mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 12:03:41 +08:00
2013-05-06 Sandra Loosemore <sandra@codesourcery.com>
Andrew Jenner <andrew@codesourcery.com> gdb/gdbserver/ * Makefile.in (SFILES): Add linux-nios2-low.c. (clean): Add action to delete nios2-linux.c. (nios2-linux.c): New rule. * configure.srv: Add nios2*-*-linux*. * linux-nios2-low.c: New.
This commit is contained in:
Sandra Loosemore
parent
a1217d97c4
commit
68f5f83833
@ -1,3 +1,12 @@
|
||||
2013-05-06 Sandra Loosemore <sandra@codesourcery.com>
|
||||
Andrew Jenner <andrew@codesourcery.com>
|
||||
|
||||
* Makefile.in (SFILES): Add linux-nios2-low.c.
|
||||
(clean): Add action to delete nios2-linux.c.
|
||||
(nios2-linux.c): New rule.
|
||||
* configure.srv: Add nios2*-*-linux*.
|
||||
* linux-nios2-low.c: New.
|
||||
|
||||
2013-05-03 Hafiz Abid Qadeer <abidh@codesourcery.com>
|
||||
|
||||
* tracepoint.c (cmd_qtinit): Call 'stop_tracing'.
|
||||
|
||||
@ -143,6 +143,7 @@ SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c $(srcdir)/dll.c \
|
||||
$(srcdir)/linux-ia64-low.c $(srcdir)/linux-low.c \
|
||||
$(srcdir)/linux-m32r-low.c \
|
||||
$(srcdir)/linux-m68k-low.c $(srcdir)/linux-mips-low.c \
|
||||
$(srcdir)/linux-nios2-low.c \
|
||||
$(srcdir)/linux-ppc-low.c \
|
||||
$(srcdir)/linux-s390-low.c \
|
||||
$(srcdir)/linux-sh-low.c $(srcdir)/linux-sparc-low.c \
|
||||
@ -323,6 +324,7 @@ clean:
|
||||
rm -f arm-with-iwmmxt.c
|
||||
rm -f arm-with-vfpv2.c arm-with-vfpv3.c arm-with-neon.c
|
||||
rm -f mips-linux.c mips64-linux.c
|
||||
rm -f nios2-linux.c
|
||||
rm -f powerpc-32.c powerpc-32l.c powerpc-64l.c powerpc-e500l.c
|
||||
rm -f powerpc-altivec32l.c powerpc-cell32l.c powerpc-vsx32l.c
|
||||
rm -f powerpc-altivec64l.c powerpc-cell64l.c powerpc-vsx64l.c
|
||||
@ -613,6 +615,8 @@ mips64-linux.c : $(srcdir)/../regformats/mips64-linux.dat $(regdat_sh)
|
||||
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/mips64-linux.dat mips64-linux.c
|
||||
mips64-dsp-linux.c : $(srcdir)/../regformats/mips64-dsp-linux.dat $(regdat_sh)
|
||||
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/mips64-dsp-linux.dat mips64-dsp-linux.c
|
||||
nios2-linux.c : $(srcdir)/../regformats/nios2-linux.dat $(regdat_sh)
|
||||
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/nios2-linux.dat nios2-linux.c
|
||||
powerpc-32.c : $(srcdir)/../regformats/rs6000/powerpc-32.dat $(regdat_sh)
|
||||
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/rs6000/powerpc-32.dat powerpc-32.c
|
||||
powerpc-32l.c : $(srcdir)/../regformats/rs6000/powerpc-32l.dat $(regdat_sh)
|
||||
|
||||
@ -201,6 +201,15 @@ case "${target}" in
|
||||
srv_linux_usrregs=yes
|
||||
srv_linux_thread_db=yes
|
||||
;;
|
||||
nios2*-*-linux*) srv_regobj="nios2-linux.o"
|
||||
srv_tgtobj="linux-low.o linux-osdata.o linux-nios2-low.o linux-procfs.o"
|
||||
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
|
||||
srv_xmlfiles="nios2-linux.xml"
|
||||
srv_xmlfiles="${srv_xmlfiles} nios2-cpu.xml"
|
||||
srv_linux_regsets=yes
|
||||
srv_linux_usrregs=yes
|
||||
srv_linux_thread_db=yes
|
||||
;;
|
||||
powerpc*-*-linux*) srv_regobj="powerpc-32l.o"
|
||||
srv_regobj="${srv_regobj} powerpc-altivec32l.o"
|
||||
srv_regobj="${srv_regobj} powerpc-cell32l.o"
|
||||
|
||||
234
gdb/gdbserver/linux-nios2-low.c
Normal file
234
gdb/gdbserver/linux-nios2-low.c
Normal file
@ -0,0 +1,234 @@
|
||||
/* GNU/Linux/Nios II specific low level interface, for the remote server for
|
||||
GDB.
