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3317 dis(1) should support cross-target disassembly

@@ -20,10 +20,11 @@
  */
 
 /*
  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
+ * Copyright 2012 Joshua M. Clulow <josh@sysmgr.org>
  */
 
 #ifndef _LIBDISASM_H
 #define _LIBDISASM_H
 

@@ -36,23 +37,27 @@
 typedef struct dis_handle dis_handle_t;
 
 #define DIS_DEFAULT             0x0
 
 /* SPARC disassembler flags */
-#define DIS_SPARC_V8            0x01
-#define DIS_SPARC_V9            0x02
-#define DIS_SPARC_V9_SGI        0x04
-#define DIS_SPARC_V9_OPL        0x08
-
-/* x86 diassembler flags (mutually exclusive) */
-#define DIS_X86_SIZE16          0x08
-#define DIS_X86_SIZE32          0x10
-#define DIS_X86_SIZE64          0x20
+#define DIS_SPARC_V8            0x001
+#define DIS_SPARC_V9            0x002
+#define DIS_SPARC_V9_SGI        0x004
+#define DIS_SPARC_V9_OPL        0x008
+
+/* x86 diassembler flags */
+#define DIS_X86_SIZE16          0x100
+#define DIS_X86_SIZE32          0x010
+#define DIS_X86_SIZE64          0x020
 
 /* generic disassembler flags */
-#define DIS_OCTAL               0x40
-#define DIS_NOIMMSYM            0x80
+#define DIS_OCTAL               0x040
+#define DIS_NOIMMSYM            0x080
+
+#define DIS_ARCH_MASK           (DIS_SPARC_V8 | \
+                DIS_SPARC_V9 | DIS_SPARC_V9_SGI | DIS_SPARC_V9_OPL | \
+                DIS_X86_SIZE16 | DIS_X86_SIZE32 | DIS_X86_SIZE64)
 
 typedef int (*dis_lookup_f)(void *, uint64_t, char *, size_t, uint64_t *,
     size_t *);
 typedef int (*dis_read_f)(void *, uint64_t, void *, size_t);
 

@@ -63,15 +68,17 @@
 extern uint64_t dis_previnstr(dis_handle_t *, uint64_t, int n);
 extern void dis_set_data(dis_handle_t *, void *);
 extern void dis_flags_set(dis_handle_t *, int f);
 extern void dis_flags_clear(dis_handle_t *, int f);
 extern int dis_max_instrlen(dis_handle_t *);
+extern int dis_min_instrlen(dis_handle_t *);
 extern int dis_instrlen(dis_handle_t *, uint64_t);
 
 /* libdisasm errors */
 #define E_DIS_NOMEM             1       /* Out of memory */
 #define E_DIS_INVALFLAG         2       /* Invalid flag for this architecture */
+#define E_DIS_UNSUPARCH         3       /* Unsupported architecture */
 
 extern int dis_errno(void);
 extern const char *dis_strerror(int);
 
 #ifdef  __cplusplus