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# We set LC_ALL and LANG to C so that we get the same error messages as expected.
18setenv LC_ALL C
19setenv LANG C
20
21# Many hosts now default to a non-ASCII C locale, however, so
22# they can set a charset encoding here if they need.
23if { [ishost "*-*-cygwin*"] } {
24  setenv LC_ALL C.ASCII
25  setenv LANG C.ASCII
26}
27
28# Run the LANGUAGE compiler with GCC_OPTIONS and inspect the compiler
29# output excluding EXCLUDE lines to make sure that they match the
30# newline-separated patterns in COMPILER_PATTERNS but not the patterns in
31# COMPILER_NON_PATTERNS.  In case of failure, xfail if XFAIL is nonempty.
32
33proc check_for_options_with_filter { language gcc_options exclude \
34					 compiler_patterns \
35					 compiler_non_patterns \
36					 expected_failure } {
37    set filename test-[pid]
38    set fd [open $filename.c w]
39    puts $fd "int main (void) { return 0; }"
40    close $fd
41    remote_download host $filename.c
42
43    set test "compiler driver $gcc_options option(s):"
44    set gcc_options "\{additional_flags=$gcc_options\}"
45
46    switch "$language" {
47	"c" { set compiler cc1 }
48	default { error "unknown language" }
49    }
50    set gcc_output [gcc_target_compile $filename.c $filename.x executable $gcc_options]
51    remote_file build delete $filename.c $filename.x $filename.gcno
52
53    if { $exclude != "" } {
54	set lines [split $gcc_output "\n"]
55	set gcc_output ""
56	foreach line $lines {
57	    if {[regexp -line -- "$exclude" $line]} {
58		continue
59	    }
60	    if { $gcc_output == "" } {
61		set gcc_output "$line"
62	    } else {
63		set gcc_output "$gcc_output\n$line"
64	    }
65	}
66   }
67
68    # Verify that COMPILER_PATTERRNS appear in gcc output.
69    foreach pattern [split $compiler_patterns "\n"] {
70	if {$pattern != ""} {
71	    if {[regexp -line -- "$pattern" $gcc_output]} {
72		pass "$test $pattern"
73	    } else {
74		if {$expected_failure != ""} {
75		    xfail "$test \"$pattern\" present in output"
76		} else {
77		    fail "$test \"$pattern\" present in output"
78		}
79	    }
80	}
81    }
82
83    # Verify that COMPILER_NON_PATTERRNS do not appear in gcc output.
84    foreach pattern [split $compiler_non_patterns "\n"] {
85	if {$pattern != ""} {
86	    if {![regexp -line -- "$pattern" $gcc_output result]} {
87		pass "$test $pattern"
88	    } else {
89		if {$expected_failure != ""} {
90		    xfail "$test \"$pattern\" absent from output"
91		} else {
92		    # Print the unexpected line that caused the failure
93		    # to make it easier to find in the multiline output.
94		    fail "$test \"$pattern\" absent from output: \"$result\""
95		}
96	    }
97	}
98    }
99}
100
101# As check_for_options_with_filter, but without the EXCLUDE parameter.
102
103proc check_for_options { language gcc_options compiler_patterns \
104			     compiler_non_patterns expected_failure } {
105    check_for_options_with_filter $language $gcc_options "" $compiler_patterns \
106	$compiler_non_patterns $expected_failure
107}
108