|
||||
Copyright (C) 2008-2013 Free Software Foundation, Inc.
|
||||
|
||||
Contributed by Mentor Graphics, 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 "server.h"
|
||||
#include "linux-low.h"
|
||||
#include <sys/ptrace.h>
|
||||
#include <endian.h>
|
||||
#include "gdb_proc_service.h"
|
||||
#include <asm/ptrace.h>
|
||||
|
||||
#ifndef PTRACE_GET_THREAD_AREA
|
||||
#define PTRACE_GET_THREAD_AREA 25
|
||||
#endif
|
||||
|
||||
/* The following definition must agree with the number of registers
|
||||
defined in "struct user_regs" in GLIBC
|
||||
(ports/sysdeps/unix/sysv/linux/nios2/sys/user.h), and also with
|
||||
NIOS2_NUM_REGS in GDB proper. */
|
||||
|
||||
#define nios2_num_regs 49
|
||||
|
||||
/* Defined in auto-generated file nios2-linux.c. */
|
||||
|
||||
void init_registers_nios2_linux (void);
|
||||
|
||||
/* This union is used to convert between int and byte buffer
|
||||
representations of register contents. */
|
||||
|
||||
union nios2_register
|
||||
{
|
||||
unsigned char buf[4];
|
||||
int reg32;
|
||||
};
|
||||
|
||||
/* Return the ptrace ``address'' of register REGNO. */
|
||||
|
||||
static int nios2_regmap[] = {
|
||||
-1, 1, 2, 3, 4, 5, 6, 7,
|
||||
8, 9, 10, 11, 12, 13, 14, 15,
|
||||
16, 17, 18, 19, 20, 21, 22, 23,
|
||||
24, 25, 26, 27, 28, 29, 30, 31,
|
||||
32, 33, 34, 35, 36, 37, 38, 39,
|
||||
40, 41, 42, 43, 44, 45, 46, 47,
|
||||
48,
|
||||
0
|
||||
};
|
||||
|
||||
/* Implement the arch_setup linux_target_ops method. */
|
||||
|
||||
static void
|
||||
nios2_arch_setup (void)
|
||||
{
|
||||
init_registers_nios2_linux ();
|
||||
}
|
||||
|
||||
/* Implement the cannot_fetch_register linux_target_ops method. */
|
||||
|
||||
static int
|
||||
nios2_cannot_fetch_register (int regno)
|
||||
{
|
||||
if (nios2_regmap[regno] == -1)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Implement the cannot_store_register linux_target_ops method. */
|
||||
|
||||
static int
|
||||
nios2_cannot_store_register (int regno)
|
||||
{
|
||||
if (nios2_regmap[regno] == -1)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Implement the get_pc linux_target_ops method. */
|
||||
|
||||
static CORE_ADDR
|
||||
nios2_get_pc (struct regcache *regcache)
|
||||
{
|
||||
union nios2_register pc;
|
||||
|
||||
collect_register_by_name (regcache, "pc", pc.buf);
|
||||
return pc.reg32;
|
||||
}
|
||||
|
||||
/* Implement the set_pc linux_target_ops method. */
|
||||
|
||||
static void
|
||||
nios2_set_pc (struct regcache *regcache, CORE_ADDR pc)
|
||||
{
|
||||
union nios2_register newpc;
|
||||
|
||||
newpc.reg32 = pc;
|
||||
supply_register_by_name (regcache, "pc", newpc.buf);
|
||||
}
|
||||
|
||||
/* Breakpoint support. */
|
||||
|
||||
static const unsigned int nios2_breakpoint = 0x003b6ffa;
|
||||
#define nios2_breakpoint_len 4
|
||||
|
||||
/* Implement the breakpoint_reinsert_addr linux_target_ops method. */
|
||||
|
||||
static CORE_ADDR
|
||||
nios2_reinsert_addr (void)
|
||||
{
|
||||
union nios2_register ra;
|
||||
struct regcache *regcache = get_thread_regcache (current_inferior, 1);
