1 files changed, 0 insertions, 537 deletions

diff --git a/qemu/roms/openbios/libopenbios/elf_load.c b/qemu/roms/openbios/libopenbios/elf_load.c
deleted file mode 100644
index 9c7850e11..000000000
--- a/qemu/roms/openbios/libopenbios/elf_load.c
+++ /dev/null
@@ -1,537 +0,0 @@
-/* ELF Boot loader
- * As we have seek, this implementation can be straightforward.
- * 2003-07 by SONE Takeshi
- */
-
-#include "config.h"
-#include "kernel/kernel.h"
-#include "libc/diskio.h"
-#include "arch/common/elf_boot.h"
-#include "libopenbios/elf_load.h"
-#include "libopenbios/sys_info.h"
-#include "libopenbios/ipchecksum.h"
-#include "libopenbios/bindings.h"
-#include "libopenbios/ofmem.h"
-#define printf printk
-#define debug printk
-
-#define DEBUG		0
-
-#define MAX_HEADERS	0x20
-#define BS		0x100	/* smallest step used when looking for the ELF header */
-
-#ifdef CONFIG_PPC
-extern void             flush_icache_range( char *start, char *stop );
-#endif
-
-/* FreeBSD and possibly others mask the high 8 bits */
-#define addr_fixup(addr) ((addr) & 0x00ffffff)
-
-static char *image_name, *image_version;
-static int fd;
-
-/* Note: avoid name collision with platforms which have their own version of calloc() */
-static void *ob_calloc(size_t nmemb, size_t size)
-{
-    size_t alloc_size = nmemb * size;
-    void *mem;
-
-    if (alloc_size < nmemb || alloc_size < size) {
-        printf("calloc overflow: %u, %u\n", nmemb, size);
-        return NULL;
-    }
-
-    mem = malloc(alloc_size);
-    memset(mem, 0, alloc_size);
-
-    return mem;
-}
-
-static int check_mem_ranges(struct sys_info *info,
-	Elf_phdr *phdr, int phnum)
-{
-    int i, j;
-    unsigned long start, end;
-    unsigned long prog_start, prog_end;
-    struct memrange *mem;
-
-    prog_start = virt_to_phys(&_start);
-    prog_end = virt_to_phys(&_end);
-
-    for (i = 0; i < phnum; i++) {
-	if (phdr[i].p_type != PT_LOAD)
-	    continue;
-	start = addr_fixup(phdr[i].p_paddr);
-	end = start + phdr[i].p_memsz;
-	if (start < prog_start && end > prog_start)
-	    goto conflict;
-	if (start < prog_end && end > prog_end)
-	    goto conflict;
-	mem=info->memrange;
-	for (j = 0; j < info->n_memranges; j++) {
-	    if (mem[j].base <= start && mem[j].base + mem[j].size >= end)
-		break;
-	}
-	if (j >= info->n_memranges)
-	    goto badseg;
-    }
-    return 1;
-
-conflict:
-    printf("%s occupies [%#lx-%#lx]\n", program_name, prog_start, prog_end);
-
-badseg:
-    printf("Segment %d [%#lx-%#lx] doesn't fit into memory\n", i, start, end-1);
-    return 0;
-}
-
-static unsigned long process_image_notes(Elf_phdr *phdr, int phnum,
-                                         unsigned short *sum_ptr,
-                                         unsigned int offset)
-{
-    int i;
-    char *buf = NULL;
-    int retval = 0;
-    unsigned long addr, end;
-    Elf_Nhdr *nhdr;
-    const char *name;
-    void *desc;
-
-    for (i = 0; i < phnum; i++) {
-	if (phdr[i].p_type != PT_NOTE)
-	    continue;
-	buf = malloc(phdr[i].p_filesz);
-	seek_io(fd, offset + phdr[i].p_offset);
