X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fconfig%2Fmips%2Ftm-mips.h;h=be0d6b75eb1cc829870ace312490028b67c357d8;hb=7b7adad08dcd80b101a1a68a9fc59fb287db49b9;hp=8403ef87153e07fa418884a1bb44056905f8e00c;hpb=9b56c5f366e5caee0092c69bccc7ee098dc5d9cd;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/config/mips/tm-mips.h b/gdb/config/mips/tm-mips.h index 8403ef8715..be0d6b75eb 100644 --- a/gdb/config/mips/tm-mips.h +++ b/gdb/config/mips/tm-mips.h @@ -1,7 +1,8 @@ /* Definitions to make GDB run on a mips box under 4.3bsd. - Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, - 1998, 1999, 2000 - Free Software Foundation, Inc. + + Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, + 1997, 1998, 1999, 2000, 2002, 2003 Free Software Foundation, Inc. + Contributed by Per Bothner (bothner@cs.wisc.edu) at U.Wisconsin and by Alessandro Forin (af@cs.cmu.edu) at CMU.. @@ -38,88 +39,12 @@ struct value; #include "coff/sym.h" /* Needed for PDR below. */ #include "coff/symconst.h" -#if !defined (MIPS_EABI) -#define MIPS_EABI 0 -#endif - -/* PC should be masked to remove possible MIPS16 flag */ -#if !defined (GDB_TARGET_MASK_DISAS_PC) -#define GDB_TARGET_MASK_DISAS_PC(addr) UNMAKE_MIPS16_ADDR(addr) -#endif -#if !defined (GDB_TARGET_UNMASK_DISAS_PC) -#define GDB_TARGET_UNMASK_DISAS_PC(addr) MAKE_MIPS16_ADDR(addr) -#endif - -/* The name of the usual type of MIPS processor that is in the target - system. */ - -#define DEFAULT_MIPS_TYPE "generic" - -/* Remove useless bits from the stack pointer. */ - -#define TARGET_READ_SP() ADDR_BITS_REMOVE (read_register (SP_REGNUM)) - -/* Offset from address of function to start of its code. - Zero on most machines. */ - -#define FUNCTION_START_OFFSET 0 - /* Return non-zero if PC points to an instruction which will cause a step to execute both the instruction at PC and an instruction at PC+4. */ extern int mips_step_skips_delay (CORE_ADDR); #define STEP_SKIPS_DELAY_P (1) #define STEP_SKIPS_DELAY(pc) (mips_step_skips_delay (pc)) -/* Are we currently handling a signal */ - -extern int in_sigtramp (CORE_ADDR, char *); -#define IN_SIGTRAMP(pc, name) in_sigtramp(pc, name) - -/* 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 - -/* The size of a register. This is predefined in tm-mips64.h. We - can't use REGISTER_SIZE because that is used for various other - things. */ - -#ifndef MIPS_REGSIZE -#define MIPS_REGSIZE 4 -#endif - -/* Number of machine registers */ - -#ifndef NUM_REGS -#define NUM_REGS 90 -#endif - -/* Given the register index, return the name of the corresponding - register. */ -extern char *mips_register_name (int regnr); -#define REGISTER_NAME(i) mips_register_name (i) - -/* Initializer for an array of names of registers. - There should be NUM_REGS strings in this initializer. */ - -#ifndef MIPS_REGISTER_NAMES -#define MIPS_REGISTER_NAMES \ - { "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3", \ - "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", \ - "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", \ - "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", \ - "sr", "lo", "hi", "bad", "cause","pc", \ - "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ - "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ - "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",\ - "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",\ - "fsr", "fir", "fp", "", \ - "", "", "", "", "", "", "", "", \ - "", "", "", "", "", "", "", "", \ - } -#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, @@ -130,249 +55,15 @@ extern char *mips_register_name (int regnr); #define ZERO_REGNUM 0 /* read-only register, always 0 */ #define V0_REGNUM 2 /* Function integer return value */ #define A0_REGNUM 4 /* Loc of first arg during a subr call */ -#if MIPS_EABI -#define MIPS_LAST_ARG_REGNUM 11 /* EABI uses R4 through R11 for args */ -#else -#define MIPS_LAST_ARG_REGNUM 7 /* old ABI uses R4 through R7 for args */ -#endif #define T9_REGNUM 25 /* Contains address of callee in PIC */ #define SP_REGNUM 29 /* Contains address of top of stack */ #define RA_REGNUM 31 /* Contains return address value */ #define PS_REGNUM 32 /* Contains processor status */ -#define HI_REGNUM 34 /* Multiple/divide temp */ -#define LO_REGNUM 33 /* ... */ -#define BADVADDR_REGNUM 35 /* bad vaddr for addressing exception */ -#define CAUSE_REGNUM 36 /* describes last exception */ -#define PC_REGNUM 37 /* Contains program counter */ -#define FP0_REGNUM 38 /* Floating point register 0 (single float) */ -#define FPA0_REGNUM (FP0_REGNUM+12) /* First float argument register */ -#if MIPS_EABI /* EABI uses F12 through F19 for args */ -#define MIPS_LAST_FP_ARG_REGNUM (FP0_REGNUM+19) -#else /* old ABI uses F12 through F15 for args */ -#define MIPS_LAST_FP_ARG_REGNUM (FP0_REGNUM+15) -#endif -#define FCRCS_REGNUM 70 /* FP control/status */ -#define FCRIR_REGNUM 71 /* FP implementation/revision */ -#define FP_REGNUM 72 /* Pseudo register that contains true address of executing stack frame */ #define UNUSED_REGNUM 73 /* Never used, FIXME */ #define FIRST_EMBED_REGNUM 74 /* First CP0 register for embedded use */ #define PRID_REGNUM 89 /* Processor ID */ #define LAST_EMBED_REGNUM 89 /* Last one */ -/* Define DO_REGISTERS_INFO() to do machine-specific formatting - of register dumps. */ - -#define DO_REGISTERS_INFO(_regnum, fp) mips_do_registers_info(_regnum, fp) -extern void mips_do_registers_info (int, int); - -/* Total amount of space needed to store our copies of the machine's - register state, the array `registers'. */ - -#define REGISTER_BYTES (NUM_REGS*MIPS_REGSIZE) - -/* Index within `registers' of the first byte of the space for - register N. */ - -#define REGISTER_BYTE(N) ((N) * MIPS_REGSIZE) - -/* Covert between the RAW and VIRTUAL registers. - - Some MIPS (SR, FSR, FIR) have a `raw' size of MIPS_REGSIZE but are - really 32 bit registers. This is a legacy of the 64 bit MIPS GDB - protocol which transfers 64 bits for 32 bit registers. */ - -extern int mips_register_convertible (int reg_nr); -#define REGISTER_CONVERTIBLE(N) (mips_register_convertible ((N))) - - -void mips_register_convert_to_virtual (int reg_nr, struct type *virtual_type, - char *raw_buf, char *virt_buf); -#define REGISTER_CONVERT_TO_VIRTUAL(N,VIRTUAL_TYPE,RAW_BUF,VIRT_BUF) \ - mips_register_convert_to_virtual (N,VIRTUAL_TYPE,RAW_BUF,VIRT_BUF) - -void mips_register_convert_to_raw (struct type *virtual_type, int reg_nr, - char *virt_buf, char *raw_buf); -#define REGISTER_CONVERT_TO_RAW(VIRTUAL_TYPE,N,VIRT_BUF,RAW_BUF) \ - mips_register_convert_to_raw (VIRTUAL_TYPE,N,VIRT_BUF,RAW_BUF) - -/* Number of bytes of storage in the program's representation - for register N. */ - -#define REGISTER_VIRTUAL_SIZE(N) TYPE_LENGTH (REGISTER_VIRTUAL_TYPE (N)) - -/* Largest value REGISTER_RAW_SIZE can have. */ - -#define MAX_REGISTER_RAW_SIZE 8 - -/* Largest value REGISTER_VIRTUAL_SIZE can have. */ - -#define MAX_REGISTER_VIRTUAL_SIZE 8 - -/* Return the GDB type object for the "standard" data type of data in - register N. */ - -#ifndef REGISTER_VIRTUAL_TYPE -#define REGISTER_VIRTUAL_TYPE(N) \ - (((N) >= FP0_REGNUM && (N) < FP0_REGNUM+32) ? builtin_type_float \ - : ((N) == 32 /*SR*/) ? builtin_type_uint32 \ - : ((N) >= 70 && (N) <= 89) ? builtin_type_uint32 \ - : builtin_type_int) -#endif - -/* All mips targets store doubles in a register pair with the least - significant register in the lower numbered register. - If the target is big endian, double register values need conversion - between memory and register formats. */ - -#define REGISTER_CONVERT_TO_TYPE(n, type, buffer) \ - do {if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG \ - && REGISTER_RAW_SIZE (n) == 4 \ - && (n) >= FP0_REGNUM && (n) < FP0_REGNUM + 32 \ - && TYPE_CODE(type) == TYPE_CODE_FLT \ - && TYPE_LENGTH(type) == 