Provide __executable_start for PIE
[deliverable/binutils-gdb.git] / ld / testsuite / ld-elf / elf.exp
1 # Expect script for various ELF tests.
2 # Copyright 2002, 2003, 2005, 2007, 2009, 2010, 2011, 2012
3 # Free Software Foundation, Inc.
4 #
5 # This file is part of the GNU Binutils.
6 #
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
11 #
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
16 #
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 # MA 02110-1301, USA.
21 #
22
23 # Exclude non-ELF targets.
24
25 if ![is_elf_format] {
26 return
27 }
28
29 set old_ldflags $LDFLAGS
30 if { [istarget spu*-*-*] } {
31 set LDFLAGS "$LDFLAGS --local-store 0:0"
32 }
33 if { [istarget alpha*-*-* ] } {
34 # The compress1 test is written expecting 32-bit addresses; force the
35 # executable down into the low address space to match.
36 # ??? How can we adjust just the one testcase?
37 set LDFLAGS "$LDFLAGS -Ttext-segment 0x1000000"
38 }
39
40 if { [istarget "*-*-nacl*"] } {
41 # The eh[1-4] cases are written to expect ELFCLASS64 layout on x86-64.
42 # But the target default is ELFCLASS32. So the cases explicitly use
43 # -melf_x86_64 to select that, but NaCl needs a different emulation name.
44 set options_regsub(ld) {-melf_x86_64 -melf_x86_64_nacl}
45 }
46
47 if { [istarget "*-*-solaris*"] } {
48 # Same for Solaris
49 set options_regsub(ld) {-melf_x86_64 -melf_x86_64_sol2}
50 }
51
52 if { [is_remote host] } then {
53 remote_download host merge.ld
54 }
55
56 if { ![istarget hppa64*-hpux*] } {
57 run_ld_link_tests {
58 {"Build symbol3.a"
59 "" ""
60 {symbol3.s} {} "symbol3.a"}
61 {"Build symbol3w.a"
62 "" ""
63 {symbol3w.s} {} "symbol3w.a"}
64 }
65
66 if { [check_shared_lib_support] } then {
67 run_ld_link_tests {
68 {"Build pr14170a.o" "" "" "pr14170a.s" {} "pr14170.a" }
69 }
70 setup_xfail "tic6x-*-*"
71 run_ld_link_tests {
72 {"Build shared library for pr14170"
73 "-shared" "" "pr14170b.s" {} "pr14170.so" }
74 {"PR ld/14170"
75 "tmpdir/pr14170a.o tmpdir/pr14170.so" "" "pr14170c.s"
76 { } "pr14170" }
77 }
78 }
79 }
80
81 # Run a test to check linking a shared library with a broken linker
82 # script that accidentally marks dynamic sections as notes. The
83 # resulting executable is not expected to work, but the linker
84 # should not seg-fault whilst creating the binary.
85 #
86 # Only run the test on targets thats support creating shared libraries.
87 if { [check_shared_lib_support] } then {
88 setup_xfail "tic6x-*-*"
89 run_ld_link_tests {
90 {"Build shared library for next test"
91 "-shared" "" "note-3.s" {} "note-3.so" }
92 {"Link using broken linker script"
93 "--script note-3.t tmpdir/note-3.so" "" ""
94 { { ld "note-3.l" } }
95 "a.out" }
96 }
97 }
98
99 set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
100 foreach t $test_list {
101 # We need to strip the ".d", but can leave the dirname.
102 verbose [file rootname $t]
103 run_dump_test [file rootname $t]
104 }
105
106 if { [istarget *-*-linux*]
107 || [istarget *-*-nacl*]
108 || [istarget *-*-gnu*] } {
109 run_ld_link_tests {
110 {"Weak symbols in dynamic objects 1 (support)"
111 "-shared" "" {weak-dyn-1a.s}
112 {}
113 "libweakdyn1a.so"}
114 {"Weak symbols in dynamic objects 1 (main test)"
115 "-shared tmpdir/libweakdyn1a.so -Tweak-dyn-1.ld" "" {weak-dyn-1b.s}
116 {{readelf {--relocs --wide} weak-dyn-1.rd}}
117 "libweakdyn1b.so"}
118 }
119 }
120
121 #v850 gas complains about .tbss.var section attributes.
122 if { [check_gc_sections_available] && ![istarget "v850-*-*"] } {
123 run_ld_link_tests {
124 {"--gc-sections on tls variable"
125 "--gc-section" "" {tls_gc.s} {} "tls_gc"}
126 }
127 }
128
129 set LDFLAGS $old_ldflags
130
131 # The following tests require running the executable generated by ld.
132 if ![isnative] {
133 return
134 }
135
136 if [check_gc_sections_available] {
137 run_cc_link_tests {
138 {"PR ld/13195" "-Wl,--gc-sections" ""
139 {pr13195.c} {} "pr13195"}
140 }
141 }
142
143 set array_tests {
144 {"preinit array" "" "" {preinit.c} "preinit" "preinit.out"}
145 {"init array" "" "" {init.c} "init" "init.out"}
146 {"fini array" "" "" {fini.c} "fini" "fini.out"}
147 {"init array mixed" "" "" {init-mixed.c} "init-mixed" "init-mixed.out" "-I."}
148 }
149 set array_tests_pie {
150 {"PIE preinit array" "-pie" "" {preinit.c} "preinit" "preinit.out" "-fPIE" }
151 {"PIE init array" "-pie" "" {init.c} "init" "init.out" "-fPIE"}
152 {"PIE fini array" "-pie" "" {fini.c} "fini" "fini.out" "-fPIE"}
153 {"PIE init array mixed" "-pie" "" {init-mixed.c} "init-mixed" "init-mixed.out" "-I. -fPIE"}
154 {"PIE PR ld/14525" "-pie" "" {pr14525.c} "pr14525" "pr14525.out" "-fPIE"}
155 }
156 set array_tests_static {
157 {"static preinit array" "-static" "" {preinit.c} "preinit" "preinit.out"}
158 {"static init array" "-static" "" {init.c} "init" "init.out"}
159 {"static fini array" "-static" "" {fini.c} "fini" "fini.out"}
160 {"static init array mixed" "-static" "" {init-mixed.c} "init-mixed" "init-mixed.out" "-I."}
161 }
162
163 # NetBSD ELF systems do not currently support the .*_array sections.
164 set xfails [list "*-*-netbsdelf*"]
165 run_ld_link_exec_tests $xfails $array_tests
166
167 if { [istarget *-*-linux*]
168 || [istarget *-*-nacl*]
169 || [istarget *-*-gnu*] } {
170 run_ld_link_exec_tests $xfails $array_tests_pie
171 }
172
173 # Be cautious to not XFAIL for *-*-linux-gnu*, *-*-kfreebsd-gnu*, etc.
174 switch -regexp $target_triplet {
175 ^\[^-\]*-\[^-\]*-gnu.*$ {
176 # <http://www.gnu.org/software/hurd/open_issues/binutils.html#static>
177 lappend xfails "*-*-*"
178 }
179 }
180 run_ld_link_exec_tests $xfails $array_tests_static
181
182 catch "exec rm -f tmpdir/preinit tmpdir/init tmpdir/fini tmpdir/init-mixed" status
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