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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/include/nolibc/arch.h
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/* SPDX-License-Identifier: LGPL-2.1 OR MIT */

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/*

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 * Copyright (C) 2017-2022 Willy Tarreau <[email protected]>

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 */

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/* Below comes the architecture-specific code. For each architecture, we have

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 * the syscall declarations and the _start code definition. This is the only

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 * global part. On all architectures the kernel puts everything in the stack

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 * before jumping to _start just above us, without any return address (_start

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 * is not a function but an entry point). So at the stack pointer we find argc.

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 * Then argv[] begins, and ends at the first NULL. Then we have envp which

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 * starts and ends with a NULL as well. So envp=argv+argc+1.

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 */

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#ifndef _NOLIBC_ARCH_H

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#define _NOLIBC_ARCH_H

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#if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)

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#include "arch-x86.h"

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#elif defined(__ARM_EABI__)

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#include "arch-arm.h"

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#elif defined(__aarch64__)

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#include "arch-arm64.h"

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#elif defined(__mips__)

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#include "arch-mips.h"

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#elif defined(__powerpc__)

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#include "arch-powerpc.h"

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#elif defined(__riscv)

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#include "arch-riscv.h"

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#elif defined(__s390x__) || defined(__s390__)

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#include "arch-s390.h"

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#elif defined(__loongarch__)

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#include "arch-loongarch.h"

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#elif defined(__sparc__)

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#include "arch-sparc.h"

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#elif defined(__m68k__)

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#include "arch-m68k.h"

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#elif defined(__sh__)

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#include "arch-sh.h"

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#else

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#error Unsupported Architecture

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#endif

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#endif /* _NOLIBC_ARCH_H */

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