blob: 225b060e6c9a7f637fd8a1f43fe3ecb42171a359 [file] [log] [blame]
// Copyright 2016 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdlib.h>
#include <zircon/process.h>
#include <zircon/syscalls.h>
#include <elf/elf.h>
#include <elfload/elfload.h>
struct elf_load_info {
elf_load_header_t header;
elf_phdr_t phdrs[];
typedef struct elf_load_info elf_load_info_t;
static void elf_load_destroy(elf_load_info_t* info) { free(info); }
static zx_status_t elf_load_start(zx_handle_t vmo, const void* hdr_buf, size_t buf_sz,
elf_load_info_t** infop) {
elf_load_header_t header;
uintptr_t phoff;
zx_status_t status = elf_load_prepare(vmo, hdr_buf, buf_sz, &header, &phoff);
if (status == ZX_OK) {
// Now allocate the data structure and read in the phdrs.
size_t phdrs_size = (size_t)header.e_phnum * sizeof(elf_phdr_t);
elf_load_info_t* info = malloc(sizeof(*info) + phdrs_size);
if (info == NULL)
status = elf_load_read_phdrs(vmo, info->phdrs, phoff, header.e_phnum);
if (status == ZX_OK) {
info->header = header;
*infop = info;
} else {
return status;
static zx_status_t elf_load_finish(zx_handle_t vmar, elf_load_info_t* info, zx_handle_t vmo,
zx_handle_t* segments_vmar, zx_vaddr_t* base, zx_vaddr_t* entry) {
return elf_load_map_segments(vmar, &info->header, info->phdrs, vmo, segments_vmar, base, entry);
zx_status_t elf_load_extra(zx_handle_t vmar, zx_handle_t vmo, zx_vaddr_t* base, zx_vaddr_t* entry) {
elf_load_info_t* elf;
zx_status_t status = elf_load_start(vmo, NULL, 0, &elf);
if (status != ZX_OK) {
return status;
status = elf_load_finish(vmar, elf, vmo, NULL, base, entry);
if (status != ZX_OK) {
return status;
return ZX_OK;