diff options
Diffstat (limited to 'tools/testing/selftests/bpf/trace_helpers.h')
-rw-r--r-- | tools/testing/selftests/bpf/trace_helpers.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/trace_helpers.h b/tools/testing/selftests/bpf/trace_helpers.h new file mode 100644 index 0000000000..876f3e711d --- /dev/null +++ b/tools/testing/selftests/bpf/trace_helpers.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __TRACE_HELPER_H +#define __TRACE_HELPER_H + +#include <bpf/libbpf.h> + +#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask)) +#define ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a)-1) + +struct ksym { + long addr; + char *name; +}; + +int load_kallsyms(void); +int load_kallsyms_refresh(void); + +struct ksym *ksym_search(long key); +long ksym_get_addr(const char *name); + +/* open kallsyms and find addresses on the fly, faster than load + search. */ +int kallsyms_find(const char *sym, unsigned long long *addr); + +void read_trace_pipe(void); + +ssize_t get_uprobe_offset(const void *addr); +ssize_t get_rel_offset(uintptr_t addr); + +int read_build_id(const char *path, char *build_id, size_t size); + +#endif |