all (); |