+2010-09-16 Phil Muldoon <pmuldoon@redhat.com>
+
+ PR mi/11407
+ * mi/mi-cmd-stack.c (list_args_or_locals): Catch exceptions from
+ read_var_value and common_val_print and print a warning.
+
2010-09-15 Jan Kratochvil <jan.kratochvil@redhat.com>
* MAINTAINERS (GLOBAL MAINTAINERS) <Jan Kratochvil>: Move the entry to
#include "gdb_string.h"
#include "language.h"
#include "valprint.h"
-
+#include "exceptions.h"
enum what_to_list { locals, arguments, all };
&& TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION)
{
- struct value_print_options opts;
-
- val = read_var_value (sym2, fi);
- get_raw_print_options (&opts);
- opts.deref_ref = 1;
- common_val_print
- (val, stb->stream, 0, &opts,
- language_def (SYMBOL_LANGUAGE (sym2)));
+ volatile struct gdb_exception except;
+
+ TRY_CATCH (except, RETURN_MASK_ERROR)
+ {
+ struct value_print_options opts;
+
+ val = read_var_value (sym2, fi);
+ get_raw_print_options (&opts);
+ opts.deref_ref = 1;
+ common_val_print
+ (val, stb->stream, 0, &opts,
+ language_def (SYMBOL_LANGUAGE (sym2)));
+ }
+ if (except.reason < 0)
+ fprintf_filtered (stb->stream,
+ _("<error reading variable: %s>"),
+ except.message);
+
ui_out_field_stream (uiout, "value", stb);
}
break;
case PRINT_ALL_VALUES:
{
- struct value_print_options opts;
-
- val = read_var_value (sym2, fi);
- get_raw_print_options (&opts);
- opts.deref_ref = 1;
- common_val_print
- (val, stb->stream, 0, &opts,
- language_def (SYMBOL_LANGUAGE (sym2)));
+ volatile struct gdb_exception except;
+
+ TRY_CATCH (except, RETURN_MASK_ERROR)
+ {
+ struct value_print_options opts;
+
+ val = read_var_value (sym2, fi);
+ get_raw_print_options (&opts);
+ opts.deref_ref = 1;
+ common_val_print
+ (val, stb->stream, 0, &opts,
+ language_def (SYMBOL_LANGUAGE (sym2)));
+ }
+ if (except.reason < 0)
+ fprintf_filtered (stb->stream,
+ _("<error reading variable: %s>"),
+ except.message);
+
ui_out_field_stream (uiout, "value", stb);
}
break;
+2010-09-16 Phil Muldoon <pmuldoon@redhat.com>
+ Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ PR mi/11407
+ * gdb.mi/dw2-ref-missing-frame-func.c: New File.
+ * gdb.mi/dw2-ref-missing-frame-main.c New File.
+ * gdb.mi/dw2-ref-missing-frame.S New File.
+ * gdb.mi/dw2-ref-missing-frame.exp New File.
+
2010-09-14 Tom Tromey <tromey@redhat.com>
PR symtab/8399:
--- /dev/null
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2010 Free Software Foundation, Inc.
+
+ 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 3 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, see <http://www.gnu.org/licenses/>. */
+
+asm (".globl cu_text_start");
+asm ("cu_text_start:");
+
+asm (".globl func_nofb_start");
+asm ("func_nofb_start:");
+
+void
+func_nofb (void)
+{
+ /* int func_nofb_var; */
+ /* int func_nofb_var2; */
+
+ extern void func_nofb_marker (void);
+ func_nofb_marker ();
+}
+
+asm (".globl func_nofb_end");
+asm ("func_nofb_end:");
+
+asm (".globl func_loopfb_start");
+asm ("func_loopfb_start:");
+
+void
+func_loopfb (void)
+{
+ /* int func_loopfb_var; */
+ /* int func_loopfb_var2; */
+
+ extern void func_loopfb_marker (void);
+ func_loopfb_marker ();
+}
+
+asm (".globl func_loopfb_end");
+asm ("func_loopfb_end:");
+
+asm (".globl cu_text_end");
+asm ("cu_text_end:");
--- /dev/null
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2009, 2010 Free Software Foundation, Inc.
