Commit Graph

100360 Commits

Author SHA1 Message Date
Simon Marchi 58df732b21 Move gdb/warning.m4 to gdbsupport
This file is used by gdbsupport, gdbserver and gdb, so I think it
belongs in gdbsupport.  Move it there and update the references the
various acinclude.m4 files.

gdbsupport/ChangeLog:

	* warning.m4: Move here, from gdb/warning.m4.
	* acinclude.m4: Update warning.m4 path.
	* Makefile.in: Re-generate.

gdbserver/ChangeLog:

	* acinclude.m4: Update warning.m4 path.

gdb/ChangeLog:

	* acinclude: Update warning.m4 path.
	* warning.m4: Move to gdbsupport.
2020-02-11 10:51:43 -05:00
Simon Marchi 629c296280 gdbsupport: use AM_GDB_WARNINGS
Since gdbsupport has been given its own build system, it is no longer
compiled with the warning flags specified in gdb/warning.m4.

This patch makes it use AM_GDB_WARNINGS.

gdbsupport/ChangeLog:

	* acinclude.m4: Include ../gdb/warning.m4.
	* configure.ac: Use AM_GDB_WARNINGS.
	* Makefile.am: Set AM_CFLAGS to WARN_CFLAGS and WERROR_CFLAGS.
	* Makefile.in: Re-generate.
	* configure: Re-generate.
2020-02-11 10:46:23 -05:00
Tom Tromey da5bd37ebc Remove some ui_file_* functions
This removes ui_file_isatty, ui_file_read, ui_file_write,
ui_file_write_async_safe, ui_file_flush, and ui_file_puts, replacing
them with calls to the appropriate method instead.

gdb/ChangeLog
2020-02-11  Tom Tromey  <tromey@adacore.com>

	* remote.c (remote_console_output): Update.
	* printcmd.c (printf_command): Update.
	* event-loop.c (gdb_wait_for_event): Update.
	* linux-nat.c (sigchld_handler): Update.
	* remote-sim.c (gdb_os_write_stdout): Update.
	(gdb_os_flush_stdout): Update.
	(gdb_os_flush_stderr): Update.
	(gdb_os_write_stderr): Update.
	* exceptions.c (print_exception): Update.
	* remote-fileio.c (remote_fileio_func_read): Update.
	(remote_fileio_func_write): Update.
	* tui/tui.c (tui_enable): Update.
	* tui/tui-interp.c (tui_interp::init): Update.
	* utils.c (init_page_info): Update.
	(putchar_unfiltered, fputc_unfiltered): Update.
	(gdb_flush): Update.
	(emit_style_escape): Update.
	(flush_wrap_buffer, fputs_maybe_filtered): Update.
	* ui-file.c (ui_file_isatty, ui_file_read, ui_file_write)
	(ui_file_write_async_safe, ui_file_flush, ui_file_puts): Remove.
	(stderr_file::write): Update.
	(stderr_file::puts): Update.
	* ui-file.h (ui_file_isatty, ui_file_write)
	(ui_file_write_async_safe, ui_file_read, ui_file_flush)
	(ui_file_puts): Don't declare.

Change-Id: I3ca9b36e9107f6adbc41e014f5078b41d6bcec4d
2020-02-11 07:05:28 -07:00
Nick Clifton c675ec1e76 Fix building the bfd/elf32-msp430.c file on a 32-bit host.
* elf32-msp430.c (msp430_final_link_relocate): Always use longs
	for addresses in print statements.
	(msp430_elf_relax_delete_bytes): Likewise.
	(msp430_elf_relax_add_words): Likewise.
	(msp430_elf_relax_section): Likewise.
2020-02-11 12:38:41 +00:00
H.J. Lu 1d07a805c8 Clear plugin_data memory
Clear plugin_data memory since it may be uninitialized.

	* plugin.c (add_symbols): Clear plugin_data memory.
2020-02-11 04:27:27 -08:00
Jan Beulich 50128d0cab x86: drop ShortForm attribute
It is very simple to derive from other template properties, and hence
there's little point wasting storage for it.
2020-02-11 11:20:55 +01:00
Jan Beulich 1e05b5c489 x86: drop stray ShortForm attributes
This attribute is meaningless when there are no operands to encode.
2020-02-11 11:20:05 +01:00
Matthew Malcomson 1ed818b4dd [binutils][gas] Fix build failure with -std=c89
My previous patch introduced the use of a C99 feature.  C99 standard is
not required for gas, so this feature should be removed.

Committed as obvious.

gas/ChangeLog:

2020-02-11  Matthew Malcomson  <matthew.malcomson@arm.com>

	* config/tc-arm.c (vcx_handle_register_arguments): Remove `for`
	loop initial declaration.
2020-02-11 10:17:33 +00:00
Tom de Vries b2770d5e77 [gdb/testsuite] Fix UNRESOLVED in gdb.server/server-kill-python.exp
The test-case gdb.server/server-kill-python.exp runs fine by itself:
...
Running src/gdb/testsuite/gdb.server/server-kill-python.exp ...

                === gdb Summary ===

nr of expected passes            3
...

But if we run f.i. gdb.server/file-transfer.exp before it, we get instead:
...
Running src/gdb/testsuite/gdb.server/server-kill-python.exp ...
ERROR: GDB process no longer exists

                === gdb Summary ===

nr of expected passes            13
nr of unresolved testcases       1
...

We can see the origin of the problem here:
...
spawn gdbserver --once localhost:2347 \
  build/gdb/testsuite/outputs/gdb.server/file-transfer/file-transfer \
  build/gdb/testsuite/outputs/gdb.server/server-kill-python/server-kill-python^M
Process build/gdb/testsuite/outputs/gdb.server/file-transfer/file-transfer
  \ created; pid = 9464^M
Listening on port 2347^M
...

The spawn of the gdbserver for the server-kill-python test-case gets as
executable argument the file-transfer binary.

This is caused by proc gdbserver_spawn attempting to load the exec file in
$file_last_loaded.  This is something that is meant to load the same exec in
the gdbserver that was earlier loaded into gdb.

