2 * Copyright 1997 Sean Eric Fagan
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Sean Eric Fagan
15 * 4. Neither the name of the author may be used to endorse or promote
16 * products derived from this software without specific prior written
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 /* Linux/x86_64-specific system call handling. */
37 #include <sys/ptrace.h>
39 #include <machine/reg.h>
40 #include <machine/psl.h>
43 #include <sysdecode.h>
48 amd64_linux_fetch_args(struct trussinfo *trussinfo, u_int narg)
51 struct current_syscall *cs;
54 tid = trussinfo->curthread->tid;
55 cs = &trussinfo->curthread->cs;
56 if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
57 fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
63 cs->args[5] = regs.r_r9;
65 cs->args[4] = regs.r_r8;
67 cs->args[3] = regs.r_rcx;
69 cs->args[2] = regs.r_rdx;
71 cs->args[1] = regs.r_rsi;
73 cs->args[0] = regs.r_rdi;
80 amd64_linux_fetch_retval(struct trussinfo *trussinfo, long *retval, int *errorp)
85 tid = trussinfo->curthread->tid;
86 if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
87 fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
91 retval[0] = regs.r_rax;
92 retval[1] = regs.r_rdx;
93 *errorp = !!(regs.r_rflags & PSL_C);
97 static struct procabi amd64_linux = {
100 amd64_linux_fetch_args,
101 amd64_linux_fetch_retval
104 PROCABI(amd64_linux);