Initial gdbserver support for ARM.
Obtained from: Juniper Networks, Semihalf
This commit is contained in:
Rafal Jaworowski
parent
6cfbfdb6f9
commit
c7b4433263
@ -2,7 +2,7 @@
|
||||
|
||||
SUBDIR= doc libgdb gdb gdbtui kgdb
|
||||
|
||||
.if ${MACHINE_ARCH} == "i386"
|
||||
.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "arm"
|
||||
SUBDIR+=gdbserver
|
||||
.endif
|
||||
|
||||
|
||||
@ -10,9 +10,17 @@ GDBDIR= ${.CURDIR}/../../../../contrib/gdb
|
||||
|
||||
PROG= gdbserver
|
||||
|
||||
SRCS= i387-fp.c inferiors.c mem-break.c regcache.c remote-utils.c \
|
||||
server.c signals.c target.c reg-i386.c utils.c
|
||||
SRCS+= fbsd-low.c fbsd-i386-low.c
|
||||
SRCS= inferiors.c mem-break.c regcache.c remote-utils.c \
|
||||
server.c signals.c target.c utils.c
|
||||
SRCS+= fbsd-low.c
|
||||
|
||||
.if ${MACHINE_ARCH} == "i386"
|
||||
SRCS+= fbsd-i386-low.c i387-fp.c reg-i386.c
|
||||
.endif
|
||||
|
||||
.if ${MACHINE_ARCH} == "arm"
|
||||
SRCS+= fbsd-arm-low.c reg-arm.c
|
||||
.endif
|
||||
|
||||
#CFLAGS+= -I${.CURDIR}/../arch/${MACHINE_ARCH}
|
||||
CFLAGS+= -I${GDBDIR}/gdb/gdbserver
|
||||
|
||||
146
gnu/usr.bin/gdb/gdbserver/fbsd-arm-low.c
Normal file
146
gnu/usr.bin/gdb/gdbserver/fbsd-arm-low.c
Normal file
@ -0,0 +1,146 @@
|
||||
/* FreeBSD/ARM specific low level interface, for the remote server for GDB.
|
||||
Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004
|
||||
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 2 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, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include "server.h"
|
||||
#include "fbsd-low.h"
|
||||
|
||||
#ifdef HAVE_SYS_REG_H
|
||||
#include <sys/reg.h>
|
||||
#endif
|
||||
|
||||
#include <sys/procfs.h>
|
||||
#include <sys/ptrace.h>
|
||||
|
||||
#define arm_num_regs 26
|
||||
|
||||
static int arm_regmap[] = {
|
||||
0, 4, 8, 12, 16, 20, 24, 28,
|
||||
32, 36, 40, 44, 48, 52, 56, 60,
|
||||
-1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
64
|
||||
};
|
||||
|
||||
static int
|
||||
arm_cannot_store_register (int regno)
|
||||
{
|
||||
return (regno >= arm_num_regs);
|
||||
}
|
||||
|
||||
static int
|
||||
arm_cannot_fetch_register (int regno)
|
||||
{
|
||||
return (regno >= arm_num_regs);
|
||||
}
|
||||
|
||||
extern int debug_threads;
|
||||
|
||||
static CORE_ADDR
|
||||
arm_get_pc ()
|
||||
{
|
||||
unsigned long pc;
|
||||
collect_register_by_name ("pc", &pc);
|
||||
if (debug_threads)
|
||||
fprintf (stderr, "stop pc is %08lx\n", pc);
|
||||
return pc;
|
||||
}
|
||||
|
||||
static void
|
||||
arm_set_pc (CORE_ADDR pc)
|
||||
{
|
||||
unsigned long newpc = pc;
|
||||
supply_register_by_name ("pc", &newpc);
|
||||
}
|
||||
|
||||
/* Correct in either endianness. We do not support Thumb yet. */
|
||||
static const unsigned long arm_breakpoint = 0xef9f0001;
|
||||
#define arm_breakpoint_len 4
|
||||
|
||||
static int
|
||||
arm_breakpoint_at (CORE_ADDR where)
|
||||
{
|
||||
unsigned long insn;
|
||||
|
||||
(*the_target->read_memory) (where, (char *) &insn, 4);
|
||||
if (insn == arm_breakpoint)
|
||||
return 1;
|
||||
|
||||
/* If necessary, recognize more trap instructions here. GDB only uses the
