// SPDX-License-Identifier: GPL-2.0 #ifndef _PERF_BPF_H #define _PERF_BPF_H #include <uapi/linux/bpf.h> /* * A helper structure used by eBPF C program to describe map attributes to * elf_bpf loader, taken from tools/testing/selftests/bpf/bpf_helpers.h: */ struct bpf_map { unsigned int type; unsigned int key_size; unsigned int value_size; unsigned int max_entries; unsigned int map_flags; unsigned int inner_map_idx; unsigned int numa_node; }; #define SEC(NAME) __attribute__((section(NAME), used)) #define probe(function, vars) \ SEC(#function "=" #function " " #vars) function #define syscall_enter(name) \ SEC("syscalls:sys_enter_" #name) syscall_enter_ ## name #define syscall_exit(name) \ SEC("syscalls:sys_exit_" #name) syscall_exit_ ## name #define license(name) \ char _license[] SEC("license") = #name; \ int _version SEC("version") = LINUX_VERSION_CODE; static int (*probe_read)(void *dst, int size, const void *unsafe_addr) = (void *)BPF_FUNC_probe_read; static int (*probe_read_str)(void *dst, int size, const void *unsafe_addr) = (void *)BPF_FUNC_probe_read_str; #endif /* _PERF_BPF_H */