babeltrace headers sync

[lttngtop.git] / lib / babeltrace / endian.h

diff --git a/lib/babeltrace/endian.h b/lib/babeltrace/endian.h
index f15a44fb857b1370a54ffa36ec754a0c5a4ee065..001a47172b9c51a954758bcee36af4f3b79d8a56 100644 (file)
--- a/lib/babeltrace/endian.h
+++ b/lib/babeltrace/endian.h
@@ -47,7 +47,98 @@
 #define BYTE_ORDER     __BYTE_ORDER
 #else
 #include <endian.h>
-#endif
+
+/*
+ * htobe/betoh are not defined for glibc < 2.9, so add them explicitly
+ * if they are missing.
+ */
+# ifdef __USE_BSD
+/* Conversion interfaces. */
+#  include <byteswap.h>
+
+#  if __BYTE_ORDER == __LITTLE_ENDIAN
+#   ifndef htobe16
+#    define htobe16(x) __bswap_16(x)
+#   endif
+#   ifndef htole16
+#    define htole16(x) (x)
+#   endif
+#   ifndef be16toh
+#    define be16toh(x) __bswap_16(x)
+#   endif
+#   ifndef le16toh
+#    define le16toh(x) (x)
+#   endif
+
+#   ifndef htobe32
+#    define htobe32(x) __bswap_32(x)
+#   endif
+#   ifndef htole32
+#    define htole32(x) (x)
+#   endif
+#   ifndef be32toh
+#    define be32toh(x) __bswap_32(x)
+#   endif
+#   ifndef le32toh
+#    define le32toh(x) (x)
+#   endif
+
+#   ifndef htobe64
+#    define htobe64(x) __bswap_64(x)
+#   endif
+#   ifndef htole64
+#    define htole64(x) (x)
+#   endif
+#   ifndef be64toh
+#    define be64toh(x) __bswap_64(x)
+#   endif
+#   ifndef le64toh
+#    define le64toh(x) (x)
+#   endif
+
+#  else /* __BYTE_ORDER == __LITTLE_ENDIAN */
+#   ifndef htobe16
+#    define htobe16(x) (x)
+#   endif
+#   ifndef htole16
+#    define htole16(x) __bswap_16(x)
+#   endif
+#   ifndef be16toh
+#    define be16toh(x) (x)
+#   endif
+#   ifndef le16toh
+#    define le16toh(x) __bswap_16(x)
+#   endif
+
+#   ifndef htobe32
+#    define htobe32(x) (x)
+#   endif
+#   ifndef htole32
+#    define htole32(x) __bswap_32(x)
+#   endif
+#   ifndef be32toh
+#    define be32toh(x) (x)
+#   endif
+#   ifndef le32toh
+#    define le32toh(x) __bswap_32(x)
+#   endif
+
+#   ifndef htobe64
+#    define htobe64(x) (x)
+#   endif
+#   ifndef htole64
+#    define htole64(x) __bswap_64(x)
+#   endif
+#   ifndef be64toh
+#    define be64toh(x) (x)
+#   endif
+#   ifndef le64toh
+#    define le64toh(x) __bswap_64(x)
+#   endif
+
+#  endif /* __BYTE_ORDER == __LITTLE_ENDIAN */
+# endif /* __USE_BSD */
+#endif /* else -- __FreeBSD__ */
 
 #ifndef FLOAT_WORD_ORDER
 #ifdef __FLOAT_WORD_ORDER