/* Target-dependent code for GDB, the GNU debugger.
- Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation,
- Inc.
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+ 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/>. */
#ifndef PPC_TDEP_H
#define PPC_TDEP_H
struct regcache;
struct type;
-/* From ppc-linux-tdep.c... */
+/* From ppc-sysv-tdep.c ... */
enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
+ struct type *func_type,
struct type *valtype,
struct regcache *regcache,
- void *readbuf,
- const void *writebuf);
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf);
enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
+ struct type *func_type,
struct type *valtype,
struct regcache *regcache,
- void *readbuf,
- const void *writebuf);
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf);
CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
struct value *function,
struct regcache *regcache,
struct value **args, CORE_ADDR sp,
int struct_return,
CORE_ADDR struct_addr);
-CORE_ADDR ppc64_sysv_abi_adjust_breakpoint_address (struct gdbarch *gdbarch,
- CORE_ADDR bpaddr);
-int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
-struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
-void ppc_linux_supply_gregset (struct regcache *regcache,
- int regnum, const void *gregs, size_t size,
- int wordsize);
-void ppc_linux_supply_fpregset (const struct regset *regset,
- struct regcache *regcache,
- int regnum, const void *gregs, size_t size);
-
enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
+ struct type *func_type,
struct type *valtype,
struct regcache *regcache,
- void *readbuf,
- const void *writebuf);
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf);
/* From rs6000-tdep.c... */
-int altivec_register_p (int regno);
-int spe_register_p (int regno);
+int altivec_register_p (struct gdbarch *gdbarch, int regno);
+int vsx_register_p (struct gdbarch *gdbarch, int regno);
+int spe_register_p (struct gdbarch *gdbarch, int regno);
/* Return non-zero if the architecture described by GDBARCH has
floating-point registers (f0 --- f31 and fpscr). */
int ppc_floating_point_unit_p (struct gdbarch *gdbarch);
+/* Return non-zero if the architecture described by GDBARCH has
+ Altivec registers (vr0 --- vr31, vrsave and vscr). */
+int ppc_altivec_support_p (struct gdbarch *gdbarch);
+
+/* Return non-zero if the architecture described by GDBARCH has
+ VSX registers (vsr0 --- vsr63). */
+int vsx_support_p (struct gdbarch *gdbarch);
+int ppc_deal_with_atomic_sequence (struct frame_info *frame);
+
+
/* Register set description. */
struct ppc_reg_offsets
{
/* General-purpose registers. */
int r0_offset;
+ int gpr_size; /* size for r0-31, pc, ps, lr, ctr. */
+ int xr_size; /* size for cr, xer, mq. */
int pc_offset;
int ps_offset;
int cr_offset;
/* Floating-point registers. */
int f0_offset;
int fpscr_offset;
+ int fpscr_size;
/* AltiVec registers. */
int vr0_offset;
int vrsave_offset;
};
+extern void ppc_supply_reg (struct regcache *regcache, int regnum,
+ const gdb_byte *regs, size_t offset, int regsize);
+
+extern void ppc_collect_reg (const struct regcache *regcache, int regnum,
+ gdb_byte *regs, size_t offset, int regsize);
+
/* Supply register REGNUM in the general-purpose register set REGSET
from the buffer specified by GREGS and LEN to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
struct regcache *regcache,
int regnum, const void *fpregs, size_t len);
+/* Supply register REGNUM in the Altivec register set REGSET
+ from the buffer specified by VRREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+extern void ppc_supply_vrregset (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *vrregs, size_t len);
+
+/* Supply register REGNUM in the VSX register set REGSET
+ from the buffer specified by VSXREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+extern void ppc_supply_vsxregset (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *vsxregs, size_t len);
+
/* Collect register REGNUM in the general-purpose register set
REGSET. from register cache REGCACHE into the buffer specified by
GREGS and LEN. If REGNUM is -1, do this for all registers in
const struct regcache *regcache,
int regnum, void *fpregs, size_t len);
+/* Collect register REGNUM in the Altivec register set
+ REGSET from register cache REGCACHE into the buffer specified by
+ VRREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+extern void ppc_collect_vrregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *vrregs, size_t len);
+
+/* Collect register REGNUM in the VSX register set
+ REGSET from register cache REGCACHE into the buffer specified by
+ VSXREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+extern void ppc_collect_vsxregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *vsxregs, size_t len);
+
/* Private data that this module attaches to struct gdbarch. */
+/* Vector ABI used by the inferior. */
+enum powerpc_vector_abi
+{
+ POWERPC_VEC_AUTO,
+ POWERPC_VEC_GENERIC,
+ POWERPC_VEC_ALTIVEC,
+ POWERPC_VEC_SPE,
+ POWERPC_VEC_LAST
+};
+
struct gdbarch_tdep
{
- int wordsize; /* size in bytes of fixed-point word */
- const struct reg *regs; /* from current variant */
+ int wordsize; /* Size in bytes of fixed-point word. */
+ int soft_float; /* Avoid FP registers for arguments? */
+
+ /* How to pass vector arguments. Never set to AUTO or LAST. */
+ enum powerpc_vector_abi vector_abi;
+
int ppc_gp0_regnum; /* GPR register 0 */
- int ppc_gprs_pseudo_p; /* non-zero if GPRs are pseudo-registers */
int ppc_toc_regnum; /* TOC register */
int ppc_ps_regnum; /* Processor (or machine) status (%msr) */
int ppc_cr_regnum; /* Condition register */
int ppc_ctr_regnum; /* Count register */
int ppc_xer_regnum; /* Integer exception register */
- /* On PPC and RS6000 variants that have no floating-point
- registers, the next two members will be -1. */
+ /* Not all PPC and RS6000 variants will have the registers
+ represented below. A -1 is used to indicate that the register
+ is not present in this variant. */
+
+ /* Floating-point registers. */
int ppc_fp0_regnum; /* floating-point register 0 */
- int ppc_fpscr_regnum; /* Floating point status and condition
- register */
+ int ppc_fpscr_regnum; /* fp status and condition register */
+
+ /* Multiplier-Quotient Register (older POWER architectures only). */
+ int ppc_mq_regnum;
+
+ /* POWER7 VSX registers. */
+ int ppc_vsr0_regnum; /* First VSX register. */
+ int ppc_vsr0_upper_regnum; /* First right most dword vsx register. */
+ int ppc_efpr0_regnum; /* First Extended FP register. */
- int ppc_mq_regnum; /* Multiply/Divide extension register */
+ /* Altivec registers. */
int ppc_vr0_regnum; /* First AltiVec register */
int ppc_vrsave_regnum; /* Last AltiVec register */
+
+ /* SPE registers. */
+ int ppc_ev0_upper_regnum; /* First GPR upper half register */
int ppc_ev0_regnum; /* First ev register */
- int ppc_ev31_regnum; /* Last ev register */
int ppc_acc_regnum; /* SPE 'acc' register */
int ppc_spefscr_regnum; /* SPE 'spefscr' register */
- int lr_frame_offset; /* Offset to ABI specific location where
- link register is saved. */
+
+ /* Decimal 128 registers. */
+ int ppc_dl0_regnum; /* First Decimal128 argument register pair. */
+
+ /* Offset to ABI specific location where link register is saved. */
+ int lr_frame_offset;
+
+ /* An array of integers, such that sim_regno[I] is the simulator
+ register number for GDB register number I, or -1 if the
+ simulator does not implement that register. */
+ int *sim_regno;
+
+ /* ISA-specific types. */
+ struct type *ppc_builtin_type_vec64;
+ struct type *ppc_builtin_type_vec128;
};
/* Constants for register set sizes. */
enum
{
- ppc_num_gprs = 32, /* 32 general-purpose registers */
- ppc_num_fprs = 32 /* 32 floating-point registers */
+ ppc_num_gprs = 32, /* 32 general-purpose registers. */
+ ppc_num_fprs = 32, /* 32 floating-point registers. */
+ ppc_num_srs = 16, /* 16 segment registers. */
+ ppc_num_vrs = 32, /* 32 Altivec vector registers. */
+ ppc_num_vshrs = 32, /* 32 doublewords (dword 1 of vs0~vs31). */
+ ppc_num_vsrs = 64, /* 64 VSX vector registers. */
+ ppc_num_efprs = 32 /* 32 Extended FP registers. */
};
-#endif
+
+/* Register number constants. These are GDB internal register
+ numbers; they are not used for the simulator or remote targets.
+ Extra SPRs (those other than MQ, CTR, LR, XER, SPEFSCR) are given
+ numbers above PPC_NUM_REGS. So are segment registers and other
+ target-defined registers. */
+enum {
+ PPC_R0_REGNUM = 0,
+ PPC_F0_REGNUM = 32,
+ PPC_PC_REGNUM = 64,
+ PPC_MSR_REGNUM = 65,
+ PPC_CR_REGNUM = 66,
+ PPC_LR_REGNUM = 67,
+ PPC_CTR_REGNUM = 68,
+ PPC_XER_REGNUM = 69,
+ PPC_FPSCR_REGNUM = 70,
+ PPC_MQ_REGNUM = 71,
+ PPC_SPE_UPPER_GP0_REGNUM = 72,
+ PPC_SPE_ACC_REGNUM = 104,
+ PPC_SPE_FSCR_REGNUM = 105,
+ PPC_VR0_REGNUM = 106,
+ PPC_VSCR_REGNUM = 138,
+ PPC_VRSAVE_REGNUM = 139,
+ PPC_VSR0_UPPER_REGNUM = 140,
+ PPC_VSR31_UPPER_REGNUM = 171,
+ PPC_NUM_REGS
+};
+
+
+/* Instruction size. */
+#define PPC_INSN_SIZE 4
+
+/* Estimate for the maximum number of instrctions in a function epilogue. */
+#define PPC_MAX_EPILOGUE_INSTRUCTIONS 52
+
+#endif /* ppc-tdep.h */
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