In this test-case however, nothing has been loaded into gdb by the test-case,
and consequently we load the file that was loaded into gdb in the previous
test-case.

Fix this by unsetting $file_last_loaded in gdb_init.

Build and reg-tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-02-11  Tom de Vries  <tdevries@suse.de>

	PR testsuite/25488
	* lib/gdb.exp (gdb_init): Unset $file_last_loaded.

Change-Id: Ic385e08cbd34cbf85518720cf5695b4ff6619f4b
2020-02-11 07:08:33 +01:00
H.J. Lu 0aa99dcd70 Use GCC LTO wrapper to get real symbols from LTO IR objects
GCC LTO wrapper is needed to extract real symbols from LTO IR objects.
This patch does the following:

1. Set up GCC LTO wrapper for each LTO IR object.
2. Run GCC LTO wrapper to get the real object.
3. Extract symbol info from the real object.
4. Cleanup afterwards.

bfd/

	PR binutils/25355
	* configure.ac (HAVE_EXECUTABLE_SUFFIX): New AC_DEFINE.
	(EXECUTABLE_SUFFIX): Likewise.
	* config.in: Regenerated.
	* configure: Likewise.
	* plugin.c (bfd_plugin_close_and_cleanup): Removed.
	(plugin_list_entry): Add all_symbols_read, cleanup_handler,
	gcc, lto_wrapper, resolution_file, resolution_option, gcc_env,
	real_bfd, real_nsyms, real_syms, lto_nsyms and lto_syms.
	(get_lto_wrapper): New.
	(setup_lto_wrapper_env): Likewise.
	(current_plugin): Likewise.
	(register_all_symbols_read): Likewise.
	(register_cleanup): Likewise.
	(get_symbols): Likewise.
	(add_input_file): Likewise.
	(bfd_plugin_close_and_cleanup): Likewise.
	(claim_file): Removed.
	(register_claim_file): Set current_plugin->claim_file.
	(add_symbols): Make a copy of LTO symbols.  Set lto_nsyms and
	lto_syms in current_plugin.
	(try_claim): Use current_plugin->claim_file.  Call LTO plugin
	all_symbols_read handler.  Copy real symbols to plugin_data.
	Call LTO plugin cleanup handler.  Clean up for LTO wrapper.
	(try_load_plugin): Don't reuse the previous plugin for LTO
	wrapper.  Set up GCC LTO wrapper if possible.  Don't set
	plugin_list_iter->claim_file.
	(bfd_plugin_canonicalize_symtab): Use real LTO symbols if
	possible.
	* plugin.h (plugin_data_struct): Add real_bfd, real_nsyms and
	real_syms.

ld/

	PR binutils/25355
	* testsuite/ld-plugin/lto.exp: Run PR binutils/25355 test.
	* testsuite/ld-plugin/pr25355.c: New file.
	* testsuite/ld-plugin/pr25355.d: Likewise.
	* testsuite/lib/ld-lib.exp (run_cc_link_tests): Support compile
	only dump.
2020-02-10 19:01:53 -08:00
Alan Modra 2f5dd314d6 Ensure *valuep always written by extract_normal return
* cgen-ibld.in (extract_normal): Set *valuep on all return paths.
	* bpf-ibld.c, * epiphany-ibld.c, * fr30-ibld.c, * frv-ibld.c,
	* ip2k-ibld.c, * iq2000-ibld.c, * lm32-ibld.c, * m32c-ibld.c,
	* m32r-ibld.c, * mep-ibld.c, * mt-ibld.c, * or1k-ibld.c,
	* xc16x-ibld.c, * xstormy16-ibld.c: Regenerate.
2020-02-11 12:14:01 +10:30
GDB Administrator 212a0131eb Automatic date update in version.in 2020-02-11 00:00:25 +00:00
Jozef Lawrynowicz ac4280dad0 MSP430: Enable relaxation of jump instructions to hard-coded pcrel offsets
This patch fixes execution failures which occur when the BR in a
sequence such as:
  J<cond> 1f
  BR
  1:
is relaxed to a JMP, and the pc-relative offset for the destination of
the J<cond> instruction is hard-coded to be 2 words ahead of the
instruction.
The hard-coded offset will cause execution to jump 1 word ahead of where
it should actually go.

Instead we now detect the hard-coded offset is one we inserted earlier,
and invert the condition, allowing us to remove the BR entirely.

bfd/ChangeLog:

2020-02-10  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* elf32-msp430.c (msp430_elf_relax_section): Before relaxing a branch,
	check if previous instruction matches a conditional jump inserted
	earlier. Invert conditional jump and delete branch in this case.
2020-02-10 20:42:36 +00:00
Jozef Lawrynowicz 8d6cb116f4 MSP430: Enable relaxation of relocs in JMP instructions
This patch fixes relocation overflows caused by an inability to relax
unconditional JMP instructions to BR instructions.

bfd/ChangeLog:

2020-02-10  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* elf32-msp430.c (msp430_elf_relax_add_two_words): Rename to
	msp430_elf_relax_add_words. Support insertion of either one or two
	words.
	(msp430_elf_relax_section): Catch opcode of 0x3c00 when relocation
	needs to be grown. Handle insertion of branch instruction to replace
	jump.
2020-02-10 20:35:52 +00:00
Jozef Lawrynowicz d60f54486a MSP430: Add printf statements to assist with debugging during relaxation
bfd/ChangeLog:

2020-02-10  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* elf32-msp430.c (msp430_final_link_relocate): Add printf statements for
	debugging relocations.
	(msp430_elf_relax_delete_bytes): Likewise.
	(msp430_elf_relax_add_two_words): Likewise.
	(msp430_elf_relax_section): Likewise.
2020-02-10 20:29:40 +00:00
Matthew Malcomson 5aae9ae97f [binutils][arm] Implement Custom Datapath Extensions for MVE
Here we implement the custom datapath extensions for MVE.

This required the following changes:

- Adding a new register argument type (that takes either an MVE vector or
  a Neon S or D register).
- Adding two new immediate operands types (0-127 and 0-4095).
- Using the Neon type machinery to distinguish between instruction
  types.  This required the introduction of new neon shapes to account
  for the coprocessor operands to these instructions.
- Adding a new disassembly character to `print_insn_cde` to handle the
  new register types.

