diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 12 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/calc_vmlinuz_load_addr.c | 57 |
2 files changed, 61 insertions, 8 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index edc48adf884..3bdbeef0e0f 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -48,23 +48,19 @@ OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE $(call if_changed,objcopy) -suffix_$(CONFIG_KERNEL_GZIP) = gz -suffix_$(CONFIG_KERNEL_BZIP2) = bz2 -suffix_$(CONFIG_KERNEL_LZMA) = lzma -suffix_$(CONFIG_KERNEL_LZO) = lzo tool_$(CONFIG_KERNEL_GZIP) = gzip tool_$(CONFIG_KERNEL_BZIP2) = bzip2 tool_$(CONFIG_KERNEL_LZMA) = lzma tool_$(CONFIG_KERNEL_LZO) = lzo -targets += vmlinux.gz vmlinux.bz2 vmlinux.lzma vmlinux.lzo -$(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin FORCE +targets += vmlinux.bin.z +$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE $(call if_changed,$(tool_y)) targets += piggy.o -OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.$(suffix_y) \ +OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \ --set-section-flags=.image=contents,alloc,load,readonly,data -$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.$(suffix_y) FORCE +$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE $(call if_changed,objcopy) LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T diff --git a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c new file mode 100644 index 00000000000..88c9d963be8 --- /dev/null +++ b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2010 "Wu Zhangjin" <wuzhangjin@gmail.com> + * + * 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. + */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +int main(int argc, char *argv[]) +{ + struct stat sb; + uint64_t vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr; + + if (argc != 3) { + fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n", + argv[0]); + return EXIT_FAILURE; + } + + if (stat(argv[1], &sb) == -1) { + perror("stat"); + return EXIT_FAILURE; + } + + /* Convert hex characters to dec number */ + errno = 0; + if (sscanf(argv[2], "%llx", &vmlinux_load_addr) != 1) { + if (errno != 0) + perror("sscanf"); + else + fprintf(stderr, "No matching characters\n"); + + return EXIT_FAILURE; + } + + vmlinux_size = (uint64_t)sb.st_size; + vmlinuz_load_addr = vmlinux_load_addr + vmlinux_size; + + /* + * Align with 16 bytes: "greater than that used for any standard data + * types by a MIPS compiler." -- See MIPS Run Linux (Second Edition). + */ + + vmlinuz_load_addr += (16 - vmlinux_size % 16); + + printf("0x%llx\n", vmlinuz_load_addr); + + return EXIT_SUCCESS; +} |