old-cross-binutils/gdb/testsuite/gdb.base/maint.exp
Doug Evans 43f3e411c4 Split struct symtab into two: struct symtab and compunit_symtab.
Currently "symtabs" in gdb are stored as a single linked list of
struct symtab that contains both symbol symtabs (the blockvectors)
and file symtabs (the linetables).

This has led to confusion, bugs, and performance issues.

This patch is conceptually very simple: split struct symtab into
two pieces: one part containing things common across the entire
compilation unit, and one part containing things specific to each
source file.

Example.
For the case of a program built out of these files:

foo.c
  foo1.h
  foo2.h
bar.c
  foo1.h
  bar.h

Today we have a single list of struct symtabs:

objfile -> foo.c -> foo1.h -> foo2.h -> bar.c -> foo1.h -> bar.h -> NULL

where "->" means the "next" pointer in struct symtab.

With this patch, that turns into:

objfile -> foo.c(cu) -> bar.c(cu) -> NULL
            |            |
            v            v
           foo.c        bar.c
            |            |
            v            v
           foo1.h       foo1.h
            |            |
            v            v
           foo2.h       bar.h
            |            |
            v            v
           NULL         NULL

where "foo.c(cu)" and "bar.c(cu)" are struct compunit_symtab objects,
and the files foo.c, etc. are struct symtab objects.

So now, for example, when we want to iterate over all blockvectors
we can now just iterate over the compunit_symtab list.

Plus a lot of the data that was either unused or replicated for each
symtab in a compilation unit now lives in struct compunit_symtab.
E.g., the objfile pointer, the producer string, etc.
I thought of moving "language" out of struct symtab but there is
logic to try to compute the language based on previously seen files,
and I think that's best left as is for now.
With my standard monster benchmark with -readnow (which I can't actually
do, but based on my calculations), whereas today the list requires
77MB to store all the struct symtabs, it now only requires 37MB.
A modest space savings given the gigabytes needed for all the debug info,
etc.  Still, it's nice.  Plus, whereas today we create a copy of dirname
for each source file symtab in a compilation unit, we now only create one
for the compunit.

So this patch is basically just a data structure reorg,
I don't expect significant performance improvements from it.

Notes:

1) A followup patch can do a similar split for struct partial_symtab.
I have left that until after I get the changes I want in to
better utilize .gdb_index (it may affect how we do partial syms).

2) Another followup patch *could* rename struct symtab.
The term "symtab" is ambiguous and has been a source of confusion.
In this patch I'm leaving it alone, calling it the "historical" name
of "filetabs", which is what they are now: just the file-name + line-table.

gdb/ChangeLog:

