diff options
Diffstat (limited to 'gdb/breakpoint.c')
| -rw-r--r-- | gdb/breakpoint.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c index 2a5e81f..e50c99a 100644 --- a/gdb/breakpoint.c +++ b/gdb/breakpoint.c @@ -403,6 +403,8 @@ int default_breakpoint_line; Currently the string can either be a number or "$" followed by the name of a convenience variable. Making it an expression wouldn't work well for map_breakpoint_numbers (e.g. "4 + 5 + 6"). + + If the string is a NULL pointer, that denotes the last breakpoint. TRAILER is a character which can be found after the number; most commonly this is `-'. If you don't want a trailer, use \0. */ @@ -647,6 +649,52 @@ commands_command (char *arg, int from_tty) } error (_("No breakpoint number %d."), bnum); } + +/* Like commands_command, but instead of reading the commands from + input stream, takes them from an already parsed command structure. + + This is used by cli-script.c to DTRT with breakpoint commands + that are part of if and while bodies. */ +enum command_control_type +commands_from_control_command (char *arg, struct command_line *cmd) +{ + struct breakpoint *b; + char *p; + int bnum; + + /* If we allowed this, we would have problems with when to + free the storage, if we change the commands currently + being read from. */ + + if (executing_breakpoint_commands) + error (_("Can't use the \"commands\" command among a breakpoint's commands.")); + + /* An empty string for the breakpoint number means the last + breakpoint, but get_number expects a NULL pointer. */ + if (arg && !*arg) + p = NULL; + else + p = arg; + bnum = get_number (&p); + + if (p && *p) + error (_("Unexpected extra arguments following breakpoint number.")); + + ALL_BREAKPOINTS (b) + if (b->number == bnum) + { + free_command_lines (&b->commands); + if (cmd->body_count != 1) + error (_("Invalid \"commands\" block structure.")); + /* We need to copy the commands because if/while will free the + list after it finishes execution. */ + b->commands = copy_command_lines (cmd->body_list[0]); + breakpoints_changed (); + breakpoint_modify_event (b->number); + return simple_control; + } + error (_("No breakpoint number %d."), bnum); +} /* Like target_read_memory() but if breakpoints are inserted, return the shadow contents instead of the breakpoints themselves. |