+Tue Feb 29 18:47:58 2000 Andrew Cagney <cagney@b1.cygnus.com>
+
+ From 2000-02-23 Eli Zaretskii <eliz@is.elta.co.il>:
+ * config/i386/nm-go32.h (FLOAT_INFO): Remove macro definition.
+ (top level): Add prototypes for go32_* functions.
+ * config/i386/tm-go32.h (I386_DJGPP_TARGET): Define.
+ (FRAME_CHAIN, FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC):
+ Override definitions from tm-i386.h.
+ (REGISTER_VIRTUAL_TYPE): Remove macro definition.
+ * i386-tdep.c (i386_extract_return_value)
+ [I386_AIX_TARGET || I386_GNULINUX_TARGET]: Add I386_DJGPP_TARGET
+ to the list of targets which return FP values in FP registers.
+
+ * i386-tdep.c (i386_extract_return_value): Add FIXME recommending
+ that this function be re-implemented using multi-arch.
+
Tue Feb 29 18:40:08 2000 Andrew Cagney <cagney@b1.cygnus.com>
From 2000-02-23 Eli Zaretskii <eliz@is.elta.co.il>:
#define TARGET_REGION_OK_FOR_HW_WATCHPOINT(addr,len) \
go32_region_ok_for_watchpoint(addr,len)
+extern int go32_region_ok_for_watchpoint (CORE_ADDR, int);
/* After a watchpoint trap, the PC points to the instruction after the
one that caused the trap. Therefore we don't need to step over it.
#define target_stopped_data_address() \
go32_stopped_by_watchpoint (inferior_pid, 1)
+extern CORE_ADDR go32_stopped_by_watchpoint (int, int);
/* Use these macros for watchpoint insertion/removal. */
#define target_insert_watchpoint(addr, len, type) \
go32_insert_watchpoint (inferior_pid, addr, len, type)
+extern int go32_insert_watchpoint (int, CORE_ADDR, int, int);
#define target_remove_watchpoint(addr, len, type) \
go32_remove_watchpoint (inferior_pid, addr, len, type)
+extern int go32_remove_watchpoint (int, CORE_ADDR, int, int);
#define target_insert_hw_breakpoint(addr, shadow) \
go32_insert_hw_breakpoint(addr, shadow)
+extern int go32_insert_hw_breakpoint (CORE_ADDR, void *);
#define target_remove_hw_breakpoint(addr, shadow) \
go32_remove_hw_breakpoint(addr, shadow)
+extern int go32_remove_hw_breakpoint (CORE_ADDR, void *);
#define DECR_PC_AFTER_HW_BREAK 0
-
-#undef FLOAT_INFO
-#define FLOAT_INFO { i386_go32_float_info (); }
-
-extern void i386_go32_float_info (void);
/* Target-dependent definitions for Intel x86 running DJGPP.
- Copyright 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
This file is part of GDB.
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#ifndef TM_GO32_H
+#define TM_GO32_H
+
+#define I386_DJGPP_TARGET
#undef HAVE_SSE_REGS /* FIXME! go32-nat.c needs to support XMMi registers */
#define HAVE_I387_REGS
*((long double *)(TO)) = val; \
}
-/* Return the GDB type object for the "standard" data type of data in
- register N. Perhaps si and di should go here, but potentially they
- could be used for things other than address. */
+#undef TARGET_LONG_DOUBLE_BIT
+#define TARGET_LONG_DOUBLE_BIT 96
-#define REGISTER_VIRTUAL_TYPE(N) \
- (((N) == PC_REGNUM || (N) == FP_REGNUM || (N) == SP_REGNUM) \
- ? lookup_pointer_type (builtin_type_void) \
- : IS_FP_REGNUM(N) ? builtin_type_long_double \
- : IS_SSE_REGNUM(N) ? builtin_type_v4sf \
- : builtin_type_int)
+/* FRAME_CHAIN takes a frame's nominal address and produces the frame's
+ chain-pointer.
+ In the case of the i386, the frame's nominal address
+ is the address of a 4-byte word containing the calling frame's address.
+ DJGPP doesn't have any special frames for signal handlers, they are
+ just normal C functions. */
+#undef FRAME_CHAIN
+#define FRAME_CHAIN(thisframe) \
+ (!inside_entry_file ((thisframe)->pc) ? \
+ read_memory_integer ((thisframe)->frame, 4) :\
+ 0)
+
+/* A macro that tells us whether the function invocation represented
+ by FI does not have a frame on the stack associated with it. If it
+ does not, FRAMELESS is set to 1, else 0. */
+#undef FRAMELESS_FUNCTION_INVOCATION
+#define FRAMELESS_FUNCTION_INVOCATION(FI) \
+ (frameless_look_for_prologue(FI))
+
+#undef FRAME_SAVED_PC
+#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4))
#endif /* LD_I387 */
-
-#undef TARGET_LONG_DOUBLE_BIT
-#define TARGET_LONG_DOUBLE_BIT 96
+#endif /* TM_GO32_H */
#define DIRNAME_SEPARATOR ';'
#define HOST_I386
+typedef unsigned char fd_mask;
char regbuf[REGISTER_BYTES];
char *valbuf;
{
- /* On AIX and i386 GNU/Linux, floating point values are returned in
- floating point registers. */
-#if defined(I386_AIX_TARGET) || defined(I386_GNULINUX_TARGET)
+ /* On AIX, i386 GNU/Linux and DJGPP, floating point values are
+ returned in floating point registers. */
+ /* FIXME: cagney/2000-02-29: This function needs to be rewritten
+ using multi-arch. Please don't keep adding to this #ifdef
+ spaghetti. */
+#if defined(I386_AIX_TARGET) || defined(I386_GNULINUX_TARGET) || defined(I386_DJGPP_TARGET)
if (TYPE_CODE_FLT == TYPE_CODE (type))
{
double d;
store_floating (valbuf, TYPE_LENGTH (type), d);
}
else
-#endif /* I386_AIX_TARGET || I386_GNULINUX_TARGET*/
+#endif /* I386_AIX_TARGET || I386_GNULINUX_TARGET || I386_DJGPP_TARGET */
{
#if defined(LOW_RETURN_REGNUM)
int len = TYPE_LENGTH (type);
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