bf6d8a91ea
With "dwz -m", "main" appears in both the PU and the importing CU when running anon-struct.exp. However, the PU does not have a file name. So, find_main_filename returns the empty string, making deduce_language_from_filename return language_unknown. This patch fixes this problem by changing gdb to use the ordinary symbol-lookup functions to find "main"'s symbol. Then, it examines the symbol's language. I think this is cleaner than the current approach. For one thing it avoids trying to guess the language based on the source file name, instead deferring to the presumably more reliable debuginfo. Another possible fix would have been to change how the file name is found via the "qf" methods. However, I think the approach given is preferable for the reason outlined above. This required a minor test suite change, as now a symtab is expanded during the search for "main". Built and regtested (both ways) on x86-64 Fedora 18. * symfile.c (set_initial_language): Look up "main" symbol and use its language. * symtab.c (find_main_filename): Remove. * symtab.h (find_main_filename): Remove. * gdb.base/maint.exp: Allow zero symtabs to be expanded.
530 lines
20 KiB
Text
530 lines
20 KiB
Text
# Copyright 1998-2013 Free Software Foundation, Inc.
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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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# This file was written by Elena Zannoni (ezannoni@cygnus.com)
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# this file tests maintenance commands and help on those.
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# source file used is break.c
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#maintenance check-psymtabs -- Check consistency of psymtabs vs symtabs
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#maintenance check-symtabs -- Check consistency of symtabs
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#maintenance expand-symtabs -- Expand symtabs matching a file regexp
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#maintenance set -- Set GDB internal variables used by the GDB maintainer
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#maintenance show -- Show GDB internal variables used by the GDB maintainer
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#maintenance demangle -- Demangle a C++ mangled name
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#maintenance dump-me -- Get fatal error; make debugger dump its core
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#maintenance print -- Maintenance command for printing GDB internal state
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#maintenance info -- Commands for showing internal info about the program being debugged
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#maintenance internal-error -- Give GDB an internal error.
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#
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#maintenance print dummy-frames -- Print the dummy frame stack
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#maintenance print statistics -- Print statistics about internal gdb state
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#maintenance print objfiles -- Print dump of current object file definitions
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#maintenance print psymbols -- Print dump of current partial symbol definitions
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#maintenance print msymbols -- Print dump of current minimal symbol definitions
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#maintenance print symbols -- Print dump of current symbol definitions
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#maintenance print type -- Print a type chain for a given symbol
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#maintenance print unwind -- Print unwind table entry at given address
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#
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#
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#maintenance info sections -- List the BFD sections of the exec and core files
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#maintenance info breakpoints -- Status of all breakpoints
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#
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standard_testfile break.c break1.c
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if {[prepare_for_testing $testfile.exp $testfile \
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[list $srcfile $srcfile2] {debug nowarnings}]} {
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untested $testfile.exp
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return -1
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}
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# The commands we test here produce many lines of output; disable "press
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# <return> to continue" prompts.
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gdb_test_no_output "set height 0"
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# Tests that require that no program is running
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gdb_file_cmd ${binfile}
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# Test for a regression where this command would internal-error if the
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# program wasn't running.
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gdb_test "maint print registers" "Name.*Nr.*Rel.*Offset.*Size.*Type.*"
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# Test "mt expand-symtabs" here as it's easier to verify before we
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# run the program.
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gdb_test_no_output "mt set per on" "mt set per on for expand-symtabs"
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gdb_test_multiple "mt expand-symtabs $subdir/break\[.\]c$" \
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"mt expand-symtabs" {
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-re "#primary symtabs: (1|2) \\(\[+\](0|1|2)\\),.*$gdb_prompt $" {
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# This should expand at most two primary symtabs.
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# "Normally" it will not expand any, because the symtab
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# holding "main" will already have been expanded, but if the
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# file is compiled with -fdebug-types-section then a second primary
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# symtab for break.c will be created for any types.