+
+ 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 3 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, see <http://www.gnu.org/licenses/>. */
+
+extern void func_nofb (void);
+extern void func_loopfb (void);
+
+void
+func_nofb_marker (void)
+{
+}
+
+void
+func_loopfb_marker (void)
+{
+}
+
+int
+main (void)
+{
+ int main_var = 1;
+
+ func_nofb ();
+ func_loopfb ();
+
+ return 0;
+}
--- /dev/null
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+ 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 3 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, see <http://www.gnu.org/licenses/>. */
+
+/* Debug information */
+
+ .section .debug_info
+.Lcu1_begin:
+ /* CU header */
+ .4byte .Lcu1_end - .Lcu1_start /* Length of Compilation Unit */
+.Lcu1_start:
+ .2byte 2 /* DWARF Version */
+ .4byte .Labbrev1_begin /* Offset into abbrev section */
+ .byte 4 /* Pointer size */
+
+ /* CU die */
+ .uleb128 1 /* Abbrev: DW_TAG_compile_unit */
+ .4byte cu_text_end /* DW_AT_high_pc */
+ .4byte cu_text_start /* DW_AT_low_pc */
+ .ascii "file1.txt\0" /* DW_AT_name */
+ .ascii "GNU C 3.3.3\0" /* DW_AT_producer */
+ .byte 1 /* DW_AT_language (C) */
+
+.Ltype_int:
+ .uleb128 3 /* Abbrev: DW_TAG_base_type */
+ .ascii "int\0" /* DW_AT_name */
+ .byte 4 /* DW_AT_byte_size */
+ .byte 5 /* DW_AT_encoding */
+
+ /* func_nofb */
+ .uleb128 5 /* Abbrev: DW_TAG_subprogram (no fb) */
+ .ascii "func_nofb\0" /* DW_AT_name */
+ .4byte func_nofb_start /* DW_AT_low_pc */
+ .4byte func_nofb_end /* DW_AT_high_pc */
+
+ .uleb128 7 /* Abbrev: DW_TAG_variable (location) */
+ .ascii "func_nofb_var\0" /* DW_AT_name */
+ .byte 2f - 1f /* DW_AT_location */
+1: .byte 0x91 /* DW_OP_fbreg */
+ .sleb128 0 /* 0 */
+2: .4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
+
+ .uleb128 7 /* Abbrev: DW_TAG_variable (location) */
+ .ascii "func_nofb_var2\0" /* DW_AT_name */
+ .byte 2f - 1f /* DW_AT_location */
+1: .byte 0x91 /* DW_OP_fbreg */
+ .sleb128 0 /* 0 */
+2: .4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
+
+ .byte 0 /* End of children of func */
+
+ /* func_loopfb */
+ .uleb128 6 /* Abbrev: DW_TAG_subprogram (loop fb) */
+ .ascii "func_loopfb\0" /* DW_AT_name */
+ .4byte func_loopfb_start /* DW_AT_low_pc */
+ .4byte func_loopfb_end /* DW_AT_high_pc */
+ .byte 2f - 1f /* DW_AT_frame_base */
+1: .byte 0x91 /* DW_OP_fbreg */
+ .sleb128 0 /* 0 */
+2:
+
+ .uleb128 7 /* Abbrev: DW_TAG_variable (location) */
+ .ascii "func_loopfb_var\0" /* DW_AT_name */
+ .byte 2f - 1f /* DW_AT_location */
+1: .byte 0x91 /* DW_OP_fbreg */
+ .sleb128 0 /* 0 */
+2: .4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
+
+ .uleb128 7 /* Abbrev: DW_TAG_variable (location) */
+ .ascii "func_loopfb_var2\0" /* DW_AT_name */
+ .byte 2f - 1f /* DW_AT_location */
+1: .byte 0x91 /* DW_OP_fbreg */
+ .sleb128 0 /* 0 */
+2: .4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
+
+ .byte 0 /* End of children of func */
+
+ .byte 0 /* End of children of CU */
+
+.Lcu1_end:
+
+/* Abbrev table */
+ .section .debug_abbrev
+.Labbrev1_begin:
+ .uleb128 1 /* Abbrev code */
+ .uleb128 0x11 /* DW_TAG_compile_unit */
+ .byte 1 /* has_children */
+ .uleb128 0x12 /* DW_AT_high_pc */
+ .uleb128 0x1 /* DW_FORM_addr */
+ .uleb128 0x11 /* DW_AT_low_pc */
+ .uleb128 0x1 /* DW_FORM_addr */
+ .uleb128 0x3 /* DW_AT_name */
+ .uleb128 0x8 /* DW_FORM_string */
+ .uleb128 0x25 /* DW_AT_producer */
+ .uleb128 0x8 /* DW_FORM_string */
+ .uleb128 0x13 /* DW_AT_language */
+ .uleb128 0xb /* DW_FORM_data1 */
+ .byte 0x0 /* Terminator */
+ .byte 0x0 /* Terminator */
+
+ .uleb128 3 /* Abbrev code */
+ .uleb128 0x24 /* DW_TAG_base_type */
+ .byte 0 /* has_children */
+ .uleb128 0x3 /* DW_AT_name */
+ .uleb128 0x8 /* DW_FORM_string */
+ .uleb128 0xb /* DW_AT_byte_size */
+ .uleb128 0xb /* DW_FORM_data1 */
+ .uleb128 0x3e /* DW_AT_encoding */
