binutils-gdb/gdbsupport/common-regcache.h
Tom Tromey 01027315f5 Move gdbsupport to the top level
This patch moves the gdbsupport directory to the top level.  This is
the next step in the ongoing project to move gdbserver to the top
level.

The bulk of this patch was created by "git mv gdb/gdbsupport gdbsupport".

This patch then adds a build system to gdbsupport and wires it into
the top level.  Then it changes gdb to use the top-level build.

gdbserver, on the other hand, is not yet changed.  It still does its
own build of gdbsupport.

ChangeLog
2020-01-14  Tom Tromey  <tom@tromey.com>

	* src-release.sh (GDB_SUPPORT_DIRS): Add gdbsupport.
	* MAINTAINERS: Add gdbsupport.
	* configure: Rebuild.
	* configure.ac (configdirs): Add gdbsupport.
	* gdbsupport: New directory, move from gdb/gdbsupport.
	* Makefile.def (host_modules, dependencies): Add gnulib.
	* Makefile.in: Rebuild.

gdb/ChangeLog
2020-01-14  Tom Tromey  <tom@tromey.com>

	* nat/x86-linux-dregs.c: Include configh.h.
	* nat/linux-ptrace.c: Include configh.h.
	* nat/linux-btrace.c: Include configh.h.
	* defs.h: Include config.h, bfd.h.
	* configure.ac: Don't source common.host.
	(CONFIG_OBS, CONFIG_SRCS): Remove gdbsupport files.
	* configure: Rebuild.
	* acinclude.m4: Update path.
	* Makefile.in (SUPPORT, LIBSUPPORT, INCSUPPORT): New variables.
	(CONFIG_SRC_SUBDIR): Remove gdbsupport.
	(INTERNAL_CFLAGS_BASE): Add INCSUPPORT.
	(CLIBS): Add LIBSUPPORT.
	(CDEPS): Likewise.
	(COMMON_SFILES): Remove gdbsupport files.
	(HFILES_NO_SRCDIR): Likewise.
	(stamp-version): Update path to create-version.sh.
	(ALLDEPFILES): Remove gdbsupport files.

gdb/gdbserver/ChangeLog
2020-01-14  Tom Tromey  <tom@tromey.com>

	* server.h: Include config.h.
	* gdbreplay.c: Include config.h.
	* configure: Rebuild.
	* configure.ac: Don't source common.host.
	* acinclude.m4: Update path.
	* Makefile.in (INCSUPPORT): New variable.
	(INCLUDE_CFLAGS): Add INCSUPPORT.
	(SFILES): Update paths.
	(version-generated.c): Update path to create-version.sh.
	(gdbsupport/%-ipa.o, gdbsupport/%.o): Update paths.

gdbsupport/ChangeLog
2020-01-14  Tom Tromey  <tom@tromey.com>

	* common-defs.h: Add GDBSERVER case.  Update includes.
	* acinclude.m4, aclocal.m4, config.in, configure, configure.ac,
	Makefile.am, Makefile.in, README: New files.
	* Moved from ../gdb/gdbsupport/

Change-Id: I07632e7798635c1bab389bf885971e584fb4bb78
2020-01-14 16:25:02 -07:00

86 lines
3.2 KiB
C

/* Cache and manage the values of registers
Copyright (C) 2014-2020 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/>. */
#ifndef COMMON_COMMON_REGCACHE_H
#define COMMON_COMMON_REGCACHE_H
/* This header is a stopgap until we have an independent regcache. */
enum register_status : signed char
{
/* The register value is not in the cache, and we don't know yet
whether it's available in the target (or traceframe). */
REG_UNKNOWN = 0,
/* The register value is valid and cached. */
REG_VALID = 1,
/* The register value is unavailable. E.g., we're inspecting a
traceframe, and this register wasn't collected. Note that this
is different a different "unavailable" from saying the register
does not exist in the target's architecture --- in that case,
the target should have given us a target description that does
not include the register in the first place. */
REG_UNAVAILABLE = -1
};
/* Return a pointer to the register cache associated with the
thread specified by PTID. This function must be provided by
the client. */
extern struct regcache *get_thread_regcache_for_ptid (ptid_t ptid);
/* Return the size of register numbered N in REGCACHE. This function
must be provided by the client. */
extern int regcache_register_size (const struct regcache *regcache, int n);
/* Read the PC register. This function must be provided by the
client. */
extern CORE_ADDR regcache_read_pc (struct regcache *regcache);
/* Read a raw register into a unsigned integer. */
extern enum register_status regcache_raw_read_unsigned
(struct regcache *regcache, int regnum, ULONGEST *val);
ULONGEST regcache_raw_get_unsigned (struct regcache *regcache, int regnum);
struct reg_buffer_common
{
virtual ~reg_buffer_common () = default;
/* Get the availability status of the value of register REGNUM in this
buffer. */
virtual register_status get_register_status (int regnum) const = 0;
/* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */
virtual void raw_supply (int regnum, const void *buf) = 0;
/* Collect register REGNUM from REGCACHE and store its contents in BUF. */
virtual void raw_collect (int regnum, void *buf) const = 0;
/* Compare the contents of the register stored in the regcache (ignoring the
first OFFSET bytes) to the contents of BUF (without any offset). Returns
true if the same. */
virtual bool raw_compare (int regnum, const void *buf, int offset) const = 0;
};
#endif /* COMMON_COMMON_REGCACHE_H */