# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1435512111 25200
# Node ID c47e1750c26428e4a2e5b9ba8f5ed7f3fcbc3717
# Parent  b52cd6854c28c527f7e31c6a78f1543a0846532e
Use MAP_32BIT on Linux since my hint seems to be ignored

diff -r b52cd6854c28 -r c47e1750c264 mem.c
--- a/mem.c	Sun Jun 28 10:12:37 2015 -0700
+++ b/mem.c	Sun Jun 28 10:21:51 2015 -0700
@@ -14,13 +14,17 @@
 #define MAP_ANONYMOUS MAP_ANON
 #endif
 
+#ifndef MAP_32BIT
+#define MAP_32BIT 0
+#endif
+
 void * alloc_code(size_t *size)
 {
 	//start at the 1GB mark to allow plenty of room for sbrk based malloc implementations
 	//while still keeping well within 32-bit displacement range for calling code compiled into the executable
 	static uint8_t *next = (uint8_t *)0x40000000;
 	*size += PAGE_SIZE - (*size & (PAGE_SIZE - 1));
-	uint8_t *ret = mmap(NULL, *size, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	uint8_t *ret = mmap(NULL, *size, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_32BIT, -1, 0);
 	next = ret + *size;
 	return ret;
 }