leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

selftests/bpf: Split off tracing-only helpers into bpf_tracing.h

Browse Source 
Split-off PT_REGS-related helpers into bpf_tracing.h header. Adjust
selftests and samples to include it where necessary.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20191008175942.1769476-5-andriin@fb.com
This commit is contained in:
Andrii Nakryiko 2019-10-08 10:59:39 -07:00 committed by Daniel Borkmann
parent 694731e8ea
commit 3ac4dbe3dd
18 changed files with 211 additions and 190 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
samples/bpf/map_perf_test_kern.c
View File

@ -10,6 +10,7 @@
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_legacy.h"
#include "bpf_tracing.h"
#define MAX_ENTRIES 1000
#define MAX_NR_CPUS 1024

1
samples/bpf/offwaketime_kern.c
View File

@ -6,6 +6,7 @@
*/
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
#include <uapi/linux/ptrace.h>
#include <uapi/linux/perf_event.h>
#include <linux/version.h>

1
samples/bpf/sampleip_kern.c
View File

@ -9,6 +9,7 @@
#include <uapi/linux/bpf.h>
#include <uapi/linux/bpf_perf_event.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
#define MAX_IPS 8192

1
samples/bpf/spintest_kern.c
View File

@ -10,6 +10,7 @@
#include <uapi/linux/bpf.h>
#include <uapi/linux/perf_event.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
struct bpf_map_def SEC("maps") my_map = {
.type = BPF_MAP_TYPE_HASH,

1
samples/bpf/test_map_in_map_kern.c
View File

@ -12,6 +12,7 @@
#include <uapi/linux/in6.h>
#include "bpf_helpers.h"
#include "bpf_legacy.h"
#include "bpf_tracing.h"
#define MAX_NR_PORTS 65536

1
samples/bpf/test_overhead_kprobe_kern.c
View File

@ -8,6 +8,7 @@
#include <linux/ptrace.h>
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
#define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;})

1
samples/bpf/test_probe_write_user_kern.c
View File

@ -9,6 +9,7 @@
#include <uapi/linux/bpf.h>
#include <linux/version.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
struct bpf_map_def SEC("maps") dnat_map = {
.type = BPF_MAP_TYPE_HASH,

1
samples/bpf/trace_event_kern.c
View File

@ -10,6 +10,7 @@
#include <uapi/linux/bpf_perf_event.h>
#include <uapi/linux/perf_event.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
struct key_t {
char comm[TASK_COMM_LEN];

1
samples/bpf/tracex1_kern.c
View File

@ -9,6 +9,7 @@
#include <uapi/linux/bpf.h>
#include <linux/version.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
#define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;})

1
samples/bpf/tracex2_kern.c
View File

@ -9,6 +9,7 @@
#include <linux/version.h>
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
struct bpf_map_def SEC("maps") my_map = {
.type = BPF_MAP_TYPE_HASH,

1
samples/bpf/tracex3_kern.c
View File

@ -9,6 +9,7 @@
#include <linux/version.h>
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
struct bpf_map_def SEC("maps") my_map = {
.type = BPF_MAP_TYPE_HASH,

1
samples/bpf/tracex4_kern.c
View File

@ -8,6 +8,7 @@
#include <linux/version.h>
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
struct pair {
u64 val;

1
samples/bpf/tracex5_kern.c
View File

@ -11,6 +11,7 @@
#include <uapi/linux/unistd.h>
#include "syscall_nrs.h"
#include "bpf_helpers.h"
#include "bpf_tracing.h"
#define PROG(F) SEC("kprobe/"__stringify(F)) int bpf_func_##F

