diff options
| author | Andrii Nakryiko <andrii@kernel.org> | 2022-07-14 22:31:46 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-07-19 09:45:34 -0700 |
| commit | 24316461200502aa5feddaa72dcbb8059503a528 (patch) | |
| tree | 2b5d98df04a55fd1cdbb67eff0355c3fb5a25cb4 /tools/testing/selftests/bpf/progs/test_skeleton.c | |
| parent | 63b8ce77b15ebf69c4b0ef4b87451e2626aa3c43 (diff) | |
selftests/bpf: validate .bss section bigger than 8MB is possible now
Add a simple big 16MB array and validate access to the very last byte of
it to make sure that kernel supports > KMALLOC_MAX_SIZE value_size for
BPF array maps (which are backing .bss in this case).
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220715053146.1291891-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_skeleton.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_skeleton.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_skeleton.c b/tools/testing/selftests/bpf/progs/test_skeleton.c index 1b1187d2967b..1a4e93f6d9df 100644 --- a/tools/testing/selftests/bpf/progs/test_skeleton.c +++ b/tools/testing/selftests/bpf/progs/test_skeleton.c @@ -51,6 +51,8 @@ int out_dynarr[4] SEC(".data.dyn") = { 1, 2, 3, 4 }; int read_mostly_var __read_mostly; int out_mostly_var; +char huge_arr[16 * 1024 * 1024]; + SEC("raw_tp/sys_enter") int handler(const void *ctx) { @@ -71,6 +73,8 @@ int handler(const void *ctx) out_mostly_var = read_mostly_var; + huge_arr[sizeof(huge_arr) - 1] = 123; + return 0; } |