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* MFC 341802: Validate the string size parameter passed to -s.John Baldwin2019-01-021-1/+4
| | | | | | | | | Use strtonum() to reject negative sizes instead of core dumping. PR: 232206 Notes: svn path=/stable/11/; revision=342708
* MFC r328037: Rename 'recv' to 'receive' to appease shadow warnings from GCC.Kyle Evans2018-04-101-8/+8
| | | | Notes: svn path=/stable/11/; revision=332377
* MFC r328081:Michael Tuexen2018-04-071-0/+1
| | | | | | | Add missing assignment to make sure non-first cmsgs are handled as such. Notes: svn path=/stable/11/; revision=332253
* MFC r328059:Michael Tuexen2018-04-071-0/+5
| | | | | | | Improve the printing of cmgs when the length is 0. Fix error handling. Notes: svn path=/stable/11/; revision=332252
* MFC r328058:Michael Tuexen2018-04-071-6/+6
| | | | | | | Using %p already prints "0x", so don't do it explicitly. Notes: svn path=/stable/11/; revision=332251
* MFC r328015:Michael Tuexen2018-04-072-130/+397
| | | | | | | Decode msghdr argument of sendmsg() and recvmsg(). Notes: svn path=/stable/11/; revision=332249
* MFC r327967:Michael Tuexen2018-04-072-6/+38
| | | | | | | | | | | Improve support for sctp_generic_recvmsg() and sctp_generic_sendmsg() and add support for sctp_generic_sendmsg_iov(). Handle the struct iovec argument and the struct sctp_sndrcvinfo arguments. Notes: svn path=/stable/11/; revision=332245
* MFC r327961:Michael Tuexen2018-04-071-2/+2
| | | | | | | | Mark the iovec parameters of writev() and readv() as IN and OUT. This makes truss work on readv() as expected. Notes: svn path=/stable/11/; revision=332242
* MFC r327921:Michael Tuexen2018-04-071-1/+1
| | | | | | | Fix a typo introduced in r327919. Notes: svn path=/stable/11/; revision=332241
* MFC r327919:Michael Tuexen2018-04-072-1/+67
| | | | | | | | | Add support for readv() and writev() to truss. Sponsored by:i Netflix, Inc. Notes: svn path=/stable/11/; revision=332239
* Revert r330897:Eitan Adler2018-03-2913-37/+11
| | | | | | | | | | | | | | | | | | | | This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re) Notes: svn path=/stable/11/; revision=331722
* MFC r326356:Eitan Adler2018-03-191-5/+35
| | | | | | | | | | Replace a reference to a license in another file with the license text. The relevant file was recently renamed, so the reference was stale. In addition, explicit licenses are more typical in our sources. Notes: svn path=/stable/11/; revision=331186
* Partial merge of the SPDX changesEitan Adler2018-03-1413-11/+37
| | | | | | | | | | These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg Notes: svn path=/stable/11/; revision=330897
* MFC r326276:Eitan Adler2018-03-051-1/+3
| | | | | | | | | | | | | | | | | | | various: general adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended. Notes: svn path=/stable/11/; revision=330449
* MFC 326184: Decode kevent structures logged via ktrace(2) in kdump.John Baldwin2018-01-262-76/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add a new KTR_STRUCT_ARRAY ktrace record type which dumps an array of structures. The structure name in the record payload is preceded by a size_t containing the size of the individual structures. Use this to replace the previous code that dumped the kevent arrays dumped for kevent(). kdump is now able to decode the kevent structures rather than dumping their contents via a hexdump. One change from before is that the 'changes' and 'events' arrays are not marked with separate 'read' and 'write' annotations in kdump output. Instead, the first array is the 'changes' array, and the second array (only present if kevent doesn't fail with an error) is the 'events' array. For kevent(), empty arrays are denoted by an entry with an array containing zero entries rather than no record. - Move kevent decoding tables from truss to libsysdecode. This adds three new functions to decode members of struct kevent: sysdecode_kevent_filter, sysdecode_kevent_flags, and sysdecode_kevent_fflags. kdump uses these helper functions to pretty-print kevent fields. - Move structure definitions for freebsd11 and freebsd32 kevent structures to <sys/event.h> so that they can be shared with userland. The 32-bit structures are only exposed if _WANT_KEVENT32 is defined. The freebsd11 structures are only exposed if _WANT_FREEBSD11_KEVENT is defined. The 32-bit freebsd11 structure requires both. - Decode freebsd11 kevent structures in truss for the compat11.kevent() system call. - Log 32-bit kevent structures via ktrace for 32-bit compat kevent() system calls. - While here, constify the 'void *data' argument to ktrstruct(). Note that this version of the change for 11.x does not include freebsd11 kevent structures or _WANT_FREEBSD11_KEVENT. It also does not include the change to decode the compat11.kevent system call in truss. Notes: svn path=/stable/11/; revision=328454
