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+# Copyright 2007 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 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.
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@gnu.org
+
+# This file is part of the gdb testsuite.
+
+# Unwinding of DW_CFA_GNU_negative_offset_extended test program.
+
+if $tracelevel {
+ strace $tracelevel
+}
+
+# Test i386 unwinder.
+
+set prms_id 0
+set bug_id 0
+
+if ![istarget "i?86-*-*"] then {
+ verbose "Skipping i386 unwinder tests."
+ return
+}
+
+set testfile "i386-gnu-cfi"
+set srcfilec ${testfile}.c
+set srcfileasm ${testfile}-asm.S
+set binfile ${objdir}/${subdir}/${testfile}
+
+# some targets have leading underscores on assembly symbols.
+# TODO: detect this automatically
+set additional_flags ""
+if [istarget "i?86-*-cygwin*"] then {
+ set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""
+}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfilec} ${srcdir}/${subdir}/${srcfileasm}" "${binfile}" executable [list debug $additional_flags]] != "" } {
+ untested i386-gnu-cfi.exp
+ return -1
+}
+
+# Get things started.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+# We should stop in abort(3).
+
+gdb_run_cmd
+
+gdb_test_multiple {} "continue to abort()" {
+ -re ".*Program received signal SIGABRT,.*$gdb_prompt $" {
+ pass "continue to abort()"
+ }
+}
+
+# Backtrace would crash before.
+
+gdb_test "bt" \
+ "main \\(\\) at .*${testfile}.c.*" \
+ "backtrace"
+
+# Check we see the inserted `DW_CFA_GNU_negative_offset_extended' CFI.
+# We see there the original CFI-stored filename `gate.c'.
+
+gdb_test "up 3" \
+ "gate \\(\[^()\]*\\) at .*gate.c.*" \
+ "shift up to the modified frame"
+
+gdb_test_multiple "info frame" "Existence of the CFI inserted register" {
+ -re "Stack level 3, frame at (0x\[0-9a-f\]+):.*Saved registers:.* ecx at (0x\[0-9a-f\]+),.*" {
+ pass "Existence of the CFI inserted register"
+ if { [string compare $expect_out(1,string) $expect_out(2,string)] } then {
+ fail "Value of the CFI inserted register"
+ } else {
+ pass "Value of the CFI inserted register"
+ }
+ }
+}