Developer Improvement: Get code coverage tool working with Hostboot

This commit fixes GCOV code coverage for P9 with GCC 4.9.2

Change-Id: Ie1e7c35f67414531dbd6e7a771ac1529a9ebd59d
RTC: 208351
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/76812
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Nicholas E. Bofferding <bofferdn@us.ibm.com>
Reviewed-by: Ilya Smirnov <ismirno@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/src/build/tools/cflags.sh b/src/build/tools/cflags.sh
new file mode 100755
index 000000000..09483f3eb
--- /dev/null
+++ b/src/build/tools/cflags.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: src/build/tools/cflags.sh $
+#
+# OpenPOWER HostBoot Project
+#
+# Contributors Listed Below - COPYRIGHT 2019
+# [+] International Business Machines Corp.
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+#
+# IBM_PROLOG_END_TAG
+
+# The purpose of this script is to convert a series of GCC compiler
+# flags into an equivalent series of flags, but which use absolute
+# paths for include directories (i.e. the "-I" flag) instead of
+# relative paths. We have to do this when GCOV is in use, because it
+# stupidly puts data files in one path but stores paths inside the
+# data files that are relative to some other path. When GCOV then
+# tries to read the source files via these relative paths, it can't
+# find the files. We correct this by converting all paths to source
+# and header files to absolute paths.
+
+if [ ! "$HOSTBOOT_PROFILE" ] ; then
+    echo "$@"
+    exit
+fi
+
+make_path_abs () {
+    local ABSPATH=$(readlink -f "$1")
+
+    if [ $? -ne 0 ] ; then
+        ABSPATH="$1"
+    fi
+
+    echo -n "$ABSPATH"
+}
+
+while [ "$#" -gt 0 ] ; do
+    FLAG="$1"
+
+    if [ "$FLAG" = "-I" ] ; then
+        shift
+        echo -n "-I $(make_path_abs "$1") "
+    elif [ "${FLAG:0:2}" = "-I" ] ; then
+        echo -n "-I $(make_path_abs "${FLAG:2}") "
+    else
+        echo -n "$FLAG "
+    fi
+
+    shift
+done
+
+echo