1# Copyright (C) 2009-2016 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 to make sure that they match the newline-separated patterns
30# in COMPILER_PATTERNS but not the patterns in COMPILER_NON_PATTERNS.
31# In case of failure, xfail if XFAIL is nonempty.
32
33proc check_for_options {language gcc_options compiler_patterns compiler_non_patterns expected_failure} {
34    set filename test-[pid]
35    set fd [open $filename.c w]
36    puts $fd "int main (void) { return 0; }"
37    close $fd
38    remote_download host $filename.c
39
40    set test "compiler driver $gcc_options option(s):"
41    set gcc_options "\{additional_flags=$gcc_options\}"
42
43    switch "$language" {
44	"c" { set compiler cc1 }
45	default { error "unknown language" }
46    }
47    set gcc_output [gcc_target_compile $filename.c $filename.x executable $gcc_options]
48    remote_file build delete $filename.c $filename.x $filename.gcno
49
50    # Verify that COMPILER_PATTERRNS appear in gcc output.
51    foreach pattern [split $compiler_patterns "\n"] {
52	if {$pattern != ""} {
53	    if {[regexp -line -- "$pattern" $gcc_output]} {
54		pass "$test $pattern"
55	    } else {
56		if {$expected_failure != ""} {
57		    xfail "$test \"$pattern\" present in output"
58		} else {
59		    fail "$test \"$pattern\" present in output"
60		}
61	    }
62	}
63    }
64
65    # Verify that COMPILER_NON_PATTERRNS do not appear in gcc output.
66    foreach pattern [split $compiler_non_patterns "\n"] {
67	if {$pattern != ""} {
68	    if {![regexp -line -- "$pattern" $gcc_output result]} {
69		pass "$test $pattern"
70	    } else {
71		if {$expected_failure != ""} {
72		    xfail "$test \"$pattern\" absent from output"
73		} else {
74		    # Print the unexpected line that caused the failure
75		    # to make it easier to find in the multiline output.
76		    fail "$test \"$pattern\" absent from output: \"$result\""
77		}
78	    }
79	}
80    }
81}
82