diff options
Diffstat (limited to 'arch/sparc/boot')
| -rw-r--r-- | arch/sparc/boot/.gitignore | 8 | ||||
| -rw-r--r-- | arch/sparc/boot/Makefile | 38 | ||||
| -rw-r--r-- | arch/sparc/boot/piggyback_32.c (renamed from arch/sparc/boot/piggyback.c) | 0 | ||||
| -rw-r--r-- | arch/sparc/boot/piggyback_64.c | 109 |
4 files changed, 150 insertions, 5 deletions
diff --git a/arch/sparc/boot/.gitignore b/arch/sparc/boot/.gitignore new file mode 100644 index 00000000000..fc6f3986c76 --- /dev/null +++ b/arch/sparc/boot/.gitignore @@ -0,0 +1,8 @@ +btfix.S +btfixupprep +image +zImage +tftpboot.img +vmlinux.aout +piggyback + diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile index 3e77a9f5224..96041a8d39e 100644 --- a/arch/sparc/boot/Makefile +++ b/arch/sparc/boot/Makefile @@ -6,13 +6,16 @@ ROOT_IMG := /usr/src/root.img ELFTOAOUT := elftoaout -hostprogs-y := piggyback btfixupprep -targets := tftpboot.img btfix.o btfix.S image +hostprogs-y := piggyback_32 piggyback_64 btfixupprep +targets := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout +clean-files := System.map quiet_cmd_elftoaout = ELFTOAOUT $@ cmd_elftoaout = $(ELFTOAOUT) $(obj)/image -o $@ + +ifeq ($(CONFIG_SPARC32),y) quiet_cmd_piggy = PIGGY $@ - cmd_piggy = $(obj)/piggyback $@ $(obj)/System.map $(ROOT_IMG) + cmd_piggy = $(obj)/piggyback_32 $@ $(obj)/System.map $(ROOT_IMG) quiet_cmd_btfix = BTFIX $@ cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@ quiet_cmd_sysmap = SYSMAP $(obj)/System.map @@ -37,8 +40,8 @@ define rule_image echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd endef -BTOBJS := $(HEAD_Y) $(INIT_Y) -BTLIBS := $(CORE_Y) $(LIBS_Y) $(DRIVERS_Y) $(NET_Y) +BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT)) +BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN)) LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \ --start-group $(BTLIBS) --end-group \ $(kallsyms.o) $(obj)/btfix.o @@ -61,3 +64,28 @@ $(obj)/tftpboot.img: $(obj)/piggyback $(obj)/System.map $(obj)/image FORCE $(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE $(call if_changed,btfix) + +endif + +ifeq ($(CONFIG_SPARC64),y) +quiet_cmd_piggy = PIGGY $@ + cmd_piggy = $(obj)/piggyback_64 $@ System.map $(ROOT_IMG) +quiet_cmd_strip = STRIP $@ + cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start vmlinux -o $@ + + +# Actual linking +$(obj)/image: vmlinux FORCE + $(call if_changed,strip) + @echo ' kernel: $@ is ready' + +$(obj)/tftpboot.img: vmlinux $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE + $(call if_changed,elftoaout) + $(call if_changed,piggy) + @echo ' kernel: $@ is ready' + +$(obj)/vmlinux.aout: vmlinux FORCE + $(call if_changed,elftoaout) + @echo ' kernel: $@ is ready' +endif + diff --git a/arch/sparc/boot/piggyback.c b/arch/sparc/boot/piggyback_32.c index c9f500c1a8b..c9f500c1a8b 100644 --- a/arch/sparc/boot/piggyback.c +++ b/arch/sparc/boot/piggyback_32.c diff --git a/arch/sparc/boot/piggyback_64.c b/arch/sparc/boot/piggyback_64.c new file mode 100644 index 00000000000..de364bfed0b --- /dev/null +++ b/arch/sparc/boot/piggyback_64.c @@ -0,0 +1,109 @@ +/* + Simple utility to make a single-image install kernel with initial ramdisk + for Sparc64 tftpbooting without need to set up nfs. + + Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include <errno.h> +#include <fcntl.h> +#include <dirent.h> +#include <unistd.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/stat.h> + +/* Note: run this on an a.out kernel (use elftoaout for it), as PROM looks for a.out image onlly + usage: piggyback vmlinux System.map tail, where tail is gzipped fs of the initial ramdisk */ + +void die(char *str) +{ + perror (str); + exit(1); +} + +int main(int argc,char **argv) +{ + char buffer [1024], *q, *r; + unsigned int i, j, k, start, end, offset; + FILE *map; + struct stat s; + int image, tail; + + if (stat (argv[3], &s) < 0) die (argv[3]); + map = fopen (argv[2], "r"); + if (!map) die(argv[2]); + while (fgets (buffer, 1024, map)) { + if (!strcmp (buffer + 19, "_start\n")) + start = strtoul (buffer + 8, NULL, 16); + else if (!strcmp (buffer + 19, "_end\n")) + end = strtoul (buffer + 8, NULL, 16); + } + fclose (map); + if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]); + if (read(image,buffer,512) != 512) die(argv[1]); + if (!memcmp (buffer, "\177ELF", 4)) { + unsigned int *p = (unsigned int *)(buffer + *(unsigned int *)(buffer + 28)); + + i = p[1] + *(unsigned int *)(buffer + 24) - p[2]; + if (lseek(image,i,0) < 0) die("lseek"); + if (read(image,buffer,512) != 512) die(argv[1]); + j = 0; + } else if (*(unsigned int *)buffer == 0x01030107) { + i = j = 32; + } else { + fprintf (stderr, "Not ELF nor a.out. Don't blame me.\n"); + exit(1); + } + k = i; + if (j == 32 && buffer[40] == 'H' && buffer[41] == 'd' && buffer[42] == 'r' && buffer[43] == 'S') { + offset = 40 + 10; + } else { + i += ((*(unsigned short *)(buffer + j + 2))<<2) - 512; + if (lseek(image,i,0) < 0) die("lseek"); + if (read(image,buffer,1024) != 1024) die(argv[1]); + for (q = buffer, r = q + 512; q < r; q += 4) { + if (*q == 'H' && q[1] == 'd' && q[2] == 'r' && q[3] == 'S') + break; + } + if (q == r) { + fprintf (stderr, "Couldn't find headers signature in the kernel.\n"); + exit(1); + } + offset = i + (q - buffer) + 10; + } + if (lseek(image, offset, 0) < 0) die ("lseek"); + *(unsigned *)buffer = 0; + *(unsigned *)(buffer + 4) = 0x01000000; + *(unsigned *)(buffer + 8) = ((end + 32 + 8191) & ~8191); + *(unsigned *)(buffer + 12) = s.st_size; + if (write(image,buffer+2,14) != 14) die (argv[1]); + if (lseek(image, 4, 0) < 0) die ("lseek"); + *(unsigned *)buffer = ((end + 32 + 8191) & ~8191) - (start & ~0x3fffffUL) + s.st_size; + *(unsigned *)(buffer + 4) = 0; + *(unsigned *)(buffer + 8) = 0; + if (write(image,buffer,12) != 12) die (argv[1]); + if (lseek(image, k - start + ((end + 32 + 8191) & ~8191), 0) < 0) die ("lseek"); + if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]); + while ((i = read (tail,buffer,1024)) > 0) + if (write(image,buffer,i) != i) die (argv[1]); + if (close(image) < 0) die("close"); + if (close(tail) < 0) die("close"); + return 0; +} |