1# Copyright (C) 2013-2014 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# atomic_link_flags -- compute library path and flags to find libatomic.
19# (originally from g++.exp)
20#
21
22proc atomic_link_flags { paths } {
23    global srcdir
24    global ld_library_path
25    global shlib_ext
26
27    set gccpath ${paths}
28    set flags ""
29
30    set shlib_ext [get_shlib_extension]
31
32    if { $gccpath != "" } {
33      if { [file exists "${gccpath}/libatomic/.libs/libatomic.a"]
34	   || [file exists "${gccpath}/libatomic/.libs/libatomic.${shlib_ext}"] } {
35	  append flags " -B${gccpath}/libatomic/ "
36	  append flags " -L${gccpath}/libatomic/.libs"
37	  append ld_library_path ":${gccpath}/libatomic/.libs"
38      }
39    } else {
40      global tool_root_dir
41
42      set libatomic [lookfor_file ${tool_root_dir} libatomic]
43      if { $libatomic != "" } {
44	  append flags "-L${libatomic} "
45	  append ld_library_path ":${libatomic}"
46      }
47    }
48
49    set_ld_library_path_env_vars
50
51    append flags " -latomic "
52    return "$flags"
53}
54
55#
56# atomic_init -- called at the start of each subdir of tests
57#
58
59proc atomic_init { args } {
60    global TEST_ALWAYS_FLAGS
61    global ALWAYS_CXXFLAGS
62    global TOOL_OPTIONS
63    global atomic_saved_TEST_ALWAYS_FLAGS
64
65    set link_flags ""
66    if ![is_remote host] {
67	if [info exists TOOL_OPTIONS] {
68	    set link_flags "[atomic_link_flags [get_multilibs ${TOOL_OPTIONS}]]"
69	} else {
70	    set link_flags "[atomic_link_flags [get_multilibs]]"
71	}
72    }
73
74    if [info exists TEST_ALWAYS_FLAGS] {
75	set atomic_saved_TEST_ALWAYS_FLAGS $TEST_ALWAYS_FLAGS
76    }
77    if [info exists ALWAYS_CXXFLAGS] {
78	set ALWAYS_CXXFLAGS [concat "{ldflags=$link_flags}" $ALWAYS_CXXFLAGS]
79    } else {
80	if [info exists TEST_ALWAYS_FLAGS] {
81	    set TEST_ALWAYS_FLAGS "$link_flags $TEST_ALWAYS_FLAGS"
82	} else {
83	    set TEST_ALWAYS_FLAGS "$link_flags"
84	}
85    }
86    return [check_no_compiler_messages_nocache libatomic_available executable {
87	int main (void) { return 0; }
88    }]
89}
90
91#
92# atomic_finish -- called at the end of each subdir of tests
93#
94
95proc atomic_finish { args } {
96    global TEST_ALWAYS_FLAGS
97    global atomic_saved_TEST_ALWAYS_FLAGS
98
99    if [info exists atomic_saved_TEST_ALWAYS_FLAGS] {
100	set TEST_ALWAYS_FLAGS $atomic_saved_TEST_ALWAYS_FLAGS
101    } else {
102	unset TEST_ALWAYS_FLAGS
103    }
104}
105