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authorcvs2svn <cvs2svn@FreeBSD.org>2008-05-16 15:34:08 +0000
committercvs2svn <cvs2svn@FreeBSD.org>2008-05-16 15:34:08 +0000
commit63a8deb08bc8f0b2c0c29e16e71f1f663d5c6ac4 (patch)
tree4634b6346f1b23a4cd2910cc3daff372829f8953 /usr.bin/truss
parent143ec1117dc01c2ff3f08b7ed9c3bf2c9bfb3f6b (diff)
Notes
Diffstat (limited to 'usr.bin/truss')
-rw-r--r--usr.bin/truss/amd64-fbsd32.c346
-rw-r--r--usr.bin/truss/amd64-linux32.c316
-rw-r--r--usr.bin/truss/amd64linux32.conf13
-rw-r--r--usr.bin/truss/fbsd32.conf13
4 files changed, 688 insertions, 0 deletions
diff --git a/usr.bin/truss/amd64-fbsd32.c b/usr.bin/truss/amd64-fbsd32.c
new file mode 100644
index 0000000000000..64157e30c7b6a
--- /dev/null
+++ b/usr.bin/truss/amd64-fbsd32.c
@@ -0,0 +1,346 @@
+/*
+ * Copryight 1997 Sean Eric Fagan
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Sean Eric Fagan
+ * 4. Neither the name of the author may be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * 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.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+ "$FreeBSD$";
+#endif /* not lint */
+
+/*
+ * FreeBSD/i386-specific system call handling. This is probably the most
+ * complex part of the entire truss program, although I've got lots of
+ * it handled relatively cleanly now. The system call names are generated
+ * automatically, thanks to /usr/src/sys/kern/syscalls.master. The
+ * names used for the various structures are confusing, I sadly admit.
+ */
+
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <sys/ptrace.h>
+
+#include <machine/reg.h>
+#include <machine/psl.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "truss.h"
+#include "syscall.h"
+#include "extern.h"
+
+static int cpid = -1;
+
+#include "freebsd32_syscalls.h"
+
+static int nsyscalls = sizeof(freebsd32_syscallnames) /
+ sizeof(freebsd32_syscallnames[0]);
+
+/*
+ * This is what this particular file uses to keep track of a system call.
+ * It is probably not quite sufficient -- I can probably use the same
+ * structure for the various syscall personalities, and I also probably
+ * need to nest system calls (for signal handlers).
+ *
+ * 'struct syscall' describes the system call; it may be NULL, however,
+ * if we don't know about this particular system call yet.
+ */
+static struct freebsd32_syscall {
+ struct syscall *sc;
+ const char *name;
+ int number;
+ unsigned long *args;
+ unsigned int *args32;
+ int nargs; /* number of arguments -- *not* number of words! */
+ char **s_args; /* the printable arguments */
+} fsc;
+
+/* Clear up and free parts of the fsc structure. */
+static __inline void
+clear_fsc(void) {
+ if (fsc.args) {
+ free(fsc.args);
+ }
+ if (fsc.args32) {
+ free(fsc.args32);
+ }
+ if (fsc.s_args) {
+ int i;
+ for (i = 0; i < fsc.nargs; i++)
+ if (fsc.s_args[i])
+ free(fsc.s_args[i]);
+ free(fsc.s_args);
+ }
+ memset(&fsc, 0, sizeof(fsc));
+}
+
+/*
+ * Called when a process has entered a system call. nargs is the
+ * number of words, not number of arguments (a necessary distinction
+ * in some cases). Note that if the STOPEVENT() code in i386/i386/trap.c
+ * is ever changed these functions need to keep up.
+ */
+
+void
+amd64_fbsd32_syscall_entry(struct trussinfo *trussinfo, int nargs) {
+ struct reg regs;
+ int syscall_num;
+ int i;
+ unsigned long parm_offset;
+ struct syscall *sc = NULL;
+ struct ptrace_io_desc iorequest;
+ cpid = trussinfo->curthread->tid;
+
+ clear_fsc();
+
+ if (ptrace(PT_GETREGS, cpid, (caddr_t)&regs, 0) < 0)
+ {
+ fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
+ return;
+ }
+ parm_offset = regs.r_rsp + sizeof(int);
+
+ /*
+ * FreeBSD has two special kinds of system call redirctions --
+ * SYS_syscall, and SYS___syscall. The former is the old syscall()
+ * routine, basicly; the latter is for quad-aligned arguments.
