Commit Graph

375 Commits

Author SHA1 Message Date
Bryan Drewery
9d8a81b4e4 DIRDEPS_BUILD: Update dependencies.
Sponsored by:	EMC / Isilon Storage Division
2016-02-16 02:14:30 +00:00
John Baldwin
623277619d Correct the ABI name for Linux/i386 binaries under FreeBSD/i386.
This allows truss to work for these binaries again after r288424.

MFC after:	3 days
2016-02-15 20:27:16 +00:00
John Baldwin
142482cda6 Sign extend the error value for failing Linux/i386 system calls. This
restores the mapping of Linux errors to native FreeBSD errno values after
the refactoring in r288424.
2016-02-15 20:26:40 +00:00
John Baldwin
5842bd683f Add a SYSDECODE_ABI_ prefix to the ABI enums to avoid potential collisions.
Suggested by:	jmallett
Reviewed by:	bdrewery, jmallett
Differential Revision:	https://reviews.freebsd.org/D5123
2016-01-30 01:00:54 +00:00
John Baldwin
a5f14abfd2 Add support to libsysdecode for decoding system call names.
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
2016-01-26 19:07:09 +00:00
Bryan Drewery
b8e3d9cc79 Update dependencies after r292622 moved the ioctl script.
Sponsored by:	EMC / Isilon Storage Division
2016-01-07 00:32:40 +00:00
John Baldwin
265e58989d Move the mkioctls script to libsysdecode and use it to generate a
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
2015-12-22 20:33:49 +00:00
John Baldwin
d6fb489498 Start on a new library (libsysdecode) that provides routines for decoding
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
2015-12-15 00:05:07 +00:00
Ed Schouten
b0e787276b Make truss work for CloudABI processes on aarch64.
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
2015-10-30 08:11:37 +00:00
Bryan Drewery
8c444cbc45 Simplify syscall generation and ABI source file handling for the build.
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
2015-10-13 18:23:51 +00:00
Bryan Drewery
7096af2e9e 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.

Discussed with:	jhb
Relnotes:	yes
2015-10-09 20:47:29 +00:00
Ed Schouten
808d980506 Properly format pointer size independent CloudABI system calls.
CloudABI has approximately 50 system calls that do not depend on the
pointer size of the system. As the ABI is pretty compact, it takes
little effort to each truss(8) the formatting rules for these system
calls. Start off by formatting pointer size independent system calls.

Changes:

- Make it possible to include the CloudABI system call definitions in
  FreeBSD userspace builds. Add ${root}/sys to the truss(8) Makefile so
  we can pull in <compat/cloudabi/cloudabi_syscalldefs.h>.
- Refactoring: patch up amd64-cloudabi64.c to use the CLOUDABI_*
  constants instead of rolling our own table.
- Add table entries for all of the system calls.
- Add new generic formatting types (UInt, IntArray) that we'll be using
  to format unsigned integers and arrays of integers.
- Add CloudABI specific formatting types.

Approved by:	jhb
Differential Revision:	https://reviews.freebsd.org/D3836
2015-10-08 05:27:45 +00:00
Bryan Drewery
04a97800bf Correct a comment. 2015-10-08 00:31:11 +00:00
Simon J. Gerraty
bd47c7ec11 Updated depends 2015-10-07 00:43:05 +00:00
Bryan Drewery
195aef9962 truss: Add support for utrace(2).
This uses the kdump(1) utrace support code directly until a common library
is created.

This allows malloc(3) tracing with MALLOC_CONF=utrace:true and rtld tracing
with LD_UTRACE=1.  Unknown utrace(2) data is just printed as hex.

PR:		43819 [inspired by]
Reviewed by:	jhb
MFC after:	2 weeks
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D3819
2015-10-06 21:58:38 +00:00
John Baldwin
f44fc79d0b Group the decoded system calls by ABI and sort the calls within each ABI.
Reviewed by:	bdrewery
Glanced at by:	kib
Differential Revision:	https://reviews.freebsd.org/D3823
2015-10-06 19:31:07 +00:00
Bryan Drewery
94746562ff Fix crash if a process sends itself a SIGTRAP. Just forward it as expected.
MFC after:	2 weeks [needs rewrite]
Relnotes:	yes
2015-10-05 21:39:07 +00:00
Bryan Drewery
47ff1ba642 Add decoding for modfind(2) 2015-10-05 18:11:30 +00:00
Bryan Drewery
6c61b0f324 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.

