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binutils-gdb/gdb/frame-base.c
Tom Tromey 0d12e84cfc Don't include gdbarch.h from defs.h
I touched symtab.h and was surprised to see how many files were
rebuilt.  I looked into it a bit, and found that defs.h includes
gdbarch.h, which in turn includes many things.

gdbarch.h is only needed by a minority ofthe files in gdb, so this
patch removes the include from defs.h and updates the fallout.

I did "wc -l" on the files in build/gdb/.deps; this patch reduces the
line count from 139935 to 137030; so there are definitely future
build-time savings here.

Note that while I configured with --enable-targets=all, it's possible
that some *-nat.c file needs an update.  I could not test all of
these.  The buildbot caught a few problems along these lines.

gdb/ChangeLog
2019-07-10  Tom Tromey  <tom@tromey.com>

	* defs.h: Don't include gdbarch.h.
	* aarch64-ravenscar-thread.c, aarch64-tdep.c, alpha-bsd-tdep.h,
	alpha-linux-tdep.c, alpha-mdebug-tdep.c, arch-utils.h, arm-tdep.h,
	ax-general.c, btrace.c, buildsym-legacy.c, buildsym.h, c-lang.c,
	cli/cli-decode.h, cli/cli-dump.c, cli/cli-script.h,
	cli/cli-style.h, coff-pe-read.h, compile/compile-c-support.c,
	compile/compile-cplus.h, compile/compile-loc2c.c, corefile.c,
	cp-valprint.c, cris-linux-tdep.c, ctf.c, d-lang.c, d-namespace.c,
	dcache.c, dicos-tdep.c, dictionary.c, disasm-selftests.c,
	dummy-frame.c, dummy-frame.h, dwarf2-frame-tailcall.c,
	dwarf2expr.c, expression.h, f-lang.c, frame-base.c,
	frame-unwind.c, frv-linux-tdep.c, gdbarch-selftests.c, gdbtypes.h,
	go-lang.c, hppa-nbsd-tdep.c, hppa-obsd-tdep.c, i386-dicos-tdep.c,
	i386-tdep.h, ia64-vms-tdep.c, interps.h, language.c,
	linux-record.c, location.h, m2-lang.c, m32r-linux-tdep.c,
	mem-break.c, memattr.c, mn10300-linux-tdep.c, nios2-linux-tdep.c,
	objfiles.h, opencl-lang.c, or1k-linux-tdep.c, p-lang.c,
	parser-defs.h, ppc-tdep.h, probe.h, python/py-record-btrace.c,
	record-btrace.c, record.h, regcache-dump.c, regcache.h,
	riscv-fbsd-tdep.c, riscv-linux-tdep.c, rust-exp.y,
	sh-linux-tdep.c, sh-nbsd-tdep.c, source-cache.c,
	sparc-nbsd-tdep.c, sparc-obsd-tdep.c, sparc-ravenscar-thread.c,
	sparc64-fbsd-tdep.c, std-regs.c, target-descriptions.h,
	target-float.c, tic6x-linux-tdep.c, tilegx-linux-tdep.c, top.c,
	tracefile.c, trad-frame.c, type-stack.h, ui-style.c, utils.c,
	utils.h, valarith.c, valprint.c, varobj.c, x86-tdep.c,
	xml-support.h, xtensa-linux-tdep.c, cli/cli-cmds.h: Update.
	* s390-linux-nat.c, procfs.c, inf-ptrace.c: Likewise.
2019-07-10 14:53:53 -06:00

129 lines
3.5 KiB
C

/* Definitions for frame address handler, for GDB, the GNU debugger.
Copyright (C) 2003-2019 Free Software Foundation, Inc.
This file is part of GDB.
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/>. */
#include "defs.h"
#include "frame-base.h"
#include "frame.h"
#include "gdb_obstack.h"
#include "gdbarch.h"
/* A default frame base implementations. If it wasn't for the old
DEPRECATED_FRAME_LOCALS_ADDRESS and DEPRECATED_FRAME_ARGS_ADDRESS,
these could be combined into a single function. All architectures
really need to override this. */
static CORE_ADDR
default_frame_base_address (struct frame_info *this_frame, void **this_cache)
{
return get_frame_base (this_frame); /* sigh! */
}
static CORE_ADDR
default_frame_locals_address (struct frame_info *this_frame, void **this_cache)
{
return default_frame_base_address (this_frame, this_cache);
}
static CORE_ADDR
default_frame_args_address (struct frame_info *this_frame, void **this_cache)
{
return default_frame_base_address (this_frame, this_cache);
}
const struct frame_base default_frame_base = {
NULL, /* No parent. */
default_frame_base_address,
default_frame_locals_address,
default_frame_args_address
};
static struct gdbarch_data *frame_base_data;
struct frame_base_table_entry
{
frame_base_sniffer_ftype *sniffer;
struct frame_base_table_entry *next;
};
struct frame_base_table
{
struct frame_base_table_entry *head;
struct frame_base_table_entry **tail;
const struct frame_base *default_base;
};
static void *
frame_base_init (struct obstack *obstack)
{
struct frame_base_table *table
= OBSTACK_ZALLOC (obstack, struct frame_base_table);
table->tail = &table->head;
table->default_base = &default_frame_base;
return table;
}
void
frame_base_append_sniffer (struct gdbarch *gdbarch,
frame_base_sniffer_ftype *sniffer)
{
struct frame_base_table *table
= (struct frame_base_table *) gdbarch_data (gdbarch, frame_base_data);
(*table->tail)
= GDBARCH_OBSTACK_ZALLOC (gdbarch, struct frame_base_table_entry);
(*table->tail)->sniffer = sniffer;
table->tail = &(*table->tail)->next;
}
void
frame_base_set_default (struct gdbarch *gdbarch,
const struct frame_base *default_base)
{
struct frame_base_table *table
= (struct frame_base_table *) gdbarch_data (gdbarch, frame_base_data);
table->default_base = default_base;
}
const struct frame_base *
frame_base_find_by_frame (struct frame_info *this_frame)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct frame_base_table *table
= (struct frame_base_table *) gdbarch_data (gdbarch, frame_base_data);
struct frame_base_table_entry *entry;
for (entry = table->head; entry != NULL; entry = entry->next)
{
const struct frame_base *desc = NULL;
desc = entry->sniffer (this_frame);
if (desc != NULL)
return desc;
}
return table->default_base;
}
void
_initialize_frame_base (void)
{
frame_base_data = gdbarch_data_register_pre_init (frame_base_init);
}