* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
+ * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* 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.
- *
- * $Id$
*/
#include "defs.h"
-
#include <fcntl.h>
#include <sys/uio.h>
-int
-sys_read(tcp)
-struct tcb *tcp;
+SYS_FUNC(read)
{
if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
} else {
if (syserror(tcp))
- tprintf("%#lx", tcp->u_arg[1]);
+ printaddr(tcp->u_arg[1]);
else
printstr(tcp, tcp->u_arg[1], tcp->u_rval);
tprintf(", %lu", tcp->u_arg[2]);
return 0;
}
-int
-sys_write(tcp)
-struct tcb *tcp;
+SYS_FUNC(write)
{
- if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
- printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
- tprintf(", %lu", tcp->u_arg[2]);
- }
- return 0;
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
+ tprintf(", %lu", tcp->u_arg[2]);
+
+ return RVAL_DECODED;
}
-int
-sys_readv(tcp)
-struct tcb *tcp;
+/*
+ * data_size limits the cumulative size of printed data.
+ * Example: recvmsg returing a short read.
+ */
+void
+tprint_iov_upto(struct tcb *tcp, unsigned long len, unsigned long addr, int decode_iov, unsigned long data_size)
{
- struct iovec *iov;
- int i, len;
+ unsigned long iov[2];
+ unsigned long size, cur, end, abbrev_end;
+ const unsigned long sizeof_iov = current_wordsize * 2;
- if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
+ if (!len) {
+ tprints("[]");
+ return;
+ }
+ size = len * sizeof_iov;
+ end = addr + size;
+ if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
+ !addr || size / sizeof_iov != len || end < addr) {
+ printaddr(addr);
+ return;
+ }
+ if (abbrev(tcp)) {
+ abbrev_end = addr + max_strlen * sizeof_iov;
+ if (abbrev_end < addr)
+ abbrev_end = end;
} else {
- if (syserror(tcp)) {
- tprintf("%#lx, %lu",
- tcp->u_arg[1], tcp->u_arg[2]);
- return 0;
- }
- len = tcp->u_arg[2];
- if ((iov = (struct iovec *) malloc(len * sizeof *iov)) == NULL) {
- fprintf(stderr, "No memory");
- return 0;
- }
- if (umoven(tcp, tcp->u_arg[1],
- len * sizeof *iov, (char *) iov) < 0) {
- tprintf("%#lx", tcp->u_arg[1]);
- } else {
- tprintf("[");
- for (i = 0; i < len; i++) {
- if (i)
- tprintf(", ");
- tprintf("{");
- printstr(tcp, (long) iov[i].iov_base,
- iov[i].iov_len);
- tprintf(", %u}", iov[i].iov_len);
- }
- tprintf("]");
+ abbrev_end = end;
+ }
+ tprints("[");
+ for (cur = addr; cur < end; cur += sizeof_iov) {
+ if (cur > addr)
+ tprints(", ");
+ if (cur >= abbrev_end) {
+ tprints("...");
+ break;
}
- free((char *) iov);
- tprintf(", %lu", tcp->u_arg[2]);
+ if (umove_ulong_array_or_printaddr(tcp, cur, iov,
+ ARRAY_SIZE(iov)))
+ break;
+ tprints("{");
+ if (decode_iov) {
+ unsigned long len = iov[1];
+ if (len > data_size)
+ len = data_size;
+ data_size -= len;
+ printstr(tcp, iov[0], len);
+ } else
+ printaddr(iov[0]);
+ tprintf(", %lu}", iov[1]);
}
- return 0;
+ tprints("]");
}
-int
-sys_writev(tcp)
-struct tcb *tcp;
+void
+tprint_iov(struct tcb *tcp, unsigned long len, unsigned long addr, int decode_iov)
{
- struct iovec *iov;
- int i, len;
+ tprint_iov_upto(tcp, len, addr, decode_iov, (unsigned long) -1L);
+}
+SYS_FUNC(readv)
+{
if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
- len = tcp->u_arg[2];
- iov = (struct iovec *) malloc(len * sizeof *iov);
- if (iov == NULL) {
- fprintf(stderr, "No memory");
- return 0;
- }
- if (umoven(tcp, tcp->u_arg[1],
- len * sizeof *iov, (char *) iov) < 0) {
- tprintf("%#lx", tcp->u_arg[1]);
- } else {
- tprintf("[");
- for (i = 0; i < len; i++) {
- if (i)
- tprintf(", ");
- tprintf("{");
- printstr(tcp, (long) iov[i].iov_base,
- iov[i].iov_len);
- tprintf(", %u}", iov[i].iov_len);
- }
- tprintf("]");
- }
- free((char *) iov);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ } else {
+ tprint_iov_upto(tcp, tcp->u_arg[2], tcp->u_arg[1], 1,
+ tcp->u_rval);
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
-#ifdef SVR4
+SYS_FUNC(writev)
+{
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
+ tprintf(", %lu", tcp->u_arg[2]);
+
+ return RVAL_DECODED;
+}
+
+/* The SH4 ABI does allow long longs in odd-numbered registers, but
+ does not allow them to be split between registers and memory - and
+ there are only four argument registers for normal functions. As a
+ result pread takes an extra padding argument before the offset. This
+ was changed late in the 2.4 series (around 2.4.20). */