Specification can be found at
https://developer.arm.com/docs/ddi0607/latest

Successfully regression tested on arm-none-eabi, and arm-wince-pe.

gas/ChangeLog:

2020-02-10  Matthew Malcomson  <matthew.malcomson@arm.com>

	* config/tc-arm.c (NEON_MAX_TYPE_ELS): Increment to account for
	instructions that can have 5 arguments.
	(enum operand_parse_code): Add new operands.
	(parse_operands): Account for new operands.
	(S5): New macro.
	(enum neon_shape_el): Introduce P suffixes for coprocessor.
	(neon_select_shape): Account for P suffix.
	(LOW1): Move macro to global position.
	(HI4): Move macro to global position.
	(vcx_assign_vec_d): New.
	(vcx_assign_vec_m): New.
	(vcx_assign_vec_n): New.
	(enum vcx_reg_type): New.
	(vcx_get_reg_type): New.
	(vcx_size_pos): New.
	(vcx_vec_pos): New.
	(vcx_handle_shape): New.
	(vcx_ensure_register_in_range): New.
	(vcx_handle_register_arguments): New.
	(vcx_handle_insn_block): New.
	(vcx_handle_common_checks): New.
	(do_vcx1): New.
	(do_vcx2): New.
	(do_vcx3): New.
	* testsuite/gas/arm/cde-missing-fp.d: New test.
	* testsuite/gas/arm/cde-missing-fp.l: New test.
	* testsuite/gas/arm/cde-missing-mve.d: New test.
	* testsuite/gas/arm/cde-missing-mve.l: New test.
	* testsuite/gas/arm/cde-mve-or-neon.d: New test.
	* testsuite/gas/arm/cde-mve-or-neon.s: New test.
	* testsuite/gas/arm/cde-mve.s: New test.
	* testsuite/gas/arm/cde-warnings.l:
	* testsuite/gas/arm/cde-warnings.s:
	* testsuite/gas/arm/cde.d:
	* testsuite/gas/arm/cde.s:

opcodes/ChangeLog:

2020-02-10  Matthew Malcomson  <matthew.malcomson@arm.com>

	* arm-dis.c (print_insn_cde): Define 'V' parse character.
	(cde_opcodes): Add VCX* instructions.
2020-02-10 16:50:14 +00:00
Matthew Malcomson 4934a27c8c [binutils][arm] arm support for ARMv8.m Custom Datapath Extension
This patch is part of a series that adds support for the Armv8.m
ARMv8.m Custom Datapath Extension to binutils.

This patch introduces the Custom Instructions Class 1/2/3 (Single/
Dual, Accumulator/Non-accumulator varianats) to the arm backend.

The following Custom Instructions are added: cx1, cx1a,
cx1d, cx1da, cx2, cx2a, cx2d, cx2da, cx3, cx3a, cx3d, cx3da.

Specification can be found at
https://developer.arm.com/docs/ddi0607/latest

This patch distinguishes between enabling CDE for different coprocessor
numbers by defining multiple architecture flags.  This means that the
parsing of the architecture extension flags is kept entirely in the
existing code path.

We introduce a new IT block state to indicate the behaviour of these
instructions.  This new state allows being used in an IT block or
outside an IT block, but does not allow the instruction to be used
inside a VPT block.
We need this since the CX*A instruction versions can be used in IT
blocks, but they aren't to have the conditional suffixes on them.  Hence
we need to mark an instruction as allowed in either position.

We also need a new flag to objdump, in order to determine whether to
disassemble an instruction as CDE related or not.

Successfully regression tested on arm-none-eabi, and arm-wince-pe.

gas/ChangeLog:

2020-02-10  Stam Markianos-Wright  <stam.markianos-wright@arm.com>
	    Matthew Malcomson  <matthew.malcomson@arm.com>

	* config/tc-arm.c (arm_ext_cde*): New feature sets for each
	CDE coprocessor that can be enabled.
	(enum pred_instruction_type): New pred type.
	(BAD_NO_VPT): New error message.
	(BAD_CDE): New error message.
	(BAD_CDE_COPROC): New error message.
	(enum operand_parse_code): Add new immediate operands.
	(parse_operands): Account for new immediate operands.
	(check_cde_operand): New.
	(cde_coproc_enabled): New.
	(cde_coproc_pos): New.
	(cde_handle_coproc): New.
	(cxn_handle_predication): New.
	(do_custom_instruction_1): New.
	(do_custom_instruction_2): New.
	(do_custom_instruction_3): New.
	(do_cx1): New.
	(do_cx1a): New.
	(do_cx1d): New.
	(do_cx1da): New.
	(do_cx2): New.
	(do_cx2a): New.
	(do_cx2d): New.
	(do_cx2da): New.
	(do_cx3): New.
	(do_cx3a): New.
	(do_cx3d): New.
	(do_cx3da): New.
	(handle_pred_state): Define new IT block behaviour.
	(insns): Add newn CX*{,d}{,a} instructions.
	(CDE_EXTENSIONS,armv8m_main_ext_table,armv8_1m_main_ext_table):
	Define new cdecp extension strings.
	* doc/c-arm.texi: Document new cdecp extension arguments.
	* testsuite/gas/arm/cde-scalar.d: New test.
	* testsuite/gas/arm/cde-scalar.s: New test.
	* testsuite/gas/arm/cde-warnings.d: New test.
	* testsuite/gas/arm/cde-warnings.l: New test.
	* testsuite/gas/arm/cde-warnings.s: New test.
	* testsuite/gas/arm/cde.d: New test.
	* testsuite/gas/arm/cde.s: New test.

include/ChangeLog:

2020-02-10  Stam Markianos-Wright  <stam.markianos-wright@arm.com>
	    Matthew Malcomson  <matthew.malcomson@arm.com>