Reviewed by:	jhb
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D3792
2015-10-05 18:08:35 +00:00
Bryan Drewery
0a71c082d2 Style fix. 2015-10-03 19:08:36 +00:00
Bryan Drewery
a776866b44 Add decoding for struct statfs.
Reviewed by:	jhb (briefly)
2015-10-03 18:57:15 +00:00
Konstantin Belousov
5821213b4c Add aarch64 support to truss(1).
Reviewed by:	jhb
Discussed with:	emaste (license)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3750
2015-10-02 13:30:56 +00:00
Ed Schouten
2f9ebcc1a5 Make truss print CloudABI system call names.
This change adds the bits that are necessary to fetch system call
arguments and return values from trapframes for CloudABI. This allows us
to properly print system calls with the right name. We need to make sure
that we properly convert error numbers when system calls fail.

We still need to improve truss to pretty-print some of the system calls
that have flags.
2015-10-02 11:17:15 +00:00
John Baldwin
66917ca9d2 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.
2015-10-01 18:18:58 +00:00
John Baldwin
72df19e7ab 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.
2015-10-01 17:50:41 +00:00
John Baldwin
df438f423d - 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.
2015-10-01 17:28:07 +00:00
John Baldwin
2b75c8ad3d 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.

Reviewed by:	kib (earlier version)
Tested on:	amd64 (FreeBSD/amd64 & i386), i386, arm (earlier version)
Tested on:	powerpc64 (FreeBSD/powerpc64 & powerpc)
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D3575
2015-09-30 19:13:32 +00:00
John Baldwin
9e07e493b3 Trim trailing whitespace. 2015-09-30 00:08:24 +00:00
John Baldwin
a061e3c50f Decode recently added procctl(2) operations. 2015-09-29 23:54:26 +00:00
John Baldwin
68055893c1 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.
2015-08-20 14:51:11 +00:00
John Baldwin
890843c15b 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.
2015-08-20 14:33:30 +00:00
John Baldwin
b38fbc2e54 ino_t is unsigned, so use uintmax_t instead of intmax_t when printing it.
Submitted by:	bde (sort of)
2015-08-19 20:10:58 +00:00
John Baldwin
a143677385 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.

Inspired by:	mail from bde
2015-08-19 20:09:14 +00:00
John Baldwin
4e3da534fc Various style and whitespace fixes. 2015-08-19 20:02:03 +00:00
John Baldwin
9346bf6f4a Use nitems(). 2015-08-19 19:59:42 +00:00
John Baldwin
c915ff0349 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.
2015-08-19 01:44:56 +00:00
John Baldwin
f083f6894c 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.
2015-08-19 00:49:50 +00:00
John Baldwin
e462b12755 Use an xlat table and xlookup() instead of a home-rolled version for the
sigprocmask operation type.
2015-08-17 19:08:48 +00:00
John Baldwin
fb7eabb0bf 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.
2015-08-17 18:47:39 +00:00
John Baldwin
c9c2e2dc06 Decode the optional SOCK_NONBLOCK and SOCK_CLOEXEC flags passed in a
socket type.
2015-08-17 17:57:01 +00:00
John Baldwin
b289a8d78a - 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.
2015-08-17 17:52:28 +00:00
John Baldwin
1e2ec671fc 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.
2015-08-06 20:05:40 +00:00
John Baldwin
0a46af44bf Whitespace fixes to consistently use spaces before }'s and
wrap long lines.
2015-08-06 19:36:47 +00:00
John Baldwin
7d89732757 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.
2015-08-06 19:08:33 +00:00
John Baldwin
e82ce59c37 Decode the arguments to mkfifo() and fix an off-by-one error in the arguments
to mknod().
2015-08-06 18:32:32 +00:00
John Baldwin
19d637849e 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.
2015-08-06 18:28:15 +00:00
John Baldwin
d98d7ba0b4 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.
2015-08-06 01:49:18 +00:00
John Baldwin
abb3f965d1 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.
2015-08-05 18:14:01 +00:00
John Baldwin
7582c8ea08 Whitespace fix: remove some spurious spaces before commas. 2015-08-05 18:10:46 +00:00
Ed Maste
6df1985625 truss: follow pdfork()ed descendents with -f
PR:		201276
Reported by:	David Drysdale
Reviewed by:	oshogbo
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D2976
2015-07-24 16:57:13 +00:00
Simon J. Gerraty
2ef6d5a7b9 new depends 2015-06-16 23:37:19 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
728d82cdd2 Use INCLUDEDIR rather than hard coded /usr/include
Differential Revision:	D2748
Reviewed by:	brooks imp
2015-06-11 14:25:53 +00:00
Simon J. Gerraty
44d314f704 dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
Simon J. Gerraty
9268022b74 Merge from head@274682 2014-11-19 01:07:58 +00:00
John Baldwin
53e1ffbbce The current POSIX semaphore implementation stores the _has_waiters flag
in a separate word from the _count.  This does not permit both items to
be updated atomically in a portable manner.  As a result, sem_post()
must always perform a system call to safely clear _has_waiters.

