/* Low level Alpha interface, for GDB when running native.
- Copyright 1993, 1995, 1996, 1998, 1999, 2000, 2001
- Free Software Foundation, Inc.
+ Copyright (C) 1993, 1995-1996, 1998-2001, 2003, 2007-2012 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
+ 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,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "gdb_string.h"
#include "inferior.h"
#include "gdbcore.h"
#include "target.h"
+#include "procfs.h"
#include "regcache.h"
#include "alpha-tdep.h"
#include <sys/ptrace.h>
-#ifdef __linux__
-#include <asm/reg.h>
-#include <alpha/ptrace.h>
-#else
#include <alpha/coreregs.h>
-#endif
#include <sys/user.h>
-/* Prototypes for local functions. */
-
-static void fetch_osf_core_registers (char *, unsigned, int, CORE_ADDR);
-static void fetch_elf_core_registers (char *, unsigned, int, CORE_ADDR);
/* Extract the register values out of the core file and store
- them where `read_register' will find them.
+ them into REGCACHE.
CORE_REG_SECT points to the register values themselves, read into memory.
CORE_REG_SIZE is the size of that area.
REG_ADDR is the offset from u.u_ar0 to the register values relative to
core_reg_sect. This is used with old-fashioned core files to
locate the registers in a large upage-plus-stack ".reg" section.
- Original upage address X is at location core_reg_sect+x+reg_addr.
- */
+ Original upage address X is at location core_reg_sect+x+reg_addr. */
static void
-fetch_osf_core_registers (char *core_reg_sect, unsigned core_reg_size,
+fetch_osf_core_registers (struct regcache *regcache,
+ char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR reg_addr)
{
- register int regno;
- register int addr;
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ int regno;
+ int addr;
int bad_reg = -1;
/* Table to map a gdb regnum to an index in the core register
OSF/1.2 core files. OSF5 uses different names for the register
enum list, need to handle two cases. The actual values are the
same. */
- static int core_reg_mapping[ALPHA_NUM_REGS] =
+ static int const core_reg_mapping[ALPHA_NUM_REGS] =
{
#ifdef NCF_REGS
#define EFL NCF_REGS
CF_T7, CF_S0, CF_S1, CF_S2, CF_S3, CF_S4, CF_S5, CF_S6,
CF_A0, CF_A1, CF_A2, CF_A3, CF_A4, CF_A5, CF_T8, CF_T9,
CF_T10, CF_T11, CF_RA, CF_T12, CF_AT, CF_GP, CF_SP, -1,
- EFL + 0, EFL + 1, EFL + 2, EFL + 3, EFL + 4, EFL + 5, EFL + 6, EFL + 7,
- EFL + 8, EFL + 9, EFL + 10, EFL + 11, EFL + 12, EFL + 13, EFL + 14, EFL + 15,
- EFL + 16, EFL + 17, EFL + 18, EFL + 19, EFL + 20, EFL + 21, EFL + 22, EFL + 23,
- EFL + 24, EFL + 25, EFL + 26, EFL + 27, EFL + 28, EFL + 29, EFL + 30, EFL + 31,
- CF_PC, -1
+ EFL + 0, EFL + 1, EFL + 2, EFL + 3,
+ EFL + 4, EFL + 5, EFL + 6, EFL + 7,
+ EFL + 8, EFL + 9, EFL + 10, EFL + 11,
+ EFL + 12, EFL + 13, EFL + 14, EFL + 15,
+ EFL + 16, EFL + 17, EFL + 18, EFL + 19,
+ EFL + 20, EFL + 21, EFL + 22, EFL + 23,
+ EFL + 24, EFL + 25, EFL + 26, EFL + 27,
+ EFL + 28, EFL + 29, EFL + 30, EFL + 31,
+ CF_PC, -1, -1
#else
#define EFL (EF_SIZE / 8)
EF_V0, EF_T0, EF_T1, EF_T2, EF_T3, EF_T4, EF_T5, EF_T6,
EF_T7, EF_S0, EF_S1, EF_S2, EF_S3, EF_S4, EF_S5, EF_S6,
EF_A0, EF_A1, EF_A2, EF_A3, EF_A4, EF_A5, EF_T8, EF_T9,
EF_T10, EF_T11, EF_RA, EF_T12, EF_AT, EF_GP, EF_SP, -1,
- EFL + 0, EFL + 1, EFL + 2, EFL + 3, EFL + 4, EFL + 5, EFL + 6, EFL + 7,
- EFL + 8, EFL + 9, EFL + 10, EFL + 11, EFL + 12, EFL + 13, EFL + 14, EFL + 15,
