/* GNU/Linux/MIPS specific low level interface, for the remote server for GDB.
- Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2005, 2006, 2007
- Free Software Foundation, Inc.
+ Copyright (C) 1995-1996, 1998-2002, 2005-2012 Free Software
+ Foundation, Inc.
This file is part of GDB.
#include "gdb_proc_service.h"
+/* Defined in auto-generated file mips-linux.c. */
+void init_registers_mips_linux (void);
+/* Defined in auto-generated file mips-dsp-linux.c. */
+void init_registers_mips_dsp_linux (void);
+/* Defined in auto-generated file mips64-linux.c. */
+void init_registers_mips64_linux (void);
+/* Defined in auto-generated file mips64-dsp-linux.c. */
+void init_registers_mips64_dsp_linux (void);
+
+#ifdef __mips64
+#define init_registers_mips_linux init_registers_mips64_linux
+#define init_registers_mips_dsp_linux init_registers_mips64_dsp_linux
+#endif
+
#ifndef PTRACE_GET_THREAD_AREA
#define PTRACE_GET_THREAD_AREA 25
#endif
#endif
#define mips_num_regs 73
+#define mips_dsp_num_regs 80
#include <asm/ptrace.h>
+#ifndef DSP_BASE
+#define DSP_BASE 71
+#define DSP_CONTROL 77
+#endif
+
union mips_register
{
unsigned char buf[8];
/* Return the ptrace ``address'' of register REGNO. */
-static int mips_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,
+#define mips_base_regs \
+ -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, \
+ \
+ -1, MMLO, MMHI, BADVADDR, CAUSE, PC, \
+ \
+ FPR_BASE, FPR_BASE + 1, FPR_BASE + 2, FPR_BASE + 3, \
+ FPR_BASE + 4, FPR_BASE + 5, FPR_BASE + 6, FPR_BASE + 7, \
+ FPR_BASE + 8, FPR_BASE + 9, FPR_BASE + 10, FPR_BASE + 11, \
+ FPR_BASE + 12, FPR_BASE + 13, FPR_BASE + 14, FPR_BASE + 15, \
+ FPR_BASE + 16, FPR_BASE + 17, FPR_BASE + 18, FPR_BASE + 19, \
+ FPR_BASE + 20, FPR_BASE + 21, FPR_BASE + 22, FPR_BASE + 23, \
+ FPR_BASE + 24, FPR_BASE + 25, FPR_BASE + 26, FPR_BASE + 27, \
+ FPR_BASE + 28, FPR_BASE + 29, FPR_BASE + 30, FPR_BASE + 31, \
+ FPC_CSR, FPC_EIR
+
+#define mips_dsp_regs \
+ DSP_BASE, DSP_BASE + 1, DSP_BASE + 2, DSP_BASE + 3, \
+ DSP_BASE + 4, DSP_BASE + 5, \
+ DSP_CONTROL
+
+static int mips_regmap[mips_num_regs] = {
+ mips_base_regs,
+ 0
+};
- -1, MMLO, MMHI, BADVADDR, CAUSE, PC,
+static int mips_dsp_regmap[mips_dsp_num_regs] = {
+ mips_base_regs,
+ mips_dsp_regs,
+ 0
+};
- FPR_BASE, FPR_BASE + 1, FPR_BASE + 2, FPR_BASE + 3,
- FPR_BASE + 4, FPR_BASE + 5, FPR_BASE + 6, FPR_BASE + 7,
- FPR_BASE + 8, FPR_BASE + 8, FPR_BASE + 10, FPR_BASE + 11,
- FPR_BASE + 12, FPR_BASE + 13, FPR_BASE + 14, FPR_BASE + 15,
- FPR_BASE + 16, FPR_BASE + 17, FPR_BASE + 18, FPR_BASE + 19,
- FPR_BASE + 20, FPR_BASE + 21, FPR_BASE + 22, FPR_BASE + 23,
- FPR_BASE + 24, FPR_BASE + 25, FPR_BASE + 26, FPR_BASE + 27,
- FPR_BASE + 28, FPR_BASE + 29, FPR_BASE + 30, FPR_BASE + 31,
- FPC_CSR, FPC_EIR,
+/* DSP registers are not in any regset and can only be accessed
+ individually. */
- 0
+static unsigned char mips_dsp_regset_bitmap[(mips_dsp_num_regs + 7) / 8] = {
+ 0xfe, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff, 0x80
};
+/* Try peeking at an arbitrarily chosen DSP register and pick the available
+ user register set accordingly. */
+
+static void
+mips_arch_setup (void)
+{
