linux/arch/arm64/include/asm/cfi.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_ARM64_CFI_H
#define _ASM_ARM64_CFI_H

#define __bpfcall

#endif /* _ASM_ARM64_CFI_H */
arm64/cfi,bpf: Support kCFI + BPF on arm64 Currently, bpf_dispatcher_*_func() is marked with `__nocfi` therefore calling BPF programs from this interface doesn't cause CFI warnings. When BPF programs are called directly from C: from BPF helpers or struct_ops, CFI warnings are generated. Implement proper CFI prologues for the BPF programs and callbacks and drop __nocfi for arm64. Fix the trampoline generation code to emit kCFI prologue when a struct_ops trampoline is being prepared. Signed-off-by: Puranjay Mohan <puranjay12@gmail.com> Co-developed-by: Maxwell Bland <mbland@motorola.com> Signed-off-by: Maxwell Bland <mbland@motorola.com> Co-developed-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Tested-by: Dao Huang <huangdao1@oppo.com> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20250801001004.1859976-8-samitolvanen@google.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> 2025-08-01 00:10:08 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#ifndef _ASM_ARM64_CFI_H`
			`#define _ASM_ARM64_CFI_H`

			`#define __bpfcall`

			`#endif /* _ASM_ARM64_CFI_H */`