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Diffstat (limited to 'gdb/d10v-tdep.c')
| -rw-r--r-- | gdb/d10v-tdep.c | 1625 |
1 files changed, 0 insertions, 1625 deletions
diff --git a/gdb/d10v-tdep.c b/gdb/d10v-tdep.c deleted file mode 100644 index d06a0b9b107..00000000000 --- a/gdb/d10v-tdep.c +++ /dev/null @@ -1,1625 +0,0 @@ -/* Target-dependent code for Mitsubishi D10V, for GDB. - Copyright 1996, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - - 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. */ - -/* Contributed by Martin Hunt, hunt@cygnus.com */ - -#include "defs.h" -#include "frame.h" -#include "obstack.h" -#include "symtab.h" -#include "gdbtypes.h" -#include "gdbcmd.h" -#include "gdbcore.h" -#include "gdb_string.h" -#include "value.h" -#include "inferior.h" -#include "dis-asm.h" -#include "symfile.h" -#include "objfiles.h" -#include "language.h" -#include "arch-utils.h" -#include "regcache.h" - -#include "floatformat.h" -#include "sim-d10v.h" - -#undef XMALLOC -#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) - -struct frame_extra_info - { - CORE_ADDR return_pc; - int frameless; - int size; - }; - -struct gdbarch_tdep - { - int a0_regnum; - int nr_dmap_regs; - unsigned long (*dmap_register) (int nr); - unsigned long (*imap_register) (int nr); - }; - -/* These are the addresses the D10V-EVA board maps data and - instruction memory to. */ - -#define DMEM_START 0x2000000 -#define IMEM_START 0x1000000 -#define STACK_START 0x200bffe - -/* d10v register names. */ - -enum - { - R0_REGNUM = 0, - LR_REGNUM = 13, - PSW_REGNUM = 16, - NR_IMAP_REGS = 2, - NR_A_REGS = 2 - }; -#define NR_DMAP_REGS (gdbarch_tdep (current_gdbarch)->nr_dmap_regs) -#define A0_REGNUM (gdbarch_tdep (current_gdbarch)->a0_regnum) - -/* d10v calling convention. */ - -#define ARG1_REGNUM R0_REGNUM -#define ARGN_REGNUM 3 -#define RET1_REGNUM R0_REGNUM - -/* Local functions */ - -extern void _initialize_d10v_tdep (void); - -static void d10v_eva_prepare_to_trace (void); - -static void d10v_eva_get_trace_data (void); - -static int prologue_find_regs (unsigned short op, struct frame_info *fi, - CORE_ADDR addr); - -static void d10v_frame_init_saved_regs (struct frame_info *); - -static void do_d10v_pop_frame (struct frame_info *fi); - -static int -d10v_frame_chain_valid (CORE_ADDR chain, struct frame_info *frame) -{ - return ((chain) != 0 && (frame) != 0 - && (frame)->pc > IMEM_START - && !inside_entry_file (FRAME_SAVED_PC (frame))); -} - -static CORE_ADDR -d10v_stack_align (CORE_ADDR len) -{ - return (len + 1) & ~1; -} - -/* Should we use EXTRACT_STRUCT_VALUE_ADDRESS instead of - EXTRACT_RETURN_VALUE? GCC_P is true if compiled with gcc - and TYPE is the type (which is known to be struct, union or array). - - The d10v returns anything less than 8 bytes in size in - registers. */ - -static int -d10v_use_struct_convention (int gcc_p, struct type *type) -{ - long alignment; - int i; - /* The d10v only passes a struct in a register when that structure - has an alignment that matches the size of a register. */ - /* If the structure doesn't fit in 4 registers, put it on the - stack. */ - if (TYPE_LENGTH (type) > 8) - return 1; - /* If the struct contains only one field, don't put it on the stack - - gcc can fit it in one or more registers. */ - if (TYPE_NFIELDS (type) == 1) - return 0; - alignment = TYPE_LENGTH (TYPE_FIELD_TYPE (type, 0)); - for (i = 1; i < TYPE_NFIELDS (type); i++) - { - /* If the alignment changes, just assume it goes on the - stack. */ - if (TYPE_LENGTH (TYPE_FIELD_TYPE (type, i)) != alignment) - return 1; - } - /* If the alignment is suitable for the d10v's 16 bit registers, - don't put it on the stack. */ - if (alignment == 2 || alignment == 4) - return 0; - return 1; -} - - -static unsigned char * -d10v_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr) -{ - static unsigned char breakpoint[] = - {0x2f, 0x90, 0x5e, 0x00}; - *lenptr = sizeof (breakpoint); - return breakpoint; -} - -/* Map the REG_NR onto an ascii name. Return NULL or an empty string - when the reg_nr isn't valid. */ - -enum ts2_regnums - { - TS2_IMAP0_REGNUM = 32, - TS2_DMAP_REGNUM = 34, - TS2_NR_DMAP_REGS = 1, - TS2_A0_REGNUM = 35 - }; - -static char * -d10v_ts2_register_name (int reg_nr) -{ - static char *register_names[] = - { - "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", - "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", - "psw", "bpsw", "pc", "bpc", "cr4", "cr5", "cr6", "rpt_c", - "rpt_s", "rpt_e", "mod_s", "mod_e", "cr12", "cr13", "iba", "cr15", - "imap0", "imap1", "dmap", "a0", "a1" - }; - if (reg_nr < 0) - return NULL; - if (reg_nr >= (sizeof (register_names) / sizeof (*register_names))) - return NULL; - return register_names[reg_nr]; -} - -enum ts3_regnums - { - TS3_IMAP0_REGNUM = 36, - TS3_DMAP0_REGNUM = 38, - TS3_NR_DMAP_REGS = 4, - TS3_A0_REGNUM = 32 - }; - -static char * -d10v_ts3_register_name (int reg_nr) -{ - static char *register_names[] = - { - "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", - "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", - "psw", "bpsw", "pc", "bpc", "cr4", "cr5", "cr6", "rpt_c", - "rpt_s", "rpt_e", "mod_s", "mod_e", "cr12", "cr13", "iba", "cr15", - "a0", "a1", - "spi", "spu", - "imap0", "imap1", - "dmap0", "dmap1", "dmap2", "dmap3" - }; - if (reg_nr < 0) - return NULL; - if (reg_nr >= (sizeof (register_names) / sizeof (*register_names))) - return NULL; - return register_names[reg_nr]; -} - -/* Access the DMAP/IMAP registers in a target independent way. - - Divide the D10V's 64k data space into four 16k segments: - 0x0000 -- 0x3fff, 0x4000 -- 0x7fff, 0x8000 -- 0xbfff, and - 0xc000 -- 0xffff. - - On the TS2, the first two segments (0x0000 -- 0x3fff, 0x4000 -- - 0x7fff) always map to the on-chip data RAM, and the fourth always - maps to I/O space. The third (0x8000 - 0xbfff) can be mapped into - unified memory or instruction memory, under the control of the - single DMAP register. - - On the TS3, there are four DMAP registers, each of which controls - one of the segments. */ - -static unsigned long -d10v_ts2_dmap_register (int reg_nr) -{ - switch (reg_nr) - { - case 0: - case 1: - return 0x2000; - case 2: - return read_register (TS2_DMAP_REGNUM); - default: - return 0; - } -} - -static unsigned long -d10v_ts3_dmap_register (int reg_nr) -{ - return read_register (TS3_DMAP0_REGNUM + reg_nr); -} - -static unsigned long -d10v_dmap_register (int reg_nr) -{ - return gdbarch_tdep (current_gdbarch)->dmap_register (reg_nr); -} - -static unsigned long -d10v_ts2_imap_register (int reg_nr) -{ - return read_register (TS2_IMAP0_REGNUM + reg_nr); -} - -static unsigned long -d10v_ts3_imap_register (int reg_nr) -{ - return read_register (TS3_IMAP0_REGNUM + reg_nr); -} - -static unsigned long -d10v_imap_register (int reg_nr) -{ - return gdbarch_tdep (current_gdbarch)->imap_register (reg_nr); -} - -/* MAP GDB's internal register numbering (determined by the layout fo - the REGISTER_BYTE array) onto the simulator's register - numbering. */ - -static int -d10v_ts2_register_sim_regno (int nr) -{ - if (nr >= TS2_IMAP0_REGNUM - && nr < TS2_IMAP0_REGNUM + NR_IMAP_REGS) - return nr - TS2_IMAP0_REGNUM + SIM_D10V_IMAP0_REGNUM; - if (nr == TS2_DMAP_REGNUM) - return nr - TS2_DMAP_REGNUM + SIM_D10V_TS2_DMAP_REGNUM; - if (nr >= TS2_A0_REGNUM - && nr < TS2_A0_REGNUM + NR_A_REGS) - return nr - TS2_A0_REGNUM + SIM_D10V_A0_REGNUM; - return nr; -} - -static int -d10v_ts3_register_sim_regno (int nr) -{ - if (nr >= TS3_IMAP0_REGNUM - && nr < TS3_IMAP0_REGNUM + NR_IMAP_REGS) - return nr - TS3_IMAP0_REGNUM + SIM_D10V_IMAP0_REGNUM; - if (nr >= TS3_DMAP0_REGNUM - && nr < TS3_DMAP0_REGNUM + TS3_NR_DMAP_REGS) - return nr - TS3_DMAP0_REGNUM + SIM_D10V_DMAP0_REGNUM; - if (nr >= TS3_A0_REGNUM - && nr < TS3_A0_REGNUM + NR_A_REGS) - return nr - TS3_A0_REGNUM + SIM_D10V_A0_REGNUM; - return nr; -} - -/* Index within `registers' of the first byte of the space for - register REG_NR. */ - -static int -d10v_register_byte (int reg_nr) -{ - if (reg_nr < A0_REGNUM) - return (reg_nr * 2); - else if (reg_nr < (A0_REGNUM + NR_A_REGS)) - return (A0_REGNUM * 2 - + (reg_nr - A0_REGNUM) * 8); - else - return (A0_REGNUM * 2 - + NR_A_REGS * 8 - + (reg_nr - A0_REGNUM - NR_A_REGS) * 2); -} - -/* Number of bytes of storage in the actual machine representation for - register REG_NR. */ - -static int -d10v_register_raw_size (int reg_nr) -{ - if (reg_nr < A0_REGNUM) - return 2; - else if (reg_nr < (A0_REGNUM + NR_A_REGS)) - return 8; - else - return 2; -} - -/* Return the GDB type object for the "standard" data type - of data in register N. */ - -static struct type * -d10v_register_virtual_type (int reg_nr) -{ - if (reg_nr == PC_REGNUM) - return builtin_type_void_func_ptr; - else if (reg_nr >= A0_REGNUM - && reg_nr < (A0_REGNUM + NR_A_REGS)) - return builtin_type_int64; - else - return builtin_type_int16; -} - -static CORE_ADDR -d10v_make_daddr (CORE_ADDR x) -{ - return ((x) | DMEM_START); -} - -static CORE_ADDR -d10v_make_iaddr (CORE_ADDR x) -{ - return (((x) << 2) | IMEM_START); -} - -static int -d10v_daddr_p (CORE_ADDR x) -{ - return (((x) & 0x3000000) == DMEM_START); -} - -static int -d10v_iaddr_p (CORE_ADDR x) -{ - return (((x) & 0x3000000) == IMEM_START); -} - - -static CORE_ADDR -d10v_convert_iaddr_to_raw (CORE_ADDR x) -{ - return (((x) >> 2) & 0xffff); -} - -static CORE_ADDR -d10v_convert_daddr_to_raw (CORE_ADDR x) -{ - return ((x) & 0xffff); -} - -static void -d10v_address_to_pointer (struct type *type, void *buf, CORE_ADDR addr) -{ - /* Is it a code address? */ - if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC - || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_METHOD) - { - store_unsigned_integer (buf, TYPE_LENGTH (type), - d10v_convert_iaddr_to_raw (addr)); - } - else - { - /* Strip off any upper segment bits. */ - store_unsigned_integer (buf, TYPE_LENGTH (type), - d10v_convert_daddr_to_raw (addr)); - } -} - -static CORE_ADDR -d10v_pointer_to_address (struct type *type, void *buf) -{ - CORE_ADDR addr = extract_address (buf, TYPE_LENGTH (type)); - - /* Is it a code address? */ - if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC - || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_METHOD - || TYPE_CODE_SPACE (TYPE_TARGET_TYPE (type))) - return d10v_make_iaddr (addr); - else - return d10v_make_daddr (addr); -} - -static CORE_ADDR -d10v_integer_to_address (struct type *type, void *buf) -{ - LONGEST val; - val = unpack_long (type, buf); - if (TYPE_CODE (type) == TYPE_CODE_INT - && TYPE_LENGTH (type) <= TYPE_LENGTH (builtin_type_void_data_ptr)) - /* Convert small integers that would would be directly copied into - a pointer variable into an address pointing into data space. */ - return d10v_make_daddr (val & 0xffff); - else - /* The value is too large to fit in a pointer. Assume this was - intentional and that the user in fact specified a raw address. */ - return val; -} - -/* Store the address of the place in which to copy the structure the - subroutine will return. This is called from call_function. - - We store structs through a pointer passed in the first Argument - register. */ - -static void -d10v_store_struct_return (CORE_ADDR addr, CORE_ADDR sp) -{ - write_register (ARG1_REGNUM, (addr)); -} - -/* Write into appropriate registers a function return value - of type TYPE, given in virtual format. - - Things always get returned in RET1_REGNUM, RET2_REGNUM, ... */ - -static void -d10v_store_return_value (struct type *type, char *valbuf) -{ - write_register_bytes (REGISTER_BYTE (RET1_REGNUM), - 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). */ - -static CORE_ADDR -d10v_extract_struct_value_address (char *regbuf) -{ - return (extract_address ((regbuf) + REGISTER_BYTE (ARG1_REGNUM), - REGISTER_RAW_SIZE (ARG1_REGNUM)) - | DMEM_START); -} - -static CORE_ADDR -d10v_frame_saved_pc (struct frame_info *frame) -{ - return ((frame)->extra_info->return_pc); -} - -/* Immediately after a function call, return the saved pc. We can't - use frame->return_pc beause that is determined by reading R13 off - the stack and that may not be written yet. */ - -static CORE_ADDR -d10v_saved_pc_after_call (struct frame_info *frame) -{ - return ((read_register (LR_REGNUM) << 2) - | IMEM_START); -} - -/* Discard from the stack the innermost frame, restoring all saved - registers. */ - -static void -d10v_pop_frame (void) -{ - generic_pop_current_frame (do_d10v_pop_frame); -} - -static void -do_d10v_pop_frame (struct frame_info *fi) -{ - CORE_ADDR fp; - int regnum; - char raw_buffer[8]; - - fp = FRAME_FP (fi); - /* fill out fsr with the address of where each */ - /* register was stored in the frame */ - d10v_frame_init_saved_regs (fi); - - /* now update the current registers with the old values */ - for (regnum = A0_REGNUM; regnum < A0_REGNUM + NR_A_REGS; regnum++) - { - if (fi->saved_regs[regnum]) - { - read_memory (fi->saved_regs[regnum], raw_buffer, REGISTER_RAW_SIZE (regnum)); - write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, REGISTER_RAW_SIZE (regnum)); - } - } - for (regnum = 0; regnum < SP_REGNUM; regnum++) - { - if (fi->saved_regs[regnum]) - { - write_register (regnum, read_memory_unsigned_integer (fi->saved_regs[regnum], REGISTER_RAW_SIZE (regnum))); - } - } - if (fi->saved_regs[PSW_REGNUM]) - { - write_register (PSW_REGNUM, read_memory_unsigned_integer (fi->saved_regs[PSW_REGNUM], REGISTER_RAW_SIZE (PSW_REGNUM))); - } - - write_register (PC_REGNUM, read_register (LR_REGNUM)); - write_register (SP_REGNUM, fp + fi->extra_info->size); - target_store_registers (-1); - flush_cached_frames (); -} - -static int -check_prologue (unsigned short op) -{ - /* st rn, @-sp */ - if ((op & 0x7E1F) == 0x6C1F) - return 1; - - /* st2w rn, @-sp */ - if ((op & 0x7E3F) == 0x6E1F) - return 1; - - /* subi sp, n */ - if ((op & 0x7FE1) == 0x01E1) - return 1; - - /* mv r11, sp */ - if (op == 0x417E) - return 1; - - /* nop */ - if (op == 0x5E00) - return 1; - - /* st rn, @sp */ - if ((op & 0x7E1F) == 0x681E) - return 1; - - /* st2w rn, @sp */ - if ((op & 0x7E3F) == 0x3A1E) - return 1; - - return 0; -} - -static CORE_ADDR -d10v_skip_prologue (CORE_ADDR pc) -{ - unsigned long op; - unsigned short op1, op2; - CORE_ADDR func_addr, func_end; - struct symtab_and_line sal; - - /* If we have line debugging information, then the end of the */ - /* prologue should the first assembly instruction of the first source line */ - if (find_pc_partial_function (pc, NULL, &func_addr, &func_end)) - { - sal = find_pc_line (func_addr, 0); - if (sal.end && sal.end < func_end) - return sal.end; - } - - if (target_read_memory (pc, (char *) &op, 4)) - return pc; /* Can't access it -- assume no prologue. */ - - while (1) - { - op = (unsigned long) read_memory_integer (pc, 4); - if ((op & 0xC0000000) == 0xC0000000) - { - /* long instruction */ - if (((op & 0x3FFF0000) != 0x01FF0000) && /* add3 sp,sp,n */ - ((op & 0x3F0F0000) != 0x340F0000) && /* st rn, @(offset,sp) */ - ((op & 0x3F1F0000) != 0x350F0000)) /* st2w rn, @(offset,sp) */ - break; - } - else - { - /* short instructions */ - if ((op & 0xC0000000) == 0x80000000) - { - op2 = (op & 0x3FFF8000) >> 15; - op1 = op & 0x7FFF; - } - else - { - op1 = (op & 0x3FFF8000) >> 15; - op2 = op & 0x7FFF; - } - if (check_prologue (op1)) - { - if (!check_prologue (op2)) - { - /* if the previous opcode was really part of the prologue */ - /* and not just a NOP, then we want to break after both instructions */ - if (op1 != 0x5E00) - pc += 4; - break; - } - } - else - break; - } - pc += 4; - } - return pc; -} - -/* Given a GDB frame, determine the address of the calling function's frame. - This will be used to create a new GDB frame struct, and then - INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame. - */ - -static CORE_ADDR -d10v_frame_chain (struct frame_info *fi) -{ - d10v_frame_init_saved_regs (fi); - - if (fi->extra_info->return_pc == IMEM_START - || inside_entry_file (fi->extra_info->return_pc)) - return (CORE_ADDR) 0; - - if (!fi->saved_regs[FP_REGNUM]) - { - if (!fi->saved_regs[SP_REGNUM] - || fi->saved_regs[SP_REGNUM] == STACK_START) - return (CORE_ADDR) 0; - - return fi->saved_regs[SP_REGNUM]; - } - - if (!read_memory_unsigned_integer (fi->saved_regs[FP_REGNUM], - REGISTER_RAW_SIZE (FP_REGNUM))) - return (CORE_ADDR) 0; - - return d10v_make_daddr (read_memory_unsigned_integer (fi->saved_regs[FP_REGNUM], - REGISTER_RAW_SIZE (FP_REGNUM))); -} - -static int next_addr, uses_frame; - -static int -prologue_find_regs (unsigned short op, struct frame_info *fi, CORE_ADDR addr) -{ - int n; - - /* st rn, @-sp */ - if ((op & 0x7E1F) == 0x6C1F) - { - n = (op & 0x1E0) >> 5; - next_addr -= 2; - fi->saved_regs[n] = next_addr; - return 1; - } - - /* st2w rn, @-sp */ - else if ((op & 0x7E3F) == 0x6E1F) - { - n = (op & 0x1E0) >> 5; - next_addr -= 4; - fi->saved_regs[n] = next_addr; - fi->saved_regs[n + 1] = next_addr + 2; - return 1; - } - - /* subi sp, n */ - if ((op & 0x7FE1) == 0x01E1) - { - n = (op & 0x1E) >> 1; - if (n == 0) - n = 16; - next_addr -= n; - return 1; - } - - /* mv r11, sp */ - if (op == 0x417E) - { - uses_frame = 1; - return 1; - } - - /* nop */ - if (op == 0x5E00) - return 1; - - /* st rn, @sp */ - if ((op & 0x7E1F) == 0x681E) - { - n = (op & 0x1E0) >> 5; - fi->saved_regs[n] = next_addr; - return 1; - } - - /* st2w rn, @sp */ - if ((op & 0x7E3F) == 0x3A1E) - { - n = (op & 0x1E0) >> 5; - fi->saved_regs[n] = next_addr; - fi->saved_regs[n + 1] = next_addr + 2; - return 1; - } - - return 0; -} - -/* Put here the code to store, into fi->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. */ - -static void -d10v_frame_init_saved_regs (struct frame_info *fi) -{ - CORE_ADDR fp, pc; - unsigned long op; - unsigned short op1, op2; - int i; - - fp = fi->frame; - memset (fi->saved_regs, 0, SIZEOF_FRAME_SAVED_REGS); - next_addr = 0; - - pc = get_pc_function_start (fi->pc); - - uses_frame = 0; - while (1) - { - op = (unsigned long) read_memory_integer (pc, 4); - if ((op & 0xC0000000) == 0xC0000000) - { - /* long instruction */ - if ((op & 0x3FFF0000) == 0x01FF0000) - { - /* add3 sp,sp,n */ - short n = op & 0xFFFF; - next_addr += n; - } - else if ((op & 0x3F0F0000) == 0x340F0000) - { - /* st rn, @(offset,sp) */ - short offset = op & 0xFFFF; - short n = (op >> 20) & 0xF; - fi->saved_regs[n] = next_addr + offset; - } - else if ((op & 0x3F1F0000) == 0x350F0000) - { - /* st2w rn, @(offset,sp) */ - short offset = op & 0xFFFF; - short n = (op >> 20) & 0xF; - fi->saved_regs[n] = next_addr + offset; - fi->saved_regs[n + 1] = next_addr + offset + 2; - } - else - break; - } - else - { - /* short instructions */ - if ((op & 0xC0000000) == 0x80000000) - { - op2 = (op & 0x3FFF8000) >> 15; - op1 = op & 0x7FFF; - } - else - { - op1 = (op & 0x3FFF8000) >> 15; - op2 = op & 0x7FFF; - } - if (!prologue_find_regs (op1, fi, pc) || !prologue_find_regs (op2, fi, pc)) - break; - } - pc += 4; - } - - fi->extra_info->size = -next_addr; - - if (!(fp & 0xffff)) - fp = d10v_make_daddr (read_register (SP_REGNUM)); - - for (i = 0; i < NUM_REGS - 1; i++) - if (fi->saved_regs[i]) - { - fi->saved_regs[i] = fp - (next_addr - fi->saved_regs[i]); - } - - if (fi->saved_regs[LR_REGNUM]) - { - CORE_ADDR return_pc = read_memory_unsigned_integer (fi->saved_regs[LR_REGNUM], REGISTER_RAW_SIZE (LR_REGNUM)); - fi->extra_info->return_pc = d10v_make_iaddr (return_pc); - } - else - { - fi->extra_info->return_pc = d10v_make_iaddr (read_register (LR_REGNUM)); - } - - /* th SP is not normally (ever?) saved, but check anyway */ - if (!fi->saved_regs[SP_REGNUM]) - { - /* if the FP was saved, that means the current FP is valid, */ - /* otherwise, it isn't being used, so we use the SP instead */ - if (uses_frame) - fi->saved_regs[SP_REGNUM] = read_register (FP_REGNUM) + fi->extra_info->size; - else - { - fi->saved_regs[SP_REGNUM] = fp + fi->extra_info->size; - fi->extra_info->frameless = 1; - fi->saved_regs[FP_REGNUM] = 0; - } - } -} - -static void -d10v_init_extra_frame_info (int fromleaf, struct frame_info *fi) -{ - fi->extra_info = (struct frame_extra_info *) - frame_obstack_alloc (sizeof (struct frame_extra_info)); - frame_saved_regs_zalloc (fi); - - fi->extra_info->frameless = 0; - fi->extra_info->size = 0; - fi->extra_info->return_pc = 0; - - /* The call dummy doesn't save any registers on the stack, so we can - return now. */ - if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame)) - { - return; - } - else - { - d10v_frame_init_saved_regs (fi); - } -} - -static void -show_regs (char *args, int from_tty) -{ - int a; - printf_filtered ("PC=%04lx (0x%lx) PSW=%04lx RPT_S=%04lx RPT_E=%04lx RPT_C=%04lx\n", - (long) read_register (PC_REGNUM), - (long) d10v_make_iaddr (read_register (PC_REGNUM)), - (long) read_register (PSW_REGNUM), - (long) read_register (24), - (long) read_register (25), - (long) read_register (23)); - printf_filtered ("R0-R7 %04lx %04lx %04lx %04lx %04lx %04lx %04lx %04lx\n", - (long) read_register (0), - (long) read_register (1), - (long) read_register (2), - (long) read_register (3), - (long) read_register (4), - (long) read_register (5), - (long) read_register (6), - (long) read_register (7)); - printf_filtered ("R8-R15 %04lx %04lx %04lx %04lx %04lx %04lx %04lx %04lx\n", - (long) read_register (8), - (long) read_register (9), - (long) read_register (10), - (long) read_register (11), - (long) read_register (12), - (long) read_register (13), - (long) read_register (14), - (long) read_register (15)); - for (a = 0; a < NR_IMAP_REGS; a++) - { - if (a > 0) - printf_filtered (" "); - printf_filtered ("IMAP%d %04lx", a, d10v_imap_register (a)); - } - if (NR_DMAP_REGS == 1) - printf_filtered (" DMAP %04lx\n", d10v_dmap_register (2)); - else - { - for (a = 0; a < NR_DMAP_REGS; a++) - { - printf_filtered (" DMAP%d %04lx", a, d10v_dmap_register (a)); - } - printf_filtered ("\n"); - } - printf_filtered ("A0-A%d", NR_A_REGS - 1); - for (a = A0_REGNUM; a < A0_REGNUM + NR_A_REGS; a++) - { - char num[MAX_REGISTER_RAW_SIZE]; - int i; - printf_filtered (" "); - read_register_gen (a, (char *) &num); - for (i = 0; i < MAX_REGISTER_RAW_SIZE; i++) - { - printf_filtered ("%02x", (num[i] & 0xff)); - } - } - printf_filtered ("\n"); -} - -static CORE_ADDR -d10v_read_pc (ptid_t ptid) -{ - ptid_t save_ptid; - CORE_ADDR pc; - CORE_ADDR retval; - - save_ptid = inferior_ptid; - inferior_ptid = ptid; - pc = (int) read_register (PC_REGNUM); - inferior_ptid = save_ptid; - retval = d10v_make_iaddr (pc); - return retval; -} - -static void -d10v_write_pc (CORE_ADDR val, ptid_t ptid) -{ - ptid_t save_ptid; - - save_ptid = inferior_ptid; - inferior_ptid = ptid; - write_register (PC_REGNUM, d10v_convert_iaddr_to_raw (val)); - inferior_ptid = save_ptid; -} - -static CORE_ADDR -d10v_read_sp (void) -{ - return (d10v_make_daddr (read_register (SP_REGNUM))); -} - -static void -d10v_write_sp (CORE_ADDR val) -{ - write_register (SP_REGNUM, d10v_convert_daddr_to_raw (val)); -} - -static void -d10v_write_fp (CORE_ADDR val) -{ - write_register (FP_REGNUM, d10v_convert_daddr_to_raw (val)); -} - -static CORE_ADDR -d10v_read_fp (void) -{ - return (d10v_make_daddr (read_register (FP_REGNUM))); -} - -/* Function: push_return_address (pc) - Set up the return address for the inferior function call. - Needed for targets where we don't actually execute a JSR/BSR instruction */ - -static CORE_ADDR -d10v_push_return_address (CORE_ADDR pc, CORE_ADDR sp) -{ - write_register (LR_REGNUM, d10v_convert_iaddr_to_raw (CALL_DUMMY_ADDRESS ())); - return sp; -} - - -/* When arguments must be pushed onto the stack, they go on in reverse - order. The below implements a FILO (stack) to do this. */ - -struct stack_item -{ - int len; - struct stack_item *prev; - void *data; -}; - -static struct stack_item *push_stack_item (struct stack_item *prev, - void *contents, int len); -static struct stack_item * -push_stack_item (struct stack_item *prev, void *contents, int len) -{ - struct stack_item *si; - si = xmalloc (sizeof (struct stack_item)); - si->data = xmalloc (len); - si->len = len; - si->prev = prev; - memcpy (si->data, contents, len); - return si; -} - -static struct stack_item *pop_stack_item (struct stack_item *si); -static struct stack_item * -pop_stack_item (struct stack_item *si) -{ - struct stack_item *dead = si; - si = si->prev; - xfree (dead->data); - xfree (dead); - return si; -} - - -static CORE_ADDR -d10v_push_arguments (int nargs, struct value **args, CORE_ADDR sp, - int struct_return, CORE_ADDR struct_addr) -{ - int i; - int regnum = ARG1_REGNUM; - struct stack_item *si = NULL; - - /* Fill in registers and arg lists */ - for (i = 0; i < nargs; i++) - { - struct value *arg = args[i]; - struct type *type = check_typedef (VALUE_TYPE (arg)); - char *contents = VALUE_CONTENTS (arg); - int len = TYPE_LENGTH (type); - /* printf ("push: type=%d len=%d\n", type->code, len); */ - { - int aligned_regnum = (regnum + 1) & ~1; - if (len <= 2 && regnum <= ARGN_REGNUM) - /* fits in a single register, do not align */ - { - long val = extract_unsigned_integer (contents, len); - write_register (regnum++, val); - } - else if (len <= (ARGN_REGNUM - aligned_regnum + 1) * 2) - /* value fits in remaining registers, store keeping left - aligned */ - { - int b; - regnum = aligned_regnum; - for (b = 0; b < (len & ~1); b += 2) - { - long val = extract_unsigned_integer (&contents[b], 2); - write_register (regnum++, val); - } - if (b < len) - { - long val = extract_unsigned_integer (&contents[b], 1); - write_register (regnum++, (val << 8)); - } - } - else - { - /* arg will go onto stack */ - regnum = ARGN_REGNUM + 1; - si = push_stack_item (si, contents, len); - } - } - } - - while (si) - { - sp = (sp - si->len) & ~1; - write_memory (sp, si->data, si->len); - si = pop_stack_item (si); - } - - return sp; -} - - -/* Given a return value in `regbuf' with a type `valtype', - extract and copy its value into `valbuf'. */ - -static void -d10v_extract_return_value (struct type *type, char regbuf[REGISTER_BYTES], - char *valbuf) -{ - int len; - /* printf("RET: TYPE=%d len=%d r%d=0x%x\n",type->code, TYPE_LENGTH (type), RET1_REGNUM - R0_REGNUM, (int) extract_unsigned_integer (regbuf + REGISTER_BYTE(RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM))); */ - { - len = TYPE_LENGTH (type); - if (len == 1) - { - unsigned short c = extract_unsigned_integer (regbuf + REGISTER_BYTE (RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM)); - store_unsigned_integer (valbuf, 1, c); - } - else if ((len & 1) == 0) - memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM), len); - else - { - /* For return values of odd size, the first byte is in the - least significant part of the first register. The - remaining bytes in remaining registers. Interestingly, - when such values are passed in, the last byte is in the - most significant byte of that same register - wierd. */ - memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM) + 1, len); - } - } -} - -/* Translate a GDB virtual ADDR/LEN into a format the remote target - understands. Returns number of bytes that can be transfered - starting at TARG_ADDR. Return ZERO if no bytes can be transfered - (segmentation fault). Since the simulator knows all about how the - VM system works, we just call that to do the translation. */ - -static void -remote_d10v_translate_xfer_address (CORE_ADDR memaddr, int nr_bytes, - CORE_ADDR *targ_addr, int *targ_len) -{ - long out_addr; - long out_len; - out_len = sim_d10v_translate_addr (memaddr, nr_bytes, - &out_addr, - d10v_dmap_register, - d10v_imap_register); - *targ_addr = out_addr; - *targ_len = out_len; -} - - -/* The following code implements access to, and display of, the D10V's - instruction trace buffer. The buffer consists of 64K or more - 4-byte words of data, of which each words includes an 8-bit count, - an 8-bit segment number, and a 16-bit instruction address. - - In theory, the trace buffer is continuously capturing instruction - data that the CPU presents on its "debug bus", but in practice, the - ROMified GDB stub only enables tracing when it continues or steps - the program, and stops tracing when the program stops; so it - actually works for GDB to read the buffer counter out of memory and - then read each trace word. The counter records where the tracing - stops, but there is no record of where it started, so we remember - the PC when we resumed and then search backwards in the trace - buffer for a word that includes that address. This is not perfect, - because you will miss trace data if the resumption PC is the target - of a branch. (The value of the buffer counter is semi-random, any - trace data from a previous program stop is gone.) */ - -/* The address of the last word recorded in the trace buffer. */ - -#define DBBC_ADDR (0xd80000) - -/* The base of the trace buffer, at least for the "Board_0". */ - -#define TRACE_BUFFER_BASE (0xf40000) - -static void trace_command (char *, int); - -static void untrace_command (char *, int); - -static void trace_info (char *, int); - -static void tdisassemble_command (char *, int); - -static void display_trace (int, int); - -/* True when instruction traces are being collected. */ - -static int tracing; - -/* Remembered PC. */ - -static CORE_ADDR last_pc; - -/* True when trace output should be displayed whenever program stops. */ - -static int trace_display; - -/* True when trace listing should include source lines. */ - -static int default_trace_show_source = 1; - -struct trace_buffer - { - int size; - short *counts; - CORE_ADDR *addrs; - } -trace_data; - -static void -trace_command (char *args, int from_tty) -{ - /* Clear the host-side trace buffer, allocating space if needed. */ - trace_data.size = 0; - if (trace_data.counts == NULL) - trace_data.counts = (short *) xmalloc (65536 * sizeof (short)); - if (trace_data.addrs == NULL) - trace_data.addrs = (CORE_ADDR *) xmalloc (65536 * sizeof (CORE_ADDR)); - - tracing = 1; - - printf_filtered ("Tracing is now on.\n"); -} - -static void -untrace_command (char *args, int from_tty) -{ - tracing = 0; - - printf_filtered ("Tracing is now off.\n"); -} - -static void -trace_info (char *args, int from_tty) -{ - int i; - - if (trace_data.size) - { - printf_filtered ("%d entries in trace buffer:\n", trace_data.size); - - for (i = 0; i < trace_data.size; ++i) - { - printf_filtered ("%d: %d instruction%s at 0x%s\n", - i, - trace_data.counts[i], - (trace_data.counts[i] == 1 ? "" : "s"), - paddr_nz (trace_data.addrs[i])); - } - } - else - printf_filtered ("No entries in trace buffer.\n"); - - printf_filtered ("Tracing is currently %s.\n", (tracing ? "on" : "off")); -} - -/* Print the instruction at address MEMADDR in debugged memory, - on STREAM. Returns length of the instruction, in bytes. */ - -static int -print_insn (CORE_ADDR memaddr, struct ui_file *stream) -{ - /* If there's no disassembler, something is very wrong. */ - if (tm_print_insn == NULL) - internal_error (__FILE__, __LINE__, - "print_insn: no disassembler"); - - if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) - tm_print_insn_info.endian = BFD_ENDIAN_BIG; - else - tm_print_insn_info.endian = BFD_ENDIAN_LITTLE; - return TARGET_PRINT_INSN (memaddr, &tm_print_insn_info); -} - -static void -d10v_eva_prepare_to_trace (void) -{ - if (!tracing) - return; - - last_pc = read_register (PC_REGNUM); -} - -/* Collect trace data from the target board and format it into a form - more useful for display. */ - -static void -d10v_eva_get_trace_data (void) -{ - int count, i, j, oldsize; - int trace_addr, trace_seg, trace_cnt, next_cnt; - unsigned int last_trace, trace_word, next_word; - unsigned int *tmpspace; - - if (!tracing) - return; - - tmpspace = xmalloc (65536 * sizeof (unsigned int)); - - last_trace = read_memory_unsigned_integer (DBBC_ADDR, 2) << 2; - - /* Collect buffer contents from the target, stopping when we reach - the word recorded when execution resumed. */ - - count = 0; - while (last_trace > 0) - { - QUIT; - trace_word = - read_memory_unsigned_integer (TRACE_BUFFER_BASE + last_trace, 4); - trace_addr = trace_word & 0xffff; - last_trace -= 4; - /* Ignore an apparently nonsensical entry. */ - if (trace_addr == 0xffd5) - continue; - tmpspace[count++] = trace_word; - if (trace_addr == last_pc) - break; - if (count > 65535) - break; - } - - /* Move the data to the host-side trace buffer, adjusting counts to - include the last instruction executed and transforming the address - into something that GDB likes. */ - - for (i = 0; i < count; ++i) - { - trace_word = tmpspace[i]; - next_word = ((i == 0) ? 0 : tmpspace[i - 1]); - trace_addr = trace_word & 0xffff; - next_cnt = (next_word >> 24) & 0xff; - j = trace_data.size + count - i - 1; - trace_data.addrs[j] = (trace_addr << 2) + 0x1000000; - trace_data.counts[j] = next_cnt + 1; - } - - oldsize = trace_data.size; - trace_data.size += count; - - xfree (tmpspace); - - if (trace_display) - display_trace (oldsize, trace_data.size); -} - -static void -tdisassemble_command (char *arg, int from_tty) -{ - int i, count; - CORE_ADDR low, high; - char *space_index; - - if (!arg) - { - low = 0; - high = trace_data.size; - } - else if (!(space_index = (char *) strchr (arg, ' '))) - { - low = parse_and_eval_address (arg); - high = low + 5; - } - else - { - /* Two arguments. */ - *space_index = '\0'; - low = parse_and_eval_address (arg); - high = parse_and_eval_address (space_index + 1); - if (high < low) - high = low; - } - - printf_filtered ("Dump of trace from %s to %s:\n", paddr_u (low), paddr_u (high)); - - display_trace (low, high); - - printf_filtered ("End of trace dump.\n"); - gdb_flush (gdb_stdout); -} - -static void -display_trace (int low, int high) -{ - int i, count, trace_show_source, first, suppress; - CORE_ADDR next_address; - - trace_show_source = default_trace_show_source; - if (!have_full_symbols () && !have_partial_symbols ()) - { - trace_show_source = 0; - printf_filtered ("No symbol table is loaded. Use the \"file\" command.\n"); - printf_filtered ("Trace will not display any source.\n"); - } - - first = 1; - suppress = 0; - for (i = low; i < high; ++i) - { - next_address = trace_data.addrs[i]; - count = trace_data.counts[i]; - while (count-- > 0) - { - QUIT; - if (trace_show_source) - { - struct symtab_and_line sal, sal_prev; - - sal_prev = find_pc_line (next_address - 4, 0); - sal = find_pc_line (next_address, 0); - - if (sal.symtab) - { - if (first || sal.line != sal_prev.line) - print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); - suppress = 0; - } - else - { - if (!suppress) - /* FIXME-32x64--assumes sal.pc fits in long. */ - printf_filtered ("No source file for address %s.\n", - local_hex_string ((unsigned long) sal.pc)); - suppress = 1; - } - } - first = 0; - print_address (next_address, gdb_stdout); - printf_filtered (":"); - printf_filtered ("\t"); - wrap_here (" "); - next_address = next_address + print_insn (next_address, gdb_stdout); - printf_filtered ("\n"); - gdb_flush (gdb_stdout); - } - } -} - - -static gdbarch_init_ftype d10v_gdbarch_init; - -static struct gdbarch * -d10v_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) -{ - static LONGEST d10v_call_dummy_words[] = - {0}; - struct gdbarch *gdbarch; - int d10v_num_regs; - struct gdbarch_tdep *tdep; - gdbarch_register_name_ftype *d10v_register_name; - gdbarch_register_sim_regno_ftype *d10v_register_sim_regno; - - /* Find a candidate among the list of pre-declared architectures. */ - arches = gdbarch_list_lookup_by_info (arches, &info); - if (arches != NULL) - return arches->gdbarch; - - /* None found, create a new architecture from the information - provided. */ - tdep = XMALLOC (struct gdbarch_tdep); - gdbarch = gdbarch_alloc (&info, tdep); - - switch (info.bfd_arch_info->mach) - { - case bfd_mach_d10v_ts2: - d10v_num_regs = 37; - d10v_register_name = d10v_ts2_register_name; - d10v_register_sim_regno = d10v_ts2_register_sim_regno; - tdep->a0_regnum = TS2_A0_REGNUM; - tdep->nr_dmap_regs = TS2_NR_DMAP_REGS; - tdep->dmap_register = d10v_ts2_dmap_register; - tdep->imap_register = d10v_ts2_imap_register; - break; - default: - case bfd_mach_d10v_ts3: - d10v_num_regs = 42; - d10v_register_name = d10v_ts3_register_name; - d10v_register_sim_regno = d10v_ts3_register_sim_regno; - tdep->a0_regnum = TS3_A0_REGNUM; - tdep->nr_dmap_regs = TS3_NR_DMAP_REGS; - tdep->dmap_register = d10v_ts3_dmap_register; - tdep->imap_register = d10v_ts3_imap_register; - break; - } - - set_gdbarch_read_pc (gdbarch, d10v_read_pc); - set_gdbarch_write_pc (gdbarch, d10v_write_pc); - set_gdbarch_read_fp (gdbarch, d10v_read_fp); - set_gdbarch_write_fp (gdbarch, d10v_write_fp); - set_gdbarch_read_sp (gdbarch, d10v_read_sp); - set_gdbarch_write_sp (gdbarch, d10v_write_sp); - - set_gdbarch_num_regs (gdbarch, d10v_num_regs); - set_gdbarch_sp_regnum (gdbarch, 15); - set_gdbarch_fp_regnum (gdbarch, 11); - set_gdbarch_pc_regnum (gdbarch, 18); - set_gdbarch_register_name (gdbarch, d10v_register_name); - set_gdbarch_register_size (gdbarch, 2); - set_gdbarch_register_bytes (gdbarch, (d10v_num_regs - 2) * 2 + 16); - set_gdbarch_register_byte (gdbarch, d10v_register_byte); - set_gdbarch_register_raw_size (gdbarch, d10v_register_raw_size); - set_gdbarch_max_register_raw_size (gdbarch, 8); - set_gdbarch_register_virtual_size (gdbarch, generic_register_virtual_size); - set_gdbarch_max_register_virtual_size (gdbarch, 8); - set_gdbarch_register_virtual_type (gdbarch, d10v_register_virtual_type); - - set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT); - set_gdbarch_addr_bit (gdbarch, 32); - set_gdbarch_address_to_pointer (gdbarch, d10v_address_to_pointer); - set_gdbarch_pointer_to_address (gdbarch, d10v_pointer_to_address); - set_gdbarch_integer_to_address (gdbarch, d10v_integer_to_address); - set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT); - set_gdbarch_int_bit (gdbarch, 2 * TARGET_CHAR_BIT); - set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT); - set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT); - /* NOTE: The d10v as a 32 bit ``float'' and ``double''. ``long - double'' is 64 bits. */ - set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT); - set_gdbarch_double_bit (gdbarch, 4 * TARGET_CHAR_BIT); - set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT); - switch (info.byte_order) - { - case BFD_ENDIAN_BIG: - set_gdbarch_float_format (gdbarch, &floatformat_ieee_single_big); - set_gdbarch_double_format (gdbarch, &floatformat_ieee_single_big); - set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_big); - break; - case BFD_ENDIAN_LITTLE: - set_gdbarch_float_format (gdbarch, &floatformat_ieee_single_little); - set_gdbarch_double_format (gdbarch, &floatformat_ieee_single_little); - set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_little); - break; - default: - internal_error (__FILE__, __LINE__, - "d10v_gdbarch_init: bad byte order for float format"); - } - - set_gdbarch_use_generic_dummy_frames (gdbarch, 1); - set_gdbarch_call_dummy_length (gdbarch, 0); - set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); - set_gdbarch_call_dummy_address (gdbarch, entry_point_address); - set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1); - set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0); - set_gdbarch_call_dummy_start_offset (gdbarch, 0); - set_gdbarch_pc_in_call_dummy (gdbarch, generic_pc_in_call_dummy); - set_gdbarch_call_dummy_words (gdbarch, d10v_call_dummy_words); - set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof (d10v_call_dummy_words)); - set_gdbarch_call_dummy_p (gdbarch, 1); - set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0); - set_gdbarch_get_saved_register (gdbarch, generic_get_saved_register); - set_gdbarch_fix_call_dummy (gdbarch, generic_fix_call_dummy); - - set_gdbarch_extract_return_value (gdbarch, d10v_extract_return_value); - set_gdbarch_push_arguments (gdbarch, d10v_push_arguments); - set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame); - set_gdbarch_push_return_address (gdbarch, d10v_push_return_address); - - set_gdbarch_store_struct_return (gdbarch, d10v_store_struct_return); - set_gdbarch_store_return_value (gdbarch, d10v_store_return_value); - set_gdbarch_extract_struct_value_address (gdbarch, d10v_extract_struct_value_address); - set_gdbarch_use_struct_convention (gdbarch, d10v_use_struct_convention); - - set_gdbarch_frame_init_saved_regs (gdbarch, d10v_frame_init_saved_regs); - set_gdbarch_init_extra_frame_info (gdbarch, d10v_init_extra_frame_info); - - set_gdbarch_pop_frame (gdbarch, d10v_pop_frame); - - set_gdbarch_skip_prologue (gdbarch, d10v_skip_prologue); - set_gdbarch_inner_than (gdbarch, core_addr_lessthan); - set_gdbarch_decr_pc_after_break (gdbarch, 4); - set_gdbarch_function_start_offset (gdbarch, 0); - set_gdbarch_breakpoint_from_pc (gdbarch, d10v_breakpoint_from_pc); - - set_gdbarch_remote_translate_xfer_address (gdbarch, remote_d10v_translate_xfer_address); - - set_gdbarch_frame_args_skip (gdbarch, 0); - set_gdbarch_frameless_function_invocation (gdbarch, frameless_look_for_prologue); - set_gdbarch_frame_chain (gdbarch, d10v_frame_chain); - set_gdbarch_frame_chain_valid (gdbarch, d10v_frame_chain_valid); - set_gdbarch_frame_saved_pc (gdbarch, d10v_frame_saved_pc); - set_gdbarch_frame_args_address (gdbarch, default_frame_address); - set_gdbarch_frame_locals_address (gdbarch, default_frame_address); - set_gdbarch_saved_pc_after_call (gdbarch, d10v_saved_pc_after_call); - set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown); - set_gdbarch_stack_align (gdbarch, d10v_stack_align); - - set_gdbarch_register_sim_regno (gdbarch, d10v_register_sim_regno); - set_gdbarch_extra_stack_alignment_needed (gdbarch, 0); - - return gdbarch; -} - - -extern void (*target_resume_hook) (void); -extern void (*target_wait_loop_hook) (void); - -void -_initialize_d10v_tdep (void) -{ - register_gdbarch_init (bfd_arch_d10v, d10v_gdbarch_init); - - tm_print_insn = print_insn_d10v; - - target_resume_hook = d10v_eva_prepare_to_trace; - target_wait_loop_hook = d10v_eva_get_trace_data; - - add_com ("regs", class_vars, show_regs, "Print all registers"); - - add_com ("itrace", class_support, trace_command, - "Enable tracing of instruction execution."); - - add_com ("iuntrace", class_support, untrace_command, - "Disable tracing of instruction execution."); - - add_com ("itdisassemble", class_vars, tdisassemble_command, - "Disassemble the trace buffer.\n\ -Two optional arguments specify a range of trace buffer entries\n\ -as reported by info trace (NOT addresses!)."); - - add_info ("itrace", trace_info, - "Display info about the trace data buffer."); - - add_show_from_set (add_set_cmd ("itracedisplay", no_class, - var_integer, (char *) &trace_display, - "Set automatic display of trace.\n", &setlist), - &showlist); - add_show_from_set (add_set_cmd ("itracesource", no_class, - var_integer, (char *) &default_trace_show_source, - "Set display of source code with trace.\n", &setlist), - &showlist); - -} |