From f51dbfbd4e5a0a38ac9623b3b44116dd600ec6c9 Mon Sep 17 00:00:00 2001 From: Zdenek Radouch Date: Fri, 20 Nov 1998 00:34:30 +0000 Subject: [PATCH] Replacing a bogus file with a semi-bogus one (sharing through devo). --- gdb/config/fr30/tm-fr30.h | 849 ++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 703 insertions(+), 146 deletions(-) diff --git a/gdb/config/fr30/tm-fr30.h b/gdb/config/fr30/tm-fr30.h index 7a067d1..956febf 100644 --- a/gdb/config/fr30/tm-fr30.h +++ b/gdb/config/fr30/tm-fr30.h @@ -1,5 +1,4 @@ -/* Parameters for execution on a Mitsubishi fr30 processor. - Copyright 1996, 1997 Free Software Foundation, Inc. +/* Parameters for execution on a Fujitsu FR30 processor. This file is part of GDB. @@ -17,106 +16,521 @@ 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. */ -/* Used by mswin. */ -#define TARGET_FR30 1 +#define FR30_GENREGS 16 +#define FR30_DEDICATEDREGS 8 +#define FR30_REGSIZE 4 /* bytes */ -/* mvs_check TARGET_BYTE_ORDER BIG_ENDIAN */ -#define TARGET_BYTE_ORDER BIG_ENDIAN +#define NUM_REGS (FR30_GENREGS + FR30_DEDICATEDREGS) +#define REGISTER_BYTES ((FR30_GENREGS + FR30_DEDICATEDREGS)*FR30_REGSIZE) + +/* Index within `registers' of the first byte of the space for + register N. */ +#define REGISTER_BYTE(N) ((N) * FR30_REGSIZE) -/* mvs_check REGISTER_NAMES */ +/* Initializer for an array of names of registers. + There should be NUM_REGS strings in this initializer. */ #define REGISTER_NAMES \ -{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ - "r8", "r9", "r10", "r11", "r12", "fp", "lr", "sp", \ - "psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch", \ - /* "cond", "sm", "bsm", "ie", "bie", "bcarry", */ \ -} -/* mvs_check NUM_REGS */ -#define NUM_REGS 24 - -/* mvs_check REGISTER_SIZE */ -#define REGISTER_SIZE 4 -/* mvs_check MAX_REGISTER_RAW_SIZE */ -#define MAX_REGISTER_RAW_SIZE 4 - -/* mvs_check *_REGNUM */ -#define R0_REGNUM 0 -#define STRUCT_RETURN_REGNUM 0 -#define ARG0_REGNUM 0 -#define ARGLAST_REGNUM 3 -#define V0_REGNUM 0 -#define V1_REGNUM 1 -#define FP_REGNUM 13 -#define RP_REGNUM 14 -#define SP_REGNUM 15 -#define PSW_REGNUM 16 -#define CBR_REGNUM 17 -#define SPI_REGNUM 18 -#define SPU_REGNUM 19 -#define BPC_REGNUM 20 -#define PC_REGNUM 21 -#define ACCL_REGNUM 22 -#define ACCH_REGNUM 23 - -/* mvs_check REGISTER_BYTES */ -#define REGISTER_BYTES (NUM_REGS * 4) - -/* mvs_check REGISTER_VIRTUAL_TYPE */ -#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int - -/* mvs_check REGISTER_BYTE */ -#define REGISTER_BYTE(REG) ((REG) * 4) -/* mvs_check REGISTER_VIRTUAL_SIZE */ -#define REGISTER_VIRTUAL_SIZE(REG) 4 -/* mvs_check REGISTER_RAW_SIZE */ -#define REGISTER_RAW_SIZE(REG) 4 - -/* mvs_check MAX_REGISTER_VIRTUAL_SIZE */ -#define MAX_REGISTER_VIRTUAL_SIZE 4 - -/* mvs_check BREAKPOINT */ -#define BREAKPOINT {0x10, 0xf1} - -/* mvs_no_check FUNCTION_START_OFFSET */ +{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", \ + "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ + "pc", "ps", "tbr", "rp", "ssp", "usp", "mdh", "mdl" } + +/* Offset from address of function to start of its code. + Zero on most machines. */ #define FUNCTION_START_OFFSET 0 -/* mvs_check DECR_PC_AFTER_BREAK */ +/* Amount PC must be decremented by after a breakpoint. + This is often the number of bytes in BREAKPOINT + but not always. */ + #define DECR_PC_AFTER_BREAK 0 -/* mvs_check INNER_THAN */ +/* Stack grows downward. */ + #define INNER_THAN < -/* mvs_check SAVED_PC_AFTER_CALL */ -#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM) +#define TARGET_BYTE_ORDER BIG_ENDIAN -#ifdef __STDC__ +#define R4_REGNUM 4 +#define R7_REGNUM 7 +#define FP_REGNUM 14 /* Frame pointer */ +#define SP_REGNUM 15 /* Stack pointer */ +#define PC_REGNUM 16 /* Program counter */ +#define RP_REGNUM 19 /* Return pointer */ + +#define FIRST_ARGREG R4_REGNUM /* first arg (or struct ret val addr) */ +#define LAST_ARGREG R7_REGNUM /* fourth (or third arg) */ +#define RETVAL_REG R4_REGNUM /* return vaue */ + +/* Say how long (ordinary) registers are. This is a piece of bogosity + used in push_word and a few other