.align 2; \
label##3:
+
+#ifndef CONFIG_CC_IS_CLANG
+#define CHECK_ALT_SIZE(else_size, body_size) \
+ .ifgt (else_size) - (body_size); \
+ .error "Feature section else case larger than body"; \
+ .endif;
+#else
+/*
+ * If we use the ifgt syntax above, clang's assembler complains about the
+ * expression being non-absolute when the code appears in an inline assembly
+ * statement.
+ * As a workaround use an .org directive that has no effect if the else case
+ * instructions are smaller than the body, but fails otherwise.
+ */
+#define CHECK_ALT_SIZE(else_size, body_size) \
+ .org . + ((else_size) > (body_size));
+#endif
+
#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
label##4: \
.popsection; \
FTR_ENTRY_OFFSET label##2b-label##5b; \
FTR_ENTRY_OFFSET label##3b-label##5b; \
FTR_ENTRY_OFFSET label##4b-label##5b; \
- .ifgt (label##4b- label##3b)-(label##2b- label##1b); \
- .error "Feature section else case larger than body"; \
- .endif; \
+ CHECK_ALT_SIZE((label##4b-label##3b), (label##2b-label##1b)); \
.popsection;