# Copyright 1998-2019 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 . # This file was written by Elena Zannoni (ezannoni@cygnus.com) # this file tests maintenance commands and help on those. # source file used is break.c #maintenance check-psymtabs -- Check consistency of psymtabs vs symtabs #maintenance check-symtabs -- Check consistency of symtabs #maintenance expand-symtabs -- Expand symtabs matching a file regexp #maintenance set -- Set GDB internal variables used by the GDB maintainer #maintenance show -- Show GDB internal variables used by the GDB maintainer #maintenance dump-me -- Get fatal error; make debugger dump its core #maintenance print -- Maintenance command for printing GDB internal state #maintenance info -- Commands for showing internal info about the program being debugged #maintenance internal-error -- Give GDB an internal error. # #maintenance print dummy-frames -- Print the dummy frame stack #maintenance print statistics -- Print statistics about internal gdb state #maintenance print objfiles -- Print dump of current object file definitions #maintenance print psymbols -- Print dump of current partial symbol definitions #maintenance print msymbols -- Print dump of current minimal symbol definitions #maintenance print symbols -- Print dump of current symbol definitions #maintenance print type -- Print a type chain for a given symbol #maintenance print unwind -- Print unwind table entry at given address # # #maintenance info sections -- List the BFD sections of the exec and core files #maintenance info breakpoints -- Status of all breakpoints # standard_testfile break.c break1.c if {[prepare_for_testing "failed to prepare" $testfile \ [list $srcfile $srcfile2] {debug nowarnings}]} { return -1 } # The commands we test here produce many lines of output; disable "press # to continue" prompts. gdb_test_no_output "set height 0" # Tests that require that no program is running gdb_file_cmd ${binfile} # Test for a regression where this command would internal-error if the # program wasn't running. If there's a lot of registers then this # might overflow expect's buffers, so process the output line at a # time. set saw_registers 0 set saw_headers 0 set test "maint print registers" gdb_test_multiple $test $test { -re "\[^\r\n\]+Name\[^\r\n\]+Nr\[^\r\n\]+Rel\[^\r\n\]+Offset\[^\r\n\]+Size\[^\r\n\]+Type\[^\r\n\]+\r\n" { set saw_headers 1 exp_continue } -re "^\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\r\n" { set saw_registers 1 exp_continue } -re "^\\*\[0-9\]+\[^\r\n\]+\r\n" { exp_continue } -re "$gdb_prompt $" { gdb_assert { $saw_registers && $saw_headers } $test } } # Test "mt expand-symtabs" here as it's easier to verify before we # run the program. gdb_test_no_output "mt set per on" "mt set per on for expand-symtabs" gdb_test_multiple "mt expand-symtabs $subdir/break\[.\]c$" \ "mt expand-symtabs" { -re "#compunits: (1|2) \\(\[+\](0|1|2)\\),.*$gdb_prompt $" { # This should expand at most two primary symtabs. # "Normally" it will not expand any, because the symtab # holding "main" will already have been expanded, but if the # file is compiled with -fdebug-types-section then a second primary # symtab for break.c will be created for any types. pass "mt expand-symtabs" } } gdb_test "mt set per off" ".*" "mt set per off for expand-symtabs" # Tests that can or should be done with a running program gdb_load ${binfile} if ![runto_main] then { perror "tests suppressed" } # If we're using .gdb_index or .debug_names there will be no psymtabs. set have_gdb_index 0 gdb_test_multiple "maint info sections .gdb_index .debug_names" "check for .gdb_index" { -re ": \\.gdb_index .*\r\n$gdb_prompt $" { set have_gdb_index 1 } -re ": \\.debug_names .*\r\n$gdb_prompt $" { set have_gdb_index 1 } -re ".*$gdb_prompt $" { ;# Nothing to do, present to avoid a FAIL. } } # There also won't be any psymtabs if we read the index from the index cache. # We can detect this by looking if the index-cache is enabled and if the number # of cache misses is 0. set index_cache_misses -1 gdb_test_multiple "show index-cache stats" "check index cache stats" { -re ".