/*-
* Copyright (c) 2015 Nuxi, https://nuxi.nl/
*
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/ptrace.h>
#include <machine/psl.h>
#include <stdbool.h>
#include <stdio.h>
#include <sysdecode.h>
#include "truss.h"
static int
amd64_cloudabi64_fetch_args(struct trussinfo *trussinfo, unsigned int narg)
{
struct current_syscall *cs;
struct reg regs;
lwpid_t tid;
tid = trussinfo->curthread->tid;
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) == -1) {
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
return (-1);
}
cs = &trussinfo->curthread->cs;
if (narg >= 1)
cs->args[0] = regs.r_rdi;
if (narg >= 2)
cs->args[1] = regs.r_rsi;
if (narg >= 3)
cs->args[2] = regs.r_rdx;
if (narg >= 4)
cs->args[3] = regs.r_rcx;
if (narg >= 5)
cs->args[4] = regs.r_r8;
if (narg >= 6)
cs->args[5] = regs.r_r9;
return (0);
}
static int
amd64_cloudabi64_fetch_retval(struct trussinfo *trussinfo, long *retval,
int *errorp)
{
struct reg regs;
lwpid_t tid;
tid = trussinfo->curthread->tid;
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) == -1) {
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
return (-1);
}
retval[0] = regs.r_rax;
retval[1] = regs.r_rdx;
*errorp = (regs.r_rflags & PSL_C) != 0;
return (0);
}
static struct procabi amd64_cloudabi64 = {
"CloudABI ELF64",
SYSDECODE_ABI_CLOUDABI64,
amd64_cloudabi64_fetch_args,
amd64_cloudabi64_fetch_retval,
STAILQ_HEAD_INITIALIZER(amd64_cloudabi64.extra_syscalls),
{ NULL }
};
PROCABI(amd64_cloudabi64);