	Split struct symtab into two: struct symtab and compunit_symtab.
	* amd64-tdep.c (amd64_skip_xmm_prologue): Fetch producer from compunit.
	* block.c (blockvector_for_pc_sect): Change "struct symtab *" argument
	to "struct compunit_symtab *".  All callers updated.
	(set_block_compunit_symtab): Renamed from set_block_symtab.  Change
	"struct symtab *" argument to "struct compunit_symtab *".
	All callers updated.
	(get_block_compunit_symtab): Renamed from get_block_symtab.  Change
	result to "struct compunit_symtab *".  All callers updated.
	(find_iterator_compunit_symtab): Renamed from find_iterator_symtab.
	Change result to "struct compunit_symtab *".  All callers updated.
	* block.h (struct global_block) <compunit_symtab>: Renamed from symtab.
	hange type to "struct compunit_symtab *".  All uses updated.
	(struct block_iterator) <d.compunit_symtab>: Renamed from "d.symtab".
	Change type to "struct compunit_symtab *".  All uses updated.
	* buildsym.c (struct buildsym_compunit): New struct.
	(subfiles, buildsym_compdir, buildsym_objfile, main_subfile): Delete.
	(buildsym_compunit): New static global.
	(finish_block_internal): Update to fetch objfile from
	buildsym_compunit.
	(make_blockvector): Delete objfile argument.
	(start_subfile): Rewrite to use buildsym_compunit.  Don't initialize
	debugformat, producer.
	(start_buildsym_compunit): New function.
	(free_buildsym_compunit): Renamed from free_subfiles_list.
	All callers updated.
	(patch_subfile_names): Rewrite to use buildsym_compunit.
	(get_compunit_symtab): New function.
	(get_macro_table): Delete argument comp_dir.  All callers updated.
	(start_symtab): Change result to "struct compunit_symtab *".
	All callers updated.  Create the subfile of the main source file.
	(watch_main_source_file_lossage): Rewrite to use buildsym_compunit.
	(reset_symtab_globals): Update.
	(end_symtab_get_static_block): Update to use buildsym_compunit.
	(end_symtab_without_blockvector): Rewrite.
	(end_symtab_with_blockvector): Change result to
	"struct compunit_symtab *".  All callers updated.
	Update to use buildsym_compunit.  Don't set symtab->dirname,
	instead set it in the compunit.
	Explicitly make sure main symtab is first in its list.
	Set debugformat, producer, blockvector, block_line_section, and
	macrotable in the compunit.
	(end_symtab_from_static_block): Change result to
	"struct compunit_symtab *".  All callers updated.
	(end_symtab, end_expandable_symtab): Ditto.
	(set_missing_symtab): Change symtab argument to
	"struct compunit_symtab *".  All callers updated.
	(augment_type_symtab): Ditto.
	(record_debugformat): Update to use buildsym_compunit.
	(record_producer): Update to use buildsym_compunit.
	* buildsym.h (struct subfile) <dirname>: Delete.
	<producer, debugformat>: Delete.
	<buildsym_compunit>: New member.
	(get_compunit_symtab): Declare.
	* dwarf2read.c (struct type_unit_group) <compunit_symtab>: Renamed
	from primary_symtab.  Change type to "struct compunit_symtab *".
	All uses updated.
	(dwarf2_start_symtab): Change result to "struct compunit_symtab *".
	All callers updated.
	(dwarf_decode_macros): Delete comp_dir argument.  All callers updated.
	(struct dwarf2_per_cu_quick_data) <compunit_symtab>: Renamed from
	symtab.  Change type to "struct compunit_symtab *".  All uses updated.
