X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Fmi%2Fmi-cmd-stack.c;h=70ff0b601a6b5ea91b84b95b2069d3fe2c8d74fb;hb=645eab03a932e03adc9b34feba086835a38ea471;hp=a7a5a17b6ec70c8484c705fd3f11bc8e472fcef2;hpb=1ecb4ee0309ec7962314a8f98d45ac91be48aebf;p=binutils-gdb.git diff --git a/gdb/mi/mi-cmd-stack.c b/gdb/mi/mi-cmd-stack.c index a7a5a17b6ec..70ff0b601a6 100644 --- a/gdb/mi/mi-cmd-stack.c +++ b/gdb/mi/mi-cmd-stack.c @@ -1,12 +1,12 @@ /* MI Command Set - stack commands. - Copyright 2000, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. + Copyright (C) 2000-2013 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 + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -15,9 +15,7 @@ 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. */ + along with this program. If not, see . */ #include "defs.h" #include "target.h" @@ -30,15 +28,50 @@ #include "stack.h" #include "dictionary.h" #include "gdb_string.h" +#include "language.h" +#include "valprint.h" +#include "exceptions.h" +#include "utils.h" +#include "mi-getopt.h" +#include "python/python.h" +#include +#include "mi-parse.h" + +enum what_to_list { locals, arguments, all }; + +static void list_args_or_locals (enum what_to_list what, + enum print_values values, + struct frame_info *fi); + +/* True if we want to allow Python-based frame filters. */ +static int frame_filters = 0; + +void +mi_cmd_enable_frame_filters (char *command, char **argv, int argc) +{ + if (argc != 0) + error (_("-enable-frame-filters: no arguments allowed")); + frame_filters = 1; +} -static void list_args_or_locals (int locals, int values, struct frame_info *fi); +/* Parse the --no-frame-filters option in commands where we cannot use + mi_getopt. */ +static int +parse_no_frames_option (const char *arg) +{ + if (arg && (strcmp (arg, "--no-frame-filters") == 0)) + return 1; -/* Print a list of the stack frames. Args can be none, in which case + return 0; +} + +/* 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 + display. If the two numbers are equal, a single frame will be + displayed. */ + +void mi_cmd_stack_list_frames (char *command, char **argv, int argc) { int frame_low; @@ -46,55 +79,104 @@ mi_cmd_stack_list_frames (char *command, char **argv, int argc) int i; struct cleanup *cleanup_stack; struct frame_info *fi; + enum py_bt_status result = PY_BT_ERROR; + int raw_arg = 0; + int oind = 0; + enum opt + { + NO_FRAME_FILTERS + }; + static const struct mi_opt opts[] = + { + {"-no-frame-filters", NO_FRAME_FILTERS, 0}, + { 0, 0, 0 } + }; + + /* Parse arguments. In this instance we are just looking for + --no-frame-filters. */ + while (1) + { + char *oarg; + int opt = mi_getopt ("-stack-list-frames", argc, argv, + opts, &oind, &oarg); + if (opt < 0) + break; + switch ((enum opt) opt) + { + case NO_FRAME_FILTERS: + raw_arg = oind; + break; + } + } - if (argc > 2 || argc == 1) - error (_("mi_cmd_stack_list_frames: Usage: [FRAME_LOW FRAME_HIGH]")); + /* After the last option is parsed, there should either be low - + high range, or no further arguments. */ + if ((argc - oind != 0) && (argc - oind != 2)) + error (_("-stack-list-frames: Usage: [--no-frame-filters] [FRAME_LOW FRAME_HIGH]")); - if (argc == 2) + /* If there is a range, set it. */ + if (argc - oind == 2) { - frame_low = atoi (argv[0]); - frame_high = atoi (argv[1]); + frame_low = atoi (argv[0 + oind]); + frame_high = atoi (argv[1 + oind]); } else { /* Called with no arguments, it means we want the whole - backtrace. */ + 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. */ + 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.")); + error (_("-stack-list-frames: Not enough frames in stack.")); - cleanup_stack = make_cleanup_ui_out_list_begin_end (uiout, "stack"); + cleanup_stack = make_cleanup_ui_out_list_begin_end (current_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)) + if (! raw_arg && frame_filters) { - 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 */ ); + int flags = PRINT_LEVEL | PRINT_FRAME_INFO; + int py_frame_low = frame_low; + + /* We cannot pass -1 to frame_low, as that would signify a + relative backtrace from the tail of the stack. So, in the case + of frame_low == -1, assign and increment