X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fppc-tdep.h;h=c66276c9d177bff3168f1b8fd259ed19281fe384;hb=refs%2Fheads%2Fconcurrent-displaced-stepping-2020-04-01;hp=1c1c9ef21a31992019f995f43e525cacdcbdac21;hpb=963e2bb72c415631fb836e137f24c6e0686fd205;p=deliverable%2Fbinutils-gdb.git
diff --git a/gdb/ppc-tdep.h b/gdb/ppc-tdep.h
index 1c1c9ef21a..c66276c9d1 100644
--- a/gdb/ppc-tdep.h
+++ b/gdb/ppc-tdep.h
@@ -1,12 +1,12 @@
/* Target-dependent code for GDB, the GNU debugger.
- Copyright 2000, 2001, 2002, 2003
- Free Software Foundation, Inc.
+
+ Copyright (C) 2000-2020 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,
@@ -15,99 +15,425 @@
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 . */
#ifndef PPC_TDEP_H
#define PPC_TDEP_H
+#include "gdbarch.h"
+
struct gdbarch;
struct frame_info;
struct value;
struct regcache;
struct type;
-/* From ppc-linux-tdep.c... */
-CORE_ADDR ppc_linux_frame_saved_pc (struct frame_info *fi);
-void ppc_linux_init_extra_frame_info (int fromleaf, struct frame_info *);
-int ppc_linux_frameless_function_invocation (struct frame_info *);
-void ppc_linux_frame_init_saved_regs (struct frame_info *);
-CORE_ADDR ppc_linux_frame_chain (struct frame_info *);
+/* From ppc-sysv-tdep.c ... */
enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
+ struct value *function,
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 value *function,
struct type *valtype,
struct regcache *regcache,
- void *readbuf,
- const void *writebuf);
-CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
- CORE_ADDR func_addr,
- struct regcache *regcache,
- CORE_ADDR bp_addr, int nargs,
- struct value **args, CORE_ADDR sp,
- int struct_return,
- CORE_ADDR struct_addr);
-CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
- CORE_ADDR func_addr,
- struct regcache *regcache,
- CORE_ADDR bp_addr, int nargs,
- 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 (char *buf);
-void ppc_linux_supply_fpregset (char *buf);
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf);
+
+CORE_ADDR ppc_sysv_abi_push_dummy_call
+ (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
+ CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
+ function_call_return_method return_method, CORE_ADDR struct_addr);
+
+CORE_ADDR ppc64_sysv_abi_push_dummy_call
+ (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
+ CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
+ function_call_return_method return_method, CORE_ADDR struct_addr);
enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
+ struct value *function,
struct type *valtype,
struct regcache *regcache,
- void *readbuf,
- const void *writebuf);
-
-/* From rs6000-tdep.c... */
-CORE_ADDR rs6000_frame_saved_pc (struct frame_info *fi);
-void rs6000_init_extra_frame_info (int fromleaf, struct frame_info *);
-int rs6000_frameless_function_invocation (struct frame_info *);
-void rs6000_frame_init_saved_regs (struct frame_info *);
-CORE_ADDR rs6000_frame_chain (struct frame_info *);
-int altivec_register_p (int regno);
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf);
+/* From rs6000-tdep.c... */
+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 when the architecture has an FPU (or at least when
- the ABI is using the FPU). */
+/* 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);
-/* Private data that this module attaches to struct 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);
+std::vector ppc_deal_with_atomic_sequence
+ (struct regcache *regcache);
