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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /tools/perf/util/dsos.h | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/perf/util/dsos.h')
| -rw-r--r-- | tools/perf/util/dsos.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/tools/perf/util/dsos.h b/tools/perf/util/dsos.h new file mode 100644 index 000000000..a26774950 --- /dev/null +++ b/tools/perf/util/dsos.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_DSOS +#define __PERF_DSOS + +#include <stdbool.h> +#include <stdio.h> +#include <linux/list.h> +#include <linux/rbtree.h> +#include "rwsem.h" + +struct dso; +struct dso_id; +struct kmod_path; +struct machine; + +/* + * Collection of DSOs as an array for iteration speed, but sorted for O(n) + * lookup. + */ +struct dsos { + struct rw_semaphore lock; + struct dso **dsos; + unsigned int cnt; + unsigned int allocated; + bool sorted; +}; + +void dsos__init(struct dsos *dsos); +void dsos__exit(struct dsos *dsos); + +int __dsos__add(struct dsos *dsos, struct dso *dso); +int dsos__add(struct dsos *dsos, struct dso *dso); +struct dso *dsos__find(struct dsos *dsos, const char *name, bool cmp_short); + +struct dso *dsos__findnew_id(struct dsos *dsos, const char *name, const struct dso_id *id); + +bool dsos__read_build_ids(struct dsos *dsos, bool with_hits); + +size_t dsos__fprintf_buildid(struct dsos *dsos, FILE *fp, + bool (skip)(struct dso *dso, int parm), int parm); +size_t dsos__fprintf(struct dsos *dsos, FILE *fp); + +int dsos__hit_all(struct dsos *dsos); + +struct dso *dsos__findnew_module_dso(struct dsos *dsos, struct machine *machine, + struct kmod_path *m, const char *filename); + +struct dso *dsos__find_kernel_dso(struct dsos *dsos); + +int dsos__for_each_dso(struct dsos *dsos, int (*cb)(struct dso *dso, void *data), void *data); + +#endif /* __PERF_DSOS */ |