	* opcode/arm.h (ARM_EXT2_CDE): New extension macro.
	(ARM_EXT2_CDE0): New extension macro.
	(ARM_EXT2_CDE1): New extension macro.
	(ARM_EXT2_CDE2): New extension macro.
	(ARM_EXT2_CDE3): New extension macro.
	(ARM_EXT2_CDE4): New extension macro.
	(ARM_EXT2_CDE5): New extension macro.
	(ARM_EXT2_CDE6): New extension macro.
	(ARM_EXT2_CDE7): New extension macro.

opcodes/ChangeLog:

2020-02-10  Stam Markianos-Wright  <stam.markianos-wright@arm.com>
	    Matthew Malcomson  <matthew.malcomson@arm.com>

	* arm-dis.c (struct cdeopcode32): New.
	(CDE_OPCODE): New macro.
	(cde_opcodes): New disassembly table.
	(regnames): New option to table.
	(cde_coprocs): New global variable.
	(print_insn_cde): New
	(print_insn_thumb32): Use print_insn_cde.
	(parse_arm_disassembler_options): Parse coprocN args.
2020-02-10 16:50:14 +00:00
H.J. Lu 4b5aaf5f69 x86: Accept Intel64 only instruction by default
Commit d835a58baa disabled sysenter/sysenter in 64-bit mode by
default.  By default, assembler should accept common, Intel64 only
and AMD64 ISAs since there are no conflicts.

gas/

	PR gas/25516
	* config/tc-i386.c (intel64): Renamed to ...
	(isa64): This.
	(match_template): Accept Intel64 only instruction by default.
	(i386_displacement): Updated.
	(md_parse_option): Updated.
	* c-i386.texi: Update -mamd64/-mintel64 documentation.
	* testsuite/gas/i386/i386.exp: Run x86-64-sysenter.  Pass
	-mamd64 to x86-64-sysenter-amd.
	* testsuite/gas/i386/x86-64-sysenter.d: New file.

opcodes/

	PR gas/25516
	* i386-gen.c (opcode_modifiers): Replace AMD64 and Intel64
	with ISA64.
	* i386-opc.h (AMD64): Removed.
	(Intel64): Likewose.
	(AMD64): New.
	(INTEL64): Likewise.
	(INTEL64ONLY): Likewise.
	(i386_opcode_modifier): Replace amd64 and intel64 with isa64.
	* i386-opc.tbl (Amd64): New.
	(Intel64): Likewise.
	(Intel64Only): Likewise.
	Replace AMD64 with Amd64.  Update sysenter/sysenter with
	Cpu64 and Intel64Only.  Remove AMD64 from sysenter/sysenter.
	* i386-tbl.h: Regenerated.
2020-02-10 08:37:36 -08:00
Fangrui Song 3a5d12fbb4 Allow objcopy's --set-section-flags options to add or remove the SHF_EXCLUDE flag of ELF sections.
* objcopy.c (parse_flags): Handle "exclude".
	* doc/binutils.texi: Document the support.
2020-02-10 16:22:00 +00:00
Aaron Merey 46471187e4 More debuginfod tests fixes.
Start server before setting environment variable.
	Specify tmpdir as the location of the server's
	database.
	Check additional server metrics at start-up.
2020-02-10 15:24:57 +00:00
Aaron Merey 678d457fb7 Fix potential problem with binutils debuginfod tests.
* binutils/testsuite/binutils-all/debuginfod.exp:
	Replace set ::env with setenv.
2020-02-10 15:20:41 +00:00
Tom de Vries 85f0dd3ce8 [gdb] Fix -Wstrict-null-sentinel warnings
When passed in CXXFLAGS, -Wstrict-null-sentinel triggers twice in a
gdb/gdbserver build.

Fix the two occurrences.

Build and reg-tested on x86_64-linux.

gdb/ChangeLog:

2020-02-10  Tom de Vries  <tdevries@suse.de>

	* dwarf2/read.c (process_psymtab_comp_unit_reader): Cast concat NULL
	sentinel to char *.

gdbsupport/ChangeLog:

2020-02-10  Tom de Vries  <tdevries@suse.de>

	* environ.c (gdb_environ::set): Cast concat NULL sentinel to char *.
2020-02-10 15:13:42 +01:00
Tom de Vries 44f6938ead [gdb/testsuite] Skip multi-target.exp without gdbserver
Pre-commit 919adfe840 "Move gdbserver to top level", if we build gdb with
--disable-gdbserver, and run test-case gdb.multi/multi-target.exp, we run
into:
...
(gdb) PASS: gdb.multi/multi-target.exp: continue: non-stop=off: set remote-exec file in inferior 2
spawn of  --once --multi localhost:2346 failed
ERROR: tcl error sourcing /data/gdb_versions/devel/src/gdb/testsuite/gdb.multi/multi-target.exp.
ERROR: Timeout waiting for gdbserver response.
...

Fix this by using skip_gdbserver_tests in multi-target.exp.

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-02-10  Tom de Vries  <tdevries@suse.de>

	* gdb.multi/multi-target.exp: Skip if skip_gdbserver_tests.
2020-02-10 13:22:09 +01:00
Maciej W. Rozycki 5f0e2eb79e GDB/testsuite: Fix a catastrophic step-over-no-symbols.exp failure
Fix a catastrophic failure in gdb.base/step-over-no-symbols.exp where
remote target communication issues cause the value of the PC retrieved
to be empty:

(gdb) FAIL: gdb.base/step-over-no-symbols.exp: displaced=off: stepi
p /x $pc
Remote 'g' packet reply is too long (expected 264 bytes, got 532 bytes): 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
(gdb) FAIL: gdb.base/step-over-no-symbols.exp: displaced=off: get after PC
ERROR: tcl error sourcing .../gdb/testsuite/gdb.base/step-over-no-symbols.exp.
ERROR: missing operand at _@_
in expression " _@_!= "
    (parsing expression " != ")
    invoked from within
"expr $before_addr != $after_addr"
    ("uplevel" body line 1)
    invoked from within
"uplevel 1 expr $condition"
    (procedure "gdb_assert" line 6)
    invoked from within
"gdb_assert {$before_addr != $after_addr} "advanced""
    (procedure "test_step_over" line 36)
    invoked from within
"test_step_over $displaced"
    ("uplevel" body line 2)
    invoked from within
"uplevel 1 $body"
    invoked from within
"with_test_prefix "displaced=$displaced" {
	test_step_over $displaced
    }"
    ("foreach" body line 6)
    invoked from within
"foreach displaced { "off" "on" "auto" } {
    if { $displaced != "off" && ![support_displaced_stepping] } {
	continue
    }

    with_test_prefix "dis..."
    (file ".../gdb/testsuite/gdb.base/step-over-no-symbols.exp" line 84)
    invoked from within
"source .../gdb/testsuite/gdb.base/step-over-no-symbols.exp"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 source .../gdb/testsuite/gdb.base/step-over-no-symbols.exp"
    invoked from within
"catch "uplevel #0 source $test_file_name""
Remote debugging from host xxx.xxx.xxx.xxx, port 47130
monitor exit
Killing process(es): 1092
Remote communication error.  Target disconnected.: Connection reset by peer.
(gdb)