+ static void (*init_registers) (void);
+
+ gdb_assert (current_inferior);
+
+ if (init_registers == NULL)
+ {
+ int pid = lwpid_of (get_thread_lwp (current_inferior));
+
+ ptrace (PTRACE_PEEKUSER, pid, DSP_CONTROL, 0);
+ switch (errno)
+ {
+ case 0:
+ the_low_target.num_regs = mips_dsp_num_regs;
+ the_low_target.regmap = mips_dsp_regmap;
+ the_low_target.regset_bitmap = mips_dsp_regset_bitmap;
+ init_registers = init_registers_mips_dsp_linux;
+ break;
+ case EIO:
+ the_low_target.num_regs = mips_num_regs;
+ the_low_target.regmap = mips_regmap;
+ the_low_target.regset_bitmap = NULL;
+ init_registers = init_registers_mips_linux;
+ break;
+ default:
+ perror_with_name ("ptrace");
+ break;
+ }
+ }
+ init_registers ();
+}
+
/* From mips-linux-nat.c. */
/* Pseudo registers can not be read. ptrace does not provide a way to
static int
mips_cannot_fetch_register (int regno)
{
- if (mips_regmap[regno] == -1)
+ if (the_low_target.regmap[regno] == -1)
return 1;
if (find_regno ("r0") == regno)
static int
mips_cannot_store_register (int regno)
{
- if (mips_regmap[regno] == -1)
+ if (the_low_target.regmap[regno] == -1)
return 1;
if (find_regno ("r0") == regno)
}
static CORE_ADDR
-mips_get_pc ()
+mips_get_pc (struct regcache *regcache)
{
union mips_register pc;
- collect_register_by_name ("pc", pc.buf);
+ collect_register_by_name (regcache, "pc", pc.buf);
return register_size (0) == 4 ? pc.reg32 : pc.reg64;
}
static void
-mips_set_pc (CORE_ADDR pc)
+mips_set_pc (struct regcache *regcache, CORE_ADDR pc)
{
union mips_register newpc;
if (register_size (0) == 4)
else
newpc.reg64 = pc;
- supply_register_by_name ("pc", newpc.buf);
+ supply_register_by_name (regcache, "pc", newpc.buf);
}
/* Correct in either endianness. */
is outside of the function. So rather than importing software single-step,
we can just run until exit. */
static CORE_ADDR
-mips_reinsert_addr ()
+mips_reinsert_addr (void)
{
+ struct regcache *regcache = get_thread_regcache (current_inferior, 1);
union mips_register ra;
- collect_register_by_name ("r31", ra.buf);
+ collect_register_by_name (regcache, "r31", ra.buf);
return register_size (0) == 4 ? ra.reg32 : ra.reg64;
}
ps_err_e
ps_get_thread_area (const struct ps_prochandle *ph,
- lwpid_t lwpid, int idx, void **base)
+ lwpid_t lwpid, int idx, void **base)
{
if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0)
return PS_ERR;
#ifdef HAVE_PTRACE_GETREGS
static void
-mips_collect_register (int use_64bit, int regno, union mips_register *reg)
+mips_collect_register (struct regcache *regcache,
+ int use_64bit, int regno, union mips_register *reg)
{
union mips_register tmp_reg;
if (use_64bit)
{
- collect_register (regno, &tmp_reg.reg64);
+ collect_register (regcache, regno, &tmp_reg.reg64);
*reg = tmp_reg;
}
else
{
- collect_register (regno, &tmp_reg.reg32);
+ collect_register (regcache, regno, &tmp_reg.reg32);
reg->reg64 = tmp_reg.reg32;
}
}
static void
-mips_supply_register (int use_64bit, int regno, const union mips_register *reg)
+mips_supply_register (struct regcache *regcache,
+ int use_64bit, int regno, const union mips_register *reg)
{
int offset = 0;
if (__BYTE_ORDER == __BIG_ENDIAN && !use_64bit)
