Replacing a bogus file with a semi-bogus one (sharing through devo).
This commit is contained in:
Zdenek Radouch
parent
82a1b47808
commit
f51dbfbd4e
1 changed files with 729 additions and 172 deletions
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@ -1,5 +1,4 @@
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/* Parameters for execution on a Mitsubishi fr30 processor.
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Copyright 1996, 1997 Free Software Foundation, Inc.
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/* Parameters for execution on a Fujitsu FR30 processor.
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This file is part of GDB.
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@ -17,75 +16,694 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Used by mswin. */
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#define TARGET_FR30 1
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#define FR30_GENREGS 16
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#define FR30_DEDICATEDREGS 8
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#define FR30_REGSIZE 4 /* bytes */
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/* mvs_check TARGET_BYTE_ORDER BIG_ENDIAN */
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#define TARGET_BYTE_ORDER BIG_ENDIAN
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#define NUM_REGS (FR30_GENREGS + FR30_DEDICATEDREGS)
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#define REGISTER_BYTES ((FR30_GENREGS + FR30_DEDICATEDREGS)*FR30_REGSIZE)
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/* mvs_check REGISTER_NAMES */
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/* Index within `registers' of the first byte of the space for
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register N. */
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#define REGISTER_BYTE(N) ((N) * FR30_REGSIZE)
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/* Initializer for an array of names of registers.
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There should be NUM_REGS strings in this initializer. */
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#define REGISTER_NAMES \
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{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
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"r8", "r9", "r10", "r11", "r12", "fp", "lr", "sp", \
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"psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch", \
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/* "cond", "sm", "bsm", "ie", "bie", "bcarry", */ \
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}
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/* mvs_check NUM_REGS */
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#define NUM_REGS 24
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{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", \
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"r9", "r10", "r11", "r12", "r13", "r14", "r15", \
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"pc", "ps", "tbr", "rp", "ssp", "usp", "mdh", "mdl" }
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/* Offset from address of function to start of its code.
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Zero on most machines. */
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#define FUNCTION_START_OFFSET 0
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/* Amount PC must be decremented by after a breakpoint.
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This is often the number of bytes in BREAKPOINT
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but not always. */
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#define DECR_PC_AFTER_BREAK 0
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/* Stack grows downward. */
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#define INNER_THAN <
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#define TARGET_BYTE_ORDER BIG_ENDIAN
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#define R4_REGNUM 4
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#define R7_REGNUM 7
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#define FP_REGNUM 14 /* Frame pointer */
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#define SP_REGNUM 15 /* Stack pointer */
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#define PC_REGNUM 16 /* Program counter */
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#define RP_REGNUM 19 /* Return pointer */
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#define FIRST_ARGREG R4_REGNUM /* first arg (or struct ret val addr) */
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#define LAST_ARGREG R7_REGNUM /* fourth (or third arg) */
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#define RETVAL_REG R4_REGNUM /* return vaue */
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/* Say how long (ordinary) registers are. This is a piece of bogosity
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used in push_word and a few other places; REGISTER_RAW_SIZE is the
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real way to know how big a register is. */
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#define REGISTER_SIZE FR30_REGSIZE
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/* Number of bytes of storage in the actual machine representation
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for register N. */
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#define REGISTER_RAW_SIZE(N) FR30_REGSIZE
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/* Largest value REGISTER_RAW_SIZE can have. */
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#define MAX_REGISTER_RAW_SIZE FR30_REGSIZE
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/* Number of bytes of storage in the program's representation
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for register N. */
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#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N)
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/* Largest value REGISTER_VIRTUAL_SIZE can have. */
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#define MAX_REGISTER_VIRTUAL_SIZE FR30_REGSIZE
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extern void fr30_pop_frame PARAMS ((void));
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/* XXX do we need the parameter ? */
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#define POP_FRAME fr30_pop_frame()
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/* Number of bytes at start of arglist that are not really args. */
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#define FRAME_ARGS_SKIP 0
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/* Return the GDB type object for the "standard" data type
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of data in register N. */
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#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
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/* Extract from an array REGBUF containing the (raw) register state
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a function return value of type TYPE, and copy that, in virtual format,
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into VALBUF. */
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#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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memcpy (VALBUF, REGBUF + REGISTER_BYTE(RETVAL_REG), TYPE_LENGTH (TYPE))
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/* Extract from an array REGBUF containing the (raw) register state
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the address in which a function should return its structure value,
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as a CORE_ADDR (or an expression that can be used as one). */
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#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
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extract_address (REGBUF + REGISTER_BYTE (RETVAL_REG), \
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REGISTER_RAW_SIZE (RETVAL_REG))
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#define FRAME_ARGS_ADDRESS(fi) (fi->frame)
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#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
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/* Return number of args passed to a frame.
