talos-op-linux/tools/include/linux/overflow.h, branch v5.1Talos™ II Linux sources for OpenPOWERhttps://git.raptorcs.com/git/talos-op-linux/atom?h=v5.12018-07-11T20:13:34+00:00tools: bpf: make use of reallocarray2018-07-11T20:13:34+00:00Jakub Kicinskijakub.kicinski@netronome.com2018-07-10T21:43:05+00:00urn:sha1:531b014e7a2fedaeff0b19b2934d830cd4b35dc0
reallocarray() is a safer variant of realloc which checks for
multiplication overflow in case of array allocation. Since it's
not available in Glibc < 2.26 import kernel's overflow.h and
add a static inline implementation when needed. Use feature
detection to probe for existence of reallocarray.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>