1#   Copyright (C) 2009-2019 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with GCC; see the file COPYING3.  If not see
15# <http://www.gnu.org/licenses/>.
16#
17
18# This file contains the support procedures for testing the plugin mechanism.
19
20load_lib dg.exp
21load_lib gcc.exp
22
23#
24# plugin-get-options -- process test directives
25#
26# SRC is the full pathname of the plugin source file.
27#
28proc plugin-get-options { src } {
29    # dg-options sets a variable called dg-extra-tool-flags.
30    set dg-extra-tool-flags ""
31
32    # dg-require-* sets dg-do-what.
33    upvar dg-do-what dg-do-what
34
35    set tmp [dg-get-options $src]
36    foreach op $tmp {
37	set cmd [lindex $op 0]
38	if { ![string compare "dg-options" $cmd] } {
39	    set status [catch "$op" errmsg]
40	    if { $status != 0 } {
41		perror "src: $errmsg for \"$op\"\n"
42		unresolved "$src: $errmsg for \"$op\""
43		return
44	    }
45	} else {
46	    # Ignore unrecognized dg- commands, but warn about them.
47	    warning "plugin.exp does not support $cmd"
48	}
49   }
50
51    # Return flags to use for compiling the plugin source file
52    return ${dg-extra-tool-flags}
53}
54
55#
56# plugin-test-execute -- build the plugin first and then compile the
57# test files with the plugin.
58#
59# PLUGIN_SRC is the full pathname of the plugin source file.
60# PLUGIN_TESTS is a list of input test source files.
61#
62proc plugin-test-execute { plugin_src plugin_tests } {
63    global srcdir objdir
64    global verbose
65    global GMPINC
66    global PLUGINCC
67    global PLUGINCFLAGS
68
69    set basename [file tail $plugin_src]
70    set base [file rootname $basename]
71    set plugin_lib $base.so
72
73    set testcase [dg-trim-dirname $srcdir $plugin_src]
74    verbose "Test the plugin $testcase" 1
75
76    # Build the plugin itself
77    set extra_flags [plugin-get-options $plugin_src]
78
79    # Note that the plugin test support currently only works when the GCC
80    # build tree is available. (We make sure that is the case in plugin.exp.)
81    # Once we have figured out how/where to package/install GCC header files
82    # for general plugin support, we should modify the following include paths
83    # accordingly.
84    set gcc_srcdir "$srcdir/../.."
85    set gcc_objdir "$objdir/../../.."
86    set includes "-I. -I${srcdir} -I${gcc_srcdir}/gcc -I${gcc_objdir}/gcc \
87                  -I${gcc_srcdir}/include -I${gcc_srcdir}/libcpp/include \
88                  $GMPINC -I${gcc_objdir}/intl"
89
90    if { [ ishost *-*-darwin* ] } {
91	# -mdynamic-no-pic is incompatible with -fPIC.
92	set plug_cflags ""
93	foreach op $PLUGINCFLAGS {
94	    if { [string compare "-mdynamic-no-pic" $op] } {
95		set plug_cflags [concat $plug_cflags " $op"]
96	    }
97	}
98	set optstr "$includes"
99	foreach op $extra_flags {
100	    if { [string compare "-mdynamic-no-pic" $op] } {
101		set optstr [concat $optstr " $op"]
102	    }
103	}
104	set optstr [concat $optstr "-DIN_GCC -fPIC -shared -fno-rtti -undefined dynamic_lookup"]
105    } else {
106	set plug_cflags $PLUGINCFLAGS
107	set optstr "$includes $extra_flags -DIN_GCC -fPIC -shared -fno-rtti"
108    }
109
110    # Temporarily switch to the environment for the plugin compiler.
111    restore_ld_library_path_env_vars
112    set status [remote_exec build "$PLUGINCC $plug_cflags $plugin_src $optstr -o $plugin_lib"]
113    set status [lindex $status 0]
114    set_ld_library_path_env_vars
115
116    if { $status != 0 } then {
117 	fail "$testcase compilation"
118	# Strictly, this is wrong: the tests compiled with the plugin should
119	# become unresolved instead.
120 	return
121    } else {
122	pass "$testcase compilation"
123    }
124
125    # Compile the input source files with the plugin
126    global default_flags
127    set plugin_enabling_flags "-fplugin=./$plugin_lib"
128    dg-runtest $plugin_tests $plugin_enabling_flags $default_flags
129
130    # Clean up
131    remote_file build delete $plugin_lib
132}
133