*/
#include <common.h>
+#include <bootm.h>
#include <command.h>
#include <linux/ctype.h>
#include <net.h>
DECLARE_GLOBAL_DATA_PTR;
#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[])
+static unsigned long do_bootelf_exec(ulong (*entry)(int, char * const[]),
+ int argc, char * const argv[])
{
unsigned long ret;
* QNX images require the data cache is disabled.
* Data cache is already flushed, so just turn it off.
*/
- int dcache = dcache_status ();
+ int dcache = dcache_status();
if (dcache)
- dcache_disable ();
+ dcache_disable();
/*
* pass address parameter as argv[0] (aka command name),
* and all remaining args
*/
- ret = entry (argc, argv);
+ ret = entry(argc, argv);
if (dcache)
- dcache_enable ();
+ dcache_enable();
return ret;
}
+/* ======================================================================
+ * Determine if a valid ELF image exists at the given memory location.
+ * First looks at the ELF header magic field, the makes sure that it is
+ * executable and makes sure that it is for a PowerPC.
+ * ====================================================================== */
+int valid_elf_image(unsigned long addr)
+{
+ Elf32_Ehdr *ehdr; /* Elf header structure pointer */
+
+ /* -------------------------------------------------- */
+
+ ehdr = (Elf32_Ehdr *) addr;
+
+ if (!IS_ELF(*ehdr)) {
+ printf("## No elf image at address 0x%08lx\n", addr);
+ return 0;
+ }
+
+ if (ehdr->e_type != ET_EXEC) {
+ printf("## Not a 32-bit elf image at address 0x%08lx\n", addr);
+ return 0;
+ }
+
+#if 0
+ if (ehdr->e_machine != EM_PPC) {
+ printf("## Not a PowerPC elf image at address 0x%08lx\n", addr);
+ return 0;
+ }
+#endif
+
+ return 1;
+}
+
/* ======================================================================
* 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))
+ 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);
+ printf("## Starting application at 0x%08lx ...\n", addr);
/*
* pass address parameter as argv[0] (aka command name),
* and all remaining args
*/
- rc = do_bootelf_exec ((void *)addr, argc - 1, argv + 1);
+ rc = do_bootelf_exec((void *)addr, argc - 1, argv + 1);
if (rc != 0)
rcode = 1;
- printf ("## Application terminated, rc = 0x%lx\n", rc);
+ printf("## Application terminated, rc = 0x%lx\n", rc);
return rcode;
}
* 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 */
+ unsigned long bootaddr; /* Address to put the bootline */
char *bootline; /* Text of the bootline */
char *tmp; /* Temporary char pointer */
char build_buf[128]; /* Buffer for building the bootline */
if (argc < 2)
addr = load_addr;
else
- addr = simple_strtoul (argv[1], NULL, 16);
+ addr = simple_strtoul(argv[1], NULL, 16);
#if defined(CONFIG_CMD_NET)
- /* 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)
+ /*
+ * Check to see if we need to tftp the image ourselves before starting
+ */
+ if ((argc == 2) && (strcmp(argv[1], "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;
- memcpy ((char *) tmp, (char *) &gd->bd->bi_enetaddr[3], 3);
+ 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;
- memcpy ((char *) tmp, (char *) &gd->bd->bi_enetaddr[0], 6);
+ eth_getenv_enetaddr("ethaddr", (uchar *)build_buf);
+ memcpy(tmp, build_buf, 6);
#else
- puts ("## Ethernet MAC address not copied to NV RAM\n");
+ puts("## Ethernet MAC address not copied to NV RAM\n");
#endif
/*
* PowerPC is LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET which
* defaults to 0x4200
*/
-
- if ((tmp = getenv ("bootaddr")) == NULL)
+ tmp = getenv("bootaddr");
+ if (!tmp)
bootaddr = CONFIG_SYS_VXWORKS_BOOT_ADDR;
else
- bootaddr = simple_strtoul (tmp, NULL, 16);
+ bootaddr = simple_strtoul(tmp, NULL, 16);
/*
* Check to see if the bootline is defined in the 'bootargs'
* parameter. If it is not defined, we may be able to
* construct the info
*/
-
- if ((bootline = getenv ("bootargs")) != NULL) {
- memcpy ((void *) bootaddr, bootline,
- max (strlen (bootline), 255));
- flush_cache (bootaddr, max (strlen (bootline), 255));
+ bootline = getenv("bootargs");
+ if (bootline) {
+ memcpy((void *) bootaddr, bootline,
+ max(strlen(bootline), 255));
+ flush_cache(bootaddr, max(strlen(bootline), 255));
} else {
-
-
- sprintf (build_buf, CONFIG_SYS_VXWORKS_BOOT_DEVICE);
- if ((tmp = getenv ("bootfile")) != NULL) {
- sprintf (&build_buf[strlen (build_buf)],
+ sprintf(build_buf, CONFIG_SYS_VXWORKS_BOOT_DEVICE);
+ tmp = getenv("bootfile");
+ if (tmp)
+ sprintf(&build_buf[strlen(build_buf)],
"%s:%s ", CONFIG_SYS_VXWORKS_SERVERNAME, tmp);
- } else {
- sprintf (&build_buf[strlen (build_buf)],
+ else
+ sprintf(&build_buf[strlen(build_buf)],
"%s:file ", CONFIG_SYS_VXWORKS_SERVERNAME);
- }
- if ((tmp = getenv ("ipaddr")) != NULL) {
- sprintf (&build_buf[strlen (build_buf)], "e=%s ", tmp);
- }
+ tmp = getenv("ipaddr");
+ if (tmp)
+ sprintf(&build_buf[strlen(build_buf)], "e=%s ", tmp);
- if ((tmp = getenv ("serverip")) != NULL) {
- sprintf (&build_buf[strlen (build_buf)], "h=%s ", tmp);
- }
+ tmp = getenv("serverip");
+ if (tmp)
+ sprintf(&build_buf[strlen(build_buf)], "h=%s ", tmp);
+
+ tmp = getenv("hostname");
+ if (tmp)
+ sprintf(&build_buf[strlen(build_buf)], "tn=%s ", tmp);
- if ((tmp = getenv ("hostname")) != NULL) {
- sprintf (&build_buf[strlen (build_buf)], "tn=%s ", tmp);
- }
#ifdef CONFIG_SYS_VXWORKS_ADD_PARAMS
- sprintf (&build_buf[strlen (build_buf)],
+ sprintf(&build_buf[strlen(build_buf)],
CONFIG_SYS_VXWORKS_ADD_PARAMS);
#endif
- memcpy ((void *) bootaddr, build_buf,
- max (strlen (build_buf), 255));
- flush_cache (bootaddr, max (strlen (build_buf), 255));
+ memcpy((void *) bootaddr, build_buf,
+ max(strlen(build_buf), 255));
+ flush_cache(bootaddr, max(strlen(build_buf), 255));
}
/*
* binary image
*/
- if (valid_elf_image (addr)) {
- addr = load_elf_image (addr);
+ if (valid_elf_image(addr)) {
+ addr = load_elf_image_shdr(addr);
} else {
- puts ("## Not an ELF image, assuming binary\n");
+ puts("## Not an ELF image, assuming binary\n");
/* leave addr as load_addr */
}
- printf ("## Using bootline (@ 0x%lx): %s\n", bootaddr,
+ printf("## Using bootline (@ 0x%lx): %s\n", bootaddr,
(char *) bootaddr);
- printf ("## Starting vxWorks at 0x%08lx ...\n", addr);
+ printf("## Starting vxWorks at 0x%08lx ...\n", addr);
- ((void (*)(void)) addr) ();
+ dcache_disable();
+ ((void (*)(int)) addr) (0);
- puts ("## vxWorks terminated\n");
+ puts("## vxWorks terminated\n");
return 1;
}
/* ======================================================================
- * Determine if a valid ELF image exists at the given memory location.
- * First looks at the ELF header magic field, the makes sure that it is
- * executable and makes sure that it is for a PowerPC.
+ * A very simple elf loader, assumes the image is valid, returns the
+ * entry point address.
* ====================================================================== */
-int valid_elf_image (unsigned long addr)
+static unsigned long load_elf_image_phdr(unsigned long addr)
{
- Elf32_Ehdr *ehdr; /* Elf header structure pointer */
-
- /* -------------------------------------------------- */
+ Elf32_Ehdr *ehdr; /* Elf header structure pointer */
+ Elf32_Phdr *phdr; /* Program header structure pointer */
+ int i;
ehdr = (Elf32_Ehdr *) addr;
-
- if (!IS_ELF (*ehdr)) {
- printf ("## No elf image at address 0x%08lx\n", addr);
- return 0;
- }
-
- if (ehdr->e_type != ET_EXEC) {
- printf ("## Not a 32-bit elf image at address 0x%08lx\n", addr);
- return 0;
+ phdr = (Elf32_Phdr *) (addr + ehdr->e_phoff);
+
+ /* Load each program header */
+ for (i = 0; i < ehdr->e_phnum; ++i) {
+ void *dst = (void *)(uintptr_t) 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;
}
-#if 0
- if (ehdr->e_machine != EM_PPC) {
- printf ("## Not a PowerPC elf image at address 0x%08lx\n",
- addr);
- return 0;
- }
-#endif
-
- return 1;
+ return ehdr->e_entry;
}
-/* ======================================================================
- * 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_shdr(unsigned long addr)
{
Elf32_Ehdr *ehdr; /* Elf header structure pointer */
Elf32_Shdr *shdr; /* Section header structure pointer */
/* Find the section header string table for output info */
shdr = (Elf32_Shdr *) (addr + ehdr->e_shoff +
- (ehdr->e_shstrndx * sizeof (Elf32_Shdr)));
+ (ehdr->e_shstrndx * sizeof(Elf32_Shdr)));
if (shdr->sh_type == SHT_STRTAB)
strtab = (unsigned char *) (addr + shdr->sh_offset);
/* Load each appropriate section */
for (i = 0; i < ehdr->e_shnum; ++i) {
shdr = (Elf32_Shdr *) (addr + ehdr->e_shoff +
- (i * sizeof (Elf32_Shdr)));
+ (i * sizeof(Elf32_Shdr)));
if (!(shdr->sh_flags & SHF_ALLOC)
|| shdr->sh_addr == 0 || shdr->sh_size == 0) {
}
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],
}
if (shdr->sh_type == SHT_NOBITS) {
- memset ((void *)shdr->sh_addr, 0, shdr->sh_size);
+ memset((void *)(uintptr_t) shdr->sh_addr, 0,
+ shdr->sh_size);
} else {
image = (unsigned char *) addr + shdr->sh_offset;
- memcpy ((void *) shdr->sh_addr,
+ memcpy((void *)(uintptr_t) shdr->sh_addr,
(const void *) image,
shdr->sh_size);
}
- flush_cache (shdr->sh_addr, shdr->sh_size);
+ flush_cache(shdr->sh_addr, shdr->sh_size);
}
return ehdr->e_entry;
/* ====================================================================== */
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