From 6051a6e91eb2d31fdbd6c4f8040b491cdc03b024 Mon Sep 17 00:00:00 2001 From: "W. J. van der Laan" Date: Sun, 4 Apr 2021 07:23:13 +0000 Subject: [PATCH] lib: Base riscv64-mes-gcc support (dummy setjmp). * lib/riscv64-mes-gcc/setjmp.c: New file. (setjmp, longjmp): Add dummy implementations. Implementing these for gcc would be very involved, and does not seem necessary to get mescc to work. --- lib/riscv64-mes-gcc/setjmp.c | 40 ++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 lib/riscv64-mes-gcc/setjmp.c diff --git a/lib/riscv64-mes-gcc/setjmp.c b/lib/riscv64-mes-gcc/setjmp.c new file mode 100644 index 00000000..190c1a19 --- /dev/null +++ b/lib/riscv64-mes-gcc/setjmp.c @@ -0,0 +1,40 @@ +/* -*-comment-start: "//";comment-end:""-*- + * GNU Mes --- Maxwell Equations of Software + * Copyright © 2017,2018,2019 Jan (janneke) Nieuwenhuizen + * Copyright © 2021 W. J. van der Laan + * + * This file is part of GNU Mes. + * + * GNU Mes is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or (at + * your option) any later version. + * + * GNU Mes is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Mes. If not, see . + */ + +#include +#include + +/* This doesn't do anything at the moment. + * According to setjmp.h "It is not supported to use mes' setjmp implementation together with GCC." + * We cannot offer this functionality as a C function. It remains to be done (as assembly) for tcc. + */ + +void +longjmp (jmp_buf env, int val) +{ + exit (42); +} + +int +setjmp (jmp_buf env) +{ + return -1; +}