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authorjake <jake@FreeBSD.org>2002-08-04 17:57:01 +0000
committerjake <jake@FreeBSD.org>2002-08-04 17:57:01 +0000
commit38c44f7803ef2a55d755975b0ac48fa3cb9cd0d3 (patch)
tree9b5d3441ee2507d8aff17c1adf356c1e91c95bef /usr.bin/truss
parente0f60db94f5036899acf8724bb839c38f0135934 (diff)
downloadFreeBSD-src-38c44f7803ef2a55d755975b0ac48fa3cb9cd0d3.zip
FreeBSD-src-38c44f7803ef2a55d755975b0ac48fa3cb9cd0d3.tar.gz
Ported to sparc64.
Diffstat (limited to 'usr.bin/truss')
-rw-r--r--usr.bin/truss/Makefile8
-rw-r--r--usr.bin/truss/extern.h4
-rw-r--r--usr.bin/truss/main.c3
-rw-r--r--usr.bin/truss/sparc64-fbsd.c362
4 files changed, 372 insertions, 5 deletions
diff --git a/usr.bin/truss/Makefile b/usr.bin/truss/Makefile
index 679f694..a03e990 100644
--- a/usr.bin/truss/Makefile
+++ b/usr.bin/truss/Makefile
@@ -1,11 +1,9 @@
# $FreeBSD$
PROG= truss
-SRCS= main.c setup.c syscalls.c syscalls.h ioctl.c
-.if (${MACHINE_ARCH} == "alpha")
-SRCS+= alpha-fbsd.c
-.elif (${MACHINE_ARCH} == "i386")
-SRCS+= i386-fbsd.c i386-linux.c linux_syscalls.h
+SRCS= main.c setup.c syscalls.c syscalls.h ioctl.c ${MACHINE_ARCH}-fbsd.c
+.if (${MACHINE_ARCH} == "i386")
+SRCS+= i386-linux.c linux_syscalls.h
.endif
CFLAGS+= -I${.CURDIR} -I.
diff --git a/usr.bin/truss/extern.h b/usr.bin/truss/extern.h
index a708dda..12cc016 100644
--- a/usr.bin/truss/extern.h
+++ b/usr.bin/truss/extern.h
@@ -45,3 +45,7 @@ extern int i386_syscall_exit(struct trussinfo *, int);
extern void i386_linux_syscall_entry(struct trussinfo *, int);
extern int i386_linux_syscall_exit(struct trussinfo *, int);
#endif
+#ifdef __sparc64__
+extern void sparc64_syscall_entry(struct trussinfo *, int);
+extern int sparc64_syscall_exit(struct trussinfo *, int);
+#endif
diff --git a/usr.bin/truss/main.c b/usr.bin/truss/main.c
index 86a007c..dc35184 100644
--- a/usr.bin/truss/main.c
+++ b/usr.bin/truss/main.c
@@ -91,6 +91,9 @@ struct ex_types {
{ "FreeBSD ELF32", i386_syscall_entry, i386_syscall_exit },
{ "Linux ELF", i386_linux_syscall_entry, i386_linux_syscall_exit },
#endif
+#ifdef __sparc64__
+ { "FreeBSD ELF64", sparc64_syscall_entry, sparc64_syscall_exit },
+#endif
{ 0, 0, 0 },
};
diff --git a/usr.bin/truss/sparc64-fbsd.c b/usr.bin/truss/sparc64-fbsd.c
new file mode 100644
index 0000000..63b5498
--- /dev/null
+++ b/usr.bin/truss/sparc64-fbsd.c
@@ -0,0 +1,362 @@
+/*
+ * Copryight 1998 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/sparc64-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.
+ *
+ * This file is almost nothing more than a slightly-edited i386-fbsd.c.
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/pioctl.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+
+#include <machine/frame.h>
+#include <machine/reg.h>
+#include <machine/tstate.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "truss.h"
+#include "syscall.h"
+
+static int fd = -1;
+static int cpid = -1;
+extern int Procfd;
+
+#include "syscalls.h"
+
+static int nsyscalls = sizeof(syscallnames) / sizeof(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 freebsd_syscall {
+ struct syscall *sc;
+ char *name;
+ int number;
+ unsigned long *args;
+ 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() {
+ if (fsc.args) {
+ free(fsc.args);
+ }
+ 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 sparc64/sparc64/trap.c
+ * is ever changed these functions need to keep up.
