123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124 |
- /* Target-dependent code for ARM BSD's.
- Copyright (C) 2006-2022 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 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- 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, see <http://www.gnu.org/licenses/>. */
- #include "defs.h"
- #include "osabi.h"
- #include "regcache.h"
- #include "regset.h"
- #include "arm-tdep.h"
- /* Core file support. */
- /* Sizeof `struct reg' in <machine/reg.h>. */
- #define ARMBSD_SIZEOF_GREGS (17 * 4)
- /* Sizeof `struct fpreg' in <machine/reg.h. */
- #define ARMBSD_SIZEOF_FPREGS ((1 + (8 * 3)) * 4)
- static int
- armbsd_fpreg_offset (int regnum)
- {
- if (regnum == ARM_FPS_REGNUM)
- return 0;
- return 4 + (regnum - ARM_F0_REGNUM) * 12;
- }
- /* Supply register REGNUM from the buffer specified by FPREGS and LEN
- in the floating-point register set REGSET to register cache
- REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
- static void
- armbsd_supply_fpregset (const struct regset *regset,
- struct regcache *regcache,
- int regnum, const void *fpregs, size_t len)
- {
- const gdb_byte *regs = (const gdb_byte *) fpregs;
- int i;
- gdb_assert (len >= ARMBSD_SIZEOF_FPREGS);
- for (i = ARM_F0_REGNUM; i <= ARM_FPS_REGNUM; i++)
- {
- if (regnum == i || regnum == -1)
- regcache->raw_supply (i, regs + armbsd_fpreg_offset (i));
- }
- }
- /* Supply register REGNUM from the buffer specified by GREGS and LEN
- in the general-purpose register set REGSET to register cache
- REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
- static void
- armbsd_supply_gregset (const struct regset *regset,
- struct regcache *regcache,
- int regnum, const void *gregs, size_t len)
- {
- const gdb_byte *regs = (const gdb_byte *) gregs;
- int i;
- gdb_assert (len >= ARMBSD_SIZEOF_GREGS);
- for (i = ARM_A1_REGNUM; i <= ARM_PC_REGNUM; i++)
- {
- if (regnum == i || regnum == -1)
- regcache->raw_supply (i, regs + i * 4);
- }
- if (regnum == ARM_PS_REGNUM || regnum == -1)
- regcache->raw_supply (i, regs + 16 * 4);
- if (len >= ARMBSD_SIZEOF_GREGS + ARMBSD_SIZEOF_FPREGS)
- {
- regs += ARMBSD_SIZEOF_GREGS;
- len -= ARMBSD_SIZEOF_GREGS;
- armbsd_supply_fpregset (regset, regcache, regnum, regs, len);
- }
- }
- /* ARM register sets. */
- static const struct regset armbsd_gregset =
- {
- NULL,
- armbsd_supply_gregset,
- NULL,
- REGSET_VARIABLE_SIZE
- };
- static const struct regset armbsd_fpregset =
- {
- NULL,
- armbsd_supply_fpregset
- };
- /* Iterate over supported core file register note sections. */
- void
- armbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
- iterate_over_regset_sections_cb *cb,
- void *cb_data,
- const struct regcache *regcache)
- {
- cb (".reg", ARMBSD_SIZEOF_GREGS, ARMBSD_SIZEOF_GREGS, &armbsd_gregset, NULL,
- cb_data);
- cb (".reg2", ARMBSD_SIZEOF_FPREGS, ARMBSD_SIZEOF_FPREGS, &armbsd_fpregset,
- NULL, cb_data);
- }
|