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authorUwe Hermann <uwe@hermann-uwe.de>2008-11-02 17:01:06 +0000
committerUwe Hermann <uwe@hermann-uwe.de>2008-11-02 17:01:06 +0000
commit7eb845e815924984b301aaf674b090cde28c1c6a (patch)
treed85a1080fd20b0ad8e1859d012fe90ba9cdf1cd9 /payloads/bayou/self.c
parent91df5619dbb7d2064f9947f2fbc56477f7b707c3 (diff)
downloadcoreboot-7eb845e815924984b301aaf674b090cde28c1c6a.tar.xz
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
Diffstat (limited to 'payloads/bayou/self.c')
-rw-r--r--payloads/bayou/self.c147
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;
+}