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tools: bpftool: fix compilation with older headers

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Compilation of bpftool on a distro that lacks eBPF support in the installed
kernel headers fails with:

common.c: In function ‘is_bpffs’:
common.c:96:40: error: ‘BPF_FS_MAGIC’ undeclared (first use in this function)
  return (unsigned long)st_fs.f_type == BPF_FS_MAGIC;
                                        ^
Fix this the same way it is already in tools/lib/bpf/libbpf.c and
tools/lib/api/fs/fs.c.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jiri Benc 2018-03-06 14:50:10 +01:00 committed by Daniel Borkmann
parent d02f51cbcf
commit 20d5de51e7
1 changed files with 4 additions and 0 deletions
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4
tools/bpf/bpftool/common.c
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@ -55,6 +55,10 @@
#include "main.h" #include "main.h"
#ifndef BPF_FS_MAGIC
#define BPF_FS_MAGIC 0xcafe4a11
#endif
void p_err(const char *fmt, ...) void p_err(const char *fmt, ...)
{ {
va_list ap; va_list ap;