move container_of to types.h

[openocd.git] / src / helper / types.h

diff --git a/src/helper/types.h b/src/helper/types.h
index 21a6a33763282a428c529d4d6daccd32b05bb76f..a8753c5f149115c539e2e39d3eeb07256344f172 100644 (file)
--- a/src/helper/types.h
+++ b/src/helper/types.h
@@ -23,6 +23,7 @@
 #ifndef TYPES_H
 #define TYPES_H
 
+#include <stddef.h>
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -33,8 +34,6 @@
 #include <inttypes.h>
 #endif
 
-typedef struct jtag_tap_s jtag_tap_t;
-
 #ifdef HAVE_STDBOOL_H
 #include <stdbool.h>
 #else  /* HAVE_STDBOOL_H */
@@ -56,6 +55,24 @@ typedef bool _Bool;
 
 #endif /* HAVE_STDBOOL_H */
 
+/// turns a macro argument into a string constant
+#define stringify(s) __stringify(s)
+#define __stringify(s) #s
+
+
+/**
+ * Cast a member of a structure out to the containing structure.
+ * @param ptr The pointer to the member.
+ * @param type The type of the container struct this is embedded in.
+ * @param member The name of the member within the struct.
+ *
+ * This is a mechanism which is used throughout the Linux kernel.
+ */
+#define container_of(ptr, type, member) ({                     \
+       const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+       (type *)( (char *)__mptr - offsetof(type,member) );})
+
+
 /* DANGER!!!! here be dragons!
  *
  * Leave these fn's as byte accesses because it is safe
@@ -123,13 +140,14 @@ static inline void h_u16_to_be(uint8_t* buf, int val)
        buf[1] = (uint8_t) (val >> 0);
 }
 
-#ifdef __ECOS
+#if defined(__ECOS)
+
 /* eCos plain lacks these definition... A series of upstream patches
  * could probably repair it, but it seems like too much work to be
  * worth it.
  */
 
-
+#if !defined(_STDINT_H)
 #define PRIx32 "x"
 #define PRId32 "d"
 #define SCNx32 "x"
@@ -151,7 +169,16 @@ typedef uint64_t uintmax_t;
 #define INT64_MAX 0x7fffffffffffffffLL
 #define INT64_MIN (-INT64_MAX - 1LL)
 #define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)
+#endif
+
+    #ifndef LLONG_MAX
+       #define ULLONG_MAX      UINT64_C(0xFFFFFFFFFFFFFFFF)
+       #define LLONG_MAX       INT64_C(0x7FFFFFFFFFFFFFFF)
+       #define LLONG_MIN       ULLONG_MAX
+    #endif
+
 
+#define ULLONG_MAX 18446744073709551615
 
 /* C99, eCos is C90 compliant (with bits of C99) */
 #define isblank(c) ((c) == ' ' || (c) == '\t')