use generic ELF loader
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1832 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard
parent
5fe141fd30
commit
b37837317f
218
hw/elf_ops.h
218
hw/elf_ops.h
@ -1,218 +0,0 @@
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#ifdef BSWAP_NEEDED
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static void glue(bswap_ehdr, SZ)(struct elfhdr *ehdr)
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{
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bswap16s(&ehdr->e_type); /* Object file type */
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bswap16s(&ehdr->e_machine); /* Architecture */
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bswap32s(&ehdr->e_version); /* Object file version */
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bswapSZs(&ehdr->e_entry); /* Entry point virtual address */
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bswapSZs(&ehdr->e_phoff); /* Program header table file offset */
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bswapSZs(&ehdr->e_shoff); /* Section header table file offset */
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bswap32s(&ehdr->e_flags); /* Processor-specific flags */
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bswap16s(&ehdr->e_ehsize); /* ELF header size in bytes */
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bswap16s(&ehdr->e_phentsize); /* Program header table entry size */
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bswap16s(&ehdr->e_phnum); /* Program header table entry count */
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bswap16s(&ehdr->e_shentsize); /* Section header table entry size */
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bswap16s(&ehdr->e_shnum); /* Section header table entry count */
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bswap16s(&ehdr->e_shstrndx); /* Section header string table index */
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}
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static void glue(bswap_phdr, SZ)(struct elf_phdr *phdr)
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{
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bswap32s(&phdr->p_type); /* Segment type */
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bswapSZs(&phdr->p_offset); /* Segment file offset */
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bswapSZs(&phdr->p_vaddr); /* Segment virtual address */
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bswapSZs(&phdr->p_paddr); /* Segment physical address */
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bswapSZs(&phdr->p_filesz); /* Segment size in file */
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bswapSZs(&phdr->p_memsz); /* Segment size in memory */
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bswap32s(&phdr->p_flags); /* Segment flags */
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bswapSZs(&phdr->p_align); /* Segment alignment */
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}
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static void glue(bswap_shdr, SZ)(struct elf_shdr *shdr)
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{
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bswap32s(&shdr->sh_name);
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bswap32s(&shdr->sh_type);
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bswapSZs(&shdr->sh_flags);
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bswapSZs(&shdr->sh_addr);
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bswapSZs(&shdr->sh_offset);
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bswapSZs(&shdr->sh_size);
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bswap32s(&shdr->sh_link);
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bswap32s(&shdr->sh_info);
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bswapSZs(&shdr->sh_addralign);
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bswapSZs(&shdr->sh_entsize);
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}
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static void glue(bswap_sym, SZ)(struct elf_sym *sym)
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{
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bswap32s(&sym->st_name);
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bswapSZs(&sym->st_value);
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bswapSZs(&sym->st_size);
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bswap16s(&sym->st_shndx);
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}
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#endif
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static int glue(find_phdr, SZ)(struct elfhdr *ehdr, int fd, struct elf_phdr *phdr, elf_word type)
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{
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int i, retval;
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retval = lseek(fd, ehdr->e_phoff, SEEK_SET);
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if (retval < 0)
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return -1;
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for (i = 0; i < ehdr->e_phnum; i++) {
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retval = read(fd, phdr, sizeof(*phdr));
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if (retval < 0)
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return -1;
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glue(bswap_phdr, SZ)(phdr);
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if (phdr->p_type == type)
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return 0;
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}
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return -1;
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}
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static void * glue(find_shdr, SZ)(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, elf_word type)
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{
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int i, retval;
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retval = lseek(fd, ehdr->e_shoff, SEEK_SET);
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if (retval < 0)
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return NULL;
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for (i = 0; i < ehdr->e_shnum; i++) {
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retval = read(fd, shdr, sizeof(*shdr));
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if (retval < 0)
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return NULL;
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glue(bswap_shdr, SZ)(shdr);
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if (shdr->sh_type == type)
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return qemu_malloc(shdr->sh_size);
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}
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return NULL;
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}
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static void * glue(find_strtab, SZ)(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, struct elf_shdr *symtab)
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{
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int retval;
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retval = lseek(fd, ehdr->e_shoff + sizeof(struct elf_shdr) * symtab->sh_link, SEEK_SET);
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if (retval < 0)
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return NULL;
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retval = read(fd, shdr, sizeof(*shdr));
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if (retval < 0)
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return NULL;
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glue(bswap_shdr, SZ)(shdr);
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if (shdr->sh_type == SHT_STRTAB)
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return qemu_malloc(shdr->sh_size);;
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return NULL;
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}
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static int glue(read_program, SZ)(int fd, struct elf_phdr *phdr, void *dst, elf_word entry)
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{
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int retval;
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retval = lseek(fd, phdr->p_offset + entry - phdr->p_vaddr, SEEK_SET);
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if (retval < 0)
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return -1;
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return read(fd, dst, phdr->p_filesz);
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}
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static int glue(read_section, SZ)(int fd, struct elf_shdr *s, void *dst)
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{
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int retval;
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retval = lseek(fd, s->sh_offset, SEEK_SET);
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if (retval < 0)
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return -1;
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retval = read(fd, dst, s->sh_size);
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if (retval < 0)
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return -1;
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return 0;
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}
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static void * glue(process_section, SZ)(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, elf_word type)
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{
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void *dst;
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dst = glue(find_shdr, SZ)(ehdr, fd, shdr, type);
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if (!dst)
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goto error;
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if (glue(read_section, SZ)(fd, shdr, dst))
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goto error;
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return dst;
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error:
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qemu_free(dst);
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return NULL;
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}
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static void * glue(process_strtab, SZ)(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, struct elf_shdr *symtab)
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{
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void *dst;
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dst = glue(find_strtab, SZ)(ehdr, fd, shdr, symtab);
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if (!dst)
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goto error;
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if (glue(read_section, SZ)(fd, shdr, dst))
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goto error;
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return dst;
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error:
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qemu_free(dst);
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return NULL;
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}
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static void glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd)
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{
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struct elf_shdr symtab, strtab;
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struct elf_sym *syms;
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#if (SZ == 64)
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struct elf32_sym *syms32;
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#endif
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struct syminfo *s;
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int nsyms, i;
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char *str;
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/* Symbol table */
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syms = glue(process_section, SZ)(ehdr, fd, &symtab, SHT_SYMTAB);
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if (!syms)
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return;
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nsyms = symtab.sh_size / sizeof(struct elf_sym);
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#if (SZ == 64)
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syms32 = qemu_mallocz(nsyms * sizeof(struct elf32_sym));
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#endif
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for (i = 0; i < nsyms; i++) {
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glue(bswap_sym, SZ)(&syms[i]);
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#if (SZ == 64)
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syms32[i].st_name = syms[i].st_name;
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syms32[i].st_info = syms[i].st_info;
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syms32[i].st_other = syms[i].st_other;
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syms32[i].st_shndx = syms[i].st_shndx;
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syms32[i].st_value = syms[i].st_value & 0xffffffff;
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syms32[i].st_size = syms[i].st_size & 0xffffffff;
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#endif
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}
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/* String table */
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str = glue(process_strtab, SZ)(ehdr, fd, &strtab, &symtab);
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if (!str)
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goto error_freesyms;
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/* Commit */
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s = qemu_mallocz(sizeof(*s));
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#if (SZ == 64)
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s->disas_symtab = syms32;
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qemu_free(syms);
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#else
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s->disas_symtab = syms;
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#endif
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s->disas_num_syms = nsyms;
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s->disas_strtab = str;
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s->next = syminfos;
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syminfos = s;
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return;
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error_freesyms:
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#if (SZ == 64)
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qemu_free(syms32);
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#endif
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qemu_free(syms);
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return;
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}
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201
hw/magic-load.c
201
hw/magic-load.c
@ -1,201 +0,0 @@
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#include "vl.h"
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#include "disas.h"
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#include "exec-all.h"
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struct exec
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{
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uint32_t a_info; /* Use macros N_MAGIC, etc for access */
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uint32_t a_text; /* length of text, in bytes */
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uint32_t a_data; /* length of data, in bytes */
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uint32_t a_bss; /* length of uninitialized data area, in bytes */
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uint32_t a_syms; /* length of symbol table data in file, in bytes */
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uint32_t a_entry; /* start address */
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uint32_t a_trsize; /* length of relocation info for text, in bytes */
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uint32_t a_drsize; /* length of relocation info for data, in bytes */
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};
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#ifdef BSWAP_NEEDED
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static void bswap_ahdr(struct exec *e)
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{
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bswap32s(&e->a_info);
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bswap32s(&e->a_text);
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bswap32s(&e->a_data);
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bswap32s(&e->a_bss);
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bswap32s(&e->a_syms);
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bswap32s(&e->a_entry);
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bswap32s(&e->a_trsize);
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bswap32s(&e->a_drsize);
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}
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#else
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#define bswap_ahdr(x) do { } while (0)
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#endif
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#define N_MAGIC(exec) ((exec).a_info & 0xffff)
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#define OMAGIC 0407
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#define NMAGIC 0410
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#define ZMAGIC 0413
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#define QMAGIC 0314
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#define _N_HDROFF(x) (1024 - sizeof (struct exec))
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#define N_TXTOFF(x) \
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(N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \
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(N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
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#define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? TARGET_PAGE_SIZE : 0)
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#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
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#define _N_SEGMENT_ROUND(x) (((x) + TARGET_PAGE_SIZE - 1) & ~(TARGET_PAGE_SIZE - 1))
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#define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
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#define N_DATADDR(x) \
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(N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \
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: (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2MSB
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#define ELF_ARCH EM_SPARC
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#include "elf.h"
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#ifndef BSWAP_NEEDED
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#define bswap_ehdr32(e) do { } while (0)
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#define bswap_phdr32(e) do { } while (0)
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#define bswap_shdr32(e) do { } while (0)
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#define bswap_sym32(e) do { } while (0)
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#ifdef TARGET_SPARC64
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#define bswap_ehdr64(e) do { } while (0)
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#define bswap_phdr64(e) do { } while (0)
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#define bswap_shdr64(e) do { } while (0)
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#define bswap_sym64(e) do { } while (0)
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#endif
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#endif
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#define SZ 32
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#define elf_word uint32_t
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#define bswapSZs bswap32s
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#include "elf_ops.h"
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#ifdef TARGET_SPARC64
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#undef elfhdr
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#undef elf_phdr
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#undef elf_shdr
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#undef elf_sym
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#undef elf_note
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#undef elf_word
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#undef bswapSZs
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#undef SZ
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#define elfhdr elf64_hdr
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#define elf_phdr elf64_phdr
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#define elf_note elf64_note
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#define elf_shdr elf64_shdr
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#define elf_sym elf64_sym
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#define elf_word uint64_t
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#define bswapSZs bswap64s
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#define SZ 64
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#include "elf_ops.h"
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#endif
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int load_elf(const char *filename, uint8_t *addr)
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{
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struct elf32_hdr ehdr;
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int retval, fd;
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Elf32_Half machine;
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fd = open(filename, O_RDONLY | O_BINARY);
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if (fd < 0)
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goto error;
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retval = read(fd, &ehdr, sizeof(ehdr));
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if (retval < 0)
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goto error;
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if (ehdr.e_ident[0] != 0x7f || ehdr.e_ident[1] != 'E'
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|| ehdr.e_ident[2] != 'L' || ehdr.e_ident[3] != 'F')
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goto error;
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machine = tswap16(ehdr.e_machine);
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if (machine == EM_SPARC || machine == EM_SPARC32PLUS) {
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struct elf32_phdr phdr;
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bswap_ehdr32(&ehdr);
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if (find_phdr32(&ehdr, fd, &phdr, PT_LOAD))
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goto error;
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retval = read_program32(fd, &phdr, addr, ehdr.e_entry);
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if (retval < 0)
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goto error;
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load_symbols32(&ehdr, fd);
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}
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#ifdef TARGET_SPARC64
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else if (machine == EM_SPARCV9) {
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struct elf64_hdr ehdr64;
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struct elf64_phdr phdr;
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lseek(fd, 0, SEEK_SET);
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retval = read(fd, &ehdr64, sizeof(ehdr64));
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if (retval < 0)
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goto error;
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bswap_ehdr64(&ehdr64);
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if (find_phdr64(&ehdr64, fd, &phdr, PT_LOAD))
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goto error;
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retval = read_program64(fd, &phdr, phys_ram_base + ehdr64.e_entry, ehdr64.e_entry);
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if (retval < 0)
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goto error;
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load_symbols64(&ehdr64, fd);
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}
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#endif
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close(fd);
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return retval;
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error:
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close(fd);
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return -1;
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}
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int load_aout(const char *filename, uint8_t *addr)
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{
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int fd, size, ret;
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struct exec e;
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uint32_t magic;
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fd = open(filename, O_RDONLY | O_BINARY);
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if (fd < 0)
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return -1;
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size = read(fd, &e, sizeof(e));
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if (size < 0)
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goto fail;
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bswap_ahdr(&e);
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magic = N_MAGIC(e);
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switch (magic) {
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case ZMAGIC:
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case QMAGIC:
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case OMAGIC:
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lseek(fd, N_TXTOFF(e), SEEK_SET);
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size = read(fd, addr, e.a_text + e.a_data);
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if (size < 0)
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goto fail;
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break;
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case NMAGIC:
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lseek(fd, N_TXTOFF(e), SEEK_SET);
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size = read(fd, addr, e.a_text);
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if (size < 0)
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goto fail;
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ret = read(fd, addr + N_DATADDR(e), e.a_data);
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if (ret < 0)
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goto fail;
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size += ret;
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break;
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default:
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goto fail;
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}
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close(fd);
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return size;
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fail:
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close(fd);
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return -1;
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}
|
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|
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10
hw/sun4m.c
10
hw/sun4m.c
@ -26,6 +26,7 @@
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#define KERNEL_LOAD_ADDR 0x00004000
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#define CMDLINE_ADDR 0x007ff000
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#define INITRD_LOAD_ADDR 0x00800000
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#define PROM_SIZE_MAX (256 * 1024)
|
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#define PROM_ADDR 0xffd00000
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#define PROM_FILENAMEB "proll.bin"
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#define PROM_FILENAMEE "proll.elf"
|
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@ -263,9 +264,12 @@ static void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
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slavio_misc = slavio_misc_init(PHYS_JJ_SLAVIO, PHYS_JJ_ME_IRQ);
|
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|
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prom_offset = ram_size + vram_size;
|
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cpu_register_physical_memory(PROM_ADDR,
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(PROM_SIZE_MAX + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK,
|
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prom_offset | IO_MEM_ROM);
|
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|
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snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEE);
|
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ret = load_elf(buf, phys_ram_base + prom_offset);
|
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ret = load_elf(buf, 0);
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if (ret < 0) {
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||||
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEB);
|
||||
ret = load_image(buf, phys_ram_base + prom_offset);
|
||||
@ -275,12 +279,10 @@ static void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
|
||||
buf);
|
||||
exit(1);
|
||||
}
|
||||
cpu_register_physical_memory(PROM_ADDR, (ret + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK,
|
||||
prom_offset | IO_MEM_ROM);
|
||||
|
||||
kernel_size = 0;
|
||||
if (linux_boot) {
|
||||
kernel_size = load_elf(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
|
||||
kernel_size = load_elf(kernel_filename, -0xf0000000);
|
||||
if (kernel_size < 0)
|
||||
kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
|
||||
if (kernel_size < 0)
|
||||
|
||||
11
hw/sun4u.c
11
hw/sun4u.c
@ -27,6 +27,7 @@
|
||||
#define KERNEL_LOAD_ADDR 0x00404000
|
||||
#define CMDLINE_ADDR 0x003ff000
|
||||
#define INITRD_LOAD_ADDR 0x00300000
|
||||
#define PROM_SIZE_MAX (256 * 1024)
|
||||
#define PROM_ADDR 0x1fff0000000ULL
|
||||
#define APB_SPECIAL_BASE 0x1fe00000000ULL
|
||||
#define APB_MEM_BASE 0x1ff00000000ULL
|
||||
@ -277,9 +278,12 @@ static void sun4u_init(int ram_size, int vga_ram_size, int boot_device,
|
||||
cpu_register_physical_memory(0, ram_size, 0);
|
||||
|
||||
prom_offset = ram_size + vga_ram_size;
|
||||
cpu_register_physical_memory(PROM_ADDR,
|
||||
(PROM_SIZE_MAX + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK,
|
||||
prom_offset | IO_MEM_ROM);
|
||||
|
||||
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEE);
|
||||
ret = load_elf(buf, phys_ram_base + prom_offset);
|
||||
ret = load_elf(buf, 0);
|
||||
if (ret < 0) {
|
||||
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEB);
|
||||
ret = load_image(buf, phys_ram_base + prom_offset);
|
||||
@ -289,13 +293,12 @@ static void sun4u_init(int ram_size, int vga_ram_size, int boot_device,
|
||||
buf);
|
||||
exit(1);
|
||||
}
|
||||
cpu_register_physical_memory(PROM_ADDR, (ret + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK,
|
||||
prom_offset | IO_MEM_ROM);
|
||||
|
||||
kernel_size = 0;
|
||||
initrd_size = 0;
|
||||
if (linux_boot) {
|
||||
kernel_size = load_elf(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
|
||||
/* XXX: put correct offset */
|
||||
kernel_size = load_elf(kernel_filename, 0);
|
||||
if (kernel_size < 0)
|
||||
kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
|
||||
if (kernel_size < 0)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user