+ */
+
+void
+sparc64_syscall_entry(struct trussinfo *trussinfo, int nargs) {
+ char buf[32];
+ struct reg regs;
+ int syscall;
+ int i;
+ struct syscall *sc;
+ int indir = 0; /* indirect system call */
+
+ if (fd == -1 || trussinfo->pid != cpid) {
+ sprintf(buf, "/proc/%d/regs", trussinfo->pid);
+ fd = open(buf, O_RDWR);
+ if (fd == -1) {
+ fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
+ return;
+ }
+ cpid = trussinfo->pid;
+ }
+
+ clear_fsc();
+ lseek(fd, 0L, 0);
+ i = read(fd, &regs, sizeof(regs));
+
+ /*
+ * 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 = regs.r_global[1];
+ if (syscall == SYS_syscall || syscall == SYS___syscall) {
+ indir = 1;
+ syscall = regs.r_out[0];
+ }
+
+ fsc.number = syscall;
+ fsc.name =
+ (syscall < 0 || syscall > nsyscalls) ? NULL : syscallnames[syscall];
+ if (!fsc.name) {
+ fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n", syscall);
+ }
+
+ if (fsc.name && (trussinfo->flags & FOLLOWFORKS)
+ && ((!strcmp(fsc.name, "fork")
+ || !strcmp(fsc.name, "rfork")
+ || !strcmp(fsc.name, "vfork"))))
+ {
+ trussinfo->in_fork = 1;
+ }
+
+ if (nargs == 0)
+ return;
+
+ fsc.args = malloc((1+nargs) * sizeof(unsigned long));
+ switch (nargs) {
+ default:
+ /*
+ * The OS doesn't seem to allow more than 10 words of
+ * parameters (yay!). So we shouldn't be here.
+ */
+ warn("More than 10 words (%d) of arguments!\n", nargs);
+ break;
+ case 10: case 9: case 8: case 7:
+ /*
+ * If there are 7-10 words of arguments, they are placed
+ * on the stack, as is normal for other processors.
+ * The fall-through for all of these is deliberate!!!
+ */
+ lseek(Procfd, regs.r_out[6] + SPOFF +
+ offsetof(struct frame, fr_pad[6]), SEEK_SET);
+ read(fd, &fsc.args[6], (nargs - 6) * sizeof(fsc.args[0]));
+ case 6: fsc.args[5] = regs.r_out[5];
+ case 5: fsc.args[4] = regs.r_out[4];
+ case 4: fsc.args[3] = regs.r_out[3];
+ case 3: fsc.args[2] = regs.r_out[2];
+ case 2: fsc.args[1] = regs.r_out[1];
+ case 1: fsc.args[0] = regs.r_out[0];
+ case 0:
+ break;
+ }
+
+ if (indir) {
+ memmove(&fsc.args[0], &fsc.args[1], (nargs-1) * sizeof(fsc.args[0]));
+ }
+
+ 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(Procfd, &sc->args[i], fsc.args);
+ }
+ }
+#if DEBUG
+ fprintf(stderr, ")\n");
+#endif
+ }
+
+#if DEBUG
+ fprintf(trussinfo->outfile, "\n");
+#endif
+
+ /*
+ * Some system calls should be printed out before they are done --
+ * execve() and exit(), for example, never return. Possibly change
+ * this to work for any system call that doesn't have an OUT
+ * parameter?
+ */
+
+ if (!strcmp(fsc.name, "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, "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;
+ }
+ }
+
+ print_syscall(trussinfo, fsc.name, fsc.nargs, fsc.s_args);
+ fprintf(trussinfo->outfile, "\n");
+ }
+
+ 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).
+ */
+
+int
+sparc64_syscall_exit(struct trussinfo *trussinfo, int syscall) {
+ char buf[32];
+ struct reg regs;
+ int retval;
+ int i;
+ int errorp;
+ struct syscall *sc;
+
+ if (fd == -1 || trussinfo->pid != cpid) {
+ sprintf(buf, "/proc/%d/regs", trussinfo->pid);
+ fd = open(buf, O_RDONLY);
+ if (fd == -1) {
+ fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
+ return;
+ }
+ cpid = trussinfo->pid;
+ }
+
+ lseek(fd, 0L, 0);
+ if (read(fd, &regs, sizeof(regs)) != sizeof(regs)) {
+ fprintf(trussinfo->outfile, "\n");
+ return;
+ }
+ retval = regs.r_out[0];
+ errorp = !!(regs.r_tstate & TSTATE_XCC_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++) {
+ fsc.s_args[i] = malloc(12);
+ sprintf(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) {
+ temp = malloc(12);
+ sprintf(temp, "0x%lx", fsc.args[sc->args[i].offset]);
+ } else {
+ temp = print_arg(Procfd, &sc->args[i], fsc.args);
+ }
+ fsc.s_args[i] = temp;
+ }
+ }
+ }
+
+ /*
+ * 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);
+}
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