Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
144 lines
7.2 KiB
C
144 lines
7.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* m68k specific definitions for NOLIBC
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* Copyright (C) 2025 Daniel Palmer<daniel@thingy.jp>
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*
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* Roughly based on one or more of the other arch files.
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*
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*/
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#ifndef _NOLIBC_ARCH_M68K_H
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#define _NOLIBC_ARCH_M68K_H
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#include "compiler.h"
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#include "crt.h"
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#define _NOLIBC_SYSCALL_CLOBBERLIST "memory"
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#define my_syscall0(num) \
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({ \
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register long _num __asm__ ("d0") = (num); \
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\
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__asm__ volatile ( \
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"trap #0\n" \
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: "+r"(_num) \
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: "r"(_num) \
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: _NOLIBC_SYSCALL_CLOBBERLIST \
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); \
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_num; \
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})
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#define my_syscall1(num, arg1) \
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({ \
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register long _num __asm__ ("d0") = (num); \
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register long _arg1 __asm__ ("d1") = (long)(arg1); \
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\
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__asm__ volatile ( \
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"trap #0\n" \
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: "+r"(_num) \
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: "r"(_arg1) \
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: _NOLIBC_SYSCALL_CLOBBERLIST \
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); \
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_num; \
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})
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#define my_syscall2(num, arg1, arg2) \
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({ \
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register long _num __asm__ ("d0") = (num); \
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register long _arg1 __asm__ ("d1") = (long)(arg1); \
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register long _arg2 __asm__ ("d2") = (long)(arg2); \
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\
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__asm__ volatile ( \
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"trap #0\n" \
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: "+r"(_num) \
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: "r"(_arg1), "r"(_arg2) \
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: _NOLIBC_SYSCALL_CLOBBERLIST \
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); \
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_num; \
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})
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#define my_syscall3(num, arg1, arg2, arg3) \
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({ \
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register long _num __asm__ ("d0") = (num); \
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register long _arg1 __asm__ ("d1") = (long)(arg1); \
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register long _arg2 __asm__ ("d2") = (long)(arg2); \
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register long _arg3 __asm__ ("d3") = (long)(arg3); \
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\
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__asm__ volatile ( \
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"trap #0\n" \
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: "+r"(_num) \
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: "r"(_arg1), "r"(_arg2), "r"(_arg3) \
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: _NOLIBC_SYSCALL_CLOBBERLIST \
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); \
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_num; \
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})
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#define my_syscall4(num, arg1, arg2, arg3, arg4) \
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({ \
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register long _num __asm__ ("d0") = (num); \
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register long _arg1 __asm__ ("d1") = (long)(arg1); \
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register long _arg2 __asm__ ("d2") = (long)(arg2); \
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register long _arg3 __asm__ ("d3") = (long)(arg3); \
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register long _arg4 __asm__ ("d4") = (long)(arg4); \
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\
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__asm__ volatile ( \
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"trap #0\n" \
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: "+r" (_num) \
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: "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4) \
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: _NOLIBC_SYSCALL_CLOBBERLIST \
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); \
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_num; \
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})
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#define my_syscall5(num, arg1, arg2, arg3, arg4, arg5) \
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({ \
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register long _num __asm__ ("d0") = (num); \
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register long _arg1 __asm__ ("d1") = (long)(arg1); \
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register long _arg2 __asm__ ("d2") = (long)(arg2); \
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register long _arg3 __asm__ ("d3") = (long)(arg3); \
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register long _arg4 __asm__ ("d4") = (long)(arg4); \
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register long _arg5 __asm__ ("d5") = (long)(arg5); \
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\
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__asm__ volatile ( \
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"trap #0\n" \
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: "+r" (_num) \
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: "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5) \
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: _NOLIBC_SYSCALL_CLOBBERLIST \
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); \
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_num; \
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})
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#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \
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({ \
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register long _num __asm__ ("d0") = (num); \
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register long _arg1 __asm__ ("d1") = (long)(arg1); \
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register long _arg2 __asm__ ("d2") = (long)(arg2); \
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register long _arg3 __asm__ ("d3") = (long)(arg3); \
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register long _arg4 __asm__ ("d4") = (long)(arg4); \
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register long _arg5 __asm__ ("d5") = (long)(arg5); \
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register long _arg6 __asm__ ("a0") = (long)(arg6); \
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\
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__asm__ volatile ( \
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"trap #0\n" \
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: "+r" (_num) \
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: "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \
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"r"(_arg6) \
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: _NOLIBC_SYSCALL_CLOBBERLIST \
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); \
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_num; \
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})
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#ifndef NOLIBC_NO_RUNTIME
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void _start(void);
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void __attribute__((weak, noreturn)) __nolibc_entrypoint __no_stack_protector _start(void)
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{
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__asm__ volatile (
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"movel %sp, %sp@-\n"
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"jsr _start_c\n"
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);
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__nolibc_entrypoint_epilogue();
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}
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#endif /* NOLIBC_NO_RUNTIME */
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#endif /* _NOLIBC_ARCH_M68K_H */
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