+ .uleb128 0xb /* DW_FORM_data1 */
+ .byte 0x0 /* Terminator */
+ .byte 0x0 /* Terminator */
+
+ .uleb128 5 /* Abbrev code */
+ .uleb128 0x2e /* DW_TAG_subprogram (no fb) */
+ .byte 1 /* has_children */
+ .uleb128 0x3 /* DW_AT_name */
+ .uleb128 0x8 /* DW_FORM_string */
+ .uleb128 0x11 /* DW_AT_low_pc */
+ .uleb128 0x1 /* DW_FORM_addr */
+ .uleb128 0x12 /* DW_AT_high_pc */
+ .uleb128 0x1 /* DW_FORM_addr */
+ .byte 0x0 /* Terminator */
+ .byte 0x0 /* Terminator */
+
+ .uleb128 6 /* Abbrev code */
+ .uleb128 0x2e /* DW_TAG_subprogram (loop fb) */
+ .byte 1 /* has_children */
+ .uleb128 0x3 /* DW_AT_name */
+ .uleb128 0x8 /* DW_FORM_string */
+ .uleb128 0x11 /* DW_AT_low_pc */
+ .uleb128 0x1 /* DW_FORM_addr */
+ .uleb128 0x12 /* DW_AT_high_pc */
+ .uleb128 0x1 /* DW_FORM_addr */
+ .uleb128 0x40 /* DW_AT_frame_base */
+ .uleb128 0xa /* DW_FORM_block1 */
+ .byte 0x0 /* Terminator */
+ .byte 0x0 /* Terminator */
+
+ .uleb128 7 /* Abbrev code (location) */
+ .uleb128 0x34 /* DW_TAG_variable */
+ .byte 0 /* has_children */
+ .uleb128 0x3 /* DW_AT_name */
+ .uleb128 0x8 /* DW_FORM_string */
+ .uleb128 0x2 /* DW_AT_location */
+ .uleb128 0xa /* DW_FORM_block1 */
+ .uleb128 0x49 /* DW_AT_type */
+ .uleb128 0x13 /* DW_FORM_ref4 */
+ .byte 0x0 /* Terminator */
+ .byte 0x0 /* Terminator */
+
+ .byte 0x0 /* Terminator */
+ .byte 0x0 /* Terminator */
--- /dev/null
+# Copyright 2008, 2009, 2010 Free Software Foundation, Inc.
+
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+# For now pick a sampling of likely targets.
+load_lib mi-support.exp
+set MIFLAGS "-i=mi"
+
+if {![istarget *-*-linux*]
+ && ![istarget *-*-gnu*]
+ && ![istarget *-*-elf*]
+ && ![istarget *-*-openbsd*]
+ && ![istarget arm-*-eabi*]
+ && ![istarget powerpc-*-eabi*]} {
+ return 0
+}
+
+set testfile "dw2-ref-missing-frame"
+set srcsfile ${testfile}.S
+set objsfile ${objdir}/${subdir}/${testfile}.o
+set srcfuncfile ${testfile}-func.c
+set objfuncfile ${objdir}/${subdir}/${testfile}-func.o
+set srcmainfile ${testfile}-main.c
+set objmainfile ${objdir}/${subdir}/${testfile}-main.o
+set executable ${testfile}
+set binfile ${objdir}/${subdir}/${executable}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcsfile}" $objsfile object {}] != ""
+ || [gdb_compile "${srcdir}/${subdir}/${srcfuncfile}" $objfuncfile object {}] != ""
+ || [gdb_compile "${srcdir}/${subdir}/${srcmainfile}" $objmainfile object {debug}] != ""
+ || [gdb_compile "$objsfile $objfuncfile $objmainfile" $binfile executable {}] != "" } {
+ return -1
+}
+
+if [mi_gdb_start] {
+ continue
+}
+
+mi_delete_breakpoints
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_load ${binfile}
+
+if [mi_runto func_nofb_marker] {
+ # First try referencing DW_AT_frame_base which is not defined.
+ mi_gdb_test "300-stack-list-locals --thread 1 --frame 1 --all-values" \
+ "300\\^done,locals=\\\[\{name=\"func_nofb_var\",value=\"\\\<error reading variable: Could not find the frame base for \\\\\"func_nofb\\\\\"\\\.\\\>\"\},\{name=\"func_nofb_var2\",value=\"\\\<error reading variable: Could not find the frame base for \\\\\"func_nofb\\\\\"\\\.\\\>\"\}\\\].*" \
+ "test func_nofb_marker"
+}
+
+# GDB could have crashed.
+mi_gdb_exit
+if [mi_gdb_start] {
+ continue
+}
+mi_delete_breakpoints
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_load ${binfile}
+
+# And now try referencing DW_AT_frame_base defined using a self-reference
+# (DW_OP_fbreg).
+if [mi_runto func_loopfb_marker] {
+ mi_gdb_test "301-stack-list-locals --thread 1 --frame 1 --all-values" \
+ "301\\^done,locals=\\\[\{name=\"func_loopfb_var\",value=\"\\\<error reading variable: DWARF-2 expression error: Loop detected.*\"\},\{name=\"func_loopfb_var2\",value=\"\\\<error reading variable: DWARF-2 expression error: Loop detected.*\"\}\\\]" \
+ "test func_loopfb_var"
+}
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