From ddb2ffdc474a3000887dc776b971d04bde29decc Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 21 Mar 2024 13:01:58 -0300 Subject: libbpf: Define MFD_CLOEXEC if not available Since its going directly to the syscall to avoid not having memfd_create() available in some systems, do the same for its MFD_CLOEXEC flags, defining it if not available. This fixes the build in those systems, noticed while building perf on a set of build containers. Fixes: 9fa5e1a180aa639f ("libbpf: Call memfd_create() syscall directly") Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/ZfxZ9nCyKvwmpKkE@x1 --- tools/lib/bpf/libbpf.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'tools') diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 1e3e697b98bca..a2061fcd612d7 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -1650,6 +1650,10 @@ static int sys_memfd_create(const char *name, unsigned flags) return syscall(__NR_memfd_create, name, flags); } +#ifndef MFD_CLOEXEC +#define MFD_CLOEXEC 0x0001U +#endif + static int create_placeholder_fd(void) { int fd; -- cgit 1.2.3-korg