* MFC 319493,319509,319520,319595,319677,319679-319681,319688,319689,John Baldwin2017-11-214-47/+314
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 319761-319768,320010,322899,322959,323020,323021,323151: Sync libsysdecode, kdump, and truss with head (aside from changes such as ino64 that are not applicable to 11). 319493: Decode the arguments passed to __cap_rights_get() and cap_rights_limit(). 319509: Decode the argument passed to cap_getmode(). The returned integer value is output. 319520: Decode the 'who' argument passed to getrusage(). Add a new sysdecode_getrusage_who() which decodes the RUSAGE_* constant passed as the first argument to getrusage(). Use this function in both kdump and truss to decode the first argument to getrusage(). 319595: Decode arguments to dup, dup2, getdirentries, pread, and pwrite. - dup and dup2 print fd arguments in decimal. - pread and pwrite are similar to read and write with the addition of the file offset. - getdirentries displays the output entries as a string for now and also prints the value returned in *basep. Eventually the buffer for getdirentries should perhaps be decoded as an array of dirent structures. 319677: Decode arguments to ACL related system calls. This only decodes the raw arguments but not the contents of the struct acl objects. 319679: Decode arguments passed to extended attribute related system calls. The cmd argument passed to extattrctl() is not decoded as a string constant but is just printed in hex. The value is filesystem-specific but in practice is only used with UFS1 filesystems. 319680: Decode arguments to minherit(). 319681: Decode arguments to mlock(), mlockall(), and munlock(). 319688: Decode flags passed to mount(), nmount(), and unmount(). 319689: Decode arguments passed to msync(). 319761: Fix decoding of setpriority() arguments. The PRIO_* 'which' value is stored in the first argument to setpriority(2), not the last. While here, decode the arguments to getpriority(2). 319762: Decode arguments to getpriority() and setpriority(). 319763: Decode the arguments to ptrace(). This does not decode structures returned by ptrace(). 319764: Decode the arguments to quotactl(). 319765: Improve decoding of RB_AUTOBOOT in the 'howto' argument to reboot(). The reboot() system call accepts a mode (RB_AUTOBOOT, RB_HALT, RB_POWEROFF, or RB_REROOT) as well as zero or more optional flags in 'howto'. However, RB_AUTOBOOT was only displayed if 'howto' was exactly 0. Combinations like 'RB_AUTOBOOT | RB_DUMP' were decoded as 'RB_DUMP'. Instead, imply that RB_AUTOBOOT was specified if none of the other "mode" flags were specified. 319766: Decode the 'howto' argument to reboot(). 319767: Decode arguments to rtprio_thread() (same as rtprio()). 319768: Decode arguments to rtprio() and rtprio_thread(). 320010: Decode arguments to sched_* family of system calls. This includes decoding both scheduler policy constants and the sched_param structure for sched_get_priority_max(), sched_get_priority_min(), sched_getparam(), sched_getscheduler(), sched_rr_get_interval(), sched_setparam(), and sched_setscheduler(). 322899: Decode arguments passed to thr_set_name(). 322959: Decode extra signal information for caught signals. Decode fields from the siginfo_t stored in the PT_LWPINFO structure when a signal is caught by a traced process. This includes the signal code (si_code) as well as additional members such as si_addr, si_pid, etc. 323020: Trim stale prototype for ioctlname(). 323021: Decode signal information returned by system calls. Specifically, decode the siginfo structure returned by sigtimedwait(), sigwaitinfo(), and wait6(). While here, also decode the signal number returned in the second argument to sigwait(). 323151: Decode pathconf() names, *at() flags, and sysarch() numbers in libsysdecode. Move tables that were previously in truss over to libsysdecode. truss output is unchanged, but kdump has been updated to decode these fields. In addition, sysdecode_sysarch_number() should support all platforms whereas the old table in truss only supported x86. PR: 214885, 215448 Notes: svn path=/stable/11/; revision=326044
