From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- tools/perf/bench/mem-memcpy-x86-64-asm.S | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 tools/perf/bench/mem-memcpy-x86-64-asm.S (limited to 'tools/perf/bench/mem-memcpy-x86-64-asm.S') diff --git a/tools/perf/bench/mem-memcpy-x86-64-asm.S b/tools/perf/bench/mem-memcpy-x86-64-asm.S new file mode 100644 index 0000000000..1b9fef7efc --- /dev/null +++ b/tools/perf/bench/mem-memcpy-x86-64-asm.S @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +/* Various wrappers to make the kernel .S file build in user-space: */ + +// memcpy_orig is being defined as SYM_L_LOCAL but we need it +#define SYM_FUNC_START_LOCAL(name) \ + SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN) +#define memcpy MEMCPY /* don't hide glibc's memcpy() */ +#define altinstr_replacement text +#define globl p2align 4; .globl +#define _ASM_EXTABLE_FAULT(x, y) +#define _ASM_EXTABLE(x, y) + +#include "../../arch/x86/lib/memcpy_64.S" +/* + * We need to provide note.GNU-stack section, saying that we want + * NOT executable stack. Otherwise the final linking will assume that + * the ELF stack should not be restricted at all and set it RWX. + */ +.section .note.GNU-stack,"",@progbits -- cgit v1.2.3