+
+
+/* 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;
+ int lr_offset;
+ int ctr_offset;
+ int xer_offset;
+ int mq_offset;
+
+ /* Floating-point registers. */
+ int f0_offset;
+ int fpscr_offset;
+ int fpscr_size;
+};
+
+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. */
+
+extern void ppc_supply_gregset (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *gregs, size_t len);
+
+/* Supply register REGNUM in the floating-point register set REGSET
+ from the buffer specified by FPREGS and LEN to register cache
+ REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
+
+extern void ppc_supply_fpregset (const struct regset *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
+ REGSET. */
+
+extern void ppc_collect_gregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *gregs, size_t len);
+
+/* Collect register REGNUM in the floating-point register set
+ REGSET, from register cache REGCACHE into the buffer specified by
+ FPREGS and LEN. If REGNUM is -1, do this for all registers in
+ REGSET. */
+
+extern void ppc_collect_fpregset (const struct regset *regset,
+ 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. */
+
+/* ELF ABI version used by the inferior. */
+enum powerpc_elf_abi
+{
+ POWERPC_ELF_AUTO,
+ POWERPC_ELF_V1,
+ POWERPC_ELF_V2,
+ POWERPC_ELF_LAST
+};
+
+/* 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
+};
+
+/* long double ABI version used by the inferior. */
+enum powerpc_long_double_abi
+{
+ POWERPC_LONG_DOUBLE_AUTO,
+ POWERPC_LONG_DOUBLE_IBM128,
+ POWERPC_LONG_DOUBLE_IEEE128,
+ POWERPC_LONG_DOUBLE_LAST
+};
struct gdbarch_tdep
{
- int wordsize; /* size in bytes of fixed-point word */
- int *regoff; /* byte offsets in register arrays */
- const struct reg *regs; /* from current variant */
+ int wordsize; /* Size in bytes of fixed-point word. */
+ int soft_float; /* Avoid FP registers for arguments? */
+
+ enum powerpc_elf_abi elf_abi; /* ELF ABI version. */
+
+ /* Format to use for the "long double" data type. */
+ enum powerpc_long_double_abi long_double_abi;
+
+ /* 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_gplast_regnum; /* GPR register 31 */
int ppc_toc_regnum; /* TOC register */
int ppc_ps_regnum; /* Processor (or machine) status (%msr) */
int ppc_cr_regnum; /* Condition register */
int ppc_lr_regnum; /* Link register */
int ppc_ctr_regnum; /* Count register */
int ppc_xer_regnum; /* Integer exception register */
- int ppc_fpscr_regnum; /* Floating point status and condition
- register */
- int ppc_mq_regnum; /* Multiply/Divide extension register */
- int ppc_vr0_regnum; /* First AltiVec register */
- int ppc_vrsave_regnum; /* Last AltiVec register */
- int ppc_ev0_regnum; /* First ev register */
- int ppc_ev31_regnum; /* Last ev register */
- int lr_frame_offset; /* Offset to ABI specific location where
- link register is saved. */
+
+ /* 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; /* 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. */
+
+ /* Altivec registers. */
+ int ppc_vr0_regnum; /* First AltiVec register. */
+ int ppc_vrsave_regnum; /* Last AltiVec register. */
+
+ /* Altivec pseudo-register vX aliases for the raw vrX
+ registers. */
+ int ppc_v0_alias_regnum;
+
+ /* SPE registers. */
+ int ppc_ev0_upper_regnum; /* First GPR upper half register. */
+ int ppc_ev0_regnum; /* First ev register. */
+ int ppc_acc_regnum; /* SPE 'acc' register. */
+ int ppc_spefscr_regnum; /* SPE 'spefscr' register. */
+
