sim: convert to bfd_endian

Rather than re-invent endian defines, as well as maintain our own list
of OS & arch-specific includes, punt all that logic in favor of the bfd
ones already set up and maintained elsewhere.  We already rely on the
bfd library, so leveraging the endian aspect should be fine.

1 files changed, 14 insertions, 176 deletions

diff --git a/sim/common/sim-config.h b/sim/common/sim-config.h
index a5a8950..fbd9b25 100644
--- a/sim/common/sim-config.h
+++ b/sim/common/sim-config.h
@@ -30,181 +30,19 @@
    particular it defines the macro's:
 
    	WITH_HOST_BYTE_ORDER	The byte order of the host. Could
-				be any of LITTLE_ENDIAN, BIG_ENDIAN
-				or 0 (unknown).  Those macro's also
+				be any of BFD_ENDIAN_LITTLE, BFD_ENDIAN_BIG,
+				or BFD_ENDIAN_UNKNOWN.  Those macro's also
 				need to be defined.
 
  */
 
 
-/* NetBSD:
-
-   NetBSD is easy, everything you could ever want is in a header file
-   (well almost :-) */
-
-#if defined(__NetBSD__)
-# include <machine/endian.h>
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
-# endif
-# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
-#  error "host endian incorrectly configured, check config.h"
-# endif
-#endif
-
-/* Linux is similarly easy.  */
-
-#if defined(__linux__)
-# include <endian.h>
-# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
-#  define LITTLE_ENDIAN __LITTLE_ENDIAN
-# endif
-# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
-#  define BIG_ENDIAN __BIG_ENDIAN
-# endif
-# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
-#  define BYTE_ORDER __BYTE_ORDER
-# endif
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
-# endif
-# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
-#  error "host endian incorrectly configured, check config.h"
-# endif
-#endif
-
-/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
-   BIG_ENDIAN macro's */
-
-
-/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */
-
-#ifndef LITTLE_ENDIAN
-#define LITTLE_ENDIAN 1234
-#endif
-#ifndef BIG_ENDIAN
-#define BIG_ENDIAN 4321
-#endif
-
-
-/* SunOS on SPARC:
-
-   Big endian last time I looked */
-
-#if defined(sparc) || defined(__sparc__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
-#  error "sun was big endian last time I looked ..."
-# endif
-#endif
-
-
-/* Random x86
-
-   Little endian last time I looked */
-
-#if defined(i386) || defined(i486) || defined(i586) || defined (i686) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined (__i686__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "x86 was little endian last time I looked ..."
-# endif
-#endif
-
 #if (defined (__i486__) || defined (__i586__) || defined (__i686__)) && defined(__GNUC__) && WITH_BSWAP
 #undef  htonl
 #undef  ntohl
 #define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
 #define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
 #endif
-
-/* Power or PowerPC running AIX  */
-#if defined(_POWER) && defined(_AIX)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
-#  error "Power/PowerPC AIX was big endian last time I looked ..."
-# endif
-#endif
-
-/* Solaris running PowerPC */
-#if defined(__PPC) && defined(__sun__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "Solaris on PowerPCs was little endian last time I looked ..."
-# endif
-#endif
-
-/* HP/PA */
-#if defined(__hppa__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
-#  error "HP/PA was big endian last time I looked ..."
-# endif
-#endif
-
-/* Big endian MIPS */
-#if defined(__MIPSEB__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
-#  error "MIPSEB was big endian last time I looked ..."
-# endif
-#endif
-
-/* Little endian MIPS */
-#if defined(__MIPSEL__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "MIPSEL was little endian last time I looked ..."
-# endif
-#endif
-
-/* Windows NT */
-#if defined(__WIN32__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "Windows NT was little endian last time I looked ..."
-# endif
-#endif
-
-/* Alpha running DEC unix */
-#if defined(__osf__) && defined(__alpha__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "AXP running DEC unix was little endian last time I looked ..."
-# endif
-#endif
-
-
-/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and
-   BIG_ENDIAN definitions available.  */
 
 /* Until devices and tree properties are sorted out, tell sim-config.c
    not to call the tree_find_foo fns.  */
@@ -217,28 +55,28 @@
    of the host/target it is able to eliminate slower generic endian
    handling code.
 
-   Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */
+   Possible values are BFD_ENDIAN_UNKNOWN, BFD_ENDIAN_LITTLE, BFD_ENDIAN_BIG.  */
 
 #ifndef WITH_HOST_BYTE_ORDER
-#define WITH_HOST_BYTE_ORDER		0 /*unknown*/
+#define WITH_HOST_BYTE_ORDER		BFD_ENDIAN_UNKNOWN
 #endif
 
 #ifndef WITH_TARGET_BYTE_ORDER
-#define WITH_TARGET_BYTE_ORDER		0 /*unknown*/
+#define WITH_TARGET_BYTE_ORDER		BFD_ENDIAN_UNKNOWN
 #endif
 
 #ifndef WITH_DEFAULT_TARGET_BYTE_ORDER
-#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */
+#define WITH_DEFAULT_TARGET_BYTE_ORDER	BFD_ENDIAN_UNKNOWN
 #endif
 
-extern int current_host_byte_order;
-#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \
-				 ? WITH_HOST_BYTE_ORDER \
-				 : current_host_byte_order)
-extern int current_target_byte_order;
-#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \
-				   ? WITH_TARGET_BYTE_ORDER \
-				   : current_target_byte_order)
+extern enum bfd_endian current_host_byte_order;
+#define CURRENT_HOST_BYTE_ORDER \
+  (WITH_HOST_BYTE_ORDER != BFD_ENDIAN_UNKNOWN \
+   ? WITH_HOST_BYTE_ORDER : current_host_byte_order)
+extern enum bfd_endian current_target_byte_order;
+#define CURRENT_TARGET_BYTE_ORDER \
+  (WITH_TARGET_BYTE_ORDER != BFD_ENDIAN_UNKNOWN \
+   ? WITH_TARGET_BYTE_ORDER : current_target_byte_order)