#include "defs.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 "mips-tdep.h"
#include "solib-svr4.h"
#define MIPS64OBSD_NUM_REGS 73
static void
mips64obsd_supply_gregset (const struct regset *regset,
struct regcache *regcache, int regnum,
const void *gregs, size_t len)
{
const char *regs = gregs;
int i;
for (i = 0; i < MIPS64OBSD_NUM_REGS; i++)
{
if (regnum == i || regnum == -1)
regcache_raw_supply (regcache, i, regs + i * 8);
}
}
static struct regset mips64obsd_gregset =
{
NULL,
mips64obsd_supply_gregset
};
static const struct regset *
mips64obsd_regset_from_core_section (struct gdbarch *gdbarch,
const char *sect_name, size_t sect_size)
{
if (strcmp (sect_name, ".reg") == 0 && sect_size >= MIPS64OBSD_NUM_REGS * 8)
return &mips64obsd_gregset;
return NULL;
}
static void
mips64obsd_sigframe_init (const struct tramp_frame *self,
struct frame_info *next_frame,
struct trad_frame_cache *cache,
CORE_ADDR func)
{
struct gdbarch *gdbarch = get_frame_arch (next_frame);
CORE_ADDR sp, sigcontext_addr, addr;
int regnum;
sp = frame_unwind_register_signed (next_frame, MIPS_SP_REGNUM + NUM_REGS);
sigcontext_addr = sp + 32;
regnum = mips_regnum (gdbarch)->pc;
trad_frame_set_reg_addr (cache, regnum + NUM_REGS, sigcontext_addr + 16);
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);
regnum = mips_regnum (gdbarch)->lo;
trad_frame_set_reg_addr (cache, regnum + NUM_REGS, sigcontext_addr + 280);
regnum = mips_regnum (gdbarch)->hi;
trad_frame_set_reg_addr (cache, regnum + NUM_REGS, sigcontext_addr + 288);
trad_frame_set_id (cache, frame_id_build (sp, func));
}
static const struct tramp_frame mips64obsd_sigframe =
{
SIGTRAMP_FRAME,
MIPS_INSN32_SIZE,
{
{ 0x67a40020, -1 },
{ 0x24020067, -1 },
{ 0x0000000c, -1 },
{ 0x0000000d, -1 },
{ TRAMP_SENTINEL_INSN, -1 }
},
mips64obsd_sigframe_init
};
static void
mips64obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
set_gdbarch_regset_from_core_section
(gdbarch, mips64obsd_regset_from_core_section);
tramp_frame_prepend_unwinder (gdbarch, &mips64obsd_sigframe);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_lp64_fetch_link_map_offsets);
}
void _initialize_mips64obsd_tdep (void);
void
_initialize_mips64obsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_OPENBSD_ELF,
mips64obsd_init_abi);
}