| /* Parameters for NYU Ultracomputer 29000 target, for GDB, the GNU debugger. |
| Copyright 1990, 1991 Free Software Foundation, Inc. |
| Contributed by David Wood @ New York University (wood@nyu.edu). |
| |
| 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| /* This file includes tm-a29k.h, but predefines REGISTER_NAMES and |
| related macros. The file supports a a29k running our flavor of |
| Unix on our Ultra3 PE Boards. */ |
| |
| /* Byte order is configurable, but this machine runs big-endian. */ |
| #define TARGET_BYTE_ORDER BIG_ENDIAN |
| |
| /* Initializer for an array of names of registers. |
| There should be NUM_REGS strings in this initializer. |
| */ |
| #define NUM_REGS (EXO_REGNUM + 1) |
| |
| #define REGISTER_NAMES { \ |
| "gr1", \ |
| "gr64", "gr65", "gr66", "gr67", "gr68", "gr69", "gr70", "gr71", "gr72", \ |
| "gr73", "gr74", "gr75", "gr76", "gr77", "gr78", "gr79", "gr80", "gr81", \ |
| "gr82", "gr83", "gr84", "gr85", "gr86", "gr87", "gr88", "gr89", "gr90", \ |
| "gr91", "gr92", "gr93", "gr94", "gr95", \ |
| "gr96", "gr97", "gr98", "gr99", "gr100", "gr101", "gr102", "gr103", "gr104", \ |
| "gr105", "gr106", "gr107", "gr108", "gr109", "gr110", "gr111", "gr112", \ |
| "gr113", "gr114", "gr115", "gr116", "gr117", "gr118", "gr119", "gr120", \ |
| "gr121", "gr122", "gr123", "gr124", "gr125", "gr126", "gr127", \ |
| "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", "lr8", "lr9", \ |
| "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", "lr16", "lr17", "lr18", \ |
| "lr19", "lr20", "lr21", "lr22", "lr23", "lr24", "lr25", "lr26", "lr27", \ |
| "lr28", "lr29", "lr30", "lr31", "lr32", "lr33", "lr34", "lr35", "lr36", \ |
| "lr37", "lr38", "lr39", "lr40", "lr41", "lr42", "lr43", "lr44", "lr45", \ |
| "lr46", "lr47", "lr48", "lr49", "lr50", "lr51", "lr52", "lr53", "lr54", \ |
| "lr55", "lr56", "lr57", "lr58", "lr59", "lr60", "lr61", "lr62", "lr63", \ |
| "lr64", "lr65", "lr66", "lr67", "lr68", "lr69", "lr70", "lr71", "lr72", \ |
| "lr73", "lr74", "lr75", "lr76", "lr77", "lr78", "lr79", "lr80", "lr81", \ |
| "lr82", "lr83", "lr84", "lr85", "lr86", "lr87", "lr88", "lr89", "lr90", \ |
| "lr91", "lr92", "lr93", "lr94", "lr95", "lr96", "lr97", "lr98", "lr99", \ |
| "lr100", "lr101", "lr102", "lr103", "lr104", "lr105", "lr106", "lr107", \ |
| "lr108", "lr109", "lr110", "lr111", "lr112", "lr113", "lr114", "lr115", \ |
| "lr116", "lr117", "lr118", "lr119", "lr120", "lr121", "lr122", "lr123", \ |
| "lr124", "lr125", "lr126", "lr127", \ |
| "vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr", \ |
| "pc0", "pc1", "pc2", "mmu", "lru", \ |
| "ipc", "ipa", "ipb", "q", "alu", "bp", "fc", "cr", \ |
| "fpe", "int", "fps", "exo" } |
| |
| |
| #ifdef KERNEL_DEBUGGING |
| # define PADDR_U_REGNUM 22 /* gr86 */ |
| # define RETURN_REGNUM GR64_REGNUM |
| #else |
| # define RETURN_REGNUM GR96_REGNUM |
| #endif /* KERNEL_DEBUGGING */ |
