958da104e5
At the moment tcc does not support assembler instructions with C expression operands. As a workaround read values directly from stack. * lib/linux/riscv64-mes-tcc/_exit.c * lib/linux/riscv64-mes-tcc/_write.c * lib/linux/riscv64-mes-tcc/syscall.c
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2019,2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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* Copyright © 2023 Ekaitz Zarraga <ekaitz@elenq.tech>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "mes/lib-mini.h"
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#define SYS_exit 93
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// *INDENT-OFF*
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void
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_exit (int code)
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{
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asm volatile (
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"addi a7, zero, 93\n\t"
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"ld a0, s0, -24\n\t"
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"ecall\n\t"
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);
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// not reached
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_exit (0);
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}
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