* MFC r324727 and r325555:Ed Schouten2017-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Import the latest CloudABI definitions, version 0.16. The most important change in this release is the removal of the poll_fd() system call; CloudABI's equivalent of kevent(). Though I think that kqueue is a lot saner than many of its alternatives, our experience is that emulating this system call on other systems accurately isn't easy. It has become a complex API, even though I'm not convinced this complexity is needed. This is why we've decided to take a different approach, by looking one layer up. We're currently adding an event loop to CloudABI's C library that is API compatible with libuv (except when incompatible with Capsicum). Initially, this event loop will be built on top of plain inefficient poll() calls. Only after this is finished, we'll work our way backwards and design a new set of system calls to optimize it. Interesting challenges will include integrating asynchronous I/O into such a system call API. libuv currently doesn't aio(4) on Linux/BSD, due to it being unreliable and having undesired semantics. Upgrade to CloudABI v0.17. Compared to the previous version, v0.16, there are a couple of minor changes: - CLOUDABI_AT_PID: Process identifiers for CloudABI processes. Initially, BSD process identifiers weren't exposed inside the runtime, due to them being pretty much useless inside of a cluster computing environment. When jobs are scheduled across systems, the BSD process number doesn't act as an identifier. Even on individual systems they may recycle relatively quickly. With this change, the kernel will now generate a UUIDv4 when executing a process. These UUIDs can be obtained within the process using program_getpid(). Right now, FreeBSD will not attempt to store this value. This should of course happen at some point in time, so that it may be printed by administration tools. - Removal of some unused structure members for polling. With the polling framework being simplified/redesigned, it turns out some of the structure fields were not used by the C library. We can remove these to keep things nice and tidy. Notes: svn path=/stable/11/; revision=325858
* MFC r324594: truss: mention 'H' in usageEd Maste2017-10-201-2/+2
| | | | | | | | | | | r295930 (MFC of r295930) introduced the 'H' option to display thread IDs, but did not add the option to usage(). PR: 222837 Submitted by: Oliver Kiddle <okiddle@yahoo.co.uk> Notes: svn path=/stable/11/; revision=324777
* MFC r321514, r322885, r323015, r323177Ed Schouten2017-10-041-71/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This brings the CloudABI code more or less in sync with HEAD. r321514: Upgrade to the latest sources generated from the CloudABI specification. The CloudABI specification has had some minor changes over the last half year. No substantial features have been added, but some features that are deemed unnecessary in retrospect have been removed: - mlock()/munlock(): These calls tend to be used for two different purposes: real-time support and handling of sensitive (cryptographic) material that shouldn't end up in swap. The former use case is out of scope for CloudABI. The latter may also be handled by encrypting swap. Removing this has the advantage that we no longer need to worry about having resource limits put in place. - SOCK_SEQPACKET: Support for SOCK_SEQPACKET is rather inconsistent across various operating systems. Some operating systems supported by CloudABI (e.g., macOS) don't support it at all. Considering that they are rarely used, remove support for the time being. - getsockname(), getpeername(), etc.: A shortcoming of the sockets API is that it doesn't allow you to create socket(pair)s, having fake socket addresses associated with them. This makes it harder to test applications or transparently forward (proxy) connections to them. With CloudABI, we're slowly moving networking connectivity into a separate daemon called Flower. In addition to passing around socket file descriptors, this daemon provides address information in the form of arbitrary string labels. There is thus no longer any need for requesting socket address information from the kernel itself. This change also updates consumers of the generated code accordingly. Even though system calls end up getting renumbered, this won't cause any problems in practice. CloudABI programs always call into the kernel through a kernel-supplied vDSO that has the numbers updated as well. Obtained from: https://github.com/NuxiNL/cloudabi r322885: Sync CloudABI compatibility against the latest upstream version (v0.13). With Flower (CloudABI's network connection daemon) becoming more complete, there is no longer any need for creating any unconnected sockets. Socket pairs in combination with file descriptor passing is all that is necessary, as that is what is used by Flower to pass network connections from the public internet to listening processes. Remove all of the kernel bits that were used to implement socket(), listen(), bindat() and connectat(). In principle, accept() and SO_ACCEPTCONN may also be removed, but there are still some consumers left. Obtained from: https://github.com/NuxiNL/cloudabi r323015: Complete the CloudABI networking refactoring. Now that all of the packaged software has been adjusted to either use Flower (https://github.com/NuxiNL/flower) for making incoming/outgoing network connections or can have connections injected, there is no longer need to keep accept() around. It is now a lot easier to write networked services that are address family independent, dual-stack, testable, etc. Remove all of the bits related to accept(), but also to getsockopt(SO_ACCEPTCONN). r323177: Merge pipes and socket pairs. Now that CloudABI's sockets API has been changed to be addressless and only connected socket instances are used (e.g., socket pairs), they have become fairly similar to pipes. The only differences on CloudABI is that socket pairs additionally support shutdown(), send() and recv(). To simplify the ABI, we've therefore decided to remove pipes as a separate file descriptor type and just let pipe() return a socket pair of type SOCK_STREAM. S_ISFIFO() and S_ISSOCK() are now defined identically. Notes: svn path=/stable/11/; revision=324250
* MFC r321329:Edward Tomasz Napierala2017-08-051-1/+2
| | | | | | | Make truss(1) cross-reference dtrace(1) and bump .Dd. Notes: svn path=/stable/11/; revision=322091
* MFC r321328:Edward Tomasz Napierala2017-08-051-3/+5
| | | | | | | Use more usual formatting for the EXAMPLES section of truss(1). Notes: svn path=/stable/11/; revision=322090
* MFC r317730:Michael Tuexen2017-06-012-9/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for listen() call. MFC r317731: Add Socklent for handling args of type socklen_t. MFC r317732: Decode the third argument of socket(). MFC r317736: Add support for [gs]etsockopt(). MFC r317737: Decode the fourth argument of sendto and recvfrom call. MFC r317739: Add support for sendmsg() and recvmsg(). MFC r317747: Add support for socket option names related to the IPPROTO_SCTP level. MFC r317748: Add support for socket option names related to the IPPROTO_IPV6 level. MFC r317750: Add support for sctp_generic_sendmsg() and sctp_generic_recvmsg(). MFC r317789: Add support for socket option names related to the level IPPROTO_UDPLITE. MFC r318879: Improve the decoding of the third argument of the socket() call. Decoding of the third argument depends on the first one. For doing this, add a corresponding function to libsysdecode. Thanks to jhb@ for suggesting this. Notes: svn path=/stable/11/; revision=319417
* MFC r315170:Enji Cooper2017-05-301-2/+2
| | | | | | | | | | | | | | r315170 (by imp): Adopt SRCTOP in usr.bin Prefer ${SRCTOP}/foo over ${.CURDIR}/../../foo and ${SRCTOP}/usr.bin/foo over ${.CURDIR}/../foo for paths in Makefiles. Silence on: arch@ (twice) Notes: svn path=/stable/11/; revision=319186
* MFC 315335,315336,315496,315497,315500,315502,315504,315509,315523,315524,John Baldwin2017-05-262-44/+157
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 315525: Decode more system call arguments in truss. 315335: Remove duplicate argument from linux_stat64() decoding. 315336: Automate the handling of QUAD_ALIGN and QUAD_SLOTS. Previously, the offset in a system call description specified the array index of the start of a system call argument. For most system call arguments this was the same as the index of the argument in the function signature. 64-bit arguments (off_t and id_t values) passed on 32-bit platforms use two slots in the array however. This was handled by adding (QUAD_SLOTS - 1) to the slot indicies of any subsequent arguments after a 64-bit argument (though written as ("{ Quad, 1 }, { Int, 1 + QUAD_SLOTS }" rather than "{ Quad, 1 }, { Int, 2 + QUAD_SLOTS - 1 }"). If a system call contained multiple 64-bit arguments (such as posix_fadvise()), then additional arguments would need to use 'QUAD_SLOTS * 2' but remember to subtract 2 from the initial number, etc. In addition, 32-bit powerpc requires 64-bit arguments to be 64-bit aligned, so if the effective index in the array of a 64-bit argument is odd, it needs QUAD_ALIGN added to the current and any subsequent slots. However, if the effective index in the array of a 64-bit argument was even, QUAD_ALIGN was omitted. This approach was messy and error prone. This commit replaces it with automated pre-processing of the system call table to do fixups for 64-bit argument offsets. The offset in a system call description now indicates the index of an argument in the associated function call's signature. A fixup function is run against each decoded system call description during startup on 32-bit platforms. The fixup function maintains an 'offset' value which holds an offset to be added to each remaining system call argument's index. Initially offset is 0. When a 64-bit system call argument is encountered, the offset is first aligned to a 64-bit boundary (only on powerpc) and then incremented to account for the second argument slot used by the argument. This modified 'offset' is then applied to any remaining arguments. This approach does require a few things that were not previously required: 1) Each system call description must now list arguments in ascending order (existing ones all do) without using duplicate slots in the register array. A new assert() should catch any future descriptions which violate this rule. 2) A system call description is still permitted to omit arguments (though none currently do), but if the call accepts 64-bit arguments those cannot be omitted or incorrect results will be displated on 32-bit systems. 