/* 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 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..
#define GDB_MULTI_ARCH 1
+#include "regcache.h"
+
struct frame_info;
struct symbol;
struct type;
#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)
#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 an instruction address. */
-
-#define ADDR_BITS_REMOVE(addr) mips_addr_bits_remove(addr)
-CORE_ADDR mips_addr_bits_remove (CORE_ADDR addr);
-
-/* 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 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. */
"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", "", \
+ "fsr", "fir", ""/*"fp"*/, "", \
"", "", "", "", "", "", "", "", \
"", "", "", "", "", "", "", "", \
}
#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 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_BYTE(N) ((N) * MIPS_REGSIZE)
-/* Number of bytes of storage in the actual machine representation for
- register N. NOTE: This indirectly defines the register size
- transfered by the GDB protocol. */
-
-extern int mips_register_raw_size (int reg_nr);
-#define REGISTER_RAW_SIZE(N) (mips_register_raw_size ((N)))
-
-
-/* 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. */
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 == BIG_ENDIAN \
- && 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 == BIG_ENDIAN \
- && 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)
-\f
-/* 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
+extern void mips_register_convert_to_type (int regnum,
+ struct type *type,
+ char *buffer);
+extern void mips_register_convert_from_type (int regnum,
+ struct type *type,
+ char *buffer);
-#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame
+#define REGISTER_CONVERT_TO_TYPE(n, type, buffer) \
+ mips_register_convert_to_type ((n), (type), (buffer))
-/* Return number of args passed to a frame.
- Can return -1, meaning no way to tell. */
+#define REGISTER_CONVERT_FROM_TYPE(n, type, buffer) \
+ mips_register_convert_from_type ((n), (type), (buffer))
-#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 *);
\f
-
-/* 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_LOCATION AT_ENTRY_POINT
-
-#define CALL_DUMMY_ADDRESS() (mips_call_dummy_address ())
-extern CORE_ADDR mips_call_dummy_address (void);
-
-/* There's a mess in stack frame creation. See comments in blockframe.c
- near reference to INIT_FRAME_PC_FIRST. */
-
-#define INIT_FRAME_PC(fromleaf, prev) /* nada */
-
-#define INIT_FRAME_PC_FIRST(fromleaf, prev) \
- mips_init_frame_pc_first(fromleaf, prev)
-extern void mips_init_frame_pc_first (int, struct frame_info *);
-
/* Special symbol found in blocks associated with routines. We can hang
mips_extra_func_info_t's off of this. */
}
*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)
#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);
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
#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);
-
-/* MIPS sign extends addresses */
-#define POINTER_TO_ADDRESS(TYPE,BUF) (signed_pointer_to_address (TYPE, BUF))
-#define ADDRESS_TO_POINTER(TYPE,BUF,ADDR) (address_to_signed_pointer (TYPE, BUF, ADDR))
+/* Single step based on where the current instruction will take us. */
+extern void mips_software_single_step (enum target_signal, int);
projects / deliverable / binutils-gdb.git / blobdiff