To do so verify first, before making an arithmetic comparison, that the
values to compare are actually integers (using a string comparison would
result in a false PASS if both operands were empty, as in this case),
making the test script proceed normally:

(gdb) FAIL: gdb.base/step-over-no-symbols.exp: displaced=off: stepi
p /x $pc
Remote 'g' packet reply is too long (expected 264 bytes, got 532 bytes): 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
(gdb) FAIL: gdb.base/step-over-no-symbols.exp: displaced=off: get after PC
FAIL: gdb.base/step-over-no-symbols.exp: displaced=off: advanced
Remote debugging from host xxx.xxx.xxx.xxx, port 48404
monitor exit
Killing process(es): 1795
Remote communication error.  Target disconnected.: Connection reset by peer.
(gdb)

Note the double curly braces, to take advantage of `&&' operator's lazy
evaluation.

	gdb/testsuite/
	* gdb.base/step-over-no-symbols.exp: Verify that $before_addr
	and $after_addr are both integers before making a comparison.
2020-02-10 08:59:04 +00:00
Alan Modra 33176d912a gas: error for section type, attr, or entsize change
* config/obj-elf.c (obj_elf_change_section): Error for section
	type, attr or entsize changes in assembly.
	* testsuite/gas/elf/elf.exp: Pass -Z to gas for section5 test.
	* testsuite/gas/elf/section5.l: Update.
2020-02-10 15:28:23 +10:30
Alan Modra 821948744f gas -Z flag
-Z is supposed to "generate object file even after errors".  It
doesn't do so at the moment, unless you count a zero length object
file as useful output.  Fixed for most targets as follows.
I suspect avr and pru need target patches.

	* output-file.c (output_file_close): Do a normal close when
	flag_always_generate_output.
	* write.c (write_object_file): Don't stop output when
	flag_always_generate_output.
2020-02-10 15:28:23 +10:30
Alan Modra e1f85e11f5 z80 comments in archures.c
bfd-in2.h didn't match what was in archures.c and reloc.c.  This
fixes overlong comment lines and regenerates bfd-in2.h.

	* archures.c: Wrap overlong z80 comments.
	* bfd-in2.h: Regenerate.
2020-02-10 15:28:23 +10:30
GDB Administrator a6740d29a0 Automatic date update in version.in 2020-02-10 00:00:30 +00:00
Tom de Vries 2e9276136b [gdb] Mention CU offset for <artifical> if verbose
Say we're debugging a test-case with CUs with name "<artificial>", meaning
not originating from a single file compilation, and use the verbose setting:
...
$ gdb -iex "set verbose on" -batch cc1
Reading symbols from cc1...
Reading in symbols for <artificial>... \
  and /tmp/trunk/gcc/attribs.c... \
  ...
  and /tmp/trunk/gcc/tree-ssa-reassoc.c... \
  done.
...

From the "/tmp/trunk/gcc/attribs.c" message, it's clear which CU is loaded.  But
that's not the case for the "<artificial>" message.

The message uses the filename field of struct partial_symtab, which is
documented like this:
...
  /* Name of the source file which this partial_symtab defines,
     or if the psymtab is anonymous then a descriptive name for
     debugging purposes, or "".  It must not be NULL.  */
...

So, fix this by setting the filename field to a more descriptive name than
"<artificial>", by appending the CU offset.

This way, we print instead:
...
$ gdb -iex "set verbose on" -batch cc1
Reading symbols from cc1...
Reading in symbols for <artificial>@0x41146d9 \
  and /tmp/trunk/gcc/attribs.c... \
  ... \
  and /tmp/trunk/gcc/tree-ssa-reassoc.c... \
  done.
...

Build and reg-tested on x86_64-linux.

gdb/ChangeLog:

2020-02-09  Tom de Vries  <tdevries@suse.de>

	* dwarf2read.c (process_psymtab_comp_unit_reader): Append CU offset to
	filename if it matches "<artificial>".
2020-02-09 13:32:26 +01:00
Tom de Vries 46ce2b6f4c [gdb/testsuite] Capture many-headers.exp progress and output in gdb.log
When running test-case gdb.base/many-headers.exp, we have test output on
stdout/stderr:
...
Running src/gdb/testsuite/gdb.base/many-headers.exp ...
[New LWP 759]
Core was generated by `outputs/gdb.base/many-headers/many'.
Program terminated with signal SIGSEGV, Segmentation fault.
\#0  0x0000000000400688 in ?? ()

                === gdb Summary ===

nr of expected passes            1
...

Furthermore, the only trace in gdb.log that we have of the gdb command issued
is:
...
PASS: gdb.base/many-headers.exp: read core file
...

Fix this by echoing the gdb command in gdb.log, and capturing the
command output and pasting it into gdb.log:
...
( ulimit -s 4096; \
  gdb -nw -nx -data-directory data-directory -batch -core=many-headers.core )
[New LWP 1542]
Core was generated by `many'.
Program terminated with signal SIGSEGV, Segmentation fault.
\#0  0x0000000000400688 in ?? ()
PASS: gdb.base/many-headers.exp: read core file
...