190
tools/testing/selftests/bpf/bpf_helpers.h
View File

@ -32,196 +32,6 @@ struct bpf_map_def {
unsigned int map_flags;
};
/* Scan the ARCH passed in from ARCH env variable (see Makefile) */
#if defined(__TARGET_ARCH_x86)
#define bpf_target_x86
#define bpf_target_defined
#elif defined(__TARGET_ARCH_s390)
#define bpf_target_s390
#define bpf_target_defined
#elif defined(__TARGET_ARCH_arm)
#define bpf_target_arm
#define bpf_target_defined
#elif defined(__TARGET_ARCH_arm64)
#define bpf_target_arm64
#define bpf_target_defined
#elif defined(__TARGET_ARCH_mips)
#define bpf_target_mips
#define bpf_target_defined
#elif defined(__TARGET_ARCH_powerpc)
#define bpf_target_powerpc
#define bpf_target_defined
#elif defined(__TARGET_ARCH_sparc)
#define bpf_target_sparc
#define bpf_target_defined
#else
#undef bpf_target_defined
#endif
/* Fall back to what the compiler says */
#ifndef bpf_target_defined
#if defined(__x86_64__)
#define bpf_target_x86
#elif defined(__s390__)
#define bpf_target_s390
#elif defined(__arm__)
#define bpf_target_arm
#elif defined(__aarch64__)
#define bpf_target_arm64
#elif defined(__mips__)
#define bpf_target_mips
#elif defined(__powerpc__)
#define bpf_target_powerpc
#elif defined(__sparc__)
#define bpf_target_sparc
#endif
#endif
#if defined(bpf_target_x86)
#ifdef __KERNEL__
#define PT_REGS_PARM1(x) ((x)->di)
#define PT_REGS_PARM2(x) ((x)->si)
#define PT_REGS_PARM3(x) ((x)->dx)
#define PT_REGS_PARM4(x) ((x)->cx)
#define PT_REGS_PARM5(x) ((x)->r8)
#define PT_REGS_RET(x) ((x)->sp)
#define PT_REGS_FP(x) ((x)->bp)
#define PT_REGS_RC(x) ((x)->ax)
#define PT_REGS_SP(x) ((x)->sp)
#define PT_REGS_IP(x) ((x)->ip)
#else
#ifdef __i386__
/* i386 kernel is built with -mregparm=3 */
#define PT_REGS_PARM1(x) ((x)->eax)
#define PT_REGS_PARM2(x) ((x)->edx)
#define PT_REGS_PARM3(x) ((x)->ecx)
#define PT_REGS_PARM4(x) 0
#define PT_REGS_PARM5(x) 0
#define PT_REGS_RET(x) ((x)->esp)
#define PT_REGS_FP(x) ((x)->ebp)
#define PT_REGS_RC(x) ((x)->eax)
#define PT_REGS_SP(x) ((x)->esp)
#define PT_REGS_IP(x) ((x)->eip)
#else
#define PT_REGS_PARM1(x) ((x)->rdi)
#define PT_REGS_PARM2(x) ((x)->rsi)
#define PT_REGS_PARM3(x) ((x)->rdx)
#define PT_REGS_PARM4(x) ((x)->rcx)
#define PT_REGS_PARM5(x) ((x)->r8)
#define PT_REGS_RET(x) ((x)->rsp)
#define PT_REGS_FP(x) ((x)->rbp)
#define PT_REGS_RC(x) ((x)->rax)
#define PT_REGS_SP(x) ((x)->rsp)
#define PT_REGS_IP(x) ((x)->rip)
#endif
#endif
#elif defined(bpf_target_s390)
/* s390 provides user_pt_regs instead of struct pt_regs to userspace */
struct pt_regs;
#define PT_REGS_S390 const volatile user_pt_regs
#define PT_REGS_PARM1(x) (((PT_REGS_S390 *)(x))->gprs[2])
#define PT_REGS_PARM2(x) (((PT_REGS_S390 *)(x))->gprs[3])
#define PT_REGS_PARM3(x) (((PT_REGS_S390 *)(x))->gprs[4])
#define PT_REGS_PARM4(x) (((PT_REGS_S390 *)(x))->gprs[5])
#define PT_REGS_PARM5(x) (((PT_REGS_S390 *)(x))->gprs[6])
#define PT_REGS_RET(x) (((PT_REGS_S390 *)(x))->gprs[14])
/* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_FP(x) (((PT_REGS_S390 *)(x))->gprs[11])
#define PT_REGS_RC(x) (((PT_REGS_S390 *)(x))->gprs[2])
#define PT_REGS_SP(x) (((PT_REGS_S390 *)(x))->gprs[15])
#define PT_REGS_IP(x) (((PT_REGS_S390 *)(x))->psw.addr)
#elif defined(bpf_target_arm)
#define PT_REGS_PARM1(x) ((x)->uregs[0])
#define PT_REGS_PARM2(x) ((x)->uregs[1])