*Cache misses \\(this session\\): (\\d+)\r\n.*$gdb_prompt $" { set index_cache_misses $expect_out(1,string) } } set using_index_cache 0 gdb_test_multiple "show index-cache" "check index cache status" { -re ".*is currently disabled.\r\n$gdb_prompt $" { set using_index_cache 0 } -re ".*is currently enabled.\r\n$gdb_prompt $" { set using_index_cache 1 } } if { $index_cache_misses == 0 && $using_index_cache } { set have_gdb_index 1 } # # this command does not produce any output # unless there is some problem with the symtabs and psymtabs # so that branch will really never be covered in this tests here!! # # guo: on linux this command output is huge. for some reason splitting up # the regexp checks works. # send_gdb "maint check-psymtabs\n" gdb_expect { -re "^maint check-psymtabs" { gdb_expect { -re "$gdb_prompt $" { pass "maint check-psymtabs" } timeout { fail "(timeout) maint check-psymtabs" } } } -re ".*$gdb_prompt $" { fail "maint check-psymtabs" } timeout { fail "(timeout) maint check-psymtabs" } } # This command does not produce any output unless there is some problem # with the symtabs, so that branch will really never be covered in the # tests here!! gdb_test_no_output "maint check-symtabs" # Test per-command stats. gdb_test_no_output "maint set per-command on" set decimal "\[0-9\]+" set time_fmt "${decimal}-${decimal}-${decimal} ${decimal}:${decimal}:${decimal}\\.${decimal}" gdb_test "pwd" \ "${time_fmt} - command started\r\n.*\r\n${time_fmt} - command finished\r\nCommand execution time: \[0-9.\]+ \\(cpu\\), \[0-9.\]+ \\(wall\\)\[\r\n\]+Space used: $decimal \\(\\+$decimal for this command\\)\[\r\n\]+#symtabs: $decimal \\(\\+$decimal\\), #compunits: $decimal \\(\\+$decimal\\), #blocks: $decimal \\(\\+$decimal\\)" gdb_test "maint set per-command off" \ "${time_fmt} - command started" # The timeout value is raised, because printing all the symbols and # statistical information about Cygwin and Windows libraries takes a lot # of time. if [istarget "*-*-cygwin*"] { set oldtimeout $timeout set timeout [expr $timeout + 500] } send_gdb "maint print statistics\n" gdb_expect { -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: $decimal\r\n" { gdb_expect { -re "$gdb_prompt $" { pass "maint print statistics" } timeout { fail "(timeout) maint print statistics" } } } -re ".*$gdb_prompt $" { fail "maint print statistics" } timeout { fail "(timeout) maint print statistics" } } # There aren't any ... gdb_test_no_output "maint print dummy-frames" send_gdb "maint print objfiles\n" # To avoid timeouts, we avoid expects with many .* patterns that match # many lines. Instead, we keep track of which milestones we've seen # in the output, and stop when we've seen all of them. set header 0 set psymtabs 0 set symtabs 0 set keep_looking 1 while {$keep_looking} { gdb_expect { -re "\r\n" { set output $expect_out(buffer) if {[regexp ".*Object file.*maint($EXEEXT)?: Objfile at ${hex}" $output]} { set header 1 } if {[regexp ".*Psymtabs:\[\r\t \]+\n" $output]} { set psymtabs 1 } if {[regexp ".*Symtabs:\[\r\t \]+\n" $output]} { set symtabs 1 } } -re ".*$gdb_prompt $" { set keep_looking 0 } timeout { fail "(timeout) maint print objfiles" set keep_looking 0 } } } proc maint_pass_if {val name} { if $val { pass $name } else { fail $name } } maint_pass_if $header "maint print objfiles: header" if { ! $have_gdb_index } { maint_pass_if $psymtabs "maint print objfiles: psymtabs" } maint_pass_if $symtabs "maint print objfiles: symtabs" if { ! $have_gdb_index } { set psymbols_output [standard_output_file psymbols_output] set psymbols_output_re [string_to_regexp $psymbols_output] set test_list [list \ "maint print psymbols -source" \ "maint print psymbols -source ${srcdir}/${subdir}/${srcfile} $psymbols_output" \ "maint print psymbols -pc" \ "maint print psymbols -pc main $psymbols_output"] foreach { test_name command } $test_list { send_gdb "$command\n" gdb_expect { -re "^maint print psymbols \[^\n\]*\r\n$gdb_prompt $" { send_gdb "shell ls $psymbols_output\n" gdb_expect { -re "$psymbols_output_re\r\n$gdb_prompt $" { # We want this grep to be as specific as possible, # so it's less likely to match symbol file names in # psymbols_output. Yes, this actually happened; # poor expect got tons of output, and timed out # trying to match it. --- Jim Blandy send_gdb "shell grep 'main.