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* MFC 271389,286330,286331,286358,286378,286380,286381,286383,286388,286848,jhb2015-10-271-213/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 286849,286857,286860,286913,286914,286937-286940,286962,286963,288405, 288406,288424,288454-288456,288625,288626,288832,288834,288950,288997, 289080: Merge most of the recent changes to truss in HEAD. The largest effects are that fork following now uses a single truss process (and thus truss -c reports counts for the entire tree of processes instead of separate dumps for each process). truss -c also reports counts for all system calls instead of only a subset. More system call arguments are also decoded. System calls should now report the correct number of arguments (instead of 6), and some platforms that did not properly decode arguments might now do so (e.g. mips64). Changes relative to the equivalent commits to HEAD include: - The ia64 backend was refactored similar to the other backends. - _umtx_lock/_umtx_unlock entries were updated similar to other system call entries. - 10 does not have futimens(), utimensat(), EVFILT_PROCDESC, EVFILT_SENDFILE, RLIMIT_KQUEUES, O_VERIFY, NOTE_FILE_POLL, or EV_FORCEONESHOT. 271389: Stop accessing the saved stack pointer by looking past the end of the array of registers. 286330: Whitespace fix: remove some spurious spaces before commas. 286331: Rework get_string() to make it more robust when fetching strings of unknown length. In particular, instead of blinding fetching 1k blocks, do an initial fetch up to the end of the current page followed by page-sized fetches up to the maximum size. Previously if the 1k buffer crossed a page boundary and the second page was not valid, the entire operation would fail. 286358: Add recently added values of various flags and enumerations including kevent filters, kevent flags, flags to mmap, seek locations, fcntl operations, file flags, socket domains, open flags, resource limits, and pathconf values. 286378: Don't mark the fcntl flag argument as an output parameter so that it is always decoded. Previously the argument was not decoded if fcntl() failed. 286380: Decode the arguments to mkfifo() and fix an off-by-one error in the arguments to mknod(). 286381: Decode the arguments passed to the *at() family of system calls. This is especially useful now that libc's open() always calls openat(). While here, fix a few other things: - Decode the mode argument passed to access(), eaccess(), and faccessat(). - Decode the atfd paramete to pretty-print AT_FDCWD. - Decode the special AT_* flags used with some of the *at() system calls. - Decode arguments for fchmod(), lchmod(), fchown(), lchown(), eaccess(), and futimens(). - Decode both of the timeval structures passed to futimes() instead of just the first one. 286383: Whitespace fixes to consistently use spaces before }'s and wrap long lines. 286388: Consistently use both leading and trailing spaces inside of the {}'s when pretty-printing structures. Most structures used both spaces, but some only used a trailing space and some used neither. 286848: - Decode the arguments for several signal-related system calls: sigpending, sigqueue, sigreturn, sigsuspend, sigtimedwait, sigwait, sigwaitinfo, and thr_kill. - Print signal sets as a structure (with {}'s) and in particular use this to differentiate empty sets from a NULL pointer. - Decode arguments for some other system calls: issetugid, pipe2, sysarch (operations are only decoded for amd64 and i386), and thr_self. 286849: Decode the optional SOCK_NONBLOCK and SOCK_CLOEXEC flags passed in a socket type. 286857: Tidy the linux_socketcall decoding: - Don't exit if get_struct() fails, instead print the raw pointer value to match all other argument decoding cases. - Use an xlat table instead of a home-rolled switch for the operation name. - Display the nested socketcall args structure as a structure instead of as two inline arguments. 286860: Use an xlat table and xlookup() instead of a home-rolled version for the sigprocmask operation type. 286913: Change the argument formatting function to use a stdio FILE object opened with open_memstream() to build the string for each argument. This allows for more complicated argument building without resorting to intermediate malloc's, etc. Related, the strsig*() functions no longer return allocated strings but use a static global buffer instead. 286914: Expand the decoding of kevent structures. - Print the ident value as decimal instead of hexadecimal for filter types that use "small" values such as file descriptors and PIDs. - Decode NOTE_* flags in the fflags field of kevents for several system filter types. 286937: Use nitems(). 286938: Various style and whitespace fixes. 287939: Always use %j with an intmax_t cast to print time_t values. time_t is longer than long on 32-bit platforms with a 64-bit time_t. 286940: ino_t is unsigned, so use uintmax_t instead of intmax_t when printing it. 286962: Rework the argv and env string fetching for execve to be more robust. Before truss would fetch 100 string pointers and happily walk off the end of the array if it never found a NULL. This also means for a short argv list it could fail entirely if the 100 string pointers spanned into an unmapped page. Instead, fetch page-aligned blocks of string pointers in a loop fetching each string until a NULL is found. While here, make use of the open memstream file descriptor instead of allocating a temporary array. This allows us to fetch each string once instead of twice. 