1 2005-12-01 Jeff Johnston <jjohnstn@redhat.com>
3 * frame.c (backtrace_past_zero_pc): New static variable.
4 (get_prev_frame): Don't return NULL for zero pc value if
5 backtrace past-zero-frame option is turned on.
6 (_initialize_frame): Initialize new command to allow backtracing
7 past a zero pc value (set backtrace past-zero-pc).
10 2005-12-01 Jeff Johnston <jjohnstn@redhat.com>
12 * setshow.exp: Add testing of "set backtrace past-zero-pc" option.
14 2007-10-15 Jan Kratochvil <jan.kratochvil@redhat.com>
18 Index: gdb-7.1.90.20100711/gdb/testsuite/gdb.base/setshow.exp
19 ===================================================================
20 --- gdb-7.1.90.20100711.orig/gdb/testsuite/gdb.base/setshow.exp 2010-06-11 22:56:06.000000000 +0200
21 +++ gdb-7.1.90.20100711/gdb/testsuite/gdb.base/setshow.exp 2010-07-12 10:46:06.000000000 +0200
22 @@ -96,6 +96,16 @@ if { ![target_info exists use_gdb_stub]
24 gdb_test "run" "Starting program:.*foo bar blup baz bubble.*" "passing args"
26 +#test show backtrace past-zero-pc
27 +gdb_test "show backtrace past-zero-pc" "Whether backtraces should continue past a zero pc value is off." "default show backtrace past-zero-pc (off)"
28 +#test set backtrace past-zero-pc on
29 +gdb_test "set backtrace past-zero-pc on" "" "set backtrace past-zero-pc on"
30 +#test show backtrace past-zero-pc
31 +gdb_test "show backtrace past-zero-pc" "Whether backtraces should continue past a zero pc value is on." "show backtrace past-zero-pc (on)"
32 +#test set backtrace past-zero-pc off
33 +gdb_test "set backtrace past-zero-pc off" "" "set backtrace past-zero-pc off"
34 +#test show backtrace past-zero-pc
35 +gdb_test "show backtrace past-zero-pc" "Whether backtraces should continue past a zero pc value is off." "show backtrace past-zero-pc (off)"
36 #test set check range on
37 gdb_test "set check range on" ".*" "set check range on"
38 #test show check range on
39 Index: gdb-7.1.90.20100711/gdb/frame.c
40 ===================================================================
41 --- gdb-7.1.90.20100711.orig/gdb/frame.c 2010-07-12 10:00:56.000000000 +0200
42 +++ gdb-7.1.90.20100711/gdb/frame.c 2010-07-12 10:45:18.000000000 +0200
43 @@ -185,6 +185,16 @@ Whether backtraces should continue past
47 +static int backtrace_past_zero_pc;
49 +show_backtrace_past_zero_pc (struct ui_file *file, int from_tty,
50 + struct cmd_list_element *c, const char *value)
52 + fprintf_filtered (file, _("\
53 +Whether backtraces should continue past a zero pc value is %s.\n"),
57 static int backtrace_past_entry;
59 show_backtrace_past_entry (struct ui_file *file, int from_tty,
60 @@ -1784,9 +1794,7 @@ get_prev_frame (struct frame_info *this_
63 if (this_frame->level > 0
65 - && backtrace_past_zero_pc
67 + && !backtrace_past_zero_pc
68 && get_frame_type (this_frame) == NORMAL_FRAME
69 && get_frame_type (get_next_frame (this_frame)) == NORMAL_FRAME
70 && get_frame_pc (this_frame) == 0)
71 @@ -2271,6 +2279,17 @@ the rest of the stack trace."),
72 &set_backtrace_cmdlist,
73 &show_backtrace_cmdlist);
75 + add_setshow_boolean_cmd ("past-zero-pc", class_obscure,
76 + &backtrace_past_zero_pc, _("\
77 +Set whether backtraces should continue past a zero pc value."), _("\
78 +Show whether backtraces should continue past a zero pc value."), _("\
79 +Normally GDB stops backtracing when it finds a zero pc.\n\
80 +Set this variable if you need to see the rest of the stack trace."),
82 + show_backtrace_past_zero_pc,
83 + &set_backtrace_cmdlist,
84 + &show_backtrace_cmdlist);
86 add_setshow_integer_cmd ("limit", class_obscure,
87 &backtrace_limit, _("\
88 Set an upper bound on the number of backtrace levels."), _("\