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Can return -1, meaning no way to tell. */
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#define FRAME_NUM_ARGS(numargs, fi) (numargs = -1)
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#ifdef __STDC__ /* Forward decls for prototypes */
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struct frame_info;
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struct frame_saved_regs;
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struct type;
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struct value;
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#endif
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#define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
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extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi));
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#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
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extern CORE_ADDR fr30_frame_saved_pc PARAMS ((struct frame_info *));
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#define FRAME_SAVED_PC(fi) (fr30_frame_saved_pc (fi))
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#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
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extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
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#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
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/* Write into appropriate registers a function return value
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of type TYPE, given in virtual format. */
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#define STORE_RETURN_VALUE(TYPE,VALBUF) \
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write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
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/* Put here the code to store, into a struct frame_saved_regs,
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the addresses of the saved registers of frame described by FRAME_INFO.
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This includes special registers such as pc and fp saved in special
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ways in the stack frame. sp is even more special:
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the address we return for it IS the sp for the next frame. */
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#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
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/* Use INT #BREAKPOINT_INTNUM instruction for breakpoint */
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#define FR30_BREAKOP 0x1f /* opcode, type D instruction */
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#define BREAKPOINT_INTNUM 9 /* one of the reserved traps */
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#define BREAKPOINT {FR30_BREAKOP, BREAKPOINT_INTNUM}
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#if(0) /* Z.R. */
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ARM example
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#ifdef __STDC__ /* Forward decls for prototypes */
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struct type;
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struct value;
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#endif
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#define TARGET_BYTE_ORDER_SELECTABLE
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/* IEEE format floating point */
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#define IEEE_FLOAT
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/* FIXME: may need a floatformat_ieee_double_bigbyte_littleword format for
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BIG_ENDIAN use. -fnf */
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#define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
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? &floatformat_ieee_double_big \
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: &floatformat_ieee_double_littlebyte_bigword)
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/* When reading symbols, we need to zap the low bit of the address, which
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may be set to 1 for Thumb functions. */
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#define SMASH_TEXT_ADDRESS(addr) ((addr) &= ~0x1)
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/* Remove useless bits from addresses in a running program. */
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CORE_ADDR arm_addr_bits_remove PARAMS ((CORE_ADDR));
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#define ADDR_BITS_REMOVE(val) (arm_addr_bits_remove (val))
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/* Offset from address of function to start of its code.
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Zero on most machines. */
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#define FUNCTION_START_OFFSET 0
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/* Advance PC across any function entry prologue instructions
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to reach some "real" code. */
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extern CORE_ADDR arm_skip_prologue PARAMS ((CORE_ADDR pc));
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#define SKIP_PROLOGUE(pc) { pc = arm_skip_prologue (pc); }
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/* Immediately after a function call, return the saved pc.
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Can't always go through the frames for this because on some machines
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the new frame is not set up until the new function executes
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some instructions. */
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#define SAVED_PC_AFTER_CALL(frame) arm_saved_pc_after_call (frame)
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struct frame_info;
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extern CORE_ADDR arm_saved_pc_after_call PARAMS ((struct frame_info *));
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/* I don't know the real values for these. */
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#define TARGET_UPAGES UPAGES
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#define TARGET_NBPG NBPG
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/* Address of end of stack space. */
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#define STACK_END_ADDR (0x01000000 - (TARGET_UPAGES * TARGET_NBPG))
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/* Stack grows downward. */
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#define INNER_THAN <
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/* Sequence of bytes for breakpoint instruction. */
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/* !!!! if we're using RDP, then we're inserting breakpoints and storing
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their handles instread of what was in memory. It is nice that
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this is the same size as a handle - otherwise remote-rdp will
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have to change. */
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#define ARM_LE_BREAKPOINT {0x00,0x00,0x18,0xef} /* BKPT_SWI from <sys/ptrace.h> */
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#define ARM_BE_BREAKPOINT {0xef,0x18,0x00,0x00} /* BKPT_SWI from <sys/ptrace.h> */
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#define THUMB_LE_BREAKPOINT {0x18,0xdf} /* swi 24 */
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#define THUMB_BE_BREAKPOINT {0xdf,0x18} /* swi 24 */
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/* The following has been superseded by BREAKPOINT_FOR_PC, but
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is defined merely to keep mem-break.c happy. */
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#define LITTLE_BREAKPOINT ARM_LE_BREAKPOINT
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#define BIG_BREAKPOINT ARM_BE_BREAKPOINT
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/* BREAKPOINT_FROM_PC uses the program counter value to determine whether a
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16- or 32-bit breakpoint should be used. It returns a pointer
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to a string of bytes that encode a breakpoint instruction, stores
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the length of the string to *lenptr, and adjusts the pc (if necessary) to
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point to the actual memory location where the breakpoint should be
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inserted. */
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unsigned char * arm_breakpoint_from_pc PARAMS ((CORE_ADDR * pcptr, int * lenptr));
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#define BREAKPOINT_FROM_PC(pcptr, lenptr) arm_breakpoint_from_pc (pcptr, lenptr)
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/* Amount PC must be decremented by after a breakpoint.
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This is often the number of bytes in BREAKPOINT
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but not always. */
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#define DECR_PC_AFTER_BREAK 0
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/* Nonzero if instruction at PC is a return instruction. */
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#define ABOUT_TO_RETURN(pc) \
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((read_memory_integer(pc, 4) & 0x0fffffff == 0x01b0f00e) || \
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(read_memory_integer(pc, 4) & 0x0ffff800 == 0x09eba800))
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/* code to execute to print interesting information about the
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* floating point processor (if any)
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* No need to define if there is nothing to do.
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*/
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#define FLOAT_INFO { arm_float_info (); }
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/* Say how long (ordinary) registers are. This is a piece of bogosity
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used in push_word and a few other places; REGISTER_RAW_SIZE is the
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real way to know how big a register is. */
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#define REGISTER_SIZE 4
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/* Number of machine registers */
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/* Note: I make a fake copy of the pc in register 25 (calling it ps) so
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that I can clear the status bits from pc (register 15) */
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#define NUM_REGS 26
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/* Initializer for an array of names of registers.
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There should be NUM_REGS strings in this initializer. */
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#define ORIGINAL_REGISTER_NAMES \
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{ "a1", "a2", "a3", "a4", /* 0 1 2 3 */ \
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"v1", "v2", "v3", "v4", /* 4 5 6 7 */ \
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"v5", "v6", "sl", "fp", /* 8 9 10 11 */ \
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"ip", "sp", "lr", "pc", /* 12 13 14 15 */ \
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"f0", "f1", "f2", "f3", /* 16 17 18 19 */ \
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"f4", "f5", "f6", "f7", /* 20 21 22 23 */ \
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"fps","ps" } /* 24 25 */
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/* These names are the ones which gcc emits, and
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I find them less confusing. Toggle between them
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using the `othernames' command. */
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#define ADDITIONAL_REGISTER_NAMES \
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{ "r0", "r1", "r2", "r3", /* 0 1 2 3 */ \
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"r4", "r5", "r6", "r7", /* 4 5 6 7 */ \
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"r8", "r9", "sl", "fp", /* 8 9 10 11 */ \
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"ip", "sp", "lr", "pc", /* 12 13 14 15 */ \
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"f0", "f1", "f2", "f3", /* 16 17 18 19 */ \
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"f4", "f5", "f6", "f7", /* 20 21 22 23 */ \
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"fps","ps" } /* 24 25 */
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#define REGISTER_NAMES ADDITIONAL_REGISTER_NAMES
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#ifndef REGISTER_NAMES
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#define REGISTER_NAMES ORIGINAL_REGISTER_NAMES
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#endif
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/* Register numbers of various important registers.