- EFL + 16, EFL + 17, EFL + 18, EFL + 19, EFL + 20, EFL + 21, EFL + 22, EFL + 23,
- EFL + 24, EFL + 25, EFL + 26, EFL + 27, EFL + 28, EFL + 29, EFL + 30, EFL + 31,
- EF_PC, -1
+ EFL + 0, EFL + 1, EFL + 2, EFL + 3,
+ EFL + 4, EFL + 5, EFL + 6, EFL + 7,
+ EFL + 8, EFL + 9, EFL + 10, EFL + 11,
+ EFL + 12, EFL + 13, EFL + 14, EFL + 15,
+ EFL + 16, EFL + 17, EFL + 18, EFL + 19,
+ EFL + 20, EFL + 21, EFL + 22, EFL + 23,
+ EFL + 24, EFL + 25, EFL + 26, EFL + 27,
+ EFL + 28, EFL + 29, EFL + 30, EFL + 31,
+ EF_PC, -1, -1
#endif
};
- static char zerobuf[ALPHA_MAX_REGISTER_RAW_SIZE] =
- {0};
- for (regno = 0; regno < NUM_REGS; regno++)
+ for (regno = 0; regno < ALPHA_NUM_REGS; regno++)
{
- if (CANNOT_FETCH_REGISTER (regno))
+ if (gdbarch_cannot_fetch_register (gdbarch, regno))
+ {
+ regcache_raw_supply (regcache, regno, NULL);
+ continue;
+ }
+
+ if (regno == ALPHA_ZERO_REGNUM)
{
- supply_register (regno, zerobuf);
+ const gdb_byte zero[8] = { 0 };
+
+ regcache_raw_supply (regcache, regno, zero);
continue;
}
+
addr = 8 * core_reg_mapping[regno];
if (addr < 0 || addr >= core_reg_size)
{
+ /* ??? UNIQUE is a new addition. Don't generate an error. */
+ if (regno == ALPHA_UNIQUE_REGNUM)
+ {
+ regcache_raw_supply (regcache, regno, NULL);
+ continue;
+ }
if (bad_reg < 0)
bad_reg = regno;
}
else
{
- supply_register (regno, core_reg_sect + addr);
+ regcache_raw_supply (regcache, regno, core_reg_sect + addr);
}
}
if (bad_reg >= 0)
{
- error ("Register %s not found in core file.", REGISTER_NAME (bad_reg));
+ error (_("Register %s not found in core file."),
+ gdbarch_register_name (gdbarch, bad_reg));
}
}
-static void
-fetch_elf_core_registers (char *core_reg_sect, unsigned core_reg_size,
- int which, CORE_ADDR reg_addr)
-{
- if (core_reg_size < 32 * 8)
- {
- error ("Core file register section too small (%u bytes).", core_reg_size);
- return;
- }
-
- if (which == 2)
- {
- /* The FPU Registers. */
- memcpy (&deprecated_registers[REGISTER_BYTE (FP0_REGNUM)],
- core_reg_sect, 31 * 8);
- memset (&deprecated_registers[REGISTER_BYTE (FP0_REGNUM + 31)], 0, 8);
- memset (&deprecated_register_valid[FP0_REGNUM], 1, 32);
- }
- else
- {
- /* The General Registers. */
- memcpy (&deprecated_registers[REGISTER_BYTE (ALPHA_V0_REGNUM)],
- core_reg_sect, 31 * 8);
- memcpy (&deprecated_registers[REGISTER_BYTE (PC_REGNUM)],
- core_reg_sect + 31 * 8, 8);
- memset (&deprecated_registers[REGISTER_BYTE (ALPHA_ZERO_REGNUM)], 0, 8);
- memset (&deprecated_register_valid[ALPHA_V0_REGNUM], 1, 32);
- deprecated_register_valid[PC_REGNUM] = 1;
- }
-}
-
-
-/* Map gdb internal register number to a ptrace ``address''.
- These ``addresses'' are defined in <sys/ptrace.h> */
-
-#define REGISTER_PTRACE_ADDR(regno) \
- (regno < FP0_REGNUM ? GPR_BASE + (regno) \
- : regno == PC_REGNUM ? PC \
- : regno >= FP0_REGNUM ? FPR_BASE + ((regno) - FP0_REGNUM) \
- : 0)
-
-/* Return the ptrace ``address'' of register REGNO. */
-
-CORE_ADDR
-register_addr (int regno, CORE_ADDR blockend)
-{
- return REGISTER_PTRACE_ADDR (regno);
-}
-
-int
-kernel_u_size (void)
-{
- return (sizeof (struct user));
-}
-#if defined(USE_PROC_FS) || defined(HAVE_GREGSET_T)
#include <sys/procfs.h>
-
-/* Prototypes for supply_gregset etc. */
+/* Prototypes for supply_gregset etc. */
#include "gregset.h"
-/*
- * See the comment in m68k-tdep.c regarding the utility of these functions.