*function' $psymbols_output\n" gdb_expect { -re ".main., function, $hex.*$gdb_prompt $" { pass "$test_name 1" } -re ".*main. .., function, $hex.*$gdb_prompt $" { pass "$test_name 2" } -re ".*$gdb_prompt $" { fail "$test_name" } timeout { fail "$test_name (timeout)" } } gdb_test "shell rm -f $psymbols_output" ".*" \ "${test_name}: shell rm -f psymbols_output" } -re ".*$gdb_prompt $" { fail "$test_name" } timeout { fail "$test_name (timeout)" } } } -re ".*$gdb_prompt $" { fail "$test_name" } timeout { fail "$test_name (timeout)" } } } } set msymbols_output [standard_output_file msymbols_output] set msymbols_output_re [string_to_regexp $msymbols_output] send_gdb "maint print msymbols -objfile ${binfile} $msymbols_output\n" gdb_expect { -re "^maint print msymbols \[^\n\]*\r\n$gdb_prompt $" { send_gdb "shell ls $msymbols_output\n" gdb_expect { -re "$msymbols_output_re\r\n$gdb_prompt $" { gdb_test "shell grep factorial $msymbols_output" \ "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*" \ "maint print msymbols, absolute pathname" gdb_test "shell rm -f $msymbols_output" ".*" \ "shell rm -f msymbols_output" } -re ".*$gdb_prompt $" { fail "maint print msymbols" } timeout { fail "maint print msymbols (timeout)" } } } -re ".*$gdb_prompt $" { fail "maint print msymbols" } timeout { fail "maint print msymbols (timeout)" } } # Check that maint print msymbols allows relative pathnames set mydir [pwd] gdb_test "cd [standard_output_file {}]" \ "Working directory .*\..*" \ "cd to objdir" gdb_test_multiple "maint print msymbols -objfile ${testfile} msymbols_output2" "maint print msymbols" { -re "^maint print msymbols \[^\n\]*\r\n$gdb_prompt $" { gdb_test_multiple "shell ls msymbols_output2" "maint print msymbols" { -re "msymbols_output2\r\n$gdb_prompt $" { gdb_test "shell grep factorial msymbols_output2" \ "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*" \ "maint print msymbols, relative pathname" gdb_test "shell rm -f msymbols_output2" ".*" } } } } gdb_test "cd ${mydir}" \ "Working directory [string_to_regexp ${mydir}]\..*" \ "cd to mydir" # Request symbols for one particular source file so that we don't try to # dump the symbol information for the entire C library - over 500MB nowadays # for GNU libc. set symbols_output [standard_output_file symbols_output] set symbols_output_re [string_to_regexp $symbols_output] set test_list [list \ "maint print symbols -source" \ "maint print symbols -source ${srcdir}/${subdir}/${srcfile} $symbols_output" \ "maint print symbols -pc" \ "maint print symbols -pc main $symbols_output"] foreach { test_name command } $test_list { send_gdb "$command\n" gdb_expect { -re "^maint print symbols \[^\n\]*\r\n$gdb_prompt $" { send_gdb "shell ls $symbols_output\n" gdb_expect { -re "$symbols_output_re\r\n$gdb_prompt $" { # See comments for `maint print psymbols'. send_gdb "shell grep 'main(.*block' $symbols_output\n" gdb_expect { -re "int main\\(int, char \\*\\*, char \\*\\*\\); block.*$gdb_prompt $" { pass "$test_name" } -re ".*$gdb_prompt $" { fail "$test_name" } timeout { fail "$test_name (timeout)" } } gdb_test "shell rm -f $symbols_output" ".*" \ "$test_name: shell rm -f symbols_output" } -re ".*$gdb_prompt $" { fail "$test_name" } timeout { fail "$test_name (timeout)" } } } -re ".*$gdb_prompt $" { fail "$test_name" } timeout { fail "$test_name (timeout)" } } } set msg "maint print type" gdb_test_multiple "maint print type argc" $msg { -re "type node $hex\r\nname .int. \\($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 $hex\r\n$gdb_prompt $" { pass $msg } } if [istarget "hppa*-*-11*"] { setup_xfail hppa*-*-*11* CLLbs14860 gdb_test_multiple "maint print unwind &main" "maint print unwind" { -re ".*unwind_table_entry \\($hex\\):\r\n\tregion_start = $hex
\r\n\tregion_end = $hex \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 $" { pass "maint print unwind" } -re ".*unwind_table_entry \\($hex\\):\r\n\tregion_start = $hex
