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zdump: Drop support of non-extended single volume DASD dumpers

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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>
This commit is contained in:
Mikhail Zaslonko
2025-01-22 20:54:41 +01:00
committed by Jan Höppner
parent 2c5d4073a7
commit 6f82c5792a
9 changed files with 85 additions and 153 deletions
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zipl/src/install.c
+1 -2
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@@ -367,8 +367,7 @@ static int clear_ccw_dumper(const struct disk_info *info, int fd)
/*
* Check if the dump tool is present and clear its first block with zeroes.
*/
if (strncmp(dumper_magic, DF_S390_DUMPER_MAGIC64, sizeof(dumper_magic)) == 0 ||
strncmp(dumper_magic, DF_S390_DUMPER_MAGIC_EXT, sizeof(dumper_magic)) == 0 ||
if (strncmp(dumper_magic, DF_S390_DUMPER_MAGIC_EXT, sizeof(dumper_magic)) == 0 ||
strncmp(dumper_magic, DF_S390_DUMPER_MAGIC_MV, sizeof(dumper_magic)) == 0 ||
strncmp(dumper_magic, DF_S390_DUMPER_MAGIC_MV_EXT, sizeof(dumper_magic)) == 0) {
if (misc_seek(fd, ECKD_CDL_DUMP_REC * info->phy_block_size))