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-02-09  Tom de Vries  <tdevries@suse.de>

	* gdb.base/many-headers.exp: Echo gdb command to gdb.log.  Capture gdb
	command output and paste it into gdb.log.  If any, paste catch message
	to gdb.log.
2020-02-09 13:30:03 +01:00
Hannes Domani 6bafc8451e Use enums for human-readable exception information.
Changes to $_siginfo type to this:

(gdb) pt $_siginfo
type = struct EXCEPTION_RECORD {
    enum ExceptionCode ExceptionCode;
    DWORD ExceptionFlags;
    struct EXCEPTION_RECORD *ExceptionRecord;
    PVOID ExceptionAddress;
    DWORD NumberParameters;
    union {
        ULONG_PTR ExceptionInformation[15];
        struct {...} AccessViolationInformation;
    };
}
(gdb) pt $_siginfo.ExceptionCode
type = enum ExceptionCode {FATAL_APP_EXIT = 1073741845,
    DBG_CONTROL_C = 1073807365, DBG_CONTROL_BREAK = 1073807368,
    DATATYPE_MISALIGNMENT = 2147483650, BREAKPOINT, SINGLE_STEP,
    ACCESS_VIOLATION = 3221225477, IN_PAGE_ERROR,
    ILLEGAL_INSTRUCTION = 3221225501, NONCONTINUABLE_EXCEPTION = 3221225509,
    INVALID_DISPOSITION, ARRAY_BOUNDS_EXCEEDED = 3221225612,
    FLOAT_DENORMAL_OPERAND, FLOAT_DIVIDE_BY_ZERO, FLOAT_INEXACT_RESULT,
    FLOAT_INVALID_OPERATION, FLOAT_OVERFLOW, FLOAT_STACK_CHECK,
    FLOAT_UNDERFLOW, INTEGER_DIVIDE_BY_ZERO, INTEGER_OVERFLOW,
    PRIV_INSTRUCTION, STACK_OVERFLOW = 3221225725, FAST_FAIL = 3221226505}
(gdb) pt $_siginfo.AccessViolationInformation
type = struct {
    enum ViolationType Type;
    PVOID Address;
}
(gdb) pt $_siginfo.AccessViolationInformation.Type
type = enum ViolationType {READ_ACCESS_VIOLATION, WRITE_ACCESS_VIOLATION,
    DATA_EXECUTION_PREVENTION_VIOLATION = 8}

Which makes it easier to understand the reason of the exception:

(gdb) p $_siginfo
$1 = {
  ExceptionCode = ACCESS_VIOLATION,
  ExceptionFlags = 0,
  ExceptionRecord = 0x0,
  ExceptionAddress = 0x401632 <main+18>,
  NumberParameters = 2,
  {
    ExceptionInformation = {1, 291, 0 <repeats 13 times>},
    AccessViolationInformation = {
      Type = WRITE_ACCESS_VIOLATION,
      Address = 0x123
    }
  }
}

gdb/ChangeLog:

2020-02-09  Hannes Domani  <ssbssa@yahoo.de>

	* windows-tdep.c (struct enum_value_name): New struct.
	(create_enum): New function.
	(windows_get_siginfo_type): Create and use enum types.
2020-02-09 12:15:50 +01:00
Hannes Domani 7928d571c5 Display ExceptionRecord for $_siginfo
Uses the $_siginfo convenience variable to show the last exception.

The type looks like this:

(gdb) pt $_siginfo
type = struct EXCEPTION_RECORD {
    DWORD ExceptionCode;
    DWORD ExceptionFlags;
    struct EXCEPTION_RECORD *ExceptionRecord;
    PVOID ExceptionAddress;
    DWORD NumberParameters;
    ULONG_PTR ExceptionInformation[15];
}

EXCEPTION_RECORD is documented at [1].

Example:

Program received signal SIGSEGV, Segmentation fault.
main () at crasher.c:4
4         *(int*)0x123 = 0;
(gdb) p $_siginfo
$1 = {
  ExceptionCode = 3221225477,
  ExceptionFlags = 0,
  ExceptionRecord = 0x0,
  ExceptionAddress = 0x401632 <main+18>,
  NumberParameters = 2,
  ExceptionInformation = {1, 291, 0 <repeats 13 times>}
}
(gdb) p/x $_siginfo.ExceptionCode
$2 = 0xc0000005
(gdb) p/x $_siginfo.ExceptionInformation[1]
$3 = 0x123

And 0xc0000005 is the value of EXCEPTION_ACCESS_VIOLATION.

[1] https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-exception_record

gdb/ChangeLog:

2020-02-09  Hannes Domani  <ssbssa@yahoo.de>

	* NEWS: Mention $_siginfo support for Windows.
	* windows-nat.c (handle_exception): Set siginfo_er.
	(windows_nat_target::mourn_inferior): Reset siginfo_er.
	(windows_xfer_siginfo): New function.
	(windows_nat_target::xfer_partial): Call windows_xfer_siginfo.
	* windows-tdep.c (struct windows_gdbarch_data): New struct.
	(init_windows_gdbarch_data): New function.
	(get_windows_gdbarch_data): New function.
	(windows_get_siginfo_type): New function.
	(windows_init_abi): Register windows_get_siginfo_type.
	(_initialize_windows_tdep): Register init_windows_gdbarch_data.

gdbserver/ChangeLog:

2020-02-09  Hannes Domani  <ssbssa@yahoo.de>

	* win32-low.c (win32_clear_inferiors): Reset siginfo_er.
	(handle_exception): Set siginfo_er.
	(win32_xfer_siginfo): New function.
2020-02-09 12:14:51 +01:00
GDB Administrator 98d3eb9390 Automatic date update in version.in 2020-02-09 00:00:13 +00:00
Tom Tromey 6751ebaea0 Remove "keep" parameter from cutu_reader constructor
cutu_reader has a "keep" parameter, which is used to decide what to do
with a new CU when the reader is destroyed.  Most code does not try to
preserve the CU, so this patch removes this parameter and instead adds
a new method that users can call to preserve the CU on the chain.

gdb/ChangeLog
2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (class cutu_reader) <cutu_reader,
	init_tu_and_read_dwo_dies>: Remove "keep" parameter.
	<keep>: Declare method.
	<m_keep>: Remove member.
	<~cutu_reader>: Remove.
	(cutu_reader::init_tu_and_read_dwo_dies): Update.
	(cutu_reader::cutu_reader): Update.
	(cutu_reader::keep): Rename from ~cutu_reader.
	(process_psymtab_comp_unit, build_type_psymtabs_1)
	(process_skeletonless_type_unit, load_partial_comp_unit)
	(load_full_comp_unit, dwarf2_read_addr_index)
	(read_signatured_type): Update.

