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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [armbsd-tdep.c] - Rev 280
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/* Target-dependent code for ARM BSD's. Copyright (C) 2006, 2007, 2008 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 "gdb_assert.h" #include "gdb_string.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) 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 = 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 (regcache, 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 = 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 (regcache, i, regs + i * 4); } if (regnum == ARM_PS_REGNUM || regnum == -1) regcache_raw_supply (regcache, 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 struct regset armbsd_gregset = { NULL, armbsd_supply_gregset }; static struct regset armbsd_fpregset = { NULL, armbsd_supply_fpregset }; /* Return the appropriate register set for the core section identified by SECT_NAME and SECT_SIZE. */ const struct regset * armbsd_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size) { if (strcmp (sect_name, ".reg") == 0 && sect_size >= ARMBSD_SIZEOF_GREGS) return &armbsd_gregset; if (strcmp (sect_name, ".reg2") == 0 && sect_size >= ARMBSD_SIZEOF_FPREGS) return &armbsd_fpregset; return NULL; }
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