From Eli. Bring go32 target up-to-date with recent GDB i386 changes.

3 files changed, 36 insertions, 18 deletions

diff --git a/gdb/config/i386/nm-go32.h b/gdb/config/i386/nm-go32.h
index 3a9d224..2258c84 100644
--- a/gdb/config/i386/nm-go32.h
+++ b/gdb/config/i386/nm-go32.h
@@ -48,6 +48,7 @@
 
 #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.
@@ -60,24 +61,24 @@
 
 #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);
diff --git a/gdb/config/i386/tm-go32.h b/gdb/config/i386/tm-go32.h
index 3db97f9..fb6eabd 100644
--- a/gdb/config/i386/tm-go32.h
+++ b/gdb/config/i386/tm-go32.h
@@ -1,5 +1,5 @@
 /* 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.
 
@@ -18,6 +18,10 @@
    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
 
@@ -60,18 +64,30 @@ extern int i387_hex_long_double_input (char *p, long double *putithere);
   *((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 */
diff --git a/gdb/config/i386/xm-go32.h b/gdb/config/i386/xm-go32.h
index 868074d..871b121 100644
--- a/gdb/config/i386/xm-go32.h
+++ b/gdb/config/i386/xm-go32.h
@@ -36,3 +36,4 @@
 #define DIRNAME_SEPARATOR ';'
 
 #define HOST_I386
+typedef unsigned char fd_mask;