1 files changed, 70 insertions, 0 deletions
diff --git a/com32/elflink/elf_utils.c b/com32/elflink/elf_utils.c
new file mode 100644
index 00000000..be320772
--- /dev/null
+++ b/com32/elflink/elf_utils.c
@@ -0,0 +1,70 @@
+#include <stdlib.h>
+#include <errno.h>
+
+#include "elf_utils.h"
+
+unsigned long elf_hash(const unsigned char *name) {
+	unsigned long h = 0;
+	unsigned long g;
+
+	while (*name) {
+		h = (h << 4) + *name++;
+		if ((g = h & 0xF0000000))
+			h ^= g >> 24;
+
+		h &= ~g;
+	}
+
+	return h;
+}
+
+unsigned long elf_gnu_hash(const unsigned char *name) {
+	unsigned long h = 5381;
+	unsigned char c;
+
+	for (c = *name; c != '\0'; c = *++name) {
+		h = h * 33 + c;
+	}
+
+	return h & 0xFFFFFFFF;
+}
+
+
+struct memalign_info {
+	void 	*start_addr;
+	char	data[0];
+};
+
+int elf_malloc(void **memptr, size_t alignment, size_t size) {
+	void *start_addr = NULL;
+	struct memalign_info *info;
+
+	if ((alignment & (alignment - 1)) != 0)
+		return EINVAL;
+	if (alignment % sizeof(void*) != 0)
+		return EINVAL;
+
+	start_addr = malloc(size + (alignment > sizeof(struct memalign_info) ?
+					alignment : sizeof(struct memalign_info)));
+
+	if (start_addr == NULL)
+		return ENOMEM;
+
+
+	info = (struct memalign_info*)(start_addr -
+			((unsigned long)start_addr % alignment) +
+			alignment - sizeof(struct memalign_info));
+
+	info->start_addr = start_addr;
+
+	*memptr = info->data;
+
+	return 0;
+}
+
+void elf_free(void *memptr) {
+	struct memalign_info *info = (struct memalign_info*)(memptr -
+			sizeof(struct memalign_info));
+
+	free(info->start_addr);
+}