286963: Handle the conditional decoding of execve() argument and environment arrays generically rather than duplicating a hack in all of the backends. - Add two new system call argument types and use them instead of StringArray for the argument and environment arguments execve and linux_execve. - Honor the -a/-e flags in the handling of these new types. - Instead of printing "<missing argument>" when the decoding is disabled, print the raw pointer value. 288405: Decode recently added procctl(2) operations. 288406: Trim trailing whitespace. 288424: Several changes to truss. - Refactor the interface between the ABI-independent code and the ABI-specific backends. The backends now provide smaller hooks to fetch system call arguments and return values. The rest of the system call entry and exit handling that was previously duplicated among all the backends has been moved to one place. - Merge the loop when waiting for an event with the loop for handling stops. This also means not emulating a procfs-like interface on top of ptrace(). Instead, use a single event loop that fetches process events via waitid(). Among other things this allows us to report the full 32-bit exit value. - Use PT_FOLLOW_FORK to follow new child processes instead of forking a new truss process for each new child. This allows one truss process to monitor a tree of processes and truss -c should now display one total for the entire tree instead of separate summaries per process. - Use the recently added fields to ptrace_lwpinfo to determine the current system call number and argument count. The latter is especially useful and fixes a regression since the conversion from procfs. truss now generally prints the correct number of arguments for most system calls rather than printing extra arguments for any call not listed in the table in syscalls.c. - Actually check the new ABI when processes call exec. The comments claimed that this happened but it was not being done (perhaps this was another regression in the conversion to ptrace()). If the new ABI after exec is not supported, truss detaches from the process. If truss does not support the ABI for a newly executed process the process is killed before it returns from exec. - Along with the refactor, teach the various ABI-specific backends to fetch both return values, not just the first. Use this to properly report the full 64-bit return value from lseek(). In addition, the handler for "pipe" now pulls the pair of descriptors out of the return values (which is the true kernel system call interface) but displays them as an argument (which matches the interface exported by libc). - Each ABI handler adds entries to a linker set rather than requiring a statically defined table of handlers in main.c. - The arm and mips system call fetching code was changed to follow the same pattern as amd64 (and the in-kernel handler) of fetching register arguments first and then reading any remaining arguments from the stack. This should fix indirect system call arguments on at least arm. - The mipsn32 and n64 ABIs will now look for arguments in A4 through A7. - Use register %ebp for the 6th system call argument for Linux/i386 ABIs to match the in-kernel argument fetch code. - For powerpc binaries on a powerpc64 system, fetch the extra arguments on the stack as 32-bit values that are then copied into the 64-bit argument array instead of reading the 32-bit values directly into the 64-bit array. 288454: - Remove extra integer argument from truncate() and ftruncate(). This is probably fallout from the removal of the extra padding argument before off_t in 7. However, that padding still exists for 32-bit powerpc, so use QUAD_ALIGN. - Fix QUAD_ALIGN to be zero for powerpc64. It should only be set to 1 for 32-bit platforms that add padding to align 64-bit arguments. 288455: The id_t type used to pass IDs to wait6(2) and procctl(6) is a 64-bit integer. Fix the argument decoding to treat this as a quad instead of an int. This includes using QUAD_ALIGN and QUAD_SLOTS as necessary. To continue printing IDs in decimal, add a new QuadHex argument type that prints a 64-bit integer in hex, use QuadHex for the existing off_t arguments, repurpose Quad to print a 64-bit integer in decimal, and use Quad for id_t arguments. This fixes the decoding of wait6(2) and procctl(2) on 32-bit platforms. 288456: Rather than groveling around in a socket address structure for a socket address's length (and then overriding it if it "looks wrong"), use the next argument to the system call to determine the length. This is more reliable since this is what the kernel depends on anyway and is also simpler. 288625: Add decoding for struct statfs. 288626: Style fix. 288832: Fix tracking of unknown syscalls for 'truss -c'. This is done by changing get_syscall() to either lookup the known syscall or add it into the list with the default handlers for printing. This also simplifies some code to not have to check if the syscall variable is set or NULL. 288834: Add decoding for modfind(2) 288950: Group the decoded system calls by ABI and sort the calls within each ABI. 288997: Correct a comment. 289080: Let -c imply -S (hide signal output). Without this, the signals are shown seemingly randomly in the output before the final summary is shown. This is especially noticeable when there is not much output from the application being traced.
* Add arm bits to truss.cognet2013-03-071-0/+3
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* Revert r247300 for now. I'll post a new changeset for review.delphij2013-02-261-4/+4
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* Expose timespec and timeval macros when __BSD_VISIBLE is defined. Thisdelphij2013-02-261-4/+4
| | | | | | | | | | | allows userland application to use the following macros: timespecclear, timespecisset, timespeccmp, timespecadd, timespecsub; timevalclear, timevalisset, timevalcmp. MFC after: 1 month
* truss: use 'e' flag for fopen instead of fcntl(.., FD_CLOEXEC)mjg2013-01-271-7/+4
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* truss: if file requested with -o flag could not be opened print the reasonmjg2013-01-271-1/+1
| | | | MFC after: 3 days
* - Make truss thread-aware.zont2012-09-161-11/+11
| | | | | Approved by: kib (mentor) MFC after: 2 weeks
* - Fix detaching under some circumstances.zont2012-09-121-4/+9
| | | | | | | | | | | | | | | | | | | | | When truss is detaching from very active process it is possible to hang on waitpid(2) in restore_proc() forever, because ptrace(PT_SYSCALL) must be called before detaching, to allow the debugging process to continue execution. Also when truss called with '-c' argument, it does not print anything after detach, because it immediately exits from restore_proc(). To fix these two problems make detaching deferred, but then it is impossible to detach from a process which does not do any system call. To fix this issue use sigaction(2) instead of signal(3) to disable SA_RESTART flag for waitpid(2) that makes it non-restartable. Remove global variable child_pid, because now detaching is handled in context where child's pid is known. Reported by: mjg Tested by: mjg, swills Approved by: kib (mentor) MFC after: 2 weeks
* - Style(9) cleanup.zont2012-09-021-27/+24
| | | | Approved by: kib (mentor)
* Add more static keywords to truss(1) source code.ed2011-12-101-1/+1
| | | | | | There are some tables in the source code that are only used by the individual source files themselves. Therefore there is no need to export them.
* Fix typos in comments, no functional changes.bcr2011-05-191-1/+1
| | | | | | Found by: codespell Reviewed by: alfred MFC after: 1 week
* Simplify various code that allowed for sys_signame being lower case.jilles2011-03-061-4/+0
| | | | This was changed in r218285.
* Make sys_signame upper case.jilles2011-02-041-1/+1
| | | | | | | | | | | | This matches the constants from <signal.h> with 'SIG' removed, which POSIX requires kill and trap to accept and 'kill -l' to write. 'kill -l', 'trap', 'trap -l' output is now upper case. In Turkish locales, signal names with an upper case 'I' are now accepted, while signal names with a lower case 'i' are no longer accepted, and the output of 'killall -l' now contains proper capital 'I' without dot instead of a dotted capital 'I'.
* Set FD_CLOEXEC for the output file only when the file has been specifiedjh2010-11-131-6/+7
| | | | | | | | | with the -o option. Setting the flag for stderr (the default) could cause the traced process to redirect stderr to a random file. PR: bin/152151 Submitted by: ashish MFC after: 5 days
* Fix breakage introduced in r211725 and improve functionality of truss onnwhitehorn2010-08-281-0/+3
| | | | 64-bit powerpc by adding 32-bit compatibility features.
* Fix copyright spelling.imp2010-03-101-1/+1
| | | | | PR: 139825 Submitted by: Ruslan Mahmatkhanov
* Avoid sharing the file descriptor of the output file with tracedjh2009-12-201-0/+6
| | | | | | | | | processes by setting the FD_CLOEXEC flag for the output file. PR: bin/140493 Submitted by: Erik Lax OK'ed by: delphij Approved by: trasz (mentor)
* Revert most part of 200420 as requested, as more review and polish isdelphij2009-12-131-0/+2
| | | | needed.
* Remove unneeded header includes from usr.bin/ except contributed code.delphij2009-12-111-2/+0
| | | | Tested with: make universe
* Reduce diff against my local version: replace malloc+memset() cases to calloc().delphij2009-05-151-4/+3
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* Add -c option to summarize number of calls, errors, and system time.dds2009-05-121-4/+14
| | | | Reviewed by: alfred
* Don't exit until all truss children were exit.delphij2009-04-131-4/+10
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* Add preliminary support for truss on MIPS. It compiles, but has notimp2009-02-151-0/+5
| | | | | | | | been extensively tested. And the ELF64 stuff likely is not quite right... # There's a lot of cut-n-paste code here that could easily be # refactored, at least for FreeBSD syscalls.
* Retire some stale alpha references.jhb2008-05-161-3/+0
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* Teach truss about 32-bit FreeBSD and Linux binaries on amd64. Somejhb2008-05-161-0/+2
| | | | | | | additional work is needed to handle ABI-specific syscall argument parsing, but this gets the basic tracing working. MFC after: 1 week
* Syscalls have at most 6 argument, not 5. See mmap(2) for example.marcel2007-07-281-1/+1
| | | | | | | Previously the offset argument to mmap(2) would be bogus as we weren't reading it in. Approved by: re (kensmith)
* MFp4: Bugfixes for truss(1):delphij2007-06-261-11/+6
| | | | | | | | | | | - Fix logic handling execve(). We will not be able to obtain information otherwise. - truss coredump [1]. - truss does not work against itself [2]. PR: bin/58970 [1], bin/45193 [2] Submitted by: Howard Su Approved by: re (kensmith)
* Make use of ptrace(2) instead of procfs in truss(1), eliminatingdelphij2007-04-101-139/+101
| | | | | | | | yet another need of an available /proc/ mount. Tested with: make universe Submitted by: howardsu Reviewed by: alfred
* - Add decoding of kse_release, kevent, sigprocmask, unmount, socket, getrusage,pav2006-05-151-0/+34
| | | | | | | | | | | | | | | | | | | rename, __getcwd, shutdown, getrlimit, setrlimit, _umtx_lock, _umtx_unlock, pathconf, truncate, ftruncate, kill - Decode more arguments of open, mprot, *stat, and fcntl. - Convert all constant-macro and bitfield decoding to lookup tables; much cleaner than previous code. - Print the timestamp of process exit and signal reception when -d or -D are in use - Try six times with 1/2 second delay to debug the child PR: bin/52190 (updated) Submitted by: Dan Nelson <dnelson@allantgroup.com> Approved by: alfred
* Add powerpc support for truss.grehan2006-01-051-0/+4
| | | | | Initial work by: Orlando Bassotto < orlando at break net > Modified by: grehan
* Add a -s flag for the same functionality as strace. Introduce a Namebrian2006-01-021-3/+7
| | | | | | | | | | | | | | | | type which is a String type that has no -s limitations applied to it. Change most Strings in the code to Names and add a few extra syscalls, namely munmap, read, rename and symlink. This was enough to facilitate following file descriptor allocations in the code more easily and getting a hint at what's being read/written from/to files. More syscalls should really be added. While here, fix an off-by-one bug in the buffer truncation code and add a fflush so that truss's output reflects the syscall that the program is stuck in. Sponsored by: Sophos/Activestate MFC after: 2 weeks
* When doing the initial open of the proc via procfs, complain if we arealfred2005-03-271-4/+10
| | | | | | unable to open the /proc/pid/mem file. Otherwise doing a truss on a nonexistant pid makes us return success even though no such process exists.
* I've been working on this somewhat so I'm moving thealfred2005-03-271-218/+231
| | | | parts I'm touching to be as style(9) compliant as I can.
* When reporting reciept of a signal, print the signal's name.alfred2004-07-171-1/+23
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* A first stab at truss support for amd64, basically cogged from i386.dwmalone2004-06-121-0/+3
| | | | It seems to work in my limited tests.
* Fix signal behaviour.cracauer2003-12-281-2/+7
| | | | | | | | | | | | | | | | | | | | | In my last change I made sure that the signal as reported from a truss exit is the same as if truss wasn't between parent and trussed program. I was smart enough to not have it coredump on SIGQUIT but it didn't ocur to me SIGSEGV might cause a coredump, too :-) So get rid of SIGQUIT extra hack and limit coredumpsize to zero instead. Tested: still works, correct signal reported. No more codedumps from SIGSEGV in the trussed proces. This file compiles cleanly on AMD64 (sledge). PR: Submitted by: Reviewed by: Approved by: Obtained from: MFC after:
* Port truss(1) to 64-bit architectures:marcel2003-11-091-1/+1
| | | | | | | | | | | | | | | | | | o Syscall return values do not fit in int on 64-bit architectures. Change the type of retval in <arch>_syscall_exit() to long and change the prototype of said function to return a long as well. o Change the prototype of print_syscall_ret() to take a long for the return address and change the format string accordingly. o Replace the code sequence tmp = malloc(X); sprintf(tmp, format, ...); with X by definition too small on 64-bit platforms by asprintf(&tmp, format, ...); With these changes the output makes sense again, although it does mess up the tabulation on ia64. Go widescreen... Not tested on: alpha, sparc64.
* Add FBSDID. Do not \n terminate warnx() argument. fprint() -> warnx().charnier2003-09-071-5/+3
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* Port to ia64. It builds, but usability is very limited.marcel2002-11-101-0/+3
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* Don't depend on <signal.h> to include <sys/time.h>, instead includemike2002-10-061-0/+1
| | | | | <sys/time.h> directly. This is mostly bogus since CLOCK_REALTIME should be defined in <time.h>, which these files already include.
* - Use time.h not sys/time.h.mdodd2002-08-061-1/+1
| | | | | | - Fix printf format errors. Submitted by: bde
* Use timespec not timeval.mdodd2002-08-051-3/+3
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* Ported to sparc64.jake2002-08-041-0/+3
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* Include <sys/time.h> for the declaration of struct timeval. Do notbde2002-08-041-0/+1
| | | | | | depend on namespace pollution in <signal.h>. (truss shouldn't be using timevals anyway, since it was implemented long after timevals were obsoleted by timespecs.)
* Add options to print the argument and environment string parameters tomdodd2002-08-041-3/+9
| | | | | | | | | execve(). This could be done in a more general manner but it still wouldn't be very pretty. MFC after: 3 weeks
* Add a "FreeBSD ELF32" entry to ex_types[].mdodd2002-08-041-0/+1
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* Add options to print absolute and relative timestamps.mdodd2002-08-041-3/+13
| | | | | PR: bin/25587 (in part) MFC after: 3 weeks
* Allow tracking fork()ed children.mdodd2002-08-041-4/+26
| | | | | PR: bin/25587 (in part) MFC after: 3 weeks
* Parameterize globals.mdodd2002-08-041-27/+33
| | | | | PR: bin/25587 (in part) MFC after: 3 weeks
* s/inline/__inline/markm2002-07-191-1/+1
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