it. */ + if (py_frame_low == -1) + py_frame_low++; + + result = apply_frame_filter (get_current_frame (), flags, + NO_VALUES, current_uiout, + py_frame_low, frame_high); } - do_cleanups (cleanup_stack); - if (i < frame_high) - error (_("mi_cmd_stack_list_frames: Not enough frames in stack.")); + /* Run the inbuilt backtrace if there are no filters registered, or + if "--no-frame-filters" has been specified from the command. */ + if (! frame_filters || raw_arg || result == PY_BT_NO_FILTERS) + { + /* 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. + If args is 0, don't print the arguments. */ + print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ ); + } + } - return MI_CMD_DONE; + do_cleanups (cleanup_stack); } -enum mi_cmd_result +void mi_cmd_stack_info_depth (char *command, char **argv, int argc) { int frame_high; @@ -102,13 +184,13 @@ mi_cmd_stack_info_depth (char *command, char **argv, int argc) struct frame_info *fi; if (argc > 1) - error (_("mi_cmd_stack_info_depth: Usage: [MAX_DEPTH]")); + error (_("-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. */ + the stack. */ frame_high = -1; for (i = 0, fi = get_current_frame (); @@ -116,46 +198,82 @@ mi_cmd_stack_info_depth (char *command, char **argv, int argc) i++, fi = get_prev_frame (fi)) QUIT; - ui_out_field_int (uiout, "depth", i); - - return MI_CMD_DONE; + ui_out_field_int (current_uiout, "depth", i); } -/* Print a list of the locals for the current frame. With argument of +/* 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 + values. */ + +void mi_cmd_stack_list_locals (char *command, char **argv, int argc) { struct frame_info *frame; - enum print_values print_values; + int raw_arg = 0; + enum py_bt_status result = PY_BT_ERROR; + int print_value; + int oind = 0; + + if (argc > 1) + { + int i; + enum opt + { + NO_FRAME_FILTERS + }; + static const struct mi_opt opts[] = + { + {"-no-frame-filters", NO_FRAME_FILTERS, 0}, + { 0, 0, 0 } + }; - if (argc != 1) - error (_("mi_cmd_stack_list_locals: Usage: PRINT_VALUES")); + while (1) + { + char *oarg; + /* Don't parse 'print-values' as an option. */ + int opt = mi_getopt ("-stack-list-locals", argc - 1, argv, + opts, &oind, &oarg); + + if (opt < 0) + break; + switch ((enum opt) opt) + { + case NO_FRAME_FILTERS: + raw_arg = oind; + break; + } + } + } - frame = get_selected_frame (NULL); + /* After the last option is parsed, there should be only + 'print-values'. */ + if (argc - oind != 1) + error (_("-stack-list-locals: Usage: [--no-frame-filters] PRINT_VALUES")); + + frame = get_selected_frame (NULL); + print_value = mi_parse_print_values (argv[oind]); - 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; + if (! raw_arg && frame_filters) + { + int flags = PRINT_LEVEL | PRINT_LOCALS; + + result = apply_frame_filter (frame, flags, print_value, + current_uiout, 0, 0); + } + + /* Run the inbuilt backtrace if there are no filters registered, or + if "--no-frame-filters" has been specified from the command. */ + if (! frame_filters || raw_arg || result == PY_BT_NO_FILTERS) + { + list_args_or_locals (locals, print_value, frame); + } } -/* Print a list of the arguments for the current frame. With argument +/* 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 + values. */ + +void mi_cmd_stack_list_args (char *command, char **argv, int argc) { int frame_low; @@ -163,76 +281,263 @@ mi_cmd_stack_list_args (char *command, char **argv, int argc) int i; struct frame_info *fi; struct cleanup *cleanup_stack_args; + enum print_values print_values; + struct ui_out *uiout = current_uiout; + int raw_arg = 0; + enum py_bt_status result = PY_BT_ERROR; + + if (argc > 0) + raw_arg = parse_no_frames_option (argv[0]); - if (argc < 1 || argc > 3 || argc == 2) - error (_("mi_cmd_stack_list_args: Usage: PRINT_VALUES [FRAME_LOW FRAME_HIGH]")); + if (argc < 1 || (argc > 3 && ! raw_arg) || (argc == 2 && ! raw_arg)) + error (_("-stack-list-arguments: Usage: " \ + "[--no-frame-filters] PRINT_VALUES [FRAME_LOW FRAME_HIGH]")); - if (argc == 3) + if (argc >= 3) { - frame_low = atoi (argv[1]); - frame_high = atoi (argv[2]); + frame_low = atoi (argv[1 + raw_arg]); + frame_high = atoi (argv[2 + raw_arg]); } else { /* Called