#endif
int valid_elf_image (unsigned long addr);
-unsigned long load_elf_image (unsigned long addr);
+static unsigned long load_elf_image_phdr(unsigned long addr);
+static unsigned long load_elf_image_shdr(unsigned long addr);
/* Allow ports to override the default behavior */
__attribute__((weak))
-unsigned long do_bootelf_exec (ulong (*entry)(int, char *[]), int argc, char *argv[])
+unsigned long do_bootelf_exec (ulong (*entry)(int, char * const[]),
+ int argc, char * const argv[])
{
unsigned long ret;
/* ======================================================================
* Interpreter command to boot an arbitrary ELF image from memory.
* ====================================================================== */
-int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long addr; /* Address of the ELF image */
unsigned long rc; /* Return value from user code */
+ char *sload, *saddr;
/* -------------------------------------------------- */
int rcode = 0;
- if (argc < 2)
- addr = load_addr;
+ sload = saddr = NULL;
+ if (argc == 3) {
+ sload = argv[1];
+ saddr = argv[2];
+ } else if (argc == 2) {
+ if (argv[1][0] == '-')
+ sload = argv[1];
+ else
+ saddr = argv[1];
+ }
+
+ if (saddr)
+ addr = simple_strtoul(saddr, NULL, 16);
else
- addr = simple_strtoul (argv[1], NULL, 16);
+ addr = load_addr;
if (!valid_elf_image (addr))
return 1;
- addr = load_elf_image (addr);
+ if (sload && sload[1] == 'p')
+ addr = load_elf_image_phdr(addr);
+ else
+ addr = load_elf_image_shdr(addr);
printf ("## Starting application at 0x%08lx ...\n", addr);
* be either an ELF image or a raw binary. Will attempt to setup the
* bootline and other parameters correctly.
* ====================================================================== */
-int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long addr; /* Address of image */
unsigned long bootaddr; /* Address to put the bootline */
/* Check to see if we need to tftp the image ourselves before starting */
if ((argc == 2) && (strcmp (argv[1], "tftp") == 0)) {
- if (NetLoop (TFTP) <= 0)
+ if (NetLoop(TFTPGET) <= 0)
return 1;
- printf ("Automatic boot of VxWorks image at address 0x%08lx ... \n",
- addr);
+ printf("Automatic boot of VxWorks image at address 0x%08lx "
+ "...\n", addr);
}
#endif
#if defined(CONFIG_WALNUT)
tmp = (char *) CONFIG_SYS_NVRAM_BASE_ADDR + 0x500;
- eth_getenv_enetaddr("ethaddr", build_buf);
+ eth_getenv_enetaddr("ethaddr", (uchar *)build_buf);
memcpy(tmp, &build_buf[3], 3);
#elif defined(CONFIG_SYS_VXWORKS_MAC_PTR)
tmp = (char *) CONFIG_SYS_VXWORKS_MAC_PTR;
- eth_getenv_enetaddr("ethaddr", build_buf);
+ eth_getenv_enetaddr("ethaddr", (uchar *)build_buf);
memcpy(tmp, build_buf, 6);
#else
puts ("## Ethernet MAC address not copied to NV RAM\n");
*/
if (valid_elf_image (addr)) {
- addr = load_elf_image (addr);
+ addr = load_elf_image_shdr (addr);
} else {
puts ("## Not an ELF image, assuming binary\n");
/* leave addr as load_addr */
(char *) bootaddr);
printf ("## Starting vxWorks at 0x%08lx ...\n", addr);
- ((void (*)(void)) addr) ();
+ dcache_disable();
+ ((void (*)(int)) addr) (0);
puts ("## vxWorks terminated\n");
return 1;
* A very simple elf loader, assumes the image is valid, returns the
* entry point address.
* ====================================================================== */
-unsigned long load_elf_image (unsigned long addr)
+static unsigned long load_elf_image_phdr(unsigned long addr)
+{
+ Elf32_Ehdr *ehdr; /* Elf header structure pointer */
+ Elf32_Phdr *phdr; /* Program header structure pointer */
+ int i;
+
+ ehdr = (Elf32_Ehdr *) addr;
+ phdr = (Elf32_Phdr *) (addr + ehdr->e_phoff);
+
+ /* Load each program header */
+ for (i = 0; i < ehdr->e_phnum; ++i) {
+ void *dst = (void *) phdr->p_paddr;
+ void *src = (void *) addr + phdr->p_offset;
+ debug("Loading phdr %i to 0x%p (%i bytes)\n",
+ i, dst, phdr->p_filesz);
+ if (phdr->p_filesz)
+ memcpy(dst, src, phdr->p_filesz);
+ if (phdr->p_filesz != phdr->p_memsz)
+ memset(dst + phdr->p_filesz, 0x00, phdr->p_memsz - phdr->p_filesz);
+ flush_cache((unsigned long)dst, phdr->p_filesz);
+ ++phdr;
+ }
+
+ return ehdr->e_entry;
+}
+
+static unsigned long load_elf_image_shdr(unsigned long addr)
{
Elf32_Ehdr *ehdr; /* Elf header structure pointer */
Elf32_Shdr *shdr; /* Section header structure pointer */
}
if (strtab) {
- printf ("%sing %s @ 0x%08lx (%ld bytes)\n",
+ debug("%sing %s @ 0x%08lx (%ld bytes)\n",
(shdr->sh_type == SHT_NOBITS) ?
"Clear" : "Load",
&strtab[shdr->sh_name],
/* ====================================================================== */
U_BOOT_CMD(
- bootelf, 2, 0, do_bootelf,
+ bootelf, 3, 0, do_bootelf,
"Boot from an ELF image in memory",
- " [address] - load address of ELF image.\n"
+ "[-p|-s] [address]\n"
+ "\t- load ELF image at [address] via program headers (-p)\n"
+ "\t or via section headers (-s)"
);
U_BOOT_CMD(
bootvx, 2, 0, do_bootvx,
"Boot vxWorks from an ELF image",
- " [address] - load address of vxWorks ELF image.\n"
+ " [address] - load address of vxWorks ELF image."
);
projects / J-u-boot.git / blobdiff