/* Target-dependent code for OpenBSD/mips64.
- Copyright 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004-2015 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 "gdbtypes.h"
#include "osabi.h"
#include "regcache.h"
#include "regset.h"
#include "trad-frame.h"
#include "tramp-frame.h"
-#include "gdb_assert.h"
-#include "gdb_string.h"
-
+#include "obsd-tdep.h"
#include "mips-tdep.h"
#include "solib-svr4.h"
+/* The MIPS64 Floating-Point Quad-Precision format is similar to
+ big-endian IA-64 Quad-Precision format. */
+#define floatformats_mips64_quad floatformats_ia64_quad
+
#define MIPS64OBSD_NUM_REGS 73
/* Core file support. */
/* OpenBSD/mips64 register set. */
-static struct regset mips64obsd_gregset =
+static const struct regset mips64obsd_gregset =
{
NULL,
mips64obsd_supply_gregset
};
-/* Return the appropriate register set for the core section identified
- by SECT_NAME and SECT_SIZE. */
+/* Iterate over core file register note sections. */
-static const struct regset *
-mips64obsd_regset_from_core_section (struct gdbarch *gdbarch,
- const char *sect_name, size_t sect_size)
+static void
+mips64obsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
- if (strcmp (sect_name, ".reg") == 0 && sect_size >= MIPS64OBSD_NUM_REGS * 8)
- return &mips64obsd_gregset;
-
- return NULL;
+ cb (".reg", MIPS64OBSD_NUM_REGS * 8, &mips64obsd_gregset, NULL, cb_data);
}
\f
static void
mips64obsd_sigframe_init (const struct tramp_frame *self,
- struct frame_info *next_frame,
+ struct frame_info *this_frame,
struct trad_frame_cache *cache,
CORE_ADDR func)
{
- struct gdbarch *gdbarch = get_frame_arch (next_frame);
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
CORE_ADDR sp, sigcontext_addr, addr;
int regnum;
/* We find the appropriate instance of `struct sigcontext' at a
fixed offset in the signal frame. */
- sp = frame_unwind_register_signed (next_frame, MIPS_SP_REGNUM + NUM_REGS);
+ sp = get_frame_register_signed (this_frame,
+ MIPS_SP_REGNUM + gdbarch_num_regs (gdbarch));
sigcontext_addr = sp + 32;
/* PC. */
regnum = mips_regnum (gdbarch)->pc;
- trad_frame_set_reg_addr (cache, regnum + NUM_REGS, sigcontext_addr + 16);
+ trad_frame_set_reg_addr (cache,
+ regnum + gdbarch_num_regs (gdbarch),
+ sigcontext_addr + 16);
/* GPRs. */
for (regnum = MIPS_AT_REGNUM, addr = sigcontext_addr + 32;
regnum <= MIPS_RA_REGNUM; regnum++, addr += 8)
- trad_frame_set_reg_addr (cache, regnum + NUM_REGS, addr);
+ trad_frame_set_reg_addr (cache,
+ regnum + gdbarch_num_regs (gdbarch),
+ addr);
/* HI and LO. */
regnum = mips_regnum (gdbarch)->lo;
- trad_frame_set_reg_addr (cache, regnum + NUM_REGS, sigcontext_addr + 280);
+ trad_frame_set_reg_addr (cache,
+ regnum + gdbarch_num_regs (gdbarch),
+ sigcontext_addr + 280);
regnum = mips_regnum (gdbarch)->hi;
- trad_frame_set_reg_addr (cache, regnum + NUM_REGS, sigcontext_addr + 288);
+ trad_frame_set_reg_addr (cache,
+ regnum + gdbarch_num_regs (gdbarch),
+ sigcontext_addr + 288);
/* TODO: Handle the floating-point registers. */
/* OpenBSD/mips64 only supports the n64 ABI, but the braindamaged
way GDB works, forces us to pretend we can handle them all. */
- set_gdbarch_regset_from_core_section
- (gdbarch, mips64obsd_regset_from_core_section);
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, mips64obsd_iterate_over_regset_sections);
tramp_frame_prepend_unwinder (gdbarch, &mips64obsd_sigframe);
+ set_gdbarch_long_double_bit (gdbarch, 128);
+ set_gdbarch_long_double_format (gdbarch, floatformats_mips64_quad);
+
+ obsd_init_abi(info, gdbarch);
+
/* OpenBSD/mips64 has SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_lp64_fetch_link_map_offsets);