| |
| |
| /* Should rename all GR96_REGNUM to RETURN_REGNUM */ |
| #define GR1_REGNUM (0) |
| #define GR64_REGNUM 1 |
| #define GR96_REGNUM (GR64_REGNUM + 32) |
| /* This needs to be the memory stack pointer, not the register stack pointer, |
| to make call_function work right. */ |
| #define SP_REGNUM MSP_REGNUM |
| |
| #define FP_REGNUM (LR0_REGNUM + 1) /* lr1 */ |
| /* Large Return Pointer */ |
| #define LRP_REGNUM (123 - 96 + RETURN_REGNUM) |
| /* Static link pointer */ |
| #define SLP_REGNUM (124 - 96 + RETURN_REGNUM) |
| /* Memory Stack Pointer. */ |
| #define MSP_REGNUM (125 - 96 + RETURN_REGNUM) |
| /* Register allocate bound. */ |
| #define RAB_REGNUM (126 - 96 + RETURN_REGNUM) |
| /* Register Free Bound. */ |
| #define RFB_REGNUM (127 - 96 + RETURN_REGNUM) |
| /* Register Stack Pointer. */ |
| #define RSP_REGNUM GR1_REGNUM |
| #define LR0_REGNUM ( 32 + GR96_REGNUM) |
| |
| /* Protected Special registers */ |
| #define VAB_REGNUM (LR0_REGNUM + 128) |
| #define OPS_REGNUM (VAB_REGNUM + 1) |
| #define CPS_REGNUM (VAB_REGNUM + 2) |
| #define CFG_REGNUM (VAB_REGNUM + 3) |
| #define CHA_REGNUM (VAB_REGNUM + 4) |
| #define CHD_REGNUM (VAB_REGNUM + 5) |
| #define CHC_REGNUM (VAB_REGNUM + 6) |
| #define RBP_REGNUM (VAB_REGNUM + 7) |
| #define TMC_REGNUM (VAB_REGNUM + 8) |
| #define TMR_REGNUM (VAB_REGNUM + 9) |
| #define NPC_REGNUM (VAB_REGNUM + 10) /* pc0 */ |
| #define PC_REGNUM (VAB_REGNUM + 11) /* pc1 */ |
| #define PC2_REGNUM (VAB_REGNUM + 12) /* pc2 */ |
| #define MMU_REGNUM (VAB_REGNUM + 13) |
| #define LRU_REGNUM (VAB_REGNUM + 14) |
| /* Register sequence gap */ |
| /* Unprotected Special registers */ |
| #define IPC_REGNUM (LRU_REGNUM + 1) |
| #define IPA_REGNUM (IPC_REGNUM + 1) |
| #define IPB_REGNUM (IPC_REGNUM + 2) |
| #define Q_REGNUM (IPC_REGNUM + 3) |
| #define ALU_REGNUM (IPC_REGNUM + 4) |
| #define PS_REGNUM ALU_REGNUM |
| #define BP_REGNUM (IPC_REGNUM + 5) |
| #define FC_REGNUM (IPC_REGNUM + 6) |
| #define CR_REGNUM (IPC_REGNUM + 7) |
| /* Register sequence gap */ |
| #define FPE_REGNUM (CR_REGNUM + 1) |
| #define INT_REGNUM (FPE_REGNUM + 1) |
| #define FPS_REGNUM (FPE_REGNUM + 2) |
| /* Register sequence gap */ |
| #define EXO_REGNUM (FPS_REGNUM + 1) |
| |
| /* Special register #x. */ |
| #define SR_REGNUM(x) \ |
| ((x) < 15 ? VAB_REGNUM + (x) \ |
| : (x) >= 128 && (x) < 136 ? IPC_REGNUM + (x-128) \ |
| : (x) >= 160 && (x) < 163 ? FPE_REGNUM + (x-160) \ |
| : (x) == 164 ? EXO_REGNUM \ |
| : (error ("Internal error in SR_REGNUM"), 0)) |
| |
| #ifndef KERNEL_DEBUGGING |
| /* |
| * This macro defines the register numbers (from REGISTER_NAMES) that |
| * are effectively unavailable to the user through ptrace(). It allows |
| * us to include the whole register set in REGISTER_NAMES (inorder to |
| * better support remote debugging). If it is used in |
| * fetch/store_inferior_registers() gdb will not complain about I/O errors |
