#include "defs.h"
#include <fcntl.h>
-#if HAVE_SYS_UIO_H
-# include <sys/uio.h>
-#endif
+#include <sys/uio.h>
-int
-sys_read(struct tcb *tcp)
+SYS_FUNC(read)
{
if (entering(tcp)) {
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(struct tcb *tcp)
+SYS_FUNC(write)
{
- if (entering(tcp)) {
- printfd(tcp, tcp->u_arg[0]);
- tprints(", ");
- 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;
}
-#if HAVE_SYS_UIO_H
-void
-tprint_iov(struct tcb *tcp, unsigned long len, unsigned long addr, int decode_iov)
+struct print_iovec_config {
+ enum iov_decode decode_iov;
+ unsigned long data_size;
+};
+
+static bool
+print_iovec(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
{
-#if SUPPORTED_PERSONALITIES > 1
- union {
- struct { u_int32_t base; u_int32_t len; } iov32;
- struct { u_int64_t base; u_int64_t len; } iov64;
- } iov;
-#define sizeof_iov \
- (personality_wordsize[current_personality] == 4 \
- ? sizeof(iov.iov32) : sizeof(iov.iov64))
-#define iov_iov_base \
- (personality_wordsize[current_personality] == 4 \
- ? (u_int64_t) iov.iov32.base : iov.iov64.base)
-#define iov_iov_len \
- (personality_wordsize[current_personality] == 4 \
- ? (u_int64_t) iov.iov32.len : iov.iov64.len)
-#else
- struct iovec iov;
-#define sizeof_iov sizeof(iov)
-#define iov_iov_base iov.iov_base
-#define iov_iov_len iov.iov_len
-#endif
- unsigned long size, cur, end, abbrev_end;
- int failed = 0;
+ const unsigned long *iov;
+ unsigned long iov_buf[2], len;
+ struct print_iovec_config *c = data;
- if (!len) {
- tprints("[]");
- return;
- }
- size = len * sizeof_iov;
- end = addr + size;
- if (!verbose(tcp) || size / sizeof_iov != len || end < addr) {
- tprintf("%#lx", addr);
- return;
- }
- if (abbrev(tcp)) {
- abbrev_end = addr + max_strlen * sizeof_iov;
- if (abbrev_end < addr)
- abbrev_end = end;
+ if (elem_size < sizeof(iov_buf)) {
+ iov_buf[0] = ((unsigned int *) elem_buf)[0];
+ iov_buf[1] = ((unsigned int *) elem_buf)[1];
+ iov = iov_buf;
} else {
- abbrev_end = end;
+ iov = elem_buf;
}
- tprints("[");
- for (cur = addr; cur < end; cur += sizeof_iov) {
- if (cur > addr)
- tprints(", ");
- if (cur >= abbrev_end) {
- tprints("...");
+
+ tprints("{iov_base=");
+
+ len = iov[1];
+
+ switch (c->decode_iov) {
+ case IOV_DECODE_STR:
+ if (len > c->data_size)
+ len = c->data_size;
+ if (c->data_size != -1UL)
+ c->data_size -= len;
+ printstr(tcp, iov[0], len);
break;
- }
- if (umoven(tcp, cur, sizeof_iov, (char *) &iov) < 0) {
- tprints("?");
- failed = 1;
+ case IOV_DECODE_NETLINK:
+ if (len > c->data_size)
+ len = c->data_size;
+ if (c->data_size != -1UL)
+ c->data_size -= len;
+ decode_netlink(tcp, iov[0], iov[1]);
+ break;
+ default:
+ printaddr(iov[0]);
break;
- }
- tprints("{");
- if (decode_iov)
- printstr(tcp, (long) iov_iov_base, iov_iov_len);
- else
- tprintf("%#lx", (long) iov_iov_base);
- tprintf(", %lu}", (unsigned long)iov_iov_len);
}
- tprints("]");
- if (failed)
- tprintf(" %#lx", addr);
-#undef sizeof_iov
-#undef iov_iov_base
-#undef iov_iov_len
+
+ tprintf(", iov_len=%lu}", iov[1]);
+
+ return true;
}
-int
-sys_readv(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,
+ enum iov_decode decode_iov, unsigned long data_size)
{
- if (entering(tcp)) {
- printfd(tcp, tcp->u_arg[0]);
- tprints(", ");
- } else {
- if (syserror(tcp)) {
- tprintf("%#lx, %lu",
- tcp->u_arg[1], tcp->u_arg[2]);
- return 0;
- }
- tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
- tprintf(", %lu", tcp->u_arg[2]);
- }
- return 0;
+ unsigned long iov[2];
+ struct print_iovec_config config =
+ { .decode_iov = decode_iov, .data_size = data_size };
+
+ print_array(tcp, addr, len, iov, current_wordsize * 2,