-	if ((size_t)read_io(fd, buf, phdr[i].p_filesz) != phdr[i].p_filesz) {
-	    printf("Can't read note segment\n");
-	    goto out;
-	}
-	addr = (unsigned long) buf;
-	end = addr + phdr[i].p_filesz;
-	while (addr < end) {
-	    nhdr = (Elf_Nhdr *) addr;
-	    addr += sizeof(Elf_Nhdr);
-	    name = (const char *) addr;
-	    addr += (nhdr->n_namesz+3) & ~3;
-	    desc = (void *) addr;
-	    addr += (nhdr->n_descsz+3) & ~3;
-
-	    if (nhdr->n_namesz==sizeof(ELF_NOTE_BOOT)
-		    && memcmp(name, ELF_NOTE_BOOT, sizeof(ELF_NOTE_BOOT))==0) {
-		if (nhdr->n_type == EIN_PROGRAM_NAME) {
-		    image_name = ob_calloc(1, nhdr->n_descsz + 1);
-		    memcpy(image_name, desc, nhdr->n_descsz);
-		}
-		if (nhdr->n_type == EIN_PROGRAM_VERSION) {
-		    image_version = ob_calloc(1, nhdr->n_descsz + 1);
-		    memcpy(image_version, desc, nhdr->n_descsz);
-		}
-		if (nhdr->n_type == EIN_PROGRAM_CHECKSUM) {
-		    *sum_ptr = *(unsigned short *) desc;
-		    debug("Image checksum: %#04x\n", *sum_ptr);
-		    /* Where in the file */
-		    retval = phdr[i].p_offset
-			+ (unsigned long) desc - (unsigned long) buf;
-		}
-	    }
-	}
-    }
-out:
-    close_io(fd);
-    if (buf)
-	free(buf);
-    return retval;
-}
-
-static int load_segments(Elf_phdr *phdr, int phnum,
-                         unsigned long checksum_offset,
-                         unsigned int offset, unsigned long *bytes)
-{
-    //unsigned int start_time, time;
-    int i;
-
-    *bytes = 0;
-    // start_time = currticks();
-    for (i = 0; i < phnum; i++) {
-	if (phdr[i].p_type != PT_LOAD)
-	    continue;
-	debug("segment %d addr:" FMT_elf " file:" FMT_elf " mem:" FMT_elf " ",
-              i, addr_fixup(phdr[i].p_paddr), phdr[i].p_filesz, phdr[i].p_memsz);
-	seek_io(fd, offset + phdr[i].p_offset);
-	debug("loading... ");
-	if ((size_t)read_io(fd, phys_to_virt(addr_fixup(phdr[i].p_paddr)), phdr[i].p_filesz)
-		!= phdr[i].p_filesz) {
-	    printf("Can't read program segment %d\n", i);
-	    return 0;
-	}
-	bytes += phdr[i].p_filesz;
-	debug("clearing... ");
-	memset(phys_to_virt(addr_fixup(phdr[i].p_paddr) + phdr[i].p_filesz), 0,
-		phdr[i].p_memsz - phdr[i].p_filesz);
-	if (phdr[i].p_offset <= checksum_offset
-		&& phdr[i].p_offset + phdr[i].p_filesz >= checksum_offset+2) {
-	    debug("clearing checksum... ");
-	    memset(phys_to_virt(addr_fixup(phdr[i].p_paddr) + checksum_offset
-			- phdr[i].p_offset), 0, 2);
-	}
-	debug("ok\n");
-
-    }
-    // time = currticks() - start_time;
-    //debug("Loaded %lu bytes in %ums (%luKB/s)\n", bytes, time,
-    //	    time? bytes/time : 0);
-    debug("Loaded %lu bytes \n", *bytes);
-
-    return 1;
-}
-
-static int verify_image(Elf_ehdr *ehdr, Elf_phdr *phdr, int phnum,
-	unsigned short image_sum)
-{
-    unsigned short sum, part_sum;
-    unsigned long offset;
-    int i;
-
-    sum = 0;
-    offset = 0;
-
-    part_sum = ipchksum(ehdr, sizeof *ehdr);
-    sum = add_ipchksums(offset, sum, part_sum);
-    offset += sizeof *ehdr;
-
-    part_sum = ipchksum(phdr, phnum * sizeof(*phdr));