315496: Decode the arguments passed to cap_fcntls_get() and cap_fcntls_limit(). 315497: Decode arguments passed to posix_fadvise(). 315500: Decode file flags passed to *chflags*(). While here, decode arguments passed to fchflags() and chflagsat(). 315502: Decode flock() operation. 315504: Decode arguments passed to getfsstat(). Note that this does not yet decode the statfs structures returned by getfsstat(). 315509: Decode arguments passed to kldsym() and kldunloadf(). This does not currently decode the kld_sym_lookup structure passed to kldsym(). 315523: Add a Sizet type for 'size_t' values and use it instead of Int. Various size_t arguments were previously decoded as Int values instead which would have truncated values above 2^31 on 64-bit systems. 315524: Decode arguments to madvise(). 315525: Improve decoding of last arguments to ioctl() and sendto(). Decode the last argument to ioctl() as a pointer rather than an int. Eventually this could use 'int' for the _IOWINT() case and pointers for all others. The last argument to sendto() is a socklen_t value, not a pointer. Notes: svn path=/stable/11/; revision=318961
* MFC 309589: Rework syscall structure lookups.John Baldwin2017-01-1319-45/+140
| | | | | | | | | | | | | | | | | Avoid always using an O(n^2) loop over known syscall structures with strcmp() on each system call. Instead, use a per-ABI cache indexed by the system call number. The first 1024 system calls (which should cover all of the normal system calls in currently-supported ABIs) use a flat array indexed by the system call number to find system call structure. For other system calls, a linked list of structures storing an integer to structure mapping is stored in the ABI. The linked list isn't very smart, but it should only be used by buggy applications invoking unknown system calls. This also fixes handling of unknown system calls which currently trigger a NULL pointer dereference. Notes: svn path=/stable/11/; revision=312084
* MFC 303946:John Baldwin2017-01-121-21/+0
| | | | | | | Remove files unused after pulling system call names from libsysdecode. Notes: svn path=/stable/11/; revision=312000
* MFC 307538,307948,308602,308603,311151: Move kdump's mksubr into libsysdecode.John Baldwin2017-01-1221-226/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 307538: Move mksubr from kdump into libsysdecode. Restructure this script so that it generates a header of tables instead of a source file. The tables are included in a flags.c source file which provides functions to decode various system call arguments. For functions that decode an enumeration, the function returns a pointer to a string for known values and NULL for unknown values. For functions that do more complex decoding (typically of a bitmask), the function accepts a pointer to a FILE object (open_memstream() can be used as a string builder) to which decoded values are written. If the function operates on a bitmask, the function returns true if any bits were decoded or false if the entire value was valid. Additionally, the third argument accepts a pointer to a value to which any undecoded bits are stored. This pointer can be NULL if the caller doesn't care about remaining bits. Convert kdump over to using decoder functions from libsysdecode instead of mksubr. truss also uses decoders from libsysdecode instead of private lookup tables, though lookup tables for objects not decoded by kdump remain in truss for now. Eventually most of these tables should move into libsysdecode as the automated table generation approach from mksubr is less stale than the static tables in truss. Some changes have been made to truss and kdump output: - The flags passed to open() are now properly decoded in that one of O_RDONLY, O_RDWR, O_WRONLY, or O_EXEC is always included in a decoded mask. - Optional arguments to open(), openat(), and fcntl() are only printed in kdump if they exist (e.g. the mode is only printed for open() if O_CREAT is set in the flags). - Print argument to F_GETLK/SETLK/SETLKW in kdump as a pointer, not int. - Include all procctl() commands. - Correctly decode pipe2() flags in truss by not assuming full open()-like flags with O_RDONLY, etc. - Decode file flags passed to *chflags() as file flags (UF_* and SF_*) rather than as a file mode. - Fix decoding of quotactl() commands by splitting out the two command components instead of assuming the raw command value matches the primary command component. In addition, truss and kdump now build without triggering any warnings. All of the sysdecode manpages now include the required headers in the synopsis. 