tree 49c78f1d277c6cba8cf008e3829bfc3ad2da8b4d
parent 51746f94865a165e66d34ab74403810d31eae951
author Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> 1565871234 +0300
committer Daniel Borkmann <daniel@iogearbox.net> 1566390677 +0200

libbpf: use LFS (_FILE_OFFSET_BITS) instead of direct mmap2 syscall

Drop __NR_mmap2 fork in flavor of LFS, that is _FILE_OFFSET_BITS=64
(glibc & bionic) / LARGEFILE64_SOURCE (for musl) decision. It allows
mmap() to use 64bit offset that is passed to mmap2 syscall. As result
pgoff is not truncated and no need to use direct access to mmap2 for
32 bits systems.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>