[PATCH] FreeBSD/i386 fixes

[Mark Kettenis <kettenis at wins dot uva dot nl>]

I just checked in the following, which fixes a stupid mistake I made
in i386bsd-nat.c:fill_gregset(), and adds some minor tweaks.

Mark


2000-06-01  Mark Kettenis  <kettenis@gnu.org>

	* i386bsd-nat.c: Include "gregset.h".
	(CANNOT_STORE_REGISTER): Define to cannot_fetch_register instead
	of CANNOT_FETCH_REGISTER, if not already defined.
	(supply_gregset): Call supply_register with NULL as its second
	argument instead of supplying our own zeroed out buffer.
	(fill_gregset): Copy contents of correct registers instead of the
	contents of register REGNO.


Index: i386bsd-nat.c
===================================================================
RCS file: /cvs/src/src/gdb/i386bsd-nat.c,v
retrieving revision 1.1
diff -u -p -r1.1 i386bsd-nat.c
--- i386bsd-nat.c	2000/05/24 22:32:58	1.1
+++ i386bsd-nat.c	2000/05/31 23:05:01
@@ -38,6 +38,9 @@ typedef struct reg gregset_t;
 typedef struct fpreg fpregset_t;
 #endif
 
+#include "gregset.h"
+
+
 /* In older BSD versions we cannot get at some of the segment
    registers.  FreeBSD for example didn't support the %fs and %gs
    registers until the 3.0 release.  We have autoconf checks for their
@@ -50,7 +53,7 @@ typedef struct fpreg fpregset_t;
 
 /* Registers we shouldn't try to store.  */
 #if !defined (CANNOT_STORE_REGISTER)
-#define CANNOT_STORE_REGISTER(regno) CANNOT_FETCH_REGISTER (regno)
+#define CANNOT_STORE_REGISTER(regno) cannot_fetch_register (regno)
 #endif
 
 /* Offset to the gregset_t location where REG is stored.  */
@@ -106,16 +109,12 @@ cannot_fetch_register (int regno)
 void
 supply_gregset (gregset_t *gregsetp)
 {
-  char buf[MAX_REGISTER_RAW_SIZE];
   int i;
 
   for (i = 0; i < NUM_GREGS; i++)
     {
       if (CANNOT_FETCH_REGISTER (i))
-	{
-	  memset (buf, 0, REGISTER_RAW_SIZE (i));
-	  supply_register (i, buf);
-	}
+	supply_register (i, NULL);
       else
 	supply_register (i, REG_ADDR (gregsetp, i));
     }
@@ -132,7 +131,7 @@ fill_gregset (gregset_t *gregsetp, int r
 
   for (i = 0; i < NUM_GREGS; i++)
     if ((regno == -1 || regno == i) && ! CANNOT_STORE_REGISTER (i))
-      memcpy (REG_ADDR (gregsetp, i), &registers[REGISTER_BYTE (regno)],
+      memcpy (REG_ADDR (gregsetp, i), &registers[REGISTER_BYTE (i)],
 	      REGISTER_RAW_SIZE (i));
 }
 
@@ -180,7 +179,7 @@ fetch_inferior_registers (int regno)
 
       supply_fpregset (&fpregs);
     }
-}  
+}
 
 /* Store register REGNO back into the inferior.  If REGNO is -1, do
    this for all registers (including the floating point registers).  */