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zdump: Implement DT interface for NGDump

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The NGDump DT interface enables zgetdump to display various meta
information contained within a dump partition prepared for NGDump
stand-alone dump.

Usage example:
--------------

No dump yet made
----------------

$ zgetdump -d /dev/nvme0n1
Dump device info:
  Dump tool.........: Next Generation (NGDump) dump tool
  Version...........: 1
  Architecture......: s390x (64 bit)

Partition info:
  Partition number..: 1

Dump present
------------

$ zgetdump -d /dev/nvme0n1
Dump device info:
  Dump tool.........: Next Generation (NGDump) dump tool
  Version...........: 1
  Architecture......: s390x (64 bit)

Partition info:
  Partition number..: 1
Meta info:
  File..............: dump.elf

Alternative disk path
---------------------

$ zgetdump -d /dev/disk/by-id/nvme-eui.01000000010000005cd2e4c5bc845051
Dump device info:
  Dump tool.........: Next Generation (NGDump) dump tool
  Version...........: 1
  Architecture......: s390x (64 bit)

Partition info:
  Partition number..: 1
Meta info:
  File..............: dump.elf

Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Tested-by:  Mikhail Zaslonko <zaslonko@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Alexander Egorenkov
2021-08-05 11:33:20 +02:00
committed by Jan Höppner
parent 8ddc31ea77
commit 0466760ec1
4 changed files with 68 additions and 3 deletions
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zdump/Makefile
+1 -1
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@@ -54,7 +54,7 @@ OBJECTS = zgetdump.o opts.o zg.o zg_error.o zg_print.o \
dt.o dt_s390sv.o dt_s390sv_ext.o \
dt_s390mv.o dt_s390mv_ext.o \
dt_scsi.o output.o \
ngdump.o
ngdump.o dt_ngdump.o
ifeq ("$(HAVE_FUSE)","0")
FUSE_CFLAGS = -DHAVE_FUSE=0 -D_FILE_OFFSET_BITS=64