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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [sparcnbsd-tdep.c] - Diff between revs 227 and 816

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/* Target-dependent code for NetBSD/sparc.
/* Target-dependent code for NetBSD/sparc.
 
 
   Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010
   Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010
   Free Software Foundation, Inc.
   Free Software Foundation, Inc.
   Contributed by Wasabi Systems, Inc.
   Contributed by Wasabi Systems, Inc.
 
 
   This file is part of GDB.
   This file is part of GDB.
 
 
   This program is free software; you can redistribute it and/or modify
   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
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   (at your option) any later version.
 
 
   This program is distributed in the hope that it will be useful,
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   GNU General Public License for more details.
 
 
   You should have received a copy of the GNU General Public License
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 
#include "defs.h"
#include "defs.h"
#include "frame.h"
#include "frame.h"
#include "frame-unwind.h"
#include "frame-unwind.h"
#include "gdbcore.h"
#include "gdbcore.h"
#include "gdbtypes.h"
#include "gdbtypes.h"
#include "osabi.h"
#include "osabi.h"
#include "regcache.h"
#include "regcache.h"
#include "regset.h"
#include "regset.h"
#include "solib-svr4.h"
#include "solib-svr4.h"
#include "symtab.h"
#include "symtab.h"
#include "trad-frame.h"
#include "trad-frame.h"
 
 
#include "gdb_assert.h"
#include "gdb_assert.h"
#include "gdb_string.h"
#include "gdb_string.h"
 
 
#include "sparc-tdep.h"
#include "sparc-tdep.h"
#include "nbsd-tdep.h"
#include "nbsd-tdep.h"
 
 
/* Macros to extract fields from SPARC instructions.  */
/* Macros to extract fields from SPARC instructions.  */
#define X_RS1(i) (((i) >> 14) & 0x1f)
#define X_RS1(i) (((i) >> 14) & 0x1f)
#define X_RS2(i) ((i) & 0x1f)
#define X_RS2(i) ((i) & 0x1f)
#define X_I(i) (((i) >> 13) & 1)
#define X_I(i) (((i) >> 13) & 1)
 
 
const struct sparc_gregset sparc32nbsd_gregset =
const struct sparc_gregset sparc32nbsd_gregset =
{
{
  0 * 4,                 /* %psr */
  0 * 4,                 /* %psr */
  1 * 4,                        /* %pc */
  1 * 4,                        /* %pc */
  2 * 4,                        /* %npc */
  2 * 4,                        /* %npc */
  3 * 4,                        /* %y */
  3 * 4,                        /* %y */
  -1,                           /* %wim */
  -1,                           /* %wim */
  -1,                           /* %tbr */
  -1,                           /* %tbr */
  5 * 4,                        /* %g1 */
  5 * 4,                        /* %g1 */
  -1                            /* %l0 */
  -1                            /* %l0 */
};
};
 
 
static void
static void
sparc32nbsd_supply_gregset (const struct regset *regset,
sparc32nbsd_supply_gregset (const struct regset *regset,
                            struct regcache *regcache,
                            struct regcache *regcache,
                            int regnum, const void *gregs, size_t len)
                            int regnum, const void *gregs, size_t len)
{
{
  sparc32_supply_gregset (&sparc32nbsd_gregset, regcache, regnum, gregs);
  sparc32_supply_gregset (&sparc32nbsd_gregset, regcache, regnum, gregs);
 
 
  /* Traditional NetBSD core files don't use multiple register sets.
  /* Traditional NetBSD core files don't use multiple register sets.
     Instead, the general-purpose and floating-point registers are
     Instead, the general-purpose and floating-point registers are
     lumped together in a single section.  */
     lumped together in a single section.  */
  if (len >= 212)
  if (len >= 212)
    sparc32_supply_fpregset (regcache, regnum, (const char *) gregs + 80);
    sparc32_supply_fpregset (regcache, regnum, (const char *) gregs + 80);
}
}
 
 
static void
static void
sparc32nbsd_supply_fpregset (const struct regset *regset,
sparc32nbsd_supply_fpregset (const struct regset *regset,
                             struct regcache *regcache,
                             struct regcache *regcache,
                             int regnum, const void *fpregs, size_t len)
                             int regnum, const void *fpregs, size_t len)
{
{
  sparc32_supply_fpregset (regcache, regnum, fpregs);
  sparc32_supply_fpregset (regcache, regnum, fpregs);
}
}
 
 


