2 Commits

Author SHA1 Message Date
Bruce Richardson
139bdc1db6 tools: fix pmdinfo for FreeBSD
There were a couple of issues which prevented pmdinfo.py from running on
FreeBSD, both of which are fixed by this patch.

* The path to python is not /usr/bin/python as on Linux, so use
  /usr/bin/env to find it on both OS's.
* The path to the pci ids DB is in a different location on FreeBSD,
  so use the platform python library to look in different default
  locations depending on the underlying OS. [There are two possible
  locations to look on FreeBSD, as defined by pciconf manpage, so
  check in both in order of better to worse]

Fixes: c67c9a5c646a ("tools: query binaries for HW and other support information")

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2016-07-10 14:51:09 +02:00
Neil Horman
c67c9a5c64 tools: query binaries for HW and other support information
This tool searches for the primer sting PMD_DRIVER_INFO= in any ELF binary,
and, if found parses the remainder of the string as a json encoded string,
outputting the results in either a human readable or raw, script parseable
format

Note that, in the case of dynamically linked applications, pmdinfo.py will
scan for implicitly linked PMDs by searching the specified binaries
.dynamic section for DT_NEEDED entries that contain the substring
librte_pmd.  The DT_RUNPATH, LD_LIBRARY_PATH, /usr/lib and /lib are
searched for these libraries, in that order

If a file is specified with no path, it is assumed to be a PMD DSO, and the
LD_LIBRARY_PATH, /usr/lib[64]/ and /lib[64] is searched for it

Currently the tool can output data in 3 formats:

a) raw, suitable for scripting, where the raw JSON strings are dumped out
b) table format (default) where hex pci ids are dumped in a table format
c) pretty, where a user supplied pci.ids file is used to print out vendor
and device strings

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Remy Horton <remy.horton@intel.com>
2016-07-06 23:21:40 +02:00