#define PT_REGS_PARM3(x) ((x)->uregs[2])
#define PT_REGS_PARM4(x) ((x)->uregs[3])
#define PT_REGS_PARM5(x) ((x)->uregs[4])
#define PT_REGS_RET(x) ((x)->uregs[14])
#define PT_REGS_FP(x) ((x)->uregs[11]) /* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_RC(x) ((x)->uregs[0])
#define PT_REGS_SP(x) ((x)->uregs[13])
#define PT_REGS_IP(x) ((x)->uregs[12])
#elif defined(bpf_target_arm64)
/* arm64 provides struct user_pt_regs instead of struct pt_regs to userspace */
struct pt_regs;
#define PT_REGS_ARM64 const volatile struct user_pt_regs
#define PT_REGS_PARM1(x) (((PT_REGS_ARM64 *)(x))->regs[0])
#define PT_REGS_PARM2(x) (((PT_REGS_ARM64 *)(x))->regs[1])
#define PT_REGS_PARM3(x) (((PT_REGS_ARM64 *)(x))->regs[2])
#define PT_REGS_PARM4(x) (((PT_REGS_ARM64 *)(x))->regs[3])
#define PT_REGS_PARM5(x) (((PT_REGS_ARM64 *)(x))->regs[4])
#define PT_REGS_RET(x) (((PT_REGS_ARM64 *)(x))->regs[30])
/* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_FP(x) (((PT_REGS_ARM64 *)(x))->regs[29])
#define PT_REGS_RC(x) (((PT_REGS_ARM64 *)(x))->regs[0])
#define PT_REGS_SP(x) (((PT_REGS_ARM64 *)(x))->sp)
#define PT_REGS_IP(x) (((PT_REGS_ARM64 *)(x))->pc)
#elif defined(bpf_target_mips)
#define PT_REGS_PARM1(x) ((x)->regs[4])
#define PT_REGS_PARM2(x) ((x)->regs[5])
#define PT_REGS_PARM3(x) ((x)->regs[6])
#define PT_REGS_PARM4(x) ((x)->regs[7])
#define PT_REGS_PARM5(x) ((x)->regs[8])
#define PT_REGS_RET(x) ((x)->regs[31])
#define PT_REGS_FP(x) ((x)->regs[30]) /* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_RC(x) ((x)->regs[1])
#define PT_REGS_SP(x) ((x)->regs[29])
#define PT_REGS_IP(x) ((x)->cp0_epc)
#elif defined(bpf_target_powerpc)
#define PT_REGS_PARM1(x) ((x)->gpr[3])
#define PT_REGS_PARM2(x) ((x)->gpr[4])
#define PT_REGS_PARM3(x) ((x)->gpr[5])
#define PT_REGS_PARM4(x) ((x)->gpr[6])
#define PT_REGS_PARM5(x) ((x)->gpr[7])
#define PT_REGS_RC(x) ((x)->gpr[3])
#define PT_REGS_SP(x) ((x)->sp)
#define PT_REGS_IP(x) ((x)->nip)
#elif defined(bpf_target_sparc)
#define PT_REGS_PARM1(x) ((x)->u_regs[UREG_I0])
#define PT_REGS_PARM2(x) ((x)->u_regs[UREG_I1])
#define PT_REGS_PARM3(x) ((x)->u_regs[UREG_I2])
#define PT_REGS_PARM4(x) ((x)->u_regs[UREG_I3])
#define PT_REGS_PARM5(x) ((x)->u_regs[UREG_I4])
#define PT_REGS_RET(x) ((x)->u_regs[UREG_I7])
#define PT_REGS_RC(x) ((x)->u_regs[UREG_I0])
#define PT_REGS_SP(x) ((x)->u_regs[UREG_FP])
/* Should this also be a bpf_target check for the sparc case? */
#if defined(__arch64__)
#define PT_REGS_IP(x) ((x)->tpc)
#else
#define PT_REGS_IP(x) ((x)->pc)
#endif
#endif
#if defined(bpf_target_powerpc)
#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ (ip) = (ctx)->link; })
#define BPF_KRETPROBE_READ_RET_IP BPF_KPROBE_READ_RET_IP
#elif defined(bpf_target_sparc)
#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ (ip) = PT_REGS_RET(ctx); })
#define BPF_KRETPROBE_READ_RET_IP BPF_KPROBE_READ_RET_IP
#else
#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ \
bpf_probe_read(&(ip), sizeof(ip), (void *)PT_REGS_RET(ctx)); })
#define BPF_KRETPROBE_READ_RET_IP(ip, ctx) ({ \
bpf_probe_read(&(ip), sizeof(ip), \
(void *)(PT_REGS_FP(ctx) + sizeof(ip))); })
#endif
/*
* bpf_core_read() abstracts away bpf_probe_read() call and captures offset
* relocation for source address using __builtin_preserve_access_index()

