From 05dccae75df4ed0c6a75867a89cf1a4055507e28 Mon Sep 17 00:00:00 2001 From: Hung-Te Lin Date: Mon, 28 Jan 2013 15:04:30 +0800 Subject: cbfstool: move flat-binary parsing to cbfs-mkpayload. The ELF parsing and payload building in add-flat-binary command should be isolated just like mkpayload and mkstage. Since the add-flat-binary command creates a payload in the end , move payload processing to cbfs-mkpayload.c. To test: cbfstool coreboot.rom add-flat-binary -f u-boot.bin -n fallback/payload \ -l 0x100000 -e 0x100020 To verify, get output from "cbfstool coreboot.rom print -v": fallback/payload 0x73ccc0 payload 124920 INFO: code (no compression, offset: 0x38, load: 0x1110000, length:..) Change-Id: Ia7bd2e6160507c0a1e8e20bc1d08397ce9826e0d Signed-off-by: Hung-Te Lin Reviewed-on: http://review.coreboot.org/2197 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks --- util/cbfstool/cbfs-mkpayload.c | 53 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) (limited to 'util/cbfstool/cbfs-mkpayload.c') diff --git a/util/cbfstool/cbfs-mkpayload.c b/util/cbfstool/cbfs-mkpayload.c index da04a75785..060e9ee283 100644 --- a/util/cbfstool/cbfs-mkpayload.c +++ b/util/cbfstool/cbfs-mkpayload.c @@ -202,3 +202,56 @@ int parse_elf_to_payload(unsigned char *input, unsigned char **output, err: return -1; } + +int parse_flat_binary_to_payload(unsigned char *input, unsigned char **output, + int32_t input_size, + uint32_t loadaddress, + uint32_t entrypoint, + comp_algo algo) +{ + comp_func_ptr compress; + unsigned char *payload; + struct cbfs_payload_segment *segs; + int doffset, len = 0; + + compress = compression_function(algo); + if (!compress) + return -1; + + DEBUG("start: parse_flat_binary_to_payload\n"); + + /* FIXME compressed file size might be bigger than original file and + * causing buffer overflow. */ + payload = calloc((2 * sizeof(struct cbfs_payload_segment)) + input_size, 1); + if (payload == NULL) { + ERROR("Could not allocate memory.\n"); + return -1; + } + + segs = (struct cbfs_payload_segment *)payload; + doffset = (2 * sizeof(*segs)); + + /* Prepare code segment */ + segs[0].type = PAYLOAD_SEGMENT_CODE; + segs[0].load_addr = htonll(loadaddress); + segs[0].mem_len = htonl(input_size); + segs[0].offset = htonl(doffset); + + compress((char*)input, input_size, (char*)payload + doffset, &len); + segs[0].compression = htonl(algo); + segs[0].len = htonl(len); + + if ((unsigned int)len >= input_size) { + WARN("Compressing data would make it bigger - disabled.\n"); + segs[0].compression = 0; + segs[0].len = htonl(input_size); + memcpy(payload + doffset, input, input_size); + } + + /* prepare entry point segment */ + segs[1].type = PAYLOAD_SEGMENT_ENTRY; + segs[1].load_addr = htonll(entrypoint); + *output = payload; + + return doffset + ntohl(segs[0].len); +} -- cgit v1.2.3