1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
# Copyright 2009, 2010, 2011 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Contributed by Jan Kratochvil <jan.kratochvil@redhat.com>.
# Test GDB can cope with two libraries loaded with overlapping VMA ranges.
# Prelink libraries first so they can be loaded and their native address.
# In such case `struct linkmap'.l_addr will be zero. Provide different
# unprelinked library files on the disk which have zero-based VMAs. These
# different files should have their .dynamic section at a different offset in
# page size so that we get for
# warning: .dynamic section for "..." is not at the expected address
# the reason
# (wrong library or version mismatch?)
# and not:
# difference appears to be caused by prelink, adjusting expectations
# In such case both disk libraries will be loaded at VMAs starting at zero.
if [skip_shlib_tests] {
return 0
}
# Are we on a target board? It is required for attaching to a process.
if [is_remote target] {
return 0
}
if [get_compiler_info binfile-unused] {
return -1;
}
# Library file.
set libname "solib-overlap-lib"
set srcfile_lib ${srcdir}/${subdir}/${libname}.c
# Binary file.
set testfile "solib-overlap-main"
set srcfile ${srcdir}/${subdir}/${testfile}.c
# Base addresses for `prelink -r' which should be compatible with both -m32 and
# -m64 targets. If it clashes with system prelinked libraries it would give
# false PASS.
# Prelink first lib1 at 0x40000000 and lib2 at 0x41000000.
# During second pass try lib1 at 0x50000000 and lib2 at 0x51000000.
foreach prelink_lib1 {0x40000000 0x50000000} {
set prelink_lib2 [format "0x%x" [expr $prelink_lib1 + 0x01000000]]
set old_prefix $pf_prefix
lappend pf_prefix "$prelink_lib1:"
# Library file.
set binfile_lib1 ${objdir}/${subdir}/${libname}1-${prelink_lib1}.so
set binfile_lib2 ${objdir}/${subdir}/${libname}2-${prelink_lib1}.so
set lib_flags {debug}
# Binary file.
set binfile_base ${testfile}-${prelink_lib1}
set binfile ${objdir}/${subdir}/${binfile_base}
set bin_flags [list debug shlib=${binfile_lib1} shlib=${binfile_lib2}]
set escapedbinfile [string_to_regexp ${binfile}]
if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib1} $lib_flags] != ""
|| [gdb_compile_shlib ${srcfile_lib} ${binfile_lib2} $lib_flags] != ""
|| [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } {
untested "Could not compile ${binfile_lib1}, ${binfile_lib2} or ${binfile}."
return -1
}
if {[catch "system \"prelink -N -r ${prelink_lib1} ${binfile_lib1}\""] != 0
|| [catch "system \"prelink -N -r ${prelink_lib2} ${binfile_lib2}\""] != 0} {
# Maybe we don't have prelink.
untested "Could not prelink ${binfile_lib1} or ${binfile_lib2}."
return -1
}
# Start the program running and then wait for a bit, to be sure
# that it can be attached to.
set testpid [eval exec $binfile &]
sleep 2
if { [istarget "*-*-cygwin*"] } {
# testpid is the Cygwin PID, GDB uses the Windows PID, which might be
# different due to the way fork/exec works.
set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
}
remote_exec build "mv -f ${binfile_lib1} ${binfile_lib1}-running"
remote_exec build "mv -f ${binfile_lib2} ${binfile_lib2}-running"
# Provide another exported function name to cause different sizes of sections.
lappend lib_flags additional_flags=-DSYMB
if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib1} $lib_flags] != ""
|| [gdb_compile_shlib ${srcfile_lib} ${binfile_lib2} $lib_flags] != ""} {
untested "Could not recompile ${binfile_lib1} or ${binfile_lib2}."
remote_exec build "kill -9 ${testpid}"
return -1
}
clean_restart ${binfile_base}
# This testcase currently does not support remote targets.
# gdb_load_shlibs ${binfile_lib1} ${binfile_lib2}
# Here we should get:
# warning: .dynamic section for ".../solib-overlap-lib1.so" is not at the expected address (wrong library or version mismatch?)
# warning: .dynamic section for ".../solib-overlap-lib2.so" is not at the expected address (wrong library or version mismatch?)
set test attach
gdb_test_multiple "attach $testpid" $test {
-re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
pass $test
}
-re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {
# Response expected on Cygwin
pass $test
}
}
# Detach the process.
gdb_test "detach" "Detaching from program: .*$escapedbinfile, process $testpid"
# Wait a bit for gdb to finish detaching
sleep 5
remote_exec build "kill -9 ${testpid}"
set pf_prefix $old_prefix
}
|
