gdb/

	* dwarf2read.c (dwarf2_const_value): Handle DW_FORM_strp.

gdb/testsuite/
	* gdb.dwarf2/dw2-strp.S, gdb.dwarf2/dw2-strp.exp: New files.

5 files changed, 208 insertions, 0 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ce3f532..fa31e44 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,9 @@
 2008-04-25  Pedro Alves  <pedro@codesourcery.com>
 
+	* dwarf2read.c (dwarf2_const_value): Handle DW_FORM_strp.
+
+2008-04-25  Pedro Alves  <pedro@codesourcery.com>
+
 	* amd64-tdep.c (amd64_get_longjmp_target): New.
 	(amd64_init_abi): Register amd64_get_longjmp_target as
 	gdbarch_get_longjmp_target callback.
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index dab4290..40eb412 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -7706,6 +7706,12 @@ dwarf2_const_value (struct attribute *attr, struct symbol *sym,
 			      DW_ADDR (attr));
       SYMBOL_CLASS (sym) = LOC_CONST_BYTES;
       break;
+    case DW_FORM_strp:
+      /* DW_STRING is already allocated on the obstack, point directly
+	 to it.  */
+      SYMBOL_VALUE_BYTES (sym) = (gdb_byte *) DW_STRING (attr);
+      SYMBOL_CLASS (sym) = LOC_CONST_BYTES;
+      break;
     case DW_FORM_block1:
     case DW_FORM_block2:
     case DW_FORM_block4:
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 1942198..e0f19d4 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2008-04-25  Pedro Alves  <pedro@codesourcery.com>
+
+	* gdb.dwarf2/dw2-strp.S, gdb.dwarf2/dw2-strp.exp: New files.
+
 2008-04-24  Vladimir Prus  <vladimir@codesourcery.com>
 
         * gdb.mi/mi-syn-frame.exp: Adjust for token disappearance.
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-strp.S b/gdb/testsuite/gdb.dwarf2/dw2-strp.S
new file mode 100644
index 0000000..ac89bb4
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/dw2-strp.S
@@ -0,0 +1,142 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2008 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:
+	.long		.Lcu1_end - .Lcu1_start	/* Length of Compilation Unit */
+.Lcu1_start:
+	.value		2			/* DWARF version number */
+	.long		.Ldebug_abbrev0		/* Offset Into Abbrev. Section */
+	.byte		4			/* Pointer Size (in bytes) */
+
+	/* CU die */
+	.uleb128	1			/* Abbrev: DW_TAG_compile_unit */
+	.long		.Lproducer		/* DW_AT_producer */
+	.byte		1			/* DW_AT_language (C) */
+
+.Larray_type:
+	.uleb128	2			/* Abbrev: DW_TAG_array_type */
+	.long		.Lchar_type-.Lcu1_begin	/* DW_AT_type */
+
+	.uleb128	3			/* Abbrev: DW_TAG_subrange_type */
+	.long		.Luint_type-.Lcu1_begin	/* DW_AT_type */
+	.byte		0xd			/* DW_AT_upper_bound */
+	.byte		0			/* End of children of die */
+
+.Luint_type:
+	.uleb128	4			/* Abbrev: DW_TAG_base_type */
+	.long		.Luint_str		/* DW_AT_name */
+	.byte		4			/* DW_AT_byte_size */
+	.byte		7			/* DW_AT_encoding */
+
+.Lchar_type:
+	.uleb128	4			/* Abbrev: DW_TAG_base_type */
+	.long		.Lchar_str		/* DW_AT_name */
+	.byte		1			/* DW_AT_byte_size */
+	.byte		6			/* DW_AT_encoding */
+
+	.uleb128	5			/* Abbrev: DW_TAG_variable */
+	.long		.Lvarname		/* DW_AT_name */
+	.long		.Lconst_type-.Lcu1_begin/* DW_AT_type */
+	.long		.Lvarcontents		/* DW_AT_const_value */
+	.byte		1			/* DW_AT_external */
+
+.Lconst_type:
+	.uleb128	6			/* Abbrev: DW_TAG_const_type */
+	.long		.Larray_type-.Lcu1_begin/* DW_AT_type */
+	.byte		0			/* End of children of CU */
+.Lcu1_end:
+
+	.section .debug_abbrev
+.Ldebug_abbrev0:
+	.uleb128	1			/* Abbrev code */
+	.uleb128	0x11			/* DW_TAG_compile_unit */
+	.byte		0x1			/* has_children */
+	.uleb128	0x25			/* DW_AT_producer */
+	.uleb128	0xe			/* DW_FORM_strp */
+	.uleb128	0x13			/* DW_AT_language */
+	.uleb128	0xb			/* DW_FORM_data1 */
+	.byte		0x0			/* Terminator */
+	.byte		0x0			/* Terminator */
+
+	.uleb128	2			/* Abbrev code */
+	.uleb128	0x1			/* TAG: DW_TAG_array_type */
+	.byte		0x1			/* DW_children_yes */
+	.uleb128	0x49			/* DW_AT_type */
+	.uleb128	0x13			/* DW_FORM_ref4 */
+	.byte		0x0			/* Terminator */
+	.byte		0x0			/* Terminator */
+
+	.uleb128	3			/* Abbrev code */
+	.uleb128	0x21			/* DW_TAG_subrange_type */
+	.byte		0x0			/* no children */
+	.uleb128	0x49			/* DW_AT_type */
+	.uleb128	0x13			/* DW_FORM_ref4 */
+	.uleb128	0x2f			/* DW_AT_upper_bound */
+	.uleb128	0xb			/* DW_FORM_data1 */
+	.byte		0x0			/* Terminator */
+	.byte		0x0			/* Terminator */
+
+	.uleb128	4			/* Abbrev code */
+	.uleb128	0x24			/* DW_TAG_base_type */
+	.byte		0x0			/* no_children */
+	.uleb128	0x3			/* DW_AT_name */
+	.uleb128	0xe			/* DW_FORM_strp */
+	.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	0x34			/* DW_TAG_variable */
+	.byte		0x0			/* no_children */
+	.uleb128	0x3			/* DW_AT_name */
+	.uleb128	0xe			/* DW_FORM_strp */
+	.uleb128	0x49			/* DW_AT_type */
+	.uleb128	0x13			/* DW_FORM_ref4 */
+	.uleb128	0x1c			/* DW_AT_const_value */
+	.uleb128	0xe			/* DW_FORM_strp */
+	.uleb128	0x3f			/* DW_AT_external */
+	.uleb128	0xc			/* DW_FORM_flag */
+	.byte		0x0			/* Terminator */
+	.byte		0x0			/* Terminator */
+
+	.uleb128	6			/* Abbrev code */
+	.uleb128	0x26			/* DW_TAG_const_type */
+	.byte		0x0			/* DW_children_no */
+	.uleb128	0x49			/* DW_AT_type */
+	.uleb128	0x13			/* DW_FORM_ref4 */
+	.byte		0x0			/* Terminator */
+	.byte		0x0			/* Terminator */
+	.byte		0x0			/* Terminator */
+
+/* String table */
+	.section .debug_str
+.Lproducer:
+	.string		"GNU C 3.3.3"
+.Lchar_str:
+	.string		"char"
+.Luint_str:
+	.string		"unsigned int"
+.Lvarname:
+	.string		"a_string"
+.Lvarcontents:
+	.string		"hello world!\n"
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-strp.exp b/gdb/testsuite/gdb.dwarf2/dw2-strp.exp
new file mode 100644
index 0000000..d5bfe41
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/dw2-strp.exp
@@ -0,0 +1,52 @@
+# Copyright 2008 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/>.
+
+# Test printint string variables that are optimized out because they
+# are unreferenced in code, and whose contents appear in .debug_str.
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+# For now pick a sampling of likely targets.
+if {![istarget *-*-linux*]
+    && ![istarget *-*-gnu*]
+    && ![istarget *-*-elf*]
+    && ![istarget *-*-openbsd*]
+    && ![istarget arm-*-eabi*]
+    && ![istarget powerpc-*-eabi*]} {
+    return 0
+}
+
+set testfile "dw2-strp"
+set srcfile ${testfile}.S
+set binfile ${objdir}/${subdir}/${testfile}.x
+
+if  { [gdb_compile "${srcdir}/${subdir}/main.c" "main.o" object {debug}] != "" } {
+    return -1
+}
+
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${testfile}.o" object {nodebug}] != "" } {
+    return -1
+}
+
+if  { [gdb_compile "${testfile}.o main.o" "${binfile}" executable {debug}] != "" } {
+    return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+gdb_test "p a_string" "\\\$1 = \"hello world!\\\\n\""
+gdb_test "ptype a_string" "type = char \\\[14\\\]"