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pass "mt expand-symtabs"
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}
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}
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gdb_test "mt set per off" ".*" "mt set per off for expand-symtabs"
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# Tests that can or should be done with a running program
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gdb_load ${binfile}
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if ![runto_main] then {
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perror "tests suppressed"
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}
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# If we're using .gdb_index there will be no psymtabs.
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set have_gdb_index 0
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gdb_test_multiple "maint info sections .gdb_index" "check for .gdb_index" {
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-re ": .gdb_index.*$gdb_prompt $" {
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set have_gdb_index 1
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}
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-re ".*$gdb_prompt $" {
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;# Nothing to do, present to avoid a FAIL.
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}
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}
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#
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# this command does not produce any output
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# unless there is some problem with the symtabs and psymtabs
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# so that branch will really never be covered in this tests here!!
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#
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# guo: on linux this command output is huge. for some reason splitting up
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# the regexp checks works.
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#
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send_gdb "maint check-psymtabs\n"
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gdb_expect {
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-re "^maint check-psymtabs" {
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gdb_expect {
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-re "$gdb_prompt $" {
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pass "maint check-psymtabs"
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}
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timeout { fail "(timeout) maint check-psymtabs" }
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}
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}
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-re ".*$gdb_prompt $" { fail "maint check-psymtabs" }
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timeout { fail "(timeout) maint check-psymtabs" }
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}
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# This command does not produce any output unless there is some problem
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# with the symtabs, so that branch will really never be covered in the
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# tests here!!
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gdb_test_no_output "maint check-symtabs"
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gdb_test_no_output "maint set per-command on"
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gdb_test "maint set per-command off" \
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"Command execution time: \[0-9.\]+ \\(cpu\\), \[0-9.\]+ \\(wall\\)\[\r\n\]+Space used: $decimal \\(\\+$decimal for this command\\)\[\r\n\]+#symtabs: $decimal \\(\\+$decimal\\), #primary symtabs: $decimal \\(\\+$decimal\\), #blocks: $decimal \\(\\+$decimal\\)"
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gdb_test "maint demangle" \
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"\"maintenance demangle\" takes an argument to demangle\\."
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gdb_test "maint demangle main" "Can't demangle \"main\""
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# The timeout value is raised, because printing all the symbols and
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# statistical information about Cygwin and Windows libraries takes a lot
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# of time.
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if [istarget "*-*-cygwin*"] {
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set oldtimeout $timeout
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set timeout [expr $timeout + 500]
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}
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send_gdb "maint print statistics\n"
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gdb_expect {
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-re "Statistics for\[^\n\r\]*maint\[^\n\r\]*:\r\n Number of \"minimal\" symbols read: $decimal\r\n( Number of \"partial\" symbols read: $decimal\r\n)? Number of \"full\" symbols read: $decimal\r\n Number of \"types\" defined: $decimal\r\n( Number of psym tables \\(not yet expanded\\): $decimal\r\n)?( Number of read CUs: $decimal\r\n Number of unread CUs: $decimal\r\n)? Number of symbol tables: $decimal\r\n Number of symbol tables with line tables: $decimal\r\n Number of symbol tables with blockvectors: $decimal\r\n Total memory used for objfile obstack: $decimal\r\n Total memory used for BFD obstack: $decimal\r\n Total memory used for psymbol cache: $decimal\r\n Total memory used for macro cache: $decimal\r\n Total memory used for file name cache: $decimal\r\n" {
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gdb_expect {
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-re "$gdb_prompt $" {
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pass "maint print statistics"
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}
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timeout { fail "(timeout) maint print statistics" }
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}
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}
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-re ".*$gdb_prompt $" { fail "maint print statistics" }
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timeout { fail "(timeout) maint print statistics" }
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}
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# There aren't any ...
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gdb_test_no_output "maint print dummy-frames"
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send_gdb "maint print objfiles\n"
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# To avoid timeouts, we avoid expects with many .* patterns that match
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# many lines. Instead, we keep track of which milestones we've seen
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# in the output, and stop when we've seen all of them.
