diff options
Diffstat (limited to 'payloads/bayou/util/pbuilder/liblar/self.c')
| -rw-r--r-- | payloads/bayou/util/pbuilder/liblar/self.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/payloads/bayou/util/pbuilder/liblar/self.c b/payloads/bayou/util/pbuilder/liblar/self.c deleted file mode 100644 index b26356688d..0000000000 --- a/payloads/bayou/util/pbuilder/liblar/self.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * This file is part of the bayou project. - * - * Copyright (C) 2008 Advanced Micro Devices, Inc. - * - * Includes code from util/lar from coreboot-v3 - * - * Copyright (C) 2006-2007 coresystems GmbH - * Copyright (C) 2007 Patrick Georgi <patrick@georgi-clan.de> - * Copyright (C) 2007 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. - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <sys/stat.h> -#include "elf.h" -#include <sys/mman.h> -#include <unistd.h> -#include <fcntl.h> -#include <stdint.h> - -typedef uint64_t u64; -typedef int64_t s64; -typedef uint32_t u32; -typedef int32_t s32; -typedef uint8_t u8; - -#include "self.h" - -int elf_to_self(const char *filename, unsigned char **buffer, - void (*compress) (char *, int, char *, int *)) -{ - struct stat s; - Elf32_Phdr *phdr; - Elf32_Ehdr *ehdr; - Elf32_Shdr *shdr; - void *filep; - char *header, *strtab; - unsigned char *sptr; - int headers, segments = 1, isize = 0, osize = 0, doffset = 0, fd, i; - struct self_segment *segs; - - if (stat(filename, &s)) { - printf("Unable to stat %s: %m\n", filename); - return -1; - } - - fd = open(filename, O_RDONLY); - - if (fd == -1) { - printf("Unable to open %s: %m\n", filename); - return -1; - } - - /* Map the file so that we can easily parse it. */ - filep = (void *) - mmap(0, s.st_size, PROT_READ, MAP_SHARED, fd, 0); - - if (filep == MAP_FAILED) { - close(fd); - return -1; - } - - ehdr = (Elf32_Ehdr *) filep; - headers = ehdr->e_phnum; - header = (char *)ehdr; - - phdr = (Elf32_Phdr *) & (header[ehdr->e_phoff]); - shdr = (Elf32_Shdr *) & (header[ehdr->e_shoff]); - - strtab = &header[shdr[ehdr->e_shstrndx].sh_offset]; - - /* Count number of headers - look for the .notes.pinfo section. */ - for (i = 0; i < ehdr->e_shnum; i++) { - char *name; - - if (i == ehdr->e_shstrndx) - continue; - - if (shdr[i].sh_size == 0) - continue; - - name = (char *)(strtab + shdr[i].sh_name); - - if (!strcmp(name, ".note.pinfo")) - segments++; - } - - /* - * Now, regular headers - we only care about PT_LOAD headers, - * because thats what we're actually going to load. - */ - for (i = 0; i < headers; i++) { - if (phdr[i].p_type != PT_LOAD) - continue; - - /* Empty segments are never interesting. */ - if (phdr[i].p_memsz == 0) - continue; - - isize += phdr[i].p_filesz; - segments++; - } - - /* Allocate a block of memory to store the SELF in. */ - sptr = calloc((segments * sizeof(struct self_segment)) + isize, 1); - doffset = (segments * sizeof(struct self_segment)); - - if (sptr == NULL) - goto err; - - segs = (struct self_segment *)sptr; - segments = 0; - - for (i = 0; i < ehdr->e_shnum; i++) { - char *name; - - if (i == ehdr->e_shstrndx) - continue; - - if (shdr[i].sh_size == 0) - continue; - - name = (char *)(strtab + shdr[i].sh_name); - - if (!strcmp(name, ".note.pinfo")) { - segs[segments].type = SELF_TYPE_PARAMS; - segs[segments].load_addr = 0; - segs[segments].len = (u32) shdr[i].sh_size; - segs[segments].offset = doffset; - - memcpy((unsigned long *)(sptr + doffset), - &header[shdr[i].sh_offset], shdr[i].sh_size); - - doffset += segs[segments].len; - osize += segs[segments].len; - - segments++; - } - } - - for (i = 0; i < headers; i++) { - if (phdr[i].p_type != PT_LOAD) - continue; - - if (phdr[i].p_memsz == 0) - continue; - - segs[segments].type = SELF_TYPE_DATA; - segs[segments].load_addr = (u64) phdr[i].p_paddr; - segs[segments].mem_len = (u32) phdr[i].p_memsz; - segs[segments].offset = doffset; - - compress((char *)&header[phdr[i].p_offset], - phdr[i].p_filesz, - (char *)(sptr + doffset), (int *)&segs[segments].len); - - doffset += segs[segments].len; - osize += segs[segments].len; - - segments++; - } - - segs[segments].type = SELF_TYPE_ENTRY; - segs[segments++].load_addr = (unsigned long long)ehdr->e_entry; - - *buffer = sptr; - - munmap(filep, s.st_size); - close(fd); - - return (segments * sizeof(struct self_segment)) + osize; - -err: - munmap(filep, s.st_size); - close(fd); - - return -1; -} - -int iself(char *filename) -{ - Elf32_Ehdr ehdr; - int fd = open(filename, O_RDONLY); - int ret = 0; - - if (fd == -1) - return 0; - - if (read(fd, &ehdr, sizeof(ehdr)) == sizeof(ehdr)) - ret = !memcmp(ehdr.e_ident, ELFMAG, 4); - - close(fd); - - return ret; -} |