offset = 4;
- supply_register (regno, reg->buf + offset);
+ supply_register (regcache, regno, reg->buf + offset);
}
static void
-mips_collect_register_32bit (int use_64bit, int regno, unsigned char *buf)
+mips_collect_register_32bit (struct regcache *regcache,
+ int use_64bit, int regno, unsigned char *buf)
{
union mips_register tmp_reg;
int reg32;
- mips_collect_register (use_64bit, regno, &tmp_reg);
+ mips_collect_register (regcache, use_64bit, regno, &tmp_reg);
reg32 = tmp_reg.reg64;
memcpy (buf, ®32, 4);
}
static void
-mips_supply_register_32bit (int use_64bit, int regno, const unsigned char *buf)
+mips_supply_register_32bit (struct regcache *regcache,
+ int use_64bit, int regno, const unsigned char *buf)
{
union mips_register tmp_reg;
int reg32;
memcpy (®32, buf, 4);
tmp_reg.reg64 = reg32;
- mips_supply_register (use_64bit, regno, &tmp_reg);
+ mips_supply_register (regcache, use_64bit, regno, &tmp_reg);
}
static void
-mips_fill_gregset (void *buf)
+mips_fill_gregset (struct regcache *regcache, void *buf)
{
union mips_register *regset = buf;
int i, use_64bit;
use_64bit = (register_size (0) == 8);
for (i = 1; i < 32; i++)
- mips_collect_register (use_64bit, i, regset + i);
-
- mips_collect_register (use_64bit, find_regno ("lo"), regset + 32);
- mips_collect_register (use_64bit, find_regno ("hi"), regset + 33);
- mips_collect_register (use_64bit, find_regno ("pc"), regset + 34);
- mips_collect_register (use_64bit, find_regno ("badvaddr"), regset + 35);
- mips_collect_register (use_64bit, find_regno ("status"), regset + 36);
- mips_collect_register (use_64bit, find_regno ("cause"), regset + 37);
-
- mips_collect_register (use_64bit, find_regno ("restart"), regset + 0);
+ mips_collect_register (regcache, use_64bit, i, regset + i);
+
+ mips_collect_register (regcache, use_64bit,
+ find_regno ("lo"), regset + 32);
+ mips_collect_register (regcache, use_64bit,
+ find_regno ("hi"), regset + 33);
+ mips_collect_register (regcache, use_64bit,
+ find_regno ("pc"), regset + 34);
+ mips_collect_register (regcache, use_64bit,
+ find_regno ("badvaddr"), regset + 35);
+ mips_collect_register (regcache, use_64bit,
+ find_regno ("status"), regset + 36);
+ mips_collect_register (regcache, use_64bit,
+ find_regno ("cause"), regset + 37);
+
+ mips_collect_register (regcache, use_64bit,
+ find_regno ("restart"), regset + 0);
}
static void
-mips_store_gregset (const void *buf)
+mips_store_gregset (struct regcache *regcache, const void *buf)
{
const union mips_register *regset = buf;
int i, use_64bit;
use_64bit = (register_size (0) == 8);
for (i = 0; i < 32; i++)
- mips_supply_register (use_64bit, i, regset + i);
-
- mips_supply_register (use_64bit, find_regno ("lo"), regset + 32);
- mips_supply_register (use_64bit, find_regno ("hi"), regset + 33);
- mips_supply_register (use_64bit, find_regno ("pc"), regset + 34);
- mips_supply_register (use_64bit, find_regno ("badvaddr"), regset + 35);
- mips_supply_register (use_64bit, find_regno ("status"), regset + 36);
- mips_supply_register (use_64bit, find_regno ("cause"), regset + 37);
-
- mips_supply_register (use_64bit, find_regno ("restart"), regset + 0);