8) { \ - char __temp[4]; \ - memcpy (__temp, ((char *)(buffer))+4, 4); \ - memcpy (((char *)(buffer))+4, (buffer), 4); \ - memcpy (((char *)(buffer)), __temp, 4); }} while (0) - -#define REGISTER_CONVERT_FROM_TYPE(n, type, buffer) \ - do {if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG \ - && REGISTER_RAW_SIZE (n) == 4 \ - && (n) >= FP0_REGNUM && (n) < FP0_REGNUM + 32 \ - && TYPE_CODE(type) == TYPE_CODE_FLT \ - && TYPE_LENGTH(type) == 8) { \ - char __temp[4]; \ - memcpy (__temp, ((char *)(buffer))+4, 4); \ - memcpy (((char *)(buffer))+4, (buffer), 4); \ - memcpy (((char *)(buffer)), __temp, 4); }} while (0) - -/* Store the address of the place in which to copy the structure the - subroutine will return. Handled by mips_push_arguments. */ - -#define STORE_STRUCT_RETURN(addr, sp) -/**/ - -/* 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. XXX floats */ - -#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - mips_extract_return_value(TYPE, REGBUF, VALBUF) -extern void mips_extract_return_value (struct type *, char[], char *); - -/* Write into appropriate registers a function return value - of type TYPE, given in virtual format. */ - -#define STORE_RETURN_VALUE(TYPE,VALBUF) \ - mips_store_return_value(TYPE, VALBUF) -extern void mips_store_return_value (struct type *, char *); - -/* 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). */ -/* The address is passed in a0 upon entry to the function, but when - the function exits, the compiler has copied the value to v0. This - convention is specified by the System V ABI, so I think we can rely - on it. */ - -#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ - (extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \ - REGISTER_RAW_SIZE (V0_REGNUM))) - -extern use_struct_convention_fn mips_use_struct_convention; -#define USE_STRUCT_CONVENTION(gcc_p, type) mips_use_struct_convention (gcc_p, type) - -/* 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. */ - -#define FRAME_CHAIN(thisframe) (CORE_ADDR) mips_frame_chain (thisframe) -extern CORE_ADDR mips_frame_chain (struct frame_info *); - -/* 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. */ -/* We handle this differently for mips, and maybe we should not */ - -#define FRAMELESS_FUNCTION_INVOCATION(FI) (0) - -/* Saved Pc. */ - -#define FRAME_SAVED_PC(FRAME) (mips_frame_saved_pc(FRAME)) -extern CORE_ADDR mips_frame_saved_pc (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(fi) (mips_frame_num_args(fi)) -extern int mips_frame_num_args (struct frame_info *); - -/* 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. - 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_INIT_SAVED_REGS(frame_info) \ - do { \ - if ((frame_info)->saved_regs == NULL) \ - mips_find_saved_regs (frame_info); \ - (frame_info)->saved_regs[SP_REGNUM] = (frame_info)->frame; \ - } while (0) -extern void mips_find_saved_regs (struct frame_info *); - - -/* Things needed for making the inferior call functions. */ - -/* Stack must be aligned on 32-bit boundaries when synthesizing - function calls. We don't need STACK_ALIGN, PUSH_ARGUMENTS will - handle it. */ - -extern CORE_ADDR mips_push_arguments (int, struct value **, CORE_ADDR, int, - CORE_ADDR); -#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \ - (mips_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))) - -extern CORE_ADDR mips_push_return_address (CORE_ADDR pc, CORE_ADDR sp); -#define PUSH_RETURN_ADDRESS(PC, SP) (mips_push_return_address ((PC), (SP))) - -/* Push an empty stack frame, to record the current PC, etc. */ - -#define PUSH_DUMMY_FRAME mips_push_dummy_frame() -extern void mips_push_dummy_frame (void); - -/* Discard from the stack the innermost frame, restoring all registers. */ - -#define POP_FRAME mips_pop_frame() -extern void mips_pop_frame (void); - -#define CALL_DUMMY_START_OFFSET (0) - -#define CALL_DUMMY_BREAKPOINT_OFFSET (0) - -/* When calling functions on Irix 5 (or any MIPS SVR4 ABI compliant - platform), $t9 ($25) (Dest_Reg) contains the address of the callee - (used for PIC). It doesn't hurt to do this on other systems; $t9 - will be ignored. */ -#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p) \ - write_register(T9_REGNUM, fun) - -#define CALL_DUMMY_ADDRESS() (mips_call_dummy_address ()) -extern CORE_ADDR mips_call_dummy_address (void); - /* Special symbol found in blocks associated with routines. We can hang mips_extra_func_info_t's off of this. */ @@ -392,14 +83,6 @@ typedef struct mips_extra_func_info } *mips_extra_func_info_t; -extern void mips_init_extra_frame_info (int fromleaf, struct frame_info *); -#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \ - mips_init_extra_frame_info(fromleaf, fci) - -extern void mips_print_extra_frame_info (struct frame_info *frame); -#define PRINT_EXTRA_FRAME_INFO(fi) \ - mips_print_extra_frame_info (fi) - /* It takes two values to specify a frame on the MIPS. In fact, the *PC* is the primary value that sets up a frame. The @@ -416,78 +99,21 @@ extern void mips_print_extra_frame_info (struct frame_info *frame); #define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv) extern struct frame_info *setup_arbitrary_frame (int, CORE_ADDR *); -/* Select the default mips disassembler */ - -#define TM_PRINT_INSN_MACH 0 - - /* These are defined in mdebugread.c and are used in mips-tdep.c */ extern CORE_ADDR sigtramp_address, sigtramp_end; extern void fixup_sigtramp (void); -/* Defined in mips-tdep.c and used in remote-mips.c */ -extern char *mips_read_processor_type (void); - /* Functions for dealing with MIPS16 call and return stubs. */ -#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) mips_in_call_stub (pc, name) -#define IN_SOLIB_RETURN_TRAMPOLINE(pc, name) mips_in_return_stub (pc, name) -#define SKIP_TRAMPOLINE_CODE(pc) mips_skip_stub (pc) #define IGNORE_HELPER_CALL(pc) mips_ignore_helper (pc) -extern int mips_in_call_stub (CORE_ADDR pc, char *name); -extern int mips_in_return_stub (CORE_ADDR pc, char *name); -extern CORE_ADDR mips_skip_stub (CORE_ADDR pc); extern int mips_ignore_helper (CORE_ADDR pc); -#ifndef TARGET_MIPS -#define TARGET_MIPS -#endif - /* Definitions and declarations used by mips-tdep.c and remote-mips.c */ #define MIPS_INSTLEN 4 /* Length of an instruction */ #define MIPS16_INSTLEN 2 /* Length of an instruction on MIPS16 */ #define MIPS_NUMREGS 32 /* Number of integer or float registers */ typedef unsigned long t_inst; /* Integer big enough to hold an instruction */ -/* MIPS16 function addresses are odd (bit 0 is set). Here are some - macros to test, set, or clear bit 0 of addresses. */ -#define IS_MIPS16_ADDR(addr) ((addr) & 1) -#define MAKE_MIPS16_ADDR(addr) ((addr) | 1) -#define UNMAKE_MIPS16_ADDR(addr) ((addr) & ~1) - #endif /* TM_MIPS_H */ -/* Macros for setting and testing a bit in a minimal symbol that - marks it as 16-bit 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. - - ELF_MAKE_MSYMBOL_SPECIAL - tests whether an ELF symbol is "special", i.e. refers - to a 16-bit function, and sets a "special" bit in a - minimal symbol to mark it as a 16-bit function - 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 - */ - -#define ELF_MAKE_MSYMBOL_SPECIAL(sym,msym) \ - { \ - if (((elf_symbol_type *)(sym))->internal_elf_sym.st_other == STO_MIPS16) { \ - MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) | 0x80000000); \ - SYMBOL_VALUE_ADDRESS (msym) |= 1; \ - } \ - } - -#define MSYMBOL_IS_SPECIAL(msym) \ - (((long) MSYMBOL_INFO (msym) & 0x80000000) != 0) -#define MSYMBOL_SIZE(msym) \ - ((long) MSYMBOL_INFO (msym) & 0x7fffffff) - - -/* Command to set the processor type. */ -extern void mips_set_processor_type_command (char *, int); - - /* Single step based on where the current instruction will take us. */ extern void mips_software_single_step (enum target_signal, int);