+#if defined(SH)
+#define PREAD_OFFSET_ARG 4
+#else
+#define PREAD_OFFSET_ARG 3
+#endif
-int
-sys_pread(tcp)
-struct tcb *tcp;
+SYS_FUNC(pread)
{
if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
} else {
if (syserror(tcp))
- tprintf("%#lx", tcp->u_arg[1]);
+ printaddr(tcp->u_arg[1]);
else
printstr(tcp, tcp->u_arg[1], tcp->u_rval);
- tprintf(", %lu, %llu", tcp->u_arg[2],
- (((unsigned long long) tcp->u_arg[4]) << 32
- | tcp->u_arg[3]));
+ tprintf(", %lu, ", tcp->u_arg[2]);
+ printllval(tcp, "%llu", PREAD_OFFSET_ARG);
}
return 0;
}
-int
-sys_pwrite(tcp)
-struct tcb *tcp;
+SYS_FUNC(pwrite)
{
- if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
- printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
- tprintf(", %lu, %llu", tcp->u_arg[2],
- (((unsigned long long) tcp->u_arg[4]) << 32
- | tcp->u_arg[3]));
- }
- return 0;
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
+ tprintf(", %lu, ", tcp->u_arg[2]);
+ printllval(tcp, "%llu", PREAD_OFFSET_ARG);
+
+ return RVAL_DECODED;
}
-#endif /* SVR4 */
-#ifdef LINUX
-int
-sys_pread(tcp)
-struct tcb *tcp;
+static void
+print_llu_from_low_high_val(struct tcb *tcp, int arg)
+{
+#if SIZEOF_LONG == SIZEOF_LONG_LONG
+# if SUPPORTED_PERSONALITIES > 1
+# ifdef X86_64
+ if (current_personality != 1)
+# else
+ if (current_wordsize == sizeof(long))
+# endif
+# endif
+ tprintf("%lu", (unsigned long) tcp->u_arg[arg]);
+# if SUPPORTED_PERSONALITIES > 1
+ else
+ tprintf("%lu",
+ ((unsigned long) tcp->u_arg[arg + 1] << current_wordsize * 8)
+ | (unsigned long) tcp->u_arg[arg]);
+# endif
+#else
+# ifdef X32
+ if (current_personality == 0)
+ tprintf("%llu", (unsigned long long) tcp->ext_arg[arg]);
+ else
+# endif
+ tprintf("%llu",
+ ((unsigned long long) (unsigned long) tcp->u_arg[arg + 1] << sizeof(long) * 8)
+ | (unsigned long long) (unsigned long) tcp->u_arg[arg]);
+#endif
+}
+
+SYS_FUNC(preadv)
{
if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
} else {
- if (syserror(tcp))
- tprintf("%#lx", tcp->u_arg[1]);
- else
- printstr(tcp, tcp->u_arg[1], tcp->u_rval);
- tprintf(", %lu, %lu", tcp->u_arg[2], tcp->u_arg[3]);
+ tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
+ tprintf(", %lu, ", tcp->u_arg[2]);
+ print_llu_from_low_high_val(tcp, 3);
}
return 0;
}
-int
-sys_pwrite(tcp)
-struct tcb *tcp;
+SYS_FUNC(pwritev)
{
- if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
- printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
- tprintf(", %lu, %lu", tcp->u_arg[2], tcp->u_arg[3]);
- }
- return 0;
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
+ tprintf(", %lu, ", tcp->u_arg[2]);
+ print_llu_from_low_high_val(tcp, 3);
+
+ return RVAL_DECODED;
}
-#endif /* LINUX */
+#include "xlat/splice_flags.h"
-int
-sys_ioctl(tcp)
-struct tcb *tcp;
+SYS_FUNC(tee)
{
- char *symbol;
+ /* int fd_in */
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ /* int fd_out */
+ printfd(tcp, tcp->u_arg[1]);
+ tprints(", ");
+ /* size_t len */
+ tprintf("%lu, ", tcp->u_arg[2]);
+ /* unsigned int flags */
+ printflags(splice_flags, tcp->u_arg[3], "SPLICE_F_???");
- if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
- symbol = ioctl_lookup(tcp->u_arg[1]);
- if (symbol)
- tprintf("%s", symbol);
- else
- tprintf("%#lx", tcp->u_arg[1]);
- ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2]);
- }
- else {
- if (ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2]) == 0)
- tprintf(", %#lx", tcp->u_arg[2]);
- }
- return 0;
+ return RVAL_DECODED;
+}
+
+SYS_FUNC(splice)
+{
+ /* int fd_in */
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ /* loff_t *off_in */
+ printnum_int64(tcp, tcp->u_arg[1], "%" PRIu64);
+ tprints(", ");
+ /* int fd_out */
+ printfd(tcp, tcp->u_arg[2]);
+ tprints(", ");
+ /* loff_t *off_out */
+ printnum_int64(tcp, tcp->u_arg[3], "%" PRIu64);
+ tprints(", ");
+ /* size_t len */
+ tprintf("%lu, ", tcp->u_arg[4]);
+ /* unsigned int flags */
+ printflags(splice_flags, tcp->u_arg[5], "SPLICE_F_???");
+
+ return RVAL_DECODED;
+}
+
+SYS_FUNC(vmsplice)
+{
+ /* int fd */
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ /* const struct iovec *iov, unsigned long nr_segs */
+ tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
+ tprintf(", %lu, ", tcp->u_arg[2]);
+ /* unsigned int flags */
+ printflags(splice_flags, tcp->u_arg[3], "SPLICE_F_???");
+
+ return RVAL_DECODED;
}
projects / strace / blobdiff