\r\n\tregion_end = $hex \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 $" { xfail "maint print unwind" } } } set oldtimeout $timeout set timeout [expr $timeout + 300] # It'd be nice to check for every possible section. However, that's # problematic, since the relative ordering wanders from release to # release of the compilers. Instead, we'll just check for two # sections which appear to always come out in the same relative # order. (If that changes, then we should just check for one # section.) # # And by the way: This testpoint will break for PA64, where a.out's # are ELF files. # Standard GNU names. set text_section ".text" set data_section ".data" gdb_test_multiple "maint info sections" "maint info sections" { -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*ER_RO.*$gdb_prompt $" { # Looks like RealView which uses different section names. set text_section ER_RO set data_section ER_RW pass "maint info sections" } -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*neardata.*$gdb_prompt $" { # c6x doesn't have .data section. It has .neardata and .fardata section. set data_section ".neardata" pass "maint info sections" } -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*$gdb_prompt $" { pass "maint info sections" } } # Test for new option: maint info sections
# If you don't have a .text section, this will require tweaking. gdb_test_multiple "maint info sections $text_section" \ "maint info sections .text" { -re ".* \\.bss .*$gdb_prompt $" { fail "maint info sections .text" } -re ".* $data_section .*$gdb_prompt $" { fail "maint info sections .text" } -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" # Test that "main info line-table" w/o a file name shows the symtab for # $srcfile. set saw_srcfile 0 set test "maint info line-table w/o a file name" gdb_test_multiple "maint info line-table" $test { -re "symtab: \[^\n\r\]+${srcfile} \\(\\(struct symtab \\*\\) $hex\\)\r\nlinetable: \\(\\(struct linetable \\*\\) $hex\\):\r\nINDEX\[ \t\]+LINE\[ \t\]+ADDRESS" { set saw_srcfile 1 exp_continue } -re "symtab: \[^\n\r\]+ \\(\\(struct symtab \\*\\) $hex\\)\r\nlinetable: \\(\\(struct linetable \\*\\) $hex\\):\r\nINDEX\[ \t\]+LINE\[ \t\]+ADDRESS" { # Match each symtab to avoid overflowing expect's buffer. exp_continue } -re "$decimal\[ \t\]+$decimal\[ \t\]+$hex\r\n" { # Line table entries can be long too: # # INDEX LINE ADDRESS # 0 29 0x00000000004006f6 # 1 30 0x00000000004006fa # 2 31 0x0000000000400704 # 3 42 0x0000000000400706 # 4 43 0x0000000000400719 # 5 44 0x0000000000400722 # 6 45 0x0000000000400740 # (...) # 454 129 0x00007ffff7df1d28 # 455 0 0x00007ffff7df1d3f # # Match each line to avoid overflowing expect's buffer. exp_continue } -re "$gdb_prompt $" { gdb_assert $saw_srcfile $test } } gdb_test "maint info line-table ${srcfile}" \ "symtab: \[^\n\r\]+${srcfile}.*INDEX.*LINE.*ADDRESS.*" \ "maint info line-table with filename of current symtab" gdb_test_no_output "maint info line-table ${srcfile2}" \ "maint info line-table with filename of symtab that is not currently expanded" gdb_test_no_output "maint expand-symtabs" gdb_test "maint info line-table ${srcfile2}" \ "symtab: \[^\n\r\]+${srcfile2}.*INDEX.*LINE.*ADDRESS.*" \ "maint info line-table with filename of symtab that is not current" gdb_test_no_output "maint info line-table xxx.c" \ "maint info line-table with invalid filename" set timeout $oldtimeout # Just check that the DWARF unwinders control flag is visible. gdb_test "maint show dwarf unwinders" \ "The DWARF stack unwinders are currently (on|off)\\." #============test help on maint commands test_prefix_command_help {"maint info" "maintenance info"} { "Commands for showing internal info about the program being debugged\\.\[\r\n\]+" } 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, 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 # Test that the commands work without an argument. For this test, we # don't need an inferior loaded/running. See PR gdb/21164. gdb_exit gdb_start gdb_test_no_output "maint print symbols" gdb_test_no_output "maint print msymbols" gdb_test_no_output "maint print psymbols" gdb_exit return 0