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/*
* kexec: Linux boots Linux
*
* modified from kexec-ppc.c
*
*/
#define _GNU_SOURCE
#include <stddef.h>
#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <getopt.h>
#include "../../kexec.h"
#include "../../kexec-syscall.h"
#include "kexec-arm.h"
#include <arch/options.h>
#define MAX_MEMORY_RANGES 64
#define MAX_LINE 160
static struct memory_range memory_range[MAX_MEMORY_RANGES];
/* Return a sorted list of available memory ranges. */
int get_memory_ranges(struct memory_range **range, int *ranges,
unsigned long kexec_flags)
{
const char *iomem = proc_iomem();
int memory_ranges = 0;
char line[MAX_LINE];
FILE *fp;
fp = fopen(iomem, "r");
if (!fp) {
fprintf(stderr, "Cannot open %s: %s\n",
iomem, strerror(errno));
return -1;
}
while(fgets(line, sizeof(line), fp) != 0) {
unsigned long long start, end;
char *str;
int type;
int consumed;
int count;
if (memory_ranges >= MAX_MEMORY_RANGES)
break;
count = sscanf(line, "%Lx-%Lx : %n",
&start, &end, &consumed);
if (count != 2)
continue;
str = line + consumed;
end = end + 1;
if (memcmp(str, "System RAM\n", 11) == 0) {
type = RANGE_RAM;
}
else if (memcmp(str, "reserved\n", 9) == 0) {
type = RANGE_RESERVED;
}
else {
continue;
}
memory_range[memory_ranges].start = start;
memory_range[memory_ranges].end = end;
memory_range[memory_ranges].type = type;
memory_ranges++;
}
fclose(fp);
*range = memory_range;
*ranges = memory_ranges;
return 0;
}
/* Supported file types and callbacks */
struct file_type file_type[] = {
/* uImage is probed before zImage because the latter also accepts
uncompressed images. */
{"uImage", uImage_arm_probe, uImage_arm_load, zImage_arm_usage},
{"zImage", zImage_arm_probe, zImage_arm_load, zImage_arm_usage},
};
int file_types = sizeof(file_type) / sizeof(file_type[0]);
void arch_usage(void)
{
}
static struct {
} arch_options = {
};
int arch_process_options(int argc, char **argv)
{
static const struct option options[] = {
KEXEC_ARCH_OPTIONS
{ 0, 0, NULL, 0 },
};
static const char short_options[] = KEXEC_ARCH_OPT_STR;
int opt;
opterr = 0; /* Don't complain about unrecognized options here */
while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) {
switch(opt) {
default:
break;
}
}
/* Reset getopt for the next pass; called in other source modules */
opterr = 1;
optind = 1;
return 0;
}
const struct arch_map_entry arches[] = {
{ "arm", KEXEC_ARCH_ARM },
{ 0 },
};
int arch_compat_trampoline(struct kexec_info *info)
{
return 0;
}
void arch_update_purgatory(struct kexec_info *info)
{
}
int is_crashkernel_mem_reserved(void)
{
return 0; /* kdump is not supported on this platform (yet) */
}
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