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set header 0
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set psymtabs 0
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set symtabs 0
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set keep_looking 1
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while {$keep_looking} {
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gdb_expect {
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-re ".*Object file.*maint($EXEEXT)?: Objfile at $hex, bfd at $hex, \[0-9\]* minsyms\[\r\t \]+\n" { set header 1 }
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-re ".*Psymtabs:\[\r\t \]+\n" { set psymtabs 1 }
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-re ".*Symtabs:\[\r\t \]+\n" { set symtabs 1 }
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-re ".*$gdb_prompt $" {
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set keep_looking 0
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}
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timeout {
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fail "(timeout) maint print objfiles"
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set keep_looking 0
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}
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}
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}
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proc maint_pass_if {val name} {
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if $val { pass $name } else { fail $name }
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}
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maint_pass_if $header "maint print objfiles: header"
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if { ! $have_gdb_index } {
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maint_pass_if $psymtabs "maint print objfiles: psymtabs"
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}
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maint_pass_if $symtabs "maint print objfiles: symtabs"
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gdb_test "maint print psymbols" \
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"print-psymbols takes an output file name and optional symbol file name" \
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"maint print psymbols w/o args"
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if { ! $have_gdb_index } {
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set psymbols_output [standard_output_file psymbols_output]
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send_gdb "maint print psymbols $psymbols_output ${srcdir}/${subdir}/${srcfile}\n"
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gdb_expect {
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-re "^maint print psymbols $psymbols_output \[^\n\]*\r\n$gdb_prompt $" {
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send_gdb "shell ls $psymbols_output\n"
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gdb_expect {
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-re "$psymbols_output\r\n$gdb_prompt $" {
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# We want this grep to be as specific as possible,
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# so it's less likely to match symbol file names in
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# psymbols_output. Yes, this actually happened;
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# poor expect got tons of output, and timed out
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# trying to match it. --- Jim Blandy <jimb@cygnus.com>
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send_gdb "shell grep 'main.*function' $psymbols_output\n"
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gdb_expect {
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-re ".main., function, $hex.*$gdb_prompt $" {
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pass "maint print psymbols 1"
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}
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-re ".*main. .., function, $hex.*$gdb_prompt $" {
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pass "maint print psymbols 2"
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}
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-re ".*$gdb_prompt $" { fail "maint print psymbols" }
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timeout { fail "(timeout) maint print psymbols" }
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}
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gdb_test "shell rm -f $psymbols_output" ".*" \
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"shell rm -f psymbols_output"
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}
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-re ".*$gdb_prompt $" { fail "maint print psymbols" }
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timeout { fail "(timeout) maint print psymbols" }
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}
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}
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-re ".*$gdb_prompt $" { fail "maint print psymbols" }
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timeout { fail "(timeout) maint print psymbols" }
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}
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}
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gdb_test "maint print msymbols" \
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"print-msymbols takes an output file name and optional symbol file name" \
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"maint print msymbols w/o args"
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set msymbols_output [standard_output_file msymbols_output]
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send_gdb "maint print msymbols $msymbols_output ${binfile}\n"
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gdb_expect {
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-re "^maint print msymbols $msymbols_output \[^\n\]*\r\n$gdb_prompt $" {
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send_gdb "shell ls $msymbols_output\n"
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gdb_expect {
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-re "$msymbols_output\r\n$gdb_prompt $" {
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send_gdb "shell grep factorial $msymbols_output\n"
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gdb_expect {
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-re "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*$gdb_prompt $" {
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pass "maint print msymbols"
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}
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-re ".*$gdb_prompt $" { fail "maint print msymbols" }
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timeout { fail "(timeout) maint print msymbols" }
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}
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gdb_test "shell rm -f $msymbols_output" ".*" \
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"shell rm -f msymbols_output"
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}
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-re ".*$gdb_prompt $" { fail "maint print msymbols" }
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timeout { fail "(timeout) maint print msymbols" }
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}
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}
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-re ".*$gdb_prompt $" { fail "maint print msymbols" }
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timeout { fail "(timeout) maint print msymbols" }
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}
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# Check that maint print msymbols allows relative pathnames
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set mydir [pwd]
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gdb_test "cd ${objdir}" \
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"Working directory [string_to_regexp ${objdir}]\..*" \
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"cd to objdir"
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gdb_test_multiple "maint print msymbols msymbols_output2 ${subdir}/${testfile}" "maint print msymbols" {
