| /* MI Command Set - stack commands. |
| Copyright (C) 2000, 2002, 2003, 2004, 2005, 2007 |
| Free Software Foundation, Inc. |
| Contributed by Cygnus Solutions (a Red Hat company). |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #include "defs.h" |
| #include "target.h" |
| #include "frame.h" |
| #include "value.h" |
| #include "mi-cmds.h" |
| #include "ui-out.h" |
| #include "symtab.h" |
| #include "block.h" |
| #include "stack.h" |
| #include "dictionary.h" |
| #include "gdb_string.h" |
| |
| static void list_args_or_locals (int locals, int values, struct frame_info *fi); |
| |
| /* Print a list of the stack frames. Args can be none, in which case |
| we want to print the whole backtrace, or a pair of numbers |
| specifying the frame numbers at which to start and stop the |
| display. If the two numbers are equal, a single frame will be |
| displayed. */ |
| enum mi_cmd_result |
| mi_cmd_stack_list_frames (char *command, char **argv, int argc) |
| { |
| int frame_low; |
| int frame_high; |
| int i; |
| struct cleanup *cleanup_stack; |
| struct frame_info *fi; |
| |
| if (argc > 2 || argc == 1) |
| error (_("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]")); |
| |
| if (argc == 2) |
| { |
| frame_low = atoi (argv[0]); |
| frame_high = atoi (argv[1]); |
| } |
| else |
| { |
| /* Called with no arguments, it means we want the whole |
| backtrace. */ |
| frame_low = -1; |
| frame_high = -1; |
| } |
| |
| /* Let's position fi on the frame at which to start the |
| display. Could be the innermost frame if the whole stack needs |
| displaying, or if frame_low is 0. */ |
| for (i = 0, fi = get_current_frame (); |
| fi && i < frame_low; |
| i++, fi = get_prev_frame (fi)); |
| |
| if (fi == NULL) |
| error (_("mi_cmd_stack_list_frames: Not enough frames in stack.")); |
| |
| cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack"); |
| |
| /* Now let;s print the frames up to frame_high, or until there are |
| frames in the stack. */ |
| for (; |
| fi && (i <= frame_high || frame_high == -1); |
| i++, fi = get_prev_frame (fi)) |
| { |
| QUIT; |
| /* Print the location and the address always, even for level 0. |
| args == 0: don't print the arguments. */ |
| print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ ); |
| } |
| |
| do_cleanups (cleanup_stack); |
| |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_stack_info_depth (char *command, char **argv, int argc) |
| { |
| int frame_high; |
| int i; |
| struct frame_info *fi; |
| |
| if (argc > 1) |
| error (_("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]")); |
| |
| if (argc == 1) |
| frame_high = atoi (argv[0]); |
| else |
| /* Called with no arguments, it means we want the real depth of |
| the stack. */ |
| frame_high = -1; |
| |
| for (i = 0, fi = get_current_frame (); |
| fi && (i < frame_high || frame_high == -1); |
| i++, fi = get_prev_frame (fi)) |
| QUIT; |
| |
| ui_out_field_int (uiout, "depth", i); |
| |
| return MI_CMD_DONE; |
| } |
| |
| /* Print a list of the locals for the current frame. With argument of |
| 0, print only the names, with argument of 1 print also the |
| values. */ |
| enum mi_cmd_result |
| mi_cmd_stack_list_locals (char *command, char **argv, int argc) |
| { |
| struct frame_info *frame; |
| enum print_values print_values; |
| |
| if (argc != 1) |
| error (_("mi_cmd_stack_list_locals: Usage: PRINT_VALUES")); |
| |
| frame = get_selected_frame (NULL); |
| |
| if (strcmp (argv[0], "0") == 0 |
| || strcmp (argv[0], mi_no_values) == 0) |
| print_values = PRINT_NO_VALUES; |
| else if (strcmp (argv[0], "1") == 0 |
| || strcmp (argv[0], mi_all_values) == 0) |
| print_values = PRINT_ALL_VALUES; |
| else if (strcmp (argv[0], "2") == 0 |
| || strcmp (argv[0], mi_simple_values) == 0) |
| print_values = PRINT_SIMPLE_VALUES; |
| else |
| error (_("Unknown value for PRINT_VALUES: must be: \ |
| 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""), |
| mi_no_values, mi_all_values, mi_simple_values); |
| list_args_or_locals (1, print_values, frame); |
| return MI_CMD_DONE; |
| } |
| |
| /* Print a list of the arguments for the current frame. With argument |
| of 0, print only the names, with argument of 1 print also the |
| values. */ |
| enum mi_cmd_result |
| mi_cmd_stack_list_args (char *command, char **argv, int argc) |
| { |
| int frame_low; |
| int frame_high; |
| int i; |
| struct frame_info *fi; |
| struct cleanup *cleanup_stack_args; |
| |
| if (argc < 1 || argc > 3 || argc == 2) |
| error (_("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]")); |
| |
| if (argc == 3) |
| { |
| frame_low = atoi (argv[1]); |
| frame_high = atoi (argv[2]); |
| } |
| else |
| { |
| /* Called with no arguments, it means we want args for the whole |
| backtrace. */ |
| frame_low = -1; |
| frame_high = -1; |