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Note that some of these values are "real" register numbers,
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and correspond to the general registers of the machine,
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and some are "phony" register numbers which are too large
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to be actual register numbers as far as the user is concerned
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but do serve to get the desired values when passed to read_register. */
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#define A1_REGNUM 0 /* first integer-like argument */
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#define A4_REGNUM 3 /* last integer-like argument */
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#define AP_REGNUM 11
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#define FP_REGNUM 11 /* Contains address of executing stack frame */
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#define SP_REGNUM 13 /* Contains address of top of stack */
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#define LR_REGNUM 14 /* address to return to from a function call */
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#define PC_REGNUM 15 /* Contains program counter */
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#define F0_REGNUM 16 /* first floating point register */
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#define F3_REGNUM 19 /* last floating point argument register */
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#define F7_REGNUM 23 /* last floating point register */
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#define FPS_REGNUM 24 /* floating point status register */
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#define PS_REGNUM 25 /* Contains processor status */
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#define THUMB_FP_REGNUM 7 /* R7 is frame register on Thumb */
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#define ARM_NUM_ARG_REGS 4
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#define ARM_LAST_ARG_REGNUM A4_REGNUM
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#define ARM_NUM_FP_ARG_REGS 4
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#define ARM_LAST_FP_ARG_REGNUM F3_REGNUM
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/* Instruction condition field values. */
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#define INST_EQ 0x0
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#define INST_NE 0x1
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#define INST_CS 0x2
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#define INST_CC 0x3
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#define INST_MI 0x4
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#define INST_PL 0x5
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#define INST_VS 0x6
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#define INST_VC 0x7
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#define INST_HI 0x8
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#define INST_LS 0x9
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#define INST_GE 0xa
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#define INST_LT 0xb
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#define INST_GT 0xc
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#define INST_LE 0xd
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#define INST_AL 0xe
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#define INST_NV 0xf
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#define FLAG_N 0x80000000
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#define FLAG_Z 0x40000000
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#define FLAG_C 0x20000000
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#define FLAG_V 0x10000000
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/* Total amount of space needed to store our copies of the machine's
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register state, the array `registers'. */
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#define REGISTER_BYTES (16*4 + 12*8 + 4 + 4)
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/* Index within `registers' of the first byte of the space for
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register N. */
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#define REGISTER_BYTE(N) (((N) < F0_REGNUM) ? (N)*4 : \
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(((N) < PS_REGNUM) ? 16*4 + ((N) - 16)*12 : \
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16*4 + 8*12 + ((N) - FPS_REGNUM) * 4))
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/* Number of bytes of storage in the actual machine representation
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for register N. On the vax, all regs are 4 bytes. */
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#define REGISTER_RAW_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 12)
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/* Number of bytes of storage in the program's representation
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for register N. On the vax, all regs are 4 bytes. */
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#define REGISTER_VIRTUAL_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 8)
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/* Largest value REGISTER_RAW_SIZE can have. */
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#define MAX_REGISTER_RAW_SIZE 12
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/* Largest value REGISTER_VIRTUAL_SIZE can have. */
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#define MAX_REGISTER_VIRTUAL_SIZE 8
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/* Nonzero if register N requires conversion
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from raw format to virtual format. */
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#define REGISTER_CONVERTIBLE(N) ((unsigned)(N) - F0_REGNUM < 8)
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/* Convert data from raw format for register REGNUM in buffer FROM
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to virtual format with type TYPE in buffer TO. */
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#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
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{ \
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double val; \
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convert_from_extended ((FROM), & val); \
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store_floating ((TO), TYPE_LENGTH (TYPE), val); \
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}
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/* Convert data from virtual format with type TYPE in buffer FROM
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to raw format for register REGNUM in buffer TO. */
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#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