/* Signal trampolines.  */
/* Signal trampolines.  */
 
 
/* The following variables describe the location of an on-stack signal
/* The following variables describe the location of an on-stack signal
   trampoline.  The current values correspond to the memory layout for
   trampoline.  The current values correspond to the memory layout for
   NetBSD 1.3 and up.  These shouldn't be necessary for NetBSD 2.0 and
   NetBSD 1.3 and up.  These shouldn't be necessary for NetBSD 2.0 and
   up, since NetBSD uses signal trampolines provided by libc now.  */
   up, since NetBSD uses signal trampolines provided by libc now.  */
 
 
static const CORE_ADDR sparc32nbsd_sigtramp_start = 0xeffffef0;
static const CORE_ADDR sparc32nbsd_sigtramp_start = 0xeffffef0;
static const CORE_ADDR sparc32nbsd_sigtramp_end = 0xeffffff0;
static const CORE_ADDR sparc32nbsd_sigtramp_end = 0xeffffff0;
 
 
static int
static int
sparc32nbsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
sparc32nbsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
{
{
  if (pc >= sparc32nbsd_sigtramp_start && pc < sparc32nbsd_sigtramp_end)
  if (pc >= sparc32nbsd_sigtramp_start && pc < sparc32nbsd_sigtramp_end)
    return 1;
    return 1;
 
 
  return nbsd_pc_in_sigtramp (pc, name);
  return nbsd_pc_in_sigtramp (pc, name);
}
}
 
 
struct trad_frame_saved_reg *
struct trad_frame_saved_reg *
sparc32nbsd_sigcontext_saved_regs (struct frame_info *this_frame)
sparc32nbsd_sigcontext_saved_regs (struct frame_info *this_frame)
{
{
  struct gdbarch *gdbarch = get_frame_arch (this_frame);
  struct gdbarch *gdbarch = get_frame_arch (this_frame);
  struct trad_frame_saved_reg *saved_regs;
  struct trad_frame_saved_reg *saved_regs;
  CORE_ADDR addr, sigcontext_addr;
  CORE_ADDR addr, sigcontext_addr;
  int regnum, delta;
  int regnum, delta;
  ULONGEST psr;
  ULONGEST psr;
 
 
  saved_regs = trad_frame_alloc_saved_regs (this_frame);
  saved_regs = trad_frame_alloc_saved_regs (this_frame);
 
 
  /* We find the appropriate instance of `struct sigcontext' at a
  /* We find the appropriate instance of `struct sigcontext' at a
     fixed offset in the signal frame.  */
     fixed offset in the signal frame.  */
  addr = get_frame_register_unsigned (this_frame, SPARC_FP_REGNUM);
  addr = get_frame_register_unsigned (this_frame, SPARC_FP_REGNUM);
  sigcontext_addr = addr + 64 + 16;
  sigcontext_addr = addr + 64 + 16;
 
 
  /* The registers are saved in bits and pieces scattered all over the
  /* The registers are saved in bits and pieces scattered all over the
     place.  The code below records their location on the assumption
     place.  The code below records their location on the assumption
     that the part of the signal trampoline that saves the state has
     that the part of the signal trampoline that saves the state has
     been executed.  */
     been executed.  */
 
 
  saved_regs[SPARC_SP_REGNUM].addr = sigcontext_addr + 8;
  saved_regs[SPARC_SP_REGNUM].addr = sigcontext_addr + 8;
  saved_regs[SPARC32_PC_REGNUM].addr = sigcontext_addr + 12;
  saved_regs[SPARC32_PC_REGNUM].addr = sigcontext_addr + 12;
  saved_regs[SPARC32_NPC_REGNUM].addr = sigcontext_addr + 16;
  saved_regs[SPARC32_NPC_REGNUM].addr = sigcontext_addr + 16;
  saved_regs[SPARC32_PSR_REGNUM].addr = sigcontext_addr + 20;
  saved_regs[SPARC32_PSR_REGNUM].addr = sigcontext_addr + 20;
  saved_regs[SPARC_G1_REGNUM].addr = sigcontext_addr + 24;
  saved_regs[SPARC_G1_REGNUM].addr = sigcontext_addr + 24;
  saved_regs[SPARC_O0_REGNUM].addr = sigcontext_addr + 28;
  saved_regs[SPARC_O0_REGNUM].addr = sigcontext_addr + 28;
 
 
  /* The remaining `global' registers and %y are saved in the `local'
  /* The remaining `global' registers and %y are saved in the `local'
     registers.  */
     registers.  */
  delta = SPARC_L0_REGNUM - SPARC_G0_REGNUM;
  delta = SPARC_L0_REGNUM - SPARC_G0_REGNUM;
  for (regnum = SPARC_G2_REGNUM; regnum <= SPARC_G7_REGNUM; regnum++)
  for (regnum = SPARC_G2_REGNUM; regnum <= SPARC_G7_REGNUM; regnum++)
    saved_regs[regnum].realreg = regnum + delta;
    saved_regs[regnum].realreg = regnum + delta;
  saved_regs[SPARC32_Y_REGNUM].realreg = SPARC_L1_REGNUM;
  saved_regs[SPARC32_Y_REGNUM].realreg = SPARC_L1_REGNUM;
 
 
  /* The remaining `out' registers can be found in the current frame's
  /* The remaining `out' registers can be found in the current frame's
     `in' registers.  */
     `in' registers.  */
  delta = SPARC_I0_REGNUM - SPARC_O0_REGNUM;
  delta = SPARC_I0_REGNUM - SPARC_O0_REGNUM;
  for (regnum = SPARC_O1_REGNUM; regnum <= SPARC_O5_REGNUM; regnum++)
  for (regnum = SPARC_O1_REGNUM; regnum <= SPARC_O5_REGNUM; regnum++)
    saved_regs[regnum].realreg = regnum + delta;
    saved_regs[regnum].realreg = regnum + delta;
  saved_regs[SPARC_O7_REGNUM].realreg = SPARC_I7_REGNUM;
  saved_regs[SPARC_O7_REGNUM].realreg = SPARC_I7_REGNUM;
 
 
  /* The `local' and `in' registers have been saved in the register
  /* The `local' and `in' registers have been saved in the register
     save area.  */
     save area.  */
  addr = saved_regs[SPARC_SP_REGNUM].addr;
  addr = saved_regs[SPARC_SP_REGNUM].addr;
  addr = get_frame_memory_unsigned (this_frame, addr, 4);
  addr = get_frame_memory_unsigned (this_frame, addr, 4);
  for (regnum = SPARC_L0_REGNUM;
  for (regnum = SPARC_L0_REGNUM;
       regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
       regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
    saved_regs[regnum].addr = addr;
    saved_regs[regnum].addr = addr;
 
 
  /* Handle StackGhost.  */
  /* Handle StackGhost.  */
  {
  {
    ULONGEST wcookie = sparc_fetch_wcookie (gdbarch);
    ULONGEST wcookie = sparc_fetch_wcookie (gdbarch);
 
 
    if (wcookie != 0)
    if (wcookie != 0)
      {
      {
        ULONGEST i7;
        ULONGEST i7;
 
 
        addr = saved_regs[SPARC_I7_REGNUM].addr;
        addr = saved_regs[SPARC_I7_REGNUM].addr;
        i7 = get_frame_memory_unsigned (this_frame, addr, 4);
        i7 = get_frame_memory_unsigned (this_frame, addr, 4);
        trad_frame_set_value (saved_regs, SPARC_I7_REGNUM, i7 ^ wcookie);
        trad_frame_set_value (saved_regs, SPARC_I7_REGNUM, i7 ^ wcookie);
      }
      }
  }
  }
 
 
  /* The floating-point registers are only saved if the EF bit in %prs
  /* The floating-point registers are only saved if the EF bit in %prs
     has been set.  */
     has been set.  */
 
 
#define PSR_EF  0x00001000
#define PSR_EF  0x00001000
 
 
  addr = saved_regs[SPARC32_PSR_REGNUM].addr;
  addr = saved_regs[SPARC32_PSR_REGNUM].addr;
  psr = get_frame_memory_unsigned (this_frame, addr, 4);
  psr = get_frame_memory_unsigned (this_frame, addr, 4);
  if (psr & PSR_EF)
  if (psr & PSR_EF)
    {
    {
      CORE_ADDR sp;
      CORE_ADDR sp;
 
 
      sp = get_frame_register_unsigned (this_frame, SPARC_SP_REGNUM);
      sp = get_frame_register_unsigned (this_frame, SPARC_SP_REGNUM);
      saved_regs[SPARC32_FSR_REGNUM].addr = sp + 96;
      saved_regs[SPARC32_FSR_REGNUM].addr = sp + 96;
      for (regnum = SPARC_F0_REGNUM, addr = sp + 96 + 8;
      for (regnum = SPARC_F0_REGNUM, addr = sp + 96 + 8;
           regnum <= SPARC_F31_REGNUM; regnum++, addr += 4)
           regnum <= SPARC_F31_REGNUM; regnum++, addr += 4)
        saved_regs[regnum].addr = addr;
        saved_regs[regnum].addr = addr;
    }
    }
 