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-re "^maint print msymbols msymbols_output2 \[^\n\]*\r\n$gdb_prompt $" {
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gdb_test_multiple "shell ls msymbols_output2" "maint print msymbols" {
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-re "msymbols_output2\r\n$gdb_prompt $" {
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gdb_test_multiple "shell grep factorial msymbols_output2" "maint print msymbols" {
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-re "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*$gdb_prompt $" {
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pass "maint print msymbols"
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}
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-re ".*$gdb_prompt $" {
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fail "maint print msymbols"
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}
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timeout {
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fail "(timeout) maint print msymbols"
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}
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}
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gdb_test "shell rm -f msymbols_output2" ".*" \
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"shell rm -f msymbols_output2"
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}
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-re ".*$gdb_prompt $" {
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fail "maint print msymbols"
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}
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timeout {
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fail "(timeout) maint print msymbols"
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}
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}
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}
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-re ".*$gdb_prompt $" {
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fail "maint print msymbols"
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}
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timeout {
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fail "(timeout) maint print msymbols"
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}
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}
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gdb_test "cd ${mydir}" \
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"Working directory [string_to_regexp ${mydir}]\..*" \
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"cd to mydir"
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gdb_test "maint print symbols" \
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"Arguments missing: an output file name and an optional symbol file name" \
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"maint print symbols w/o args"
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# Request symbols for one particular source file so that we don't try to
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# dump the symbol information for the entire C library - over 500MB nowadays
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# for GNU libc.
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set symbols_output [standard_output_file symbols_output]
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send_gdb "maint print symbols $symbols_output ${srcdir}/${subdir}/${srcfile}\n"
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gdb_expect {
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-re "^maint print symbols $symbols_output \[^\n\]*\r\n$gdb_prompt $" {
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send_gdb "shell ls $symbols_output\n"
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gdb_expect {
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-re "$symbols_output\r\n$gdb_prompt $" {
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# See comments for `maint print psymbols'.
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send_gdb "shell grep 'main(.*block' $symbols_output\n"
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gdb_expect {
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-re "int main\\(int, char \\*\\*, char \\*\\*\\); block.*$gdb_prompt $" {
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pass "maint print symbols"
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}
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-re ".*$gdb_prompt $" { fail "maint print symbols" }
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timeout { fail "(timeout) maint print symbols" }
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}
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gdb_test "shell rm -f $symbols_output" ".*" \
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"shell rm -f symbols_output"
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}
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-re ".*$gdb_prompt $" { fail "maint print symbols" }
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timeout { fail "(timeout) maint print symbols" }
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}
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}
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-re ".*$gdb_prompt $" { fail "maint print symbols" }
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timeout { fail "(timeout) maint print symbols" }
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}
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set msg "maint print type"
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gdb_test_multiple "maint print type argc" $msg {
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-re "type node $hex\r\nname .int. \\($hex\\)\r\ntagname .<NULL>. \\($hex\\)\r\ncode $hex \\(TYPE_CODE_INT\\)\r\nlength \[24\]\r\nobjfile $hex\r\ntarget_type $hex\r\npointer_type $hex\r\nreference_type $hex\r\ntype_chain $hex\r\ninstance_flags $hex\r\nflags\r\nnfields 0 $hex\r\nvptr_basetype $hex\r\nvptr_fieldno -1\r\n$gdb_prompt $" {
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pass $msg
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}
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}
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if [istarget "hppa*-*-11*"] {
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setup_xfail hppa*-*-*11* CLLbs14860
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gdb_test_multiple "maint print unwind &main" "maint print unwind" {
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-re ".*unwind_table_entry \\($hex\\):\r\n\tregion_start = $hex <main>\r\n\tregion_end = $hex <main\\+\[0-9\]*>\r\n\tflags = Args_stored Save_RP\r\n\tRegion_description = $hex\r\n\tEntry_FR = $hex\r\n\tEntry_GR = $hex\r\n\tTotal_frame_size = $hex\r\n$gdb_prompt $" {
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pass "maint print unwind"
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}
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-re ".*unwind_table_entry \\($hex\\):\r\n\tregion_start = $hex <main>\r\n\tregion_end = $hex <main\\+\[0-9\]*>\r\n\tflags = Args_stored Save_RP\r\n\tFLD = $hex\r\n\tFLD = $hex\r\n\tFLD = $hex\r\n\tFLD = $hex\r\n$gdb_prompt $" {
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xfail "maint print unwind"
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}
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}
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}
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set oldtimeout $timeout
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set timeout [expr $timeout + 300]
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# It'd be nice to check for every possible section. However, that's
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# problematic, since the relative ordering wanders from release to
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# release of the compilers. Instead, we'll just check for two
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# sections which appear to always come out in the same relative
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# order. (If that changes, then we should just check for one
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# section.)
