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Author SHA1 Message Date
Andrew Burgess
e06f3d6eba gdb: Support printf 'z' size modifier 
The gdb format mechanism doesn't currently support the 'z' size
modifier, there are a few places in GDB where this is used.  Instead
of removing these uses lets just add support to GDB for using 'z'.

I found this issue when trying to use some of the debug output.
Before this commit:

  (gdb) set debug dwarf-line 9
  (gdb) file test
  Reading symbols from test...
  Unrecognized format specifier 'z' in printf
  (No debugging symbols found in test)
  (gdb)

After this commit:

  (gdb) set debug dwarf-line 9
  (gdb) file test
  Reading symbols from test...
  Adding dir 1: /usr/include
  Adding file 1: test.c
  Adding file 2: stdc-predef.h
  Processing actual line 3: file 1, address 0x4004a0, is_stmt 1, discrim 0
  Processing actual line 4: file 1, address 0x4004a0, is_stmt 1, discrim 0
  .... lots of debug output ...
  Processing actual line 10: file 1, address 0x4003b7, is_stmt 0, discrim 0
  (gdb)

I've added a self test to cover the integer format size modifiers,
including the 'z' modifier.

gdb/ChangeLog:

	* gdbsupport/format.c (format_pieces::format_pieces): Support
	printf 'z' size modifier.
	* gdbsupport/format.h (enum argclass): Add size_t_arg.
	* printcmd.c (ui_printf):  Handle size_t_arg.
	* ui-out.c (ui_out::vmessage): Likewise.
	* unittests/format_pieces-selftests.c (test_format_int_sizes): New
	function.
	(run_tests): Call test_format_int_sizes.

gdb/gdbserver/ChangeLog:

	* ax.c (ax_printf): Handle size_t_arg.

Change-Id: Ib6c44d88aa5bce265d757e4c0698881803dd186f
 2019-11-12 23:46:41 +00:00
Pedro Alves
2a3c1174c3 Introduce gdb-specific %p format suffixes 
This introduces a few gdb-specific %p format suffixes.  This is useful
for emitting gdb-specific output in an ergonomic way.  It also yields
code that is more i18n-friendly.

The comment before ui_out::message explains the details.

Note that the tests had to change a little.  When using one of the gdb
printf functions with styling, there can be spurious style changes
emitted to the output.  This did not seem worthwhile to fix, as the
low-level output functions are rather spaghetti-ish already, and I
didn't want to make them even worse.

This change also necessitated adding support for "*" as precision and
width in format_pieces.  These are used in various spots in gdb, and
it seemed better to me to implement them than to remove the uses.

gdb/ChangeLog
2019-10-01  Pedro Alves  <palves@redhat.com>
	    Tom Tromey  <tom@tromey.com>

	* unittests/format_pieces-selftests.c: Add gdb_format parameter.
	(test_gdb_formats): New function.
	(run_tests): Call it.
	(test_format_specifier): Update.
	* utils.h (fputs_filtered): Update comment.
	(vfprintf_styled, vfprintf_styled_no_gdbfmt)
	(fputs_styled_unfiltered): Declare.
	* utils.c (fputs_styled_unfiltered): New function.
	(vfprintf_maybe_filtered): Add gdbfmt parameter.
	(vfprintf_filtered): Update.
	(vfprintf_unfiltered, vprintf_filtered): Update.
	(vfprintf_styled, vfprintf_styled_no_gdbfmt): New functions.
	* ui-out.h (enum ui_out_flag) <unfiltered_output,
	disallow_ui_out_field>: New constants.
	(enum class field_kind): New.
	(struct base_field_s, struct signed_field_s): New.
	(signed_field): New function.
	(struct string_field_s): New.
	(string_field): New function.
	(struct styled_string_s): New.
	(styled_string): New function.
	(class ui_out) <message>: Add comment.
	<vmessage, call_do_message>: New methods.
	<do_message>: Add style parameter.
	* ui-out.c (ui_out::call_do_message, ui_out::vmessage): New
	methods.
	(ui_out::message): Rewrite.
	* mi/mi-out.h (class mi_ui_out) <do_message>: Add style
	parameter.
	* mi/mi-out.c (mi_ui_out::do_message): Add style parameter.
	* gdbsupport/format.h (class format_pieces) <format_pieces>: Add
	gdb_extensions parameter.
	(class format_piece): Add parameter to constructor.
	(n_int_args): New field.
	* gdbsupport/format.c (format_pieces::format_pieces): Add
	gdb_extensions parameter.  Handle '*'.
	* cli-out.h (class cli_ui_out) <do_message>: Add style parameter.
	* cli-out.c (cli_ui_out::do_message): Add style parameter.  Call
	vfprintf_styled_no_gdbfmt.
	(cli_ui_out::do_field_string, cli_ui_out::do_spaces)
	(cli_ui_out::do_text, cli_ui_out::field_separator): Allow
	unfiltered output.
	* ui-style.h (struct ui_file_style) <ptr>: New method.

gdb/testsuite/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* gdb.base/style.exp: Update tests.
 2019-10-01 15:12:38 -06:00
Tom Tromey
0dfe5bfbb7 Don't create empty literal pieces 
I noticed that format_pieces can create an empty literal piece.
However, there's never a need for one, so this patch removes the
possibility.

gdb/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* unittests/format_pieces-selftests.c: Update.  Add final format.
	* gdbsupport/format.c (format_pieces::format_pieces): Don't add
	empty literal pieces.
 2019-10-01 15:12:37 -06:00
Tom Tromey
268a13a5a3 Rename common to gdbsupport 
This is the next patch in the ongoing series to move gdbsever to the
top level.