	(dw2_instantiate_symtab): Change result to "struct compunit_symtab *".
	All callers updated.
	(dw2_find_last_source_symtab): Ditto.
	(dw2_lookup_symbol): Ditto.
	(recursively_find_pc_sect_compunit_symtab): Renamed from
	recursively_find_pc_sect_symtab.  Change result to
	"struct compunit_symtab *".  All callers updated.
	(dw2_find_pc_sect_compunit_symtab): Renamed from
	dw2_find_pc_sect_symtab.  Change result to
	"struct compunit_symtab *".  All callers updated.
	(get_compunit_symtab): Renamed from get_symtab.  Change result to
	"struct compunit_symtab *".  All callers updated.
	(recursively_compute_inclusions): Change type of immediate_parent
	argument to "struct compunit_symtab *".  All callers updated.
	(compute_compunit_symtab_includes): Renamed from
	compute_symtab_includes.  All callers updated.  Rewrite to compute
	includes of compunit_symtabs and not symtabs.
	(process_full_comp_unit): Update to work with struct compunit_symtab.
	(process_full_type_unit): Ditto.
	(dwarf_decode_lines_1): Delete argument comp_dir.  All callers updated.
	(dwarf_decode_lines): Remove special case handling of main subfile.
	(macro_start_file): Delete argument comp_dir.  All callers updated.
	(dwarf_decode_macro_bytes): Ditto.
	* guile/scm-block.c (bkscm_print_block_syms_progress_smob): Update to
	use struct compunit_symtab.
	* i386-tdep.c (i386_skip_prologue): Fetch producer from compunit.
	* jit.c (finalize_symtab): Build compunit_symtab.
	* jv-lang.c (get_java_class_symtab): Change result to
	"struct compunit_symtab *".  All callers updated.
	* macroscope.c (sal_macro_scope): Fetch macro table from compunit.
	* macrotab.c (struct macro_table) <compunit_symtab>: Renamed from
	comp_dir.  Change type to "struct compunit_symtab *".
	All uses updated.
	(new_macro_table): Change comp_dir argument to cust,
	"struct compunit_symtab *".  All callers updated.
	* maint.c (struct cmd_stats) <nr_compunit_symtabs>: Renamed from
	nr_primary_symtabs.  All uses updated.
	(count_symtabs_and_blocks): Update to handle compunits.
	(report_command_stats): Update output, "primary symtabs" renamed to
	"compunits".
	* mdebugread.c (new_symtab): Change result to
	"struct compunit_symtab *".  All callers updated.
	(parse_procedure): Change type of search_symtab argument to
	"struct compunit_symtab *".  All callers updated.
	* objfiles.c (objfile_relocate1): Loop over blockvectors in a
	separate loop.
	* objfiles.h (struct objfile) <compunit_symtabs>: Renamed from
	symtabs.  Change type to "struct compunit_symtab *".  All uses updated.
	(ALL_OBJFILE_FILETABS): Renamed from ALL_OBJFILE_SYMTABS.
	All uses updated.
	(ALL_OBJFILE_COMPUNITS): Renamed from ALL_OBJFILE_PRIMARY_SYMTABS.
	All uses updated.
	(ALL_FILETABS): Renamed from ALL_SYMTABS.  All uses updated.
	(ALL_COMPUNITS): Renamed from ALL_PRIMARY_SYMTABS.  All uses updated.
	* psympriv.h (struct partial_symtab) <compunit_symtab>: Renamed from
	symtab.  Change type to "struct compunit_symtab *".  All uses updated.
	* psymtab.c (psymtab_to_symtab): Change result type to
	"struct compunit_symtab *".  All callers updated.
	(find_pc_sect_compunit_symtab_from_partial): Renamed from
	find_pc_sect_symtab_from_partial.  Change result type to
	"struct compunit_symtab *".  All callers updated.
	(lookup_symbol_aux_psymtabs): Change result type to