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#
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# And by the way: This testpoint will break for PA64, where a.out's
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# are ELF files.
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# Standard GNU names.
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set text_section ".text"
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set data_section ".data"
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gdb_test_multiple "maint info sections" "maint info sections" {
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-re "Exec file:\r\n.*maint($EXEEXT)?., file type.*ER_RO.*$gdb_prompt $" {
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# Looks like RealView which uses different section names.
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set text_section ER_RO
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set data_section ER_RW
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pass "maint info sections"
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}
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-re "Exec file:\r\n.*maint($EXEEXT)?., file type.*neardata.*$gdb_prompt $" {
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# c6x doesn't have .data section. It has .neardata and .fardata section.
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set data_section ".neardata"
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pass "maint info sections"
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}
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-re "Exec file:\r\n.*maint($EXEEXT)?., file type.*$gdb_prompt $" {
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pass "maint info sections"
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}
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}
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# Test for new option: maint info sections <section name>
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# If you don't have a .text section, this will require tweaking.
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gdb_test_multiple "maint info sections $text_section" \
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"maint info sections .text" {
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-re ".* \\.bss .*$gdb_prompt $" {
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fail "maint info sections .text"
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}
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-re ".* $data_section .*$gdb_prompt $" {
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fail "maint info sections .text"
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}
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-re ".* $text_section .*$gdb_prompt $" {
|
|
pass "maint info sections .text"
