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author | Michal Marek <mmarek@suse.cz> | 2010-10-12 15:09:06 +0200 |
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committer | Michal Marek <mmarek@suse.cz> | 2010-10-12 15:09:06 +0200 |
commit | 239060b93bb30a4ad55f1ecaa512464a035cc5ba (patch) | |
tree | 77f79810e57d4fc24356eca0cd6db463e8994128 /arch/mips/boot/compressed/calc_vmlinuz_load_addr.c | |
parent | kconfig: Use PATH_MAX instead of 128 for path buffer sizes. (diff) | |
parent | kbuild: fix oldnoconfig to do the right thing (diff) | |
download | linux-dev-239060b93bb30a4ad55f1ecaa512464a035cc5ba.tar.xz linux-dev-239060b93bb30a4ad55f1ecaa512464a035cc5ba.zip |
Merge branch 'kbuild/rc-fixes' into kbuild/kconfig
We need to revert the temporary hack in 71ebc01, hence the merge.
Diffstat (limited to 'arch/mips/boot/compressed/calc_vmlinuz_load_addr.c')
-rw-r--r-- | arch/mips/boot/compressed/calc_vmlinuz_load_addr.c | 57 |
1 files changed, 57 insertions, 0 deletions
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 000000000000..88c9d963be88 --- /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; +} |