#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
+/*
+ * data_size limits the cumulative size of printed data.
+ * Example: recvmsg returing a short read.
+ */
void
-tprint_iov(struct tcb *tcp, unsigned long len, unsigned long addr, int decode_iov)
+tprint_iov_upto(struct tcb *tcp, unsigned long len, unsigned long addr, int decode_iov, unsigned long data_size)
{
-#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 \
- (current_wordsize == 4 ? sizeof(iov.iov32) : sizeof(iov.iov64))
-#define iov_iov_base \
- (current_wordsize == 4 ? (uint64_t) iov.iov32.base : iov.iov64.base)
-#define iov_iov_len \
- (current_wordsize == 4 ? (uint64_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 iov[2];
unsigned long size, cur, end, abbrev_end;
- int failed = 0;
+ const unsigned long sizeof_iov = current_wordsize * 2;
if (!len) {
tprints("[]");
}
size = len * sizeof_iov;
end = addr + size;
- if (!verbose(tcp) || size / sizeof_iov != len || end < addr) {
- tprintf("%#lx", addr);
+ if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
+ !addr || size / sizeof_iov != len || end < addr) {
+ printaddr(addr);
return;
}
if (abbrev(tcp)) {
tprints("...");
break;
}
- if (umoven(tcp, cur, sizeof_iov, (char *) &iov) < 0) {
- tprints("?");
- failed = 1;
+ if (umove_ulong_array_or_printaddr(tcp, cur, iov,
+ ARRAY_SIZE(iov)))
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);
+ 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]);
}
tprints("]");
- if (failed)
- tprintf(" %#lx", addr);
-#undef sizeof_iov
-#undef iov_iov_base
-#undef iov_iov_len
}
-int
-sys_readv(struct tcb *tcp)
+void
+tprint_iov(struct tcb *tcp, unsigned long len, unsigned long addr, int decode_iov)
+{
+ tprint_iov_upto(tcp, len, addr, decode_iov, (unsigned long) -1L);
+}
+
+SYS_FUNC(readv)
{
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;
}
-int
-sys_writev(struct tcb *tcp)
+SYS_FUNC(writev)
{
- 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]);
- }
- 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]);
+
+ return RVAL_DECODED;
}
-#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
#define PREAD_OFFSET_ARG 3
#endif
-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]);
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);
- }
- 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;
}
-#if HAVE_SYS_UIO_H
-int
-sys_preadv(struct tcb *tcp)
+static void
+print_llu_from_low_high_val(struct tcb *tcp, int 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;
- }
- 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;
+#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
}
-int
-sys_pwritev(struct tcb *tcp)
+SYS_FUNC(preadv)
{
if (entering(tcp)) {
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
+ } else {
tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
tprintf(", %lu, ", tcp->u_arg[2]);
- printllval(tcp, "%llu", PREAD_OFFSET_ARG);
+ print_llu_from_low_high_val(tcp, 3);
}
return 0;
}
-#endif /* HAVE_SYS_UIO_H */
-int
-sys_sendfile(struct tcb *tcp)
+SYS_FUNC(pwritev)
{
- if (entering(tcp)) {
- off_t offset;
+ 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);
- printfd(tcp, tcp->u_arg[0]);
- tprints(", ");
- printfd(tcp, tcp->u_arg[1]);
- 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]);
- }
- return 0;
+ return RVAL_DECODED;
}
-static void
-print_loff_t(struct tcb *tcp, long addr)
-{
- loff_t offset;
+#include "xlat/splice_flags.h"
- if (!addr)
- tprints("NULL");
- else if (umove(tcp, addr, &offset) < 0)
- tprintf("%#lx", addr);
- else
- tprintf("[%llu]", (unsigned long long int) offset);
-}
-
-int
-sys_sendfile64(struct tcb *tcp)
+SYS_FUNC(tee)
{
- 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;
-}
-
-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 },
-};
+ /* 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_tee(struct tcb *tcp)
-{
- 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;
+ return RVAL_DECODED;
}
-int
-sys_splice(struct tcb *tcp)
+SYS_FUNC(splice)
{
- 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;
-}
+ /* 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_???");
-int
-sys_vmsplice(struct tcb *tcp)
-{
- 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;
+ 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], 1);
+ 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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