This change removes the _has_waiters field and instead uses the high bit
of _count as the _has_waiters flag.  A new umtx object type (_usem2) and
two new umtx operations are added (SEM_WAIT2 and SEM_WAKE2) to implement
these semantics.  The older operations are still supported under the
COMPAT_FREEBSD9/10 options.  The POSIX semaphore API in libc has
been updated to use the new implementation.  Note that the new
implementation is not compatible with the previous implementation.
However, this only affects static binaries (which cannot be helped by
symbol versioning).  Binaries using a dynamic libc will continue to work
fine.  SEM_MAGIC has been bumped so that mismatched binaries will error
rather than corrupting a shared semaphore.  In addition, a padding field
has been added to sem_t so that it remains the same size.

Differential Revision:	https://reviews.freebsd.org/D961
Reported by:	adrian
Reviewed by:	kib, jilles (earlier version)
Sponsored by:	Norse
2014-10-24 20:02:44 +00:00
John Baldwin
5817298f31 Retire the unimplemented MAP_RENAME and MAP_NORESERVE flags to mmap(2).
Older binaries are still permitted to use these flags.

PR:		193961 (exp-run in ports)
Differential Revision:	https://reviews.freebsd.org/D848
Reviewed by:	kib
2014-10-18 12:28:51 +00:00
John Baldwin
fdb5bf37fa Decode the arguments passed to _umtx_op(). In particular, decode the
opcode.

MFC after:	1 week
Sponsored by:	Norse
2014-10-13 16:37:06 +00:00
Andrew Turner
b8fd1e31d9 Unify interrupts bit definition and usage. While here remove PSR_C_bit.
Submitted by:	Svatopluk Kraus <onwahe at gmail.com>,
		Michal Meloun <meloun at miracle.cz>
Differential Revision: https://reviews.freebsd.org/D754
2014-09-10 15:25:15 +00:00
Andrew Turner
adc9488df4 Stop accessing the saved stack pointer by looking past the end of the
array of registers.

Submitted by:	Michal Meloun <meloun at miracle.cz>
2014-09-10 13:07:01 +00:00
Simon J. Gerraty
ee7b0571c2 Merge head from 7/28 2014-08-19 06:50:54 +00:00
Marcel Moolenaar
e7d939bda2 Remove ia64.
This includes:
o   All directories named *ia64*
o   All files named *ia64*
o   All ia64-specific code guarded by __ia64__
o   All ia64-specific makefile logic
o   Mention of ia64 in comments and documentation

This excludes:
o   Everything under contrib/
o   Everything under crypto/
o   sys/xen/interface
o   sys/sys/elf_common.h

Discussed at: BSDcan
2014-07-07 00:27:09 +00:00
Simon J. Gerraty
fae50821ae Updated dependencies 2014-05-16 14:09:51 +00:00
Simon J. Gerraty
76b28ad6ab Updated dependencies 2014-05-10 05:16:28 +00:00
Simon J. Gerraty
3b8f084595 Merge head 2014-04-28 07:50:45 +00:00
Steven Hartland
1c99a22a29 Add Linux socket call decoding to truss
MFC after:	1 month
2014-04-24 14:12:35 +00:00
Attilio Rao
ce42e79310 Remove dead code from umtx support:
- Retire long time unused (basically always unused) sys__umtx_lock()
  and sys__umtx_unlock() syscalls
- struct umtx and their supporting definitions
- UMUTEX_ERROR_CHECK flag
- Retire UMTX_OP_LOCK/UMTX_OP_UNLOCK from _umtx_op() syscall

__FreeBSD_version is not bumped yet because it is expected that further
breakages to the umtx interface will follow up in the next days.
However there will be a final bump when necessary.