	"struct compunit_symtab *".  All callers updated.
	(find_last_source_symtab_from_partial): Ditto.
	* python/py-symtab.c (stpy_get_producer): Fetch producer from compunit.
	* source.c (forget_cached_source_info_for_objfile): Fetch debugformat
	and macro_table from compunit.
	* symfile-debug.c (debug_qf_find_last_source_symtab): Change result
	type to "struct compunit_symtab *".  All callers updated.
	(debug_qf_lookup_symbol): Ditto.
	(debug_qf_find_pc_sect_compunit_symtab): Renamed from
	debug_qf_find_pc_sect_symtab, change result type to
	"struct compunit_symtab *".  All callers updated.
	* symfile.c (allocate_symtab): Delete objfile argument.
	New argument cust.
	(allocate_compunit_symtab): New function.
	(add_compunit_symtab_to_objfile): New function.
	* symfile.h (struct quick_symbol_functions) <lookup_symbol>:
	Change result type to "struct compunit_symtab *".  All uses updated.
	<find_pc_sect_compunit_symtab>: Renamed from find_pc_sect_symtab.
	Change result type to "struct compunit_symtab *".  All uses updated.
	* symmisc.c (print_objfile_statistics): Compute blockvector count in
	separate loop.
	(dump_symtab_1): Update test for primary source symtab.
	(maintenance_info_symtabs): Update to handle compunit symtabs.
	(maintenance_check_symtabs): Ditto.
	* symtab.c (set_primary_symtab): Delete.
	(compunit_primary_filetab): New function.
	(compunit_language): New function.
	(iterate_over_some_symtabs): Change type of arguments "first",
	"after_last" to "struct compunit_symtab *".  All callers updated.
	Update to loop over symtabs in each compunit.
	(error_in_psymtab_expansion): Rename symtab argument to cust,
	and change type to "struct compunit_symtab *".  All callers updated.
	(find_pc_sect_compunit_symtab): Renamed from find_pc_sect_symtab.
	Change result type to "struct compunit_symtab *".  All callers updated.
	(find_pc_compunit_symtab): Renamed from find_pc_symtab.
	Change result type to "struct compunit_symtab *".  All callers updated.
	(find_pc_sect_line): Only loop over symtabs within selected compunit
	instead of all symtabs in the objfile.
	* symtab.h (struct symtab) <blockvector>: Moved to compunit_symtab.
	<compunit_symtab> New member.
	<block_line_section>: Moved to compunit_symtab.
	<locations_valid>: Ditto.
	<epilogue_unwind_valid>: Ditto.
	<macro_table>: Ditto.
	<dirname>: Ditto.
	<debugformat>: Ditto.
	<producer>: Ditto.
	<objfile>: Ditto.
	<call_site_htab>: Ditto.
	<includes>: Ditto.
	<user>: Ditto.
	<primary>: Delete
	(SYMTAB_COMPUNIT): New macro.
	(SYMTAB_BLOCKVECTOR): Update definition.
	(SYMTAB_OBJFILE): Update definition.
	(SYMTAB_DIRNAME): Update definition.
	(struct compunit_symtab): New type.  Common members among all source
	symtabs within a compilation unit moved here.  All uses updated.
	(COMPUNIT_OBJFILE): New macro.
	(COMPUNIT_FILETABS): New macro.
	(COMPUNIT_DEBUGFORMAT): New macro.
	(COMPUNIT_PRODUCER): New macro.
	(COMPUNIT_DIRNAME): New macro.
	(COMPUNIT_BLOCKVECTOR): New macro.
	(COMPUNIT_BLOCK_LINE_SECTION): New macro.
	(COMPUNIT_LOCATIONS_VALID): New macro.
	(COMPUNIT_EPILOGUE_UNWIND_VALID): New macro.
	(COMPUNIT_CALL_SITE_HTAB): New macro.
	(COMPUNIT_MACRO_TABLE): New macro.
	(ALL_COMPUNIT_FILETABS): New macro.
	(compunit_symtab_ptr): New typedef.
	(DEF_VEC_P (compunit_symtab_ptr)): New vector type.