|
||||
|
||||
collect_register_by_name (regcache, "ra", ra.buf);
|
||||
return ra.reg32;
|
||||
}
|
||||
|
||||
/* Implement the breakpoint_at linux_target_ops method. */
|
||||
|
||||
static int
|
||||
nios2_breakpoint_at (CORE_ADDR where)
|
||||
{
|
||||
unsigned int insn;
|
||||
|
||||
(*the_target->read_memory) (where, (unsigned char *) &insn, 4);
|
||||
if (insn == nios2_breakpoint)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Fetch the thread-local storage pointer for libthread_db. */
|
||||
|
||||
ps_err_e
|
||||
ps_get_thread_area (const struct ps_prochandle *ph,
|
||||
lwpid_t lwpid, int idx, void **base)
|
||||
{
|
||||
if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0)
|
||||
return PS_ERR;
|
||||
|
||||
/* IDX is the bias from the thread pointer to the beginning of the
|
||||
thread descriptor. It has to be subtracted due to implementation
|
||||
quirks in libthread_db. */
|
||||
*base = (void *) ((char *) *base - idx);
|
||||
|
||||
return PS_OK;
|
||||
}
|
||||
|
||||
#ifdef HAVE_PTRACE_GETREGS
|
||||
|
||||
/* Helper functions to collect/supply a single register REGNO. */
|
||||
|
||||
static void
|
||||
nios2_collect_register (struct regcache *regcache, int regno,
|
||||
union nios2_register *reg)
|
||||
{
|
||||
union nios2_register tmp_reg;
|
||||
|
||||
collect_register (regcache, regno, &tmp_reg.reg32);
|
||||
reg->reg32 = tmp_reg.reg32;
|
||||
}
|
||||
|
||||
static void
|
||||
nios2_supply_register (struct regcache *regcache, int regno,
|
||||
const union nios2_register *reg)
|
||||
{
|
||||
supply_register (regcache, regno, reg->buf);
|
||||
}
|
||||
|
||||
/* We have only a single register set on Nios II. */
|
||||
|
||||
static void
|
||||
nios2_fill_gregset (struct regcache *regcache, void *buf)
|
||||
{
|
||||
union nios2_register *regset = buf;
|
||||
int i;
|
||||
|
||||
for (i = 1; i < nios2_num_regs; i++)
|
||||
nios2_collect_register (regcache, i, regset + i);
|
||||
}
|
||||
|
||||
static void
|
||||
nios2_store_gregset (struct regcache *regcache, const void *buf)
|
||||
{
|
||||
const union nios2_register *regset = buf;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < nios2_num_regs; i++)
|
||||
nios2_supply_register (regcache, i, regset + i);
|
||||
}
|
||||
#endif /* HAVE_PTRACE_GETREGS */
|
||||
|
||||
struct regset_info target_regsets[] =
|
||||
{
|
||||
#ifdef HAVE_PTRACE_GETREGS
|
||||
{ PTRACE_GETREGS, PTRACE_SETREGS, 0, nios2_num_regs * 4, GENERAL_REGS,
|
||||
nios2_fill_gregset, nios2_store_gregset },
|
||||
#endif /* HAVE_PTRACE_GETREGS */
|
||||
{ 0, 0, 0, -1, -1, NULL, NULL }
|
||||
};
|
||||
|
||||
struct linux_target_ops the_low_target =
|
||||
{
|
||||
nios2_arch_setup,
|
||||
nios2_num_regs,
|
||||
nios2_regmap,
|
||||
NULL,
|
||||
nios2_cannot_fetch_register,
|
||||
nios2_cannot_store_register,
|
||||
NULL,
|
||||
nios2_get_pc,
|
||||
nios2_set_pc,
|
||||
(const unsigned char *) &nios2_breakpoint,
|
||||
nios2_breakpoint_len,
|
||||
nios2_reinsert_addr,
|
||||
0,
|
||||
nios2_breakpoint_at,
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user