perf bpf: Remove now unused BPF headers

	$(call QUIET_INSTALL, libexec) \

		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'

ifndef NO_LIBBPF

	$(call QUIET_INSTALL, bpf-headers) \

		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'; \

		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf/linux'; \

		$(INSTALL) include/bpf/*.h -m 644 -t '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'; \

		$(INSTALL) include/bpf/linux/*.h -m 644 -t '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf/linux'

	$(call QUIET_INSTALL, bpf-examples) \

		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'; \

		$(INSTALL) examples/bpf/*.c -m 644 -t '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'

// 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 bpf_map(name, _type, type_key, type_val, _max_entries)	\

struct bpf_map SEC("maps") name = {				\

	.type	     = BPF_MAP_TYPE_##_type,			\

	.key_size    = sizeof(type_key),			\

	.value_size  = sizeof(type_val),			\

	.max_entries = _max_entries,				\

};								\

struct ____btf_map_##name {					\

	type_key key;						\

	type_val value;                                 	\

};								\

struct ____btf_map_##name __attribute__((section(".maps." #name), used)) \

	____btf_map_##name = { }

/*

 * FIXME: this should receive .max_entries as a parameter, as careful

 *	  tuning of these limits is needed to avoid hitting limits that

 *	  prevents other BPF constructs, such as tracepoint handlers,

 *	  to get installed, with cryptic messages from libbpf, etc.

 *	  For the current need, 'perf trace --filter-pids', 64 should

 *	  be good enough, but this surely needs to be revisited.

 */

#define pid_map(name, value_type) bpf_map(name, HASH, pid_t, value_type, 64)

static int (*bpf_map_update_elem)(struct bpf_map *map, void *key, void *value, u64 flags) = (void *)BPF_FUNC_map_update_elem;

static void *(*bpf_map_lookup_elem)(struct bpf_map *map, void *key) = (void *)BPF_FUNC_map_lookup_elem;

static void (*bpf_tail_call)(void *ctx, void *map, int index) = (void *)BPF_FUNC_tail_call;

#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;

static int (*perf_event_output)(void *, struct bpf_map *, int, void *, unsigned long) = (void *)BPF_FUNC_perf_event_output;

#endif /* _PERF_BPF_H */

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

#ifndef _UAPI_LINUX_SOCKET_H

#define _UAPI_LINUX_SOCKET_H

/*

 * Desired design of maximum size and alignment (see RFC2553)

 */

#define _K_SS_MAXSIZE	128	/* Implementation specific max size */

#define _K_SS_ALIGNSIZE	(__alignof__ (struct sockaddr *))

				/* Implementation specific desired alignment */

typedef unsigned short __kernel_sa_family_t;

struct __kernel_sockaddr_storage {

	__kernel_sa_family_t	ss_family;		/* address family */

	/* Following field(s) are implementation specific */

	char		__data[_K_SS_MAXSIZE - sizeof(unsigned short)];

				/* space to achieve desired size, */

				/* _SS_MAXSIZE value minus size of ss_family */

} __attribute__ ((aligned(_K_SS_ALIGNSIZE)));	/* force desired alignment */

#define sockaddr_storage __kernel_sockaddr_storage

#endif /* _UAPI_LINUX_SOCKET_H */

// SPDX-License-Identifier: LGPL-2.1

#ifndef _PERF_BPF_PID_FILTER_

#define _PERF_BPF_PID_FILTER_

#include <bpf.h>

#define pid_filter(name) pid_map(name, bool)

static int pid_filter__add(struct bpf_map *pids, pid_t pid)

{

	bool value = true;

	return bpf_map_update_elem(pids, &pid, &value, BPF_NOEXIST);

}

static bool pid_filter__has(struct bpf_map *pids, pid_t pid)

{

	return bpf_map_lookup_elem(pids, &pid) != NULL;

}

#endif // _PERF_BPF_PID_FILTER_

// SPDX-License-Identifier: GPL-2.0

#include <bpf.h>

struct bpf_map SEC("maps") __bpf_stdout__ = {

       .type = BPF_MAP_TYPE_PERF_EVENT_ARRAY,

       .key_size = sizeof(int),

       .value_size = sizeof(u32),

       .max_entries = __NR_CPUS__,

};

#define puts(from) \

	({ const int __len = sizeof(from); \

	   char __from[__len] = from; \

	   perf_event_output(args, &__bpf_stdout__, BPF_F_CURRENT_CPU, \

			  &__from, __len & (sizeof(from) - 1)); })