Adding consts helper files back into repository.

consts.c.txt

@@ -0,0 +1,53 @@
+#include <sys/mman.h>
+#include <stdio.h>
+
+#define pcomment(COMMENT) printf("// %s\n", COMMENT)
+#define ppackage(NAME) printf("package %s\n", NAME)
+#define ptype(NAME, TYPE) printf("\ntype %s %s\n", #NAME, #TYPE)
+#define pconstblock(EXPS) { printf("\nconst (\n"); {EXPS} printf(")\n"); }
+#define pconst(NAME, TYPE) printf("\t%-15s %s = 0x%x\n", #NAME, #TYPE, NAME)
+
+int main(int argc, char *argvc[]) {
+    pcomment("** This file is automatically generated from consts.c.txt **\n");
+    ppackage("gommap");
+    ptype(ProtFlags, uint);
+    pconstblock(
+        pconst(PROT_NONE, ProtFlags);
+        pconst(PROT_READ, ProtFlags);
+        pconst(PROT_WRITE, ProtFlags);
+        pconst(PROT_EXEC, ProtFlags);
+    )
+    ptype(MapFlags, uint);
+    pconstblock(
+        pconst(MAP_SHARED, MapFlags);
+        pconst(MAP_PRIVATE, MapFlags);
+        pconst(MAP_FIXED, MapFlags);
+        pconst(MAP_ANONYMOUS, MapFlags);
+        pconst(MAP_GROWSDOWN, MapFlags);
+        pconst(MAP_LOCKED, MapFlags);
+        pconst(MAP_NONBLOCK, MapFlags);
+        pconst(MAP_NORESERVE, MapFlags);
+        pconst(MAP_POPULATE, MapFlags);
+    )
+    ptype(SyncFlags, uint);
+    pconstblock(
+        pconst(MS_SYNC, SyncFlags);
+        pconst(MS_ASYNC, SyncFlags);
+        pconst(MS_INVALIDATE, SyncFlags);
+    )
+    ptype(AdviseFlags, uint);
+    pconstblock(
+        pconst(MADV_NORMAL, AdviseFlags);
+        pconst(MADV_RANDOM, AdviseFlags);
+        pconst(MADV_SEQUENTIAL, AdviseFlags);
+        pconst(MADV_WILLNEED, AdviseFlags);
+        pconst(MADV_DONTNEED, AdviseFlags);
+        pconst(MADV_REMOVE, AdviseFlags);
+        pconst(MADV_DONTFORK, AdviseFlags);
+        pconst(MADV_DOFORK, AdviseFlags);
+    )
+    return 0;
+}
+
+/* vim:ft=c
+*/

consts.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+gcc -xc -Wall -pedantic consts.c.txt -o _consts.out
+./_consts.out > consts.go
+rm ./_consts.out