+ /* Program Priority Register. */
+ int ppc_ppr_regnum;
+
+ /* Data Stream Control Register. */
+ int ppc_dscr_regnum;
+
+ /* Target Address Register. */
+ int ppc_tar_regnum;
+
+ /* Decimal 128 registers. */
+ int ppc_dl0_regnum; /* First Decimal128 argument register pair. */
+
+ int have_ebb;
+
+ /* PMU registers. */
+ int ppc_mmcr0_regnum;
+ int ppc_mmcr2_regnum;
+ int ppc_siar_regnum;
+ int ppc_sdar_regnum;
+ int ppc_sier_regnum;
+
+ /* Hardware Transactional Memory registers. */
+ int have_htm_spr;
+ int have_htm_core;
+ int have_htm_fpu;
+ int have_htm_altivec;
+ int have_htm_vsx;
+ int ppc_cppr_regnum;
+ int ppc_cdscr_regnum;
+ int ppc_ctar_regnum;
+
+ /* HTM pseudo registers. */
+ int ppc_cdl0_regnum;
+ int ppc_cvsr0_regnum;
+ int ppc_cefpr0_regnum;
+
+ /* 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;
+
+ int (*ppc_syscall_record) (struct regcache *regcache);
+};
+
+
+/* Constants for register set sizes. */
+enum
+ {
+ 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. */
+ };
+
+
+/* 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_PPR_REGNUM = 172,
+ PPC_DSCR_REGNUM = 173,
+ PPC_TAR_REGNUM = 174,
+
+ /* EBB registers. */
+ PPC_BESCR_REGNUM = 175,
+ PPC_EBBHR_REGNUM = 176,
+ PPC_EBBRR_REGNUM = 177,
+
+ /* PMU registers. */
+ PPC_MMCR0_REGNUM = 178,
+ PPC_MMCR2_REGNUM = 179,
+ PPC_SIAR_REGNUM = 180,
+ PPC_SDAR_REGNUM = 181,
+ PPC_SIER_REGNUM = 182,
+
+ /* Hardware transactional memory registers. */
+ PPC_TFHAR_REGNUM = 183,
+ PPC_TEXASR_REGNUM = 184,
+ PPC_TFIAR_REGNUM = 185,
+
+ PPC_CR0_REGNUM = 186,
+ PPC_CCR_REGNUM = 218,
+ PPC_CXER_REGNUM = 219,
+ PPC_CLR_REGNUM = 220,
+ PPC_CCTR_REGNUM = 221,
+
+ PPC_CF0_REGNUM = 222,
+ PPC_CFPSCR_REGNUM = 254,
+
+ PPC_CVR0_REGNUM = 255,
+ PPC_CVSCR_REGNUM = 287,
+ PPC_CVRSAVE_REGNUM = 288,
+
+ PPC_CVSR0_UPPER_REGNUM = 289,
+
+ PPC_CPPR_REGNUM = 321,
+ PPC_CDSCR_REGNUM = 322,
+ PPC_CTAR_REGNUM = 323,
+ PPC_NUM_REGS
+};
+
+/* Big enough to hold the size of the largest register in bytes. */
+#define PPC_MAX_REGISTER_SIZE 64
+
+#define PPC_IS_EBB_REGNUM(i) \
+ ((i) >= PPC_BESCR_REGNUM && (i) <= PPC_EBBRR_REGNUM)
+
+#define PPC_IS_PMU_REGNUM(i) \
+ ((i) >= PPC_MMCR0_REGNUM && (i) <= PPC_SIER_REGNUM)
+
+#define PPC_IS_TMSPR_REGNUM(i) \
+ ((i) >= PPC_TFHAR_REGNUM && (i) <= PPC_TFIAR_REGNUM)
+
+#define PPC_IS_CKPTGP_REGNUM(i) \
+ ((i) >= PPC_CR0_REGNUM && (i) <= PPC_CCTR_REGNUM)
+
+#define PPC_IS_CKPTFP_REGNUM(i) \
+ ((i) >= PPC_CF0_REGNUM && (i) <= PPC_CFPSCR_REGNUM)
+
+#define PPC_IS_CKPTVMX_REGNUM(i) \
+ ((i) >= PPC_CVR0_REGNUM && (i) <= PPC_CVRSAVE_REGNUM)
+
+#define PPC_IS_CKPTVSX_REGNUM(i) \
+ ((i) >= PPC_CVSR0_UPPER_REGNUM && (i) < (PPC_CVSR0_UPPER_REGNUM + 32))
+
+/* An instruction to match. */
+
+struct ppc_insn_pattern
+{
+ unsigned int mask; /* mask the insn with this... */
+ unsigned int data; /* ...and see if it matches this. */
+ int optional; /* If non-zero, this insn may be absent. */
};
-#endif
+extern int ppc_insns_match_pattern (struct frame_info *frame, CORE_ADDR pc,
+ const struct ppc_insn_pattern *pattern,
+ unsigned int *insns);
+extern CORE_ADDR ppc_insn_d_field (unsigned int insn);
+
+extern CORE_ADDR ppc_insn_ds_field (unsigned int insn);
+
+extern int ppc_process_record (struct gdbarch *gdbarch,
+ struct regcache *regcache, CORE_ADDR addr);
+
+/* Instruction size. */
+#define PPC_INSN_SIZE 4
+
+/* Estimate for the maximum number of instructions in a function epilogue. */
+#define PPC_MAX_EPILOGUE_INSTRUCTIONS 52
+
+#endif /* ppc-tdep.h */