| * on fetching these registers. If all registers in REGISTER_NAMES |
| * are available, then return false (0). |
| */ |
| #define CANNOT_STORE_REGISTER(regno) \ |
| (((regno)>=GR64_REGNUM && (regno)<GR64_REGNUM+32) || \ |
| ((regno)==VAB_REGNUM) || \ |
| ((regno)==OPS_REGNUM) || \ |
| ((regno)>=CFG_REGNUM && (regno)<=TMR_REGNUM) || \ |
| ((regno)==MMU_REGNUM) || \ |
| ((regno)==LRU_REGNUM) || \ |
| ((regno)>=ALU_REGNUM) || \ |
| ((regno)==CR_REGNUM) || \ |
| ((regno)==EXO_REGNUM)) |
| #define CANNOT_FETCH_REGISTER(regno) CANNOT_STORE_REGISTER(regno) |
| #endif /* KERNEL_DEBUGGING */ |
| |
| /* |
| * Converts an sdb register number to an internal gdb register number. |
| * Currently under gcc, gr96->0...gr128->31...lr0->32...lr127->159, or... |
| * gr64->0...gr95->31, lr0->32...lr127->159. |
| */ |
| #define SDB_REG_TO_REGNUM(value) (((value)<32) ? ((value)+RETURN_REGNUM) : \ |
| ((value)-32+LR0_REGNUM)) |
| |
| #ifdef KERNEL_DEBUGGING |
| /* ublock virtual address as defined in our sys/param.h */ |
| /* FIXME: Should get this from sys/param.h */ |
| # define UVADDR ((32*0x100000)-8192) |
| #endif |
| |
| /* |
| * Are we in sigtramp(), needed in infrun.c. Specific to ultra3, because |
| * we take off the leading '_'. |
| */ |
| #if !defined(KERNEL_DEBUGGING) |
| #ifdef SYM1 |
| # define IN_SIGTRAMP(pc, name) (name && STREQ ("sigtramp", name)) |
| #else |
| Need to define IN_SIGTRAMP() for sym2. |
| #endif |
| #endif /* !KERNEL_DEBUGGING */ |
| |
| #include "a29k/tm-a29k.h" |
| |
| /**** The following are definitions that override those in tm-a29k.h ****/ |
| |
| /* This sequence of words is the instructions |
| mtsrim cr, 15 |
| loadm 0, 0, lr2, msp ; load first 16 words of arguments into registers |
| add msp, msp, 16 * 4 ; point to the remaining arguments |
| CONST_INSN: |
| const gr96,inf |
| consth gr96,inf |
| calli lr0, gr96 |
| aseq 0x40,gr1,gr1 ; nop |
| asneq 0x50,gr1,gr1 ; breakpoint |
| When KERNEL_DEBUGGIN is defined, msp -> gr93, gr96 -> gr64, |
| 7d -> 5d, 60 -> 40 |
| */ |
| |
| /* Position of the "const" instruction within CALL_DUMMY in bytes. */ |
| #undef CALL_DUMMY |
| #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER |
| #ifdef KERNEL_DEBUGGING /* gr96 -> gr64 */ |
| # define CALL_DUMMY {0x0400870f, 0x3600825d, 0x155d5d40, 0x03ff40ff, \ |
| 0x02ff40ff, 0xc8008040, 0x70400101, 0x72500101} |
| #else |
| # define CALL_DUMMY {0x0400870f, 0x3600827d, 0x157d7d40, 0x03ff60ff, \ |
| 0x02ff60ff, 0xc8008060, 0x70400101, 0x72500101} |
| #endif /* KERNEL_DEBUGGING */ |
| #else /* Byte order differs. */ |
| you lose |
| #endif /* Byte order differs. */ |
| |
| #if !defined(KERNEL_DEBUGGING) |
| # ifdef SYM1 |
| # undef DECR_PC_AFTER_BREAK |
| # define DECR_PC_AFTER_BREAK 0 /* Sym1 kernel does the decrement */ |
| # else |
| ->"ULTRA3 running other than sym1 OS"!; |
| # endif |
| #endif /* !KERNEL_DEBUGGING */ |
| |
