cmd/elf.c - github/trini/u-boot - Gitiles

 // SPDX-License-Identifier: BSD-2-Clause
 /*
  * Copyright (c) 2001 William L. Pitts
  * All rights reserved.
  */

 #include <command.h>
 #include <cpu_func.h>
 #include <elf.h>
 #include <env.h>
 #include <image.h>
 #include <log.h>
 #ifdef CONFIG_CMD_ELF_BOOTVX
 #include <net.h>
 #include <vxworks.h>
 #endif
 #ifdef CONFIG_X86
 #include <vesa.h>
 #include <asm/cache.h>
 #include <asm/e820.h>
 #include <linux/linkage.h>
 #endif

 /* Interpreter command to boot an arbitrary ELF image from memory */
 int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 #if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
 	struct bootm_headers img = {0};
 	unsigned long fdt_addr = 0; /* Address of the FDT */
 #endif
 	unsigned long addr; /* Address of the ELF image */
 	unsigned long rc; /* Return value from user code */
 	int rcode = CMD_RET_SUCCESS;
 	Bootelf_flags flags = {0};

 	/* Consume 'bootelf' */
 	argc--; argv++;

 	/* Check for [-p|-s] flag. */
 	if (argc >= 1 && (argv[0][0] == '-' && \
 				(argv[0][1] == 'p' || argv[0][1] == 's'))) {
 		if (argv[0][1] == 'p')
 			flags.phdr = 1;
 		log_debug("Using ELF header format %s\n",
 				flags.phdr ? "phdr" : "shdr");
 		/* Consume flag. */
 		argc--; argv++;
 	}

 #if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
 	/* Check for [-d fdt_addr_r] option. */
 	if ((argc >= 2) && (argv[0][0] == '-') && (argv[0][1] == 'd')) {
 		if (strict_strtoul(argv[1], 16, &fdt_addr) != 0)
 			return CMD_RET_USAGE;
 		/* Consume option. */
 		argc -= 2;
 		argv += 2;
 	}
 #endif

 	/* Check for address. */
 	if (argc >= 1 && strict_strtoul(argv[0], 16, &addr) != -EINVAL) {
 		/* Consume address */
 		argc--; argv++;
 	} else
 		addr = image_load_addr;

 #if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
 	if (fdt_addr) {
 		log_debug("Setting up FDT at 0x%08lx ...\n", fdt_addr);
 		flush();

 		fdt_set_totalsize((void *)fdt_addr,
 				fdt_totalsize(fdt_addr) + CONFIG_SYS_FDT_PAD);
 		if (image_setup_libfdt(&img, (void *)fdt_addr, false))
 			return 1;
 	}
 #endif

 	if (env_get_autostart()) {
 		flags.autostart = 1;
 		log_debug("Starting application at 0x%08lx ...\n", addr);
 		flush();
 	}

 	/*
 	 * pass address parameter as argv[0] (aka command name),
 	 * and all remaining arguments
 	 */
 	rc = bootelf(addr, flags, argc, argv);
 	if (rc != 0)
 		rcode = CMD_RET_FAILURE;

 	if (flags.autostart)
 	{
 		if (ENOEXEC == errno)
 			log_err("Invalid ELF image\n");
 		else
 			log_debug("## Application terminated, rc = 0x%lx\n", rc);
 	}

 	return rcode;
 }

 #ifdef CONFIG_CMD_ELF_BOOTVX
 /*
  * 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(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	unsigned long addr; /* Address of image */
 	unsigned long bootaddr = 0; /* 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
 	ulong base;
 	struct e820_info *info;
 	struct e820_entry *data;
 	struct efi_gop_info *gop;
 	struct vesa_mode_info *vesa = &mode_info.vesa;
 #endif

 	/*
 	 * Check the loadaddr variable.
 	 * If we don't know where the image is then we're done.
 	 */
 	if (argc < 2)
 		addr = image_load_addr;
 	else
 		addr = hextoul(argv[1], NULL);

 #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_SYS_VXWORKS_MAC_PTR)
 	tmp = (char *)CONFIG_SYS_VXWORKS_MAC_PTR;
 	eth_env_get_enetaddr("ethaddr", (uchar *)build_buf);
 	memcpy(tmp, build_buf, 6);
 #else
 	puts("## Ethernet MAC address not copied to NV RAM\n");
 #endif

 #ifdef CONFIG_X86
 	/*
 	 * Get VxWorks's physical memory base address from environment,
 	 * if we don't specify it in the environment, use a default one.
 	 */
 	base = env_get_hex("vx_phys_mem_base", VXWORKS_PHYS_MEM_BASE);
 	data = (struct e820_entry *)(base + E820_DATA_OFFSET);
 	info = (struct e820_info *)(base + E820_INFO_OFFSET);

 	memset(info, 0, sizeof(struct e820_info));
 	info->sign = E820_SIGNATURE;
 	info->entries = install_e820_map(E820MAX, data);
 	info->addr = (info->entries - 1) * sizeof(struct e820_entry) +
 		     E820_DATA_OFFSET;

 	/*
 	 * Explicitly clear the bootloader image size otherwise if memory
 	 * at this offset happens to contain some garbage data, the final
 	 * available memory size for the kernel is insane.
 	 */
 	*(u32 *)(base + BOOT_IMAGE_SIZE_OFFSET) = 0;

 	/*
 	 * Prepare compatible framebuffer information block.
 	 * The VESA mode has to be 32-bit RGBA.
 	 */
 	if (vesa->x_resolution && vesa->y_resolution) {
 		gop = (struct efi_gop_info *)(base + EFI_GOP_INFO_OFFSET);
 		gop->magic = EFI_GOP_INFO_MAGIC;
 		gop->info.version = 0;
 		gop->info.width = vesa->x_resolution;
 		gop->info.height = vesa->y_resolution;
 		gop->info.pixel_format = EFI_GOT_RGBA8;
 		gop->info.pixels_per_scanline = vesa->bytes_per_scanline / 4;
 		gop->fb_base = vesa->phys_base_ptr;
 		gop->fb_size = vesa->bytes_per_scanline * vesa->y_resolution;
 	}
 #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 = env_get("bootaddr");
 	if (!tmp) {
 #ifdef CONFIG_X86
 		bootaddr = base + X86_BOOT_LINE_OFFSET;
 #else
 		printf("## VxWorks bootline address not specified\n");
 		return 1;
 #endif
 	}

 	if (!bootaddr)
 		bootaddr = hextoul(tmp, NULL);

 	/*
 	 * 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 = env_get("bootargs");
 	if (!bootline) {
 		tmp = env_get("bootdev");
 		if (tmp) {
 			strcpy(build_buf, tmp);
 			ptr = strlen(tmp);
 		} else {
 			printf("## VxWorks boot device not specified\n");
 		}

 		tmp = env_get("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 = env_get("ipaddr");
 		if (tmp) {
 			ptr += sprintf(build_buf + ptr, "e=%s", tmp);
 			tmp = env_get("netmask");
 			if (tmp) {
 				u32 mask = env_get_ip("netmask").s_addr;
 				ptr += sprintf(build_buf + ptr,
 					       ":%08x ", ntohl(mask));
 			} else {
 				ptr += sprintf(build_buf + ptr, " ");
 			}
 		}

 		tmp = env_get("serverip");
 		if (tmp)
 			ptr += sprintf(build_buf + ptr, "h=%s ", tmp);

 		tmp = env_get("gatewayip");
 		if (tmp)
 			ptr += sprintf(build_buf + ptr, "g=%s ", tmp);

 		tmp = env_get("hostname");
 		if (tmp)
 			ptr += sprintf(build_buf + ptr, "tn=%s ", tmp);

 		tmp = env_get("othbootargs");
 		if (tmp) {
 			strcpy(build_buf + ptr, tmp);
 			ptr += strlen(tmp);
 		}

 		bootline = build_buf;
 	}

 	memcpy((void *)bootaddr, bootline, max(strlen(bootline), (size_t)255));
 	flush_cache(bootaddr, max(strlen(bootline), (size_t)255));
 	printf("## Using bootline (@ 0x%lx): %s\n", bootaddr, (char *)bootaddr);

 	/*
 	 * 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_phdr(addr);
 	else
 		puts("## Not an ELF image, assuming binary\n");

 	printf("## Starting vxWorks at 0x%08lx ...\n", addr);
 	flush();

 	dcache_disable();
 #if defined(CONFIG_ARM64) && defined(CONFIG_ARMV8_PSCI)
 	armv8_setup_psci();
 	smp_kick_all_cpus();
 #endif

 #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;
 }
 #endif

 U_BOOT_CMD(
 	bootelf, CONFIG_SYS_MAXARGS, 0, do_bootelf,
 	"Boot from an ELF image in memory",
 	"[-p|-s] "
 #if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
 	"[-d fdt_addr_r] "
 #endif
 	"[address]\n"
 	"\t- load ELF image at [address] via program headers (-p)\n"
 	"\t  or via section headers (-s)\n"
 #if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
 	"\t- setup FDT image at [fdt_addr_r] (-d)"
 #endif
 );

 #ifdef CONFIG_CMD_ELF_BOOTVX
 U_BOOT_CMD(
 	bootvx, 2, 0, do_bootvx,
 	"Boot vxWorks from an ELF image",
 	" [address] - load address of vxWorks ELF image."
 );
 #endif
	// SPDX-License-Identifier: BSD-2-Clause
	/*
	* Copyright (c) 2001 William L. Pitts
	* All rights reserved.
	*/

	#include <command.h>
	#include <cpu_func.h>
	#include <elf.h>
	#include <env.h>
	#include <image.h>
	#include <log.h>
	#ifdef CONFIG_CMD_ELF_BOOTVX
	#include <net.h>
	#include <vxworks.h>
	#endif
	#ifdef CONFIG_X86
	#include <vesa.h>
	#include <asm/cache.h>
	#include <asm/e820.h>
	#include <linux/linkage.h>
	#endif

	/* Interpreter command to boot an arbitrary ELF image from memory */
	int do_bootelf(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
	{
	#if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
	struct bootm_headers img = {0};
	unsigned long fdt_addr = 0; /* Address of the FDT */
	#endif
	unsigned long addr; /* Address of the ELF image */
	unsigned long rc; /* Return value from user code */
	int rcode = CMD_RET_SUCCESS;
	Bootelf_flags flags = {0};

	/* Consume 'bootelf' */
	argc--; argv++;

	/* Check for [-p\|-s] flag. */
	if (argc >= 1 && (argv[0][0] == '-' && \
	(argv[0][1] == 'p' \|\| argv[0][1] == 's'))) {
	if (argv[0][1] == 'p')
	flags.phdr = 1;
	log_debug("Using ELF header format %s\n",
	flags.phdr ? "phdr" : "shdr");
	/* Consume flag. */
	argc--; argv++;
	}

	#if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
	/* Check for [-d fdt_addr_r] option. */
	if ((argc >= 2) && (argv[0][0] == '-') && (argv[0][1] == 'd')) {
	if (strict_strtoul(argv[1], 16, &fdt_addr) != 0)
	return CMD_RET_USAGE;
	/* Consume option. */
	argc -= 2;
	argv += 2;
	}
	#endif

	/* Check for address. */
	if (argc >= 1 && strict_strtoul(argv[0], 16, &addr) != -EINVAL) {
	/* Consume address */
	argc--; argv++;
	} else
	addr = image_load_addr;

	#if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
	if (fdt_addr) {
	log_debug("Setting up FDT at 0x%08lx ...\n", fdt_addr);
	flush();

	fdt_set_totalsize((void *)fdt_addr,
	fdt_totalsize(fdt_addr) + CONFIG_SYS_FDT_PAD);
	if (image_setup_libfdt(&img, (void *)fdt_addr, false))
	return 1;
	}
	#endif

	if (env_get_autostart()) {
	flags.autostart = 1;
	log_debug("Starting application at 0x%08lx ...\n", addr);
	flush();
	}

	/*
	* pass address parameter as argv[0] (aka command name),
	* and all remaining arguments
	*/
	rc = bootelf(addr, flags, argc, argv);
	if (rc != 0)
	rcode = CMD_RET_FAILURE;

	if (flags.autostart)
	{
	if (ENOEXEC == errno)
	log_err("Invalid ELF image\n");
	else
	log_debug("## Application terminated, rc = 0x%lx\n", rc);
	}

	return rcode;
	}

	#ifdef CONFIG_CMD_ELF_BOOTVX
	/*
	* 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(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
	{
	unsigned long addr; /* Address of image */
	unsigned long bootaddr = 0; /* 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
	ulong base;
	struct e820_info *info;
	struct e820_entry *data;
	struct efi_gop_info *gop;
	struct vesa_mode_info *vesa = &mode_info.vesa;
	#endif

	/*
	* Check the loadaddr variable.
	* If we don't know where the image is then we're done.
	*/
	if (argc < 2)
	addr = image_load_addr;
	else
	addr = hextoul(argv[1], NULL);

	#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_SYS_VXWORKS_MAC_PTR)
	tmp = (char *)CONFIG_SYS_VXWORKS_MAC_PTR;
	eth_env_get_enetaddr("ethaddr", (uchar *)build_buf);
	memcpy(tmp, build_buf, 6);
	#else
	puts("## Ethernet MAC address not copied to NV RAM\n");
	#endif

	#ifdef CONFIG_X86
	/*
	* Get VxWorks's physical memory base address from environment,
	* if we don't specify it in the environment, use a default one.
	*/
	base = env_get_hex("vx_phys_mem_base", VXWORKS_PHYS_MEM_BASE);
	data = (struct e820_entry *)(base + E820_DATA_OFFSET);
	info = (struct e820_info *)(base + E820_INFO_OFFSET);

	memset(info, 0, sizeof(struct e820_info));
	info->sign = E820_SIGNATURE;
	info->entries = install_e820_map(E820MAX, data);
	info->addr = (info->entries - 1) * sizeof(struct e820_entry) +
	E820_DATA_OFFSET;

	/*
	* Explicitly clear the bootloader image size otherwise if memory
	* at this offset happens to contain some garbage data, the final
	* available memory size for the kernel is insane.
	*/
	(u32 )(base + BOOT_IMAGE_SIZE_OFFSET) = 0;

	/*
	* Prepare compatible framebuffer information block.
	* The VESA mode has to be 32-bit RGBA.
	*/
	if (vesa->x_resolution && vesa->y_resolution) {
	gop = (struct efi_gop_info *)(base + EFI_GOP_INFO_OFFSET);
	gop->magic = EFI_GOP_INFO_MAGIC;
	gop->info.version = 0;
	gop->info.width = vesa->x_resolution;
	gop->info.height = vesa->y_resolution;
	gop->info.pixel_format = EFI_GOT_RGBA8;
	gop->info.pixels_per_scanline = vesa->bytes_per_scanline / 4;
	gop->fb_base = vesa->phys_base_ptr;
	gop->fb_size = vesa->bytes_per_scanline * vesa->y_resolution;
	}
	#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 = env_get("bootaddr");
	if (!tmp) {
	#ifdef CONFIG_X86
	bootaddr = base + X86_BOOT_LINE_OFFSET;
	#else
	printf("## VxWorks bootline address not specified\n");
	return 1;
	#endif
	}

	if (!bootaddr)
	bootaddr = hextoul(tmp, NULL);

	/*
	* 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 = env_get("bootargs");
	if (!bootline) {
	tmp = env_get("bootdev");
	if (tmp) {
	strcpy(build_buf, tmp);
	ptr = strlen(tmp);
	} else {
	printf("## VxWorks boot device not specified\n");
	}

	tmp = env_get("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 = env_get("ipaddr");
	if (tmp) {
	ptr += sprintf(build_buf + ptr, "e=%s", tmp);
	tmp = env_get("netmask");
	if (tmp) {
	u32 mask = env_get_ip("netmask").s_addr;
	ptr += sprintf(build_buf + ptr,
	":%08x ", ntohl(mask));
	} else {
	ptr += sprintf(build_buf + ptr, " ");
	}
	}

	tmp = env_get("serverip");
	if (tmp)
	ptr += sprintf(build_buf + ptr, "h=%s ", tmp);

	tmp = env_get("gatewayip");
	if (tmp)
	ptr += sprintf(build_buf + ptr, "g=%s ", tmp);

	tmp = env_get("hostname");
	if (tmp)
	ptr += sprintf(build_buf + ptr, "tn=%s ", tmp);

	tmp = env_get("othbootargs");
	if (tmp) {
	strcpy(build_buf + ptr, tmp);
	ptr += strlen(tmp);
	}

	bootline = build_buf;
	}

	memcpy((void *)bootaddr, bootline, max(strlen(bootline), (size_t)255));
	flush_cache(bootaddr, max(strlen(bootline), (size_t)255));
	printf("## Using bootline (@ 0x%lx): %s\n", bootaddr, (char *)bootaddr);

	/*
	* 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_phdr(addr);
	else
	puts("## Not an ELF image, assuming binary\n");

	printf("## Starting vxWorks at 0x%08lx ...\n", addr);
	flush();

	dcache_disable();
	#if defined(CONFIG_ARM64) && defined(CONFIG_ARMV8_PSCI)
	armv8_setup_psci();
	smp_kick_all_cpus();
	#endif

	#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;
	}
	#endif

	U_BOOT_CMD(
	bootelf, CONFIG_SYS_MAXARGS, 0, do_bootelf,
	"Boot from an ELF image in memory",
	"[-p\|-s] "
	#if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
	"[-d fdt_addr_r] "
	#endif
	"[address]\n"
	"\t- load ELF image at [address] via program headers (-p)\n"
	"\t or via section headers (-s)\n"
	#if CONFIG_IS_ENABLED(CMD_ELF_FDT_SETUP)
	"\t- setup FDT image at [fdt_addr_r] (-d)"
	#endif
	);

	#ifdef CONFIG_CMD_ELF_BOOTVX
	U_BOOT_CMD(
	bootvx, 2, 0, do_bootvx,
	"Boot vxWorks from an ELF image",
	" [address] - load address of vxWorks ELF image."
	);
	#endif