Change-Id: I859b1c64313569d76d46317c14e9b077ebc3a27b
2020-02-08 13:43:55 -07:00
Tom Tromey 135f543748 Simplify "want_partial_unit" handling
This changes the "want_partial_unit" parameters to have type bool, and
also removes the parameter from process_psymtab_comp_unit_reader.
This latter change seemed like an improvement, because it avoids a
pointless function call in the case where we are not planning to read
a partial unit.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (process_psymtab_comp_unit_reader): Remove
	"want_partial_unit" parameter.
	(process_psymtab_comp_unit): Change want_partial_unit to bool.
	Inline check for DW_TAG_partial_unit.
	(dwarf2_build_psymtabs_hard, scan_partial_symbols): Update.

Change-Id: I99e647f0c4faa3346e90a6e7bacc82af57eccff1
2020-02-08 13:43:24 -07:00
Tom Tromey 9f66ff1c8c Move two more functions to dwarf2/leb.h
This moves read_n_bytes and read_direct_string to be with the the
low-level value-reading code.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (read_n_bytes, read_direct_string): Move to
	read.c.
	* dwarf2/leb.h (read_n_bytes, read_direct_string): Move from
	read.c.

Change-Id: Id07bfa13d93c0ac1f47a385749a8f01f4755b818
2020-02-08 13:43:24 -07:00
Tom Tromey c8a7a66fb7 Convert read_address to a method on comp_unit_head
This changes read_address to be a method on comp_unit_head.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (read_address): Move to comp-unit.c.
	(dwarf2_rnglists_process, dwarf2_ranges_process)
	(read_attribute_value, dwarf_decode_lines_1)
	(var_decode_location, decode_locdesc): Update.
	* dwarf2/comp-unit.c (comp_unit_head::read_address): Move from
	read.c.  Remove "cu" parameter.
	* dwarf2/comp-unit.h (struct comp_unit_head) <read_address>: New
	method.

Change-Id: Ibd6c7235f2e4d5fd88c272cfd2c3d3328618cc56
2020-02-08 13:43:24 -07:00
Tom Tromey 8266302dc3 Convert read_offset to method on comp_unit_head
This changes one of the read_offset overloads to be a method on
comp_unit_head.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (read_attribute_value, read_indirect_string)
	(read_indirect_line_string): Update.
	* dwarf2/comp-unit.c (read_offset): Remove.
	(read_comp_unit_head): Update.
	* dwarf2/comp-unit.h (struct comp_unit_head) <read_offset>: New
	method.
	(read_offset): Don't declare.

Change-Id: Ia595702a5748337b7c031352bc437956baab9990
2020-02-08 13:43:24 -07:00
Tom Tromey 4057dfde49 Create dwarf2/comp-unit.[ch]
This creates the new files dwarf2/comp-unit.[ch], moving
comp_unit_head and helpers to those files.  A couple of functions are
turned into methods, because it was convenient to do so now.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* Makefile.in (COMMON_SFILES): Add dwarf2/comp-unit.c.
	* dwarf2/read.c (struct comp_unit_head): Move to
	dwarf2/comp-unit.h.
	(enum class rcuh_kind): Move to comp-unit.h.
	(get_cu_length, offset_in_cu_p): Now methods on comp_unit_head.
	(read_comp_unit_head, error_check_comp_unit_head)
	(read_and_check_comp_unit_head): Move to comp-unit.c.
	(read_offset, dwarf_unit_type_name): Likewise.
	(create_debug_type_hash_table, read_cutu_die_from_dwo)
	(cutu_reader::cutu_reader, read_call_site_scope)
	(find_partial_die, follow_die_offset): Update.
	* dwarf2/comp-unit.h: New file, from dwarf2read.c.

Change-Id: Id961b9674c0081ed061083c8152c38b27b27388a
2020-02-08 13:43:24 -07:00
Tom Tromey 24aa364d60 Move read_offset_1 to leb.c
This moves read_offset_1 to leb.c, as it is a low-level data-reading
function.  It is also renamed to remove the "_1", because gdb can use
overloading now, and this is clearer.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (read_offset_1): Move to leb.c.
	(read_abbrev_offset, read_offset, dwarf_decode_line_header)
	(dwarf_decode_macro_bytes): Update.
	* dwarf2/leb.c (read_offset): Rename; move from read.c.
	* dwarf2/leb.h (read_offset): Declare.

Change-Id: I048140598acfa76eade2cc529ab7933d4b9ca0b3
2020-02-08 13:43:24 -07:00
Tom Tromey 2c7d5afccf Convert dwarf2_section_size to a method
This changes dwarf2_section_size to be a method on
dwarf2_section_info.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (dwarf2_section_size): Remove.
	(error_check_comp_unit_head, dwarf2_symbol_mark_computed):
	Update.
	* dwarf2/section.h (struct dwarf2_section_info) <get_size>: New method.

Change-Id: I12928fee5c84350ce98883e329357b86888d639b
2020-02-08 13:43:24 -07:00
Tom Tromey 4075cb2668 Unify read_initial_length implementations
There are two implementations of read_initial_length in gdb.  This
merges them and moves the resulting function to leb.c.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (read_initial_length): Move to leb.c.
	* dwarf2/leb.h (read_initial_length): Declare.
	* dwarf2/leb.c (read_initial_length): Move from read.c.  Add
	handle_nonstd parameter.
	* dwarf2/frame.c (read_initial_length): Remove.
	(decode_frame_entry_1): Update.