 
  return saved_regs;
  return saved_regs;
}
}
 
 
static struct sparc_frame_cache *
static struct sparc_frame_cache *
sparc32nbsd_sigcontext_frame_cache (struct frame_info *this_frame,
sparc32nbsd_sigcontext_frame_cache (struct frame_info *this_frame,
                                    void **this_cache)
                                    void **this_cache)
{
{
  struct sparc_frame_cache *cache;
  struct sparc_frame_cache *cache;
  CORE_ADDR addr;
  CORE_ADDR addr;
 
 
  if (*this_cache)
  if (*this_cache)
    return *this_cache;
    return *this_cache;
 
 
  cache = sparc_frame_cache (this_frame, this_cache);
  cache = sparc_frame_cache (this_frame, this_cache);
  gdb_assert (cache == *this_cache);
  gdb_assert (cache == *this_cache);
 
 
  /* If we couldn't find the frame's function, we're probably dealing
  /* If we couldn't find the frame's function, we're probably dealing
     with an on-stack signal trampoline.  */
     with an on-stack signal trampoline.  */
  if (cache->pc == 0)
  if (cache->pc == 0)
    {
    {
      cache->pc = sparc32nbsd_sigtramp_start;
      cache->pc = sparc32nbsd_sigtramp_start;
 
 
      /* Since we couldn't find the frame's function, the cache was
      /* Since we couldn't find the frame's function, the cache was
         initialized under the assumption that we're frameless.  */
         initialized under the assumption that we're frameless.  */
      cache->frameless_p = 0;
      cache->frameless_p = 0;
      addr = get_frame_register_unsigned (this_frame, SPARC_FP_REGNUM);
      addr = get_frame_register_unsigned (this_frame, SPARC_FP_REGNUM);
      cache->base = addr;
      cache->base = addr;
    }
    }
 
 
  cache->saved_regs = sparc32nbsd_sigcontext_saved_regs (this_frame);
  cache->saved_regs = sparc32nbsd_sigcontext_saved_regs (this_frame);
 
 
  return cache;
  return cache;
}
}
 
 
static void
static void
sparc32nbsd_sigcontext_frame_this_id (struct frame_info *this_frame,
sparc32nbsd_sigcontext_frame_this_id (struct frame_info *this_frame,
                                      void **this_cache,
                                      void **this_cache,
                                      struct frame_id *this_id)
                                      struct frame_id *this_id)
{
{
  struct sparc_frame_cache *cache =
  struct sparc_frame_cache *cache =
    sparc32nbsd_sigcontext_frame_cache (this_frame, this_cache);
    sparc32nbsd_sigcontext_frame_cache (this_frame, this_cache);
 
 
  (*this_id) = frame_id_build (cache->base, cache->pc);
  (*this_id) = frame_id_build (cache->base, cache->pc);
}
}
 
 
static struct value *
static struct value *
sparc32nbsd_sigcontext_frame_prev_register (struct frame_info *this_frame,
sparc32nbsd_sigcontext_frame_prev_register (struct frame_info *this_frame,
                                            void **this_cache, int regnum)
                                            void **this_cache, int regnum)
{
{
  struct sparc_frame_cache *cache =
  struct sparc_frame_cache *cache =
    sparc32nbsd_sigcontext_frame_cache (this_frame, this_cache);
    sparc32nbsd_sigcontext_frame_cache (this_frame, this_cache);
 
 
  return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
  return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
}
}
 
 
static int
static int
sparc32nbsd_sigcontext_frame_sniffer (const struct frame_unwind *self,
sparc32nbsd_sigcontext_frame_sniffer (const struct frame_unwind *self,
                                      struct frame_info *this_frame,
                                      struct frame_info *this_frame,
                                      void **this_cache)
                                      void **this_cache)
{
{
  CORE_ADDR pc = get_frame_pc (this_frame);
  CORE_ADDR pc = get_frame_pc (this_frame);
  char *name;
  char *name;
 
