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| author | Daniel Jacobowitz <dan@debian.org> | 2005-05-28 22:51:37 +0000 |
|---|---|---|
| committer | Daniel Jacobowitz <dan@debian.org> | 2005-05-28 22:51:37 +0000 |
| commit | 0548f7c35e5197f5cf9e2a58a35485f7f2cdb032 (patch) | |
| tree | f5a2e51042a9a954732cf895518b001d8969a7ea /gdb/frame.c | |
| parent | bc22acfee8107ed85dd9c72ecfc6202966cbdbcf (diff) | |
| download | gdb-0548f7c35e5197f5cf9e2a58a35485f7f2cdb032.tar.gz | |
PR backtrace/1760
* frame.c (backtrace_limit): Change type to int.
(get_prev_frame): Update backtrace limit support.
(_initialize_frame): Use add_setshow_integer_cmd for backtrace_limit.
Diffstat (limited to 'gdb/frame.c')
| -rw-r--r-- | gdb/frame.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/gdb/frame.c b/gdb/frame.c index d692f33f639..dcdf2994d0d 100644 --- a/gdb/frame.c +++ b/gdb/frame.c @@ -141,7 +141,7 @@ Whether backtraces should continue past the entry point of a program is %s.\n"), value); } -static unsigned int backtrace_limit = UINT_MAX; +static int backtrace_limit = INT_MAX; static void show_backtrace_limit (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) @@ -1258,9 +1258,16 @@ get_prev_frame (struct frame_info *this_frame) return NULL; } - if (this_frame->level > backtrace_limit) + /* If the user's backtrace limit has been exceeded, stop. We must + add two to the current level; one of those accounts for backtrace_limit + being 1-based and the level being 0-based, and the other accounts for + the level of the new frame instead of the level of the current + frame. */ + if (this_frame->level + 2 > backtrace_limit) { - error (_("Backtrace limit of %d exceeded"), backtrace_limit); + frame_debug_got_null_frame (gdb_stdlog, this_frame, + "backtrace limit exceeded"); + return NULL; } /* If we're already inside the entry function for the main objfile, @@ -1610,16 +1617,16 @@ the rest of the stack trace."), &set_backtrace_cmdlist, &show_backtrace_cmdlist); - add_setshow_uinteger_cmd ("limit", class_obscure, - &backtrace_limit, _("\ + add_setshow_integer_cmd ("limit", class_obscure, + &backtrace_limit, _("\ Set an upper bound on the number of backtrace levels."), _("\ Show the upper bound on the number of backtrace levels."), _("\ No more than the specified number of frames can be displayed or examined.\n\ Zero is unlimited."), - NULL, - show_backtrace_limit, - &set_backtrace_cmdlist, - &show_backtrace_cmdlist); + NULL, + show_backtrace_limit, + &set_backtrace_cmdlist, + &show_backtrace_cmdlist); /* Debug this files internals. */ add_setshow_zinteger_cmd ("frame", class_maintenance, &frame_debug, _("\ |