+ mips_supply_register (regcache, use_64bit, i, regset + i);
+
+ mips_supply_register (regcache, use_64bit, find_regno ("lo"), regset + 32);
+ mips_supply_register (regcache, use_64bit, find_regno ("hi"), regset + 33);
+ mips_supply_register (regcache, use_64bit, find_regno ("pc"), regset + 34);
+ mips_supply_register (regcache, use_64bit,
+ find_regno ("badvaddr"), regset + 35);
+ mips_supply_register (regcache, use_64bit,
+ find_regno ("status"), regset + 36);
+ mips_supply_register (regcache, use_64bit,
+ find_regno ("cause"), regset + 37);
+
+ mips_supply_register (regcache, use_64bit,
+ find_regno ("restart"), regset + 0);
}
static void
-mips_fill_fpregset (void *buf)
+mips_fill_fpregset (struct regcache *regcache, void *buf)
{
union mips_register *regset = buf;
int i, use_64bit, first_fp, big_endian;
/* See GDB for a discussion of this peculiar layout. */
for (i = 0; i < 32; i++)
if (use_64bit)
- collect_register (first_fp + i, regset[i].buf);
+ collect_register (regcache, first_fp + i, regset[i].buf);
else
- collect_register (first_fp + i,
+ collect_register (regcache, first_fp + i,
regset[i & ~1].buf + 4 * (big_endian != (i & 1)));
- mips_collect_register_32bit (use_64bit, find_regno ("fcsr"), regset[32].buf);
- mips_collect_register_32bit (use_64bit, find_regno ("fir"),
+ mips_collect_register_32bit (regcache, use_64bit,
+ find_regno ("fcsr"), regset[32].buf);
+ mips_collect_register_32bit (regcache, use_64bit, find_regno ("fir"),
regset[32].buf + 4);
}
static void
-mips_store_fpregset (const void *buf)
+mips_store_fpregset (struct regcache *regcache, const void *buf)
{
const union mips_register *regset = buf;
int i, use_64bit, first_fp, big_endian;
/* See GDB for a discussion of this peculiar layout. */
for (i = 0; i < 32; i++)
if (use_64bit)
- supply_register (first_fp + i, regset[i].buf);
+ supply_register (regcache, first_fp + i, regset[i].buf);
else
- supply_register (first_fp + i,
+ supply_register (regcache, first_fp + i,
regset[i & ~1].buf + 4 * (big_endian != (i & 1)));
- mips_supply_register_32bit (use_64bit, find_regno ("fcsr"), regset[32].buf);
- mips_supply_register_32bit (use_64bit, find_regno ("fir"),
+ mips_supply_register_32bit (regcache, use_64bit,
+ find_regno ("fcsr"), regset[32].buf);
+ mips_supply_register_32bit (regcache, use_64bit, find_regno ("fir"),
regset[32].buf + 4);
}
#endif /* HAVE_PTRACE_GETREGS */
struct regset_info target_regsets[] = {
#ifdef HAVE_PTRACE_GETREGS
- { PTRACE_GETREGS, PTRACE_SETREGS, 38 * 8, GENERAL_REGS,
+ { PTRACE_GETREGS, PTRACE_SETREGS, 0, 38 * 8, GENERAL_REGS,
mips_fill_gregset, mips_store_gregset },
- { PTRACE_GETFPREGS, PTRACE_SETFPREGS, 33 * 8, FP_REGS,
+ { PTRACE_GETFPREGS, PTRACE_SETFPREGS, 0, 33 * 8, FP_REGS,
mips_fill_fpregset, mips_store_fpregset },
#endif /* HAVE_PTRACE_GETREGS */
- { 0, 0, -1, -1, NULL, NULL }
+ { 0, 0, 0, -1, -1, NULL, NULL }
};
struct linux_target_ops the_low_target = {
- mips_num_regs,
- mips_regmap,
+ mips_arch_setup,
+ -1,
+ NULL,
+ NULL,
mips_cannot_fetch_register,
mips_cannot_store_register,
+ NULL, /* fetch_register */
mips_get_pc,
mips_set_pc,
(const unsigned char *) &mips_breakpoint,
projects / deliverable / binutils-gdb.git / blobdiff