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1d506c26 | 1 | # Copyright 2006-2024 Free Software Foundation, Inc. |
3ec033fa KB |
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 | # This test creates a shared library and a main program which uses | |
17 | # that library, extracts the debug info of the library to a separate | |
18 | # file, and then tests that a symbol from the shared library is | |
19 | # accessible using both absolute and relative settings of | |
20 | # LD_LIBRARY_PATH. | |
21 | ||
22 | # This test needs to change the environment in which the test program | |
23 | # is run, specifically the setting of LD_LIBRARY_PATH. GDB can adjust | |
24 | # this setting for both native and extended-remote targets, but not | |
25 | # for targets to which GDB connects after the program has already | |
26 | # started. Therefore, this test won't work for targets which use | |
27 | # "target remote". | |
28 | require !use_gdb_stub | |
29 | require {have_compile_flag -std=c11} | |
30 | ||
31 | set testfile tls-sepdebug | |
32 | set srcmainfile ${testfile}-main.c | |
33 | set srcsharedfile ${testfile}-shared.c | |
34 | ||
35 | set binmainfile [standard_output_file ${testfile}-main] | |
36 | set binsharedbase ${testfile}-shared.so | |
37 | set binsharedfile [standard_output_file ${binsharedbase}] | |
38 | ||
39 | # Build the shared library, but use explicit -soname; otherwise the | |
40 | # full path to the library would get encoded into ${binmainfile} | |
41 | # making LD_LIBRARY_PATH tests useless. | |
42 | # | |
43 | # The compile flag -std=c11 is required because the test case uses | |
44 | # 'thread_local' to indicate thread local storage. This is available | |
45 | # as a macro starting in C11 and became a C-language keyword in C23. | |
46 | if { [gdb_compile_shlib \ | |
47 | "${srcdir}/${subdir}/${srcsharedfile}" "${binsharedfile}" \ | |
48 | [list debug \ | |
49 | ldflags=-Wl,-soname=${binsharedbase} \ | |
50 | additional_flags=-std=c11]] \ | |
51 | != "" } { | |
52 | untested "Couldn't compile test library" | |
53 | return -1 | |
54 | } | |
55 | ||
56 | # Strip debug information from $binsharedfile, placing it in | |
57 | # ${binsharedfile}.debug. Also add a .gnu_debuglink in the former, | |
58 | # pointing to the latter. | |
59 | gdb_gnu_strip_debug ${binsharedfile} | |
60 | ||
61 | # Build main program, but do not use `shlib=' since that would | |
62 | # automatically add -rpath for gcc. | |
63 | if { [gdb_compile_pthreads \ | |
64 | "${srcdir}/${subdir}/${srcmainfile} ${binsharedfile}" \ | |
65 | "${binmainfile}" executable [list debug additional_flags=-std=c11]] \ | |
66 | != "" } { | |
67 | untested "Couldn't compile test program" | |
68 | return -1 | |
69 | } | |
70 | ||
71 | set absdir [file dirname [standard_output_file ${binsharedbase}]] | |
72 | ||
73 | foreach ld_library_path [list $absdir [relative_filename [pwd] $absdir]] \ | |
74 | name { absolute relative } { | |
75 | with_test_prefix $name { | |
76 | ||
77 | # Restart, but defer loading until after setting LD_LIBRARY_PATH. | |
78 | clean_restart | |
79 | ||
80 | gdb_test_no_output "set env LD_LIBRARY_PATH=$ld_library_path" \ | |
81 | "set env LD_LIBRARY_PATH" | |
82 | ||
83 | gdb_load ${binmainfile} | |
84 | ||
85 | if ![runto_main] { | |
86 | return | |
87 | } | |
88 | ||
89 | # Print a thread local variable from the shared library to be certain | |
90 | # that its symbols were loaded from the separate debuginfo file. | |
91 | gdb_test "print var" \ | |
92 | "\\\$1 = 42" \ | |
93 | "print TLS variable from a shared library with separate debug info file" | |
94 | } | |
95 | } |