307948: Use binary and (&) instead of logical to extract the mask of a capability. 308602: Generate and use a proper .depend file for tables.h. 308603: Move libsysdecode-specific hack out of buildworld. This should fix the lib32 build since it was not removing the generated ioctl.c. This file is generated by a find(1) call, so cannot use normal dependency tracking methods. 311151: Update libsysdecode for getfsstat() 'flags' argument changing to 'mode'. As a followup to r310638, update libsysdecode (and kdump) to decode the 'mode' argument to getfsstat(). sysdecode_getfsstat_flags() has been renamed to sysdecode_getfsstat_mode() and now treats the argument as an enumerated value rather than a mask of flags. Notes: svn path=/stable/11/; revision=311999
* MFC 307060: Fix printf format warning.John Baldwin2017-01-101-2/+2
| | | | Notes: svn path=/stable/11/; revision=311889
* MFC r303818, r303833, r303941, r304478, r304481, r304483, r304484, r304554,Ed Schouten2016-10-121-2/+0
| | | | | | | | | | | | | | | | | | | | | r304555, r304556, r304557, r304558, r304559, r304561, r304563, r304564, r304565, r304615, r304742, r304743, r304744, r304745, r304748, r304886, r304991, r305928, r305938, r305987, r306185: Bring CloudABI support back in sync with HEAD. - Add support for running 32-bit executables on amd64, armv6 and i386. - As these new architectures require the use of the vDSO, merge back vDSO support for 64-bit executables running on amd64 and arm64 as well. This has the advantage that support for vDSO-less execution can be phased out when 11.0 becomes unsupported, as opposed to 11.x. This change has been tested by running the cloudlibc unit tests on all supported architectures, which seems to work fine. Notes: svn path=/stable/11/; revision=307144
* MFC r303934,r303937,r303942:Bryan Drewery2016-08-151-0/+2
| | | | | | | | | | | | r303934: Support rmdir(2). r303937: Use proper argument length for rmdir(2) for r303934. r303942: Fix sorting in r303934. Notes: svn path=/stable/11/; revision=304143
* MFC: r303685Baptiste Daroussin2016-08-141-1/+3
| | | | | | | | | | | | | | | truss: fix uninitialized trussinfo->curthread in add_threads()/enter_syscall trussinfo->curthread must be initialized before calling enter_syscall(), it is used by t->proc->abi->fetch_args(). Without that truss is segfaulting and the attached program also crash. Submitted by: Nikita Kozlov (nikita@gandi.net) Reviewed by: jhb Differential Revision: https://reviews.freebsd.org/D7399 Notes: svn path=/stable/11/; revision=304104
* Add support for truss'ing Linux/x86_64 binaries under amd64.John Baldwin2016-06-092-0/+105
| | | | | | | Prodding by: xmj Notes: svn path=/head/; revision=301715
* Cleanup unnecessary semicolons from utilities we all love.Pedro F. Giffuni2016-04-151-1/+1
| | | | Notes: svn path=/head/; revision=298089
* Replace the CloudABI system call table by a machine generated version.Ed Schouten2016-03-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The type definitions and constants that were used by COMPAT_CLOUDABI64 are a literal copy of some headers stored inside of CloudABI's C library, cloudlibc. What is annoying is that we can't make use of cloudlibc's system call list, as the format is completely different and doesn't provide enough information. It had to be synced in manually. We recently decided to solve this (and some other problems) by moving the ABI definitions into a separate file: https://github.com/NuxiNL/cloudabi/blob/master/cloudabi.txt This file is processed by a pile of Python scripts to generate the header files like before, documentation (markdown), but in our case more importantly: a FreeBSD system call table. This change discards the old files in sys/contrib/cloudabi and replaces them by the latest copies, which requires some minor changes here and there. Because cloudabi.txt also enforces consistent names of the system call arguments, we have to patch up a small number of system call implementations to use the new argument names. The new header files can also be included directly in FreeBSD kernel space without needing any includes/defines, so we can now remove cloudabi_syscalldefs.h and cloudabi64_syscalldefs.h. Patch up the sources to include the definitions directly from sys/contrib/cloudabi instead. Notes: svn path=/head/; revision=297247
* Use ptrace(2) LWP events to track threads reliably in truss.John Baldwin2016-03-093-54/+163
