Add aarch64 support to truss(1).
Reviewed by: jhb Discussed with: emaste (license) Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D3750
This commit is contained in:
parent
7ecbae3523
commit
5821213b4c
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=288493
@ -266,10 +266,8 @@ SUBDIR+= iscsictl
|
||||
|
||||
.if ${MK_KDUMP} != "no"
|
||||
SUBDIR+= kdump
|
||||
.if ${MACHINE_ARCH} != "aarch64" # ARM64TODO truss does not build
|
||||
SUBDIR+= truss
|
||||
.endif
|
||||
.endif
|
||||
|
||||
.if ${MK_KERBEROS_SUPPORT} != "no"
|
||||
SUBDIR+= compile_et
|
||||
|
110
usr.bin/truss/aarch64-fbsd.c
Normal file
110
usr.bin/truss/aarch64-fbsd.c
Normal file
@ -0,0 +1,110 @@
|
||||
/*
|
||||
* Copyright (c) 2015 The FreeBSD Foundation
|
||||
*
|
||||
* Portions of this software were developed by Konstantin Belousov
|
||||
* under sponsorship from the FreeBSD Foundation.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
/* FreeBSD/arm64-specific system call handling. */
|
||||
|
||||
#include <sys/ptrace.h>
|
||||
#include <sys/syscall.h>
|
||||
|
||||
#include <machine/reg.h>
|
||||
#include <machine/armreg.h>
|
||||
#include <machine/ucontext.h>
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include "truss.h"
|
||||
|
||||
extern const char *syscallnames[]; /* silence compiler */
|
||||
#include "syscalls.h"
|
||||
|
||||
static int
|
||||
aarch64_fetch_args(struct trussinfo *trussinfo, u_int narg)
|
||||
{
|
||||
struct reg regs;
|
||||
struct current_syscall *cs;
|
||||
lwpid_t tid;
|
||||
u_int i, reg, syscall_num;
|
||||
|
||||
tid = trussinfo->curthread->tid;
|
||||
cs = &trussinfo->curthread->cs;
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return (-1);
|
||||
}
|
||||
|
||||
/*
|
||||
* FreeBSD has two special kinds of system call redirections --
|
||||
* SYS_syscall, and SYS___syscall. The former is the old syscall()
|
||||
* routine, basically; the latter is for quad-aligned arguments.
|
||||
*
|
||||
* The system call argument count and code from ptrace() already
|
||||
* account for these, but we need to skip over the first argument.
|
||||
*/
|
||||
syscall_num = regs.x[8];
|
||||
if (syscall_num == SYS_syscall || syscall_num == SYS___syscall) {
|
||||
reg = 1;
|
||||
syscall_num = regs.x[0];
|
||||
} else {
|
||||
reg = 0;
|
||||
}
|
||||
|
||||
for (i = 0; i < narg && reg < 8; i++, reg++)
|
||||
cs->args[i] = regs.x[reg];
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
aarch64_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) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return (-1);
|
||||
}
|
||||
|
||||
retval[0] = regs.x[0];
|
||||
retval[1] = regs.x[1];
|
||||
*errorp = !!(regs.spsr & PSR_C);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static struct procabi aarch64_fbsd = {
|
||||
"FreeBSD ELF64",
|
||||
syscallnames,
|
||||
nitems(syscallnames),
|
||||
aarch64_fetch_args,
|
||||
aarch64_fetch_retval
|
||||
};
|
||||
|
||||
PROCABI(aarch64_fbsd);
|
Loading…
Reference in New Issue
Block a user