Emit 8 NULs for target section name instead of dumping core when the target

[deliverable/binutils-gdb.git] / gdb / defs.h

diff --git a/gdb/defs.h b/gdb/defs.h
index 6e4a22241f52aace0886d388fdf6f89fc24c8946..dd788e626624c2c8cdc4736b16a5d8af36afe5ed 100644 (file)
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -79,7 +79,7 @@
 #define GDB_MULTI_ARCH_TM 2
 
 /* The target is pure multi-arch.  The MULTI-ARCH vector provides all
-   definitions.  "tm.h" is NOT included. */
+   definitions.  "tm.h" is linked to an empty file. */
 
 #define GDB_MULTI_ARCH_PURE 3
 
@@ -710,29 +710,35 @@ enum val_prettyprint
   };
 \f
 
-/* Host machine definition.  This will be a symlink to one of the
-   xm-*.h files, built by the `configure' script.  */
+/* Optional host machine definition.  Pure autoconf targets will not
+   need a "xm.h" file.  This will be a symlink to one of the xm-*.h
+   files, built by the `configure' script.  */
 
+#ifdef GDB_XM_FILE
 #include "xm.h"
+#endif
 
-/* Native machine support.  This will be a symlink to one of the
-   nm-*.h files, built by the `configure' script.  */
+/* Optional native machine support.  Non-native (and possibly pure
+   multi-arch) targets do not need a "nm.h" file.  This will be a
+   symlink to one of the nm-*.h files, built by the `configure'
+   script.  */
 
+#ifdef GDB_NM_FILE
 #include "nm.h"
+#endif
 
-/* Target machine definition.  This will be a symlink to one of the
+/* Optional target machine definition.  Pure multi-arch configurations
+   do not need a "tm.h" file.  This will be a symlink to one of the
    tm-*.h files, built by the `configure' script.  */
 
-#if (GDB_MULTI_ARCH < GDB_MULTI_ARCH_PURE)
+#ifdef GDB_TM_FILE
 #include "tm.h"
 #endif
 
 /* GDB_MULTI_ARCH is normally set by configure.in using information
    from configure.tgt or the config/%/%.mt Makefile fragment.  Since
-   some targets have defined it in their tm.h file, don't provide a
-   default until after "tm.h" has been included.  (In the above #if,
-   GDB_MULTI_ARCH will be interpreted as zero if it is not
-   defined). */
+   some targets have defined it in their "tm.h" file, delay providing
+   a default definition until after "tm.h" has been included.. */
 
 #ifndef GDB_MULTI_ARCH
 #define GDB_MULTI_ARCH 0
@@ -795,10 +801,10 @@ enum val_prettyprint
 #endif
 
 #if !defined (ULONGEST_MAX)
-#define        ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 32-bits */
+#define        ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 #endif
 
-#if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 32-bits */
+#if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 #define        LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 #endif
 
@@ -1019,51 +1025,6 @@ extern char *alloca ();
 #define TARGET_CHAR_BIT 8
 #endif
 
-/* Number of bits in a short or unsigned short for the target machine. */
-#if !defined (TARGET_SHORT_BIT)
-#define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
-#endif
-
-/* Number of bits in an int or unsigned int for the target machine. */
-#if !defined (TARGET_INT_BIT)
-#define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
-#endif
-
-/* Number of bits in a long or unsigned long for the target machine. */
-#if !defined (TARGET_LONG_BIT)
-#define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
-#endif
-
-/* Number of bits in a long long or unsigned long long for the target machine. */
-#if !defined (TARGET_LONG_LONG_BIT)
-#define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
-#endif
-
-/* Number of bits in a float for the target machine. */
-#if !defined (TARGET_FLOAT_BIT)
-#define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
-#endif
-
-/* Number of bits in a double for the target machine. */
-#if !defined (TARGET_DOUBLE_BIT)
-#define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
-#endif
-
-/* Number of bits in a long double for the target machine.  */
-#if !defined (TARGET_LONG_DOUBLE_BIT)
-#define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
-#endif
-
-/* Number of bits in a pointer for the target machine */
-#if !defined (TARGET_PTR_BIT)
-#define TARGET_PTR_BIT TARGET_INT_BIT
-#endif
-
-/* Number of bits in a BFD_VMA for the target object file format. */
-#if !defined (TARGET_BFD_VMA_BIT)
-#define TARGET_BFD_VMA_BIT TARGET_PTR_BIT
-#endif
-
 /* If we picked up a copy of CHAR_BIT from a configuration file
    (which may get it by including <limits.h>) then use it to set
    the number of bits in a host char.  If not, use the same size