+ */
+ syscall_num = regs.r_rax;
+ switch (syscall_num) {
+ case SYS_syscall:
+ syscall_num = ptrace(PT_READ_D, cpid, (caddr_t)parm_offset, 0);
+ parm_offset += sizeof(int);
+ break;
+ case SYS___syscall:
+ syscall_num = ptrace(PT_READ_D, cpid, (caddr_t)parm_offset, 0);
+ parm_offset += sizeof(quad_t);
+ break;
+ }
+
+ fsc.number = syscall_num;
+ fsc.name =
+ (syscall_num < 0 || syscall_num > nsyscalls) ? NULL :
+ freebsd32_syscallnames[syscall_num];
+ if (!fsc.name) {
+ fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n", syscall_num);
+ }
+
+ if (fsc.name && (trussinfo->flags & FOLLOWFORKS)
+ && ((!strcmp(fsc.name, "fork")
+ || !strcmp(fsc.name, "rfork")
+ || !strcmp(fsc.name, "vfork"))))
+ {
+ trussinfo->curthread->in_fork = 1;
+ }
+
+ if (nargs == 0)
+ return;
+
+ fsc.args32 = malloc((1+nargs) * sizeof(unsigned int));
+ iorequest.piod_op = PIOD_READ_D;
+ iorequest.piod_offs = (void *)parm_offset;
+ iorequest.piod_addr = fsc.args32;
+ iorequest.piod_len = (1+nargs) * sizeof(unsigned int);
+ ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
+ if (iorequest.piod_len == 0)
+ return;
+
+ fsc.args = malloc((1+nargs) * sizeof(unsigned long));
+ for (i = 0; i < nargs + 1; i++)
+ fsc.args[i] = fsc.args32[i];
+
+ if (fsc.name)
+ sc = get_syscall(fsc.name);
+ if (sc) {
+ fsc.nargs = sc->nargs;
+ } else {
+#if DEBUG
+ fprintf(trussinfo->outfile, "unknown syscall %s -- setting args to %d\n",
+ fsc.name, nargs);
+#endif
+ fsc.nargs = nargs;
+ }
+
+ fsc.s_args = malloc((1+fsc.nargs) * sizeof(char*));
+ memset(fsc.s_args, 0, fsc.nargs * sizeof(char*));
+ fsc.sc = sc;
+
+ /*
+ * At this point, we set up the system call arguments.
+ * We ignore any OUT ones, however -- those are arguments that
+ * are set by the system call, and so are probably meaningless
+ * now. This doesn't currently support arguments that are
+ * passed in *and* out, however.
+ */
+
+ if (fsc.name) {
+
+#if DEBUG
+ fprintf(stderr, "syscall %s(", fsc.name);
+#endif
+ for (i = 0; i < fsc.nargs; i++) {
+#if DEBUG
+ fprintf(stderr, "0x%x%s",
+ sc
+ ? fsc.args[sc->args[i].offset]
+ : fsc.args[i],
+ i < (fsc.nargs - 1) ? "," : "");
+#endif
+ if (sc && !(sc->args[i].type & OUT)) {
+ fsc.s_args[i] = print_arg(&sc->args[i], fsc.args, 0, trussinfo);
+ }
+ }
+#if DEBUG
+ fprintf(stderr, ")\n");
+#endif
+ }
+
+#if DEBUG
+ fprintf(trussinfo->outfile, "\n");
+#endif
+
+ if (fsc.name != NULL &&
+ (!strcmp(fsc.name, "freebsd32_execve") || !strcmp(fsc.name, "exit"))) {
+
+ /* XXX
+ * This could be done in a more general
+ * manner but it still wouldn't be very pretty.
+ */
+ if (!strcmp(fsc.name, "freebsd32_execve")) {
+ if ((trussinfo->flags & EXECVEARGS) == 0)
+ if (fsc.s_args[1]) {
+ free(fsc.s_args[1]);
+ fsc.s_args[1] = NULL;
+ }
+ if ((trussinfo->flags & EXECVEENVS) == 0)
+ if (fsc.s_args[2]) {
+ free(fsc.s_args[2]);
+ fsc.s_args[2] = NULL;
+ }
+ }
+
+ }
+
+ return;
+}
+
+/*
+ * And when the system call is done, we handle it here.
+ * Currently, no attempt is made to ensure that the system calls
+ * match -- this needs to be fixed (and is, in fact, why S_SCX includes
+ * the sytem call number instead of, say, an error status).
+ */
+
+long
+amd64_fbsd32_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
+{
+ struct reg regs;
+ long retval;
+ int i;
+ int errorp;
+ struct syscall *sc;
+
+ if (fsc.name == NULL)
+ return (-1);
+ cpid = trussinfo->curthread->tid;
+
+ if (ptrace(PT_GETREGS, cpid, (caddr_t)&regs, 0) < 0)
+ {
+ fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
+ return (-1);
+ }
+
+ retval = regs.r_rax;
+ errorp = !!(regs.r_rflags & PSL_C);
+
+ /*
+ * This code, while simpler than the initial versions I used, could
+ * stand some significant cleaning.
+ */
+
+ sc = fsc.sc;
+ if (!sc) {
+ for (i = 0; i < fsc.nargs; i++)
+ asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
+ } else {
+ /*
+ * Here, we only look for arguments that have OUT masked in --
+ * otherwise, they were handled in the syscall_entry function.
+ */
+ for (i = 0; i < sc->nargs; i++) {
+ char *temp;
+ if (sc->args[i].type & OUT) {
+ /*
+ * If an error occurred, then don't bother getting the data;
+ * it may not be valid.
+ */
+ if (errorp)
+ asprintf(&temp, "0x%lx", fsc.args[sc->args[i].offset]);
+ else
+ temp = print_arg(&sc->args[i], fsc.args, retval, trussinfo);
+ fsc.s_args[i] = temp;
+ }
+ }
+ }
+
+ /*
+ * The pipe syscall returns its fds in two registers and has assembly glue
+ * to provide the libc API, so it cannot be handled like regular syscalls.
+ * The nargs check is so we don't have to do yet another strcmp on every
+ * syscall.
+ */
+ if (!errorp && fsc.nargs == 0 && fsc.name && strcmp(fsc.name, "pipe") == 0) {
+ fsc.nargs = 1;
+ fsc.s_args = malloc((1+fsc.nargs) * sizeof(char*));
+ asprintf(&fsc.s_args[0], "[%d,%d]", (int)retval, (int)regs.r_rdx);
+ retval = 0;
+ }
+
+ if (fsc.name != NULL &&
+ (!strcmp(fsc.name, "freebsd32_execve") || !strcmp(fsc.name, "exit"))) {
+ trussinfo->curthread->in_syscall = 1;
+ }
+
+ /*
+ * It would probably be a good idea to merge the error handling,
+ * but that complicates things considerably.
+ */
+
+ print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp, retval);
+ clear_fsc();
+
+ return (retval);
+}
diff --git a/usr.bin/truss/amd64-linux32.c b/usr.bin/truss/amd64-linux32.c
new file mode 100644
index 0000000000000..163b1417bd649
--- /dev/null
+++ b/usr.bin/truss/amd64-linux32.c
@@ -0,0 +1,316 @@
+/*
+ * Copryight 1997 Sean Eric Fagan
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Sean Eric Fagan
+ * 4. Neither the name of the author may be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * 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.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+ "$FreeBSD$";
+#endif /* not lint */
+
+/*
+ * Linux/i386-specific system call handling. Given how much of this code
+ * is taken from the freebsd equivalent, I can probably put even more of
+ * it in support routines that can be used by any personality support.
+ */
+
+#include <sys/types.h>
+#include <sys/ptrace.h>
+
+#include <machine/reg.h>
+#include <machine/psl.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "truss.h"
+#include "syscall.h"
+#include "extern.h"
+
+static int cpid = -1;
+
+#include "linux32_syscalls.h"
+
+static int nsyscalls =
+ sizeof(linux32_syscallnames) / sizeof(linux32_syscallnames[0]);
+
+/*
+ * This is what this particular file uses to keep track of a system call.
+ * It is probably not quite sufficient -- I can probably use the same
+ * structure for the various syscall personalities, and I also probably
+ * need to nest system calls (for signal handlers).
+ *
+ * 'struct syscall' describes the system call; it may be NULL, however,
+ * if we don't know about this particular system call yet.
