159 lines
5.3 KiB
Text
159 lines
5.3 KiB
Text
# Copyright 2012-2016 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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standard_testfile
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if [build_executable ${testfile}.exp $testfile] {
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return -1
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}
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set pipeline_counter 0
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set objcopy_program [gdb_find_objcopy]
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# Run a pipeline of processes through 'run_on_host'.
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# TEST is the base name of the test, it is modified and passed to 'run_on_host'.
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# Each subsequent argument is a list of the form {PROGRAM [ARG]...}.
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# It is passed to 'run_on_host'. However, before being passed, if input and
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# output files are not specified in the list, then this proc provides them.
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# Each program in the pipeline takes its input from the previous
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# program's output.
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proc pipeline {test args} {
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global pipeline_counter
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set input_file {}
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foreach arglist $args {
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verbose "raw args are $arglist"
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set program [lindex $arglist 0]
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set arguments [lindex $arglist 1]
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set input [lindex $arglist 2]
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set output [lindex $arglist 3]
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if {$input == ""} {
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set input $input_file
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}
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if {$output == ""} {
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set output [standard_output_file pipe.[pid].$pipeline_counter]
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incr pipeline_counter
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}
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verbose "cooked args are [list $program $arguments $input $output]"
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if {[run_on_host "$test - invoke $program" $program $arguments \
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$input $output]} {
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return -1
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}
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set input_file $output
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}
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return 0
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}
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# Extract the dynamic symbols from the main binary, there is no need
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# to also have these in the normal symbol table.
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remote_file host delete ${binfile}.dynsyms
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if {[pipeline "nm -D" \
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[list [transform nm] "-D ${binfile} --format=posix --defined-only"] \
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[list awk "\\{print\\ \\\$1\\}"] \
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[list sort "" "" "${binfile}.dynsyms"]]} {
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return -1
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}
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# Extract all the text (i.e. function) symbols from the debuginfo.
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# (Note that we actually also accept "D" symbols, for the benefit
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# of platforms like PowerPC64 that use function descriptors.)
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remote_file host delete ${binfile}.funcsyms
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if {[pipeline "nm" \
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[list [transform nm] "${binfile} --format=posix --defined-only"] \
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[list awk "\\{if(\\\$2==\"T\"||\\\$2==\"t\"||\\\$2==\"D\")print\\ \\\$1\\}"] \
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[list sort "" "" "${binfile}.funcsyms"]]} {
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return -1
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}
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# Keep all the function symbols not already in the dynamic symbol
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# table.
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remote_file host delete ${binfile}.keep_symbols
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if {[run_on_host "comm" "comm" "-13 ${binfile}.dynsyms ${binfile}.funcsyms" "" \
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"${binfile}.keep_symbols"]} {
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return -1
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}
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# GDB specific - we do not have split executable in advance.
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remote_file host delete ${binfile}.strip
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if {[run_on_host "strip" [transform strip] \
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"--strip-all -R .comment -o ${binfile}.strip ${binfile}"]} {
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return -1
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}
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# Separate full debug info into ${binfile}.debug.
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remote_file host delete ${binfile}.debug
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if {[run_on_host "copydebug" ${objcopy_program} \
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"--only-keep-debug ${binfile} ${binfile}.debug"]} {
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return -1
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}
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# Copy the full debuginfo, keeping only a minimal set of symbols and
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# removing some unnecessary sections.
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remote_file host delete ${binfile}.mini_debuginfo
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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"]} {
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return -1
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}
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# Add the .gnu_debuglink section to the .gnu_debugdata file.
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# .gnu_debuglink is normally not present in the .gnu_debugdata section but in
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# some files there may be PT_NOTE with NT_GNU_BUILD_ID and GDB could look up
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# the .debug file from it. This is only an additional test of GDB, such link
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# is not present in usual MiniDebugInfo sections.
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if {[run_on_host "addlink" ${objcopy_program} \
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"--add-gnu-debuglink=${binfile}.debug ${binfile}.mini_debuginfo ${binfile}.mini_debuginfo-debuglink"]} {
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return -1
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}
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# Inject the compressed data into the .gnu_debugdata section of the
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# original binary.
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remote_file host delete ${binfile}.mini_debuginfo-debuglink.xz
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if {[run_on_host "xz" "xz" "-k ${binfile}.mini_debuginfo-debuglink"]} {
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return -1
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}
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remote_file host delete ${binfile}.test
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if {[run_on_host "objcopy 2" ${objcopy_program} "--add-section .gnu_debugdata=${binfile}.mini_debuginfo-debuglink.xz ${binfile}.strip ${binfile}.test"]} {
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return -1
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}
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clean_restart "$testfile.strip"
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gdb_test "p debugdata_function" \
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{No symbol table is loaded\. Use the "file" command\.} \
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"no symtab"
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clean_restart "$testfile.test"
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if {$gdb_file_cmd_debug_info == "lzma"} {
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unsupported "LZMA support not available in this gdb"
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} else {
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gdb_test "p debugdata_function" \
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{ = {<text variable, no debug info>} 0x[0-9a-f]+ <debugdata_function>} \
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"have symtab"
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}
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# Be sure to test the 'close' method on the MiniDebugInfo BFD.
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if {[gdb_unload]} {
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fail "unload MiniDebugInfo"
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} else {
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pass "unload MiniDebugInfo"
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}
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gdb_exit
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