-    sum = add_ipchksums(offset, sum, part_sum);
-    offset += phnum * sizeof(*phdr);
-
-    for (i = 0; i < phnum; i++) {
-	if (phdr[i].p_type != PT_LOAD)
-	    continue;
-	part_sum = ipchksum(phys_to_virt(addr_fixup(phdr[i].p_paddr)), phdr[i].p_memsz);
-	sum = add_ipchksums(offset, sum, part_sum);
-	offset += phdr[i].p_memsz;
-    }
-
-    if (sum != image_sum) {
-	printf("Verify FAILED (image:%#04x vs computed:%#04x)\n",
-		image_sum, sum);
-	return 0;
-    }
-    return 1;
-}
-
-static inline unsigned padded(unsigned s)
-{
-    return (s + 3) & ~3;
-}
-
-static Elf_Bhdr *add_boot_note(Elf_Bhdr *bhdr, const char *name,
-	unsigned type, const char *desc, unsigned descsz)
-{
-    Elf_Nhdr nhdr;
-    unsigned ent_size, new_size, pad;
-    char *addr;
-
-    if (!bhdr)
-	return NULL;
-
-    nhdr.n_namesz = name? strlen(name)+1 : 0;
-    nhdr.n_descsz = descsz;
-    nhdr.n_type = type;
-    ent_size = sizeof(nhdr) + padded(nhdr.n_namesz) + padded(nhdr.n_descsz);
-    if (bhdr->b_size + ent_size > 0xffff) {
-	printf("Boot notes too big\n");
-	free(bhdr);
-	return NULL;
-    }
-    if (bhdr->b_size + ent_size > bhdr->b_checksum) {
-	do {
-	    new_size = bhdr->b_checksum * 2;
-	} while (new_size < bhdr->b_size + ent_size);
-	if (new_size > 0xffff)
-	    new_size = 0xffff;
-	debug("expanding boot note size to %u\n", new_size);
-#ifdef HAVE_REALLOC
-	bhdr = realloc(bhdr, new_size);
-	bhdr->b_checksum = new_size;
-#else
-	printf("Boot notes too big\n");
-	free(bhdr);
-	return NULL;
-#endif
-    }
-
-    addr = (char *) bhdr;
-    addr += bhdr->b_size;
-    memcpy(addr, &nhdr, sizeof(nhdr));
-    addr += sizeof(nhdr);
-
-    if (name && nhdr.n_namesz) {
-        memcpy(addr, name, nhdr.n_namesz);
-        addr += nhdr.n_namesz;
-        pad = padded(nhdr.n_namesz) - nhdr.n_namesz;
-        memset(addr, 0, pad);
-        addr += pad;
-    }
-
-    memcpy(addr, desc, nhdr.n_descsz);
-    addr += nhdr.n_descsz;
-    pad = padded(nhdr.n_descsz) - nhdr.n_descsz;
-    memset(addr, 0, pad);
-
-    bhdr->b_size += ent_size;
-    bhdr->b_records++;
-    return bhdr;
-}
-
-static inline Elf_Bhdr *add_note_string(Elf_Bhdr *bhdr, const char *name,
-	unsigned type, const char *desc)
-{
-    return add_boot_note(bhdr, name, type, desc, strlen(desc) + 1);
-}
-
-static Elf_Bhdr *build_boot_notes(struct sys_info *info, const char *cmdline)
-{
-    Elf_Bhdr *bhdr;
-
-    bhdr = malloc(256);
-    bhdr->b_signature = ELF_BHDR_MAGIC;
-    bhdr->b_size = sizeof *bhdr;
-    bhdr->b_checksum = 256; /* XXX cache the current buffer size here */
-    bhdr->b_records = 0;
-
-    if (info->firmware)
-	bhdr = add_note_string(bhdr, NULL, EBN_FIRMWARE_TYPE, info->firmware);
-    bhdr = add_note_string(bhdr, NULL, EBN_BOOTLOADER_NAME, program_name);
-    bhdr = add_note_string(bhdr, NULL, EBN_BOOTLOADER_VERSION, program_version);
-    if (cmdline)
-	bhdr = add_note_string(bhdr, NULL, EBN_COMMAND_LINE, cmdline);
-    if (!bhdr)
-	return bhdr;
-    bhdr->b_checksum = 0;
-    bhdr->b_checksum = ipchksum(bhdr, bhdr->b_size);
