* gdb.arch/powerpc-aix-prologue.c: New file.

* gdb.arch/powerpc-aix-prologue.exp: New file.

gdb/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2004-05-07  Joel Brobecker  <brobecker@gnat.com>
+
+	* gdb.arch/powerpc-aix-prologue.c: New file.
+	* gdb.arch/powerpc-aix-prologue.exp: New file.
+
 2004-05-07  Jim Blandy  <jimb@redhat.com>
 
 	* gdb.base/lineinc.exp, gdb.base/lineinc1.h, gdb.base/lineinc2.h,

gdb/testsuite/gdb.arch/powerpc-aix-prologue.c

@@ -0,0 +1,55 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2004 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.  */
+
+void li_stw (void);
+
+int
+main (void)
+{
+  li_stw ();
+  return 0;
+}
+
+/* Asm for procedure li_stw().
+
+   The purpose of this function is to verify that GDB does not
+   include the li insn as part of the function prologue (only part
+   of the prologue if part of a pair of insns saving vector registers).
+   Similarly, GDB should not include the stw insn following the li insn,
+   because the source register is not used for parameter passing.  */
+
+
+asm ("        .csect .text[PR]\n"
+     "        .align 2\n"
+     "        .lglobl .li_stw\n"
+     "        .csect li_stw[DS]\n"
+     "li_stw:\n"
+     "        .long .li_stw, TOC[tc0], 0\n"
+     "        .csect .text[PR]\n"
+     ".li_stw:\n"
+     "        stw 31,-4(1)\n"
+     "        stwu 1,-48(1)\n"
+     "        mr 31,1\n"
+     "        stw 11,24(31)\n"
+     "        li 0,8765\n"
+     "        stw 0,28(31)\n"
+     "        lwz 1,0(1)\n"
+     "        lwz 31,-4(1)\n"
+     "        blr\n");
+

gdb/testsuite/gdb.arch/powerpc-aix-prologue.exp

@@ -0,0 +1,82 @@
+# Copyright 2004 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.  
+#
+# This file is part of the gdb testsuite.
+
+if $tracelevel {
+    strace $tracelevel
+}
+
+# Test rs6000 prologue analyzer.
+
+set prms_id 0
+set bug_id 0
+
+if ![istarget "powerpc-*-aix*"] then {
+    verbose "Skipping powerpc-aix prologue tests."
+    return
+}
+
+set testfile "powerpc-aix-prologue"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {}] != "" } {
+    unsupported "Testcase compile failed."
+    return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+# Insert a breakpoint in FUNCTION and verifies that the breakpoint was
+# inserted at the expected location.  EXPECTED_LOCATION should be an
+# offset relative to the function start address.
+proc insert_breakpoint {function expected_location} {
+    global gdb_prompt
+    global expect_out
+    global hex
+    
+    set address ""
+
+    # Insert a breakpoint using the given function name, and extract
+    # the breakpoint address for the output.
+    gdb_test_multiple "break $function" "set breakpoint in $function" {
+        -re "Breakpoint 1 at ($hex).*$gdb_prompt $" {
+            set address $expect_out(1,string)
+        }
+        default {
+            fail "set breakpoint in $function"
+        }
+    }
+
+    # If we managed to get the breakpoing address, then check that
+    # we inserted it at the expected location by examining the
+    # instruction at that address (we're not interested in the insn
+    # itself, but rather at the address printed at the begining of
+    # the instruction).
+    if { $address != "" } then {
+       gdb_test "x /i $address" \
+                ".*<$function\\+$expected_location>.*" \
+                "check $function breakpoint address"
+    } else {
+       fail "unable to compute breakpoint address"
+    }
+
+}
+
+insert_breakpoint "li_stw" 12