Commit | Line | Data |
---|---|---|
42a4f53d | 1 | # Copyright 2009-2019 Free Software Foundation, Inc. |
9107fc8d PA |
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 this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # Test multi-exec / multi-process features that work for all configurations, | |
17 | # even ones that cannot run multiple processes simultaneously. | |
18 | ||
19 | set testfile "multi-arch-exec" | |
20 | ||
21 | # The plain remote target can't do multiple inferiors. | |
079670b9 | 22 | if [use_gdb_stub] { |
9107fc8d | 23 | return |
e780d813 DE |
24 | } |
25 | ||
26 | # The 64-bit compile may succeed for i386-linux, but gdb won't be able | |
27 | # to load the file. | |
28 | if [istarget "i?86-*linux*"] { | |
29 | return | |
9107fc8d PA |
30 | } |
31 | ||
777a42f1 PA |
32 | # The testcase builds two programs, each of its own architecture. For |
33 | # example, one built with -m64, another with -m32. The exact compiler | |
34 | # options depends on target triplet. We generically refer to the | |
35 | # architectures simply as 'architecture 1' and 'architecture 2'. Each | |
36 | # program is actually built twice, once for each architecture, because | |
37 | # we test both execing from arch1 to arch2 and from arch2 to arch1. | |
38 | # The architecture of the executable that execs is encoded in the | |
39 | # binaries' names, like so: | |
40 | # | |
41 | # $first_arch-multi-arch-exec # execing program | |
42 | # $first_arch-multi-arch-exec-hello # execed program | |
43 | ||
44 | # Append the options necessary to build a program for architecture 1 | |
45 | # to the OPTIONS_VAR list. | |
46 | ||
47 | proc append_arch1_options {options_var} { | |
48 | upvar 1 $options_var options | |
49 | ||
50 | if { [istarget "aarch64*-*-*"] } { | |
51 | return 1 | |
52 | } | |
53 | ||
54 | lappend options "additional_flags=-m64" | |
55 | return 1 | |
9107fc8d PA |
56 | } |
57 | ||
777a42f1 PA |
58 | # Append the options necessary to build a program for architecture 2 |
59 | # to the OPTIONS_VAR list. | |
60 | ||
61 | proc append_arch2_options {options_var} { | |
62 | upvar 1 $options_var options | |
63 | ||
64 | if { [istarget "aarch64*-*-*"] } { | |
65 | if {[info exists ARM_CC_FOR_TARGET]} { | |
66 | lappend options "compiler=${ARM_CC_FOR_TARGET}" | |
67 | return 1 | |
68 | } else { | |
69 | unsupported "ARM compiler is not known" | |
70 | return 0 | |
71 | } | |
72 | } | |
73 | ||
74 | if [istarget "s390*-*-*"] { | |
75 | set march "-m31" | |
76 | } else { | |
77 | set march "-m32" | |
78 | } | |
79 | lappend options "additional_flags=${march}" | |
80 | return 1 | |
9107fc8d PA |
81 | } |
82 | ||
777a42f1 PA |
83 | # Append the options necessary to build a program for architecture |
84 | # ARCH to the OPTIONS_VAR list. Returns true on success. | |
71be1fdc | 85 | |
777a42f1 PA |
86 | proc append_arch_options {arch options_var} { |
87 | upvar 1 $options_var options | |
88 | ||
89 | if {$arch == 1} { | |
90 | return [append_arch1_options options] | |
91 | } elseif {$arch == 2} { | |
92 | return [append_arch2_options options] | |
71be1fdc | 93 | } else { |
777a42f1 | 94 | error "unhandled architecture: $arch" |
71be1fdc | 95 | } |
71be1fdc YQ |
96 | } |
97 | ||
777a42f1 PA |
98 | # Build the executables for testing with FIRST_ARCH (either 1 or 2) as |
