From: Alexei Starovoitov <ast@xxxxxxxxxx>
[ Upstream commit a0791f0df7d212c245761538b17a9ea93607b667 ]
vmlinux BTF has more than 64k types.
Its string section is also at the offset larger than 64k.
Adjust both limits to make in-kernel BTF verifier successfully parse in-kernel BTF.
Fixes: 69b693f0aefa ("bpf: btf: Introduce BPF Type Format (BTF)")
Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
Acked-by: Martin KaFai Lau <kafai@xxxxxx>
Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
include/uapi/linux/btf.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/uapi/linux/btf.h b/include/uapi/linux/btf.h
index 972265f328717..1e2662ff05291 100644
--- a/include/uapi/linux/btf.h
+++ b/include/uapi/linux/btf.h
@@ -22,9 +22,9 @@ struct btf_header {
};
/* Max # of type identifier */
-#define BTF_MAX_TYPE 0x0000ffff
+#define BTF_MAX_TYPE 0x000fffff
/* Max offset into the string section */
-#define BTF_MAX_NAME_OFFSET 0x0000ffff
+#define BTF_MAX_NAME_OFFSET 0x00ffffff
/* Max # of struct/union/enum members or func args */
#define BTF_MAX_VLEN 0xffff
--
2.20.1
