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-rw-r--r--common/cmd_elf.c410
1 files changed, 0 insertions, 410 deletions
diff --git a/common/cmd_elf.c b/common/cmd_elf.c
deleted file mode 100644
index 5190cc6..0000000
--- a/common/cmd_elf.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Copyright (c) 2001 William L. Pitts
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are freely
- * permitted provided that the above copyright notice and this
- * paragraph and the following disclaimer are duplicated in all
- * such forms.
- *
- * This software is provided "AS IS" and without any express or
- * implied warranties, including, without limitation, the implied
- * warranties of merchantability and fitness for a particular
- * purpose.
- */
-
-#include <common.h>
-#include <command.h>
-#include <elf.h>
-#include <net.h>
-#include <vxworks.h>
-#ifdef CONFIG_X86
-#include <asm/e820.h>
-#include <linux/linkage.h>
-#endif
-
-/*
- * A very simple elf loader, assumes the image is valid, returns the
- * entry point address.
- */
-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 *)(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;
- }
-
- 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 */
- unsigned char *strtab = 0; /* String table pointer */
- unsigned char *image; /* Binary image pointer */
- int i; /* Loop counter */
-
- ehdr = (Elf32_Ehdr *)addr;
-
- /* Find the section header string table for output info */
- shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
- (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)));
-
- if (!(shdr->sh_flags & SHF_ALLOC) ||
- shdr->sh_addr == 0 || shdr->sh_size == 0) {
- continue;
- }
-
- if (strtab) {
- debug("%sing %s @ 0x%08lx (%ld bytes)\n",
- (shdr->sh_type == SHT_NOBITS) ? "Clear" : "Load",
- &strtab[shdr->sh_name],
- (unsigned long)shdr->sh_addr,
- (long)shdr->sh_size);
- }
-
- if (shdr->sh_type == SHT_NOBITS) {
- memset((void *)(uintptr_t)shdr->sh_addr, 0,
- shdr->sh_size);
- } else {
- image = (unsigned char *)addr + shdr->sh_offset;
- memcpy((void *)(uintptr_t)shdr->sh_addr,
- (const void *)image, shdr->sh_size);
- }
- flush_cache(shdr->sh_addr, shdr->sh_size);
- }
-
- return ehdr->e_entry;
-}
-
-/* Allow ports to override the default behavior */
-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();
- if (dcache)
- dcache_disable();
-
- /*
- * pass address parameter as argv[0] (aka command name),
- * and all remaining args
- */
- ret = entry(argc, argv);
-
- if (dcache)
- dcache_enable();
-
- return ret;
-}
-
-/*
- * Determine if a valid ELF image exists at the given memory location.
- * First look at the ELF header magic field, then make sure that it is
- * executable.
- */
-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;
- }
-
- return 1;
-}
-
-/* Interpreter command to boot an arbitrary ELF image from memory */
-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;
- const char *ep = getenv("autostart");
-
- int rcode = 0;
-
- 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 = load_addr;
-
- if (!valid_elf_image(addr))
- return 1;
-
- if (sload && sload[1] == 'p')
- addr = load_elf_image_phdr(addr);
- else
- addr = load_elf_image_shdr(addr);
-
- if (ep && !strcmp(ep, "no"))
- return rcode;
-
- 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);
- if (rc != 0)
- rcode = 1;
-
- printf("## Application terminated, rc = 0x%lx\n", rc);
-
- return rcode;
-}
-
-/*
- * Interpreter command to boot VxWorks from a memory image. The image can
- * 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 * const argv[])
-{
- unsigned long addr; /* Address of image */
- 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 */
- int ptr = 0;
-#ifdef CONFIG_X86
- struct e820info *info;
- struct e820entry *data;
-#endif
-
- /*
- * Check the loadaddr variable.
- * If we don't know where the image is then we're done.
- */
- if (argc < 2)
- addr = load_addr;
- else
- 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 (net_loop(TFTPGET) <= 0)
- return 1;
- printf("Automatic boot of VxWorks image at address 0x%08lx ...\n",
- addr);
- }
-#endif
-
- /*
- * This should equate to
- * NV_RAM_ADRS + NV_BOOT_OFFSET + NV_ENET_OFFSET
- * from the VxWorks BSP header files.
