diff options
Diffstat (limited to 'arch/sparc/boot')
| -rw-r--r-- | arch/sparc/boot/Makefile | 2 | ||||
| -rw-r--r-- | arch/sparc/boot/piggyback_32.c | 45 |
2 files changed, 30 insertions, 17 deletions
diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile index 97e3feb9ff1b..4c81fe59ab58 100644 --- a/arch/sparc/boot/Makefile +++ b/arch/sparc/boot/Makefile @@ -15,7 +15,7 @@ quiet_cmd_elftoaout = ELFTOAOUT $@ ifeq ($(CONFIG_SPARC32),y) quiet_cmd_piggy = PIGGY $@ - cmd_piggy = $(obj)/piggyback_32 $@ System.map $(ROOT_IMG) + cmd_piggy = $(obj)/piggyback_32 $(BITS) $@ System.map $(ROOT_IMG) quiet_cmd_btfix = BTFIX $@ cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@ quiet_cmd_sysmap = SYSMAP $(obj)/System.map diff --git a/arch/sparc/boot/piggyback_32.c b/arch/sparc/boot/piggyback_32.c index 369634d8271e..c4b0843f56ad 100644 --- a/arch/sparc/boot/piggyback_32.c +++ b/arch/sparc/boot/piggyback_32.c @@ -38,6 +38,17 @@ #define AOUT_TEXT_OFFSET 32 +static int is64bit = 0; + +/* align to power-of-two size */ +static int align(int n) +{ + if (is64bit) + return (n + 0x1fff) & ~0x1fff; + else + return (n + 0xfff) & ~0xfff; +} + /* read two bytes as big endian */ static unsigned short ld2(char *p) { @@ -62,7 +73,7 @@ static void die(const char *str) static void usage(void) { /* fs_img.gz is an image of initial ramdisk. */ - fprintf(stderr, "Usage: piggyback vmlinux.aout System.map fs_img.gz\n"); + fprintf(stderr, "Usage: piggyback bits vmlinux.aout System.map fs_img.gz\n"); fprintf(stderr, "\tKernel image will be modified in place.\n"); exit(1); } @@ -128,19 +139,21 @@ int main(int argc,char **argv) struct stat s; int image, tail; - if (argc != 4) + if (argc != 5) usage(); - if (stat (argv[3], &s) < 0) - die(argv[3]); + if (strcmp(argv[1], "64") == 0) + is64bit = 1; + if (stat (argv[4], &s) < 0) + die(argv[4]); - if (!get_start_end(argv[2], &start, &end)) { - fprintf (stderr, "Could not determine start and end from %s\n", argv[2]); + if (!get_start_end(argv[3], &start, &end)) { + fprintf (stderr, "Could not determine start and end from %s\n", argv[3]); exit(1); } - if ((image = open(argv[1], O_RDWR)) < 0) - die(argv[1]); + if ((image = open(argv[2], O_RDWR)) < 0) + die(argv[2]); if (read(image, buffer, 512) != 512) - die(argv[1]); + die(argv[2]); if (memcmp(buffer, aout_magic, 4) != 0) { fprintf (stderr, "Not a.out. Don't blame me.\n"); exit(1); @@ -157,7 +170,7 @@ int main(int argc,char **argv) if (lseek(image, i, 0) < 0) die("lseek"); if (read(image, buffer, 1024) != 1024) - die(argv[1]); + die(argv[2]); for (q = buffer, r = q + 512; q < r; q += 4) { if (*q == 'H' && q[1] == 'd' && q[2] == 'r' && q[3] == 'S') break; @@ -179,20 +192,20 @@ int main(int argc,char **argv) */ st4(buffer, 0); st4(buffer + 4, 0x01000000); - st4(buffer + 8, (end + 32 + 4095) & ~4095); + st4(buffer + 8, align(end + 32)); st4(buffer + 12, s.st_size); if (write(image, buffer + 2, 14) != 14) - die(argv[1]); + die(argv[2]); /* seek page aligned boundary in the image file and add boot image */ - if (lseek(image, AOUT_TEXT_OFFSET - start + ((end + 32 + 4095) & ~4095), 0) < 0) + if (lseek(image, AOUT_TEXT_OFFSET - start + align(end + 32), 0) < 0) die("lseek"); - if ((tail = open(argv[3],O_RDONLY)) < 0) - die(argv[3]); + if ((tail = open(argv[4], O_RDONLY)) < 0) + die(argv[4]); while ((i = read(tail, buffer, 1024)) > 0) if (write(image, buffer, i) != i) - die(argv[1]); + die(argv[2]); if (close(image) < 0) die("close"); if (close(tail) < 0) |