If using busybox for mktemp and awk (as in Alpine),
some bugs prevent the script from running:
1/ It seems busybox mktemp requires the pattern to have at least
6 X and no other suffix.
The same has been fixed for other scripts in the past:
commit 3771edc35438 ("buildtools: fix build for some mktemp")
2/ It seems busybox awk does not accept the regex ^.*{
except if the opening curly brace is escaped.
Fixes: 4c82473412e8 ("build: add internal tag check")
Fixes: 68b1f1cda5b4 ("build: check AVX512 rather than binutils version")
Fixes: 3290ac14eb94 ("buildtools: detect discrepancies for experimental symbols")
Cc: stable@dpdk.org
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: David Marchand <david.marchand@redhat.com>
Rather than checking the binutils version number, which can lead to
unnecessary disabling of AVX512 if fixes have been backported to distro
versions, we can instead check the output of "as" from binutils to see if
it is correct.
The check in the script uses the minimal assembly reproduction code posted
to the public bug tracker for gcc/binutils for those issues [1]. If the
binutils bug is present, the instruction parameters - specifically the
displacement parameter - will be different in the disassembled output
compared to the input. Therefore the check involves assembling a single
instruction and disassembling it again, checking that the two match.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90028
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