gdb/testsuite/ChangeLog:

	* gdb.base/maint.exp: Update expected output.
2014-11-20 07:47:44 -08:00

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# Copyright 1998-2014 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/>.
# 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 demangle -- Demangle a C++ mangled name
#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 $testfile.exp $testfile \
[list $srcfile $srcfile2] {debug nowarnings}]} {
untested $testfile.exp
return -1
}
# The commands we test here produce many lines of output; disable "press
# <return> 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.
gdb_test "maint print registers" "Name.*Nr.*Rel.*Offset.*Size.*Type.*"
# 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 ${binfile}
if ![runto_main] then {
perror "tests suppressed"
}
# If we're using .gdb_index there will be no psymtabs.
set have_gdb_index 0
gdb_test_multiple "maint info sections .gdb_index" "check for .gdb_index" {
-re ": .gdb_index.*$gdb_prompt $" {
set have_gdb_index 1
}
-re ".*$gdb_prompt $" {
;# Nothing to do, present to avoid a FAIL.
}
}
#
# this command does not produce any output
# unless there is some problem with the symtabs and psymtabs
# so that branch will really never be covered in this tests here!!
#
# guo: on linux this command output is huge. for some reason splitting up
# the regexp checks works.
#
send_gdb "maint check-psymtabs\n"
gdb_expect {
-re "^maint check-psymtabs" {
gdb_expect {
-re "$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"
gdb_test "pwd" \
"Command 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_no_output "maint set per-command off"
gdb_test "maint demangle" \
"\"maintenance demangle\" takes an argument to demangle\\."
gdb_test "maint demangle main" "Can't demangle \"main\""
# 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"
gdb_test "maint print psymbols" \
"print-psymbols takes an output file name and optional symbol file name" \
"maint print psymbols w/o args"
if { ! $have_gdb_index } {
set psymbols_output [standard_output_file psymbols_output]
send_gdb "maint print psymbols $psymbols_output ${srcdir}/${subdir}/${srcfile}\n"
gdb_expect {
-re "^maint print psymbols $psymbols_output \[^\n\]*\r\n$gdb_prompt $" {
send_gdb "shell ls $psymbols_output\n"
gdb_expect {
-re "$psymbols_output\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 <jimb@cygnus.com>
send_gdb "shell grep 'main.*function' $psymbols_output\n"
gdb_expect {
-re ".main., function, $hex.*$gdb_prompt $" {
pass "maint print psymbols 1"
}
-re ".*main. .., function, $hex.*$gdb_prompt $" {
pass "maint print psymbols 2"
}
-re ".*$gdb_prompt $" { fail "maint print psymbols" }
timeout { fail "(timeout) maint print psymbols" }
}
gdb_test "shell rm -f $psymbols_output" ".*" \
"shell rm -f psymbols_output"
}
-re ".*$gdb_prompt $" { fail "maint print psymbols" }
timeout { fail "(timeout) maint print psymbols" }
}
}
-re ".*$gdb_prompt $" { fail "maint print psymbols" }
timeout { fail "(timeout) maint print psymbols" }
}
}
gdb_test "maint print msymbols" \
"print-msymbols takes an output file name and optional symbol file name" \
"maint print msymbols w/o args"
set msymbols_output [standard_output_file msymbols_output]
send_gdb "maint print msymbols $msymbols_output ${binfile}\n"
gdb_expect {
-re "^maint print msymbols $msymbols_output \[^\n\]*\r\n$gdb_prompt $" {
send_gdb "shell ls $msymbols_output\n"
gdb_expect {
-re "$msymbols_output\r\n$gdb_prompt $" {
send_gdb "shell grep factorial $msymbols_output\n"
gdb_expect {
-re "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*$gdb_prompt $" {
pass "maint print msymbols"
}
-re ".*$gdb_prompt $" { fail "maint print msymbols" }
timeout { fail "(timeout) maint print msymbols" }
}
gdb_test "shell rm -f $msymbols_output" ".*" \
"shell rm -f msymbols_output"
}
-re ".*$gdb_prompt $" { fail "maint print msymbols" }
timeout { fail "(timeout) maint print msymbols" }
}
}
-re ".*$gdb_prompt $" { fail "maint print msymbols" }
timeout { fail "(timeout) maint print msymbols" }
}
# 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 msymbols_output2 ${testfile}" "maint print msymbols" {
-re "^maint print msymbols msymbols_output2 \[^\n\]*\r\n$gdb_prompt $" {
gdb_test_multiple "shell ls msymbols_output2" "maint print msymbols" {
-re "msymbols_output2\r\n$gdb_prompt $" {
gdb_test_multiple "shell grep factorial msymbols_output2" "maint print msymbols" {
-re "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*$gdb_prompt $" {
pass "maint print msymbols"
}
-re ".*$gdb_prompt $" {
fail "maint print msymbols"
}
timeout {
fail "(timeout) maint print msymbols"
}
}
gdb_test "shell rm -f msymbols_output2" ".*" \
"shell rm -f msymbols_output2"
}
-re ".*$gdb_prompt $" {
fail "maint print msymbols"
}
timeout {
fail "(timeout) maint print msymbols"
}
}
}
-re ".*$gdb_prompt $" {
fail "maint print msymbols"
}
timeout {
fail "(timeout) maint print msymbols"
}
}
gdb_test "cd ${mydir}" \
"Working directory [string_to_regexp ${mydir}]\..*" \
"cd to mydir"
gdb_test "maint print symbols" \
"Arguments missing: an output file name and an optional symbol file name" \
"maint print symbols w/o args"
# 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]
send_gdb "maint print symbols $symbols_output ${srcdir}/${subdir}/${srcfile}\n"
gdb_expect {
-re "^maint print symbols $symbols_output \[^\n\]*\r\n$gdb_prompt $" {
send_gdb "shell ls $symbols_output\n"
gdb_expect {
-re "$symbols_output\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 $" {
pass "maint print symbols"
}
-re ".*$gdb_prompt $" { fail "maint print symbols" }
timeout { fail "(timeout) maint print symbols" }
}
gdb_test "shell rm -f $symbols_output" ".*" \
"shell rm -f symbols_output"
}
-re ".*$gdb_prompt $" { fail "maint print symbols" }
timeout { fail "(timeout) maint print symbols" }
}
}
-re ".*$gdb_prompt $" { fail "maint print symbols" }
timeout { fail "(timeout) maint print symbols" }
}
set msg "maint print type"
gdb_test_multiple "maint print type argc" $msg {
-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 $" {
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 <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 $" {
pass "maint print unwind"
}
-re ".*unwind_table_entry \\($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 $" {
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 <section name>
# 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"
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