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[9/10] add cc-with-dwz.sh


This adds cc-with-dwz.sh, mostly cut-and-pasted from cc-with-index.sh.

This is handy for running the test suite with DWARF compression enabled.

Tom

>From 9628c41d7264e98ca1b5b0471ff62e68cb6cd47b Mon Sep 17 00:00:00 2001
From: Tom Tromey <tromey@redhat.com>
Date: Tue, 24 Apr 2012 11:44:26 -0600
Subject: [PATCH 09/10] add cc-with-dwz.sh

	* cc-with-dwz.sh: New file.
---
 gdb/cc-with-dwz.sh |   80 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 80 insertions(+), 0 deletions(-)
 create mode 100755 gdb/cc-with-dwz.sh

diff --git a/gdb/cc-with-dwz.sh b/gdb/cc-with-dwz.sh
new file mode 100755
index 0000000..f66deb1
--- /dev/null
+++ b/gdb/cc-with-dwz.sh
@@ -0,0 +1,80 @@
+#! /bin/sh
+# Wrapper around gcc to run 'dwz' when running the testsuite.
+
+# Copyright (C) 2010-2012 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/>.
+
+# This program requires dwz in addition to gcc.
+#
+# Example usage:
+#
+# bash$ cd $objdir/gdb/testsuite
+# bash$ runtest \
+#   CC_FOR_TARGET="/bin/sh $srcdir/cc-with-dwz.sh gcc" \
+#   CXX_FOR_TARGET="/bin/sh $srcdir/cc-with-dwz.sh g++"
+#
+
+myname=cc-with-dwz.sh
+
+DWZ=${DWZ:-dwz}
+
+have_link=unknown
+next_is_output_file=no
+output_file=a.out
+
+for arg in "$@"
+do
+    if [ "$next_is_output_file" = "yes" ]
+    then
+	output_file="$arg"
+	next_is_output_file=no
+	continue
+    fi
+
+    # Poor man's gcc argument parser.
+    # We don't need to handle all arguments, we just need to know if we're
+    # doing a link and what the output file is.
+    # It's not perfect, but it seems to work well enough for the task at hand.
+    case "$arg" in
+    "-c") have_link=no ;;
+    "-E") have_link=no ;;
+    "-S") have_link=no ;;
+    "-o") next_is_output_file=yes ;;
+    esac
+done
+
+if [ "$next_is_output_file" = "yes" ]
+then
+    echo "$myname: Unable to find output file" >&2
+    exit 1
+fi
+
+if [ "$have_link" = "no" ]
+then
+    "$@"
+    exit $?
+fi
+
+"$@"
+rc=$?
+[ $rc != 0 ] && exit $rc
+if [ ! -f "$output_file" ]
+then
+    echo "$myname: Internal error: $output_file missing." >&2
+    exit 1
+fi
+
+$DWZ "$output_file" > /dev/null 2>&1
+
+exit 0
-- 
1.7.7.6


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