linux-imx
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committed e04b742f74cx
* That function is the entry point for command line parsing and should be/* * crash.c - kernel crash support code. * Copyright (C) 2002-2004 Eric Biederman <ebiederm@xmission.com> * * This source code is licensed under the GNU General Public License, * Version 2. See the file COPYING for more details. *//* vmcoreinfo stuff */unsigned char *vmcoreinfo_data;size_t vmcoreinfo_size;u32 *vmcoreinfo_note;/* trusted vmcoreinfo, e.g. we can make a copy in the crash memory */static unsigned char *vmcoreinfo_data_safecopy;/* * parsing the "crashkernel" commandline * * this code is intended to be called from architecture specific code *//* * This function parses command lines in the format * * crashkernel=ramsize-range:size[,...][@offset] * * The function returns 0 on success and -EINVAL on failure. */static int __init parse_crashkernel_mem(char *cmdline, unsigned long long system_ram, unsigned long long *crash_size, unsigned long long *crash_base){ char *cur = cmdline, *tmp; /* for each entry of the comma-separated list */ do { unsigned long long start, end = ULLONG_MAX, size; /* get the start of the range */ start = memparse(cur, &tmp); if (cur == tmp) { pr_warn("crashkernel: Memory value expected\n"); return -EINVAL; } cur = tmp; if (*cur != '-') { pr_warn("crashkernel: '-' expected\n"); return -EINVAL; } cur++; /* if no ':' is here, than we read the end */ if (*cur != ':') { end = memparse(cur, &tmp); if (cur == tmp) { pr_warn("crashkernel: Memory value expected\n"); return -EINVAL; } cur = tmp; if (end <= start) { pr_warn("crashkernel: end <= start\n"); return -EINVAL; } } if (*cur != ':') { pr_warn("crashkernel: ':' expected\n"); return -EINVAL; } cur++; size = memparse(cur, &tmp); if (cur == tmp) { pr_warn("Memory value expected\n"); return -EINVAL; } cur = tmp; if (size >= system_ram) { pr_warn("crashkernel: invalid size\n"); return -EINVAL; }