- */
+/* See the comment in m68k-tdep.c regarding the utility of these
+ functions. */
void
-supply_gregset (gdb_gregset_t *gregsetp)
+supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
{
- register int regi;
- register long *regp = ALPHA_REGSET_BASE (gregsetp);
- static char zerobuf[ALPHA_MAX_REGISTER_RAW_SIZE] =
- {0};
-
- for (regi = 0; regi < 31; regi++)
- supply_register (regi, (char *) (regp + regi));
+ const long *regp = gregsetp->regs;
- supply_register (PC_REGNUM, (char *) (regp + 31));
-
- /* Fill inaccessible registers with zero. */
- supply_register (ALPHA_ZERO_REGNUM, zerobuf);
- supply_register (FP_REGNUM, zerobuf);
+ /* PC is in slot 32. */
+ alpha_supply_int_regs (regcache, -1, regp, regp + 31, NULL);
}
void
-fill_gregset (gdb_gregset_t *gregsetp, int regno)
+fill_gregset (const struct regcache *regcache,
+ gdb_gregset_t *gregsetp, int regno)
{
- int regi;
- register long *regp = ALPHA_REGSET_BASE (gregsetp);
-
- for (regi = 0; regi < 31; regi++)
- if ((regno == -1) || (regno == regi))
- *(regp + regi) = *(long *) &deprecated_registers[REGISTER_BYTE (regi)];
+ long *regp = gregsetp->regs;
- if ((regno == -1) || (regno == PC_REGNUM))
- *(regp + 31) = *(long *) &deprecated_registers[REGISTER_BYTE (PC_REGNUM)];
+ /* PC is in slot 32. */
+ alpha_fill_int_regs (regcache, regno, regp, regp + 31, NULL);
}
-/*
- * Now we do the same thing for floating-point registers.
- * Again, see the comments in m68k-tdep.c.
- */
+/* Now we do the same thing for floating-point registers.
+ Again, see the comments in m68k-tdep.c. */
void
-supply_fpregset (gdb_fpregset_t *fpregsetp)
+supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
{
- register int regi;
- register long *regp = ALPHA_REGSET_BASE (fpregsetp);
+ const long *regp = fpregsetp->regs;
- for (regi = 0; regi < 32; regi++)
- supply_register (regi + FP0_REGNUM, (char *) (regp + regi));
+ /* FPCR is in slot 32. */
+ alpha_supply_fp_regs (regcache, -1, regp, regp + 31);
}
void
-fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
+fill_fpregset (const struct regcache *regcache,
+ gdb_fpregset_t *fpregsetp, int regno)
{
- int regi;
- register long *regp = ALPHA_REGSET_BASE (fpregsetp);
+ long *regp = fpregsetp->regs;
- for (regi = FP0_REGNUM; regi < FP0_REGNUM + 32; regi++)
- {
- if ((regno == -1) || (regno == regi))
- {
- *(regp + regi - FP0_REGNUM) =
- *(long *) &deprecated_registers[REGISTER_BYTE (regi)];
- }
- }
+ /* FPCR is in slot 32. */
+ alpha_fill_fp_regs (regcache, regno, regp, regp + 31);
}
-#endif
\f
-/* Register that we are able to handle alpha core file formats. */
+/* Register that we are able to handle alpha core file formats. */
static struct core_fns alpha_osf_core_fns =
{
NULL /* next */
};
-static struct core_fns alpha_elf_core_fns =
-{
- bfd_target_elf_flavour, /* core_flavour */
- default_check_format, /* check_format */
- default_core_sniffer, /* core_sniffer */
- fetch_elf_core_registers, /* core_read_registers */
- NULL /* next */
-};
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_alpha_nat;
void
-_initialize_core_alpha (void)
+_initialize_alpha_nat (void)
{
- add_core_fns (&alpha_osf_core_fns);
- add_core_fns (&alpha_elf_core_fns);
+ struct target_ops *t;
+
+ t = procfs_target ();
+ add_target (t);
+
+ deprecated_add_core_fns (&alpha_osf_core_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff