aboutsummaryrefslogtreecommitdiffstats
path: root/elf_ops.h
diff options
context:
space:
mode:
Diffstat (limited to 'elf_ops.h')
-rw-r--r--elf_ops.h217
1 files changed, 0 insertions, 217 deletions
diff --git a/elf_ops.h b/elf_ops.h
deleted file mode 100644
index 6126565..0000000
--- a/elf_ops.h
+++ /dev/null
@@ -1,217 +0,0 @@
-static void glue(bswap_ehdr, SZ)(struct elfhdr *ehdr)
-{
- bswap16s(&ehdr->e_type); /* Object file type */
- bswap16s(&ehdr->e_machine); /* Architecture */
- bswap32s(&ehdr->e_version); /* Object file version */
- bswapSZs(&ehdr->e_entry); /* Entry point virtual address */
- bswapSZs(&ehdr->e_phoff); /* Program header table file offset */
- bswapSZs(&ehdr->e_shoff); /* Section header table file offset */
- bswap32s(&ehdr->e_flags); /* Processor-specific flags */
- bswap16s(&ehdr->e_ehsize); /* ELF header size in bytes */
- bswap16s(&ehdr->e_phentsize); /* Program header table entry size */
- bswap16s(&ehdr->e_phnum); /* Program header table entry count */
- bswap16s(&ehdr->e_shentsize); /* Section header table entry size */
- bswap16s(&ehdr->e_shnum); /* Section header table entry count */
- bswap16s(&ehdr->e_shstrndx); /* Section header string table index */
-}
-
-static void glue(bswap_phdr, SZ)(struct elf_phdr *phdr)
-{
- bswap32s(&phdr->p_type); /* Segment type */
- bswapSZs(&phdr->p_offset); /* Segment file offset */
- bswapSZs(&phdr->p_vaddr); /* Segment virtual address */
- bswapSZs(&phdr->p_paddr); /* Segment physical address */
- bswapSZs(&phdr->p_filesz); /* Segment size in file */
- bswapSZs(&phdr->p_memsz); /* Segment size in memory */
- bswap32s(&phdr->p_flags); /* Segment flags */
- bswapSZs(&phdr->p_align); /* Segment alignment */
-}
-
-static void glue(bswap_shdr, SZ)(struct elf_shdr *shdr)
-{
- bswap32s(&shdr->sh_name);
- bswap32s(&shdr->sh_type);
- bswapSZs(&shdr->sh_flags);
- bswapSZs(&shdr->sh_addr);
- bswapSZs(&shdr->sh_offset);
- bswapSZs(&shdr->sh_size);
- bswap32s(&shdr->sh_link);
- bswap32s(&shdr->sh_info);
- bswapSZs(&shdr->sh_addralign);
- bswapSZs(&shdr->sh_entsize);
-}
-
-static void glue(bswap_sym, SZ)(struct elf_sym *sym)
-{
- bswap32s(&sym->st_name);
- bswapSZs(&sym->st_value);
- bswapSZs(&sym->st_size);
- bswap16s(&sym->st_shndx);
-}
-
-static struct elf_shdr *glue(find_section, SZ)(struct elf_shdr *shdr_table,
- int n, int type)
-{
- int i;
- for(i=0;i<n;i++) {
- if (shdr_table[i].sh_type == type)
- return shdr_table + i;
- }
- return NULL;
-}
-
-static int glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd, int must_swab)
-{
- struct elf_shdr *symtab, *strtab, *shdr_table = NULL;
- struct elf_sym *syms = NULL;
-#if (SZ == 64)
- struct elf32_sym *syms32 = NULL;
-#endif
- struct syminfo *s;
- int nsyms, i;
- char *str = NULL;
-
- shdr_table = load_at(fd, ehdr->e_shoff,
- sizeof(struct elf_shdr) * ehdr->e_shnum);
- if (!shdr_table)
- return -1;
-
- if (must_swab) {
- for (i = 0; i < ehdr->e_shnum; i++) {
- glue(bswap_shdr, SZ)(shdr_table + i);
- }
- }
-
- symtab = glue(find_section, SZ)(shdr_table, ehdr->e_shnum, SHT_SYMTAB);
- if (!symtab)
- goto fail;
- syms = load_at(fd, symtab->sh_offset, symtab->sh_size);
- if (!syms)
- goto fail;
-
- nsyms = symtab->sh_size / sizeof(struct elf_sym);
-#if (SZ == 64)
- syms32 = qemu_mallocz(nsyms * sizeof(struct elf32_sym));
-#endif
- for (i = 0; i < nsyms; i++) {
- if (must_swab)
- glue(bswap_sym, SZ)(&syms[i]);
-#if (SZ == 64)
- syms32[i].st_name = syms[i].st_name;
- syms32[i].st_info = syms[i].st_info;
- syms32[i].st_other = syms[i].st_other;
- syms32[i].st_shndx = syms[i].st_shndx;
- syms32[i].st_value = syms[i].st_value & 0xffffffff;
- syms32[i].st_size = syms[i].st_size & 0xffffffff;
-#endif
- }
- /* String table */
- if (symtab->sh_link >= ehdr->e_shnum)
- goto fail;
- strtab = &shdr_table[symtab->sh_link];
-
- str = load_at(fd, strtab->sh_offset, strtab->sh_size);
- if (!str)
- goto fail;
-
- /* Commit */
- s = qemu_mallocz(sizeof(*s));
-#if (SZ == 64)
- s->disas_symtab = syms32;
- qemu_free(syms);
-#else
- s->disas_symtab = syms;
-#endif
- s->disas_num_syms = nsyms;
- s->disas_strtab = str;
- s->next = syminfos;
- syminfos = s;
- qemu_free(shdr_table);
- return 0;
- fail:
-#if (SZ == 64)
- qemu_free(syms32);
-#endif
- qemu_free(syms);
- qemu_free(str);
- qemu_free(shdr_table);
- return -1;
-}
-
-static int glue(load_elf, SZ)(int fd, int64_t virt_to_phys_addend,
- int must_swab, uint64_t *pentry,
- uint64_t *lowaddr, uint64_t *highaddr)
-{
- struct elfhdr ehdr;
- struct elf_phdr *phdr = NULL, *ph;
- int size, i, total_size;
- elf_word mem_size;
- uint64_t addr, low = 0, high = 0;
- uint8_t *data = NULL;
-
- if (read(fd, &ehdr, sizeof(ehdr)) != sizeof(ehdr))
- goto fail;
- if (must_swab) {
- glue(bswap_ehdr, SZ)(&ehdr);
- }
-
- if (ELF_MACHINE != ehdr.e_machine)
- goto fail;
-
- if (pentry)
- *pentry = (uint64_t)(elf_sword)ehdr.e_entry;
-
- glue(load_symbols, SZ)(&ehdr, fd, must_swab);
-
- size = ehdr.e_phnum * sizeof(phdr[0]);
- lseek(fd, ehdr.e_phoff, SEEK_SET);
- phdr = qemu_mallocz(size);
- if (!phdr)
- goto fail;
- if (read(fd, phdr, size) != size)
- goto fail;
- if (must_swab) {
- for(i = 0; i < ehdr.e_phnum; i++) {
- ph = &phdr[i];
- glue(bswap_phdr, SZ)(ph);
- }
- }
-
- total_size = 0;
- for(i = 0; i < ehdr.e_phnum; i++) {
- ph = &phdr[i];
- if (ph->p_type == PT_LOAD) {
- mem_size = ph->p_memsz;
- /* XXX: avoid allocating */
- data = qemu_mallocz(mem_size);
- if (ph->p_filesz > 0) {
- if (lseek(fd, ph->p_offset, SEEK_SET) < 0)
- goto fail;
- if (read(fd, data, ph->p_filesz) != ph->p_filesz)
- goto fail;
- }
- addr = ph->p_vaddr + virt_to_phys_addend;
-
- cpu_physical_memory_write_rom(addr, data, mem_size);
-
- total_size += mem_size;
- if (!low || addr < low)
- low = addr;
- if (!high || (addr + mem_size) > high)
- high = addr + mem_size;
-
- qemu_free(data);
- data = NULL;
- }
- }
- qemu_free(phdr);
- if (lowaddr)
- *lowaddr = (uint64_t)(elf_sword)low;
- if (highaddr)
- *highaddr = (uint64_t)(elf_sword)high;
- return total_size;
- fail:
- qemu_free(data);
- qemu_free(phdr);
- return -1;
-}