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Re: [plugins] [patch] Add new testcases and dejagnu support for plugin mechanism
On Tue, Mar 24, 2009 at 1:03 PM, Joseph S. Myers
<joseph@codesourcery.com> wrote:
> On Tue, 24 Mar 2009, Le-Chun Wu wrote:
>>
>> Thanks for the pointer. I've modified plugin-support.exp to use the
>> host compiler. However, I couldn't seem to be able to figure out how
>> $HOSTCC gets set in struct-layout-1.exp, so I manually set it to gcc
>> in plugin-support.exp. If that's not the way to go, please let me
>> know.
>
> HOSTCC is set in site.exp which is created by gcc/Makefile.in or by
> whatever means someone doing installed-compiler testing creates site.exp.
> HOSTCFLAGS is set alongside HOSTCC.
>
Ah, yes, thanks for the explanation. And I also found out why HOSTCC
and HOSTCFLAGS didn't get set in my script in the first place -- I
forgot to declare them as globals. Anyway, enclosed below is the new
plugin-support.exp. (I didn't attach a full patch file again as other
files are not modified.) Thanks,
Le-chun
Index: gcc/testsuite/lib/plugin-support.exp
===================================================================
--- gcc/testsuite/lib/plugin-support.exp (revision 0)
+++ gcc/testsuite/lib/plugin-support.exp (revision 0)
@@ -0,0 +1,126 @@
+# Copyright (C) 2009 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 GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+#
+
+# This file contains the support procedures for testing the plugin mechanism.
+
+load_lib dg.exp
+load_lib gcc.exp
+
+# The including .exp file must define these.
+global plugin_tool tool
+
+if ![info exists plugin_tool] {
+ error "plugin_tool is not specified."
+}
+
+if ![info exists tool] {
+ error "tool is not specified."
+}
+
+#
+# plugin-get-options -- process test directives
+#
+# SRC is the full pathname of the plugin source file.
+#
+proc plugin-get-options { src } {
+ # dg-options sets a variable called dg-extra-tool-flags.
+ set dg-extra-tool-flags ""
+
+ # dg-require-* sets dg-do-what.
+ upvar dg-do-what dg-do-what
+
+ set tmp [dg-get-options $src]
+ foreach op $tmp {
+ set cmd [lindex $op 0]
+ if { ![string compare "dg-options" $cmd] } {
+ set status [catch "$op" errmsg]
+ if { $status != 0 } {
+ perror "src: $errmsg for \"$op\"\n"
+ unresolved "$src: $errmsg for \"$op\""
+ return
+ }
+ } else {
+ # Ignore unrecognized dg- commands, but warn about them.
+ warning "plugin.exp does not support $cmd"
+ }
+ }
+
+ # Return flags to use for compiling the plugin source file
+ return ${dg-extra-tool-flags}
+}
+
+#
+# plugin-test-execute -- build the plugin first and then compile the
+# test files with the plugin.
+#
+# PLUGIN_SRC is the full pathname of the plugin source file.
+# PLUGIN_TESTS is a list of input test source files.
+#
+proc plugin-test-execute { plugin_src plugin_tests } {
+ global srcdir objdir
+ global plugin_tool tool
+ global verbose
+ global HOSTCC HOSTCFLAGS
+
+ set basename [file tail $plugin_src]
+ set base [file rootname $basename]
+ set plugin_lib $base.so
+
+ verbose "Test the plugin $basename" 1
+
+ #
+ # Build the plugin itself
+ #
+
+ set extra_flags [plugin-get-options $plugin_src]
+
+ # Note that the plugin test support currently only works when the GCC
+ # build tree is available. (We make sure that is the case in plugin.exp.)
+ # Once we have figured out how/where to package/install GCC header files
+ # for general plugin support, we should modify the following include paths
+ # accordingly.
+ set gcc_srcdir "$srcdir/../.."
+ set gcc_objdir "$objdir/../../.."
+ set includes "-I. -I${srcdir} -I${gcc_srcdir}/gcc -I${gcc_objdir}/gcc \
+ -I${gcc_srcdir}/include -I${gcc_srcdir}/libcpp/include \
+ -I${gcc_objdir}/gmp"
+
+ set optstr "$includes $extra_flags -DIN_GCC -shared"
+ set compline "$optstr $plugin_src -o $plugin_lib"
+
+ set status [remote_exec build "$HOSTCC $HOSTCFLAGS $compline"]
+ set status [lindex $status 0]
+
+ if { $status != 0 } {
+ unresolved "$basename compilation, $optstr"
+ return
+ }
+
+ #
+ # Compile the input source files with the plugin
+ #
+
+ global default_flags
+ set plugin_enabling_flags "-fplugin=./$plugin_lib"
+ dg-runtest $plugin_tests $plugin_enabling_flags $default_flags
+
+ #
+ # Clean up
+ #
+
+ remote_file build delete $plugin_lib
+}