diff options
Diffstat (limited to 'libexec/ld.so/riscv64/SYS.h')
| -rw-r--r-- | libexec/ld.so/riscv64/SYS.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/libexec/ld.so/riscv64/SYS.h b/libexec/ld.so/riscv64/SYS.h new file mode 100644 index 00000000000..2e7882fc04d --- /dev/null +++ b/libexec/ld.so/riscv64/SYS.h @@ -0,0 +1,47 @@ +/* $OpenBSD: SYS.h,v 1.1 2021/04/28 15:16:26 drahn Exp $ */ + +/* + * Copyright (c) 2016 Dale Rahn <drahn@openbsd.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, 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 <machine/asm.h> +#include <sys/syscall.h> + +#define SYSTRAP(x) \ + li t0, SYS_ ## x ;\ + ecall ;\ + /* XXX fence */ + +#define DL_SYSCALL(n) \ + .global __CONCAT(_dl_,n) ;\ + .type __CONCAT(_dl_,n)%function ;\ +__CONCAT(_dl_,n): ;\ + RETGUARD_SETUP(__CONCAT(_dl_,n), x15) ;\ + SYSTRAP(n) ;\ + beqz t0, 1f ;\ + sub a0, zero, a0 /* r0 = -errno */ ;\ +1: ;\ + RETGUARD_CHECK(__CONCAT(_dl_,n), x15) ;\ + ret |