aboutsummaryrefslogtreecommitdiff
path: root/gdb/config/m68k/tm-isi.h
diff options
context:
space:
mode:
authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/config/m68k/tm-isi.h
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
downloadfsf-binutils-gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.zip
fsf-binutils-gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.gz
fsf-binutils-gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.bz2
Initial creation of sourceware repository
Diffstat (limited to 'gdb/config/m68k/tm-isi.h')
-rw-r--r--gdb/config/m68k/tm-isi.h150
1 files changed, 0 insertions, 150 deletions
diff --git a/gdb/config/m68k/tm-isi.h b/gdb/config/m68k/tm-isi.h
deleted file mode 100644
index f994524..0000000
--- a/gdb/config/m68k/tm-isi.h
+++ /dev/null
@@ -1,150 +0,0 @@
-/* Definitions to target GDB on an ISI Optimum V (3.05) under 4.3bsd.
- Copyright (C) 1987, 1989, 1991, 1993 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. */
-
-/* This has not been tested on ISI's running BSD 4.2, but it will probably
- work. */
-
-/* Data segment starts at etext rounded up to DATAROUND in {N,Z}MAGIC files */
-
-#define DATAROUND 0x20000
-#define N_DATADDR(hdr) (hdr.a_magic != OMAGIC ? \
- (hdr.a_text + DATAROUND) & ~(DATAROUND-1) : hdr.a_text)
-
-/* Text segment starts at sizeof (struct exec) in {N,Z}MAGIC files */
-
-#define N_TXTADDR(hdr) (hdr.a_magic != OMAGIC ? sizeof (struct exec) : 0)
-
-/* Amount PC must be decremented by after a breakpoint.
- This is often the number of bytes in BREAKPOINT
- but not always.
- On the ISI, the kernel resets the pc to the trap instr */
-
-#define DECR_PC_AFTER_BREAK 0
-
-
-/* Return number of args passed to a frame.
- Can return -1, meaning no way to tell. */
-
-#define FRAME_NUM_ARGS(val, fi) \
-{ register CORE_ADDR pc = FRAME_SAVED_PC (fi); \
- register int insn = 0177777 & read_memory_integer (pc, 2); \
- val = 0; \
- if (insn == 0047757 || insn == 0157374) /* lea W(sp),sp or addaw #W,sp */ \
- val = read_memory_integer (pc + 2, 2); \
- else if ((insn & 0170777) == 0050217 /* addql #N, sp */ \
- || (insn & 0170777) == 0050117) /* addqw */ \
- { val = (insn >> 9) & 7; if (val == 0) val = 8; } \
- else if (insn == 0157774) /* addal #WW, sp */ \
- val = read_memory_integer (pc + 2, 4); \
- val >>= 2; }
-
-/* Put here the code to store, into a struct frame_saved_regs,
- the addresses of the saved registers of frame described by FRAME_INFO.
- This includes special registers such as pc and fp saved in special
- ways in the stack frame. sp is even more special:
- the address we return for it IS the sp for the next frame. */
-
-#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
-{ register int regnum; \
- register int regmask; \
- register CORE_ADDR next_addr; \
- register CORE_ADDR pc; \
- register int insn; \
- register int offset; \
- memset (&frame_saved_regs, '\0', sizeof frame_saved_regs); \
- if ((frame_info)->pc >= (frame_info)->frame - CALL_DUMMY_LENGTH - FP_REGNUM*4 - 8*12 - 4 \
- && (frame_info)->pc <= (frame_info)->frame) \
- { next_addr = (frame_info)->frame; \
- pc = (frame_info)->frame - CALL_DUMMY_LENGTH - FP_REGNUM * 4 - 8*12 - 4; }\
- else \
- { pc = get_pc_function_start ((frame_info)->pc); \
- /* Verify we have a link a6 instruction next, \
- or a branch followed by a link a6 instruction; \
- if not we lose. If we win, find the address above the saved \
- regs using the amount of storage from the link instruction. */\
-retry: \
- insn = read_memory_integer (pc, 2); \
- if (insn == 044016) \
- next_addr = (frame_info)->frame - read_memory_integer (pc += 2, 4), pc+=4; \
- else if (insn == 047126) \
- next_addr = (frame_info)->frame - read_memory_integer (pc += 2, 2), pc+=2; \
- else if ((insn & 0177400) == 060000) /* bra insn */ \
- { offset = insn & 0377; \
- pc += 2; /* advance past bra */ \
- if (offset == 0) /* bra #word */ \
- offset = read_memory_integer (pc, 2), pc += 2; \
- else if (offset == 0377) /* bra #long */ \
- offset = read_memory_integer (pc, 4), pc += 4; \
- pc += offset; \
- goto retry; \
- } else goto lose; \
- /* If have an addal #-n, sp next, adjust next_addr. */ \
- if ((0177777 & read_memory_integer (pc, 2)) == 0157774) \
- next_addr += read_memory_integer (pc += 2, 4), pc += 4; \
- } \
- /* next should be a moveml to (sp) or -(sp) or a movl r,-(sp) */ \
- insn = read_memory_integer (pc, 2), pc += 2; \
- regmask = read_memory_integer (pc, 2); \
- if ((insn & 0177760) == 022700) /* movl rn, (sp) */ \
- (frame_saved_regs).regs[(insn&7) + ((insn&010)?8:0)] = next_addr; \
- else if ((insn & 0177760) == 024700) /* movl rn, -(sp) */ \
- (frame_saved_regs).regs[(insn&7) + ((insn&010)?8:0)] = next_addr-=4; \
- else if (insn == 0044327) /* moveml mask, (sp) */ \
- { pc += 2; \
- /* Regmask's low bit is for register 0, the first written */ \
- next_addr -= 4; \
- for (regnum = 0; regnum < 16; regnum++, regmask >>= 1) \
- if (regmask & 1) \
- (frame_saved_regs).regs[regnum] = (next_addr += 4); \
- } else if (insn == 0044347) /* moveml mask, -(sp) */ \
- { pc += 2; \
- /* Regmask's low bit is for register 15, the first pushed */ \
- for (regnum = 15; regnum >= 0; regnum--, regmask >>= 1) \
- if (regmask & 1) \
- (frame_saved_regs).regs[regnum] = (next_addr -= 4); } \
- /* clrw -(sp); movw ccr,-(sp) may follow. */ \
- if (read_memory_integer (pc, 2) == 041147 \
- && read_memory_integer (pc+2, 2) == 042347) \
- (frame_saved_regs).regs[PS_REGNUM] = (next_addr -= 4); \
- lose: ; \
- (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 8; \
- (frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \
- (frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame + 4; \
-}
-
-/* The only reason this is here is the tm-isi.h reference below. It
- was moved back here from tm-m68k.h. FIXME? */
-
-#define SKIP_PROLOGUE(pc) \
-{ register int op = read_memory_integer (pc, 2); \
- if (op == 0047126) \
- pc += 4; /* Skip link #word */ \
- else if (op == 0044016) \
- pc += 6; /* Skip link #long */ \
- /* Not sure why branches are here. */ \
- /* From tm-isi.h, tm-altos.h */ \
- else if (op == 0060000) \
- pc += 4; /* Skip bra #word */ \
- else if (op == 00600377) \
- pc += 6; /* skip bra #long */ \
- else if ((op & 0177400) == 0060000) \
- pc += 2; /* skip bra #char */ \
-}
-
-#include "m68k/tm-m68k.h"