| /* MI Command Set - stack commands. |
| Copyright 2000, 2002, 2003 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., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, 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" |
| |
| /* FIXME: these should go in some .h file but stack.c doesn't have a |
| corresponding .h file. These wrappers will be obsolete anyway, once |
| we pull the plug on the sanitization. */ |
| extern void select_frame_command_wrapper (char *, int); |
| |
| 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 (!target_has_stack) |
| error ("mi_cmd_stack_list_frames: No stack."); |
| |
| 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; |
| /* level == i: always print the level 'i' |
| source == LOC_AND_ADDRESS: print the location and the address |
| always, even for level 0. |
| args == 0: don't print the arguments. */ |
| print_frame_info (fi /* frame info */ , |
| i /* level */ , |
| LOC_AND_ADDRESS /* source */ , |
| 0 /* args */ ); |
| } |
| |
| do_cleanups (cleanup_stack); |
| if (i < frame_high) |
| error ("mi_cmd_stack_list_frames: Not enough frames in 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 (!target_has_stack) |
| error ("mi_cmd_stack_info_depth: No stack."); |
| |
| 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) |
| { |
| if (argc != 1) |
| error ("mi_cmd_stack_list_locals: Usage: PRINT_VALUES"); |
| |
| list_args_or_locals (1, atoi (argv[0]), deprecated_selected_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); |
| if (i < frame_high) |
| error ("mi_cmd_stack_list_args: Not enough frames in stack."); |
| |
| 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; |
| int i, nsyms; |
| struct cleanup *cleanup_list; |
| static struct ui_stream *stb = NULL; |
| |
| 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, i, 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; |
| if (values) |
| cleanup_tuple = |
| make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
| ui_out_field_string (uiout, "name", DEPRECATED_SYMBOL_NAME (sym)); |
| |
| if (values) |
| { |
| struct symbol *sym2; |
| if (!locals) |
| sym2 = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
| block, VAR_NAMESPACE, |
| (int *) NULL, |
| (struct symtab **) NULL); |
| else |
| sym2 = sym; |
| print_variable_value (sym2, fi, stb->stream); |
| ui_out_field_stream (uiout, "value", stb); |
| do_cleanups (cleanup_tuple); |
| } |
| } |
| } |
| 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 (!target_has_stack) |
| error ("mi_cmd_stack_select_frame: No stack."); |
| |
| if (argc > 1) |
| error ("mi_cmd_stack_select_frame: Usage: [FRAME_SPEC]"); |
| |
| /* with no args, don't change frame */ |
| if (argc == 0) |
| select_frame_command_wrapper (0, 1 /* not used */ ); |
| else |
| select_frame_command_wrapper (argv[0], 1 /* not used */ ); |
| return MI_CMD_DONE; |
| } |