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-rw-r--r--tools/include/nolibc/arch-x86_64.h218
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diff --git a/tools/include/nolibc/arch-x86_64.h b/tools/include/nolibc/arch-x86_64.h
deleted file mode 100644
index 1e40620a2b33..000000000000
--- a/tools/include/nolibc/arch-x86_64.h
+++ /dev/null
@@ -1,218 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
-/*
- * x86_64 specific definitions for NOLIBC
- * Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu>
- */
-
-#ifndef _NOLIBC_ARCH_X86_64_H
-#define _NOLIBC_ARCH_X86_64_H
-
-#include "compiler.h"
-#include "crt.h"
-
-/* Syscalls for x86_64 :
- * - registers are 64-bit
- * - syscall number is passed in rax
- * - arguments are in rdi, rsi, rdx, r10, r8, r9 respectively
- * - the system call is performed by calling the syscall instruction
- * - syscall return comes in rax
- * - rcx and r11 are clobbered, others are preserved.
- * - 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.
- * - the syscall number is always specified last in order to allow to force
- * some registers before (gcc refuses a %-register at the last position).
- * - see also x86-64 ABI section A.2 AMD64 Linux Kernel Conventions, A.2.1
- * Calling Conventions.
- *
- * Link x86-64 ABI: https://gitlab.com/x86-psABIs/x86-64-ABI/-/wikis/home
- *
- */
-
-#define my_syscall0(num) \
-({ \
- long _ret; \
- register long _num __asm__ ("rax") = (num); \
- \
- __asm__ volatile ( \
- "syscall\n" \
- : "=a"(_ret) \
- : "0"(_num) \
- : "rcx", "r11", "memory", "cc" \
- ); \
- _ret; \
-})
-
-#define my_syscall1(num, arg1) \
-({ \
- long _ret; \
- register long _num __asm__ ("rax") = (num); \
- register long _arg1 __asm__ ("rdi") = (long)(arg1); \
- \
- __asm__ volatile ( \
- "syscall\n" \
- : "=a"(_ret) \
- : "r"(_arg1), \
- "0"(_num) \
- : "rcx", "r11", "memory", "cc" \
- ); \
- _ret; \
-})
-
-#define my_syscall2(num, arg1, arg2) \
-({ \
- long _ret; \
- register long _num __asm__ ("rax") = (num); \
- register long _arg1 __asm__ ("rdi") = (long)(arg1); \
- register long _arg2 __asm__ ("rsi") = (long)(arg2); \
- \
- __asm__ volatile ( \
- "syscall\n" \
- : "=a"(_ret) \
- : "r"(_arg1), "r"(_arg2), \
- "0"(_num) \
- : "rcx", "r11", "memory", "cc" \
- ); \
- _ret; \
-})
-
-#define my_syscall3(num, arg1, arg2, arg3) \
-({ \
- long _ret; \
- register long _num __asm__ ("rax") = (num); \
- register long _arg1 __asm__ ("rdi") = (long)(arg1); \
- register long _arg2 __asm__ ("rsi") = (long)(arg2); \
- register long _arg3 __asm__ ("rdx") = (long)(arg3); \
- \
- __asm__ volatile ( \
- "syscall\n" \
- : "=a"(_ret) \
- : "r"(_arg1), "r"(_arg2), "r"(_arg3), \
- "0"(_num) \
- : "rcx", "r11", "memory", "cc" \
- ); \
- _ret; \
-})
-
-#define my_syscall4(num, arg1, arg2, arg3, arg4) \
-({ \
- long _ret; \
- register long _num __asm__ ("rax") = (num); \
- register long _arg1 __asm__ ("rdi") = (long)(arg1); \
- register long _arg2 __asm__ ("rsi") = (long)(arg2); \
- register long _arg3 __asm__ ("rdx") = (long)(arg3); \
- register long _arg4 __asm__ ("r10") = (long)(arg4); \
