2874c5fd28
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2010 "Wu Zhangjin" <wuzhangjin@gmail.com>
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "../../../../include/linux/sizes.h"
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int main(int argc, char *argv[])
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{
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unsigned long long vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr;
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struct stat sb;
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if (argc != 3) {
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fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n",
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argv[0]);
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return EXIT_FAILURE;
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}
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if (stat(argv[1], &sb) == -1) {
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perror("stat");
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return EXIT_FAILURE;
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}
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/* Convert hex characters to dec number */
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errno = 0;
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if (sscanf(argv[2], "%llx", &vmlinux_load_addr) != 1) {
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if (errno != 0)
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perror("sscanf");
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else
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fprintf(stderr, "No matching characters\n");
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return EXIT_FAILURE;
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}
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vmlinux_size = (uint64_t)sb.st_size;
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vmlinuz_load_addr = vmlinux_load_addr + vmlinux_size;
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/*
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* Align with 64KB: KEXEC needs load sections to be aligned to PAGE_SIZE,
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* which may be as large as 64KB depending on the kernel configuration.
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*/
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vmlinuz_load_addr += (SZ_64K - vmlinux_size % SZ_64K);
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printf("0x%llx\n", vmlinuz_load_addr);
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return EXIT_SUCCESS;
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}
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