1 # Expect script for ld-gc tests
2 # Copyright (C) 2008-2020 Free Software Foundation, Inc.
4 # This file is part of the GNU Binutils.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 # These tests require --gc-sections
22 if ![check_gc_sections_available] {
26 global NOSANTIZE_CFLAGS
28 set cflags "-ffunction-sections -fdata-sections $NOSANTIZE_CFLAGS"
29 set objfile "tmpdir/gc.o"
31 # Add $NOPIE_CFLAGS and $NOPIE_LDFLAGS if non-PIE is required.
32 global NOPIE_CFLAGS NOPIE_LDFLAGS
34 if [istarget powerpc64*-*-*] {
35 # otherwise with -mcmodel=medium gcc we get XPASSes.
36 set cflags "$cflags -mminimal-toc"
39 if { [istarget m681*-*-*] || [istarget m68hc1*-*-*] } {
40 # Otherwise tests FAIL due to _.frame
41 set cflags "$cflags -fomit-frame-pointer -mshort"
44 if { [check_compiler_available] } {
45 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/gc.c $objfile
48 proc test_gc { testname filename linker ldflags} {
55 if ![file readable $objfile ] {
60 set outfile "tmpdir/$filename"
61 set options "-L$srcdir/$subdir"
62 append options " " $ldflags " " [ld_link_defsyms] " " $objfile
64 if ![ld_link $linker $outfile $options] {
68 if ![ld_nm $nm "" $outfile] {
72 if {![info exists nm_output(used_func)] \
73 || ![info exists nm_output(used_var)]} {
74 send_log "used sections do not exist\n"
75 verbose "used sections do not exist"
79 #ppc64_elf_gc_mark_hook needs to be taught how to look through
80 #the .toc section to properly mark variable sections for gc.
81 setup_xfail "powerpc64*-*-*"
82 if {[info exists nm_output(unused_func)] \
83 || [info exists nm_output(unused_var)]} {
84 send_log "unused section still here\n"
85 verbose "unused section still here"
92 test_gc "Check --gc-section" "gcexe" $ld "--gc-sections -e main"
93 test_gc "Check --gc-section/-q" "gcrexe" $ld "--gc-sections -q -e main"
94 test_gc "Check --gc-section/-r/-e" "gcrel" $ld "-r --gc-sections -e main"
95 test_gc "Check --gc-section/-r/-u" "gcrel" $ld "-r --gc-sections -u used_func"
98 run_dump_test "abi-note"
101 run_dump_test "pr19167"
102 if { [is_elf_format] } then {
103 run_dump_test "all-debug-sections"
104 run_dump_test "pr20882"
107 if { [is_elf_format] && [check_shared_lib_support] } then {
109 if { [istarget tic6x-*] } then {
110 set gasopt "-mpic -mpid=near"
112 # These targets do not default to linking with shared libraries.
113 set old_ldflags $LDFLAGS
114 if { [istarget "mips*vr4100*-*-elf*"] \
115 || [istarget "mips*vr4300*-*-elf*"] \
116 || [istarget "mips*vr5000*-*-elf*"] } {
117 append LDFLAGS " -call_shared"
119 if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/libpersonality.s tmpdir/libpersonality.o]
120 || ![ld_link $ld tmpdir/libpersonality.so "-shared tmpdir/libpersonality.o"] } then {
123 run_dump_test "personality"
125 run_dump_test "pr18223"
126 if {![ld_assemble_flags $as $gasopt $srcdir/$subdir/pr20022a.s tmpdir/pr20022a.o]
127 || ![ld_link $ld tmpdir/pr20022.so "-shared --gc-sections tmpdir/pr20022a.o"] } then {
130 run_dump_test "pr20022"
132 set LDFLAGS $old_ldflags
135 if { [check_compiler_available] } {
136 if { [istarget "*-*-linux*"]
137 || [istarget "*-*-nacl*"]
138 || [istarget "*-*-gnu*"] } {
139 ld_compile "$CC -fPIC $CFLAGS $cflags" $srcdir/$subdir/pr11218-1.c tmpdir/pr11218-1.o
140 ld_link $ld tmpdir/pr11218-1.so "-shared tmpdir/pr11218-1.o"
141 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/pr11218-2.c tmpdir/pr11218-2.o
142 run_dump_test "pr11218"
146 if { [check_compiler_available] } {
147 ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr13683.c tmpdir/pr13683.o
148 run_dump_test "pr13683"
151 if { [check_compiler_available] } {
152 ld_compile "$CC $CFLAGS $cflags $NOPIE_CFLAGS" $srcdir/$subdir/pr14265.c tmpdir/pr14265.o
153 run_dump_test "pr14265"
156 if { [check_compiler_available] } {
157 ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-1.c tmpdir/pr19161-1.o
158 ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-2.c tmpdir/pr19161-2.o
159 set saved_LDFLAGS "$LDFLAGS"
160 if [istarget hppa*-*-linux*] {
161 set LDFLAGS "$LDFLAGS --defsym '\$\$dyncall=0'"
163 run_dump_test "pr19161"
164 set LDFLAGS "$saved_LDFLAGS"
167 if { [is_elf_format] && [check_shared_lib_support] \
168 && [check_compiler_available] } {
169 run_cc_link_tests [list \
171 "Build libpr20306.so" \
179 run_dump_test "pr20306"
182 if { [is_elf_format] } then {
183 run_dump_test "skip-map-discarded"