diff options
Diffstat (limited to 'qemu/roms/openbios/libopenbios/aout_load.c')
| -rw-r--r-- | qemu/roms/openbios/libopenbios/aout_load.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/qemu/roms/openbios/libopenbios/aout_load.c b/qemu/roms/openbios/libopenbios/aout_load.c deleted file mode 100644 index e9d200251..000000000 --- a/qemu/roms/openbios/libopenbios/aout_load.c +++ /dev/null @@ -1,176 +0,0 @@ -/* a.out boot loader - * As we have seek, this implementation can be straightforward. - * 2003-07 by SONE Takeshi - */ - -#include "config.h" -#include "kernel/kernel.h" - -#ifdef CONFIG_SPARC64 -#define CONFIG_SPARC64_PAGE_SIZE_8KB -#endif - -/* NextStep bootloader on SPARC32 expects the a.out header directly - below load-base (0x4000) */ -#ifdef CONFIG_SPARC32 -#define AOUT_HEADER_COPY -#endif - -#include "libopenbios/sys_info.h" -#include "libopenbios/bindings.h" -#include "libopenbios/aout_load.h" -#include "libc/diskio.h" -#define printf printk -#define debug printk - -#define addr_fixup(addr) ((addr) & 0x00ffffff) - -static char *image_name, *image_version; -static int fd; - -static int -check_mem_ranges(struct sys_info *info, - unsigned long start, - unsigned long size) -{ - int j; - unsigned long end; - unsigned long prog_start, prog_end; - struct memrange *mem; - - prog_start = virt_to_phys(&_start); - prog_end = virt_to_phys(&_end); - - end = start + size; - - 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("A.out file [%#lx-%#lx] doesn't fit into memory\n", start, end - 1); - return 0; -} - -int -is_aout(struct exec *ehdr) -{ - return ((ehdr->a_info & 0xffff) == OMAGIC - || (ehdr->a_info & 0xffff) == NMAGIC - || (ehdr->a_info & 0xffff) == ZMAGIC - || (ehdr->a_info & 0xffff) == QMAGIC); -} - -int -aout_load(struct sys_info *info, ihandle_t dev) -{ - int retval = -1; - struct exec ehdr; - unsigned long start, size; - 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; - } - - for (offset = 0; offset < 16 * 512; offset += 512) { - seek_io(fd, offset); - if (read_io(fd, &ehdr, sizeof ehdr) != sizeof ehdr) { - debug("Can't read a.out header\n"); - retval = LOADER_NOT_SUPPORT; - goto out; - } - if (is_aout(&ehdr)) - break; - } - - if (!is_aout(&ehdr)) { - debug("Not a bootable a.out image\n"); - retval = LOADER_NOT_SUPPORT; - goto out; - } - - if (ehdr.a_text == 0x30800007) - ehdr.a_text=64*1024; - - if (N_MAGIC(ehdr) == NMAGIC) { - size = addr_fixup(N_DATADDR(ehdr)) + addr_fixup(ehdr.a_data); - } else { - size = addr_fixup(ehdr.a_text) + addr_fixup(ehdr.a_data); - } - - if (size < 7680) - size = 7680; - - fword("load-base"); - start = POP(); // N_TXTADDR(ehdr); - - if (!check_mem_ranges(info, start, size)) - goto out; - - printf("Loading a.out %s...\n", image_name ? image_name : "image"); - - seek_io(fd, offset + N_TXTOFF(ehdr)); - - if (N_MAGIC(ehdr) == NMAGIC) { - if ((size_t)read_io(fd, (void *)start, ehdr.a_text) != ehdr.a_text) { - printf("Can't read program text segment (size 0x" FMT_aout_ehdr ")\n", ehdr.a_text); - goto out; - } - if ((size_t)read_io(fd, (void *)(start + N_DATADDR(ehdr)), ehdr.a_data) != ehdr.a_data) { - printf("Can't read program data segment (size 0x" FMT_aout_ehdr ")\n", ehdr.a_data); - goto out; - } - } else { - if ((size_t)read_io(fd, (void *)start, size) != size) { - printf("Can't read program (size 0x" FMT_sizet ")\n", size); - goto out; - } - } - - debug("Loaded %lu bytes\n", size); - debug("entry point is %#lx\n", start); - -#ifdef AOUT_HEADER_COPY - // Copy the a.out header just before start - memcpy((char *)(start - 0x20), &ehdr, 0x20); -#endif - - // Initialise saved-program-state - PUSH(addr_fixup(start)); - feval("saved-program-state >sps.entry !"); - PUSH(size); - feval("saved-program-state >sps.file-size !"); - feval("aout saved-program-state >sps.file-type !"); - - feval("-1 state-valid !"); - -out: - close_io(fd); - return retval; -} - -void -aout_init_program(void) -{ - // Currently not implemented - feval("0 state-valid !"); -} |