/* Target-dependent code for GDB, the GNU debugger.
- Copyright 2000
- Free Software Foundation, Inc.
+
+ Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation,
+ Inc.
This file is part of GDB.
#ifndef PPC_TDEP_H
#define PPC_TDEP_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 *);
-int ppc_sysv_abi_use_struct_convention (int, struct type *);
-int ppc_sysv_abi_broken_use_struct_convention (int, struct type *);
-CORE_ADDR ppc_sysv_abi_push_arguments (int, struct value **, CORE_ADDR, int,
- CORE_ADDR);
+enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
+ struct type *valtype,
+ struct regcache *regcache,
+ void *readbuf,
+ const void *writebuf);
+enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
+ struct type *valtype,
+ struct regcache *regcache,
+ void *readbuf,
+ const void *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, 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 *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);
+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 */
- int osabi; /* OS / ABI from ELF header */
- int *regoff; /* byte offsets in register arrays */
const struct reg *regs; /* from current variant */
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 */
+
+ /* On PPC and RS6000 variants that have no floating-point
+ registers, the next two members will be -1. */
+ int ppc_fp0_regnum; /* floating-point register 0 */
int ppc_fpscr_regnum; /* Floating point status and condition
register */
+
+ int ppc_sr0_regnum; /* segment register 0, or -1 on
+ variants that have no segment
+ registers. */
+
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_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. */
+
+ /* 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
+ };
+
#endif