|
|
}
|
|
}
|
|
|
|
# Test for new option: CODE section flag
|
|
# If your data section is tagged CODE, xfail this test.
|
|
|
|
gdb_test_multiple "maint info sections CODE" "maint info sections CODE" {
|
|
-re ".* $data_section .*$gdb_prompt $" { fail "maint info sections CODE" }
|
|
-re ".* $text_section .*$gdb_prompt $" { pass "maint info sections CODE" }
|
|
}
|
|
|
|
# Test for new option: DATA section flag
|
|
# If your text section is tagged DATA, xfail this test.
|
|
#
|
|
# The "maint info sections DATA" test is marked for XFAIL on Windows,
|
|
# because Windows has text sections marked DATA.
|
|
setup_xfail "*-*-*cygwin*"
|
|
setup_xfail "*-*-*mingw*"
|
|
|
|
gdb_test_multiple "maint info sections DATA" "maint info sections DATA" {
|
|
-re ".* $text_section .*$gdb_prompt $" { fail "maint info sections DATA" }
|
|
-re ".* $data_section .*$gdb_prompt $" { pass "maint info sections DATA" }
|
|
-re ".* .rodata .*$gdb_prompt $" { pass "maint info sections DATA" }
|
|
}
|
|
|
|
set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
|
|
|
|
gdb_test_multiple "maint info breakpoints" "maint info breakpoints" {
|
|
-re "Num\[ \t\]+Type\[ \t\]+Disp\[ \t\]+Enb\[ \t\]+Address\[ \t\]+What\r\n1\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+$hex\[ \t\]+in main at.*break.c:$bp_location6 inf 1\r\n\[ \t\]+breakpoint already hit 1 time\r\n.*$gdb_prompt $" {
|
|
pass "maint info breakpoints"
|
|
}
|
|
-re "Num\[ \t\]+Type\[ \t\]+Disp\[ \t\]+Enb\[ \t\]+Address\[ \t\]+What\r\n1\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+$hex in main at.*break.c:$bp_location6 sspace 1\r\n\[ \t\]+breakpoint already hit 1 time\r\n-1\[ \t\]+shlib events\[ \t\]+keep\[ \t\]+y\[ \t\]+$hex.*breakpoint already hit.*$gdb_prompt $" {
|
|
pass "maint info breakpoints (with shlib events)"
|
|
}
|
|
}
|
|
|
|
gdb_test "maint print" \
|
|
"\"maintenance print\" must be followed by the name of a print command\\.\r\nList.*unambiguous\\..*" \
|
|
"maint print w/o args"
|
|
|
|
gdb_test "maint info" \
|
|
"\"maintenance info\" must be followed by the name of an info command\\.\r\nList.*unambiguous\\..*" \
|
|
"maint info w/o args"
|
|
|
|
gdb_test "maint" \
|
|
"\"maintenance\" must be followed by the name of a maintenance command\\.\r\nList.*unambiguous\\..*" \
|
|
"maint w/o args"
|
|
|
|
set timeout $oldtimeout
|
|
|
|
#============test help on maint commands
|
|
|
|
gdb_test "help maint" \
|
|
"Commands for use by GDB maintainers\\..*Includes commands to dump specific internal GDB structures in.*a human readable form, to cause GDB to deliberately dump core,.*to test internal functions such as the C../ObjC demangler, etc\\..*List of maintenance subcommands:.*maintenance info.*maintenance internal-error.*maintenance print.*maintenance set.*maintenance show.*Type.*help maintenance.*followed by maintenance subcommand name for full documentation\\..*Command name abbreviations are allowed if unambiguous\\..*"
|
|
|
|
gdb_test "help maint info" \
|
|
"Commands for showing internal info about the program being debugged.*unambiguous\\..*"
|
|
|
|
test_prefix_command_help {"maint print" "maintenance print"} {
|
|
"Maintenance command for printing GDB internal state\\.\[\r\n\]+"
|
|
}
|
|
|
|
test_prefix_command_help {"maint" "maintenance"} {
|
|
"Commands for use by GDB maintainers\\.\[\r\n\]+"
|
|
"Includes commands to dump specific internal GDB structures in\[\r\n\]+"
|
|
"a human readable form, to cause GDB to deliberately dump core,\[\r\n\]+"
|
|
"to test internal functions such as the C\\+\\+/ObjC demangler, etc\\.\[\r\n\]+"
|
|
}
|
|
|
|
#set oldtimeout $timeout
|
|
#set timeout [expr $timeout + 300]
|
|
|
|
gdb_test_multiple "maint dump-me" "maint dump-me" {
|
|
-re "Should GDB dump core.*\\(y or n\\) $" {
|
|
gdb_test "n" ".*" "maint dump-me"
|
|
}
|
|
-re "Undefined maintenance command: .*$gdb_prompt $" {
|
|
# Command 'maint dump-me' is registered on non-win32 host.
|
|
unsupported "maint dump-me"
|
|
}
|
|
}
|
|
|
|
send_gdb "maint internal-error\n"
|
|
gdb_expect {
|
|
-re "A problem internal to GDB has been detected" {
|
|
pass "maint internal-error"
|
|
if [gdb_internal_error_resync] {
|
|
pass "internal-error resync"
|
|
} else {
|
|
fail "internal-error resync"
|
|
}
|
|
}
|
|
-re ".*$gdb_prompt $" {
|
|
fail "maint internal-error"
|
|
untested "internal-error resync"
|
|
}
|
|
timeout {
|
|
fail "maint internal-error (timeout)"
|
|
untested "internal-error resync"
|
|
}
|
|
}
|
|
|
|
#set timeout $oldtimeout
|
|
|
|
|
|
gdb_exit
|
|
return 0
|