1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 2
3 /* Various wrappers to make the kernel .S file 3 /* Various wrappers to make the kernel .S file build in user-space: */
4 4
5 // memcpy_orig is being defined as SYM_L_LOCAL <<
6 #define SYM_FUNC_START_LOCAL(name) <<
7 SYM_START(name, SYM_L_GLOBAL, SYM_A_AL <<
8 #define memcpy MEMCPY /* don't hide glibc's me 5 #define memcpy MEMCPY /* don't hide glibc's memcpy() */
9 #define altinstr_replacement text 6 #define altinstr_replacement text
10 #define globl p2align 4; .globl 7 #define globl p2align 4; .globl
11 #define _ASM_EXTABLE_FAULT(x, y) 8 #define _ASM_EXTABLE_FAULT(x, y)
12 #define _ASM_EXTABLE(x, y) 9 #define _ASM_EXTABLE(x, y)
13 10
14 #include "../../arch/x86/lib/memcpy_64.S" 11 #include "../../arch/x86/lib/memcpy_64.S"
15 /* 12 /*
16 * We need to provide note.GNU-stack section, 13 * We need to provide note.GNU-stack section, saying that we want
17 * NOT executable stack. Otherwise the final l 14 * NOT executable stack. Otherwise the final linking will assume that
18 * the ELF stack should not be restricted at a 15 * the ELF stack should not be restricted at all and set it RWX.
19 */ 16 */
20 .section .note.GNU-stack,"",@progbits 17 .section .note.GNU-stack,"",@progbits
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