This patch just renames the "common" directory.  The idea is to do
this move in two parts: first rename the directory (this patch), then
move the directory to the top.  This approach makes the patches a bit
more tractable.

I chose the name "gdbsupport" for the directory.  However, as this
patch was largely written by sed, we could pick a new name without too
much difficulty.

Tested by the buildbot.

gdb/ChangeLog
2019-07-09  Tom Tromey  <tom@tromey.com>

	* contrib/ari/gdb_ari.sh: Change common to gdbsupport.
	* configure: Rebuild.
	* configure.ac: Change common to gdbsupport.
	* gdbsupport: Rename from common.
	* acinclude.m4: Change common to gdbsupport.
	* Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES)
	(HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to
	gdbsupport.
	* aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c,
	amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c,
	amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c,
	amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c,
	amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c,
	arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c,
	arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c,
	arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c,
	arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c,
	auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h,
	btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c,
	charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c,
	cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c,
	coff-pe-read.c, command.h, compile/compile-c-support.c,
	compile/compile-c.h, compile/compile-cplus-symbols.c,
	compile/compile-cplus-types.c, compile/compile-cplus.h,
	compile/compile-loc2c.c, compile/compile.c, completer.c,
	completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c,
	cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c,
	darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c,
	disasm.h, dtrace-probe.c, dwarf-index-cache.c,
	dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c,
	dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c,
	event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c,
	features/aarch64-core.c, features/aarch64-fpu.c,
	features/aarch64-pauth.c, features/aarch64-sve.c,
	features/i386/32bit-avx.c, features/i386/32bit-avx512.c,
	features/i386/32bit-core.c, features/i386/32bit-linux.c,
	features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c,
	features/i386/32bit-segments.c, features/i386/32bit-sse.c,
	features/i386/64bit-avx.c, features/i386/64bit-avx512.c,
	features/i386/64bit-core.c, features/i386/64bit-linux.c,
	features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c,
	features/i386/64bit-segments.c, features/i386/64bit-sse.c,
	features/i386/x32-core.c, features/riscv/32bit-cpu.c,
	features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c,
	features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c,
	features/riscv/64bit-fpu.c, features/tic6x-c6xp.c,
	features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h,
	findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h,
	gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c,
	gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c,
	go32-nat.c, guile/guile.c, guile/scm-ports.c,
	guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c,
	i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c,
	i386-linux-tdep.c, i386-tdep.c, i387-tdep.c,
	ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c,
	inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h,
	inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h,
	inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c,
	linux-tdep.c, linux-thread-db.c, location.c, machoread.c,
	macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h,
	mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c,
	mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h,
	minsyms.c, mips-linux-tdep.c, namespace.h,
	nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h,
	nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c,
	nat/amd64-linux-siginfo.c, nat/fork-inferior.c,
	nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c,
	nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c,
	nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h,
	nat/linux-waitpid.c, nat/mips-linux-watch.c,
	nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c,
	nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c,
	nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h,
	obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c,
	parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c,
	procfs.c, producer.c, progspace.h, psymtab.h,
	python/py-framefilter.c, python/py-inferior.c, python/py-ref.h,
	python/py-type.c, python/python.c, record-btrace.c, record-full.c,
	record.c, record.h, regcache-dump.c, regcache.c, regcache.h,
	remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c,
	riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c,
	selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c,
	ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c,
	source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c,
	stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h,
	symtab.c, symtab.h, target-descriptions.c, target-descriptions.h,
	target-memory.c, target.c, target.h, target/waitstatus.c,
	target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c,
	top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c,
	tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h,
	unittests/array-view-selftests.c,
	unittests/child-path-selftests.c, unittests/cli-utils-selftests.c,
	unittests/common-utils-selftests.c,
	unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c,
	unittests/format_pieces-selftests.c,
	unittests/function-view-selftests.c,
	unittests/lookup_name_info-selftests.c,
	unittests/memory-map-selftests.c, unittests/memrange-selftests.c,
	unittests/mkdir-recursive-selftests.c,
	unittests/observable-selftests.c,
	unittests/offset-type-selftests.c, unittests/optional-selftests.c,
	unittests/parse-connection-spec-selftests.c,
	unittests/ptid-selftests.c, unittests/rsp-low-selftests.c,
	unittests/scoped_fd-selftests.c,
	unittests/scoped_mmap-selftests.c,
	unittests/scoped_restore-selftests.c,
	unittests/string_view-selftests.c, unittests/style-selftests.c,
	unittests/tracepoint-selftests.c, unittests/unpack-selftests.c,
	unittests/utils-selftests.c, unittests/xml-utils-selftests.c,
	utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c,
	value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c,
	xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c,
	xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport.

gdb/gdbserver/ChangeLog
2019-07-09  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.
	* configure.ac: Change common to gdbsupport.
	* acinclude.m4: Change common to gdbsupport.
	* Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS)
	(version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change
	common to gdbsupport.
	* ax.c, event-loop.c, fork-child.c, gdb_proc_service.h,
	gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c,
	inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c,
	linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c,
	linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c,
	linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h,
	nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c,
	server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h,
	thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change
	common to gdbsupport.
 2019-07-09 07:45:38 -06:00
Renamed from gdb/common/format.c (Browse further)