Files
s390-tools/zdump/dt.c
Mikhail Zaslonko 6f82c5792a zdump: Drop support of non-extended single volume DASD dumpers
Since DASD standalone dumper does not support non-extended s390 dump
format for years, drop zgetdump support of non-extended s390 single volume
DASD dump-tool:
- Merge dt_390sv_ext.c and dt_s390sv.c counterparts.
- Update DT vector of supported dump tools removing dt_s390sv entry and
  keeping dt_s390sv_ext entry for s390 single volume extended dump tool.
- Remove dt_s390sv.c source and update the Makefile accordingly.
- Remove magic constants relevant to non-extended s390 single volume DASD
  dumper.
- Drop s390 single volume DASD dumper version 5 in df_s390_dumper_read().

Note: We still need support of non-extended s390 dump format since such
output dump files can be produced by 'zgetdump -f s390' via dfo_s390. Thus,
both dfi_s390 and dfi_s390_ext DFI vector entries remain in order to
process s390 dumps files as well as s390_ext dumps on the DASD partition.

Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2025-04-07 17:42:18 +02:00

142 lines
2.5 KiB
C

/*
* zgetdump - Tool for copying and converting System z dumps
*
* Dump tool info generic functions
*
* Copyright IBM Corp. 2001, 2018
*
* s390-tools is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#include "zgetdump.h"
#include "zg.h"
#include "dt.h"
/*
* Supported dump tools
*/
static struct dt *dt_vec[] = {
&dt_s390mv_ext,
&dt_s390mv,
&dt_s390sv_ext,
&dt_scsi,
&dt_ngdump,
NULL,
};
/*
* Dumper attribute information
*/
struct attr {
int *force;
u64 *mem_limit;
char *dasd_type;
};
/*
* File local static data
*/
static struct {
int version;
enum dfi_arch arch;
struct attr attr;
struct dt *dt;
} l;
/*
* Init dump tool backends
*/
void dt_init(void)
{
struct dt *dt;
int i = 0;
while ((dt = dt_vec[i])) {
g.fh = zg_open(g.opts.device, O_RDONLY, ZG_CHECK);
if (!S_ISBLK(g.fh->sb.st_mode))
ERR_EXIT("Please specify DASD, SCSI or NVMe device node"
"(e.g. /dev/dasdd, /dev/sda or /dev/nvme0n1 )");
if (dt->init() == 0) {
l.dt = dt;
return;
}
zg_close(g.fh);
i++;
}
ERR_EXIT("No dump tool found on \"%s\"", g.opts.device);
}
/*
* Print info about dump tool
*/
void dt_info_print(void)
{
STDERR("Dump device info:\n");
STDERR(" Dump tool.........: %s\n", l.dt->desc);
STDERR(" Version...........: %d\n", l.version);
STDERR(" Architecture......: %s\n", dfi_arch_str(l.arch));
if (l.attr.dasd_type)
STDERR(" DASD type.........: %s\n", l.attr.dasd_type);
if (l.attr.mem_limit) {
if (*l.attr.mem_limit != U64_MAX)
STDERR(" Dump size limit...: %lld MB\n",
TO_MIB(*l.attr.mem_limit));
else
STDERR(" Dump size limit...: none\n");
}
if (l.attr.force) {
if (*l.attr.force == 0)
STDERR(" Force specified...: no\n");
else
STDERR(" Force specified...: yes\n");
}
if (l.dt->info) {
STDERR("\n");
l.dt->info();
}
}
/*
* Set DT architecture
*/
void dt_arch_set(enum dfi_arch arch)
{
l.arch = arch;
}
/*
* Set DT version
*/
void dt_version_set(int version)
{
l.version = version;
}
/*
* Set DT memory limit attribute
*/
void dt_attr_mem_limit_set(u64 mem_limit)
{
l.attr.mem_limit = zg_alloc(sizeof(*l.attr.mem_limit));
*l.attr.mem_limit = mem_limit;
}
/*
* Set DT force attribute
*/
void dt_attr_force_set(int force)
{
l.attr.force = zg_alloc(sizeof(*l.attr.force));
*l.attr.force = force;
}
/*
* Set DT DASD type attribute
*/
void dt_attr_dasd_type_set(const char *dasd_type)
{
l.attr.dasd_type = zg_strdup(dasd_type);
}