UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

bpf: fix BTF limits 

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: 69b693f0ae ("bpf: btf: Introduce BPF Type Format (BTF)")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Alexei Starovoitov 2019-09-17 10:45:38 -07:00 committed by Daniel Borkmann
parent 9eea984979
commit a0791f0df7
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/uapi/linux/btf.h
View File

@ -22,9 +22,9 @@ struct btf_header {
}; };
/* Max # of type identifier */ /* Max # of type identifier */
#define BTF_MAX_TYPE 0x0000ffff #define BTF_MAX_TYPE 0x000fffff
/* Max offset into the string section */ /* 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 */ /* Max # of struct/union/enum members or func args */
#define BTF_MAX_VLEN 0xffff #define BTF_MAX_VLEN 0xffff