b0e787276b
This change copies over amd64-cloudabi64.c to aarch64-cloudabi.c and adjusts it to fetch the proper registers on aarch64. To reduce the amount of shared code, the errno conversion function is moved into a separate source file. Reviewed by: jhb, andrew Differential Revision: https://reviews.freebsd.org/D4023
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*-
|
|
* 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 <errno.h>
|
|
#include <stdio.h>
|
|
|
|
#include "cloudabi.h"
|
|
#include "cloudabi64_syscalls.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;
|
|
if (*errorp)
|
|
retval[0] = cloudabi_convert_errno(retval[0]);
|
|
return (0);
|
|
}
|
|
|
|
static struct procabi amd64_cloudabi64 = {
|
|
"CloudABI ELF64",
|
|
syscallnames,
|
|
nitems(syscallnames),
|
|
amd64_cloudabi64_fetch_args,
|
|
amd64_cloudabi64_fetch_retval
|
|
};
|
|
|
|
PROCABI(amd64_cloudabi64);
|