|
||||
one. */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* We only place breakpoints in empty marker functions, and thread locking
|
||||
is outside of the function. So rather than importing software single-step,
|
||||
we can just run until exit. */
|
||||
static CORE_ADDR
|
||||
arm_reinsert_addr ()
|
||||
{
|
||||
unsigned long pc;
|
||||
collect_register_by_name ("lr", &pc);
|
||||
return pc;
|
||||
}
|
||||
|
||||
static void
|
||||
arm_fill_gregset (void *buf)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < arm_num_regs; i++)
|
||||
if (arm_regmap[i] != -1)
|
||||
collect_register (i, ((char *) buf) + arm_regmap[i]);
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
arm_store_gregset (const void *buf)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < arm_num_regs; i++)
|
||||
if (arm_regmap[i] != -1)
|
||||
supply_register (i, ((char *) buf) + arm_regmap[i]);
|
||||
|
||||
}
|
||||
|
||||
|
||||
struct regset_info target_regsets[] = {
|
||||
{PT_GETREGS, PT_SETREGS, sizeof (struct reg),
|
||||
GENERAL_REGS,
|
||||
arm_fill_gregset, arm_store_gregset },
|
||||
{ 0, 0, -1, -1, NULL, NULL }
|
||||
};
|
||||
|
||||
struct fbsd_target_ops the_low_target = {
|
||||
arm_num_regs,
|
||||
arm_regmap,
|
||||
arm_cannot_fetch_register,
|
||||
arm_cannot_store_register,
|
||||
arm_get_pc,
|
||||
arm_set_pc,
|
||||
(const char *) &arm_breakpoint,
|
||||
arm_breakpoint_len,
|
||||
arm_reinsert_addr,
|
||||
0,
|
||||
arm_breakpoint_at,
|
||||
};
|
||||
68
gnu/usr.bin/gdb/gdbserver/reg-arm.c
Normal file
68
gnu/usr.bin/gdb/gdbserver/reg-arm.c
Normal file
@ -0,0 +1,68 @@
|
||||
/* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
|
||||
|
||||
/* A register protocol for GDB, the GNU debugger.
|
||||
Copyright 2001, 2002 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 2 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, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
/* This file was created with the aid of ``regdat.sh'' and ``reg-arm.dat''. */
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include "regdef.h"
|
||||
#include "regcache.h"
|
||||
|
||||
struct reg regs_arm[] = {
|
||||
{ "r0", 0, 32 },
|
||||
{ "r1", 32, 32 },
|
||||
{ "r2", 64, 32 },
|
||||
{ "r3", 96, 32 },
|
||||
{ "r4", 128, 32 },
|
||||
{ "r5", 160, 32 },
|
||||
{ "r6", 192, 32 },
|
||||
{ "r7", 224, 32 },
|
||||
{ "r8", 256, 32 },
|
||||
{ "r9", 288, 32 },
|
||||
{ "r10", 320, 32 },
|
||||
{ "r11", 352, 32 },
|
||||
{ "r12", 384, 32 },
|
||||
{ "sp", 416, 32 },
|
||||
{ "lr", 448, 32 },
|
||||
{ "pc", 480, 32 },
|
||||
{ "f0", 512, 96 },
|
||||
{ "f1", 608, 96 },
|
||||
{ "f2", 704, 96 },
|
||||
{ "f3", 800, 96 },
|
||||
{ "f4", 896, 96 },
|
||||
{ "f5", 992, 96 },
|
||||
{ "f6", 1088, 96 },
|
||||
{ "f7", 1184, 96 },
|
||||
{ "fps", 1280, 32 },
|
||||
{ "cpsr", 1312, 32 },
|
||||
};
|
||||
|
||||
const char *expedite_regs_arm[] = { "r11", "sp", "pc", 0 };
|
||||
|
||||
void
|
||||
init_registers ()
|
||||
{
|
||||
set_register_cache (regs_arm,
|
||||
sizeof (regs_arm) / sizeof (regs_arm[0]));
|
||||
gdbserver_expedite_regs = expedite_regs_arm;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user