Import a slightly modified Bayou version into svn. This is based

on the last snapshot posted by Jordan Crouse. This commit is long
overdue.

Changes by me include:

 - Rename 'utils' to 'util' for consistency with our other projects.

 - Move the main code out of src/* into the top-level directory.

 - Add missing license headers to the following files:
   Makefile, pbuilder/liblar/Makefile, util/pbuilder/Makefile.

 - Dropped the util/pbuilder/lzma completely. I'm working on reusing
   the lzma/ dir from v3 via svn:externals. Alas, this also means
   that Bayou won't yet compile out of the box.

 - Coding-style and white-space fixes (indent) for all files.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3719 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 147 insertions, 0 deletions

diff --git a/payloads/bayou/self.c b/payloads/bayou/self.c
new file mode 100644
index 0000000000..0de2a62260
--- /dev/null
+++ b/payloads/bayou/self.c
@@ -0,0 +1,147 @@
+/*
+ * This file is part of the bayou project.
+ *
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "bayou.h"
+#include "self.h"
+
+static int nop_decompress(void *dst, void *src, int len)
+{
+	memcpy(dst, src, len);
+	return len;
+}
+
+#ifdef CONFIG_LZMA
+extern int ulzma(u8 *, u8 *);
+
+static int lzma_decompress(void *dst, void *src, int len)
+{
+	return ulzma((u8 *) src, (u8 *) dst);
+}
+#endif
+
+#ifdef CONFIG_NRV2B
+extern int unrv2b(u8 *, u8 *, unsigned long *);
+
+static int nrv2b_decompress(void *dst, void *src, int len)
+{
+	unsigned long l = (u32) len;
+	return unrv2b(src, dst, &l);
+}
+#endif
+
+static int zeros_decompress(void *dst, void *src, int len)
+{
+	memset(dst, 0, len);
+	return len;
+}
+
+int self_get_params(u8 *fptr, u8 **params)
+{
+	struct self_segment *seg = (struct self_segment *)fptr;
+
+	while (seg->type != SELF_TYPE_ENTRY) {
+		if (seg->type == 0)
+			return -1;
+
+		if (seg->type == SELF_TYPE_PARAMS) {
+			*params = (u8 *) (fptr + seg->offset);
+			return seg->len;
+		}
+
+		seg++;
+	}
+
+	*params = NULL;
+
+	return 0;
+}
+
+int verify_self(u8 *ptr)
+{
+	struct self_segment *seg = (struct self_segment *)ptr;
+
+	switch (seg->type) {
+	case SELF_TYPE_CODE:
+	case SELF_TYPE_DATA:
+	case SELF_TYPE_BSS:
+	case SELF_TYPE_PARAMS:
+	case SELF_TYPE_ENTRY:
+		return 1;
+	}
+
+	return 0;
+}
+
+int self_load_and_run(struct payload *p, int *ret)
+{
+	struct self_segment *seg = (struct self_segment *)p->fptr;
+	int (*dcmp) (void *, void *, int);
+	int dlen;
+
+	switch (p->stat.compression) {
+#ifdef CONFIG_LZMA
+	case ALGO_LZMA:
+		dcmp = lzma_decompress;
+		break;
+#endif
+#ifdef CONFIG_NRV2B
+	case ALGO_NRV2B:
+		dcmp = nrv2b_decompress;
+		break;
+#endif
+	case ALGO_ZEROES:
+		dcmp = zeros_decompress;
+		break;
+	case ALGO_NONE:
+		dcmp = nop_decompress;
+	default:
+		printf("E: Unsupported decompression type\n");
+		return -1;
+	}
+
+	while (1) {
+		u32 laddr = (u32) (seg->load_addr & 0xFFFFFFFF);
+
+		switch (seg->type) {
+		case SELF_TYPE_CODE:
+		case SELF_TYPE_DATA:
+			dlen = dcmp((void *)laddr,
+				    (void *)p->fptr + seg->offset, seg->len);
+
+			if (dlen < seg->mem_len) {
+				memset((void *)(laddr + dlen), 0,
+				       seg->mem_len - dlen);
+			}
+			break;
+
+		case SELF_TYPE_BSS:
+			memset((void *)laddr, 0, seg->len);
+			break;
+		case SELF_TYPE_ENTRY:
+			*ret = exec(laddr, 0, NULL);
+			return 0;
+		default:
+			break;
+		}
+
+		seg++;
+	}
+
+	return -1;
+}