mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-29 22:43:10 +00:00
99 lines
1.9 KiB
C
99 lines
1.9 KiB
C
|
/* SPDX-License-Identifier: MIT */
|
||
|
|
/*
|
||
|
|
* Macros for asm code.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2019, Arm Limited.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _ASMDEFS_H
|
||
|
|
#define _ASMDEFS_H
|
||
|
|
|
||
|
|
#if defined(__aarch64__)
|
||
|
|
|
||
|
|
/* Branch Target Identitication support. */
|
||
|
|
#define BTI_C hint 34
|
||
|
|
#define BTI_J hint 36
|
||
|
|
/* Return address signing support (pac-ret). */
|
||
|
|
#define PACIASP hint 25; .cfi_window_save
|
||
|
|
#define AUTIASP hint 29; .cfi_window_save
|
||
|
|
|
||
|
|
/* GNU_PROPERTY_AARCH64_* macros from elf.h. */
|
||
|
|
#define FEATURE_1_AND 0xc0000000
|
||
|
|
#define FEATURE_1_BTI 1
|
||
|
|
#define FEATURE_1_PAC 2
|
||
|
|
|
||
|
|
/* Add a NT_GNU_PROPERTY_TYPE_0 note. */
|
||
|
|
#define GNU_PROPERTY(type, value) \
|
||
|
|
.section .note.gnu.property, "a"; \
|
||
|
|
.p2align 3; \
|
||
|
|
.word 4; \
|
||
|
|
.word 16; \
|
||
|
|
.word 5; \
|
||
|
|
.asciz "GNU"; \
|
||
|
|
.word type; \
|
||
|
|
.word 4; \
|
||
|
|
.word value; \
|
||
|
|
.word 0; \
|
||
|
|
.text
|
||
|
|
|
||
|
|
/* If set then the GNU Property Note section will be added to
|
||
|
|
mark objects to support BTI and PAC-RET. */
|
||
|
|
#ifndef WANT_GNU_PROPERTY
|
||
|
|
#define WANT_GNU_PROPERTY 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if WANT_GNU_PROPERTY
|
||
|
|
/* Add property note with supported features to all asm files. */
|
||
|
|
GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI|FEATURE_1_PAC)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define ENTRY_ALIGN(name, alignment) \
|
||
|
|
.global name; \
|
||
|
|
.type name,%function; \
|
||
|
|
.align alignment; \
|
||
|
|
name: \
|
||
|
|
.cfi_startproc; \
|
||
|
|
BTI_C;
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
#define END_FILE
|
||
|
|
|
||
|
|
#define ENTRY_ALIGN(name, alignment) \
|
||
|
|
.global name; \
|
||
|
|
.type name,%function; \
|
||
|
|
.align alignment; \
|
||
|
|
name: \
|
||
|
|
.cfi_startproc;
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define ENTRY(name) ENTRY_ALIGN(name, 6)
|
||
|
|
|
||
|
|
#define ENTRY_ALIAS(name) \
|
||
|
|
.global name; \
|
||
|
|
.type name,%function; \
|
||
|
|
name:
|
||
|
|
|
||
|
|
#define END(name) \
|
||
|
|
.cfi_endproc; \
|
||
|
|
.size name, .-name;
|
||
|
|
|
||
|
|
#define L(l) .L ## l
|
||
|
|
|
||
|
|
#ifdef __ILP32__
|
||
|
|
/* Sanitize padding bits of pointer arguments as per aapcs64 */
|
||
|
|
#define PTR_ARG(n) mov w##n, w##n
|
||
|
|
#else
|
||
|
|
#define PTR_ARG(n)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __ILP32__
|
||
|
|
/* Sanitize padding bits of size arguments as per aapcs64 */
|
||
|
|
#define SIZE_ARG(n) mov w##n, w##n
|
||
|
|
#else
|
||
|
|
#define SIZE_ARG(n)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|