-    return bhdr;
-}
-
-int
-is_elf(Elf_ehdr *ehdr)
-{
-    return (ehdr->e_ident[EI_MAG0] == ELFMAG0
-        && ehdr->e_ident[EI_MAG1] == ELFMAG1
-        && ehdr->e_ident[EI_MAG2] == ELFMAG2
-        && ehdr->e_ident[EI_MAG3] == ELFMAG3
-        && ehdr->e_ident[EI_CLASS] == ARCH_ELF_CLASS
-        && ehdr->e_ident[EI_DATA] == ARCH_ELF_DATA
-        && ehdr->e_ident[EI_VERSION] == EV_CURRENT
-        && ehdr->e_type == ET_EXEC
-        && ARCH_ELF_MACHINE_OK(ehdr->e_machine)
-        && ehdr->e_version == EV_CURRENT
-        && ehdr->e_phentsize == sizeof(Elf_phdr));
-}
-
-int
-find_elf(Elf_ehdr *ehdr)
-{
-   int offset;
-
-   for (offset = 0; offset < MAX_HEADERS * BS; offset += BS) {
-        if ((size_t)read_io(fd, ehdr, sizeof ehdr) != sizeof ehdr) {
-            debug("Can't read ELF header\n");
-            return 0;
-        }
-
-        if (is_elf(ehdr)) {
-            debug("Found ELF header at offset %d\n", offset);
-	    return offset;
-        }
-
-        seek_io(fd, offset);
-    }
-
-    debug("Not a bootable ELF image\n");
-    return 0;
-}
-
-Elf_phdr *
-elf_readhdrs(int offset, Elf_ehdr *ehdr)
-{
-    unsigned long phdr_size;
-    Elf_phdr *phdr;
-
-    phdr_size = ehdr->e_phnum * sizeof(Elf_phdr);
-    phdr = malloc(phdr_size);
-    seek_io(fd, offset + ehdr->e_phoff);
-    if ((size_t)read_io(fd, phdr, phdr_size) != phdr_size) {
-	printf("Can't read program header\n");
-	return NULL;
-    }
-
-    return phdr;
-}
-
-int 
-elf_load(struct sys_info *info, ihandle_t dev, const char *cmdline, void **boot_notes)
-{
-    Elf_ehdr ehdr;
-    Elf_phdr *phdr = NULL;
-    unsigned long checksum_offset, file_size;
-    unsigned short checksum = 0;
-    int retval = -1;
-    unsigned int offset;
-
-    image_name = image_version = NULL;
-
-    /* Mark the saved-program-state as invalid */
-    feval("0 state-valid !");
-
-    fd = open_ih(dev);
-    if (fd == -1) {
-	goto out;
-    }
-
-    offset = find_elf(&ehdr);
-    if (!offset) {
-	retval = LOADER_NOT_SUPPORT;
-        goto out;
-    }
-
-#if DEBUG
-	printk("ELF header:\n");
-	printk(" ehdr.e_type    = %d\n", (int)ehdr.e_type);
-	printk(" ehdr.e_machine = %d\n", (int)ehdr.e_machine);
-	printk(" ehdr.e_version = %d\n", (int)ehdr.e_version);
-	printk(" ehdr.e_entry   = 0x%08x\n", (int)ehdr.e_entry);
-	printk(" ehdr.e_phoff   = 0x%08x\n", (int)ehdr.e_phoff);
-	printk(" ehdr.e_shoff   = 0x%08x\n", (int)ehdr.e_shoff);
-	printk(" ehdr.e_flags   = %d\n", (int)ehdr.e_flags);
-	printk(" ehdr.e_ehsize  = 0x%08x\n", (int)ehdr.e_ehsize);
-	printk(" ehdr.e_phentsize = 0x%08x\n", (int)ehdr.e_phentsize);
-	printk(" ehdr.e_phnum   = %d\n", (int)ehdr.e_phnum);
-#endif
-
-    if (ehdr.e_phnum > MAX_HEADERS) {
-        printk ("elfload: too many program headers (MAX_HEADERS)\n");
-        retval = 0;
-	goto out;
-    }
-
-    phdr = elf_readhdrs(offset, &ehdr);
-    if (!phdr)
-        goto out;
-
-    if (!check_mem_ranges(info, phdr, ehdr.e_phnum))
-	goto out;
-
-    checksum_offset = process_image_notes(phdr, ehdr.e_phnum, &checksum, offset);