places; REGISTER_RAW_SIZE is the + real way to know how big a register is. */ +#define REGISTER_SIZE FR30_REGSIZE + +/* Number of bytes of storage in the actual machine representation + for register N. */ +#define REGISTER_RAW_SIZE(N) FR30_REGSIZE + +/* Largest value REGISTER_RAW_SIZE can have. */ +#define MAX_REGISTER_RAW_SIZE FR30_REGSIZE + +/* Number of bytes of storage in the program's representation + for register N. */ +#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N) + +/* Largest value REGISTER_VIRTUAL_SIZE can have. */ +#define MAX_REGISTER_VIRTUAL_SIZE FR30_REGSIZE + +extern void fr30_pop_frame PARAMS ((void)); +/* XXX do we need the parameter ? */ +#define POP_FRAME fr30_pop_frame() + +/* Number of bytes at start of arglist that are not really args. */ +#define FRAME_ARGS_SKIP 0 + +/* Return the GDB type object for the "standard" data type + of data in register N. */ +#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int + +/* Extract from an array REGBUF containing the (raw) register state + a function return value of type TYPE, and copy that, in virtual format, + into VALBUF. */ +#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ + memcpy (VALBUF, REGBUF + REGISTER_BYTE(RETVAL_REG), TYPE_LENGTH (TYPE)) + +/* Extract from an array REGBUF containing the (raw) register state + the address in which a function should return its structure value, + as a CORE_ADDR (or an expression that can be used as one). */ +#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ + extract_address (REGBUF + REGISTER_BYTE (RETVAL_REG), \ + REGISTER_RAW_SIZE (RETVAL_REG)) + + +#define FRAME_ARGS_ADDRESS(fi) (fi->frame) +#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) + +/* Return number of args passed to a frame. + Can return -1, meaning no way to tell. */ +#define FRAME_NUM_ARGS(numargs, fi) (numargs = -1) + +#ifdef __STDC__ /* Forward decls for prototypes */ struct frame_info; struct frame_saved_regs; struct type; struct value; #endif +#define EXTRA_FRAME_INFO struct frame_saved_regs fsr; + +extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi)); +#define FRAME_CHAIN(fi) fr30_frame_chain (fi) + +extern CORE_ADDR fr30_frame_saved_pc PARAMS ((struct frame_info *)); +#define FRAME_SAVED_PC(fi) (fr30_frame_saved_pc (fi)) + +#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM) + +extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc)); +#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc) + +/* Write into appropriate registers a function return value + of type TYPE, given in virtual format. */ + +#define STORE_RETURN_VALUE(TYPE,VALBUF) \ + write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE)) + +/* Put here the code to store, into a struct frame_saved_regs, + the addresses of the saved registers of frame described by FRAME_INFO. + This includes special registers such as pc and fp saved in special + ways in the stack frame. sp is even more special: + the address we return for it IS the sp for the next frame. */ +#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr + +/* Use INT #BREAKPOINT_INTNUM instruction for breakpoint */ +#define FR30_BREAKOP 0x1f /* opcode, type D instruction */ +#define BREAKPOINT_INTNUM 9 /* one of the reserved traps */ +#define BREAKPOINT {FR30_BREAKOP, BREAKPOINT_INTNUM} + + + + + + + + +#if(0) /* Z.R. */ + +ARM example + +#ifdef __STDC__ /* Forward decls for prototypes */ +struct type; +struct value; +#endif + +#define TARGET_BYTE_ORDER_SELECTABLE + +/* IEEE format floating point */ + +#define IEEE_FLOAT + +/* FIXME: may need a floatformat_ieee_double_bigbyte_littleword format for + BIG_ENDIAN use. -fnf */ + +#define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \ + ? &floatformat_ieee_double_big \ + : &floatformat_ieee_double_littlebyte_bigword) + +/* When reading symbols, we need to zap the low bit of the address, which + may be set to 1 for Thumb functions. */ + +#define SMASH_TEXT_ADDRESS(addr) ((addr) &= ~0x1) + +/* Remove useless bits from addresses in a running program. */ + +CORE_ADDR arm_addr_bits_remove PARAMS ((CORE_ADDR)); + +#define