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| author | Alexei Starovoitov <ast@kernel.org> | 2026-04-10 13:55:54 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-04-10 15:04:51 -0700 |
| commit | 2ad45b414b8779ba5c50f746fd767926cccde729 (patch) | |
| tree | 0889572d996f048ec51d828133080a60f582b41a /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | cf3ee1ecf3466ddb978a58df9d5b638e7dff673d (diff) | |
bpf: Add spis_*() helpers for 4-byte stack slot bitmasks
Add helper functions for manipulating u64[2] bitmasks that represent
4-byte stack slot liveness. The 512-byte BPF stack is divided into
128 4-byte slots, requiring 128 bits (two u64s) to track.
These will be used by the static stack liveness analysis in the
next commit.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260410-patch-set-v4-3-5d4eecb343db@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions