| /* |
| * 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 |
| * 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. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. |
| */ |
| |
| #include "defs.h" |
| #include <fcntl.h> |
| #include <sys/file.h> |
| #ifdef HAVE_SYS_EPOLL_H |
| # include <sys/epoll.h> |
| #endif |
| #ifdef HAVE_LINUX_PERF_EVENT_H |
| # include <linux/perf_event.h> |
| #endif |
| |
| static const struct xlat fcntlcmds[] = { |
| XLAT(F_DUPFD), |
| XLAT(F_GETFD), |
| XLAT(F_SETFD), |
| XLAT(F_GETFL), |
| XLAT(F_SETFL), |
| XLAT(F_GETLK), |
| XLAT(F_SETLK), |
| XLAT(F_SETLKW), |
| XLAT(F_GETOWN), |
| XLAT(F_SETOWN), |
| #ifdef F_RSETLK |
| XLAT(F_RSETLK), |
| #endif |
| #ifdef F_RSETLKW |
| XLAT(F_RSETLKW), |
| #endif |
| #ifdef F_RGETLK |
| XLAT(F_RGETLK), |
| #endif |
| #ifdef F_CNVT |
| XLAT(F_CNVT), |
| #endif |
| #ifdef F_SETSIG |
| XLAT(F_SETSIG), |
| #endif |
| #ifdef F_GETSIG |
| XLAT(F_GETSIG), |
| #endif |
| #ifdef F_CHKFL |
| XLAT(F_CHKFL), |
| #endif |
| #ifdef F_DUP2FD |
| XLAT(F_DUP2FD), |
| #endif |
| #ifdef F_ALLOCSP |
| XLAT(F_ALLOCSP), |
| #endif |
| #ifdef F_ISSTREAM |
| XLAT(F_ISSTREAM), |
| #endif |
| #ifdef F_PRIV |
| XLAT(F_PRIV), |
| #endif |
| #ifdef F_NPRIV |
| XLAT(F_NPRIV), |
| #endif |
| #ifdef F_QUOTACL |
| XLAT(F_QUOTACL), |
| #endif |
| #ifdef F_BLOCKS |
| XLAT(F_BLOCKS), |
| #endif |
| #ifdef F_BLKSIZE |
| XLAT(F_BLKSIZE), |
| #endif |
| #ifdef F_GETOWN |
| XLAT(F_GETOWN), |
| #endif |
| #ifdef F_SETOWN |
| XLAT(F_SETOWN), |
| #endif |
| #ifdef F_REVOKE |
| XLAT(F_REVOKE), |
| #endif |
| #ifdef F_SETLK |
| XLAT(F_SETLK), |
| #endif |
| #ifdef F_SETLKW |
| XLAT(F_SETLKW), |
| #endif |
| #ifdef F_FREESP |
| XLAT(F_FREESP), |
| #endif |
| #ifdef F_GETLK |
| XLAT(F_GETLK), |
| #endif |
| #ifdef F_SETLK64 |
| XLAT(F_SETLK64), |
| #endif |
| #ifdef F_SETLKW64 |
| XLAT(F_SETLKW64), |
| #endif |
| #ifdef F_FREESP64 |
| XLAT(F_FREESP64), |
| #endif |
| #ifdef F_GETLK64 |
| XLAT(F_GETLK64), |
| #endif |
| #ifdef F_SHARE |
| XLAT(F_SHARE), |
| #endif |
| #ifdef F_UNSHARE |
| XLAT(F_UNSHARE), |
| #endif |
| #ifdef F_SETLEASE |
| XLAT(F_SETLEASE), |
| #endif |
| #ifdef F_GETLEASE |
| XLAT(F_GETLEASE), |
| #endif |
| #ifdef F_NOTIFY |
| XLAT(F_NOTIFY), |
| #endif |
| #ifdef F_DUPFD_CLOEXEC |
| XLAT(F_DUPFD_CLOEXEC), |
| #endif |
| XLAT_END |
| }; |
| |
| static const struct xlat fdflags[] = { |
| #ifdef FD_CLOEXEC |
| XLAT(FD_CLOEXEC), |
| #endif |
| XLAT_END |
| }; |
| |
| #ifdef LOCK_SH |
| |
| static const struct xlat flockcmds[] = { |
| XLAT(LOCK_SH), |
| XLAT(LOCK_EX), |
| XLAT(LOCK_NB), |
| XLAT(LOCK_UN), |
| XLAT_END |
| }; |
| |
| #endif /* LOCK_SH */ |
