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Diffstat (limited to 'tools/lib/bpf/libbpf_internal.h')
-rw-r--r--tools/lib/bpf/libbpf_internal.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h
index 930cc9616527..ad936ac5e639 100644
--- a/tools/lib/bpf/libbpf_internal.h
+++ b/tools/lib/bpf/libbpf_internal.h
@@ -19,6 +19,20 @@
#include <libelf.h>
#include "relo_core.h"
+/* Android's libc doesn't support AT_EACCESS in faccessat() implementation
+ * ([0]), and just returns -EINVAL even if file exists and is accessible.
+ * See [1] for issues caused by this.
+ *
+ * So just redefine it to 0 on Android.
+ *
+ * [0] https://android.googlesource.com/platform/bionic/+/refs/heads/android13-release/libc/bionic/faccessat.cpp#50
+ * [1] https://github.com/libbpf/libbpf-bootstrap/issues/250#issuecomment-1911324250
+ */
+#ifdef __ANDROID__
+#undef AT_EACCESS
+#define AT_EACCESS 0
+#endif
+
/* make sure libbpf doesn't use kernel-only integer typedefs */
#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
@@ -358,6 +372,8 @@ enum kern_feature_id {
FEAT_SYSCALL_WRAPPER,
/* BPF multi-uprobe link support */
FEAT_UPROBE_MULTI_LINK,
+ /* Kernel supports arg:ctx tag (__arg_ctx) for global subprogs natively */
+ FEAT_ARG_CTX_TAG,
__FEAT_CNT,
};