1# Copyright (C) 1992-2018 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# This file was written by Rob Savoye (rob@cygnus.com)
18# Currently maintained by Doug Evans (dje@cygnus.com)
19
20# This file is loaded by the tool init file (eg: unix.exp).  It provides
21# default definitions for gcc_start, etc. and other supporting cast members.
22
23# These globals are used by gcc_start if no compiler arguments are provided.
24# They are also used by the various testsuites to define the environment:
25# where to find stdio.h, libc.a, etc.
26
27# we want to use libgloss so we can get find_gcc.
28load_lib libgloss.exp
29load_lib prune.exp
30load_lib gcc-defs.exp
31load_lib timeout.exp
32
33#
34# GCC_UNDER_TEST is the compiler under test.
35#
36
37#
38# default_gcc_version -- extract and print the version number of the compiler
39#
40
41proc default_gcc_version { } {
42    global GCC_UNDER_TEST
43
44    gcc_init
45
46    # ignore any arguments after the command
47    set compiler [lindex $GCC_UNDER_TEST 0]
48
49    if ![is_remote host] {
50	set compiler_name [which $compiler]
51    } else {
52	set compiler_name $compiler
53    }
54
55    # verify that the compiler exists
56    if { $compiler_name != 0 } then {
57	set tmp [remote_exec host "$compiler -v"]
58	set status [lindex $tmp 0]
59	set output [lindex $tmp 1]
60	regexp " version \[^\n\r\]*" $output version
61	if { $status == 0 && [info exists version] } then {
62	    clone_output "$compiler_name $version\n"
63	} else {
64	    clone_output "Couldn't determine version of $compiler_name: $output\n"
65	}
66    } else {
67	# compiler does not exist (this should have already been detected)
68	warning "$compiler does not exist"
69    }
70}
71
72#
73# gcc_version -- Call default_gcc_version, so we can override it if needed.
74#
75
76proc gcc_version { } {
77    default_gcc_version
78}
79
80#
81# gcc_init -- called at the start of each .exp script.
82#
83# There currently isn't much to do, but always using it allows us to
84# make some enhancements without having to go back and rewrite the scripts.
85#
86
87set gcc_initialized 0
88
89proc gcc_init { args } {
90    global tmpdir
91    global libdir
92    global gluefile wrap_flags
93    global gcc_initialized
94    global GCC_UNDER_TEST
95    global TOOL_EXECUTABLE
96    global gcc_warning_prefix
97    global gcc_error_prefix
98
99    if { $gcc_initialized == 1 } { return; }
100
101    if ![info exists GCC_UNDER_TEST] {
102	if [info exists TOOL_EXECUTABLE] {
103	    set GCC_UNDER_TEST $TOOL_EXECUTABLE
104	} else {
105	    set GCC_UNDER_TEST "[find_gcc]"
106	}
107    }
108
109    if ![info exists tmpdir] then {
110	set tmpdir /tmp
111    }
112
113    set gcc_warning_prefix "warning:"
114    set gcc_error_prefix "(fatal )?error:"
115
116    gcc_maybe_build_wrapper "${tmpdir}/gcc-testglue.o"
117}
118
119#
120# gcc_target_compile -- compile a source file
121#
122
123proc gcc_target_compile { source dest type options } {
124    global tmpdir
125    global gluefile wrap_flags
126    global GCC_UNDER_TEST
127    global TOOL_OPTIONS
128    global TEST_ALWAYS_FLAGS
129    global flags_to_postpone
130    global board_info
131
132    if {[target_info needs_status_wrapper] != "" && \
133	    [target_info needs_status_wrapper] != "0" && \
134	    [info exists gluefile] } {
135	lappend options "libs=${gluefile}"
136	lappend options "ldflags=$wrap_flags"
137    }
138
139    global TEST_EXTRA_LIBS
140    if [info exists TEST_EXTRA_LIBS] {
141	lappend options "ldflags=$TEST_EXTRA_LIBS"
142    }
143
144    # TEST_ALWAYS_FLAGS are flags that should be passed to every
145    # compilation.  They are passed first to allow individual
146    # tests to override them.
147    if [info exists TEST_ALWAYS_FLAGS] {
148	set options [concat "{additional_flags=$TEST_ALWAYS_FLAGS}" $options]
149    }
150
151    # TOOL_OPTIONS must come first, so that it doesn't override testcase
152    # specific options.
153    if [info exists TOOL_OPTIONS] {
154	set options [concat "{additional_flags=$TOOL_OPTIONS}" $options]
155    }
156
157    # bind_pic_locally adds -fpie/-fPIE flags to flags_to_postpone and it is
158    # appended here to multilib_flags as it can be overridden by the latter
159    # if it was added earlier. After the target_compile, multilib_flags is
160    # restored to its orignal content.
161    set tboard [target_info name]
162    if {[board_info $tboard exists multilib_flags]} {
163        set orig_multilib_flags "[board_info [target_info name] multilib_flags]"
164        append board_info($tboard,multilib_flags) " $flags_to_postpone"
165    }
166
167    lappend options "timeout=[timeout_value]"
168    lappend options "compiler=$GCC_UNDER_TEST"
169    set options [dg-additional-files-options $options $source]
170    set return_val [target_compile $source $dest $type $options]
171
172    if {[board_info $tboard exists multilib_flags]} {
173        set board_info($tboard,multilib_flags) $orig_multilib_flags
174        set flags_to_postpone ""
175    }
176
177    return $return_val
178}
179
180