Change-Id: I34d37bad0f8a584bfa781432cba25e05e1bd5750
2020-02-08 13:43:24 -07:00
Tom Tromey 09ba997f32 Add some methods to dwarf2_per_cu_data
This changes a few helper functions to be methods on
dwarf2_per_cu_data.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/loc.c (dwarf2_find_location_expression)
	(dwarf_evaluate_loc_desc::get_tls_address)
	(dwarf_evaluate_loc_desc::push_dwarf_reg_entry_value)
	(rw_pieced_value, dwarf2_evaluate_loc_desc_full)
	(dwarf2_locexpr_baton_eval, dwarf2_evaluate_property)
	(dwarf2_compile_property_to_c)
	(dwarf2_loc_desc_get_symbol_read_needs)
	(dwarf2_compile_expr_to_ax, locexpr_describe_location)
	(locexpr_tracepoint_var_ref, locexpr_generate_c_location)
	(loclist_describe_location, loclist_tracepoint_var_ref)
	(loclist_generate_c_location): Update.
	* compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update.
	* dwarf2/loc.h (dwarf2_per_cu_objfile, dwarf2_per_cu_addr_size)
	(dwarf2_per_cu_ref_addr_size, dwarf2_per_cu_offset_size)
	(dwarf2_per_cu_text_offset, dwarf2_version): Don't declare.
	* dwarf2/read.c (dwarf2_per_cu_data::objfile)
	(dwarf2_per_cu_data::addr_size)
	(dwarf2_per_cu_data::ref_addr_size)
	(dwarf2_per_cu_data::text_offset)
	(dwarf2_per_cu_data::addr_type): Now methods.
	(per_cu_header_read_in): Make per_cu "const".
	(dwarf2_version): Remove.
	(dwarf2_per_cu_data::int_type): Now a method.
	(dwarf2_per_cu_data::_addr_sized_int_type): Likewise.
	(set_die_type, read_array_type, read_subrange_index_type)
	(read_tag_string_type, read_subrange_type): Update.
	* dwarf2/read.h (struct dwarf2_per_cu_data) <addr_size,
	offset_size, ref_addr_size, text_offset, addr_type, version,
	objfile, int_type, addr_sized_int_type>: Declare methods.

Change-Id: I07a42fa26e00795352389fa7a0cc1c12997d26f7
2020-02-08 13:43:24 -07:00
Tom Tromey 96c738c02f Move dwarf2_per_cu_data::imported_symtabs earlier
This moves dwarf2_per_cu_data::imported_symtabs earlier, near where
the other data members are located.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.h (struct dwarf2_per_cu_data) <imported_symtabs>:
	Move earlier.

Change-Id: I314ddaa6f67c53a848e513b3f6d42913bd957833
2020-02-08 13:43:24 -07:00
Tom Tromey 8fdd972c30 Move DWARF line_header to new file
This moves the line_header class to a pair of new files, making
dwarf2/read.c somewhat smaller.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.h (dwarf_line_debug): Declare.
	* Makefile.in (COMMON_SFILES): Add dwarf2/line-header.c.
	* dwarf2/read.c: Move line_header code to new files.
	(dwarf_line_debug): No longer static.
	* dwarf2/line-header.c: New file.
	* dwarf2/line-header.h: New file.

Change-Id: I8d9d8a2398b4e888e20cc5dd68d041c28b5a06e3
2020-02-08 13:43:24 -07:00
Tom Tromey 0307581275 Change line_table methods to return unique_xmalloc_ptr
This changes the two new line_table methods to return
unique_xmalloc_ptr.  This removes a bit of manual memory management.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (struct line_header) <file_full_name,
	file_file_name>: Return unique_xmalloc_ptr.
	(line_header::file_file_name): Update.
	(line_header::file_full_name): Update.
	(dw2_get_file_names_reader): Update.
	(macro_start_file): Update.

Change-Id: I9442dba43882fb26097d0770a291eea2b03913a4
2020-02-08 13:43:24 -07:00
Tom Tromey bb82240439 Change file_full_name and file_file_name methods
This changes file_full_name and file_file_name methods to be methods
on line_header.  This seems more clear to me.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (struct line_header) <file_full_name,
	file_file_name>: Declare methods.
	(dw2_get_file_names_reader): Update.
	(file_file_name): Now a method.
	(file_full_name): Likewise.
	(macro_start_file): Update.

Change-Id: I50d3e91665a9637c732e1e8d8e4263764c766d9c
2020-02-08 13:43:24 -07:00
Tom Tromey 009b64fc98 Move dwarf_always_disassemble to dwarf2/loc.c
dwarf_always_disassemble is only used in dwarf2/loc.c, so move the
definition and the command infrastructure to that file.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (dwarf_always_disassemble)
	(show_dwarf_always_disassemble): Move to loc.c.
	(_initialize_dwarf2_read): Move "always-disassemble" registration
	to loc.c.
	* dwarf2/read.h (dwarf_always_disassemble): Don't declare.
	* dwarf2/loc.c (dwarf_always_disassemble): Move from read.c.  Now
	static.
	(show_dwarf_always_disassemble): Move from read.c.
	(_initialize_dwarf2loc): Move always-disassemble from read.c.

Change-Id: I33fb88112e98e583c3f4919d20e4d100f2ea0124
2020-02-08 13:43:24 -07:00
Tom Tromey 5895093f4a Change dwarf2_per_objfile::quick_file_names_table to htab_up
This changes dwarf2_per_objfile::quick_file_names_table to be an
htab_up.  This just removes a bit of manual management.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/read.c (~dwarf2_per_objfile): Update.
	(create_quick_file_names_table): Return htab_up.
	(dw2_get_file_names_reader, dw2_forget_cached_source_info):
	Update.
	* dwarf2/read.h (struct dwarf2_per_objfile)
	<quick_file_names_table>: Now htab_up.

Change-Id: I4ff2fce8b8af27f4bfe01a11b97a889edfd23151
2020-02-08 13:43:24 -07:00
Tom Tromey b3b3227982 Minor simplification in abbrev_table::read
abbrev_table::read increments cur_abbrev->num_attrs in the inner loop,
but there's no need to do this, as the information is already stored
in the temporary vector.

2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/abbrev.c (abbrev_table::read): Simplify.

Change-Id: I765f12850ffa1c6066e884bb22c94468d1abdba4
2020-02-08 13:43:24 -07:00