diff options
Diffstat (limited to 'lib/libthr/arch/arm/thr_rtld_arm.c')
-rw-r--r-- | lib/libthr/arch/arm/thr_rtld_arm.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/libthr/arch/arm/thr_rtld_arm.c b/lib/libthr/arch/arm/thr_rtld_arm.c new file mode 100644 index 000000000000..35f5fe56cfff --- /dev/null +++ b/lib/libthr/arch/arm/thr_rtld_arm.c @@ -0,0 +1,67 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2024, Michal Meloun <mmel@freebsd.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice unmodified, this list of conditions, and the following + * disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <stdlib.h> +#include <string.h> + +#include "thr_private.h" + +int __aeabi_idiv(int , int ); +unsigned __aeabi_uidiv(unsigned, unsigned ); + +struct {int q; int r;} __aeabi_idivmod(int, int ); +struct {unsigned q; unsigned r;} __aeabi_uidivmod(unsigned, unsigned); + +struct {int64_t q; int64_t r;} __aeabi_ldivmod(int64_t, int64_t); +struct {uint64_t q; uint64_t r;} __aeabi_uldivmod(uint64_t, uint64_t); + +void __aeabi_memset(void *dest, size_t n, int c); +void __aeabi_memclr(void *dest, size_t n); +void __aeabi_memmove(void *dest, void *src, size_t n); +void __aeabi_memcpy(void *dest, void *src, size_t n); +void __aeabi_memcmp(void *dest, void *src, size_t n); + +void +_thr_resolve_machdep(void) +{ + char tmp[2]; + + __aeabi_idiv(1, 1); + __aeabi_uidiv(1, 1); + + __aeabi_idivmod(1, 1); + __aeabi_uidivmod(1, 1); + + __aeabi_ldivmod(1, 1); + __aeabi_uldivmod(1, 1); + + __aeabi_memset(tmp, 1, 0); + __aeabi_memclr(tmp, 1); + __aeabi_memmove(tmp, tmp + 1, 1); + __aeabi_memcpy(tmp, tmp + 1, 1); + __aeabi_memcmp(tmp, tmp + 1, 1); +} |