 
  find_pc_partial_function (pc, &name, NULL, NULL);
  find_pc_partial_function (pc, &name, NULL, NULL);
  if (sparc32nbsd_pc_in_sigtramp (pc, name))
  if (sparc32nbsd_pc_in_sigtramp (pc, name))
    {
    {
      if (name == NULL || strncmp (name, "__sigtramp_sigcontext", 21))
      if (name == NULL || strncmp (name, "__sigtramp_sigcontext", 21))
        return 1;
        return 1;
    }
    }
 
 
  return 0;
  return 0;
}
}
 
 
static const struct frame_unwind sparc32nbsd_sigcontext_frame_unwind =
static const struct frame_unwind sparc32nbsd_sigcontext_frame_unwind =
{
{
  SIGTRAMP_FRAME,
  SIGTRAMP_FRAME,
  sparc32nbsd_sigcontext_frame_this_id,
  sparc32nbsd_sigcontext_frame_this_id,
  sparc32nbsd_sigcontext_frame_prev_register,
  sparc32nbsd_sigcontext_frame_prev_register,
  NULL,
  NULL,
  sparc32nbsd_sigcontext_frame_sniffer
  sparc32nbsd_sigcontext_frame_sniffer
};
};


/* Return the address of a system call's alternative return
/* Return the address of a system call's alternative return
   address.  */
   address.  */
 
 
CORE_ADDR
CORE_ADDR
sparcnbsd_step_trap (struct frame_info *frame, unsigned long insn)
sparcnbsd_step_trap (struct frame_info *frame, unsigned long insn)
{
{
  if ((X_I (insn) == 0 && X_RS1 (insn) == 0 && X_RS2 (insn) == 0)
  if ((X_I (insn) == 0 && X_RS1 (insn) == 0 && X_RS2 (insn) == 0)
      || (X_I (insn) == 1 && X_RS1 (insn) == 0 && (insn & 0x7f) == 0))
      || (X_I (insn) == 1 && X_RS1 (insn) == 0 && (insn & 0x7f) == 0))
    {
    {
      /* "New" system call.  */
      /* "New" system call.  */
      ULONGEST number = get_frame_register_unsigned (frame, SPARC_G1_REGNUM);
      ULONGEST number = get_frame_register_unsigned (frame, SPARC_G1_REGNUM);
 
 
      if (number & 0x400)
      if (number & 0x400)
        return get_frame_register_unsigned (frame, SPARC_G2_REGNUM);
        return get_frame_register_unsigned (frame, SPARC_G2_REGNUM);
      if (number & 0x800)
      if (number & 0x800)
        return get_frame_register_unsigned (frame, SPARC_G7_REGNUM);
        return get_frame_register_unsigned (frame, SPARC_G7_REGNUM);
    }
    }
 
 
  return 0;
  return 0;
}
}


 
 
static void
static void
sparc32nbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
sparc32nbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
{
  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
 
  /* NetBSD doesn't support the 128-bit `long double' from the psABI.  */
  /* NetBSD doesn't support the 128-bit `long double' from the psABI.  */
  set_gdbarch_long_double_bit (gdbarch, 64);
  set_gdbarch_long_double_bit (gdbarch, 64);
  set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
  set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
 
 
  tdep->gregset = regset_alloc (gdbarch, sparc32nbsd_supply_gregset, NULL);
  tdep->gregset = regset_alloc (gdbarch, sparc32nbsd_supply_gregset, NULL);
  tdep->sizeof_gregset = 20 * 4;
  tdep->sizeof_gregset = 20 * 4;
 
 
  tdep->fpregset = regset_alloc (gdbarch, sparc32nbsd_supply_fpregset, NULL);
  tdep->fpregset = regset_alloc (gdbarch, sparc32nbsd_supply_fpregset, NULL);
  tdep->sizeof_fpregset = 33 * 4;
  tdep->sizeof_fpregset = 33 * 4;
 
 
  /* Make sure we can single-step "new" syscalls.  */
  /* Make sure we can single-step "new" syscalls.  */
  tdep->step_trap = sparcnbsd_step_trap;
  tdep->step_trap = sparcnbsd_step_trap;
 
 
  frame_unwind_append_unwinder (gdbarch, &sparc32nbsd_sigcontext_frame_unwind);
  frame_unwind_append_unwinder (gdbarch, &sparc32nbsd_sigcontext_frame_unwind);
}
}
 
 
static void
static void
sparc32nbsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
sparc32nbsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
{
  sparc32nbsd_init_abi (info, gdbarch);
  sparc32nbsd_init_abi (info, gdbarch);
}
}
 
 
void
void
sparc32nbsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
sparc32nbsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
{
  sparc32nbsd_init_abi (info, gdbarch);
  sparc32nbsd_init_abi (info, gdbarch);
 
