-/* Definitions to make GDB run on a Sequent Symmetry under dynix 3.0,
+/* Target machine definitions for GDB on a Sequent Symmetry under dynix 3.0,
with Weitek 1167 and i387 support.
- Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
+ Symmetry version by Jay Vosburgh (uunet!sequent!fubar).
This file is part of GDB.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* Symmetry version by Jay Vosburgh (uunet!sequent!fubar) */
-
/* I don't know if this will work for cross-debugging, even if you do get
a copy of the right include file. */
#include <machine/reg.h>
#define NAMES_HAVE_UNDERSCORE
-/* Debugger information will be in DBX format. */
-
-#define READ_DBX_FORMAT
-
/* Offset from address of function to start of its code.
Zero on most machines. */
#define SKIP_PROLOGUE(frompc) {(frompc) = i386_skip_prologue((frompc));}
+extern int
+i386_skip_prologue PARAMS ((int));
+
/* 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
#define PC_REGNUM 16 /* Contains program counter */
#define PS_REGNUM 17 /* Contains processor status */
-/* The magic numbers below are offsets into u_ar0 in the user struct.
- * They live in <machine/reg.h>. Gdb calls this macro with blockend
- * holding u.u_ar0 - KERNEL_U_ADDR. Only the registers listed are
- * saved in the u area (along with a few others that aren't useful
- * here. See <machine/reg.h>).
- */
-
-#define REGISTER_U_ADDR(addr, blockend, regno) \
-{ struct user foo; /* needed for finding fpu regs */ \
-switch (regno) { \
- case 0: \
- addr = blockend + EAX * sizeof(int); break; \
- case 1: \
- addr = blockend + EDX * sizeof(int); break; \
- case 2: \
- addr = blockend + ECX * sizeof(int); break; \
- case 3: /* st(0) */ \
- addr = blockend - \
- ((int)&foo.u_fpusave.fpu_stack[0][0] - (int)&foo); \
- break; \
- case 4: /* st(1) */ \
- addr = blockend - \
- ((int) &foo.u_fpusave.fpu_stack[1][0] - (int)&foo); \
- break; \
- case 5: \
- addr = blockend + EBX * sizeof(int); break; \
- case 6: \
- addr = blockend + ESI * sizeof(int); break; \
- case 7: \
- addr = blockend + EDI * sizeof(int); break; \
- case 8: /* st(2) */ \
- addr = blockend - \
- ((int) &foo.u_fpusave.fpu_stack[2][0] - (int)&foo); \
- break; \
- case 9: /* st(3) */ \
- addr = blockend - \
- ((int) &foo.u_fpusave.fpu_stack[3][0] - (int)&foo); \
- break; \
- case 10: /* st(4) */ \
- addr = blockend - \
- ((int) &foo.u_fpusave.fpu_stack[4][0] - (int)&foo); \
- break; \
- case 11: /* st(5) */ \
- addr = blockend - \
- ((int) &foo.u_fpusave.fpu_stack[5][0] - (int)&foo); \
- break; \
- case 12: /* st(6) */ \
- addr = blockend - \
- ((int) &foo.u_fpusave.fpu_stack[6][0] - (int)&foo); \
- break; \
- case 13: /* st(7) */ \
- addr = blockend - \
- ((int) &foo.u_fpusave.fpu_stack[7][0] - (int)&foo); \
- break; \
- case 14: \
- addr = blockend + ESP * sizeof(int); break; \
- case 15: \
- addr = blockend + EBP * sizeof(int); break; \
- case 16: \
- addr = blockend + EIP * sizeof(int); break; \
- case 17: \
- addr = blockend + FLAGS * sizeof(int); break; \
- case 18: /* fp1 */ \
- case 19: /* fp2 */ \
- case 20: /* fp3 */ \
- case 21: /* fp4 */ \
- case 22: /* fp5 */ \
- case 23: /* fp6 */ \
- case 24: /* fp7 */ \
- case 25: /* fp8 */ \
- case 26: /* fp9 */ \
- case 27: /* fp10 */ \
- case 28: /* fp11 */ \
- case 29: /* fp12 */ \
- case 30: /* fp13 */ \
- case 31: /* fp14 */ \
- case 32: /* fp15 */ \
- case 33: /* fp16 */ \
- case 34: /* fp17 */ \
- case 35: /* fp18 */ \
- case 36: /* fp19 */ \
- case 37: /* fp20 */ \
- case 38: /* fp21 */ \
- case 39: /* fp22 */ \
- case 40: /* fp23 */ \
- case 41: /* fp24 */ \
- case 42: /* fp25 */ \
- case 43: /* fp26 */ \
- case 44: /* fp27 */ \
- case 45: /* fp28 */ \
- case 46: /* fp29 */ \
- case 47: /* fp30 */ \
- case 48: /* fp31 */ \
- addr = blockend - \
- ((int) &foo.u_fpasave.fpa_regs[(regno)-18] - (int)&foo); \
- } \
-}
-
/* Total amount of space needed to store our copies of the machine's
register state, the array `registers'. */
/* 10 i386 registers, 8 i387 registers, and 31 Weitek 1167 registers */
(REGNUM < 14) ? i387_to_double((FROM), (TO)) : \
bcopy ((FROM), (TO), 4))
+extern void
+i387_to_double PARAMS ((char *, char *));
+
/* Convert data from virtual format for register REGNUM
to raw format for register REGNUM. */
(REGNUM < 14) ? double_to_i387((FROM), (TO)) : \
bcopy ((FROM), (TO), 4))
+extern void
+double_to_i387 PARAMS ((char *, char *));
+
/* Return the GDB type object for the "standard" data type
of data in register N. */
/* FRAME_CHAIN takes a frame's nominal address
and produces the frame's chain-pointer.
- FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address
- and produces the nominal address of the caller frame.
-
However, if FRAME_CHAIN_VALID returns zero,
- it means the given frame is the outermost one and has no caller.
- In that case, FRAME_CHAIN_COMBINE is not used. */
+ it means the given frame is the outermost one and has no caller. */
/* On Symmetry, %ebp points to caller's %ebp, and the return address
- is right on top of that.
-*/
+ is right on top of that. */
#define FRAME_CHAIN(thisframe) \
- (outside_startup_file ((thisframe)->pc) ? \
+ (!inside_entry_file ((thisframe)->pc) ? \
read_memory_integer((thisframe)->frame, 4) :\
0)
#define FRAME_CHAIN_VALID(chain, thisframe) \
(chain != 0)
-#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
-
/* Define other aspects of the stack frame. */
/* A macro that tells us whether the function invocation represented
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
{ i386_frame_find_saved_regs ((frame_info), &(frame_saved_regs)); }
+#ifdef __STDC__ /* Forward decl's for prototypes */
+struct frame_info;
+struct frame_saved_regs;
+#endif
+
+extern void
+i386_frame_find_saved_regs PARAMS ((struct frame_info *,
+ struct frame_saved_regs *));
+
\f
/* Things needed for making the inferior call functions. */
delta = to - from; \
*(int *)((char *)(dummyname) + 1) = delta; \
}
+
+extern void
+print_387_control_word PARAMS ((unsigned int));
+
+extern void
+print_387_status_word PARAMS ((unsigned int));
projects / deliverable / binutils-gdb.git / blobdiff