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{ \
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double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
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convert_to_extended (&val, (TO)); \
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}
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/* Return the GDB type object for the "standard" data type
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of data in register N. */
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#define REGISTER_VIRTUAL_TYPE(N) \
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(((unsigned)(N) - F0_REGNUM) < 8 ? builtin_type_double : builtin_type_int)
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/* The system C compiler uses a similar structure return convention to gcc */
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#define USE_STRUCT_CONVENTION(gcc_p, type) (TYPE_LENGTH (type) > 4)
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|
||||
/* 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 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) */
|
||||
|
||||
#define EXTRA_FRAME_INFO \
|
||||
struct frame_saved_regs fsr; \
|
||||
int framesize; \
|
||||
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)
|
||||
|
||||
/* 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)
|
||||
|
||||
/* 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. */
|
||||
|
||||
struct frame_saved_regs;
|
||||
struct frame_info;
|
||||
void frame_find_saved_regs PARAMS((struct frame_info *fi,
|
||||
struct frame_saved_regs *fsr));
|
||||
|
||||
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
|
||||
arm_frame_find_saved_regs (frame_info, &(frame_saved_regs));
|
||||
|
||||
|
||||
/* Things needed for making the inferior call functions. */
|
||||
|
||||
#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));
|
||||
|
||||
/* Push an empty stack frame, to record the current PC, etc. */
|
||||
|
||||
void arm_push_dummy_frame PARAMS ((void));
|
||||
|
||||
#define PUSH_DUMMY_FRAME arm_push_dummy_frame ()
|
||||
|
||||
/* Discard from the stack the innermost frame, restoring all registers. */
|
||||
|
||||
void arm_pop_frame PARAMS ((void));
|
||||
|
||||
#define POP_FRAME arm_pop_frame ()
|
||||
|
||||
/* 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));
|
||||
|
||||
/* Insert the specified number of args and function address
|
||||
into a call sequence of the above form stored at DUMMYNAME. */
|
||||
|
||||
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
|
||||
arm_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
|
||||
|
||||
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));
|
||||
|
||||
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));
|
||||
|
||||
/* Function to determine whether MEMADDR is in a Thumb function. */
|
||||
extern int arm_pc_is_thumb PARAMS ((bfd_vma memaddr));
|
||||
|
||||
/* 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)
|
||||
|
||||
/* 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); }
|
||||
|
||||
|
||||
V850 example
|
||||
|
||||
|
||||
#define TARGET_BYTE_ORDER BIG_ENDIAN
|
||||
|
||||
#define NUM_REGS 66
|
||||
|
||||
#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 */
|
||||
|
||||
/* 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 */
|
||||
#define FUNCTION_START_OFFSET 0
|
||||
|
||||
/* mvs_check DECR_PC_AFTER_BREAK */
|
||||
#define DECR_PC_AFTER_BREAK 0
|
||||
|
||||
/* mvs_check INNER_THAN */
|
||||
#define INNER_THAN <
|
||||
|
||||
/* mvs_check SAVED_PC_AFTER_CALL */
|
||||
#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
|
||||
|
||||
#ifdef __STDC__
|
||||
|
|
@ -95,140 +713,79 @@ struct type;
|
|||
struct value;
|
||||
#endif
|
||||
|
||||
/* 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) */
|
||||
|
||||
/* mvs_check EXTRA_FRAME_INFO */
|
||||
#define EXTRA_FRAME_INFO \
|
||||
struct frame_saved_regs fsr; \
|
||||
int framesize; \
|
||||
int using_frame_pointer;
|
||||
|
||||
#define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
|
||||
|
||||
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 */
|
||||
|
||||
extern void
|
||||
fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi,
|
||||
struct frame_saved_regs *regaddr));
|
||||
|
||||
/* 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. */
|
||||
|
||||
/* 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))
|
||||
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));
|
||||
/* mvs_check FRAME_CHAIN */
|
||||
#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
|
||||
#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
|
||||
#define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI)
|
||||
|
||||
#define FRAME_CHAIN_VALID(fp, frame) generic_frame_chain_valid (fp, frame)
|
||||
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))
|
||||
|
||||
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)
|
||||
|
||||
/* 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))
|
||||
|
||||
/* 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));
|
||||
|
||||
extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
|
||||
/* mvs_check SKIP_PROLOGUE */
|
||||
#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
|
||||
|
||||
/* mvs_no_check FRAME_ARGS_SKIP */
|
||||
#define FRAME_ARGS_SKIP 0
|
||||
|
||||
/* 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)
|
||||
|
||||
#define COERCE_FLOAT_TO_DOUBLE 1
|
||||
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||||
#define TARGET_WRITE_SP fr30_write_sp
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||||
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||||
|
||||
|
||||
|
||||
|
||||
|
||||
/* struct passing and returning stuff */
|
||||
#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
|
||||
write_register (0, STRUCT_ADDR)
|
||||
|
||||
#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
|
||||
(TYPE_LENGTH (TYPE) > 8)
|
||||
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 REG_STRUCT_HAS_ADDR(gcc_p,type) (TYPE_LENGTH (type) > 8)
|
||||
#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)
|
||||
|
||||
/* generic dummy frame stuff */
|
||||
#define FRAME_ARGS_SKIP 0
|
||||
|
||||
#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
|
||||
#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
|
||||
#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
|
||||
#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
|
||||
#define FRAME_NUM_ARGS(val, fi) ((val) = -1)
|
||||
|
||||
|
||||
/* target-specific dummy_frame stuff */
|
||||
|
||||
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) */
|
||||
|
||||
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));
|
||||
|
||||
|
||||
|
||||
/* 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 PUSH_RETURN_ADDRESS(PC, SP) fr30_push_return_address (PC, SP)
|
||||
|
||||
/* override the standard get_saved_register function with
|
||||
one that takes account of generic CALL_DUMMY frames */
|
||||
#define GET_SAVED_REGISTER
|
||||
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. */
|
||||
|
|
|
|||
Loading…
Reference in a new issue