| /* Target-dependent code for GDB, the GNU debugger. |
| |
| Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 |
| 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 |
| (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, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #ifndef PPC_TDEP_H |
| #define PPC_TDEP_H |
| |
| struct gdbarch; |
| struct frame_info; |
| struct value; |
| struct regcache; |
| struct type; |
| |
| /* From ppc-linux-tdep.c... */ |
| enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch, |
| struct type *valtype, |
| struct regcache *regcache, |
| gdb_byte *readbuf, |
| const gdb_byte *writebuf); |
| enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch, |
| struct type *valtype, |
| struct regcache *regcache, |
| 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, |
| int struct_return, |
| 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, |
| 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, |
| gdb_byte *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 *valtype, |
| struct regcache *regcache, |
| gdb_byte *readbuf, |
| const gdb_byte *writebuf); |
| |
| /* From rs6000-tdep.c... */ |
| int altivec_register_p (int regno); |
| int spe_register_p (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); |
| |
| /* Register set description. */ |
| |
| struct ppc_reg_offsets |
| { |
| /* General-purpose registers. */ |
| int r0_offset; |
| 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; |
| |
| /* AltiVec registers. */ |
| int vr0_offset; |
| int vscr_offset; |
| int vrsave_offset; |
| }; |
| |
| /* 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); |
| |
| /* 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); |
| |
| /* Private data that this module attaches to struct gdbarch. */ |
| |
| struct gdbarch_tdep |
| { |
| int wordsize; /* size in bytes of fixed-point word */ |
| const struct reg *regs; /* from current variant */ |
| int ppc_gp0_regnum; /* GPR register 0 */ |
| 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 */ |
| |
| /* 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 */ |
| |
| /* Segment registers. */ |
| int ppc_sr0_regnum; /* segment register 0 */ |
| |
| /* Multiplier-Quotient Register (older POWER architectures only). */ |
| int ppc_mq_regnum; |
| |
| /* 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 */ |
| |
| /* 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; |
| }; |
| |
| |
| /* 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 */ |
| }; |
| |
| |
| /* Constants for SPR register numbers. These are *not* GDB register |
| numbers: they are the numbers used in the PowerPC ISA itself to |
| refer to these registers. |
| |
| This table includes all the SPRs from all the variants I could find |
| documentation for. |
| |
| There may be registers from different PowerPC variants assigned the |
| same number, but that's fine: GDB and the SIM always use the |
| numbers in the context of a particular variant, so it's not |
| ambiguous. |
| |
| We need to deviate from the naming pattern when variants have |
| special-purpose registers of the same name, but with different |
| numbers. Fortunately, this is rare: look below to see how we |
| handle the 'tcr' registers on the 403/403GX and 602. */ |
| |
| enum |
| { |
| ppc_spr_mq = 0, |
| ppc_spr_xer = 1, |
| ppc_spr_rtcu = 4, |
| ppc_spr_rtcl = 5, |
| ppc_spr_lr = 8, |
| ppc_spr_ctr = 9, |
| ppc_spr_cnt = 9, |
| ppc_spr_dsisr = 18, |
| ppc_spr_dar = 19, |
| ppc_spr_dec = 22, |
| ppc_spr_sdr1 = 25, |
| ppc_spr_srr0 = 26, |
| ppc_spr_srr1 = 27, |
| ppc_spr_eie = 80, |
| ppc_spr_eid = 81, |
| ppc_spr_nri = 82, |
| ppc_spr_sp = 102, |
| ppc_spr_cmpa = 144, |
| ppc_spr_cmpb = 145, |
| ppc_spr_cmpc = 146, |
| ppc_spr_cmpd = 147, |
| ppc_spr_icr = 148, |
| ppc_spr_der = 149, |
| ppc_spr_counta = 150, |
| ppc_spr_countb = 151, |
| ppc_spr_cmpe = 152, |
| ppc_spr_cmpf = 153, |
| ppc_spr_cmpg = 154, |
| ppc_spr_cmph = 155, |
| ppc_spr_lctrl1 = 156, |
| ppc_spr_lctrl2 = 157, |
| ppc_spr_ictrl = 158, |
| ppc_spr_bar = 159, |
| ppc_spr_vrsave = 256, |
| ppc_spr_sprg0 = 272, |
| ppc_spr_sprg1 = 273, |
| ppc_spr_sprg2 = 274, |
| ppc_spr_sprg3 = 275, |
| ppc_spr_asr = 280, |
| ppc_spr_ear = 282, |
| ppc_spr_tbl = 284, |
| ppc_spr_tbu = 285, |
| ppc_spr_pvr = 287, |
| ppc_spr_spefscr = 512, |
| ppc_spr_ibat0u = 528, |
| ppc_spr_ibat0l = 529, |
| ppc_spr_ibat1u = 530, |
| ppc_spr_ibat1l = 531, |
| ppc_spr_ibat2u = 532, |
| ppc_spr_ibat2l = 533, |
| ppc_spr_ibat3u = 534, |
| ppc_spr_ibat3l = 535, |
| ppc_spr_dbat0u = 536, |
| ppc_spr_dbat0l = 537, |
| ppc_spr_dbat1u = 538, |
| ppc_spr_dbat1l = 539, |
| ppc_spr_dbat2u = 540, |
| ppc_spr_dbat2l = 541, |
| ppc_spr_dbat3u = 542, |
| ppc_spr_dbat3l = 543, |
| ppc_spr_ic_cst = 560, |
| ppc_spr_ic_adr = 561, |
| ppc_spr_ic_dat = 562, |
| ppc_spr_dc_cst = 568, |
| ppc_spr_dc_adr = 569, |
| ppc_spr_dc_dat = 570, |
| ppc_spr_dpdr = 630, |
| ppc_spr_dpir = 631, |
| ppc_spr_immr = 638, |
| ppc_spr_mi_ctr = 784, |
| ppc_spr_mi_ap = 786, |
| ppc_spr_mi_epn = 787, |
| ppc_spr_mi_twc = 789, |
| ppc_spr_mi_rpn = 790, |
| ppc_spr_mi_cam = 816, |
| ppc_spr_mi_ram0 = 817, |
| ppc_spr_mi_ram1 = 818, |
| ppc_spr_md_ctr = 792, |
| ppc_spr_m_casid = 793, |
| ppc_spr_md_ap = 794, |
| ppc_spr_md_epn = 795, |
| ppc_spr_m_twb = 796, |
| ppc_spr_md_twc = 797, |
| ppc_spr_md_rpn = 798, |
| ppc_spr_m_tw = 799, |
| ppc_spr_mi_dbcam = 816, |
| ppc_spr_mi_dbram0 = 817, |
| ppc_spr_mi_dbram1 = 818, |
| ppc_spr_md_dbcam = 824, |
| ppc_spr_md_cam = 824, |
| ppc_spr_md_dbram0 = 825, |
| ppc_spr_md_ram0 = 825, |
| ppc_spr_md_dbram1 = 826, |
| ppc_spr_md_ram1 = 826, |
| ppc_spr_ummcr0 = 936, |
| ppc_spr_upmc1 = 937, |
| ppc_spr_upmc2 = 938, |
| ppc_spr_usia = 939, |
| ppc_spr_ummcr1 = 940, |
| ppc_spr_upmc3 = 941, |
| ppc_spr_upmc4 = 942, |
| ppc_spr_zpr = 944, |
| ppc_spr_pid = 945, |
| ppc_spr_mmcr0 = 952, |
| ppc_spr_pmc1 = 953, |
| ppc_spr_sgr = 953, |
| ppc_spr_pmc2 = 954, |
| ppc_spr_dcwr = 954, |
| ppc_spr_sia = 955, |
| ppc_spr_mmcr1 = 956, |
| ppc_spr_pmc3 = 957, |
| ppc_spr_pmc4 = 958, |
| ppc_spr_sda = 959, |
| ppc_spr_tbhu = 972, |
| ppc_spr_tblu = 973, |
| ppc_spr_dmiss = 976, |
| ppc_spr_dcmp = 977, |
| ppc_spr_hash1 = 978, |
| ppc_spr_hash2 = 979, |
| ppc_spr_icdbdr = 979, |
| ppc_spr_imiss = 980, |
| ppc_spr_esr = 980, |
| ppc_spr_icmp = 981, |
| ppc_spr_dear = 981, |
| ppc_spr_rpa = 982, |
| ppc_spr_evpr = 982, |
| ppc_spr_cdbcr = 983, |
| ppc_spr_tsr = 984, |
| ppc_spr_602_tcr = 984, |
| ppc_spr_403_tcr = 986, |
| ppc_spr_ibr = 986, |
| ppc_spr_pit = 987, |
| ppc_spr_esasrr = 988, |
| ppc_spr_tbhi = 988, |
| ppc_spr_tblo = 989, |
| ppc_spr_srr2 = 990, |
| ppc_spr_sebr = 990, |
| ppc_spr_srr3 = 991, |
| ppc_spr_ser = 991, |
| ppc_spr_hid0 = 1008, |
| ppc_spr_dbsr = 1008, |
| ppc_spr_hid1 = 1009, |
| ppc_spr_iabr = 1010, |
| ppc_spr_dbcr = 1010, |
| ppc_spr_iac1 = 1012, |
| ppc_spr_dabr = 1013, |
| ppc_spr_iac2 = 1013, |
| ppc_spr_dac1 = 1014, |
| ppc_spr_dac2 = 1015, |
| ppc_spr_l2cr = 1017, |
| ppc_spr_dccr = 1018, |
| ppc_spr_ictc = 1019, |
| ppc_spr_iccr = 1019, |
| ppc_spr_thrm1 = 1020, |
| ppc_spr_pbl1 = 1020, |
| ppc_spr_thrm2 = 1021, |
| ppc_spr_pbu1 = 1021, |
| ppc_spr_thrm3 = 1022, |
| ppc_spr_pbl2 = 1022, |
| ppc_spr_fpecr = 1022, |
| ppc_spr_lt = 1022, |
| ppc_spr_pir = 1023, |
| ppc_spr_pbu2 = 1023 |
| }; |
| |
| /* 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 */ |