with no arguments, it means we want args for the whole - backtrace. */ + backtrace. */ frame_low = -1; frame_high = -1; } + print_values = mi_parse_print_values (argv[raw_arg]); + /* 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. */ + 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.")); + error (_("-stack-list-arguments: Not enough frames in stack.")); - cleanup_stack_args = make_cleanup_ui_out_list_begin_end (uiout, "stack-args"); + 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)) + if (! raw_arg && frame_filters) { - 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); + int flags = PRINT_LEVEL | PRINT_ARGS; + int py_frame_low = frame_low; + + /* We cannot pass -1 to frame_low, as that would signify a + relative backtrace from the tail of the stack. So, in the case + of frame_low == -1, assign and increment it. */ + if (py_frame_low == -1) + py_frame_low++; + + result = apply_frame_filter (get_current_frame (), flags, + print_values, current_uiout, + py_frame_low, frame_high); } + /* Run the inbuilt backtrace if there are no filters registered, or + if "--no-frame-filters" has been specified from the command. */ + if (! frame_filters || raw_arg || result == PY_BT_NO_FILTERS) + { + /* 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 (arguments, print_values, 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 local variables (including arguments) for the + current frame. ARGC must be 1 and ARGV[0] specify if only the names, + or both names and values of the variables must be printed. See + parse_print_value for possible values. */ + +void +mi_cmd_stack_list_variables (char *command, char **argv, int argc) +{ + struct frame_info *frame; + int raw_arg = 0; + enum py_bt_status result = PY_BT_ERROR; + int print_value; + int oind = 0; + + if (argc > 1) + { + int i; + enum opt + { + NO_FRAME_FILTERS + }; + static const struct mi_opt opts[] = + { + {"-no-frame-filters", NO_FRAME_FILTERS, 0}, + { 0, 0, 0 } + }; + + while (1) + { + char *oarg; + /* Don't parse 'print-values' as an option. */ + int opt = mi_getopt ("-stack-list-variables", argc - 1, + argv, opts, &oind, &oarg); + if (opt < 0) + break; + switch ((enum opt) opt) + { + case NO_FRAME_FILTERS: + raw_arg = oind; + break; + } + } + } + + /* After the last option is parsed, there should be only + 'print-values'. */ + if (argc - oind != 1) + error (_("-stack-list-variables: Usage: " \ + "[--no-frame-filters] PRINT_VALUES")); + + frame = get_selected_frame (NULL); + print_value = mi_parse_print_values (argv[oind]); + + if (! raw_arg && frame_filters) + { + int flags = PRINT_LEVEL | PRINT_ARGS | PRINT_LOCALS; + + result = apply_frame_filter (frame, flags, print_value, + current_uiout, 0, 0); + } + + /* Run the inbuilt backtrace if there are no filters registered, or + if "--no-frame-filters" has been specified from the command. */ + if (! frame_filters || raw_arg || result == PY_BT_NO_FILTERS) + { + list_args_or_locals (all, print_value, frame); + } +} + +/* Print single local or argument. ARG must be already read in. For + WHAT and VALUES see list_args_or_locals. + + Errors are printed as if they would be the parameter value. Use + zeroed ARG iff it should not be printed according to VALUES. */ + +static void +list_arg_or_local (const struct frame_arg *arg, enum what_to_list what, + enum print_values values) +{ + struct cleanup *old_chain; + struct ui_out *uiout = current_uiout; + struct ui_file *stb; + + stb = mem_fileopen (); + old_chain = make_cleanup_ui_file_delete (stb); + + gdb_assert (!arg->val || !arg->error); + gdb_assert ((values == PRINT_NO_VALUES && arg->val == NULL + && arg->error == NULL) + || values == PRINT_SIMPLE_VALUES + || (values == PRINT_ALL_VALUES + && (arg->val != NULL || arg->error != NULL))); + gdb_assert (arg->entry_kind == print_entry_values_no + || (arg->entry_kind == print_entry_values_only + && (arg->val || arg->error))); + + if (values != PRINT_NO_VALUES || what == all) + make_cleanup_ui_out_tuple_begin_end (uiout, NULL); + + fputs_filtered (SYMBOL_PRINT_NAME (arg->sym), stb); + if (arg->entry_kind == print_entry_values_only) + fputs_filtered ("@entry", stb); + ui_out_field_stream (uiout, "name", stb); + + if (what == all && SYMBOL_IS_ARGUMENT (arg->sym)) + ui_out_field_int (uiout, "arg", 1); + + if (values == PRINT_SIMPLE_VALUES) + { + check_typedef (arg->sym->type); + type_print (arg->sym->type, "", stb, -1); + ui_out_field_stream (uiout, "type", stb); + } + + if (arg->val || arg->error) + { + volatile struct gdb_exception except; + + if (arg->error) + except.message = arg->error; + else + { + /* TRY_CATCH has two statements, wrap it in a block. */ + + TRY_CATCH (except, RETURN_MASK_ERROR) + { + struct value_print_options opts; + + get_no_prettyformat_print_options (&opts); + opts.deref_ref = 1; + common_val_print (arg->val, stb, 0, &opts, + language_def (SYMBOL_LANGUAGE (arg->sym))); + } + } + if (except.message) + fprintf_filtered (stb, _(""), + except.message); + ui_out_field_stream (uiout, "value", stb); + } + + do_cleanups (old_chain); } /* 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. */ + as well. */ + static void -list_args_or_locals (int locals, int values, struct frame_info *fi) +list_args_or_locals (enum what_to_list what, enum print_values values, + struct frame_info *fi) { struct block *block; struct symbol *sym; - struct dict_iterator iter; - int nsyms; + struct block_iterator iter; struct cleanup *cleanup_list; - static struct ui_stream *stb = NULL; struct type *type; - - stb = ui_out_stream_new (uiout); + char *name_of_result; + struct ui_out *uiout = current_uiout; block = get_frame_block (fi, 0); - cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, locals ? "locals" : "args"); + switch (what) + { + case locals: + name_of_result = "locals"; + break; + case arguments: + name_of_result = "args"; + break; + case all: + name_of_result = "variables"; + break; + default: + internal_error (__FILE__, __LINE__, + "unexpected what_to_list: %d", (int) what); + } + + cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, name_of_result); while (block != 0) { @@ -256,88 +561,84 @@ list_args_or_locals (int locals, int values, struct frame_info *fi) 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) + if (what == all) print_me = 1; + else if (what == locals) + print_me = !SYMBOL_IS_ARGUMENT (sym); + else + print_me = SYMBOL_IS_ARGUMENT (sym); break; } if (print_me) { - struct cleanup *cleanup_tuple = NULL; struct symbol *sym2; - 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)); + struct frame_arg arg, entryarg; - if (!locals) - sym2 = lookup_symbol (SYMBOL_NATURAL_NAME (sym), + if (SYMBOL_IS_ARGUMENT (sym)) + sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), block, VAR_DOMAIN, - (int *) NULL, - (struct symtab **) NULL); + NULL); else - sym2 = sym; + sym2 = sym; + gdb_assert (sym2 != NULL); + + memset (&arg, 0, sizeof (arg)); + arg.sym = sym2; + arg.entry_kind = print_entry_values_no; + memset (&entryarg, 0, sizeof (entryarg)); + entryarg.sym = sym2; + entryarg.entry_kind = print_entry_values_no; + 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) { - print_variable_value (sym2, fi, stb->stream); - ui_out_field_stream (uiout, "value", stb); - } - do_cleanups (cleanup_tuple); - break; case PRINT_ALL_VALUES: - print_variable_value (sym2, fi, stb->stream); - ui_out_field_stream (uiout, "value", stb); - do_cleanups (cleanup_tuple); + read_frame_arg (sym2, fi, &arg, &entryarg); + } break; } + + if (arg.entry_kind != print_entry_values_only) + list_arg_or_local (&arg, what, values); + if (entryarg.entry_kind != print_entry_values_no) + list_arg_or_local (&entryarg, what, values); + xfree (arg.error); + xfree (entryarg.error); } } + if (BLOCK_FUNCTION (block)) break; else block = BLOCK_SUPERBLOCK (block); } do_cleanups (cleanup_list); - ui_out_stream_delete (stb); } -enum mi_cmd_result +void 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")); + error (_("-stack-select-frame: Usage: FRAME_SPEC")); select_frame_command (argv[0], 1 /* not used */ ); - return MI_CMD_DONE; } -enum mi_cmd_result +void mi_cmd_stack_info_frame (char *command, char **argv, int argc) { if (argc > 0) - error (_("mi_cmd_stack_info_frame: No arguments required")); - + error (_("-stack-info-frame: No arguments allowed")); + print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0); - return MI_CMD_DONE; }