99 | # the architecture before the exec. Returns true on success. | |
100 | ||
101 | proc build_executables { first_arch } { | |
102 | ||
103 | # Can't use standard_testfile, we want executables with specialized | |
104 | # names. | |
105 | set from_exec "$first_arch-multi-arch-exec" | |
106 | set from_srcfile multi-arch-exec.c | |
107 | set from_binfile [standard_output_file ${from_exec}] | |
108 | ||
109 | set to_exec "$first_arch-multi-arch-exec-hello" | |
110 | set to_srcfile hello.c | |
111 | set to_binfile [standard_output_file ${to_exec}] | |
112 | ||
113 | # Build two executables, one for each arch. | |
114 | ||
115 | if {$first_arch == 1} { | |
116 | set from_arch 1 | |
117 | set to_arch 2 | |
118 | } elseif {$first_arch == 2} { | |
119 | set from_arch 2 | |
120 | set to_arch 1 | |
121 | } else { | |
122 | error "unhandled first architecture: $first_arch" | |
123 | } | |
124 | ||
125 | set from_options [list debug pthreads] | |
126 | if {![append_arch_options $from_arch from_options]} { | |
127 | return 0 | |
128 | } | |
129 | ||
130 | if { [build_executable "failed to prepare" ${from_exec} "${from_srcfile}" \ | |
131 | $from_options] } { | |
132 | return 0 | |
133 | } | |
134 | ||
135 | set to_options [list debug] | |
136 | if {![append_arch_options $to_arch to_options]} { | |
137 | return 0 | |
138 | } | |
139 | ||
140 | if { [build_executable "failed to prepare" ${to_exec} "${to_srcfile}" \ | |
141 | $to_options] } { | |
142 | return 0 | |
143 | } | |
144 | ||
145 | return 1 | |
9107fc8d PA |
146 | } |
147 | ||
777a42f1 PA |
148 | proc do_test { first_arch mode selected_thread } { |
149 | set from_exec "$first_arch-multi-arch-exec" | |
ae780a21 | 150 | |
777a42f1 | 151 | clean_restart ${from_exec} |
cbd2b4e3 PA |
152 | if ![runto all_started] then { |
153 | fail "couldn't run to all_started" | |
ae780a21 SM |
154 | return -1 |
155 | } | |
156 | ||
cbd2b4e3 PA |
157 | # Delete the breakpoint at 'all_started' otherwise GDB may |
158 | # switch context back to thread 1 to step over the breakpoint. | |
159 | delete_breakpoints | |
160 | ||
161 | # A location for this breakpoint should be found in the new | |
162 | # post-exec image too. | |
163 | gdb_breakpoint main | |
164 | ||
165 | gdb_test "thread $selected_thread" "Switching to thread $selected_thread .*" | |
166 | ||
ae780a21 SM |
167 | gdb_test_no_output "set follow-exec-mode $mode" |
168 | ||
169 | # Test that GDB updates the target description / arch successfuly | |
170 | # after the exec. | |
cbd2b4e3 | 171 | gdb_test "continue" "Breakpoint 2, main.*" "continue across exec that changes architecture" |
9107fc8d PA |
172 | } |
173 | ||
777a42f1 PA |
174 | # Test both arch1=>arch2 and arch2=>arch1. |
175 | foreach_with_prefix first_arch {1 2} { | |
176 | if {![build_executables $first_arch]} { | |
177 | continue | |
178 | } | |
179 | ||
180 | # Test handling the exec event with either the main thread or the | |
181 | # second thread selected. This tries to ensure that GDB doesn't read | |
182 | # registers off of the execing thread before figuring out its | |
183 | # architecture. | |
184 | foreach_with_prefix selected_thread {1 2} { | |
185 | foreach_with_prefix follow_exec_mode {"same" "new"} { | |
186 | do_test $first_arch $follow_exec_mode $selected_thread | |
187 | } | |
cbd2b4e3 | 188 | } |
ae780a21 | 189 | } |