Commit-ID: dfcbc2f2994b8a3af3605a26dc29c07ad7378bf4
Gitweb: https://git.kernel.org/tip/dfcbc2f2994b8a3af3605a26dc29c07ad7378bf4
Author: Arnaldo Carvalho de Melo <[email protected]>
AuthorDate: Mon, 11 Mar 2019 17:07:52 -0300
Committer: Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Mon, 11 Mar 2019 17:14:31 -0300
tools lib bpf: Fix the build by adding a missing stdarg.h include
The libbpf_print_fn_t typedef uses va_list without including the header
where that type is defined, stdarg.h, breaking in places where we're
unlucky for that type not to be already defined by some previously
included header.
Noticed while building on fedora 24 cross building tools/perf to the ARC
architecture using the uClibc C library:
28 fedora:24-x-ARC-uClibc : FAIL arc-linux-gcc (ARCompact ISA Linux uClibc
toolchain 2017.09-rc2) 7.1.1 20170710
CC /tmp/build/perf/tests/llvm.o
In file included from tests/llvm.c:3:0:
/git/linux/tools/lib/bpf/libbpf.h:57:20: error: unknown type name 'va_list'
const char *, va_list ap);
^~~~~~~
/git/linux/tools/lib/bpf/libbpf.h:59:34: error: unknown type name
'libbpf_print_fn_t'
LIBBPF_API void libbpf_set_print(libbpf_print_fn_t fn);
^~~~~~~~~~~~~~~~~
mv: cannot stat '/tmp/build/perf/tests/.llvm.o.tmp': No such file or directory
Cc: Alexei Starovoitov <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Jakub Kicinski <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Quentin Monnet <[email protected]>
Cc: Stanislav Fomichev <[email protected]>
Cc: Yonghong Song <[email protected]>
Fixes: a8a1f7d09cfc ("libbpf: fix libbpf_print")
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/lib/bpf/libbpf.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index b4652aa1a58a..aa1521a51687 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -10,6 +10,7 @@
#ifndef __LIBBPF_LIBBPF_H
#define __LIBBPF_LIBBPF_H
+#include <stdarg.h>
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