- \
- __asm__ volatile ( \
- "syscall\n" \
- : "=a"(_ret) \
- : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), \
- "0"(_num) \
- : "rcx", "r11", "memory", "cc" \
- ); \
- _ret; \
-})
-
-#define my_syscall5(num, arg1, arg2, arg3, arg4, arg5) \
-({ \
- long _ret; \
- register long _num __asm__ ("rax") = (num); \
- register long _arg1 __asm__ ("rdi") = (long)(arg1); \
- register long _arg2 __asm__ ("rsi") = (long)(arg2); \
- register long _arg3 __asm__ ("rdx") = (long)(arg3); \
- register long _arg4 __asm__ ("r10") = (long)(arg4); \
- register long _arg5 __asm__ ("r8") = (long)(arg5); \
- \
- __asm__ volatile ( \
- "syscall\n" \
- : "=a"(_ret) \
- : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \
- "0"(_num) \
- : "rcx", "r11", "memory", "cc" \
- ); \
- _ret; \
-})
-
-#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \
-({ \
- long _ret; \
- register long _num __asm__ ("rax") = (num); \
- register long _arg1 __asm__ ("rdi") = (long)(arg1); \
- register long _arg2 __asm__ ("rsi") = (long)(arg2); \
- register long _arg3 __asm__ ("rdx") = (long)(arg3); \
- register long _arg4 __asm__ ("r10") = (long)(arg4); \
- register long _arg5 __asm__ ("r8") = (long)(arg5); \
- register long _arg6 __asm__ ("r9") = (long)(arg6); \
- \
- __asm__ volatile ( \
- "syscall\n" \
- : "=a"(_ret) \
- : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \
- "r"(_arg6), "0"(_num) \
- : "rcx", "r11", "memory", "cc" \
- ); \
- _ret; \
-})
-
-/* startup code */
-/*
- * x86-64 System V ABI mandates:
- * 1) %rsp must be 16-byte aligned right before the function call.
- * 2) The deepest stack frame should be zero (the %rbp).
- *
- */
-void __attribute__((weak, noreturn)) __nolibc_entrypoint __no_stack_protector _start(void)
-{
- __asm__ volatile (
- "xor %ebp, %ebp\n" /* zero the stack frame */
- "mov %rsp, %rdi\n" /* save stack pointer to %rdi, as arg1 of _start_c */
- "and $-16, %rsp\n" /* %rsp must be 16-byte aligned before call */
- "call _start_c\n" /* transfer to c runtime */
- "hlt\n" /* ensure it does not return */
- );
- __nolibc_entrypoint_epilogue();
-}
-
-#define NOLIBC_ARCH_HAS_MEMMOVE
-void *memmove(void *dst, const void *src, size_t len);
-
-#define NOLIBC_ARCH_HAS_MEMCPY
-void *memcpy(void *dst, const void *src, size_t len);
-
-#define NOLIBC_ARCH_HAS_MEMSET
-void *memset(void *dst, int c, size_t len);
-
-__asm__ (
-".section .text.nolibc_memmove_memcpy\n"
-".weak memmove\n"
-".weak memcpy\n"
-"memmove:\n"
-"memcpy:\n"
- "movq %rdx, %rcx\n\t"
- "movq %rdi, %rax\n\t"
- "movq %rdi, %rdx\n\t"
- "subq %rsi, %rdx\n\t"
- "cmpq %rcx, %rdx\n\t"
- "jb 1f\n\t"
- "rep movsb\n\t"
- "retq\n"
-"1:" /* backward copy */
- "leaq -1(%rdi, %rcx, 1), %rdi\n\t"
- "leaq -1(%rsi, %rcx, 1), %rsi\n\t"
- "std\n\t"
- "rep movsb\n\t"
- "cld\n\t"
- "retq\n"
-
-".section .text.nolibc_memset\n"
-".weak memset\n"
-"memset:\n"
- "xchgl %eax, %esi\n\t"
- "movq %rdx, %rcx\n\t"
- "pushq %rdi\n\t"
- "rep stosb\n\t"
- "popq %rax\n\t"
- "retq\n"
-);
-
-#endif /* _NOLIBC_ARCH_X86_64_H */
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