Update df_s390_dumper structure and dumper reading functions to read
certain dumper fields instead of the entire dump tool.
Update other s390 dump common functions in preparation for the new dumper
and the new s390 extended dump format.
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
When calculating partition start offset during multi-volume dump processing,
the result of multiplication is truncated to 32-bits thus resulting in
invalid behavior in case the real offset is beyond 4Gig boundary.
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.vnet.ibm.com>
Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
With gcc 7 the compiler checks for sprintf() the maxium possible resulting
string based on the used datatypes.
Example:
struct vol {
...
char bus_id[9];
...
}
sprintf(vol->bus_id, "0.%x.%04x", ssid, vol_parm->devno);
The compiler can prove that "ssid" comes from "u8" and "vol_parm->devno"
from "u16". Therefore the resulting maximum string can be 0.ff.ffff which
requires 10 bytes.
This leads to the following warning:
dfi_s390mv.c: In function 'volumes_init':
dfi_s390mv.c:243:45: warning: '__builtin___snprintf_chk' output may be
truncated before the last format character [-Wformat-truncation=]
snprintf(vol->bus_id, sizeof(vol->bus_id), "0.%x.%04x", ssid,
^~~~~~~~~~~
In file included from /usr/include/stdio.h:936:0,
from dfi_s390mv.c:15:
/usr/include/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' output
between 9 and 10 bytes into a destination of size 9
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To get rid of the warning use 10 instead of 9 bytes for the bus_id.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
This commit is based on the s390-tools-1.39.0 version.
Changes on top of s390-tools-1.39.0:
- Add MIT license to all source files
- Add LICENSE file
- Transform REAMDE to README.md (markdown)
- Add AUTHORS.md file
- Add CONTRIBUTING.md file
- Move changelog from README to CHANGELOG.md file
Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Mikhail Zaslonko