diff options
Diffstat (limited to 'gdb/config/arc/tm-arc.h')
| -rw-r--r-- | gdb/config/arc/tm-arc.h | 672 |
1 files changed, 336 insertions, 336 deletions
diff --git a/gdb/config/arc/tm-arc.h b/gdb/config/arc/tm-arc.h index cbdcf41e0e9..1c7c74f7a9e 100644 --- a/gdb/config/arc/tm-arc.h +++ b/gdb/config/arc/tm-arc.h @@ -1,336 +1,336 @@ -/* Parameters for target machine ARC, for GDB, the GNU debugger. - Copyright 1995, 1996, 1998, 1999, 2000 Free Software Foundation, Inc. - Contributed by Cygnus Support. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "regcache.h" - -/* Used by arc-tdep.c to set the default cpu type. */ -#define DEFAULT_ARC_CPU_TYPE "base" - -/* Offset from address of function to start of its code. - Zero on most machines. */ -#define FUNCTION_START_OFFSET 0 - -/* Advance PC across any function entry prologue instructions - to reach some "real" code. */ - -#define SKIP_PROLOGUE(pc) (arc_skip_prologue (pc, 0)) -extern CORE_ADDR arc_skip_prologue (CORE_ADDR, int); - -#define PROLOGUE_FRAMELESS_P(pc) arc_prologue_frameless_p(pc) -extern int arc_prologue_frameless_p (CORE_ADDR); - -/* Sequence of bytes for breakpoint instruction. - ??? The current value is "sr -1,[-1]" and is for the simulator only. - The simulator watches for this and does the right thing. - The hardware version will have to associate with each breakpoint - the sequence "flag 1; nop; nop; nop". IE: The breakpoint insn will not - be a fixed set of bits but instead will be a branch to a semi-random - address. Presumably this will be cleaned up for "second silicon". */ -#define BIG_BREAKPOINT { 0x12, 0x1f, 0xff, 0xff } -#define LITTLE_BREAKPOINT { 0xff, 0xff, 0x1f, 0x12 } - -/* Given the exposed pipeline, there isn't any one correct value. - However, this value must be 4. GDB can't handle any other value (other than - zero). See for example infrun.c: - "prev_pc != stop_pc - DECR_PC_AFTER_BREAK" */ -/* FIXME */ -#define DECR_PC_AFTER_BREAK 8 - -/* We don't have a reliable single step facility. - ??? We do have a cycle single step facility, but that won't work. */ -#define SOFTWARE_SINGLE_STEP_P() 1 -extern void arc_software_single_step (enum target_signal, int); -#define SOFTWARE_SINGLE_STEP(sig,bp_p) arc_software_single_step (sig, bp_p) - -/* FIXME: Need to set STEP_SKIPS_DELAY. */ - -/* Given a pc value as defined by the hardware, return the real address. - Remember that on the ARC blink contains that status register which - includes PC + flags (so we have to mask out the flags). */ -#define ARC_PC_TO_REAL_ADDRESS(pc) (((pc) & 0xffffff) << 2) - -/* Immediately after a function call, return the saved pc. - Can't always go through the frames for this because on some machines - the new frame is not set up until the new function - executes some instructions. */ - -#define SAVED_PC_AFTER_CALL(frame) \ - (ARC_PC_TO_REAL_ADDRESS (read_register (BLINK_REGNUM))) - -/* Stack grows upward */ - -#define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) - -/* Say how long (ordinary) registers are. This is a piece of bogosity - used in push_word and a few other places; REGISTER_RAW_SIZE is the - real way to know how big a register is. */ -#define REGISTER_SIZE 4 - -/* Number of machine registers */ -#define NUM_REGS 92 - -/* Initializer for an array of names of registers. - There should be NUM_REGS strings in this initializer. */ - -#define REGISTER_NAMES \ -{ \ - /* 0 */ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ - /* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ - /* 16 */ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ - /* 24 */ "r24", "r25", "r26", "fp", "sp", "ilink1", "ilink2", "blink", \ - /* 32 */ "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39", \ - /* 40 */ "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47", \ - /* 48 */ "r48", "r49", "r50", "r51", "r52", "r53", "r54", "r55", \ - /* 56 */ "r56", "mlo", "mmid", "mhi", "lp_count", \ - /* 61 */ "status", "sema", "lp_start", "lp_end", "identity", "debug", \ - /* 67 */ "aux10", "aux11", "aux12", "aux13", "aux14", \ - /* 72 */ "aux15", "aux16", "aux17", "aux18", "aux19", \ - /* 77 */ "aux1a", "aux1b", "aux1c", "aux1d", "aux1e", \ - /* 82 */ "aux1f", "aux20", "aux21", "aux22", \ - /* 86 */ "aux30", "aux31", "aux32", "aux33", "aux40", \ - /* 91 */ "pc" \ -} - -/* Register numbers of various important registers (used to index - into arrays of register names and register values). */ - -#define R0_REGNUM 0 /* First local register */ -#define R59_REGNUM 59 /* Last local register */ -#define FP_REGNUM 27 /* Contains address of executing stack frame */ -#define SP_REGNUM 28 /* stack pointer */ -#define BLINK_REGNUM 31 /* link register */ -#define STA_REGNUM 61 /* processor status word */ -#define PC_REGNUM 91 /* instruction pointer */ -#define AUX_BEG_REGNUM 61 /* aux reg begins */ -#define AUX_END_REGNUM 90 /* aux reg ends, pc not real aux reg */ - -/* Fake registers used to mark immediate data. */ -#define SHIMM_FLAG_REGNUM 61 -#define LIMM_REGNUM 62 -#define SHIMM_REGNUM 63 - -#define AUX_REG_MAP \ -{ \ - { 0, 1, 2, 3, 4, 5, \ - 16, -1, -1, -1, -1, \ - -1, -1, -1, -1, -1, \ - -1, -1, -1, -1, 30, \ - -1, 32, 33, -1, \ - 48, 49, 50, 51, 64, \ - 0 \ - }, \ - { 0, 1, 2, 3, 4, 5, \ - 16, -1, -1, -1, -1, \ - -1, -1, -1, -1, -1, \ - -1, -1, -1, -1, 30, \ - 31, 32, 33, -1, \ - -1, -1, -1, -1, -1, \ - 0 \ - }, \ - { 0, 1, 2, 3, 4, 5, \ - 16, 17, 18, 19, 20, \ - 21, 22, 23, 24, 25, \ - 26, 27, 28, 29, 30, \ - 31, 32, 33, 34, \ - -1, -1, -1, -1, -1, \ - 0 \ - } \ -} - -#define PFP_REGNUM R0_REGNUM /* Previous frame pointer */ - -/* Total amount of space needed to store our copies of the machine's - register state, the array `registers'. */ -#define REGISTER_BYTES (NUM_REGS * 4) - -/* Index within `registers' of the first byte of the space for register N. */ -#define REGISTER_BYTE(N) (4*(N)) - -/* Number of bytes of storage in the actual machine representation - for register N. */ -#define REGISTER_RAW_SIZE(N) 4 - -/* Number of bytes of storage in the program's representation for register N. */ -#define REGISTER_VIRTUAL_SIZE(N) 4 - -/* Largest value REGISTER_RAW_SIZE can have. */ -#define MAX_REGISTER_RAW_SIZE 4 - -/* Largest value REGISTER_VIRTUAL_SIZE can have. */ -#define MAX_REGISTER_VIRTUAL_SIZE 4 - -/* Return the GDB type object for the "standard" data type - of data in register N. */ -#define REGISTER_VIRTUAL_TYPE(N) (builtin_type_int) - - -/* Macros for understanding function return values... */ - -/* Does the specified function use the "struct returning" convention - or the "value returning" convention? The "value returning" convention - almost invariably returns the entire value in registers. The - "struct returning" convention often returns the entire value in - memory, and passes a pointer (out of or into the function) saying - where the value (is or should go). - - Since this sometimes depends on whether it was compiled with GCC, - this is also an argument. This is used in call_function to build a - stack, and in value_being_returned to print return values. - - On arc, a structure is always retunred with pointer in r0. */ - -#define USE_STRUCT_CONVENTION(gcc_p, type) 1 - -/* 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. This is only called if USE_STRUCT_CONVENTION for this - type is 0. - */ -#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - memcpy(VALBUF, REGBUF+REGISTER_BYTE(R0_REGNUM), TYPE_LENGTH (TYPE)) - -/* If USE_STRUCT_CONVENTION produces a 1, - 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) \ - (error("Don't know where large structure is returned on arc"), 0) - -/* Write into appropriate registers a function return value - of type TYPE, given in virtual format, for "value returning" functions. - For 'return' command: not (yet) implemented for arc. */ -#define STORE_RETURN_VALUE(TYPE,VALBUF) \ - error ("Returning values from functions is not implemented in arc gdb") - -/* 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) \ - error ("Returning values from functions is not implemented in arc gdb") - - -/* Describe the pointer in each stack frame to the previous stack frame - (its caller). */ - -/* We cache information about saved registers in the frame structure, - to save us from having to re-scan function prologues every time - a register in a non-current frame is accessed. */ - -#define EXTRA_FRAME_INFO \ - struct frame_saved_regs *fsr; \ - CORE_ADDR arg_pointer; - -/* Zero the frame_saved_regs pointer when the frame is initialized, - so that FRAME_FIND_SAVED_REGS () will know to allocate and - initialize a frame_saved_regs struct the first time it is called. - Set the arg_pointer to -1, which is not valid; 0 and other values - indicate real, cached values. */ - -#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ - ((fi)->fsr = 0, (fi)->arg_pointer = -1) - -/* 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. */ -/* On the arc, we get the chain pointer by reading the PFP saved - on the stack. */ -/* The PFP and RPC is in fp and fp+4. */ - -#define FRAME_CHAIN(thisframe) \ - (read_memory_integer (FRAME_FP (thisframe), 4)) - -/* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one - and has no caller. */ -#define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe) - -/* An expression that tells us whether the function invocation represented - by FI does not have a frame on the stack associated with it. */ - -#define FRAMELESS_FUNCTION_INVOCATION(FI) \ - (((FI)->signal_handler_caller) ? 0 : frameless_look_for_prologue (FI)) - -/* Where is the PC for a specific frame. - A leaf function may never save blink, so we have to check for that here. */ - -#define FRAME_SAVED_PC(frame) (arc_frame_saved_pc (frame)) -struct frame_info; /* in case frame.h not included yet */ -CORE_ADDR arc_frame_saved_pc (struct frame_info *); - -/* If the argument is on the stack, it will be here. - We cache this value in the frame info if we've already looked it up. */ -/* ??? Is the arg_pointer check necessary? */ - -#define FRAME_ARGS_ADDRESS(fi) \ - (((fi)->arg_pointer != -1) ? (fi)->arg_pointer : (fi)->frame) - -/* This is the same except it should return 0 when - it does not really know where the args are, rather than guessing. - This value is not cached since it is only used infrequently. */ - -#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) - -/* Set NUMARGS to the number of args passed to a frame. - Can return -1, meaning no way to tell. */ - -#define FRAME_NUM_ARGS(fi) (-1) - -/* Return number of bytes at start of arglist that are not really args. */ - -#define FRAME_ARGS_SKIP 0 - -/* Produce the positions of the saved registers in a stack frame. */ - -#define FRAME_FIND_SAVED_REGS(frame_info_addr, sr) \ - frame_find_saved_regs (frame_info_addr, &sr) -extern void frame_find_saved_regs (); /* See arc-tdep.c */ - - -/* Things needed for making calls to functions in the inferior process */ -void arc_push_dummy_frame (void); -#define PUSH_DUMMY_FRAME \ - arc_push_dummy_frame () - -/* Discard from the stack the innermost frame, restoring all registers. */ -void arc_pop_frame (void); -#define POP_FRAME \ - arc_pop_frame () - -/* This sequence of words is the instructions bl xxxx, flag 1 */ -#define CALL_DUMMY { 0x28000000, 0x1fbe8001 } -#define CALL_DUMMY_LENGTH 8 - -/* Start execution at beginning of dummy */ -#define CALL_DUMMY_START_OFFSET 0 - -/* 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) \ -{ \ - int from, to, delta, loc; \ - loc = (int)(read_register (SP_REGNUM) - CALL_DUMMY_LENGTH); \ - from = loc + 4; \ - to = (int)(fun); \ - delta = (to - from) >> 2; \ - *((char *)(dummyname) + 1) = (delta & 0x1); \ - *((char *)(dummyname) + 2) = ((delta >> 1) & 0xff); \ - *((char *)(dummyname) + 3) = ((delta >> 9) & 0xff); \ - *((char *)(dummyname) + 4) = ((delta >> 17) & 0x7); \ -} +// OBSOLETE /* Parameters for target machine ARC, for GDB, the GNU debugger. +// OBSOLETE Copyright 1995, 1996, 1998, 1999, 2000 Free Software Foundation, Inc. +// OBSOLETE Contributed by Cygnus Support. +// OBSOLETE +// OBSOLETE This file is part of GDB. +// OBSOLETE +// OBSOLETE This program is free software; you can redistribute it and/or modify +// OBSOLETE it under the terms of the GNU General Public License as published by +// OBSOLETE the Free Software Foundation; either version 2 of the License, or +// OBSOLETE (at your option) any later version. +// OBSOLETE +// OBSOLETE This program is distributed in the hope that it will be useful, +// OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of +// OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// OBSOLETE GNU General Public License for more details. +// OBSOLETE +// OBSOLETE You should have received a copy of the GNU General Public License +// OBSOLETE along with this program; if not, write to the Free Software +// OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, +// OBSOLETE Boston, MA 02111-1307, USA. */ +// OBSOLETE +// OBSOLETE #include "regcache.h" +// OBSOLETE +// OBSOLETE /* Used by arc-tdep.c to set the default cpu type. */ +// OBSOLETE #define DEFAULT_ARC_CPU_TYPE "base" +// OBSOLETE +// OBSOLETE /* Offset from address of function to start of its code. +// OBSOLETE Zero on most machines. */ +// OBSOLETE #define FUNCTION_START_OFFSET 0 +// OBSOLETE +// OBSOLETE /* Advance PC across any function entry prologue instructions +// OBSOLETE to reach some "real" code. */ +// OBSOLETE +// OBSOLETE #define SKIP_PROLOGUE(pc) (arc_skip_prologue (pc, 0)) +// OBSOLETE extern CORE_ADDR arc_skip_prologue (CORE_ADDR, int); +// OBSOLETE +// OBSOLETE #define PROLOGUE_FRAMELESS_P(pc) arc_prologue_frameless_p(pc) +// OBSOLETE extern int arc_prologue_frameless_p (CORE_ADDR); +// OBSOLETE +// OBSOLETE /* Sequence of bytes for breakpoint instruction. +// OBSOLETE ??? The current value is "sr -1,[-1]" and is for the simulator only. +// OBSOLETE The simulator watches for this and does the right thing. +// OBSOLETE The hardware version will have to associate with each breakpoint +// OBSOLETE the sequence "flag 1; nop; nop; nop". IE: The breakpoint insn will not +// OBSOLETE be a fixed set of bits but instead will be a branch to a semi-random +// OBSOLETE address. Presumably this will be cleaned up for "second silicon". */ +// OBSOLETE #define BIG_BREAKPOINT { 0x12, 0x1f, 0xff, 0xff } +// OBSOLETE #define LITTLE_BREAKPOINT { 0xff, 0xff, 0x1f, 0x12 } +// OBSOLETE +// OBSOLETE /* Given the exposed pipeline, there isn't any one correct value. +// OBSOLETE However, this value must be 4. GDB can't handle any other value (other than +// OBSOLETE zero). See for example infrun.c: +// OBSOLETE "prev_pc != stop_pc - DECR_PC_AFTER_BREAK" */ +// OBSOLETE /* FIXME */ +// OBSOLETE #define DECR_PC_AFTER_BREAK 8 +// OBSOLETE +// OBSOLETE /* We don't have a reliable single step facility. +// OBSOLETE ??? We do have a cycle single step facility, but that won't work. */ +// OBSOLETE #define SOFTWARE_SINGLE_STEP_P() 1 +// OBSOLETE extern void arc_software_single_step (enum target_signal, int); +// OBSOLETE #define SOFTWARE_SINGLE_STEP(sig,bp_p) arc_software_single_step (sig, bp_p) +// OBSOLETE +// OBSOLETE /* FIXME: Need to set STEP_SKIPS_DELAY. */ +// OBSOLETE +// OBSOLETE /* Given a pc value as defined by the hardware, return the real address. +// OBSOLETE Remember that on the ARC blink contains that status register which +// OBSOLETE includes PC + flags (so we have to mask out the flags). */ +// OBSOLETE #define ARC_PC_TO_REAL_ADDRESS(pc) (((pc) & 0xffffff) << 2) +// OBSOLETE +// OBSOLETE /* Immediately after a function call, return the saved pc. +// OBSOLETE Can't always go through the frames for this because on some machines +// OBSOLETE the new frame is not set up until the new function +// OBSOLETE executes some instructions. */ +// OBSOLETE +// OBSOLETE #define SAVED_PC_AFTER_CALL(frame) \ +// OBSOLETE (ARC_PC_TO_REAL_ADDRESS (read_register (BLINK_REGNUM))) +// OBSOLETE +// OBSOLETE /* Stack grows upward */ +// OBSOLETE +// OBSOLETE #define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) +// OBSOLETE +// OBSOLETE /* Say how long (ordinary) registers are. This is a piece of bogosity +// OBSOLETE used in push_word and a few other places; REGISTER_RAW_SIZE is the +// OBSOLETE real way to know how big a register is. */ +// OBSOLETE #define REGISTER_SIZE 4 +// OBSOLETE +// OBSOLETE /* Number of machine registers */ +// OBSOLETE #define NUM_REGS 92 +// OBSOLETE +// OBSOLETE /* Initializer for an array of names of registers. +// OBSOLETE There should be NUM_REGS strings in this initializer. */ +// OBSOLETE +// OBSOLETE #define REGISTER_NAMES \ +// OBSOLETE { \ +// OBSOLETE /* 0 */ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ +// OBSOLETE /* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ +// OBSOLETE /* 16 */ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ +// OBSOLETE /* 24 */ "r24", "r25", "r26", "fp", "sp", "ilink1", "ilink2", "blink", \ +// OBSOLETE /* 32 */ "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39", \ +// OBSOLETE /* 40 */ "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47", \ +// OBSOLETE /* 48 */ "r48", "r49", "r50", "r51", "r52", "r53", "r54", "r55", \ +// OBSOLETE /* 56 */ "r56", "mlo", "mmid", "mhi", "lp_count", \ +// OBSOLETE /* 61 */ "status", "sema", "lp_start", "lp_end", "identity", "debug", \ +// OBSOLETE /* 67 */ "aux10", "aux11", "aux12", "aux13", "aux14", \ +// OBSOLETE /* 72 */ "aux15", "aux16", "aux17", "aux18", "aux19", \ +// OBSOLETE /* 77 */ "aux1a", "aux1b", "aux1c", "aux1d", "aux1e", \ +// OBSOLETE /* 82 */ "aux1f", "aux20", "aux21", "aux22", \ +// OBSOLETE /* 86 */ "aux30", "aux31", "aux32", "aux33", "aux40", \ +// OBSOLETE /* 91 */ "pc" \ +// OBSOLETE } +// OBSOLETE +// OBSOLETE /* Register numbers of various important registers (used to index +// OBSOLETE into arrays of register names and register values). */ +// OBSOLETE +// OBSOLETE #define R0_REGNUM 0 /* First local register */ +// OBSOLETE #define R59_REGNUM 59 /* Last local register */ +// OBSOLETE #define FP_REGNUM 27 /* Contains address of executing stack frame */ +// OBSOLETE #define SP_REGNUM 28 /* stack pointer */ +// OBSOLETE #define BLINK_REGNUM 31 /* link register */ +// OBSOLETE #define STA_REGNUM 61 /* processor status word */ +// OBSOLETE #define PC_REGNUM 91 /* instruction pointer */ +// OBSOLETE #define AUX_BEG_REGNUM 61 /* aux reg begins */ +// OBSOLETE #define AUX_END_REGNUM 90 /* aux reg ends, pc not real aux reg */ +// OBSOLETE +// OBSOLETE /* Fake registers used to mark immediate data. */ +// OBSOLETE #define SHIMM_FLAG_REGNUM 61 +// OBSOLETE #define LIMM_REGNUM 62 +// OBSOLETE #define SHIMM_REGNUM 63 +// OBSOLETE +// OBSOLETE #define AUX_REG_MAP \ +// OBSOLETE { \ +// OBSOLETE { 0, 1, 2, 3, 4, 5, \ +// OBSOLETE 16, -1, -1, -1, -1, \ +// OBSOLETE -1, -1, -1, -1, -1, \ +// OBSOLETE -1, -1, -1, -1, 30, \ +// OBSOLETE -1, 32, 33, -1, \ +// OBSOLETE 48, 49, 50, 51, 64, \ +// OBSOLETE 0 \ +// OBSOLETE }, \ +// OBSOLETE { 0, 1, 2, 3, 4, 5, \ +// OBSOLETE 16, -1, -1, -1, -1, \ +// OBSOLETE -1, -1, -1, -1, -1, \ +// OBSOLETE -1, -1, -1, -1, 30, \ +// OBSOLETE 31, 32, 33, -1, \ +// OBSOLETE -1, -1, -1, -1, -1, \ +// OBSOLETE 0 \ +// OBSOLETE }, \ +// OBSOLETE { 0, 1, 2, 3, 4, 5, \ +// OBSOLETE 16, 17, 18, 19, 20, \ +// OBSOLETE 21, 22, 23, 24, 25, \ +// OBSOLETE 26, 27, 28, 29, 30, \ +// OBSOLETE 31, 32, 33, 34, \ +// OBSOLETE -1, -1, -1, -1, -1, \ +// OBSOLETE 0 \ +// OBSOLETE } \ +// OBSOLETE } +// OBSOLETE +// OBSOLETE #define PFP_REGNUM R0_REGNUM /* Previous frame pointer */ +// OBSOLETE +// OBSOLETE /* Total amount of space needed to store our copies of the machine's +// OBSOLETE register state, the array `registers'. */ +// OBSOLETE #define REGISTER_BYTES (NUM_REGS * 4) +// OBSOLETE +// OBSOLETE /* Index within `registers' of the first byte of the space for register N. */ +// OBSOLETE #define REGISTER_BYTE(N) (4*(N)) +// OBSOLETE +// OBSOLETE /* Number of bytes of storage in the actual machine representation +// OBSOLETE for register N. */ +// OBSOLETE #define REGISTER_RAW_SIZE(N) 4 +// OBSOLETE +// OBSOLETE /* Number of bytes of storage in the program's representation for register N. */ +// OBSOLETE #define REGISTER_VIRTUAL_SIZE(N) 4 +// OBSOLETE +// OBSOLETE /* Largest value REGISTER_RAW_SIZE can have. */ +// OBSOLETE #define MAX_REGISTER_RAW_SIZE 4 +// OBSOLETE +// OBSOLETE /* Largest value REGISTER_VIRTUAL_SIZE can have. */ +// OBSOLETE #define MAX_REGISTER_VIRTUAL_SIZE 4 +// OBSOLETE +// OBSOLETE /* Return the GDB type object for the "standard" data type +// OBSOLETE of data in register N. */ +// OBSOLETE #define REGISTER_VIRTUAL_TYPE(N) (builtin_type_int) +// OBSOLETE +// OBSOLETE +// OBSOLETE /* Macros for understanding function return values... */ +// OBSOLETE +// OBSOLETE /* Does the specified function use the "struct returning" convention +// OBSOLETE or the "value returning" convention? The "value returning" convention +// OBSOLETE almost invariably returns the entire value in registers. The +// OBSOLETE "struct returning" convention often returns the entire value in +// OBSOLETE memory, and passes a pointer (out of or into the function) saying +// OBSOLETE where the value (is or should go). +// OBSOLETE +// OBSOLETE Since this sometimes depends on whether it was compiled with GCC, +// OBSOLETE this is also an argument. This is used in call_function to build a +// OBSOLETE stack, and in value_being_returned to print return values. +// OBSOLETE +// OBSOLETE On arc, a structure is always retunred with pointer in r0. */ +// OBSOLETE +// OBSOLETE #define USE_STRUCT_CONVENTION(gcc_p, type) 1 +// OBSOLETE +// OBSOLETE /* Extract from an array REGBUF containing the (raw) register state +// OBSOLETE a function return value of type TYPE, and copy that, in virtual format, +// OBSOLETE into VALBUF. This is only called if USE_STRUCT_CONVENTION for this +// OBSOLETE type is 0. +// OBSOLETE */ +// OBSOLETE #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ +// OBSOLETE memcpy(VALBUF, REGBUF+REGISTER_BYTE(R0_REGNUM), TYPE_LENGTH (TYPE)) +// OBSOLETE +// OBSOLETE /* If USE_STRUCT_CONVENTION produces a 1, +// OBSOLETE extract from an array REGBUF containing the (raw) register state +// OBSOLETE the address in which a function should return its structure value, +// OBSOLETE as a CORE_ADDR (or an expression that can be used as one). */ +// OBSOLETE #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ +// OBSOLETE (error("Don't know where large structure is returned on arc"), 0) +// OBSOLETE +// OBSOLETE /* Write into appropriate registers a function return value +// OBSOLETE of type TYPE, given in virtual format, for "value returning" functions. +// OBSOLETE For 'return' command: not (yet) implemented for arc. */ +// OBSOLETE #define STORE_RETURN_VALUE(TYPE,VALBUF) \ +// OBSOLETE error ("Returning values from functions is not implemented in arc gdb") +// OBSOLETE +// OBSOLETE /* Store the address of the place in which to copy the structure the +// OBSOLETE subroutine will return. This is called from call_function. */ +// OBSOLETE #define STORE_STRUCT_RETURN(ADDR, SP) \ +// OBSOLETE error ("Returning values from functions is not implemented in arc gdb") +// OBSOLETE +// OBSOLETE +// OBSOLETE /* Describe the pointer in each stack frame to the previous stack frame +// OBSOLETE (its caller). */ +// OBSOLETE +// OBSOLETE /* We cache information about saved registers in the frame structure, +// OBSOLETE to save us from having to re-scan function prologues every time +// OBSOLETE a register in a non-current frame is accessed. */ +// OBSOLETE +// OBSOLETE #define EXTRA_FRAME_INFO \ +// OBSOLETE struct frame_saved_regs *fsr; \ +// OBSOLETE CORE_ADDR arg_pointer; +// OBSOLETE +// OBSOLETE /* Zero the frame_saved_regs pointer when the frame is initialized, +// OBSOLETE so that FRAME_FIND_SAVED_REGS () will know to allocate and +// OBSOLETE initialize a frame_saved_regs struct the first time it is called. +// OBSOLETE Set the arg_pointer to -1, which is not valid; 0 and other values +// OBSOLETE indicate real, cached values. */ +// OBSOLETE +// OBSOLETE #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ +// OBSOLETE ((fi)->fsr = 0, (fi)->arg_pointer = -1) +// OBSOLETE +// OBSOLETE /* FRAME_CHAIN takes a frame's nominal address +// OBSOLETE and produces the frame's chain-pointer. +// OBSOLETE However, if FRAME_CHAIN_VALID returns zero, +// OBSOLETE it means the given frame is the outermost one and has no caller. */ +// OBSOLETE /* On the arc, we get the chain pointer by reading the PFP saved +// OBSOLETE on the stack. */ +// OBSOLETE /* The PFP and RPC is in fp and fp+4. */ +// OBSOLETE +// OBSOLETE #define FRAME_CHAIN(thisframe) \ +// OBSOLETE (read_memory_integer (FRAME_FP (thisframe), 4)) +// OBSOLETE +// OBSOLETE /* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one +// OBSOLETE and has no caller. */ +// OBSOLETE #define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe) +// OBSOLETE +// OBSOLETE /* An expression that tells us whether the function invocation represented +// OBSOLETE by FI does not have a frame on the stack associated with it. */ +// OBSOLETE +// OBSOLETE #define FRAMELESS_FUNCTION_INVOCATION(FI) \ +// OBSOLETE (((FI)->signal_handler_caller) ? 0 : frameless_look_for_prologue (FI)) +// OBSOLETE +// OBSOLETE /* Where is the PC for a specific frame. +// OBSOLETE A leaf function may never save blink, so we have to check for that here. */ +// OBSOLETE +// OBSOLETE #define FRAME_SAVED_PC(frame) (arc_frame_saved_pc (frame)) +// OBSOLETE struct frame_info; /* in case frame.h not included yet */ +// OBSOLETE CORE_ADDR arc_frame_saved_pc (struct frame_info *); +// OBSOLETE +// OBSOLETE /* If the argument is on the stack, it will be here. +// OBSOLETE We cache this value in the frame info if we've already looked it up. */ +// OBSOLETE /* ??? Is the arg_pointer check necessary? */ +// OBSOLETE +// OBSOLETE #define FRAME_ARGS_ADDRESS(fi) \ +// OBSOLETE (((fi)->arg_pointer != -1) ? (fi)->arg_pointer : (fi)->frame) +// OBSOLETE +// OBSOLETE /* This is the same except it should return 0 when +// OBSOLETE it does not really know where the args are, rather than guessing. +// OBSOLETE This value is not cached since it is only used infrequently. */ +// OBSOLETE +// OBSOLETE #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) +// OBSOLETE +// OBSOLETE /* Set NUMARGS to the number of args passed to a frame. +// OBSOLETE Can return -1, meaning no way to tell. */ +// OBSOLETE +// OBSOLETE #define FRAME_NUM_ARGS(fi) (-1) +// OBSOLETE +// OBSOLETE /* Return number of bytes at start of arglist that are not really args. */ +// OBSOLETE +// OBSOLETE #define FRAME_ARGS_SKIP 0 +// OBSOLETE +// OBSOLETE /* Produce the positions of the saved registers in a stack frame. */ +// OBSOLETE +// OBSOLETE #define FRAME_FIND_SAVED_REGS(frame_info_addr, sr) \ +// OBSOLETE frame_find_saved_regs (frame_info_addr, &sr) +// OBSOLETE extern void frame_find_saved_regs (); /* See arc-tdep.c */ +// OBSOLETE +// OBSOLETE +// OBSOLETE /* Things needed for making calls to functions in the inferior process */ +// OBSOLETE void arc_push_dummy_frame (void); +// OBSOLETE #define PUSH_DUMMY_FRAME \ +// OBSOLETE arc_push_dummy_frame () +// OBSOLETE +// OBSOLETE /* Discard from the stack the innermost frame, restoring all registers. */ +// OBSOLETE void arc_pop_frame (void); +// OBSOLETE #define POP_FRAME \ +// OBSOLETE arc_pop_frame () +// OBSOLETE +// OBSOLETE /* This sequence of words is the instructions bl xxxx, flag 1 */ +// OBSOLETE #define CALL_DUMMY { 0x28000000, 0x1fbe8001 } +// OBSOLETE #define CALL_DUMMY_LENGTH 8 +// OBSOLETE +// OBSOLETE /* Start execution at beginning of dummy */ +// OBSOLETE #define CALL_DUMMY_START_OFFSET 0 +// OBSOLETE +// OBSOLETE /* Insert the specified number of args and function address +// OBSOLETE into a call sequence of the above form stored at 'dummyname'. */ +// OBSOLETE #define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ +// OBSOLETE { \ +// OBSOLETE int from, to, delta, loc; \ +// OBSOLETE loc = (int)(read_register (SP_REGNUM) - CALL_DUMMY_LENGTH); \ +// OBSOLETE from = loc + 4; \ +// OBSOLETE to = (int)(fun); \ +// OBSOLETE delta = (to - from) >> 2; \ +// OBSOLETE *((char *)(dummyname) + 1) = (delta & 0x1); \ +// OBSOLETE *((char *)(dummyname) + 2) = ((delta >> 1) & 0xff); \ +// OBSOLETE *((char *)(dummyname) + 3) = ((delta >> 9) & 0xff); \ +// OBSOLETE *((char *)(dummyname) + 4) = ((delta >> 17) & 0x7); \ +// OBSOLETE } |