/* 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., 675 Mass Ave, Cambridge, MA 02139, 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)=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 */