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| author | Pu Lehui <pulehui@huawei.com> | 2022-04-19 22:52:38 +0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-04-19 21:59:35 -0700 |
| commit | 58ca8b0572cd3bbaac60d14d2b1b4f38b389ad93 (patch) | |
| tree | 7c9bebe6a96932794df0de5848e56d5031b14e05 /tools/testing/selftests/bpf/prog_tests/skb_load_bytes.c | |
| parent | libbpf: Fix usdt_cookie being cast to 32 bits (diff) | |
| download | linux-58ca8b0572cd3bbaac60d14d2b1b4f38b389ad93.tar.gz linux-58ca8b0572cd3bbaac60d14d2b1b4f38b389ad93.zip | |
libbpf: Support riscv USDT argument parsing logic
Add riscv-specific USDT argument specification parsing logic.
riscv USDT argument format is shown below:
- Memory dereference case:
"size@off(reg)", e.g. "-8@-88(s0)"
- Constant value case:
"size@val", e.g. "4@5"
- Register read case:
"size@reg", e.g. "-8@a1"
s8 will be marked as poison while it's a reg of riscv, we need
to alias it in advance. Both RV32 and RV64 have been tested.
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220419145238.482134-3-pulehui@huawei.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/skb_load_bytes.c')
0 files changed, 0 insertions, 0 deletions