 
  set_solib_svr4_fetch_link_map_offsets
  set_solib_svr4_fetch_link_map_offsets
    (gdbarch, svr4_ilp32_fetch_link_map_offsets);
    (gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
}
 
 
static enum gdb_osabi
static enum gdb_osabi
sparcnbsd_aout_osabi_sniffer (bfd *abfd)
sparcnbsd_aout_osabi_sniffer (bfd *abfd)
{
{
  if (strcmp (bfd_get_target (abfd), "a.out-sparc-netbsd") == 0)
  if (strcmp (bfd_get_target (abfd), "a.out-sparc-netbsd") == 0)
    return GDB_OSABI_NETBSD_AOUT;
    return GDB_OSABI_NETBSD_AOUT;
 
 
  return GDB_OSABI_UNKNOWN;
  return GDB_OSABI_UNKNOWN;
}
}
 
 
/* OpenBSD uses the traditional NetBSD core file format, even for
/* OpenBSD uses the traditional NetBSD core file format, even for
   ports that use ELF.  Therefore, if the default OS ABI is OpenBSD
   ports that use ELF.  Therefore, if the default OS ABI is OpenBSD
   ELF, we return that instead of NetBSD a.out.  This is mainly for
   ELF, we return that instead of NetBSD a.out.  This is mainly for
   the benfit of OpenBSD/sparc64, which inherits the sniffer below
   the benfit of OpenBSD/sparc64, which inherits the sniffer below
   since we include this file for an OpenBSD/sparc64 target.  For
   since we include this file for an OpenBSD/sparc64 target.  For
   OpenBSD/sparc, the NetBSD a.out OS ABI is probably similar enough
   OpenBSD/sparc, the NetBSD a.out OS ABI is probably similar enough
   to both the OpenBSD a.out and the OpenBSD ELF OS ABI.  */
   to both the OpenBSD a.out and the OpenBSD ELF OS ABI.  */
#if defined (GDB_OSABI_DEFAULT) && (GDB_OSABI_DEFAULT == GDB_OSABI_OPENBSD_ELF)
#if defined (GDB_OSABI_DEFAULT) && (GDB_OSABI_DEFAULT == GDB_OSABI_OPENBSD_ELF)
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
#else
#else
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_NETBSD_AOUT
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_NETBSD_AOUT
#endif
#endif
 
 
static enum gdb_osabi
static enum gdb_osabi
sparcnbsd_core_osabi_sniffer (bfd *abfd)
sparcnbsd_core_osabi_sniffer (bfd *abfd)
{
{
  if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
  if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
    return GDB_OSABI_NETBSD_CORE;
    return GDB_OSABI_NETBSD_CORE;
 
 
  return GDB_OSABI_UNKNOWN;
  return GDB_OSABI_UNKNOWN;
}
}
 
 


/* Provide a prototype to silence -Wmissing-prototypes.  */
/* Provide a prototype to silence -Wmissing-prototypes.  */
void _initialize_sparcnbsd_tdep (void);
void _initialize_sparcnbsd_tdep (void);
 
 
void
void
_initialize_sparcnbsd_tdep (void)
_initialize_sparcnbsd_tdep (void)
{
{
  gdbarch_register_osabi_sniffer (bfd_arch_sparc, bfd_target_aout_flavour,
  gdbarch_register_osabi_sniffer (bfd_arch_sparc, bfd_target_aout_flavour,
                                  sparcnbsd_aout_osabi_sniffer);
                                  sparcnbsd_aout_osabi_sniffer);
 
 
  /* BFD doesn't set a flavour for NetBSD style a.out core files.  */
  /* BFD doesn't set a flavour for NetBSD style a.out core files.  */
  gdbarch_register_osabi_sniffer (bfd_arch_sparc, bfd_target_unknown_flavour,
  gdbarch_register_osabi_sniffer (bfd_arch_sparc, bfd_target_unknown_flavour,
                                  sparcnbsd_core_osabi_sniffer);
                                  sparcnbsd_core_osabi_sniffer);
 
 
  gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_NETBSD_AOUT,
  gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_NETBSD_AOUT,
                          sparc32nbsd_aout_init_abi);
                          sparc32nbsd_aout_init_abi);
  gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_NETBSD_ELF,
  gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_NETBSD_ELF,
                          sparc32nbsd_elf_init_abi);
                          sparc32nbsd_elf_init_abi);
}
}
 
 

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