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selftests/bpf: fix attach_probe on s390 

attach_probe test fails, because it cannot install a kprobe on a
non-existent sys_nanosleep symbol.

Use the correct symbol name for the nanosleep syscall on 64-bit s390.
Don't bother adding one for 31-bit mode, since tests are compiled only
in 64-bit mode.

Fixes: 1e8611bbdf ("selftests/bpf: add kprobe/uprobe selftests")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Ilya Leoshkevich 2019-07-12 15:41:42 +02:00 committed by Daniel Borkmann
parent 896bcc908a
commit 025c0c0917
1 changed files with 2 additions and 0 deletions
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2
tools/testing/selftests/bpf/prog_tests/attach_probe.c
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@ -23,6 +23,8 @@ ssize_t get_base_addr() {
#ifdef __x86_64__
#define SYS_KPROBE_NAME "__x64_sys_nanosleep"
#elif defined(__s390x__)
#define SYS_KPROBE_NAME "__s390x_sys_nanosleep"
#else
#define SYS_KPROBE_NAME "sys_nanosleep"
#endif