-
-    printf("Loading %s", image_name ? image_name : "image");
-    if (image_version)
-	printf(" version %s", image_version);
-    printf("...\n");
-
-    if (!load_segments(phdr, ehdr.e_phnum, checksum_offset, offset, &file_size))
-	goto out;
-
-    if (checksum_offset) {
-	if (!verify_image(&ehdr, phdr, ehdr.e_phnum, checksum))
-	    goto out;
-    }
-
-    /* If we are attempting an ELF boot image, we pass a non-NULL pointer
-       into boot_notes and mark the image as elf-boot rather than standard
-       ELF */
-    if (boot_notes) {
-        *boot_notes = (void *)virt_to_phys(build_boot_notes(info, cmdline));
-        feval("elf-boot saved-program-state >sps.file-type !");
-    } else {
-        feval("elf saved-program-state >sps.file-type !");
-    }
-
-    //debug("current time: %lu\n", currticks());
-
-    debug("entry point is " FMT_elf "\n", addr_fixup(ehdr.e_entry));
-
-    // Initialise saved-program-state
-    PUSH(addr_fixup(ehdr.e_entry));
-    feval("saved-program-state >sps.entry !");
-    PUSH(file_size);
-    feval("saved-program-state >sps.file-size !");
-
-    feval("-1 state-valid !");
-
-out:
-    close_io(fd);
-    if (phdr)
-	free(phdr);
-    if (image_name)
-	free(image_name);
-    if (image_version)
-	free(image_version);
-    return retval;
-}
-
-void 
-elf_init_program(void)
-{
-	char *base;
-	int i;
-	Elf_ehdr *ehdr;
-	Elf_phdr *phdr;
-	size_t size, total_size = 0;
-	char *addr;
-	uintptr_t tmp;
-
-	/* TODO: manage ELF notes section */
-	feval("0 state-valid !");
-	feval("load-base");
-	base = (char*)cell2pointer(POP());
-
-	ehdr = (Elf_ehdr *)base;
-
-	if (!is_elf(ehdr)) {
-		debug("Not a valid ELF memory image\n");
-		return;
-	}
-
-	phdr = (Elf_phdr *)(base + ehdr->e_phoff);
-
-	for (i = 0; i < ehdr->e_phnum; i++) {
-
-#if DEBUG
-		debug("filesz: %08lX memsz: %08lX p_offset: %08lX "
-                        "p_vaddr %08lX\n",
-			(unsigned long)phdr[i].p_filesz, (unsigned long)phdr[i].p_memsz,
-			(unsigned long)phdr[i].p_offset, (unsigned long)phdr[i].p_vaddr );
-#endif
-
-		size = MIN(phdr[i].p_filesz, phdr[i].p_memsz);
-		if (!size)
-			continue;
-#if !defined(CONFIG_SPARC32) && !defined(CONFIG_X86)
-		if( ofmem_claim( phdr[i].p_vaddr, phdr[i].p_memsz, 0 ) == -1 ) {
-                        printk("Ignoring failed claim for va %lx memsz %lx!\n",
-                               (unsigned long)phdr[i].p_vaddr,
-                               (unsigned long)phdr[i].p_memsz);
-		}
-#endif
-		/* Workaround for archs where sizeof(int) != pointer size */
-		tmp = phdr[i].p_vaddr;
-		addr = (char *)tmp;
-
-		memcpy(addr, base + phdr[i].p_offset, size);
-
-		total_size += size;
-
-#ifdef CONFIG_PPC
-		flush_icache_range( addr, addr + size );
-#endif
-	}
-
-	// Initialise saved-program-state
-	PUSH(ehdr->e_entry);
-	feval("saved-program-state >sps.entry !");
-	PUSH(total_size);
-	feval("saved-program-state >sps.file-size !");
-	feval("elf saved-program-state >sps.file-type !");
-
-	feval("-1 state-valid !");
-}