| | | | | | | | | | | | | | | | | - truss can now log the system call invoked by a thread during a voluntary process exit. No return value is logged, but the value passed to exit() is included in the trace output. Arguments passed to thread exit system calls such as thr_exit() are not logged as voluntary thread exits cannot be distinguished from involuntary thread exits during a system call. - New events are now reported for thread births and exits similar to the recently added events for new child processes when following forks. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D5561 Notes: svn path=/head/; revision=296571
* Add handling for non-native error values to libsysdecode.John Baldwin2016-02-238-215/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add two new functions, sysdecode_abi_to_freebsd_errno() and sysdecode_freebsd_to_abi_errno(), which convert errno values between the native FreeBSD ABI and other supported ABIs. Note that the mappings are not necessarily perfect meaning in some cases multiple errors in one ABI might map to a single error in another ABI. In that case, the reverse mapping will return one of the errors that maps, but which error is non-deterministic. Change truss to always report the raw error value to the user but use libsysdecode to map it to a native errno value that can be used with strerror() to generate a description. Previously truss reported the "converted" error value. Now the user will always see the exact error value that the application sees. Change kdump to report the truly raw error value to the user. Previously kdump would report the absolute value of the raw error value (so for Linux binaries it didn't output the FreeBSD error value, but the positive value of the Linux error). Now it reports the real (i.e. negative) error value for Linux binaries. Also, use libsysdecode to convert the native FreeBSD error reported in the ktrace record to the raw error used by the ABI. This means that the Linux ABI can now be handled directly in ktrsysret() and removes the need for linux_ktrsysret(). Reviewed by: bdrewery, kib Helpful notes: wblock (manpage) Differential Revision: https://reviews.freebsd.org/D5314 Notes: svn path=/head/; revision=295931
* Add support for displaying thread IDs to truss(1).John Baldwin2016-02-236-72/+60
| | | | | | | | | | | | | | | | | | - Consolidate duplicate code for printing the metadata at the start of each line into a shared function. - Add an -H option which will log the thread ID of the relevant thread for each event. While here, remove some extraneous calls to clock_gettime() in print_syscall() and print_syscall_ret(). The caller of print_syscall_ret() always updates the current thread's "after" time before it is called. Reviewed by: kib MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D5363 Notes: svn path=/head/; revision=295930
* Remove an unused variable that snuck into the previous revision.John Baldwin2016-02-161-1/+0
| | | | Notes: svn path=/head/; revision=295678
* Fetch the current thread and it's syscall state from the trussinfo objectJohn Baldwin2016-02-163-24/+27
| | | | | | | | | instead of passing some of that state as arguments to print_syscall() and print_syscallret(). This just makes the calls of these functions shorter and easier to read. Notes: svn path=/head/; revision=295677
* DIRDEPS_BUILD: Update dependencies.Bryan Drewery2016-02-161-8/+0
| | | | | | | Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=295650
* Correct the ABI name for Linux/i386 binaries under FreeBSD/i386.John Baldwin2016-02-151-1/+1
| | | | | | | | | This allows truss to work for these binaries again after r288424. MFC after: 3 days Notes: svn path=/head/; revision=295637
* Sign extend the error value for failing Linux/i386 system calls. ThisJohn Baldwin2016-02-151-0/+2
| | | | | | | | restores the mapping of Linux errors to native FreeBSD errno values after the refactoring in r288424. Notes: svn path=/head/; revision=295636
* Add a SYSDECODE_ABI_ prefix to the ABI enums to avoid potential collisions.John Baldwin2016-01-3014-16/+16
| | | | | | | | | Suggested by: jmallett Reviewed by: bdrewery, jmallett Differential Revision: https://reviews.freebsd.org/D5123 Notes: svn path=/head/; revision=295056
* Add support to libsysdecode for decoding system call names.John Baldwin2016-01-2618-84/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | A new sysdecode_syscallname() function accepts a system call code and returns a string of the corresponding name (or NULL if the code is unknown). To support different process ABIs, the new function accepts a value from a new sysdecode_abi enum as its first argument to select the ABI in use. Current ABIs supported include FREEBSD (native binaries), FREEBSD32, LINUX, LINUX32, and CLOUDABI64. Note that not all ABIs are supported by all platforms. In general, a given ABI is only supported if a platform can execute binaries for that ABI. To simplify the implementation, libsysdecode's build reuses the existing pre-generated files from the kernel source tree rather than duplicating new copies of said files during the build. kdump(1) and truss(1) now use these functions to map system call identifiers to names. For kdump(1), a new 'syscallname()' function consolidates duplicated code from ktrsyscall() and ktrsyscallret(). The Linux ABI no longer requires custom handling for ktrsyscall() and linux_ktrsyscall() has been removed as a result. Reviewed by: bdrewery Differential Revision: https://reviews.freebsd.org/D4823 Notes: svn path=/head/; revision=294849
* Update dependencies after r292622 moved the ioctl script.Bryan Drewery2016-01-071-3/+0
| | | | | | | Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=293289
* Move the mkioctls script to libsysdecode and use it to generate aJohn Baldwin2015-12-222-7/+2
| | | | | | | | | | | | | | sysdecode_ioctlname() function. This function matches the behavior of the truss variant in that it returns a pointer to a string description for known ioctls. The caller is responsible for displaying unknown ioctl requests. For kdump this meant moving the logic to handle unknown ioctl requests out of the generated function and into an ioctlname() function in kdump.c instead. Differential Revision: https://reviews.freebsd.org/D4610 Notes: svn path=/head/; revision=292622
* Start on a new library (libsysdecode) that provides routines for decodingJohn Baldwin2015-12-153-6/+4
| | | | | | | | | | | | | | | | | | | | system call information such as system call arguments. Initially this will consist of pulling duplicated code out of truss and kdump though it may prove useful for other utilities in the future. This commit moves the shared utrace(2) record parser out of kdump into the library and updates kdump and truss to use it. One difference from the previous version is that the library version treats unknown events that start with the "RTLD" signature as unknown events. This simplifies the interface and allows the consumer to decide how to handle all non-recognized events. Instead, this function only generates a string description for known malloc() and RTLD records. Reviewed by: bdrewery Differential Revision: https://reviews.freebsd.org/D4537 Notes: svn path=/head/; revision=292236
* Make truss work for CloudABI processes on aarch64.Ed Schouten2015-10-305-85/+247
| | | | | | | | | | | | | This change copies over amd64-cloudabi64.c to aarch64-cloudabi.c and adjusts it to fetch the proper registers on aarch64. To reduce the amount of shared code, the errno conversion function is moved into a separate source file. Reviewed by: jhb, andrew Differential Revision: https://reviews.freebsd.org/D4023 Notes: svn path=/head/; revision=290186
* Simplify syscall generation and ABI source file handling for the build.Bryan Drewery2015-10-1320-202/+233
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is to make the Makefile more easily extendable for new ABIs. This also makes several other subtle changes: - The build now is given a list of ABIs to use based on the MACHINE_ARCH or MACHINE_CPUARCH. These ABIs have a related path in sys/ that is used to generate their syscalls. For each ABI to build check for a ABI.c, MACHINE_ARCH-ABI.c, or a MACHINE_CPUARCH-ABI.c. This matches the old behavior needed for archs such as powerpc* and mips*. - The ABI source file selection allows for simpler assignment of common ABIs such as "fbsd32" from sys/compat/freebsd32, or cloudabi64. - Expand 'fbsd' to 'freebsd' everywhere for consistency. - Split out the powerpc-fbsd.c file into a powerpc64-freebsd32.c to be more like the amd64-freebsd32.c file and to more easily allow the auto-generation of ABI handling to work. - Rename 'syscalls.h' to 'fbsd_syscalls.h' to lessen the ambiguity and avoid confusion with syscall.h (such as in r288997). - For non-native syscall header files, they are now renamed to be ABI_syscalls.h, where ABI is what ABI the Makefile is building. - Remove all of the makesyscalls config files. The "native" one being name i386.conf was a long outstanding bug. They were all the same except for the data they generated, so now it is just auto-generated as a build artifact. - The syscalls array is now fixed to be static in the syscalls header to remove the compiler warning about non-extern. This was worked around in the aarch64-fbsd.c file but not the others. - All syscall table names are now just 'syscallnames' since they don't need to be different as they are all static in their own ABI files. The alternative is to name them ABI_syscallnames which does not seem necessary. Reviewed by: ed, jhb MFC after: 3 weeks Differential Revision: https://reviews.freebsd.org/D3851 Notes: svn path=/head/; revision=289239
* Let -c imply -S (hide signal output).Bryan Drewery2015-10-092-3/+3
| | | | | | | | | | | | 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. Discussed with: jhb Relnotes: yes Notes: svn path=/head/; revision=289080
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