dc1b349d39
Added some generic target-independant code for managing call-dummy frames.
Wed Nov 27 10:32:14 1996 Michael Snyder <msnyder@cleaver.cygnus.com>
* breakpoint.c: DELETE command will not delete CALL_DUMMY breakpoint.
* blockframe.c: Add target-independant support for managing
CALL_DUMMY frames on the host side.
* frame.h: Declarations for generic CALL_DUMMY frame support.
* h8300-tdep.c: Add target function calls using generic frame support.
* config/h8300/tm-h8300.h: config for generic target function calls.
start-sanitize-m32r
* m32r-tdep.c: Add target function calls using generic frame support.
* config/m32r/tm-m32r.h: config for generic target function calls.
end-sanitize-m32r
* sh-tdep.c: Add target function calls using generic frame support.
* config/sh/tm-sh.h: config for generic target function calls.
start-sanitize-v850
* v850-tdep.c: Add target function calls using generic frame support.
* config/v850/tm-v850.h: config for generic target function calls.
end-sanitize-v850
* valops.c: ADD PUSH_RETURN_ADDRESS so that it doesn't have to be
done by PUSH_ARGUMENTS when there's no CALL_DUMMY.
170 lines
5.8 KiB
C
170 lines
5.8 KiB
C
/* Parameters for execution on an NEC V850 processor.
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Copyright 1996
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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#define TARGET_BYTE_ORDER LITTLE_ENDIAN
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#define NUM_REGS 65
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#define REGISTER_NAMES \
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{ "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7", \
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"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
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"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
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"r24", "r25", "r26", "r27", "r28", "fp", "ep", "r31", \
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\
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"eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", \
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"sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", \
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"sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", \
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"sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", \
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"pc" }
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#define REGISTER_BYTES (NUM_REGS * 4)
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#define REGISTER_SIZE 4
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#define MAX_REGISTER_RAW_SIZE 4
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#define SP_REGNUM 3
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#define ARG0_REGNUM 6
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#define ARGLAST_REGNUM 9
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#define V0_REGNUM 10
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#define V1_REGNUM 11
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#define FP_REGNUM 29
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#define RP_REGNUM 31
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#define PS_REGNUM 37
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#define PC_REGNUM 64
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#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
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#define REGISTER_BYTE(REG) ((REG) * 4)
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#define REGISTER_VIRTUAL_SIZE(REG) 4
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#define REGISTER_RAW_SIZE(REG) 4
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#define MAX_REGISTER_VIRTUAL_SIZE 4
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#define BREAKPOINT {0xff, 0xff}
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#define FUNCTION_START_OFFSET 0
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#define DECR_PC_AFTER_BREAK 0
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#define INNER_THAN <
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#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
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#ifdef __STDC__
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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 void v850_init_extra_frame_info PARAMS ((struct frame_info *fi));
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#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) v850_init_extra_frame_info (fi)
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#define INIT_FRAME_PC /* Not necessary */
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extern void v850_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
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#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
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extern CORE_ADDR v850_frame_chain PARAMS ((struct frame_info *fi));
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#define FRAME_CHAIN(fi) v850_frame_chain (fi)
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#define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI)
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extern CORE_ADDR v850_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
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extern CORE_ADDR v850_frame_saved_pc PARAMS ((struct frame_info *));
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#define FRAME_SAVED_PC(FI) (v850_frame_saved_pc (FI))
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#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
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memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
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#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
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extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
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REGISTER_RAW_SIZE (V0_REGNUM))
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#define STORE_RETURN_VALUE(TYPE, VALBUF) \
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write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
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extern CORE_ADDR v850_skip_prologue PARAMS ((CORE_ADDR pc));
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#define SKIP_PROLOGUE(pc) pc = v850_skip_prologue (pc)
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#define FRAME_ARGS_SKIP 0
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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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#define FRAME_NUM_ARGS(val, fi) ((val) = -1)
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extern void v850_pop_frame PARAMS ((struct frame_info *frame));
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#define POP_FRAME v850_pop_frame (get_current_frame ())
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#if 0
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/* Use these defines if, for whatever reason, you want to use a
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genuine call_dummy sequence (A sequence of machine instructions
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that GDB will write into the target address space, usually on the
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stack, for calling a function in the inferior):
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This sequence of words defines the instructions:
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jarl <offset24>, r31
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trap
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*/
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#define CALL_DUMMY { 0x0000ff80, 0xffffffff }
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#define CALL_DUMMY_LENGTH (8)
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#define CALL_DUMMY_START_OFFSET (0)
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#define CALL_DUMMY_BREAKPOINT_OFFSET (4)
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#define CALL_DUMMY_LOCATION ON_STACK
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#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP) \
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v850_fix_call_dummy (DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP);
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#else /* These defines write NO instructions into the inferior process,
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and are therefore preferred because they make target calls faster. */
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#define CALL_DUMMY {0}
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#define CALL_DUMMY_START_OFFSET (0)
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#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
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#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
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#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
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#define CALL_DUMMY_ADDRESS() entry_point_address ()
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extern CORE_ADDR v850_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
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#define PUSH_RETURN_ADDRESS(PC, SP) v850_push_return_address (PC, SP)
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#endif
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#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
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extern CORE_ADDR
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v850_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
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unsigned char struct_return,
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CORE_ADDR struct_addr));
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#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
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(SP) = v850_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
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#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
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#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
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#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
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(TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
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/* override the default get_saved_register function with
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one that takes account of generic CALL_DUMMY frames */
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#define GET_SAVED_REGISTER
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/* Define this for Wingdb */
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#define TARGET_V850
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