+ */
+static struct linux_syscall {
+ struct syscall *sc;
+ const char *name;
+ int number;
+ unsigned long args[5];
+ int nargs; /* number of arguments -- *not* number of words! */
+ char **s_args; /* the printable arguments */
+} fsc;
+
+/* Clear up and free parts of the fsc structure. */
+static __inline void
+clear_fsc(void) {
+ if (fsc.s_args) {
+ int i;
+ for (i = 0; i < fsc.nargs; i++)
+ if (fsc.s_args[i])
+ free(fsc.s_args[i]);
+ free(fsc.s_args);
+ }
+ memset(&fsc, 0, sizeof(fsc));
+}
+
+/*
+ * Called when a process has entered a system call. nargs is the
+ * number of words, not number of arguments (a necessary distinction
+ * in some cases). Note that if the STOPEVENT() code in i386/i386/trap.c
+ * is ever changed these functions need to keep up.
+ */
+
+void
+amd64_linux32_syscall_entry(struct trussinfo *trussinfo, int nargs) {
+ struct reg regs;
+ int syscall_num;
+ int i;
+ struct syscall *sc;
+
+ cpid = trussinfo->curthread->tid;
+
+ clear_fsc();
+
+ if (ptrace(PT_GETREGS, cpid, (caddr_t)&regs, 0) < 0)
+ {
+ fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
+ return;
+ }
+ syscall_num = regs.r_rax;
+
+ fsc.number = syscall_num;
+ fsc.name =
+ (syscall_num < 0 || syscall_num > nsyscalls) ? NULL : linux32_syscallnames[syscall_num];
+ if (!fsc.name) {
+ fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n", syscall_num);
+ }
+
+ if (fsc.name && (trussinfo->flags & FOLLOWFORKS)
+ && ((!strcmp(fsc.name, "linux_fork")
+ || !strcmp(fsc.name, "linux_vfork"))))
+ {
+ trussinfo->curthread->in_fork = 1;
+ }
+
+ if (nargs == 0)
+ return;
+
+ /*
+ * Linux passes syscall arguments in registers, not
+ * on the stack. Fortunately, we've got access to the
+ * register set. Note that we don't bother checking the
+ * number of arguments. And what does linux do for syscalls
+ * that have more than five arguments?
+ */
+
+ fsc.args[0] = regs.r_rbx;
+ fsc.args[1] = regs.r_rcx;
+ fsc.args[2] = regs.r_rdx;
+ fsc.args[3] = regs.r_rsi;
+ fsc.args[4] = regs.r_rdi;
+
+ sc = get_syscall(fsc.name);
+ if (sc) {
+ fsc.nargs = sc->nargs;
+ } else {
+#if DEBUG
+ fprintf(trussinfo->outfile, "unknown syscall %s -- setting args to %d\n",
+ fsc.name, nargs);
+#endif
+ fsc.nargs = nargs;
+ }
+
+ fsc.s_args = malloc((1+fsc.nargs) * sizeof(char*));
+ memset(fsc.s_args, 0, fsc.nargs * sizeof(char*));
+ fsc.sc = sc;
+
+ /*
+ * At this point, we set up the system call arguments.
+ * We ignore any OUT ones, however -- those are arguments that
+ * are set by the system call, and so are probably meaningless
+ * now. This doesn't currently support arguments that are
+ * passed in *and* out, however.
+ */
+
+ if (fsc.name) {
+
+#if DEBUG
+ fprintf(stderr, "syscall %s(", fsc.name);
+#endif
+ for (i = 0; i < fsc.nargs; i++) {
+#if DEBUG
+ fprintf(stderr, "0x%x%s",
+ sc
+ ? fsc.args[sc->args[i].offset]
+ : fsc.args[i],
+ i < (fsc.nargs - 1) ? "," : "");
+#endif
+ if (sc && !(sc->args[i].type & OUT)) {
+ fsc.s_args[i] = print_arg(&sc->args[i], fsc.args, 0, trussinfo);
+ }
+ }
+#if DEBUG
+ fprintf(stderr, ")\n");
+#endif
+ }
+
+#if DEBUG
+ fprintf(trussinfo->outfile, "\n");
+#endif
+
+ if (fsc.name != NULL &&
+ (!strcmp(fsc.name, "linux_execve") || !strcmp(fsc.name, "exit"))) {
+
+ /* XXX
+ * This could be done in a more general
+ * manner but it still wouldn't be very pretty.
