Merge GDB 7.5.1

gdb/testsuite/gdb.arch/i386-sse-stack-align.exp

-# Copyright 2011-2012 Free Software Foundation, Inc.
+# Copyright 2012 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 ![is_x86_like_target] {
+    verbose "Skipping x86 SSE stack alignment tests."
+    return
 }
 
-set testfile "dw2-simple-locdesc"
+set testfile "i386-sse-stack-align"
 set srcfile ${testfile}.S
-set executable ${testfile}.x
+set csrcfile ${testfile}.c
+set executable ${testfile}
 set binfile ${objdir}/${subdir}/${executable}
+set opts {}
 
-if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" object {}] != "" } {
+if [info exists COMPILE] {
+    set srcfile ${csrcfile}
+    lappend opts debug optimize=-O2 additional_flags=-msse
+}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $opts] != "" } {
+    unsupported "cannot compile ${srcfile}"
     return -1
 }
 
 clean_restart $executable
 
-# Re: [patch 2/2] Fix decode_locdesc for gcc-4.7.x optimized DWARF
-# http://sourceware.org/ml/gdb-patches/2011-07/msg00766.html
-set test "p &s.shl"
-gdb_test_multiple $test $test {
-    -re " = \\(int \\*\\) 0x1000000\r\n$gdb_prompt $" {
-        pass $test
-    }
-    -re " = \\(int \\*\\) 0x14\r\n$gdb_prompt $" {
-        kfail "symtab/13307" $test
-    }
+if ![runto_main] then {
+    return -1
 }
 
-# Re: RFC: fix DW_AT_data_member_location buglet
-# http://sourceware.org/ml/gdb-patches/2011-05/msg00291.html
-gdb_test "p &s.data4" { = \(int \*\) 0x10000}
+set args ""
+foreach i {0 1 2 3 4} {
+    set test "print g$i ($args)"
+    gdb_test_multiple $test $test {
+        -re " = 2\r\n$gdb_prompt $" {
+            pass $test
+        }
+        -re "Program received signal SIGSEGV, Segmentation fault\\..*\r\n$gdb_prompt $" {
+            fail $test
+        }
+    }
+
+    if {$args != ""} {
+        set args "$args, "
+    }
+    set args "$args[expr $i + 1]"
+}