| |
| static const struct xlat lockfcmds[] = { |
| XLAT(F_RDLCK), |
| XLAT(F_WRLCK), |
| XLAT(F_UNLCK), |
| #ifdef F_EXLCK |
| XLAT(F_EXLCK), |
| #endif |
| #ifdef F_SHLCK |
| XLAT(F_SHLCK), |
| #endif |
| XLAT_END |
| }; |
| |
| #ifdef F_NOTIFY |
| static const struct xlat notifyflags[] = { |
| #ifdef DN_ACCESS |
| XLAT(DN_ACCESS), |
| #endif |
| #ifdef DN_MODIFY |
| XLAT(DN_MODIFY), |
| #endif |
| #ifdef DN_CREATE |
| XLAT(DN_CREATE), |
| #endif |
| #ifdef DN_DELETE |
| XLAT(DN_DELETE), |
| #endif |
| #ifdef DN_RENAME |
| XLAT(DN_RENAME), |
| #endif |
| #ifdef DN_ATTRIB |
| XLAT(DN_ATTRIB), |
| #endif |
| #ifdef DN_MULTISHOT |
| XLAT(DN_MULTISHOT), |
| #endif |
| XLAT_END |
| }; |
| #endif |
| |
| static const struct xlat perf_event_open_flags[] = { |
| #ifdef PERF_FLAG_FD_NO_GROUP |
| XLAT(PERF_FLAG_FD_NO_GROUP), |
| #endif |
| #ifdef PERF_FLAG_FD_OUTPUT |
| XLAT(PERF_FLAG_FD_OUTPUT), |
| #endif |
| #ifdef PERF_FLAG_PID_CGROUP |
| XLAT(PERF_FLAG_PID_CGROUP), |
| #endif |
| XLAT_END |
| }; |
| |
| #if defined(F_SETLK64) && F_SETLK64 + 0 != F_SETLK |
| # define HAVE_F_SETLK64 1 |
| #else |
| # define HAVE_F_SETLK64 0 |
| #endif |
| |
| #if defined(F_SETLKW64) && F_SETLKW64 + 0 != F_SETLKW |
| # define HAVE_F_SETLKW64 1 |
| #else |
| # define HAVE_F_SETLKW64 0 |
| #endif |
| |
| #if defined(F_GETLK64) && F_GETLK64+0 != F_GETLK |
| # define HAVE_F_GETLK64 1 |
| #else |
| # define HAVE_F_GETLK64 0 |
| #endif |
| |
| #if defined(X32) || defined(F_FREESP64) || \ |
| HAVE_F_SETLK64 || HAVE_F_SETLKW64 || HAVE_F_GETLK64 |
| |
| #ifndef HAVE_STRUCT_FLOCK64 |
| struct flock64 { |
| short int l_type, l_whence; |
| int64_t l_start, l_len; |
| int l_pid; |
| }; |
| #endif |
| |
| /* fcntl/lockf */ |
| static void |
| printflock64(struct tcb *tcp, long addr, int getlk) |
| { |
| struct flock64 fl; |
| |
| if (umove(tcp, addr, &fl) < 0) { |
| tprints("{...}"); |
| return; |
| } |
| tprints("{type="); |
| printxval(lockfcmds, fl.l_type, "F_???"); |
| tprints(", whence="); |
| printxval(whence_codes, fl.l_whence, "SEEK_???"); |
| tprintf(", start=%lld, len=%lld", (long long) fl.l_start, (long long) fl.l_len); |
| if (getlk) |
| tprintf(", pid=%lu}", (unsigned long) fl.l_pid); |
| else |
| tprints("}"); |
| } |
| #endif |
| |
| /* fcntl/lockf */ |
| static void |
| printflock(struct tcb *tcp, long addr, int getlk) |
| { |
| struct flock fl; |
| |
| #if SUPPORTED_PERSONALITIES > 1 |
| # ifdef X32 |
| if (current_personality == 0) { |
| printflock64(tcp, addr, getlk); |
| return; |
| } |
| # endif |
| if (current_wordsize != sizeof(fl.l_start)) { |
| if (current_wordsize == 4) { |
| /* 32-bit x86 app on x86_64 and similar cases */ |
| struct { |
| short int l_type; |
| short int l_whence; |
| int32_t l_start; /* off_t */ |
| int32_t l_len; /* off_t */ |
| int32_t l_pid; /* pid_t */ |
| } fl32; |
| if (umove(tcp, addr, &fl32) < 0) { |
| tprints("{...}"); |
| return; |
| } |
| fl.l_type = fl32.l_type; |
| fl.l_whence = fl32.l_whence; |
| fl.l_start = fl32.l_start; |
| fl.l_len = fl32.l_len; |
| fl.l_pid = fl32.l_pid; |
| } else { |
| /* let people know we have a problem here */ |
| tprintf("<decode error: unsupported wordsize %d>", |
| current_wordsize); |
| return; |
| } |
| } else |
| #endif |
| { |
| if (umove(tcp, addr, &fl) < 0) { |
| tprints("{...}"); |
| return; |
| } |
| } |
| tprints("{type="); |
| printxval(lockfcmds, fl.l_type, "F_???"); |
| tprints(", whence="); |
| printxval(whence_codes, fl.l_whence, "SEEK_???"); |
| #ifdef X32 |
| tprintf(", start=%lld, len=%lld", fl.l_start, fl.l_len); |
| #else |
| tprintf(", start=%ld, len=%ld", fl.l_start, fl.l_len); |
| #endif |
| if (getlk) |
| tprintf(", pid=%lu}", (unsigned long) fl.l_pid); |
| else |
| tprints("}"); |
| } |
| |
| int |
| sys_fcntl(struct tcb *tcp) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| printxval(fcntlcmds, tcp->u_arg[1], "F_???"); |
| switch (tcp->u_arg[1]) { |
| case F_SETFD: |
| tprints(", "); |
| printflags(fdflags, tcp->u_arg[2], "FD_???"); |
| break; |
| case F_SETOWN: case F_DUPFD: |
| #ifdef F_DUPFD_CLOEXEC |
| case F_DUPFD_CLOEXEC: |
| #endif |
| tprintf(", %ld", tcp->u_arg[2]); |
| break; |
| case F_SETFL: |
| tprints(", "); |
| tprint_open_modes(tcp->u_arg[2]); |
| break; |
| case F_SETLK: case F_SETLKW: |
| #ifdef F_FREESP |
| case F_FREESP: |
| #endif |
| tprints(", "); |
| printflock(tcp, tcp->u_arg[2], 0); |
| break; |
| #if defined(F_FREESP64) || HAVE_F_SETLK64 || HAVE_F_SETLKW64 |
| #ifdef F_FREESP64 |
| case F_FREESP64: |
| #endif |
| /* Linux glibc defines SETLK64 as SETLK, |
| even though the kernel has different values - as does Solaris. */ |
| #if HAVE_F_SETLK64 |
| case F_SETLK64: |
| #endif |
| #if HAVE_F_SETLKW64 |
| case F_SETLKW64: |
| #endif |
| tprints(", "); |
| printflock64(tcp, tcp->u_arg[2], 0); |
| break; |
| #endif /* defined(F_FREESP64) || HAVE_F_SETLK64 || HAVE_F_SETLKW64 */ |
| #ifdef F_NOTIFY |
| case F_NOTIFY: |
| tprints(", "); |
| printflags(notifyflags, tcp->u_arg[2], "DN_???"); |
| break; |
| #endif |
| #ifdef F_SETLEASE |
| case F_SETLEASE: |
| tprints(", "); |
| printxval(lockfcmds, tcp->u_arg[2], "F_???"); |
| break; |
| #endif |
| } |
| } |
| else { |
| switch (tcp->u_arg[1]) { |
| case F_DUPFD: |
| #ifdef F_DUPFD_CLOEXEC |
| case F_DUPFD_CLOEXEC: |
| #endif |
| case F_SETFD: case F_SETFL: |
| case F_SETLK: case F_SETLKW: |
| case F_SETOWN: case F_GETOWN: |
| #ifdef F_NOTIFY |
| case F_NOTIFY: |
| #endif |
| #ifdef F_SETLEASE |
| case F_SETLEASE: |
| #endif |
| break; |
| case F_GETFD: |
| if (syserror(tcp) || tcp->u_rval == 0) |
| return 0; |
| tcp->auxstr = sprintflags("flags ", fdflags, tcp->u_rval); |
| return RVAL_HEX|RVAL_STR; |
| case F_GETFL: |
| if (syserror(tcp)) |
| return 0; |
| tcp->auxstr = sprint_open_modes(tcp->u_rval); |
| return RVAL_HEX|RVAL_STR; |
| case F_GETLK: |
| tprints(", "); |
| printflock(tcp, tcp->u_arg[2], 1); |
| break; |
| #if HAVE_F_GETLK64 |
| case F_GETLK64: |
| tprints(", "); |
| printflock64(tcp, tcp->u_arg[2], 1); |
| break; |
| #endif |
| #ifdef F_GETLEASE |
| case F_GETLEASE: |
| if (syserror(tcp)) |
| return 0; |
| tcp->auxstr = xlookup(lockfcmds, tcp->u_rval); |
| return RVAL_HEX|RVAL_STR; |
| #endif |
| default: |
| tprintf(", %#lx", tcp->u_arg[2]); |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| #ifdef LOCK_SH |
| |
| int |
| sys_flock(struct tcb *tcp) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| printflags(flockcmds, tcp->u_arg[1], "LOCK_???"); |
| } |
| return 0; |
| } |
| #endif /* LOCK_SH */ |
| |
| int |
| sys_close(struct tcb *tcp) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| } |
| return 0; |
| } |
| |
| static int |
| do_dup2(struct tcb *tcp, int flags_arg) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| printfd(tcp, tcp->u_arg[1]); |
| if (flags_arg >= 0) { |
| tprints(", "); |
| printflags(open_mode_flags, tcp->u_arg[flags_arg], "O_???"); |
| } |
| } |
| return 0; |
| } |
| |
| int |
| sys_dup2(struct tcb *tcp) |
| { |
| return do_dup2(tcp, -1); |
| } |
| |
| int |
| sys_dup3(struct tcb *tcp) |
| { |
| return do_dup2(tcp, 2); |
| } |
| |
| #if defined(ALPHA) |
| int |
| sys_getdtablesize(struct tcb *tcp) |
| { |
| return 0; |
| } |
| #endif |
| |
| static int |
| decode_select(struct tcb *tcp, long *args, enum bitness_t bitness) |
| { |
| int i, j; |
| int nfds, fdsize; |
| fd_set *fds; |
| const char *sep; |
| long arg; |
| |
| /* Kernel truncates arg[0] to int, we do the same. */ |
| nfds = (int) args[0]; |
| |
| /* Kernel rejects negative nfds, so we don't parse it either. */ |
| if (nfds < 0) { |
| nfds = 0; |
| fds = NULL; |
| } |
| /* Beware of select(2^31-1, NULL, NULL, NULL) and similar... */ |
| if (nfds > 1024*1024) |
| nfds = 1024*1024; |
| |
| /* |
| * We had bugs a-la "while (j < args[0])" and "umoven(args[0])" below. |
| * Instead of args[0], use nfds for fd count, fdsize for array lengths. |
| */ |
| fdsize = (((nfds + 7) / 8) + current_wordsize-1) & -current_wordsize; |
| |
| if (entering(tcp)) { |
| tprintf("%d", (int) args[0]); |
| |
| if (fdsize > 0) { |
| fds = malloc(fdsize); |
| if (!fds) |
| die_out_of_memory(); |
| } |
| for (i = 0; i < 3; i++) { |
| arg = args[i+1]; |
| if (arg == 0) { |
| tprints(", NULL"); |
| continue; |
| } |
| if (!verbose(tcp) || !fds) { |
| tprintf(", %#lx", arg); |
| continue; |
| } |
| if (umoven(tcp, arg, fdsize, (char *) fds) < 0) { |
| tprints(", [?]"); |
| continue; |
| } |
| tprints(", ["); |
| for (j = 0, sep = "";; j++) { |
| j = next_set_bit(fds, j, nfds); |
| if (j < 0) |
| break; |
| tprints(sep); |
| printfd(tcp, j); |
| sep = " "; |
| } |
| tprints("]"); |
| } |
| free(fds); |
| tprints(", "); |
| printtv_bitness(tcp, args[4], bitness, 0); |
| } |
| else { |
| static char outstr[1024]; |
| char *outptr; |
| #define end_outstr (outstr + sizeof(outstr)) |
| int ready_fds; |
| |
| if (syserror(tcp)) |
| return 0; |
| |
| ready_fds = tcp->u_rval; |
| if (ready_fds == 0) { |
| tcp->auxstr = "Timeout"; |
| return RVAL_STR; |
| } |
| |
| fds = malloc(fdsize); |
| if (!fds) |
| die_out_of_memory(); |
| |
| outptr = outstr; |
| sep = ""; |
| for (i = 0; i < 3 && ready_fds > 0; i++) { |
| int first = 1; |
| |
| arg = args[i+1]; |
| if (!arg || umoven(tcp, arg, fdsize, (char *) fds) < 0) |
| continue; |
| for (j = 0;; j++) { |
| j = next_set_bit(fds, j, nfds); |
| if (j < 0) |
| break; |
| /* +2 chars needed at the end: ']',NUL */ |
| if (outptr < end_outstr - (sizeof(", except [") + sizeof(int)*3 + 2)) { |
| if (first) { |
| outptr += sprintf(outptr, "%s%s [%u", |
| sep, |
| i == 0 ? "in" : i == 1 ? "out" : "except", |
| j |
| ); |
| first = 0; |
| sep = ", "; |
| } |
| else { |
| outptr += sprintf(outptr, " %u", j); |
| } |
| } |
| if (--ready_fds == 0) |
| break; |
| } |
| if (outptr != outstr) |
| *outptr++ = ']'; |
| } |
| free(fds); |
| /* This contains no useful information on SunOS. */ |
| if (args[4]) { |
| if (outptr < end_outstr - (10 + TIMEVAL_TEXT_BUFSIZE)) { |
| outptr += sprintf(outptr, "%sleft ", sep); |
| outptr = sprinttv(outptr, tcp, args[4], bitness, /*special:*/ 0); |
| } |
| } |
| *outptr = '\0'; |
| tcp->auxstr = outstr; |
| return RVAL_STR; |
| #undef end_outstr |
| } |
| return 0; |
| } |
| |
| int |
| sys_oldselect(struct tcb *tcp) |
| { |
| long args[5]; |
| |
| if (umoven(tcp, tcp->u_arg[0], sizeof args, (char *) args) < 0) { |
| tprints("[...]"); |
| return 0; |
| } |
| return decode_select(tcp, args, BITNESS_CURRENT); |
| } |
| |
| #ifdef ALPHA |
| int |
| sys_osf_select(struct tcb *tcp) |
| { |
| long *args = tcp->u_arg; |
| return decode_select(tcp, args, BITNESS_32); |
| } |
| #endif |
| |
| static const struct xlat epollctls[] = { |
| #ifdef EPOLL_CTL_ADD |
| XLAT(EPOLL_CTL_ADD), |
| #endif |
| #ifdef EPOLL_CTL_MOD |
| XLAT(EPOLL_CTL_MOD), |
| #endif |
| #ifdef EPOLL_CTL_DEL |
| XLAT(EPOLL_CTL_DEL), |
| #endif |
| XLAT_END |
| }; |
| |
| static const struct xlat epollevents[] = { |
| #ifdef EPOLLIN |
| XLAT(EPOLLIN), |
| #endif |
| #ifdef EPOLLPRI |
| XLAT(EPOLLPRI), |
| #endif |
| #ifdef EPOLLOUT |
| XLAT(EPOLLOUT), |
| #endif |
| #ifdef EPOLLRDNORM |
| XLAT(EPOLLRDNORM), |
| #endif |
| #ifdef EPOLLRDBAND |
| XLAT(EPOLLRDBAND), |
| #endif |
| #ifdef EPOLLWRNORM |
| XLAT(EPOLLWRNORM), |
| #endif |
| #ifdef EPOLLWRBAND |
| XLAT(EPOLLWRBAND), |
| #endif |
| #ifdef EPOLLMSG |
| XLAT(EPOLLMSG), |
| #endif |
| #ifdef EPOLLERR |
| XLAT(EPOLLERR), |
| #endif |
| #ifdef EPOLLHUP |
| XLAT(EPOLLHUP), |
| #endif |
| #ifdef EPOLLRDHUP |
| XLAT(EPOLLRDHUP), |
| #endif |
| #ifdef EPOLLONESHOT |
| XLAT(EPOLLONESHOT), |
| #endif |
| #ifdef EPOLLET |
| XLAT(EPOLLET), |
| #endif |
| XLAT_END |
| }; |
| |
| /* Not aliased to printargs_ld: we want it to have a distinct address */ |
| int |
| sys_epoll_create(struct tcb *tcp) |
| { |
| return printargs_ld(tcp); |
| } |
| |
| static const struct xlat epollflags[] = { |
| #ifdef EPOLL_CLOEXEC |
| XLAT(EPOLL_CLOEXEC), |
| #endif |
| #ifdef EPOLL_NONBLOCK |
| XLAT(EPOLL_NONBLOCK), |
| #endif |
| XLAT_END |
| }; |
| |
| int |
| sys_epoll_create1(struct tcb *tcp) |
| { |
| if (entering(tcp)) |
| printflags(epollflags, tcp->u_arg[0], "EPOLL_???"); |
| return 0; |
| } |
| |
| #ifdef HAVE_SYS_EPOLL_H |
| static void |
| print_epoll_event(struct epoll_event *ev) |
| { |
| tprints("{"); |
| printflags(epollevents, ev->events, "EPOLL???"); |
| /* We cannot know what format the program uses, so print u32 and u64 |
| which will cover every value. */ |
| tprintf(", {u32=%" PRIu32 ", u64=%" PRIu64 "}}", |
| ev->data.u32, ev->data.u64); |
| } |
| #endif |
| |
| int |
| sys_epoll_ctl(struct tcb *tcp) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| printxval(epollctls, tcp->u_arg[1], "EPOLL_CTL_???"); |
| tprints(", "); |
| printfd(tcp, tcp->u_arg[2]); |
| tprints(", "); |
| if (tcp->u_arg[3] == 0) |
| tprints("NULL"); |
| else { |
| #ifdef HAVE_SYS_EPOLL_H |
| struct epoll_event ev; |
| if (umove(tcp, tcp->u_arg[3], &ev) == 0) |
| print_epoll_event(&ev); |
| else |
| #endif |
| tprints("{...}"); |
| } |
| } |
| return 0; |
| } |
| |
| static void |
| epoll_wait_common(struct tcb *tcp) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| } else { |
| if (syserror(tcp)) |
| tprintf("%lx", tcp->u_arg[1]); |
| else if (tcp->u_rval == 0) |
| tprints("{}"); |
| else { |
| #ifdef HAVE_SYS_EPOLL_H |
| struct epoll_event ev, *start, *cur, *end; |
| int failed = 0; |
| |
| tprints("{"); |
| start = (struct epoll_event *) tcp->u_arg[1]; |
| end = start + tcp->u_rval; |
| for (cur = start; cur < end; ++cur) { |
| if (cur > start) |
| tprints(", "); |
| if (umove(tcp, (long) cur, &ev) == 0) |
| print_epoll_event(&ev); |
| else { |
| tprints("?"); |
| failed = 1; |
| break; |
| } |
| } |
| tprints("}"); |
| if (failed) |
| tprintf(" %#lx", (long) start); |
| #else |
| tprints("{...}"); |
| #endif |
| } |
| tprintf(", %d, %d", (int) tcp->u_arg[2], (int) tcp->u_arg[3]); |
| } |
| } |
| |
| int |
| sys_epoll_wait(struct tcb *tcp) |
| { |
| epoll_wait_common(tcp); |
| return 0; |
| } |
| |
| int |
| sys_epoll_pwait(struct tcb *tcp) |
| { |
| epoll_wait_common(tcp); |
| if (exiting(tcp)) { |
| tprints(", "); |
| /* NB: kernel requires arg[5] == NSIG / 8 */ |
| print_sigset_addr_len(tcp, tcp->u_arg[4], tcp->u_arg[5]); |
| tprintf(", %lu", tcp->u_arg[5]); |
| } |
| return 0; |
| } |
| |
| int |
| sys_select(struct tcb *tcp) |
| { |
| return decode_select(tcp, tcp->u_arg, BITNESS_CURRENT); |
| } |
| |
| int |
| sys_pselect6(struct tcb *tcp) |
| { |
| int rc = decode_select(tcp, tcp->u_arg, BITNESS_CURRENT); |
| if (entering(tcp)) { |
| long r; |
| struct { |
| unsigned long ptr; |
| unsigned long len; |
| } data; |
| #if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4 |
| if (current_wordsize == 4) { |
| struct { |
| uint32_t ptr; |
| uint32_t len; |
| } data32; |
| r = umove(tcp, tcp->u_arg[5], &data32); |
| data.ptr = data32.ptr; |
| data.len = data32.len; |
| } else |
| #endif |
| r = umove(tcp, tcp->u_arg[5], &data); |
| if (r < 0) |
| tprintf(", %#lx", tcp->u_arg[5]); |
| else { |
| tprints(", {"); |
| /* NB: kernel requires data.len == NSIG / 8 */ |
| print_sigset_addr_len(tcp, data.ptr, data.len); |
| tprintf(", %lu}", data.len); |
| } |
| } |
| return rc; |
| } |
| |
| static int |
| do_eventfd(struct tcb *tcp, int flags_arg) |
| { |
| if (entering(tcp)) { |
| tprintf("%lu", tcp->u_arg[0]); |
| if (flags_arg >= 0) { |
| tprints(", "); |
| printflags(open_mode_flags, tcp->u_arg[flags_arg], "O_???"); |
| } |
| } |
| return 0; |
| } |
| |
| int |
| sys_eventfd(struct tcb *tcp) |
| { |
| return do_eventfd(tcp, -1); |
| } |
| |
| int |
| sys_eventfd2(struct tcb *tcp) |
| { |
| return do_eventfd(tcp, 1); |
| } |
| |
| int |
| sys_perf_event_open(struct tcb *tcp) |
| { |
| if (entering(tcp)) { |
| tprintf("%#lx, %d, %d, %d, ", |
| tcp->u_arg[0], |
| (int) tcp->u_arg[1], |
| (int) tcp->u_arg[2], |
| (int) tcp->u_arg[3]); |
| printflags(perf_event_open_flags, tcp->u_arg[4], |
| "PERF_FLAG_???"); |
| } |
| return 0; |
| } |