195
tools/testing/selftests/bpf/bpf_tracing.h Normal file
View File

@ -0,0 +1,195 @@
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
#ifndef __BPF_TRACING_H__
#define __BPF_TRACING_H__
/* Scan the ARCH passed in from ARCH env variable (see Makefile) */
#if defined(__TARGET_ARCH_x86)
#define bpf_target_x86
#define bpf_target_defined
#elif defined(__TARGET_ARCH_s390)
#define bpf_target_s390
#define bpf_target_defined
#elif defined(__TARGET_ARCH_arm)
#define bpf_target_arm
#define bpf_target_defined
#elif defined(__TARGET_ARCH_arm64)
#define bpf_target_arm64
#define bpf_target_defined
#elif defined(__TARGET_ARCH_mips)
#define bpf_target_mips
#define bpf_target_defined
#elif defined(__TARGET_ARCH_powerpc)
#define bpf_target_powerpc
#define bpf_target_defined
#elif defined(__TARGET_ARCH_sparc)
#define bpf_target_sparc
#define bpf_target_defined
#else
#undef bpf_target_defined
#endif
/* Fall back to what the compiler says */
#ifndef bpf_target_defined
#if defined(__x86_64__)
#define bpf_target_x86
#elif defined(__s390__)
#define bpf_target_s390
#elif defined(__arm__)
#define bpf_target_arm
#elif defined(__aarch64__)
#define bpf_target_arm64
#elif defined(__mips__)
#define bpf_target_mips
#elif defined(__powerpc__)
#define bpf_target_powerpc
#elif defined(__sparc__)
#define bpf_target_sparc
#endif
#endif
#if defined(bpf_target_x86)
#ifdef __KERNEL__
#define PT_REGS_PARM1(x) ((x)->di)
#define PT_REGS_PARM2(x) ((x)->si)
#define PT_REGS_PARM3(x) ((x)->dx)
#define PT_REGS_PARM4(x) ((x)->cx)
#define PT_REGS_PARM5(x) ((x)->r8)
#define PT_REGS_RET(x) ((x)->sp)
#define PT_REGS_FP(x) ((x)->bp)
#define PT_REGS_RC(x) ((x)->ax)
#define PT_REGS_SP(x) ((x)->sp)
#define PT_REGS_IP(x) ((x)->ip)
#else
#ifdef __i386__
/* i386 kernel is built with -mregparm=3 */
#define PT_REGS_PARM1(x) ((x)->eax)
#define PT_REGS_PARM2(x) ((x)->edx)
#define PT_REGS_PARM3(x) ((x)->ecx)
#define PT_REGS_PARM4(x) 0
#define PT_REGS_PARM5(x) 0
#define PT_REGS_RET(x) ((x)->esp)
#define PT_REGS_FP(x) ((x)->ebp)
#define PT_REGS_RC(x) ((x)->eax)
#define PT_REGS_SP(x) ((x)->esp)
#define PT_REGS_IP(x) ((x)->eip)
#else
#define PT_REGS_PARM1(x) ((x)->rdi)
#define PT_REGS_PARM2(x) ((x)->rsi)
#define PT_REGS_PARM3(x) ((x)->rdx)
#define PT_REGS_PARM4(x) ((x)->rcx)
#define PT_REGS_PARM5(x) ((x)->r8)
#define PT_REGS_RET(x) ((x)->rsp)
#define PT_REGS_FP(x) ((x)->rbp)