ADDR_BITS_REMOVE(val) (arm_addr_bits_remove (val)) + +/* Offset from address of function to start of its code. + Zero on most machines. */ + +#define FUNCTION_START_OFFSET 0 + +/* Advance PC across any function entry prologue instructions + to reach some "real" code. */ + +extern CORE_ADDR arm_skip_prologue PARAMS ((CORE_ADDR pc)); + +#define SKIP_PROLOGUE(pc) { pc = arm_skip_prologue (pc); } + +/* Immediately after a function call, return the saved pc. + Can't always go through the frames for this because on some machines + the new frame is not set up until the new function executes + some instructions. */ + +#define SAVED_PC_AFTER_CALL(frame) arm_saved_pc_after_call (frame) +struct frame_info; +extern CORE_ADDR arm_saved_pc_after_call PARAMS ((struct frame_info *)); + +/* I don't know the real values for these. */ +#define TARGET_UPAGES UPAGES +#define TARGET_NBPG NBPG + +/* Address of end of stack space. */ + +#define STACK_END_ADDR (0x01000000 - (TARGET_UPAGES * TARGET_NBPG)) + +/* Stack grows downward. */ + +#define INNER_THAN < + +/* Sequence of bytes for breakpoint instruction. */ + +/* !!!! if we're using RDP, then we're inserting breakpoints and storing + their handles instread of what was in memory. It is nice that + this is the same size as a handle - otherwise remote-rdp will + have to change. */ + +#define ARM_LE_BREAKPOINT {0x00,0x00,0x18,0xef} /* BKPT_SWI from */ +#define ARM_BE_BREAKPOINT {0xef,0x18,0x00,0x00} /* BKPT_SWI from */ +#define THUMB_LE_BREAKPOINT {0x18,0xdf} /* swi 24 */ +#define THUMB_BE_BREAKPOINT {0xdf,0x18} /* swi 24 */ + +/* The following has been superseded by BREAKPOINT_FOR_PC, but + is defined merely to keep mem-break.c happy. */ +#define LITTLE_BREAKPOINT ARM_LE_BREAKPOINT +#define BIG_BREAKPOINT ARM_BE_BREAKPOINT + +/* BREAKPOINT_FROM_PC uses the program counter value to determine whether a + 16- or 32-bit breakpoint should be used. It returns a pointer + to a string of bytes that encode a breakpoint instruction, stores + the length of the string to *lenptr, and adjusts the pc (if necessary) to + point to the actual memory location where the breakpoint should be + inserted. */ + +unsigned char * arm_breakpoint_from_pc PARAMS ((CORE_ADDR * pcptr, int * lenptr)); +#define BREAKPOINT_FROM_PC(pcptr, lenptr) arm_breakpoint_from_pc (pcptr, lenptr) + +/* Amount PC must be decremented by after a breakpoint. + This is often the number of bytes in BREAKPOINT + but not always. */ + +#define DECR_PC_AFTER_BREAK 0 + +/* Nonzero if instruction at PC is a return instruction. */ + +#define ABOUT_TO_RETURN(pc) \ + ((read_memory_integer(pc, 4) & 0x0fffffff == 0x01b0f00e) || \ + (read_memory_integer(pc, 4) & 0x0ffff800 == 0x09eba800)) + +/* code to execute to print interesting information about the + * floating point processor (if any) + * No need to define if there is nothing to do. + */ +#define FLOAT_INFO { arm_float_info (); } + +/* Say how long (ordinary) registers are. This is a piece of bogosity + used in push_word and a few other places; REGISTER_RAW_SIZE is the + real way to know how big a register is. */ + +#define REGISTER_SIZE 4 + +/* Number of machine registers */ + +/* Note: I make a fake copy of the pc in register 25 (calling it ps) so + that I can clear the status bits from pc (register 15) */ + +#define NUM_REGS 26 + +/* Initializer for an array of names of registers. + There should be NUM_REGS strings in this initializer. */ + +#define ORIGINAL_REGISTER_NAMES \ +{ "a1", "a2", "a3", "a4", /* 0 1 2 3 */ \ + "v1", "v2", "v3", "v4", /* 4 5 6 7 */ \ + "v5", "v6", "sl", "fp", /* 8 9 10 11 */ \ + "ip", "sp", "lr", "pc", /* 12 13 14 15 */ \ + "f0", "f1", "f2", "f3", /* 16 17 18 19 */ \ + "f4", "f5", "f6", "f7", /* 20 21 22 23 */ \ + "fps","ps" } /* 24 25 */ + +/* These names are the ones which gcc emits, and + I find them less confusing. Toggle between them + using the `othernames' command. */ + +#define ADDITIONAL_REGISTER_NAMES \ +{ "r0", "r1", "r2", "r3", /* 0 1 2 3 */ \ + "r4", "r5", "r6", "r7", /* 4 5 6 7 */ \ + "r8", "r9", "sl", "fp", /* 8 9 10 11 */ \ + "ip", "sp", "lr", "pc", /* 12 13 14 15 */ \ + "f0", "f1", "f2", "f3", /* 16 17 18 19 */ \ + "f4", "f5", "f6", "f7", /* 20 21 22 23 */ \ + "fps","ps" } /* 24 25 */ + +#define REGISTER_NAMES ADDITIONAL_REGISTER_NAMES +#ifndef REGISTER_NAMES +#define REGISTER_NAMES ORIGINAL_REGISTER_NAMES +#endif + +/* Register numbers of various important registers. + Note that some of these values are "real" register numbers, + and correspond to the general registers of the machine, + and some are "phony" register numbers which are too large + to be actual register numbers as far as the user is concerned + but do serve to get the desired values when passed to read_register. */ + +#define A1_REGNUM 0 /* first integer-like argument */ +#define A4_REGNUM 3 /* last integer-like argument */ +#define AP_REGNUM 11 +#define FP_REGNUM 11 /* Contains address of executing stack frame */ +#define SP_REGNUM 13 /* Contains address of top of stack */ +#define LR_REGNUM 14 /* address to return to from a function call */ +#define PC_REGNUM 15 /* Contains program counter */ +#define F0_REGNUM 16 /* first floating point register */ +#define F3_REGNUM 19 /* last floating point argument register */ +#define F7_REGNUM 23 /* last floating point register */ +#define FPS_REGNUM 24 /* floating point status register */ +#define PS_REGNUM 25 /* Contains processor status */ + +#define THUMB_FP_REGNUM 7 /* R7 is frame register on Thumb */ + +#define ARM_NUM_ARG_REGS 4 +#define ARM_LAST_ARG_REGNUM A4_REGNUM +#define ARM_NUM_FP_ARG_REGS 4 +#define ARM_LAST_FP_ARG_REGNUM F3_REGNUM + +/* Instruction condition field values. */ +#define INST_EQ 0x0 +#define INST_NE 0x1 +#define INST_CS 0x2 +#define INST_CC 0x3 +#define INST_MI 0x4 +#define INST_PL 0x5 +#define INST_VS 0x6 +#define INST_VC 0x7 +#define INST_HI 0x8 +#define INST_LS 0x9 +#define INST_GE 0xa +#define INST_LT 0xb +#define INST_GT 0xc +#define INST_LE 0xd +#define INST_AL 0xe +#define INST_NV 0xf + +#define FLAG_N 0x80000000 +#define FLAG_Z 0x40000000 +#define FLAG_C 0x20000000 +#define FLAG_V 0x10000000 + + + +/* Total amount of space needed to store our copies of the machine's + register state, the array `registers'. */ +#define REGISTER_BYTES (16*4 + 12*8 + 4 + 4) + +/* Index within `registers' of the first byte of the space for + register N. */ + +#define REGISTER_BYTE(N) (((N) < F0_REGNUM) ? (N)*4 : \ + (((N) < PS_REGNUM) ? 16*4 + ((N) - 16)*12 : \ + 16*4 + 8*12 + ((N) - FPS_REGNUM) * 4)) + +/* Number of bytes of storage in the actual machine representation + for register N. On the vax, all regs are 4 bytes. */ + +#define REGISTER_RAW_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 12) + +/* Number of bytes of storage in the program's representation + for register N. On the vax, all regs are 4 bytes. */ + +#define REGISTER_VIRTUAL_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 8) + +/* Largest value REGISTER_RAW_SIZE can have. */ + +#define MAX_REGISTER_RAW_SIZE 12 + +/* Largest value REGISTER_VIRTUAL_SIZE can have. */ + +#define MAX_REGISTER_VIRTUAL_SIZE 8 + +/* Nonzero if register N requires conversion + from raw format to virtual format. */ +#define REGISTER_CONVERTIBLE(N) ((unsigned)(N) - F0_REGNUM < 8) + +/* Convert data from raw format for register REGNUM in buffer FROM + to virtual format with type TYPE in buffer TO. */ + +#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ +{ \ + double val; \ + convert_from_extended ((FROM), & val); \ + store_floating ((TO), TYPE_LENGTH (TYPE), val); \ +} + +/* Convert data from virtual format with type TYPE in buffer FROM + to raw format for register REGNUM in buffer TO. */ + +#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ +{ \ + double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \ + convert_to_extended (&val, (TO)); \ +} +/* Return the GDB type object for the "standard" data type + of data in register N. */ + +#define REGISTER_VIRTUAL_TYPE(N) \ + (((unsigned)(N) - F0_REGNUM) < 8 ? builtin_type_double : builtin_type_int) + +/* The system C compiler uses a similar structure return convention to gcc */ + +#define USE_STRUCT_CONVENTION(gcc_p, type) (TYPE_LENGTH (type) > 4) + +/* Store the address of the place in which to copy the structure the + subroutine will return. This is called from call_function. */ + +#define STORE_STRUCT_RETURN(ADDR, SP) \ + { write_register (0, (ADDR)); } + +/* Extract from an array REGBUF containing the (raw) register state + a function return value of type TYPE, and copy that, in virtual format, + into VALBUF. */ + +#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ + if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \ + convert_from_extended (REGBUF + REGISTER_BYTE (F0_REGNUM), VALBUF); \ + else \ + memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE)) + +/* Write into appropriate registers a function return value + of type TYPE, given in virtual format. */ + +#define STORE_RETURN_VALUE(TYPE,VALBUF) \ + if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) { \ + char _buf[MAX_REGISTER_RAW_SIZE]; \ + convert_to_extended (VALBUF, _buf); \ + write_register_bytes (REGISTER_BYTE (F0_REGNUM), _buf, MAX_REGISTER_RAW_SIZE); \ + } else \ + write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE)) + +/* Extract from an array REGBUF containing the (raw) register state + the address in which a function should return its structure value, + as a CORE_ADDR (or an expression that can be used as one). */ + +#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF)) + +/* Specify that for the native compiler variables for a particular + lexical context are listed after the beginning LBRAC instead of + before in the executables list of symbols. */ +#define VARIABLES_INSIDE_BLOCK(desc, gcc_p) (!(gcc_p)) + + /* Define other aspects of the stack frame. We keep the offsets of all saved registers, 'cause we need 'em a lot! - We also keep the current size of the stack frame, and whether - the frame pointer is valid (for frameless functions, and when we're - still in the prologue of a function with a frame) */ + We also keep the current size of the stack frame, and the offset of + the frame pointer from the stack pointer (for frameless functions, and + when we're still in the prologue of a function with a frame) */ -/* mvs_check EXTRA_FRAME_INFO */ #define EXTRA_FRAME_INFO \ struct frame_saved_regs fsr; \ int framesize; \ - int using_frame_pointer; + int frameoffset; \ + int framereg; +extern void arm_init_extra_frame_info PARAMS ((struct frame_info *fi)); +#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) arm_init_extra_frame_info (fi) -extern void fr30_init_extra_frame_info PARAMS ((struct frame_info *fi)); -/* mvs_check INIT_EXTRA_FRAME_INFO */ -#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) fr30_init_extra_frame_info (fi) -/* mvs_no_check INIT_FRAME_PC */ -#define INIT_FRAME_PC /* Not necessary */ +/* Return the frame address. On ARM, it is R11; on Thumb it is R7. */ +CORE_ADDR arm_target_read_fp PARAMS ((void)); +#define TARGET_READ_FP() arm_target_read_fp () + +/* Describe the pointer in each stack frame to the previous stack frame + (its caller). */ + +/* FRAME_CHAIN takes a frame's nominal address + and produces the frame's chain-pointer. + + However, if FRAME_CHAIN_VALID returns zero, + it means the given frame is the outermost one and has no caller. */ + +#define FRAME_CHAIN(thisframe) (CORE_ADDR) arm_frame_chain (thisframe) +extern CORE_ADDR arm_frame_chain PARAMS ((struct frame_info *)); + +#define LOWEST_PC 0x20 /* the first 0x20 bytes are the trap vectors. */ + +#define FRAME_CHAIN_VALID(chain, thisframe) \ + (chain != 0 && (FRAME_SAVED_PC (thisframe) >= LOWEST_PC)) + +/* Define other aspects of the stack frame. */ + +/* A macro that tells us whether the function invocation represented + by FI does not have a frame on the stack associated with it. If it + does not, FRAMELESS is set to 1, else 0. */ +#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \ +{ \ + CORE_ADDR func_start, after_prologue; \ + func_start = (get_pc_function_start ((FI)->pc) + \ + FUNCTION_START_OFFSET); \ + after_prologue = func_start; \ + SKIP_PROLOGUE (after_prologue); \ + (FRAMELESS) = (after_prologue == func_start); \ +} + +/* Saved Pc. */ + +#define FRAME_SAVED_PC(FRAME) arm_frame_saved_pc (FRAME) +extern CORE_ADDR arm_frame_saved_pc PARAMS ((struct frame_info *)); + +#define FRAME_ARGS_ADDRESS(fi) (fi->frame) + +#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) + +/* Return number of args passed to a frame. + Can return -1, meaning no way to tell. */ + +#define FRAME_NUM_ARGS(numargs, fi) (numargs = -1) -extern void -fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi, - struct frame_saved_regs *regaddr)); +/* Return number of bytes at start of arglist that are not really args. */ + +#define FRAME_ARGS_SKIP 0 /* Put here the code to store, into a struct frame_saved_regs, the addresses of the saved registers of frame described by FRAME_INFO. @@ -124,111 +538,254 @@ fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi, ways in the stack frame. sp is even more special: the address we return for it IS the sp for the next frame. */ -/* mvs_check FRAME_FIND_SAVED_REGS */ -#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ - fr30_frame_find_saved_regs(frame_info, &(frame_saved_regs)) +struct frame_saved_regs; +struct frame_info; +void frame_find_saved_regs PARAMS((struct frame_info *fi, + struct frame_saved_regs *fsr)); -extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi)); -/* mvs_check FRAME_CHAIN */ -#define FRAME_CHAIN(fi) fr30_frame_chain (fi) +#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ + arm_frame_find_saved_regs (frame_info, &(frame_saved_regs)); -#define FRAME_CHAIN_VALID(fp, frame) generic_frame_chain_valid (fp, frame) + +/* Things needed for making the inferior call functions. */ -extern CORE_ADDR fr30_find_callers_reg PARAMS ((struct frame_info *fi, - int regnum)); -extern CORE_ADDR fr30_frame_saved_pc PARAMS((struct frame_info *)); -/* mvs_check FRAME_SAVED_PC */ -#define FRAME_SAVED_PC(fi) fr30_frame_saved_pc (fi) +#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \ + sp = arm_push_arguments ((nargs), (args), (sp), (struct_return), (struct_addr)) +extern CORE_ADDR +arm_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR)); -/* mvs_check EXTRACT_RETURN_VALUE */ -#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \ - memcpy ((VALBUF), \ - (char *)(REGBUF) + REGISTER_BYTE (V0_REGNUM) + \ - ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \ - TYPE_LENGTH (TYPE)) +/* Push an empty stack frame, to record the current PC, etc. */ -/* mvs_check STORE_RETURN_VALUE */ -#define STORE_RETURN_VALUE(TYPE, VALBUF) \ - write_register_bytes(REGISTER_BYTE (V0_REGNUM) + \ - ((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\ - (VALBUF), TYPE_LENGTH (TYPE)); +void arm_push_dummy_frame PARAMS ((void)); -extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc)); -/* mvs_check SKIP_PROLOGUE */ -#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc) +#define PUSH_DUMMY_FRAME arm_push_dummy_frame () -/* mvs_no_check FRAME_ARGS_SKIP */ -#define FRAME_ARGS_SKIP 0 +/* Discard from the stack the innermost frame, restoring all registers. */ -/* mvs_no_check FRAME_ARGS_ADDRESS */ -#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) -/* mvs_no_check FRAME_LOCALS_ADDRESS */ -#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) -/* mvs_no_check FRAME_NUM_ARGS */ -#define FRAME_NUM_ARGS(val, fi) ((val) = -1) +void arm_pop_frame PARAMS ((void)); -#define COERCE_FLOAT_TO_DOUBLE 1 +#define POP_FRAME arm_pop_frame () -#define TARGET_WRITE_SP fr30_write_sp +/* This sequence of words is the instructions + mov lr,pc + mov pc,r4 + swi bkpt_swi + Note this is 12 bytes. */ +#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xef180000} +#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */ +#define CALL_DUMMY_BREAKPOINT_OFFSET arm_call_dummy_breakpoint_offset() +extern int arm_call_dummy_breakpoint_offset PARAMS ((void)); -/* struct passing and returning stuff */ -#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \ - write_register (0, STRUCT_ADDR) +/* Insert the specified number of args and function address + into a call sequence of the above form stored at DUMMYNAME. */ -#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \ - (TYPE_LENGTH (TYPE) > 8) +#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ + arm_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p) -#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ - extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \ - REGISTER_RAW_SIZE (V0_REGNUM)) +void arm_fix_call_dummy PARAMS ((char *dummy, CORE_ADDR pc, CORE_ADDR fun, + int nargs, struct value **args, + struct type *type, int gcc_p)); -#define REG_STRUCT_HAS_ADDR(gcc_p,type) (TYPE_LENGTH (type) > 8) +CORE_ADDR arm_get_next_pc PARAMS ((CORE_ADDR)); +/* Functions for dealing with Thumb call thunks. */ +#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) arm_in_call_stub (pc, name) +#define SKIP_TRAMPOLINE_CODE(pc) arm_skip_stub (pc) +extern int arm_in_call_stub PARAMS ((CORE_ADDR pc, char *name)); +extern CORE_ADDR arm_skip_stub PARAMS ((CORE_ADDR pc)); -/* generic dummy frame stuff */ +/* Function to determine whether MEMADDR is in a Thumb function. */ +extern int arm_pc_is_thumb PARAMS ((bfd_vma memaddr)); -#define PUSH_DUMMY_FRAME generic_push_dummy_frame () -#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP) +/* Function to determine whether MEMADDR is in a call dummy called from + a Thumb function. */ +extern int arm_pc_is_thumb_dummy PARAMS ((bfd_vma memaddr)); +/* Macros for setting and testing a bit in a minimal symbol that + marks it as Thumb function. The MSB of the minimal symbol's + "info" field is used for this purpose. This field is already + being used to store the symbol size, so the assumption is + that the symbol size cannot exceed 2^31. + + COFF_MAKE_MSYMBOL_SPECIAL + ELF_MAKE_MSYMBOL_SPECIAL tests whether the COFF or ELF symbol corresponds + to a thumb function, and sets a "special" bit in a + minimal symbol to indicate that it does + MSYMBOL_SET_SPECIAL actually sets the "special" bit + MSYMBOL_IS_SPECIAL tests the "special" bit in a minimal symbol + MSYMBOL_SIZE returns the size of the minimal symbol, i.e. + the "info" field with the "special" bit masked out +*/ + +extern int coff_sym_is_thumb(int val); +#define MSYMBOL_SET_SPECIAL(msym) \ + MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) | 0x80000000) +#define MSYMBOL_IS_SPECIAL(msym) \ + (((long) MSYMBOL_INFO (msym) & 0x80000000) != 0) +#define MSYMBOL_SIZE(msym) \ + ((long) MSYMBOL_INFO (msym) & 0x7fffffff) -/* target-specific dummy_frame stuff */ +/* Thumb symbol are of type STT_LOPROC, (synonymous with STT_ARM_TFUNC) */ +#define ELF_MAKE_MSYMBOL_SPECIAL(sym,msym) \ + { if(ELF_ST_TYPE(((elf_symbol_type *)(sym))->internal_elf_sym.st_info) == STT_LOPROC) \ + MSYMBOL_SET_SPECIAL(msym); } + +#define COFF_MAKE_MSYMBOL_SPECIAL(val,msym) \ + { if(coff_sym_is_thumb(val)) MSYMBOL_SET_SPECIAL(msym); } -extern struct frame_info *fr30_pop_frame PARAMS ((struct frame_info *frame)); -/* mvs_check POP_FRAME */ -#define POP_FRAME fr30_pop_frame (get_current_frame ()) -/* mvs_no_check STACK_ALIGN */ -/* #define STACK_ALIGN(x) ((x + 3) & ~3) */ +V850 example -extern CORE_ADDR fr30_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR)); -extern CORE_ADDR fr30_push_arguments PARAMS ((int nargs, - struct value **args, - CORE_ADDR sp, - unsigned char struct_return, - CORE_ADDR struct_addr)); +#define TARGET_BYTE_ORDER BIG_ENDIAN +#define NUM_REGS 66 -/* mvs_no_check PUSH_ARGUMENTS */ -#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ - (SP) = fr30_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) +#define REGISTER_NAMES \ +{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \ + \ + "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", \ + "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", \ + "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", \ + "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", \ + \ + "pc", "fp" } + +#define REGISTER_BYTES (NUM_REGS * 4) + +#define REGISTER_SIZE 4 +#define MAX_REGISTER_RAW_SIZE 4 + +#define R0_REGNUM 0 +#define R1_REGNUM 1 +#define SAVE1_START_REGNUM 2 +#define SAVE1_END_REGNUM 2 +#define SP_REGNUM 3 +#define ARG0_REGNUM 6 +#define ARGLAST_REGNUM 9 +#define V0_REGNUM 10 +#define V1_REGNUM 11 +#define R12_REGNUM 12 +#define SAVE2_START_REGNUM 20 +#define SAVE2_END_REGNUM 29 +#define EP_REGNUM 30 +#define SAVE3_START_REGNUM 31 +#define SAVE3_END_REGNUM 31 +#define RP_REGNUM 31 +#define PS_REGNUM 37 +#define PC_REGNUM 64 +#define FP_REGNUM 65 +#define FP_RAW_REGNUM 29 + +#define TARGET_READ_FP() read_register (FP_RAW_REGNUM) +#define TARGET_WRITE_FP(VAL) write_register (FP_REGNUM, (VAL)) + +#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int + +#define REGISTER_BYTE(REG) ((REG) * 4) +#define REGISTER_VIRTUAL_SIZE(REG) 4 +#define REGISTER_RAW_SIZE(REG) 4 + +#define MAX_REGISTER_VIRTUAL_SIZE 4 + +#define BREAKPOINT {0x40, 0xF8} /* little-ended */ -#define PUSH_RETURN_ADDRESS(PC, SP) fr30_push_return_address (PC, SP) +#define FUNCTION_START_OFFSET 0 -/* override the standard get_saved_register function with - one that takes account of generic CALL_DUMMY frames */ -#define GET_SAVED_REGISTER +#define DECR_PC_AFTER_BREAK 0 + +#define INNER_THAN < + +#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM) + +#ifdef __STDC__ +struct frame_info; +struct frame_saved_regs; +struct type; +struct value; +#endif + +#define EXTRA_FRAME_INFO struct frame_saved_regs fsr; + +extern void fr30_init_extra_frame_info PARAMS ((struct frame_info *fi)); +#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) fr30_init_extra_frame_info (fi) +#define INIT_FRAME_PC /* Not necessary */ + +extern void fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr)); +#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr + +extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi)); +#define FRAME_CHAIN(fi) fr30_frame_chain (fi) +#define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI) + +extern CORE_ADDR fr30_find_callers_reg PARAMS ((struct frame_info *fi, int regnum)); +extern CORE_ADDR fr30_frame_saved_pc PARAMS ((struct frame_info *)); +#define FRAME_SAVED_PC(FI) (fr30_frame_saved_pc (FI)) + +#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \ + memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE)) + +#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ + extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \ + REGISTER_RAW_SIZE (V0_REGNUM)) + +#define STORE_RETURN_VALUE(TYPE, VALBUF) \ + write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE)); + +extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc)); +#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc) + +#define FRAME_ARGS_SKIP 0 + +#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) +#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) +#define FRAME_NUM_ARGS(val, fi) ((val) = -1) + +extern void fr30_pop_frame PARAMS ((void)); +#define POP_FRAME fr30_pop_frame() #define USE_GENERIC_DUMMY_FRAMES #define CALL_DUMMY {0} -#define CALL_DUMMY_LENGTH (0) #define CALL_DUMMY_START_OFFSET (0) #define CALL_DUMMY_BREAKPOINT_OFFSET (0) -#define FIX_CALL_DUMMY(DUMMY1, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP) #define CALL_DUMMY_LOCATION AT_ENTRY_POINT +#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP) #define CALL_DUMMY_ADDRESS() entry_point_address () +extern CORE_ADDR fr30_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR)); +#define PUSH_RETURN_ADDRESS(PC, SP) fr30_push_return_address (PC, SP) + + +#define PUSH_DUMMY_FRAME generic_push_dummy_frame () + +extern CORE_ADDR +fr30_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp, + unsigned char struct_return, + CORE_ADDR struct_addr)); +#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ + (SP) = fr30_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) + +#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) + + +#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP) + +#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \ + (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4) + +/* override the default get_saved_register function with + one that takes account of generic CALL_DUMMY frames */ +#define GET_SAVED_REGISTER + +/* Define this for Wingdb */ + +#define TARGET_FR30 + +#endif /* Z.R. */ -- 2.7.4