Add support to define structures in mig.

Basic syntax is presented below and allows users to define
nested structured types by using simpler or structure types as
members. Mig will use the C padding and alignment rules to produce
the same size as the corresponding C structures.

type timespec_t = struct {
  uint32_t tv_sec;
  uint32_t tv_nsec;
};

This allows us to build stubs that are more easily adaptable to other
architectures.
Message-Id: <Y2SjQSMOINY8I5Dy@viriathus>

1 files changed, 11 insertions, 0 deletions

diff --git a/utils.h b/utils.h
index a5673b0..64e2ebf 100644
--- a/utils.h
+++ b/utils.h
@@ -27,8 +27,19 @@
 #ifndef	_UTILS_H
 #define	_UTILS_H
 
+#include "routine.h"
+
 /* stuff used by more than one of header.c, user.c, server.c */
 
+#define MAX(a,b) \
+  ({ __typeof__ (a) _a = (a); \
+      __typeof__ (b) _b = (b); \
+    _a > _b ? _a : _b; })
+#define MIN(a,b) \
+  ({ __typeof__ (a) _a = (a); \
+      __typeof__ (b) _b = (b); \
+    _a > _b ? _b : _a; })
+
 typedef void	write_list_fn_t(FILE *file, const argument_t *arg);
 
 extern void WriteImport(FILE *file, const_string_t filename);