#define PT_REGS_RC(x) ((x)->rax)
#define PT_REGS_SP(x) ((x)->rsp)
#define PT_REGS_IP(x) ((x)->rip)
#endif
#endif
#elif defined(bpf_target_s390)
/* s390 provides user_pt_regs instead of struct pt_regs to userspace */
struct pt_regs;
#define PT_REGS_S390 const volatile user_pt_regs
#define PT_REGS_PARM1(x) (((PT_REGS_S390 *)(x))->gprs[2])
#define PT_REGS_PARM2(x) (((PT_REGS_S390 *)(x))->gprs[3])
#define PT_REGS_PARM3(x) (((PT_REGS_S390 *)(x))->gprs[4])
#define PT_REGS_PARM4(x) (((PT_REGS_S390 *)(x))->gprs[5])
#define PT_REGS_PARM5(x) (((PT_REGS_S390 *)(x))->gprs[6])
#define PT_REGS_RET(x) (((PT_REGS_S390 *)(x))->gprs[14])
/* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_FP(x) (((PT_REGS_S390 *)(x))->gprs[11])
#define PT_REGS_RC(x) (((PT_REGS_S390 *)(x))->gprs[2])
#define PT_REGS_SP(x) (((PT_REGS_S390 *)(x))->gprs[15])
#define PT_REGS_IP(x) (((PT_REGS_S390 *)(x))->psw.addr)
#elif defined(bpf_target_arm)
#define PT_REGS_PARM1(x) ((x)->uregs[0])
#define PT_REGS_PARM2(x) ((x)->uregs[1])
#define PT_REGS_PARM3(x) ((x)->uregs[2])
#define PT_REGS_PARM4(x) ((x)->uregs[3])
#define PT_REGS_PARM5(x) ((x)->uregs[4])
#define PT_REGS_RET(x) ((x)->uregs[14])
#define PT_REGS_FP(x) ((x)->uregs[11]) /* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_RC(x) ((x)->uregs[0])
#define PT_REGS_SP(x) ((x)->uregs[13])
#define PT_REGS_IP(x) ((x)->uregs[12])
#elif defined(bpf_target_arm64)
/* arm64 provides struct user_pt_regs instead of struct pt_regs to userspace */
struct pt_regs;
#define PT_REGS_ARM64 const volatile struct user_pt_regs
#define PT_REGS_PARM1(x) (((PT_REGS_ARM64 *)(x))->regs[0])
#define PT_REGS_PARM2(x) (((PT_REGS_ARM64 *)(x))->regs[1])
#define PT_REGS_PARM3(x) (((PT_REGS_ARM64 *)(x))->regs[2])
#define PT_REGS_PARM4(x) (((PT_REGS_ARM64 *)(x))->regs[3])
#define PT_REGS_PARM5(x) (((PT_REGS_ARM64 *)(x))->regs[4])
#define PT_REGS_RET(x) (((PT_REGS_ARM64 *)(x))->regs[30])
/* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_FP(x) (((PT_REGS_ARM64 *)(x))->regs[29])
#define PT_REGS_RC(x) (((PT_REGS_ARM64 *)(x))->regs[0])
#define PT_REGS_SP(x) (((PT_REGS_ARM64 *)(x))->sp)
#define PT_REGS_IP(x) (((PT_REGS_ARM64 *)(x))->pc)
#elif defined(bpf_target_mips)
#define PT_REGS_PARM1(x) ((x)->regs[4])
#define PT_REGS_PARM2(x) ((x)->regs[5])
#define PT_REGS_PARM3(x) ((x)->regs[6])
#define PT_REGS_PARM4(x) ((x)->regs[7])