+ */
+ if (!strcmp(fsc.name, "linux_execve")) {
+ if ((trussinfo->flags & EXECVEARGS) == 0)
+ if (fsc.s_args[1]) {
+ free(fsc.s_args[1]);
+ fsc.s_args[1] = NULL;
+ }
+ if ((trussinfo->flags & EXECVEENVS) == 0)
+ if (fsc.s_args[2]) {
+ free(fsc.s_args[2]);
+ fsc.s_args[2] = NULL;
+ }
+ }
+ }
+
+ return;
+}
+
+/*
+ * Linux syscalls return negative errno's, we do positive and map them
+ */
+const int bsd_to_linux_errno[] = {
+ -0, -1, -2, -3, -4, -5, -6, -7, -8, -9,
+ -10, -35, -12, -13, -14, -15, -16, -17, -18, -19,
+ -20, -21, -22, -23, -24, -25, -26, -27, -28, -29,
+ -30, -31, -32, -33, -34, -11,-115,-114, -88, -89,
+ -90, -91, -92, -93, -94, -95, -96, -97, -98, -99,
+ -100,-101,-102,-103,-104,-105,-106,-107,-108,-109,
+ -110,-111, -40, -36,-112,-113, -39, -11, -87,-122,
+ -116, -66, -6, -6, -6, -6, -6, -37, -38, -9,
+ -6,
+};
+
+long
+amd64_linux32_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
+{
+ struct reg regs;
+ long retval;
+ int i;
+ int errorp;
+ struct syscall *sc;
+
+ if (fsc.name == NULL)
+ return (-1);
+
+ cpid = trussinfo->curthread->tid;
+ if (ptrace(PT_GETREGS, cpid, (caddr_t)&regs, 0) < 0)
+ {
+ fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
+ return (-1);
+ }
+
+ retval = regs.r_rax;
+ errorp = !!(regs.r_rflags & PSL_C);
+
+ /*
+ * This code, while simpler than the initial versions I used, could
+ * stand some significant cleaning.
+ */
+
+ sc = fsc.sc;
+ if (!sc) {
+ for (i = 0; i < fsc.nargs; i++)
+ asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
+ } else {
+ /*
+ * Here, we only look for arguments that have OUT masked in --
+ * otherwise, they were handled in the syscall_entry function.
+ */
+ for (i = 0; i < sc->nargs; i++) {
+ char *temp;
+ if (sc->args[i].type & OUT) {
+ /*
+ * If an error occurred, than don't bothe getting the data;
+ * it may not be valid.
+ */
+ if (errorp)
+ asprintf(&temp, "0x%lx", fsc.args[sc->args[i].offset]);
+ else
+ temp = print_arg(&sc->args[i], fsc.args, retval, trussinfo);
+ fsc.s_args[i] = temp;
+ }
+ }
+ }
+
+ /*
+ * It would probably be a good idea to merge the error handling,
+ * but that complicates things considerably.
+ */
+ if (errorp) {
+ for (i = 0; (size_t)i < sizeof(bsd_to_linux_errno) / sizeof(int); i++)
+ if (retval == bsd_to_linux_errno[i])
+ break;
+ }
+
+ if (fsc.name != NULL &&
+ (!strcmp(fsc.name, "linux_execve") || !strcmp(fsc.name, "exit"))) {
+ trussinfo->curthread->in_syscall = 1;
+ }
+
+ print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
+ errorp ? i : retval);
+ clear_fsc();
+
+ return (retval);
+}
diff --git a/usr.bin/truss/amd64linux32.conf b/usr.bin/truss/amd64linux32.conf
new file mode 100644
index 0000000000000..7f5e8bd268fef
--- /dev/null
+++ b/usr.bin/truss/amd64linux32.conf
@@ -0,0 +1,13 @@
+# $FreeBSD$
+
+sysnames="linux32_syscalls.h"
+sysproto="/dev/null"
+sysproto_h="/dev/null"
+syshdr="/dev/null"
+sysmk="/dev/null"
+syssw="/dev/null"
+syshide="/dev/null"
+syscallprefix="SYS_"
+switchname="sysent"
+namesname="linux32_syscallnames"
+systrace="/dev/null"
diff --git a/usr.bin/truss/fbsd32.conf b/usr.bin/truss/fbsd32.conf
new file mode 100644
index 0000000000000..3323f115ee18c
--- /dev/null
+++ b/usr.bin/truss/fbsd32.conf
@@ -0,0 +1,13 @@
+# $FreeBSD$
+
+sysnames="freebsd32_syscalls.h"
+sysproto="/dev/null"
+sysproto_h="/dev/null"
+syshdr="/dev/null"
+sysmk="/dev/null"
+syssw="/dev/null"
+syshide="/dev/null"
+syscallprefix="SYS_"
+switchname="sysent"
+namesname="freebsd32_syscallnames"
+systrace="/dev/null"