| } |
| |
| /* Let's position fi on the frame at which to start the |
| display. Could be the innermost frame if the whole stack needs |
| displaying, or if frame_low is 0. */ |
| for (i = 0, fi = get_current_frame (); |
| fi && i < frame_low; |
| i++, fi = get_prev_frame (fi)); |
| |
| if (fi == NULL) |
| error (_("mi_cmd_stack_list_args: Not enough frames in stack.")); |
| |
| cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args"); |
| |
| /* Now let's print the frames up to frame_high, or until there are |
| frames in the stack. */ |
| for (; |
| fi && (i <= frame_high || frame_high == -1); |
| i++, fi = get_prev_frame (fi)) |
| { |
| struct cleanup *cleanup_frame; |
| QUIT; |
| cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
| ui_out_field_int (uiout, "level", i); |
| list_args_or_locals (0, atoi (argv[0]), fi); |
| do_cleanups (cleanup_frame); |
| } |
| |
| do_cleanups (cleanup_stack_args); |
| |
| return MI_CMD_DONE; |
| } |
| |
| /* Print a list of the locals or the arguments for the currently |
| selected frame. If the argument passed is 0, printonly the names |
| of the variables, if an argument of 1 is passed, print the values |
| as well. */ |
| static void |
| list_args_or_locals (int locals, int values, struct frame_info *fi) |
| { |
| struct block *block; |
| struct symbol *sym; |
| struct dict_iterator iter; |
| int nsyms; |
| struct cleanup *cleanup_list; |
| static struct ui_stream *stb = NULL; |
| struct type *type; |
| |
| stb = ui_out_stream_new (uiout); |
| |
| block = get_frame_block (fi, 0); |
| |
| cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args"); |
| |
| while (block != 0) |
| { |
| ALL_BLOCK_SYMBOLS (block, iter, sym) |
| { |
| int print_me = 0; |
| |
| switch (SYMBOL_CLASS (sym)) |
| { |
| default: |
| case LOC_UNDEF: /* catches errors */ |
| case LOC_CONST: /* constant */ |
| case LOC_TYPEDEF: /* local typedef */ |
| case LOC_LABEL: /* local label */ |
| case LOC_BLOCK: /* local function */ |
| case LOC_CONST_BYTES: /* loc. byte seq. */ |
| case LOC_UNRESOLVED: /* unresolved static */ |
| case LOC_OPTIMIZED_OUT: /* optimized out */ |
| print_me = 0; |
| break; |
| |
| case LOC_ARG: /* argument */ |
| case LOC_REF_ARG: /* reference arg */ |
| case LOC_REGPARM: /* register arg */ |
| case LOC_REGPARM_ADDR: /* indirect register arg */ |
| case LOC_LOCAL_ARG: /* stack arg */ |
| case LOC_BASEREG_ARG: /* basereg arg */ |
| case LOC_COMPUTED_ARG: /* arg with computed location */ |
| if (!locals) |
| print_me = 1; |
| break; |
| |
| case LOC_LOCAL: /* stack local */ |
| case LOC_BASEREG: /* basereg local */ |
| case LOC_STATIC: /* static */ |
| case LOC_REGISTER: /* register */ |
| case LOC_COMPUTED: /* computed location */ |
| if (locals) |
| print_me = 1; |
| break; |
| } |
| if (print_me) |
| { |
| struct cleanup *cleanup_tuple = NULL; |
| struct symbol *sym2; |
| struct value *val; |
| if (values != PRINT_NO_VALUES) |
| cleanup_tuple = |
| make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
| ui_out_field_string (uiout, "name", SYMBOL_PRINT_NAME (sym)); |
| |
| if (!locals) |
| sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym), |
| block, VAR_DOMAIN, |
| (int *) NULL, |
| (struct symtab **) NULL); |
| else |
| sym2 = sym; |
| switch (values) |
| { |
| case PRINT_SIMPLE_VALUES: |
| type = check_typedef (sym2->type); |
| type_print (sym2->type, "", stb->stream, -1); |
| ui_out_field_stream (uiout, "type", stb); |
| if (TYPE_CODE (type) != TYPE_CODE_ARRAY |
| && TYPE_CODE (type) != TYPE_CODE_STRUCT |
| && TYPE_CODE (type) != TYPE_CODE_UNION) |
| { |
| val = read_var_value (sym2, fi); |
| common_val_print |
| (val, stb->stream, 0, 1, 0, Val_no_prettyprint); |
| ui_out_field_stream (uiout, "value", stb); |
| } |
| do_cleanups (cleanup_tuple); |
| break; |
| case PRINT_ALL_VALUES: |
| val = read_var_value (sym2, fi); |
| common_val_print |
| (val, stb->stream, 0, 1, 0, Val_no_prettyprint); |
| ui_out_field_stream (uiout, "value", stb); |
| do_cleanups (cleanup_tuple); |
| break; |
| } |
| } |
| } |
| if (BLOCK_FUNCTION (block)) |
| break; |
| else |
| block = BLOCK_SUPERBLOCK (block); |
| } |
| do_cleanups (cleanup_list); |
| ui_out_stream_delete (stb); |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_stack_select_frame (char *command, char **argv, int argc) |
| { |
| if (argc == 0 || argc > 1) |
| error (_("mi_cmd_stack_select_frame: Usage: FRAME_SPEC")); |
| |
| select_frame_command (argv[0], 1 /* not used */ ); |
| return MI_CMD_DONE; |
| } |
| |
| enum mi_cmd_result |
| mi_cmd_stack_info_frame (char *command, char **argv, int argc) |
| { |
| if (argc > 0) |
| error (_("mi_cmd_stack_info_frame: No arguments required")); |
| |
| print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0); |
| return MI_CMD_DONE; |
| } |