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Rev 2927 Rev 3001
Line 55... Line 55...
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    "unsupported image type",
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    "unsupported image type",
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    "irrecoverable error"
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    "irrecoverable error"
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};
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};
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 58 
 
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static int segment_header(elf_segment_header_t *entry, elf_header_t *elf,
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static int segment_header(elf_segment_header_t *entry, elf_header_t *elf,
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    as_t *as);
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    as_t *as, int flags);
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static int section_header(elf_section_header_t *entry, elf_header_t *elf,
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static int section_header(elf_section_header_t *entry, elf_header_t *elf,
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    as_t *as);
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    as_t *as);
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static int load_segment(elf_segment_header_t *entry, elf_header_t *elf,
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static int load_segment(elf_segment_header_t *entry, elf_header_t *elf,
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    as_t *as);
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    as_t *as);
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 65 
 
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/** ELF loader
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/** ELF loader
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 *
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 *
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 * @param header Pointer to ELF header in memory
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 * @param header Pointer to ELF header in memory
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 * @param as Created and properly mapped address space
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 * @param as Created and properly mapped address space
- 
 
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 * @param flags A combination of ELD_F_*
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 * @return EE_OK on success
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 * @return EE_OK on success
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 */
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 */
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unsigned int elf_load(elf_header_t *header, as_t * as)
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unsigned int elf_load(elf_header_t *header, as_t * as, int flags)
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{
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{
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    int i, rc;
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    int i, rc;
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    /* Identify ELF */
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    /* Identify ELF */
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    if (header->e_ident[EI_MAG0] != ELFMAG0 ||
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    if (header->e_ident[EI_MAG0] != ELFMAG0 ||
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    for (i = 0; i < header->e_phnum; i++) {
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    for (i = 0; i < header->e_phnum; i++) {
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        elf_segment_header_t *seghdr;
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        elf_segment_header_t *seghdr;
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        seghdr = &((elf_segment_header_t *)(((uint8_t *) header) +
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        seghdr = &((elf_segment_header_t *)(((uint8_t *) header) +
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            header->e_phoff))[i];
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            header->e_phoff))[i];
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        rc = segment_header(seghdr, header, as);
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        rc = segment_header(seghdr, header, as, flags);
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        if (rc != EE_OK)
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        if (rc != EE_OK)
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            return rc;
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            return rc;
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    }
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    }
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    /* Inspect all section headers and proccess them. */
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    /* Inspect all section headers and proccess them. */
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 * @param as Address space into wich the ELF is being loaded.
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 * @param as Address space into wich the ELF is being loaded.
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 *
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 *
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 * @return EE_OK on success, error code otherwise.
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 * @return EE_OK on success, error code otherwise.
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 */
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 */
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static int segment_header(elf_segment_header_t *entry, elf_header_t *elf,
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static int segment_header(elf_segment_header_t *entry, elf_header_t *elf,
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    as_t *as)
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    as_t *as, int flags)
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{
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{
- 
 
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    char *interp;
- 
 
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    switch (entry->p_type) {
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    switch (entry->p_type) {
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    case PT_NULL:
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    case PT_NULL:
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    case PT_PHDR:
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    case PT_PHDR:
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        break;
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        break;
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    case PT_LOAD:
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    case PT_LOAD:
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        return load_segment(entry, elf, as);
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        return load_segment(entry, elf, as);
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        break;
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        break;
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    case PT_DYNAMIC:
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    case PT_DYNAMIC:
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    case PT_INTERP:
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    case PT_INTERP:
- 
 
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        interp = (char *)elf + entry->p_offset;
- 
 
 165 
        if (memcmp(interp, ELF_INTERP_ZSTR, ELF_INTERP_ZLEN) != 0) {
- 
 
 166 
            return EE_UNSUPPORTED;
- 
 
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        }
- 
 
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        if ((flags & ELD_F_LOADER) == 0) {
- 
 
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            return EE_LOADER;
- 
 
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        }
- 
 
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        break;
161 
    case PT_SHLIB:
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    case PT_SHLIB:
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    case PT_NOTE:
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    case PT_NOTE:
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    case PT_LOPROC:
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    case PT_LOPROC:
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    case PT_HIPROC:
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    case PT_HIPROC:
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    default:
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    default: