Dead code removal.

Kill off use of etherboot.h outside drivers/net.

1 files changed, 0 insertions, 699 deletions

diff --git a/src/core/elf_loader.c b/src/core/elf_loader.c
deleted file mode 100644
index 85b60e8a3..000000000
--- a/src/core/elf_loader.c
+++ /dev/null
@@ -1,699 +0,0 @@
-#include "elf.h"
-
-#ifndef ELF_CHECK_ARCH
-#error ELF_CHECK_ARCH not defined
-#endif
-
-#define ELF_NOTES 1
-#define ELF_DEBUG 0
-
-struct elf_state
-{
-	union {
-		Elf32_Ehdr elf32;
-		Elf64_Ehdr elf64;
-	} e;
-	union {
-		Elf32_Phdr phdr32[1];
-		Elf64_Phdr phdr64[1];
-		unsigned char dummy[1024];
-	} p;
-	unsigned long curaddr;
-	int segment;		/* current segment number, -1 for none */
-	uint64_t loc;		/* start offset of current block */
-	uint64_t skip;		/* padding to be skipped to current segment */
-	unsigned long toread;	/* remaining data to be read in the segment */
-#if ELF_NOTES
-	int check_ip_checksum;
-	uint16_t ip_checksum;
-	unsigned long ip_checksum_offset;
-#endif
-};
-
-static struct elf_state estate;
-
-static unsigned long find_segment(unsigned long size, unsigned long align)
-{
-	unsigned i;
-	/* Verify I have a power of 2 alignment */
-	if (align & (align - 1)) {
-		return ULONG_MAX;
-	}
-	for(i = 0; i < meminfo.map_count; i++) {
-		unsigned long r_start, r_end;
-		if (meminfo.map[i].type != E820_RAM)
-			continue;
-		if ((meminfo.map[i].addr + meminfo.map[i].size) > ULONG_MAX) {
-			continue;
-		}
-		r_start = meminfo.map[i].addr;
-		r_end = r_start + meminfo.map[i].size;
-		/* Don't allow the segment to overlap etherboot */
-		if ((r_end > virt_to_phys(_text)) && (r_start < virt_to_phys(_text))) {
-			r_end = virt_to_phys(_text);
-		}
-		if ((r_start > virt_to_phys(_text)) && (r_start < virt_to_phys(_end))) {
-			r_start = virt_to_phys(_end);
-		}
-		/* Don't allow the segment to overlap the heap */
-		if ((r_end > heap_ptr) && (r_start < heap_ptr)) {
-			r_end = heap_ptr;
-		}
-		if ((r_start > heap_ptr) && (r_start < heap_bot)) {
-			r_start = heap_ptr;
-		}
-		r_start = (r_start + align - 1) & ~(align - 1);
-		if ((r_end >= r_start) && ((r_end - r_start) >= size)) {
-			return r_start;
-		}
-	}
-	/* I did not find anything :( */
-	return ULONG_MAX;
-}
-
-static void elf_boot(unsigned long machine, unsigned long entry)
-{
-	int result;
-	struct Elf_Bhdr *hdr;
-	multiboot_boot(entry);
-	/* We cleanup unconditionally, and then reawaken the network
-	 * adapter after the longjmp.
-	 */
-	hdr = prepare_boot_params(&estate.e);
-	result = elf_start(machine, entry, virt_to_phys(hdr));
-	if (result == 0) {
-		result = -1;
-	}
-	printf("Secondary program returned %d\n", result);
-	longjmp(restart_etherboot, result);
-}
-
-#if ELF_NOTES
-static int elf_prep_segment(
-	unsigned long start __unused, unsigned long mid __unused, unsigned long end __unused,
-	unsigned long istart, unsigned long iend)
-
-{
-	if (estate.check_ip_checksum) {
-		if ((istart <= estate.ip_checksum_offset) && 
-			(iend > estate.ip_checksum_offset)) {
-			/* The checksum note is also loaded in a
-			 * PT_LOAD segment, so the computed checksum
-			 * should be 0.
-			 */
-			estate.ip_checksum = 0;
-		}
-	}
-	return 1;
-}
-#else
-#define elf_prep_segment(start, mid, end, istart, iend) (1)
-#endif
-
-
-#if ELF_NOTES
-static void process_elf_notes(unsigned char *header,
-	unsigned long offset, unsigned long length)
-{
-	unsigned char *note, *end;
-	char *program, *version;
-
-	estate.check_ip_checksum = 0;
-	note = header + offset;
-	end = note + length;
-	program = version = 0;
-	while(note < end) {
-		Elf_Nhdr *hdr;
-		unsigned char *n_name, *n_desc, *next;
-		hdr = (Elf_Nhdr *)note;
-		n_name = note + sizeof(*hdr);
-		n_desc = n_name + ((hdr->n_namesz + 3) & ~3);
-		next = n_desc + ((hdr->n_descsz + 3) & ~3);
-		if (next > end) {
-			break;
-		}
-		if ((hdr->n_namesz == sizeof(ELF_NOTE_BOOT)) && 
-			(memcmp(n_name, ELF_NOTE_BOOT, sizeof(ELF_NOTE_BOOT)) == 0)) {
-			switch(hdr->n_type) {
-			case EIN_PROGRAM_NAME:
-				if (n_desc[hdr->n_descsz -1] == 0) {
-					program = n_desc;
-				}
-				break;
-			case EIN_PROGRAM_VERSION:
-				if (n_desc[hdr->n_descsz -1] == 0) {
-					version = n_desc;
-				}
-				break;
-			case EIN_PROGRAM_CHECKSUM:
-				estate.check_ip_checksum = 1;
-				estate.ip_checksum = *((uint16_t *)n_desc);
-				/* Remember where the segment is so
-				 * I can detect segment overlaps.
-				 */
-				estate.ip_checksum_offset = n_desc - header;
-#if ELF_DEBUG
-				printf("Checksum: %hx\n", estate.ip_checksum);
-#endif
-
-				break;
-			}
-		}
-#if ELF_DEBUG
-		printf("n_type: %x n_name(%d): %s n_desc(%d): %s\n", 
-			hdr->n_type,
-			hdr->n_namesz, n_name,
-			hdr->n_descsz, n_desc);
-#endif
-		note = next;
-	}
-	if (program && version) {
-		printf("\nLoading %s version: %s\n", program, version);
-	}
-}
-#endif
-
-#ifdef	ELF_IMAGE
-static sector_t elf32_download(unsigned char *data, unsigned int len, int eof);
-static inline os_download_t elf32_probe(unsigned char *data, unsigned int len)
-{
-	unsigned long phdr_size;
-	if (len < sizeof(estate.e.elf32)) {
-		return 0;
-	}
-	memcpy(&estate.e.elf32, data, sizeof(estate.e.elf32));
-	if ((estate.e.elf32.e_ident[EI_MAG0] != ELFMAG0) ||
-		(estate.e.elf32.e_ident[EI_MAG1] != ELFMAG1) ||
-		(estate.e.elf32.e_ident[EI_MAG2] != ELFMAG2) ||
-		(estate.e.elf32.e_ident[EI_MAG3] != ELFMAG3) ||
-		(estate.e.elf32.e_ident[EI_CLASS] != ELFCLASS32) ||
-		(estate.e.elf32.e_ident[EI_DATA] != ELFDATA_CURRENT) ||
-		(estate.e.elf32.e_ident[EI_VERSION] != EV_CURRENT) ||
-		(	(estate.e.elf32.e_type != ET_EXEC) &&
-			(estate.e.elf32.e_type != ET_DYN)) ||
-		(estate.e.elf32.e_version != EV_CURRENT) ||
-		(estate.e.elf32.e_ehsize != sizeof(Elf32_Ehdr)) ||
-		(estate.e.elf32.e_phentsize != sizeof(Elf32_Phdr)) ||
-		!ELF_CHECK_ARCH(estate.e.elf32)) {
-		return 0;
-	}
-	printf("(ELF");
-	elf_freebsd_probe();
-	printf(")... ");
-	phdr_size = estate.e.elf32.e_phnum * estate.e.elf32.e_phentsize;
-	if (estate.e.elf32.e_phoff + phdr_size > len) {
-		printf("ELF header outside first block\n");
-		return dead_download;
-	}
-	if (phdr_size > sizeof(estate.p.dummy)) {
-		printf("Program header too big\n");
-		return dead_download;
-	}
-	memcpy(&estate.p.phdr32, data + estate.e.elf32.e_phoff, phdr_size);
-	if (estate.e.elf32.e_type == ET_DYN) {
-		Elf32_Addr min, max, base_addr, delta, align;
-		min = -1;
-		max = 0;
-		align = 1;
-		for(estate.segment = 0; estate.segment < estate.e.elf32.e_phnum; estate.segment++) {
-			Elf32_Addr val;
-			if (estate.p.phdr32[estate.segment].p_type != PT_LOAD)
-				continue;
-			val = estate.p.phdr32[estate.segment].p_paddr;
-			if (val < min) {
-				min = val;
-			}
-			val += estate.p.phdr32[estate.segment].p_memsz;
-			if (val > max) {
-				max = val;
-			}
-			if (estate.p.phdr32[estate.segment].p_align > align) {
-				align = estate.p.phdr32[estate.segment].p_align;
-			}
-		}
-		if (align & (align -1)) {
-			printf("ELF base address alignment is not a power of 2\n");
-			return dead_download;
-		}
-		base_addr = find_segment(max - min, align);
-		if (base_addr == ULONG_MAX) {
-			printf("ELF base address not available for size %ld\n", max - min);
-			return dead_download;
-		}
-		/* Compute the change in base address and fix up the addresses */
-		delta = base_addr - min;
-		for(estate.segment = 0; estate.segment < estate.e.elf32.e_phnum; estate.segment++) {
-			/* Change the base address of the object to load */
-			estate.p.phdr32[estate.segment].p_paddr += delta;
-		}
-		estate.e.elf32.e_entry += delta;
-	}
-#if ELF_NOTES
-	/* Load ELF notes from the image */
-	estate.check_ip_checksum = 0;
-	for(estate.segment = 0; estate.segment < estate.e.elf32.e_phnum; estate.segment++) {
-		if (estate.p.phdr32[estate.segment].p_type != PT_NOTE)
-			continue;
-		if (estate.p.phdr32[estate.segment].p_offset + estate.p.phdr32[estate.segment].p_filesz > len) {
-			/* Ignore ELF notes outside of the first block */
-			continue;
-		}
-		process_elf_notes(data, 
-			estate.p.phdr32[estate.segment].p_offset, estate.p.phdr32[estate.segment].p_filesz);
-	}
-#endif
-	/* Check for Etherboot related limitations.  Memory
-	 * between _text and _end is not allowed.
-	 * Reasons: the Etherboot code/data area.
-	 */
-	for (estate.segment = 0; estate.segment < estate.e.elf32.e_phnum; estate.segment++) {
-		unsigned long start, mid, end, istart, iend;
-		if (estate.p.phdr32[estate.segment].p_type != PT_LOAD)
-			continue;
-
-		elf_freebsd_fixup_segment();
-
-		start = estate.p.phdr32[estate.segment].p_paddr;
-		mid = start + estate.p.phdr32[estate.segment].p_filesz;
-		end = start + estate.p.phdr32[estate.segment].p_memsz;
-		istart = estate.p.phdr32[estate.segment].p_offset;
-		iend = istart + estate.p.phdr32[estate.segment].p_filesz;
-		if (!prep_segment(start, mid, end, istart, iend)) {
-			return dead_download;
-		}
-		if (!elf_prep_segment(start, mid, end, istart, iend)) {
-	                return dead_download;
-		}
-	}
-	estate.segment = -1;
-	estate.loc = 0;
-	estate.skip = 0;
-	estate.toread = 0;
-	multiboot_init();
-	return elf32_download;
-}
-
-static sector_t elf32_download(unsigned char *data, unsigned int len, int eof)
-{
-	unsigned long skip_sectors = 0;
-	unsigned int offset;	/* working offset in the current data block */
-	int i;
-
-	offset = 0;
-	do {
-		if (estate.segment != -1) {
-			if (estate.skip) {
-				if (estate.skip >= len - offset) {
-					estate.skip -= len - offset;
-					break;
-				}
-				offset += estate.skip;
-				estate.skip = 0;
-			}
-			
-			if (estate.toread) {
-				unsigned int cplen;
-				cplen = len - offset;
-				if (cplen >= estate.toread) {
-					cplen = estate.toread;
-				}
-				memcpy(phys_to_virt(estate.curaddr), data+offset, cplen);
-				estate.curaddr += cplen;
-				estate.toread -= cplen;
-				offset += cplen;
-				if (estate.toread)
-					break;
-				elf_freebsd_find_segment_end();
-			}
-		}
-		
-		/* Data left, but current segment finished - look for the next
-		 * segment (in file offset order) that needs to be loaded. 
-		 * We can only seek forward, so select the program headers,
-		 * in the correct order.
-		 */
-		estate.segment = -1;
-		for (i = 0; i < estate.e.elf32.e_phnum; i++) {
-			if (estate.p.phdr32[i].p_type != PT_LOAD)
-				continue;
-			if (estate.p.phdr32[i].p_filesz == 0)
-				continue;
-			if (estate.p.phdr32[i].p_offset < estate.loc + offset)
-				continue;	/* can't go backwards */
-			if ((estate.segment != -1) &&
-				(estate.p.phdr32[i].p_offset >= estate.p.phdr32[estate.segment].p_offset))
-				continue;	/* search minimum file offset */
-			estate.segment = i;
-		}
-		if (estate.segment == -1) {
-			if (elf_freebsd_debug_loader(offset)) {
-				estate.segment = 0; /* -1 makes it not read anymore */
-				continue;
-			}
-			/* No more segments to be loaded, so just start the
-			 * kernel.  This saves a lot of network bandwidth if
-			 * debug info is in the kernel but not loaded.  */
-			goto elf_startkernel;
-			break;
-		}
-		estate.curaddr = estate.p.phdr32[estate.segment].p_paddr;
-		estate.skip    = estate.p.phdr32[estate.segment].p_offset - (estate.loc + offset);
-		estate.toread  = estate.p.phdr32[estate.segment].p_filesz;
-#if ELF_DEBUG
-		printf("PHDR %d, size %#lX, curaddr %#lX\n",
-			estate.segment, estate.toread, estate.curaddr);
-#endif
-	} while (offset < len);
-
-	estate.loc += len + (estate.skip & ~0x1ff);
-	skip_sectors = estate.skip >> 9;
-	estate.skip &= 0x1ff;
-	
-	if (eof) {
-		unsigned long entry;
-		unsigned long machine;
-elf_startkernel:
-		entry = estate.e.elf32.e_entry;
-		machine = estate.e.elf32.e_machine;
-
-#if ELF_NOTES
-		if (estate.check_ip_checksum) {
-			unsigned long bytes = 0;
-			uint16_t sum, new_sum;
-
-			sum = ipchksum(&estate.e.elf32, sizeof(estate.e.elf32));
-			bytes = sizeof(estate.e.elf32);
-#if ELF_DEBUG
-			printf("Ehdr: %hx %hx sz: %lx bytes: %lx\n",
-				sum, sum, bytes, bytes);
-#endif
-
-			new_sum = ipchksum(estate.p.phdr32, sizeof(estate.p.phdr32[0]) * estate.e.elf32.e_phnum);
-			sum = add_ipchksums(bytes, sum, new_sum);
-			bytes += sizeof(estate.p.phdr32[0]) * estate.e.elf32.e_phnum;
-#if ELF_DEBUG
-			printf("Phdr: %hx %hx sz: %lx bytes: %lx\n",
-				new_sum, sum,
-				sizeof(estate.p.phdr32[0]) * estate.e.elf32.e_phnum, bytes);
-#endif
-
-			for(i = 0; i < estate.e.elf32.e_phnum; i++) {
-				if (estate.p.phdr32[i].p_type != PT_LOAD)
-					continue;
-				new_sum = ipchksum(phys_to_virt(estate.p.phdr32[i].p_paddr),
-						estate.p.phdr32[i].p_memsz);
-				sum = add_ipchksums(bytes, sum, new_sum);
-				bytes += estate.p.phdr32[i].p_memsz;
-#if ELF_DEBUG
-			printf("seg%d: %hx %hx sz: %x bytes: %lx\n",
-				i, new_sum, sum,
-				estate.p.phdr32[i].p_memsz, bytes);
-#endif
-
-			}
-			if (estate.ip_checksum != sum) {
-				printf("\nImage checksum: %hx != computed checksum: %hx\n",
-					estate.ip_checksum, sum);
-				longjmp(restart_etherboot, -2);
-			}
-		}
-#endif
-		done(1);
-		/* Fixup the offset to the program header so you can find the program headers from
-		 * the ELF header mknbi needs this.
-		 */
-		estate.e.elf32.e_phoff = (char *)&estate.p - (char *)&estate.e;
-		elf_freebsd_boot(entry);
-		elf_boot(machine,entry);
-	}
-	return skip_sectors;
-}
-#endif /* ELF_IMAGE */
-
-#ifdef  ELF64_IMAGE
-static sector_t elf64_download(unsigned char *data, unsigned int len, int eof);
-static inline os_download_t elf64_probe(unsigned char *data, unsigned int len)
-{
-	unsigned long phdr_size;
-	if (len < sizeof(estate.e.elf64)) {
-		return 0;
-	}
-	memcpy(&estate.e.elf64, data, sizeof(estate.e.elf64));
-	if ((estate.e.elf64.e_ident[EI_MAG0] != ELFMAG0) ||
-		(estate.e.elf64.e_ident[EI_MAG1] != ELFMAG1) ||
-		(estate.e.elf64.e_ident[EI_MAG2] != ELFMAG2) ||
-		(estate.e.elf64.e_ident[EI_MAG3] != ELFMAG3) ||
-		(estate.e.elf64.e_ident[EI_CLASS] != ELFCLASS64) ||
-		(estate.e.elf64.e_ident[EI_DATA] != ELFDATA_CURRENT) ||
-		(estate.e.elf64.e_ident[EI_VERSION] != EV_CURRENT) ||
-		(	(estate.e.elf64.e_type != ET_EXEC) &&
-			(estate.e.elf64.e_type != ET_DYN)) ||
-		(estate.e.elf64.e_version != EV_CURRENT) ||
-		(estate.e.elf64.e_ehsize != sizeof(Elf64_Ehdr)) ||
-		(estate.e.elf64.e_phentsize != sizeof(Elf64_Phdr)) ||
-		!ELF_CHECK_ARCH(estate.e.elf64)) {
-		return 0;
-	}
-	printf("(ELF64)... ");
-	phdr_size = estate.e.elf64.e_phnum * estate.e.elf64.e_phentsize;
-	if (estate.e.elf64.e_phoff + phdr_size > len) {
-		printf("ELF header outside first block\n");
-                return dead_download;
-	}
-	if (phdr_size > sizeof(estate.p.dummy)) {
-		printf("Program header to big\n");
-                return dead_download;
-	}
-	if (estate.e.elf64.e_entry > ULONG_MAX) {
-		printf("ELF entry point exceeds address space\n");
-                return dead_download;
-	}
-	memcpy(&estate.p.phdr64, data + estate.e.elf64.e_phoff, phdr_size);
-	if (estate.e.elf64.e_type == ET_DYN) {
-		Elf64_Addr min, max, base_addr, delta, align;
-		min = -1;
-		max = 0;
-		align = 1;
-		for(estate.segment = 0; estate.segment < estate.e.elf64.e_phnum; estate.segment++) {
-			Elf64_Addr val;
-			if (estate.p.phdr64[estate.segment].p_type != PT_LOAD)
-				continue;
-			val = estate.p.phdr64[estate.segment].p_paddr;
-			if (val < min) {
-				min = val;
-			}
-			val += estate.p.phdr64[estate.segment].p_memsz;
-			if (val > max) {
-				max = val;
-			}
-			if (estate.p.phdr64[estate.segment].p_align > align) {
-				align = estate.p.phdr64[estate.segment].p_align;
-			}
-		}
-		if (align > ULONG_MAX) {
-			printf("ELF base address alignment exceeds address space\n");
-			return dead_download;
-		}
-		if (align & (align -1)) {
-			printf("ELF base address alignment is not a power of 2\n");
-			return dead_download;
-		}
-		if ((max - min) > ULONG_MAX) {
-			printf("ELF size exceeds address space\n");
-			return dead_download;
-		}
-		base_addr = find_segment(max - min, align);
-		if (base_addr == ULONG_MAX) {
-			printf("ELF base address not available for size %ld\n", max - min);
-			return dead_download;
-		}
-		/* Compute the change in base address and fix up the addresses */
-		delta = base_addr - min;
-		for(estate.segment = 0; estate.segment < estate.e.elf64.e_phnum; estate.segment++) {
-			/* Change the base address of the object to load */
-			estate.p.phdr64[estate.segment].p_paddr += delta;
-		}
-		estate.e.elf64.e_entry += delta;
-	}
-#if ELF_NOTES
-	/* Load ELF notes from the image */
-	estate.check_ip_checksum = 0;
-	for(estate.segment = 0; estate.segment < estate.e.elf64.e_phnum; estate.segment++) {
-		if (estate.p.phdr64[estate.segment].p_type != PT_NOTE)
-			continue;
-		if (estate.p.phdr64[estate.segment].p_offset + estate.p.phdr64[estate.segment].p_filesz > len) {
-			/* Ignore ELF notes outside of the first block */
-			continue;
-		}
-		process_elf_notes(data, 
-			estate.p.phdr64[estate.segment].p_offset, estate.p.phdr64[estate.segment].p_filesz);
-	}
-#endif
-	/* Check for Etherboot related limitations.  Memory
-	 * between _text and _end is not allowed.  
-	 * Reasons: the Etherboot code/data area.
-	 */
-	for (estate.segment = 0; estate.segment < estate.e.elf64.e_phnum; estate.segment++) {
-		unsigned long start, mid, end, istart, iend;
-		if (estate.p.phdr64[estate.segment].p_type != PT_LOAD) 
-			continue;
-		if ((estate.p.phdr64[estate.segment].p_paddr > ULONG_MAX) ||
-			((estate.p.phdr64[estate.segment].p_paddr + estate.p.phdr64[estate.segment].p_filesz) > ULONG_MAX) ||
-			((estate.p.phdr64[estate.segment].p_paddr + estate.p.phdr64[estate.segment].p_memsz) > ULONG_MAX)) {
-			printf("ELF segment exceeds address space\n");
-                	return dead_download;
-		}
-		start = estate.p.phdr64[estate.segment].p_paddr;
-		mid = start + estate.p.phdr64[estate.segment].p_filesz;
-		end = start + estate.p.phdr64[estate.segment].p_memsz;
-		istart = iend = ULONG_MAX;
-		if ((estate.p.phdr64[estate.segment].p_offset < ULONG_MAX) &&
-			((estate.p.phdr64[estate.segment].p_offset + estate.p.phdr64[estate.segment].p_filesz) < ULONG_MAX))
-		{
-			istart = estate.p.phdr64[estate.segment].p_offset;
-			iend   = istart + estate.p.phdr64[estate.segment].p_filesz;
-		} 
-		if (!prep_segment(start, mid, end, istart, iend)) {
-                	return dead_download;
-		}
-		if (!elf_prep_segment(start, mid, end, istart, iend)) {
-                	return dead_download;
-		}
-	}
-	estate.segment = -1;
-	estate.loc = 0;
-	estate.skip = 0;
-	estate.toread = 0;
-	return elf64_download;
-}
-
-static sector_t elf64_download(unsigned char *data, unsigned int len, int eof)
-{
-	unsigned long skip_sectors = 0;
-	unsigned int offset;	/* working offset in the current data block */
-	int i;
-
-	offset = 0;
-	do {
-		if (estate.segment != -1) {
-			if (estate.skip) {
-				if (estate.skip >= len - offset) {
-					estate.skip -= len - offset;
-					break;
-				}
-				offset += estate.skip;
-				estate.skip = 0;
-			}
-			
-			if (estate.toread) {
-				unsigned int cplen;
-				cplen = len - offset;
-				if (cplen >= estate.toread) {
-					cplen = estate.toread;
-				}
-				memcpy(phys_to_virt(estate.curaddr), data+offset, cplen);
-				estate.curaddr += cplen;
-				estate.toread -= cplen;
-				offset += cplen;
-				if (estate.toread)
-					break;
-			}
-		}
-		
-		/* Data left, but current segment finished - look for the next
-		 * segment (in file offset order) that needs to be loaded. 
-		 * We can only seek forward, so select the program headers,
-		 * in the correct order.
-		 */
-		estate.segment = -1;
-		for (i = 0; i < estate.e.elf64.e_phnum; i++) {
-			if (estate.p.phdr64[i].p_type != PT_LOAD)
-				continue;
-			if (estate.p.phdr64[i].p_filesz == 0)
-				continue;
-			if (estate.p.phdr64[i].p_offset < estate.loc + offset)
-				continue;	/* can't go backwards */
-			if ((estate.segment != -1) &&
-				(estate.p.phdr64[i].p_offset >= estate.p.phdr64[estate.segment].p_offset))
-				continue;	/* search minimum file offset */
-			estate.segment = i;
-		}
-		if (estate.segment == -1) {
-			/* No more segments to be loaded, so just start the
-			 * kernel.  This saves a lot of network bandwidth if
-			 * debug info is in the kernel but not loaded.  */
-			goto elf_startkernel;
-			break;
-		}
-		estate.curaddr = estate.p.phdr64[estate.segment].p_paddr;
-		estate.skip    = estate.p.phdr64[estate.segment].p_offset - (estate.loc + offset);
-		estate.toread  = estate.p.phdr64[estate.segment].p_filesz;
-#if ELF_DEBUG
-		printf("PHDR %d, size %#lX, curaddr %#lX\n",
-			estate.segment, estate.toread, estate.curaddr);
-#endif
-	} while (offset < len);
-	
-	estate.loc += len + (estate.skip & ~0x1ff);
-	skip_sectors = estate.skip >> 9;
-	estate.skip &= 0x1ff;
-	
-	if (eof) {
-		unsigned long entry;
-		unsigned long machine;
-elf_startkernel:
-		entry = estate.e.elf64.e_entry;
-		machine = estate.e.elf64.e_machine;
-#if ELF_NOTES
-		if (estate.check_ip_checksum) {
-			unsigned long bytes = 0;
-			uint16_t sum, new_sum;
-
-			sum = ipchksum(&estate.e.elf64, sizeof(estate.e.elf64));
-			bytes = sizeof(estate.e.elf64);
-#if ELF_DEBUG
-			printf("Ehdr: %hx %hx sz: %lx bytes: %lx\n",
-				sum, sum, bytes, bytes);
-#endif
-
-			new_sum = ipchksum(estate.p.phdr64, sizeof(estate.p.phdr64[0]) * estate.e.elf64.e_phnum);
-			sum = add_ipchksums(bytes, sum, new_sum);
-			bytes += sizeof(estate.p.phdr64[0]) * estate.e.elf64.e_phnum;
-#if ELF_DEBUG
-			printf("Phdr: %hx %hx sz: %lx bytes: %lx\n",
-				new_sum, sum,
-				sizeof(estate.p.phdr64[0]) * estate.e.elf64.e_phnum, bytes);
-#endif
-
-			for(i = 0; i < estate.e.elf64.e_phnum; i++) {
-				if (estate.p.phdr64[i].p_type != PT_LOAD)
-					continue;
-				new_sum = ipchksum(phys_to_virt(estate.p.phdr64[i].p_paddr),
-						estate.p.phdr64[i].p_memsz);
-				sum = add_ipchksums(bytes, sum, new_sum);
-				bytes += estate.p.phdr64[i].p_memsz;
-#if ELF_DEBUG
-			printf("seg%d: %hx %hx sz: %x bytes: %lx\n",
-				i, new_sum, sum,
-				estate.p.phdr64[i].p_memsz, bytes);
-#endif
-
-			}
-			if (estate.ip_checksum != sum) {
-				printf("\nImage checksum: %hx != computed checksum: %hx\n",
-					estate.ip_checksum, sum);
-				longjmp(restart_etherboot, -2);
-			}
-		}
-#endif
-		done(1);
-		/* Fixup the offset to the program header so you can find the program headers from
-		 * the ELF header mknbi needs this.
-		 */
-		estate.e.elf64.e_phoff = (char *)&estate.p - (char *)&estate.e;
-		elf_boot(machine,entry);
-	}
-	return skip_sectors;
-}
-
-#endif /* ELF64_IMAGE */