+ umoven_or_printaddr_ignore_syserror, print_iovec, &config);
}
-int
-sys_writev(struct tcb *tcp)
+void
+tprint_iov(struct tcb *tcp, unsigned long len, unsigned long addr,
+ enum iov_decode decode_iov)
+{
+ tprint_iov_upto(tcp, len, addr, decode_iov, -1UL);
+}
+
+SYS_FUNC(readv)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
- tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
+ } else {
+ tprint_iov_upto(tcp, tcp->u_arg[2], tcp->u_arg[1],
+ syserror(tcp) ? IOV_DECODE_ADDR :
+ IOV_DECODE_STR, tcp->u_rval);
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
-#endif
-/* 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
+SYS_FUNC(writev)
+{
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], IOV_DECODE_STR);
+ tprintf(", %lu", tcp->u_arg[2]);
+
+ return RVAL_DECODED;
+}
-int
-sys_pread(struct tcb *tcp)
+SYS_FUNC(pread)
{
if (entering(tcp)) {
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]);
- printllval(tcp, "%llu", PREAD_OFFSET_ARG);
+ printllval(tcp, "%lld", 3);
}
return 0;
}
-int
-sys_pwrite(struct tcb *tcp)
+SYS_FUNC(pwrite)
{
- if (entering(tcp)) {
- 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);
+ 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, "%lld", 3);
+
+ return RVAL_DECODED;
+}
+
+static void
+print_lld_from_low_high_val(struct tcb *tcp, int arg)
+{
+#if SIZEOF_LONG > 4 && SIZEOF_LONG == SIZEOF_LONG_LONG
+# ifndef current_klongsize
+ if (current_klongsize < SIZEOF_LONG) {
+ tprintf("%ld", (tcp->u_arg[arg + 1] << current_wordsize * 8)
+ | tcp->u_arg[arg]);
+ } else
+# endif /* !current_klongsize */
+ {
+ tprintf("%ld", tcp->u_arg[arg]);
}
- return 0;
+#elif SIZEOF_LONG > 4
+# error Unsupported configuration: SIZEOF_LONG > 4 && SIZEOF_LONG_LONG > SIZEOF_LONG
+#elif HAVE_STRUCT_TCB_EXT_ARG
+# ifndef current_klongsize
+ if (current_klongsize < SIZEOF_LONG_LONG) {
+ tprintf("%lld",
+ (zero_extend_signed_to_ull(tcp->u_arg[arg + 1]) << sizeof(long) * 8)
+ | zero_extend_signed_to_ull(tcp->u_arg[arg]));
+ } else
+# endif /* !current_klongsize */
+ {
+ tprintf("%lld", tcp->ext_arg[arg]);
+ }
+#else /* SIZEOF_LONG_LONG > SIZEOF_LONG && !HAVE_STRUCT_TCB_EXT_ARG */
+ tprintf("%lld",
+ (zero_extend_signed_to_ull(tcp->u_arg[arg + 1]) << sizeof(long) * 8)
+ | zero_extend_signed_to_ull(tcp->u_arg[arg]));
+#endif
}
-#if HAVE_SYS_UIO_H
-int
-sys_preadv(struct tcb *tcp)
+#include "xlat/rwf_flags.h"
+
+static int
+do_preadv(struct tcb *tcp, const int flags_arg)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
} else {
- if (syserror(tcp)) {
- tprintf("%#lx, %lu", tcp->u_arg[1], tcp->u_arg[2]);
- return 0;
+ unsigned long len = widen_to_ulong(tcp->u_arg[2]);
+
+ tprint_iov_upto(tcp, len, tcp->u_arg[1],
+ syserror(tcp) ? IOV_DECODE_ADDR :
+ IOV_DECODE_STR, tcp->u_rval);
+ tprintf(", %lu, ", len);
+ print_lld_from_low_high_val(tcp, 3);
+ if (flags_arg >= 0) {
+ tprints(", ");
+ printflags(rwf_flags, tcp->u_arg[flags_arg], "RWF_???");
}
- tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
- tprintf(", %lu, ", tcp->u_arg[2]);
- printllval(tcp, "%llu", PREAD_OFFSET_ARG);
}
return 0;
}
-int
-sys_pwritev(struct tcb *tcp)
+SYS_FUNC(preadv)
{
- if (entering(tcp)) {
- 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]);
- printllval(tcp, "%llu", PREAD_OFFSET_ARG);
- }
- return 0;
+ return do_preadv(tcp, -1);
}
-#endif /* HAVE_SYS_UIO_H */
-int
-sys_sendfile(struct tcb *tcp)
+SYS_FUNC(preadv2)
{
- if (entering(tcp)) {
- off_t offset;
+ return do_preadv(tcp, 5);
+}
- printfd(tcp, tcp->u_arg[0]);
- tprints(", ");
- printfd(tcp, tcp->u_arg[1]);
+static int
+do_pwritev(struct tcb *tcp, const int flags_arg)
+{
+ unsigned long len = widen_to_ulong(tcp->u_arg[2]);
+
