aarch64-cloudabi64.c revision 294849
1254721Semaste/*- 2254721Semaste * Copyright (c) 2015 Nuxi, https://nuxi.nl/ 3254721Semaste * 4254721Semaste * Redistribution and use in source and binary forms, with or without 5254721Semaste * modification, are permitted provided that the following conditions 6254721Semaste * are met: 7254721Semaste * 1. Redistributions of source code must retain the above copyright 8254721Semaste * notice, this list of conditions and the following disclaimer. 9254721Semaste * 2. Redistributions in binary form must reproduce the above copyright 10254721Semaste * notice, this list of conditions and the following disclaimer in the 11254721Semaste * documentation and/or other materials provided with the distribution. 12254721Semaste * 13254721Semaste * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14254721Semaste * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15254721Semaste * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16254721Semaste * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17254721Semaste * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18254721Semaste * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19254721Semaste * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20254721Semaste * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21254721Semaste * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22269024Semaste * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23254721Semaste * SUCH DAMAGE. 24254721Semaste */ 25254721Semaste 26254721Semaste#include <sys/cdefs.h> 27254721Semaste__FBSDID("$FreeBSD: head/usr.bin/truss/aarch64-cloudabi64.c 294849 2016-01-26 19:07:09Z jhb $"); 28254721Semaste 29254721Semaste#include <sys/param.h> 30254721Semaste#include <sys/ptrace.h> 31254721Semaste 32254721Semaste#include <machine/armreg.h> 33254721Semaste 34254721Semaste#include <errno.h> 35254721Semaste#include <stdio.h> 36254721Semaste#include <sysdecode.h> 37254721Semaste 38254721Semaste#include "cloudabi.h" 39254721Semaste#include "truss.h" 40254721Semaste 41254721Semastestatic int 42254721Semasteaarch64_cloudabi64_fetch_args(struct trussinfo *trussinfo, unsigned int narg) 43254721Semaste{ 44254721Semaste struct current_syscall *cs; 45254721Semaste struct reg regs; 46254721Semaste lwpid_t tid; 47254721Semaste unsigned int i; 48254721Semaste 49254721Semaste tid = trussinfo->curthread->tid; 50254721Semaste if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) == -1) { 51254721Semaste fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n"); 52254721Semaste return (-1); 53254721Semaste } 54254721Semaste 55254721Semaste cs = &trussinfo->curthread->cs; 56254721Semaste for (i = 0; i < narg && i < 8; i++) 57254721Semaste cs->args[i] = regs.x[i]; 58254721Semaste return (0); 59254721Semaste} 60254721Semaste 61254721Semastestatic int 62254721Semasteaarch64_cloudabi64_fetch_retval(struct trussinfo *trussinfo, long *retval, 63254721Semaste int *errorp) 64254721Semaste{ 65254721Semaste struct reg regs; 66254721Semaste lwpid_t tid; 67254721Semaste 68254721Semaste tid = trussinfo->curthread->tid; 69254721Semaste if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) == -1) { 70254721Semaste fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n"); 71254721Semaste return (-1); 72254721Semaste } 73254721Semaste 74254721Semaste retval[0] = regs.x[0]; 75254721Semaste retval[1] = regs.x[1]; 76254721Semaste *errorp = (regs.spsr & PSR_C) != 0; 77254721Semaste if (*errorp) 78254721Semaste retval[0] = cloudabi_convert_errno(retval[0]); 79254721Semaste return (0); 80254721Semaste} 81254721Semaste 82254721Semastestatic struct procabi aarch64_cloudabi64 = { 83254721Semaste "CloudABI ELF64", 84254721Semaste CLOUDABI64, 85254721Semaste aarch64_cloudabi64_fetch_args, 86254721Semaste aarch64_cloudabi64_fetch_retval 87254721Semaste}; 88254721Semaste 89254721SemastePROCABI(aarch64_cloudabi64); 90254721Semaste