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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
# Copyright 2012-2013 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/>.
standard_testfile
if [build_executable ${testfile}.exp $testfile] {
return -1
}
set pipeline_counter 0
set objcopy_program [gdb_find_objcopy]
# Run a pipeline of processes through 'run_on_host'.
# TEST is the base name of the test, it is modified and passed to 'run_on_host'.
# Each subsequent argument is a list of the form {PROGRAM [ARG]...}.
# It is passed to 'run_on_host'. However, before being passed, if input and
# output files are not specified in the list, then this proc provides them.
# Each program in the pipeline takes its input from the previous
# program's output.
proc pipeline {test args} {
global pipeline_counter
set input_file {}
foreach arglist $args {
verbose "raw args are $arglist"
set program [lindex $arglist 0]
set arguments [lindex $arglist 1]
set input [lindex $arglist 2]
set output [lindex $arglist 3]
if {$input == ""} {
set input $input_file
}
if {$output == ""} {
set output [standard_output_file pipe.[pid].$pipeline_counter]
incr pipeline_counter
}
verbose "cooked args are [list $program $arguments $input $output]"
if {[run_on_host "$test - invoke $program" $program $arguments \
$input $output]} {
return -1
}
set input_file $output
}
return 0
}
# Extract the dynamic symbols from the main binary, there is no need
# to also have these in the normal symbol table.
remote_file host delete ${binfile}.dynsyms
if {[pipeline "nm -D" \
[list [transform nm] "-D ${binfile} --format=posix --defined-only"] \
[list awk "\\{print\\ \\\$1\\}"] \
[list sort "" "" "${binfile}.dynsyms"]]} {
return -1
}
# Extract all the text (i.e. function) symbols from the debuginfo.
# (Note that we actually also accept "D" symbols, for the benefit
# of platforms like PowerPC64 that use function descriptors.)
remote_file host delete ${binfile}.funcsyms
if {[pipeline "nm" \
[list [transform nm] "${binfile} --format=posix --defined-only"] \
[list awk "\\{if(\\\$2==\"T\"||\\\$2==\"t\"||\\\$2==\"D\")print\\ \\\$1\\}"] \
[list sort "" "" "${binfile}.funcsyms"]]} {
return -1
}
# Keep all the function symbols not already in the dynamic symbol
# table.
remote_file host delete ${binfile}.keep_symbols
if {[run_on_host "comm" "comm" "-13 ${binfile}.dynsyms ${binfile}.funcsyms" "" \
"${binfile}.keep_symbols"]} {
return -1
}
# GDB specific - we do not have split executable in advance.
remote_file host delete ${binfile}.strip
if {[run_on_host "strip" [transform strip] \
"--strip-all -R .comment -o ${binfile}.strip ${binfile}"]} {
return -1
}
# Separate full debug info into ${binfile}.debug.
remote_file host delete ${binfile}.debug
if {[run_on_host "copydebug" ${objcopy_program} \
"--only-keep-debug ${binfile} ${binfile}.debug"]} {
return -1
}
# Copy the full debuginfo, keeping only a minimal set of symbols and
# removing some unnecessary sections.
remote_file host delete ${binfile}.mini_debuginfo
if {[run_on_host "objcopy 1" ${objcopy_program} "-S --remove-section .gdb_index --remove-section .comment --keep-symbols=${binfile}.keep_symbols ${binfile}.debug ${binfile}.mini_debuginfo"]} {
return -1
}
# Add the .gnu_debuglink section to the .gnu_debugdata file.
# .gnu_debuglink is normally not present in the .gnu_debugdata section but in
# some files there may be PT_NOTE with NT_GNU_BUILD_ID and GDB could look up
# the .debug file from it. This is only an additional test of GDB, such link
# is not present in usual MiniDebugInfo sections.
if {[run_on_host "addlink" ${objcopy_program} \
"--add-gnu-debuglink=${binfile}.debug ${binfile}.mini_debuginfo ${binfile}.mini_debuginfo-debuglink"]} {
return -1
}
# Inject the compressed data into the .gnu_debugdata section of the
# original binary.
remote_file host delete ${binfile}.mini_debuginfo-debuglink.xz
if {[run_on_host "xz" "xz" "-k ${binfile}.mini_debuginfo-debuglink"]} {
return -1
}
remote_file host delete ${binfile}.test
if {[run_on_host "objcopy 2" ${objcopy_program} "--add-section .gnu_debugdata=${binfile}.mini_debuginfo-debuglink.xz ${binfile}.strip ${binfile}.test"]} {
return -1
}
clean_restart "$testfile.strip"
gdb_test "p debugdata_function" \
{No symbol table is loaded\. Use the "file" command\.} \
"no symtab"
clean_restart "$testfile.test"
if {$gdb_file_cmd_debug_info == "lzma"} {
unsupported "LZMA support not available in this gdb"
} else {
gdb_test "p debugdata_function" \
{ = {<text variable, no debug info>} 0x[0-9a-f]+ <debugdata_function>} \
"have symtab"
}
# Be sure to test the 'close' method on the MiniDebugInfo BFD.
if {[gdb_unload]} {
fail "unload MiniDebugInfo"
} else {
pass "unload MiniDebugInfo"
}
gdb_exit
|