#define PT_REGS_PARM5(x) ((x)->regs[8])
#define PT_REGS_RET(x) ((x)->regs[31])
#define PT_REGS_FP(x) ((x)->regs[30]) /* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_RC(x) ((x)->regs[1])
#define PT_REGS_SP(x) ((x)->regs[29])
#define PT_REGS_IP(x) ((x)->cp0_epc)
#elif defined(bpf_target_powerpc)
#define PT_REGS_PARM1(x) ((x)->gpr[3])
#define PT_REGS_PARM2(x) ((x)->gpr[4])
#define PT_REGS_PARM3(x) ((x)->gpr[5])
#define PT_REGS_PARM4(x) ((x)->gpr[6])
#define PT_REGS_PARM5(x) ((x)->gpr[7])
#define PT_REGS_RC(x) ((x)->gpr[3])
#define PT_REGS_SP(x) ((x)->sp)
#define PT_REGS_IP(x) ((x)->nip)
#elif defined(bpf_target_sparc)
#define PT_REGS_PARM1(x) ((x)->u_regs[UREG_I0])
#define PT_REGS_PARM2(x) ((x)->u_regs[UREG_I1])
#define PT_REGS_PARM3(x) ((x)->u_regs[UREG_I2])
#define PT_REGS_PARM4(x) ((x)->u_regs[UREG_I3])
#define PT_REGS_PARM5(x) ((x)->u_regs[UREG_I4])
#define PT_REGS_RET(x) ((x)->u_regs[UREG_I7])
#define PT_REGS_RC(x) ((x)->u_regs[UREG_I0])
#define PT_REGS_SP(x) ((x)->u_regs[UREG_FP])
/* Should this also be a bpf_target check for the sparc case? */
#if defined(__arch64__)
#define PT_REGS_IP(x) ((x)->tpc)
#else
#define PT_REGS_IP(x) ((x)->pc)
#endif
#endif
#if defined(bpf_target_powerpc)
#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ (ip) = (ctx)->link; })
#define BPF_KRETPROBE_READ_RET_IP BPF_KPROBE_READ_RET_IP
#elif defined(bpf_target_sparc)
#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ (ip) = PT_REGS_RET(ctx); })
#define BPF_KRETPROBE_READ_RET_IP BPF_KPROBE_READ_RET_IP
#else
#define BPF_KPROBE_READ_RET_IP(ip, ctx) \
({ bpf_probe_read(&(ip), sizeof(ip), (void *)PT_REGS_RET(ctx)); })
#define BPF_KRETPROBE_READ_RET_IP(ip, ctx) \
({ bpf_probe_read(&(ip), sizeof(ip), \
(void *)(PT_REGS_FP(ctx) + sizeof(ip))); })
#endif
#endif

1
tools/testing/selftests/bpf/progs/loop1.c
View File

@ -7,6 +7,7 @@
#include <stdbool.h>
#include <linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
char _license[] SEC("license") = "GPL";

1
tools/testing/selftests/bpf/progs/loop2.c
View File

@ -7,6 +7,7 @@
#include <stdbool.h>
#include <linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
char _license[] SEC("license") = "GPL";

1
tools/testing/selftests/bpf/progs/loop3.c
View File

@ -7,6 +7,7 @@
#include <stdbool.h>
#include <linux/bpf.h>
#include "bpf_helpers.h"
#include "bpf_tracing.h"
char _license[] SEC("license") = "GPL";