- * This will vary from board to board
- */
-#if defined(CONFIG_WALNUT)
- tmp = (char *)CONFIG_SYS_NVRAM_BASE_ADDR + 0x500;
- 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", (uchar *)build_buf);
- memcpy(tmp, build_buf, 6);
-#else
- puts("## Ethernet MAC address not copied to NV RAM\n");
-#endif
-
- /*
- * Use bootaddr to find the location in memory that VxWorks
- * will look for the bootline string. The default value is
- * (LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET) as defined by
- * VxWorks BSP. For example, on PowerPC it defaults to 0x4200.
- */
- tmp = getenv("bootaddr");
- if (!tmp) {
- printf("## VxWorks bootline address not specified\n");
- } else {
- 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.
- */
- bootline = getenv("bootargs");
- if (bootline) {
- memcpy((void *)bootaddr, bootline,
- max(strlen(bootline), (size_t)255));
- flush_cache(bootaddr, max(strlen(bootline),
- (size_t)255));
- } else {
- tmp = getenv("bootdev");
- if (tmp) {
- strcpy(build_buf, tmp);
- ptr = strlen(tmp);
- } else
- printf("## VxWorks boot device not specified\n");
-
- tmp = getenv("bootfile");
- if (tmp)
- ptr += sprintf(build_buf + ptr,
- "host:%s ", tmp);
- else
- ptr += sprintf(build_buf + ptr,
- "host:vxWorks ");
-
- /*
- * The following parameters are only needed if 'bootdev'
- * is an ethernet device, otherwise they are optional.
- */
- tmp = getenv("ipaddr");
- if (tmp) {
- ptr += sprintf(build_buf + ptr, "e=%s", tmp);
- tmp = getenv("netmask");
- if (tmp) {
- u32 mask = getenv_ip("netmask").s_addr;
- ptr += sprintf(build_buf + ptr,
- ":%08x ", ntohl(mask));
- } else {
- ptr += sprintf(build_buf + ptr, " ");
- }
- }
-
- tmp = getenv("serverip");
- if (tmp)
- ptr += sprintf(build_buf + ptr, "h=%s ", tmp);
-
- tmp = getenv("gatewayip");
- if (tmp)
- ptr += sprintf(build_buf + ptr, "g=%s ", tmp);
-
- tmp = getenv("hostname");
- if (tmp)
- ptr += sprintf(build_buf + ptr, "tn=%s ", tmp);
-
- tmp = getenv("othbootargs");
- if (tmp) {
- strcpy(build_buf + ptr, tmp);
- ptr += strlen(tmp);
- }
-
- memcpy((void *)bootaddr, build_buf,
- max(strlen(build_buf), (size_t)255));
- flush_cache(bootaddr, max(strlen(build_buf),
- (size_t)255));
- }
-
- printf("## Using bootline (@ 0x%lx): %s\n", bootaddr,
- (char *)bootaddr);
- }
-
-#ifdef CONFIG_X86
- /*
- * Since E820 information is critical to the kernel, if we don't
- * specify these in the environments, use a default one.
- */
- tmp = getenv("e820data");
- if (tmp)
- data = (struct e820entry *)simple_strtoul(tmp, NULL, 16);
- else
- data = (struct e820entry *)VXWORKS_E820_DATA_ADDR;
- tmp = getenv("e820info");
- if (tmp)
- info = (struct e820info *)simple_strtoul(tmp, NULL, 16);
- else
- info = (struct e820info *)VXWORKS_E820_INFO_ADDR;
-
- memset(info, 0, sizeof(struct e820info));
- info->sign = E820_SIGNATURE;
- info->entries = install_e820_map(E820MAX, data);
- info->addr = (info->entries - 1) * sizeof(struct e820entry) +
- VXWORKS_E820_DATA_ADDR;
-#endif
-
- /*
- * If the data at the load address is an elf image, then
- * treat it like an elf image. Otherwise, assume that it is a
- * binary image.
- */
- if (valid_elf_image(addr))
- addr = load_elf_image_shdr(addr);
- else
- puts("## Not an ELF image, assuming binary\n");
-
- printf("## Starting vxWorks at 0x%08lx ...\n", addr);
-
- dcache_disable();
-#ifdef CONFIG_X86
- /* VxWorks on x86 uses stack to pass parameters */
- ((asmlinkage void (*)(int))addr)(0);
-#else
- ((void (*)(int))addr)(0);
-#endif
-
- puts("## vxWorks terminated\n");
-
- return 1;
-}
-
-U_BOOT_CMD(
- bootelf, 3, 0, do_bootelf,
- "Boot from an ELF image in memory",
- "[-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."
-);
generated by cgit v1.1 at 2024-11-10 21:48:43 +0000