tools/testing/selftests/bpf/progs/bpf_misc.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __BPF_MISC_H__
#define __BPF_MISC_H__

#if defined(__TARGET_ARCH_x86)
#define SYSCALL_WRAPPER 1
#define SYS_PREFIX "__x64_"
#elif defined(__TARGET_ARCH_s390)
#define SYSCALL_WRAPPER 1
#define SYS_PREFIX "__s390x_"
#elif defined(__TARGET_ARCH_arm64)
#define SYSCALL_WRAPPER 1
#define SYS_PREFIX "__arm64_"
#else
#define SYSCALL_WRAPPER 0
#define SYS_PREFIX "__se_"
#endif

#endif
selftests/bpf: Extract syscall wrapper Extract the helper to set up SYS_PREFIX for fentry and kprobe selftests that use __x86_sys_* attach functions. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Kenta Tada <Kenta.Tada@sony.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220124141622.4378-2-Kenta.Tada@sony.com 2022-01-24 23:16:20 +09:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#ifndef __BPF_MISC_H__`
			`#define __BPF_MISC_H__`

			`#if defined(__TARGET_ARCH_x86)`
			`#define SYSCALL_WRAPPER 1`
			`#define SYS_PREFIX "__x64_"`
			`#elif defined(__TARGET_ARCH_s390)`
			`#define SYSCALL_WRAPPER 1`
			`#define SYS_PREFIX "__s390x_"`
			`#elif defined(__TARGET_ARCH_arm64)`
			`#define SYSCALL_WRAPPER 1`
			`#define SYS_PREFIX "__arm64_"`
			`#else`
			`#define SYSCALL_WRAPPER 0`
selftests/bpf: Use "__se_" prefix on architectures without syscall wrapper On architectures that don't use a syscall wrapper, sys_* function names are set as an alias of __se_sys_* functions. Due to this, there is no BTF associated with sys_* function names. This results in some of the test progs failing to load. Set the SYS_PREFIX to "__se_" to fix this issue. Fixes: 38261f369fb905 ("selftests/bpf: Fix probe_user test failure with clang build kernel") Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/013d632aacd3e41290445c0025db6a7055ec6e18.1643973917.git.naveen.n.rao@linux.vnet.ibm.com 2022-02-04 17:05:19 +05:30			`#define SYS_PREFIX "__se_"`
selftests/bpf: Extract syscall wrapper Extract the helper to set up SYS_PREFIX for fentry and kprobe selftests that use __x86_sys_* attach functions. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Kenta Tada <Kenta.Tada@sony.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220124141622.4378-2-Kenta.Tada@sony.com 2022-01-24 23:16:20 +09:00			`#endif`

			`#endif`