GDB 7.6.50

gdb/testsuite/gdb.dwarf2/implptrpiece.exp

Index: gdb/testsuite/gdb.dwarf2/implptrpiece.exp
diff --git a/gdb/testsuite/gdb.dwarf2/implptrpiece.exp b/gdb/testsuite/gdb.dwarf2/implptrpiece.exp
new file mode 100644
index 0000000000000000000000000000000000000000..3f14a66b6e6d8d6f2437b4607edfb3661ea39573
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/implptrpiece.exp
@@ -0,0 +1,131 @@
+# Copyright 2013 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/>.
+
+load_lib dwarf.exp
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+if {![dwarf2_support]} {
+    return 0  
+}
+
+if { [skip_cplus_tests] } { continue }
+
+standard_testfile main.c implptrpiece-dw.S
+
+# Make some DWARF for the test.
+set asm_file [standard_output_file $srcfile2]
+
+Dwarf::assemble $asm_file {
+    # Using a funny address size here and in the pointer type lets us
+    # also check for a sign-extension bug in the
+    # DW_OP_GNU_implicit_pointer code.
+    cu { addr_size 2 } {
+ 	compile_unit {} {
+	    declare_labels struct_label short_type_label
+	    declare_labels char_type_label ptr_label
+	    declare_labels var_label
+
+	    struct_label: structure_type {
+		{name S}
+		{byte_size 4 DW_FORM_sdata}
+	    } {
+		member {
+		    {name a}
+		    {type :$short_type_label}
+		    {data_member_location 0 DW_FORM_sdata}
+		}
+		member {
+		    {name b}
+		    {type :$char_type_label}
+		    {data_member_location 2 DW_FORM_sdata}
+		}
+		member {
+		    {name c}
+		    {type :$char_type_label}
+		    {data_member_location 3 DW_FORM_sdata}
+		}
+	    }
+
+	    short_type_label: base_type {
+		{name "short int"}
+		{encoding @DW_ATE_signed}
+		{byte_size 2 DW_FORM_sdata}
+	    }
+
+	    char_type_label: base_type {
+		{name "signed char"}
+		{encoding @DW_ATE_signed}
+		{byte_size 1 DW_FORM_sdata}
+	    }
+
+	    # See comment above to understand the pointer size.
+	    ptr_label: pointer_type {
+		{byte_size 2 DW_FORM_sdata}
+		{type :$char_type_label}
+	    }
+
+	    var_label: DW_TAG_variable {
+		{name s}
+		{type :$struct_label}
+		{location {
+		    const1u 1
+		    stack_value
+		    piece 2
+		    const1u 2
+		    stack_value
+		    piece 1
+		    const1u 3
+		    stack_value
+		    piece 1
+		} SPECIAL_expr}
+	    }
+
+	    DW_TAG_variable {
+		{name p}
+		{type :$ptr_label}
+		{location {
+		    GNU_implicit_pointer $var_label 2
+		} SPECIAL_expr}
+	    }
+	}
+    }
+}
+
+if  {[gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile}1.o \
+	  object {nodebug}] != ""} {
+    return -1
+}
+
+if  {[gdb_compile $asm_file ${binfile}2.o object {nodebug}] != ""} {
+    return -1
+}
+
+if  {[gdb_compile [list ${binfile}1.o ${binfile}2.o] \
+	  "${binfile}" executable {}] != ""} {
+    return -1
+}
+
+# We need --readnow because otherwise we never read in the CU we
+# created above.
+set saved_gdbflags $GDBFLAGS
+set GDBFLAGS "$GDBFLAGS -readnow"
+clean_restart ${testfile}
+set GDBFLAGS $saved_gdbflags
+
+if ![runto_main] {
+    return -1
+}
+
+gdb_test "print/d p\[-1\]" " = 0"