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ tprint_iov(tcp, len, tcp->u_arg[1], IOV_DECODE_STR);
+ tprintf(", %lu, ", len);
+ print_lld_from_low_high_val(tcp, 3);
+ if (flags_arg >= 0) {
tprints(", ");
- if (!tcp->u_arg[2])
- tprints("NULL");
- else if (umove(tcp, tcp->u_arg[2], &offset) < 0)
- tprintf("%#lx", tcp->u_arg[2]);
- else
-#ifdef HAVE_LONG_LONG_OFF_T
- tprintf("[%llu]", offset);
-#else
- tprintf("[%lu]", offset);
-#endif
- tprintf(", %lu", tcp->u_arg[3]);
+ printflags(rwf_flags, tcp->u_arg[flags_arg], "RWF_???");
}
- return 0;
+
+ return RVAL_DECODED;
}
-static void
-print_loff_t(struct tcb *tcp, long addr)
+SYS_FUNC(pwritev)
{
- loff_t offset;
-
- if (!addr)
- tprints("NULL");
- else if (umove(tcp, addr, &offset) < 0)
- tprintf("%#lx", addr);
- else
- tprintf("[%llu]", (unsigned long long int) offset);
+ return do_pwritev(tcp, -1);
}
-int
-sys_sendfile64(struct tcb *tcp)
+SYS_FUNC(pwritev2)
{
- if (entering(tcp)) {
- printfd(tcp, tcp->u_arg[0]);
- tprints(", ");
- printfd(tcp, tcp->u_arg[1]);
- tprints(", ");
- print_loff_t(tcp, tcp->u_arg[2]);
- tprintf(", %lu", tcp->u_arg[3]);
- }
- return 0;
+ return do_pwritev(tcp, 5);
}
-static const struct xlat splice_flags[] = {
-#ifdef SPLICE_F_MOVE
- { SPLICE_F_MOVE, "SPLICE_F_MOVE" },
-#endif
-#ifdef SPLICE_F_NONBLOCK
- { SPLICE_F_NONBLOCK, "SPLICE_F_NONBLOCK" },
-#endif
-#ifdef SPLICE_F_MORE
- { SPLICE_F_MORE, "SPLICE_F_MORE" },
-#endif
-#ifdef SPLICE_F_GIFT
- { SPLICE_F_GIFT, "SPLICE_F_GIFT" },
-#endif
- { 0, NULL },
-};
+#include "xlat/splice_flags.h"
-int
-sys_tee(struct tcb *tcp)
+SYS_FUNC(tee)
{
- if (entering(tcp)) {
- /* 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_???");
- }
- return 0;
-}
+ /* 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_???");
-int
-sys_splice(struct tcb *tcp)
-{
- if (entering(tcp)) {
- /* int fd_in */
- printfd(tcp, tcp->u_arg[0]);
- tprints(", ");
- /* loff_t *off_in */
- print_loff_t(tcp, tcp->u_arg[1]);
- tprints(", ");
- /* int fd_out */
- printfd(tcp, tcp->u_arg[2]);
- tprints(", ");
- /* loff_t *off_out */
- print_loff_t(tcp, tcp->u_arg[3]);
- tprints(", ");
- /* size_t len */
- tprintf("%lu, ", tcp->u_arg[4]);
- /* unsigned int flags */
- printflags(splice_flags, tcp->u_arg[5], "SPLICE_F_???");
- }
- return 0;
+ return RVAL_DECODED;
}
-int
-sys_vmsplice(struct tcb *tcp)
+SYS_FUNC(splice)
{
- if (entering(tcp)) {
- /* 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 0;
+ /* int fd_in */
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ /* loff_t *off_in */
+ printnum_int64(tcp, tcp->u_arg[1], "%" PRId64);
+ tprints(", ");
+ /* int fd_out */
+ printfd(tcp, tcp->u_arg[2]);
+ tprints(", ");
+ /* loff_t *off_out */
+ printnum_int64(tcp, tcp->u_arg[3], "%" PRId64);
+ 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;
}
-int
-sys_ioctl(struct tcb *tcp)
+SYS_FUNC(vmsplice)
{
- const struct ioctlent *iop;
+ /* 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], IOV_DECODE_STR);
+ tprintf(", %lu, ", tcp->u_arg[2]);
+ /* unsigned int flags */
+ printflags(splice_flags, tcp->u_arg[3], "SPLICE_F_???");
- if (entering(tcp)) {
- printfd(tcp, tcp->u_arg[0]);
- tprints(", ");
- iop = ioctl_lookup(tcp->u_arg[1]);
- if (iop) {
- tprints(iop->symbol);
- while ((iop = ioctl_next_match(iop)))
- tprintf(" or %s", iop->symbol);
- } else
- tprintf("%#lx", tcp->u_arg[1]);
- ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2]);
- }
- else {
- int ret = ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2]);
- if (!ret)
- tprintf(", %#lx", tcp->u_arg[2]);
- else
- return ret - 1;
- }
- return 0;
+ return RVAL_DECODED;
}
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