m4_define([check_structs], [$top_srcdir/build-aux/check-structs])
m4_define([RUN_STRUCT_CHECKER],
- [AT_SKIP_IF([test $HAVE_PYTHON = no])
+ [AT_KEYWORDS([check-structs])
+ AT_SKIP_IF([test $HAVE_PYTHON = no])
AT_DATA([test.h], [$1
])
AT_CHECK_UNQUOTED([$PYTHON check_structs test.h], [$2], [$3], [$4])])
AT_SETUP([check struct tail padding])
RUN_STRUCT_CHECKER(
[struct xyz {
- uint16_t x;
+ ovs_be16 x;
};],
[1], [],
[test.h:3: warning: struct xyz needs 2 bytes of tail padding
AT_SETUP([check struct internal alignment])
RUN_STRUCT_CHECKER(
[struct xyzzy {
- uint16_t x;
- uint32_t y;
+ ovs_be16 x;
+ ovs_be32 y;
};],
[1], [],
[test.h:3: warning: struct xyzzy member y is 2 bytes short of 4-byte alignment
AT_SETUP([check struct declared size])
RUN_STRUCT_CHECKER(
[struct wibble {
- uint64_t z;
+ ovs_be64 z;
};
OFP_ASSERT(sizeof(struct wibble) == 12);
],
[test.h:4: warning: struct wibble is 8 bytes long but declared as 12
])
AT_CLEANUP
+
+AT_SETUP([check wrong struct's declared size])
+RUN_STRUCT_CHECKER(
+[struct moo {
+ ovs_be64 bar;
+};
+OFP_ASSERT(sizeof(struct moo) == 8);
+struct wibble {
+ ovs_be64 z;
+};
+OFP_ASSERT(sizeof(struct moo) == 8);
+], [1], [], [test.h:8: warning: checking size of struct moo but struct wibble was most recently defined
+])
+AT_CLEANUP