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Diffstat (limited to 'tools/include/nolibc/arch-aarch64.h')
| -rw-r--r-- | tools/include/nolibc/arch-aarch64.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/tools/include/nolibc/arch-aarch64.h b/tools/include/nolibc/arch-aarch64.h deleted file mode 100644 index 937a348da42e..000000000000 --- a/tools/include/nolibc/arch-aarch64.h +++ /dev/null @@ -1,153 +0,0 @@ -/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ -/* - * AARCH64 specific definitions for NOLIBC - * Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu> - */ - -#ifndef _NOLIBC_ARCH_AARCH64_H -#define _NOLIBC_ARCH_AARCH64_H - -#include "compiler.h" -#include "crt.h" - -/* Syscalls for AARCH64 : - * - registers are 64-bit - * - stack is 16-byte aligned - * - syscall number is passed in x8 - * - arguments are in x0, x1, x2, x3, x4, x5 - * - the system call is performed by calling svc 0 - * - syscall return comes in x0. - * - the arguments are cast to long and assigned into the target registers - * which are then simply passed as registers to the asm code, so that we - * don't have to experience issues with register constraints. - */ - -#define my_syscall0(num) \ -({ \ - register long _num __asm__ ("x8") = (num); \ - register long _arg1 __asm__ ("x0"); \ - \ - __asm__ volatile ( \ - "svc #0\n" \ - : "=r"(_arg1) \ - : "r"(_num) \ - : "memory", "cc" \ - ); \ - _arg1; \ -}) - -#define my_syscall1(num, arg1) \ -({ \ - register long _num __asm__ ("x8") = (num); \ - register long _arg1 __asm__ ("x0") = (long)(arg1); \ - \ - __asm__ volatile ( \ - "svc #0\n" \ - : "=r"(_arg1) \ - : "r"(_arg1), \ - "r"(_num) \ - : "memory", "cc" \ - ); \ - _arg1; \ -}) - -#define my_syscall2(num, arg1, arg2) \ -({ \ - register long _num __asm__ ("x8") = (num); \ - register long _arg1 __asm__ ("x0") = (long)(arg1); \ - register long _arg2 __asm__ ("x1") = (long)(arg2); \ - \ - __asm__ volatile ( \ - "svc #0\n" \ - : "=r"(_arg1) \ - : "r"(_arg1), "r"(_arg2), \ - "r"(_num) \ - : "memory", "cc" \ - ); \ - _arg1; \ -}) - -#define my_syscall3(num, arg1, arg2, arg3) \ -({ \ - register long _num __asm__ ("x8") = (num); \ - register long _arg1 __asm__ ("x0") = (long)(arg1); \ - register long _arg2 __asm__ ("x1") = (long)(arg2); \ - register long _arg3 __asm__ ("x2") = (long)(arg3); \ - \ - __asm__ volatile ( \ - "svc #0\n" \ - : "=r"(_arg1) \ - : "r"(_arg1), "r"(_arg2), "r"(_arg3), \ - "r"(_num) \ - : "memory", "cc" \ - ); \ - _arg1; \ -}) - -#define my_syscall4(num, arg1, arg2, arg3, arg4) \ -({ \ - register long _num __asm__ ("x8") = (num); \ - register long _arg1 __asm__ ("x0") = (long)(arg1); \ - register long _arg2 __asm__ ("x1") = (long)(arg2); \ - register long _arg3 __asm__ ("x2") = (long)(arg3); \ - register long _arg4 __asm__ ("x3") = (long)(arg4); \ - \ - __asm__ volatile ( \ - "svc #0\n" \ - : "=r"(_arg1) \ - : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), \ - "r"(_num) \ - : "memory", "cc" \ - ); \ - _arg1; \ -}) - -#define my_syscall5(num, arg1, arg2, arg3, arg4, arg5) \ -({ \ - register long _num __asm__ ("x8") = (num); \ - register long _arg1 __asm__ ("x0") = (long)(arg1); \ - register long _arg2 __asm__ ("x1") = (long)(arg2); \ - register long _arg3 __asm__ ("x2") = (long)(arg3); \ - register long _arg4 __asm__ ("x3") = (long)(arg4); \ - register long _arg5 __asm__ ("x4") = (long)(arg5); \ - \ - __asm__ volatile ( \ - "svc #0\n" \ - : "=r" (_arg1) \ - : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ - "r"(_num) \ - : "memory", "cc" \ - ); \ - _arg1; \ -}) - -#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \ -({ \ - register long _num __asm__ ("x8") = (num); \ - register long _arg1 __asm__ ("x0") = (long)(arg1); \ - register long _arg2 __asm__ ("x1") = (long)(arg2); \ - register long _arg3 __asm__ ("x2") = (long)(arg3); \ - register long _arg4 __asm__ ("x3") = (long)(arg4); \ - register long _arg5 __asm__ ("x4") = (long)(arg5); \ - register long _arg6 __asm__ ("x5") = (long)(arg6); \ - \ - __asm__ volatile ( \ - "svc #0\n" \ - : "=r" (_arg1) \ - : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ - "r"(_arg6), "r"(_num) \ - : "memory", "cc" \ - ); \ - _arg1; \ -}) - -/* startup code */ -void __attribute__((weak, noreturn)) __nolibc_entrypoint __no_stack_protector _start(void) -{ - __asm__ volatile ( - "mov x0, sp\n" /* save stack pointer to x0, as arg1 of _start_c */ - "bl _start_c\n" /* transfer to c runtime */ - ); - __nolibc_entrypoint_epilogue(); -} -#endif /* _NOLIBC_ARCH_AARCH64_H */ |