Sponsored by:	EMC / Isilon storage division
Reviewed by:	jhb
2014-03-18 21:32:03 +00:00
Simon J. Gerraty
3caf0790a8 Merge head@256284 2013-10-13 02:35:19 +00:00
John Baldwin
55648840de Extend the support for exempting processes from being killed when swap is
exhausted.
- Add a new protect(1) command that can be used to set or revoke protection
  from arbitrary processes.  Similar to ktrace it can apply a change to all
  existing descendants of a process as well as future descendants.
- Add a new procctl(2) system call that provides a generic interface for
  control operations on processes (as opposed to the debugger-specific
  operations provided by ptrace(2)).  procctl(2) uses a combination of
  idtype_t and an id to identify the set of processes on which to operate
  similar to wait6().
- Add a PROC_SPROTECT control operation to manage the protection status
  of a set of processes.  MADV_PROTECT still works for backwards
  compatability.
- Add a p_flag2 to struct proc (and a corresponding ki_flag2 to kinfo_proc)
  the first bit of which is used to track if P_PROTECT should be inherited
  by new child processes.

Reviewed by:	kib, jilles (earlier version)
Approved by:	re (delphij)
MFC after:	1 month
2013-09-19 18:53:42 +00:00
John Baldwin
34763d1c9d - Decode the idtype argument passed to wait6() in kdump and truss.
- Don't treat an options argument of 0 to wait4() as an error in
  kdump.
- Decode the wait options passed to wait4() and wait6() in truss
  and decode the returned rusage and exit status.

Approved by:	re (kib)
MFC after:	1 week
2013-09-12 18:08:25 +00:00
Simon J. Gerraty
d466a5b069 Merge head 2013-09-11 18:16:18 +00:00
John Baldwin
edb572a38c Add a mmap flag (MAP_32BIT) on 64-bit platforms to request that a mapping use
an address in the first 2GB of the process's address space.  This flag should
have the same semantics as the same flag on Linux.

To facilitate this, add a new parameter to vm_map_find() that specifies an
optional maximum virtual address.  While here, fix several callers of
vm_map_find() to use a VMFS_* constant for the findspace argument instead of
TRUE and FALSE.

Reviewed by:	alc
Approved by:	re (kib)
2013-09-09 18:11:59 +00:00
Simon J. Gerraty
d1d0158641 Merge from head 2013-09-05 20:18:59 +00:00
John Baldwin
bf59b2c504 Remove incorrect 'const' qualifier from pointers to dynamic string
buffers I added in the previous commit.

Pointy hat to:	jhb
MFC after:	1 month
2013-08-19 17:09:14 +00:00
John Baldwin
5aa60b6f21 Add new mmap(2) flags to permit applications to request specific virtual
address alignment of mappings.
- MAP_ALIGNED(n) requests a mapping aligned on a boundary of (1 << n).
  Requests for n >= number of bits in a pointer or less than the size of
  a page fail with EINVAL.  This matches the API provided by NetBSD.
- MAP_ALIGNED_SUPER is a special case of MAP_ALIGNED.  It can be used
  to optimize the chances of using large pages.  By default it will align
  the mapping on a large page boundary (the system is free to choose any
  large page size to align to that seems best for the mapping request).
  However, if the object being mapped is already using large pages, then
  it will align the virtual mapping to match the existing large pages in
  the object instead.
- Internally, VMFS_ALIGNED_SPACE is now renamed to VMFS_SUPER_SPACE, and
  VMFS_ALIGNED_SPACE(n) is repurposed for specifying a specific alignment.
  MAP_ALIGNED(n) maps to using VMFS_ALIGNED_SPACE(n), while
  MAP_ALIGNED_SUPER maps to VMFS_SUPER_SPACE.
- mmap() of a device object now uses VMFS_OPTIMAL_SPACE rather than
  explicitly using VMFS_SUPER_SPACE.  All device objects are forced to
  use a specific color on creation, so VMFS_OPTIMAL_SPACE is effectively
  equivalent.

Reviewed by:	alc
MFC after:	1 month
2013-08-16 21:13:55 +00:00
Mark Johnston
9e1db66eb4 Properly print arguments to vfork(2) and rfork(2).
PR:		180976
Submitted by:	Yuri <yuri@tsoft.com> (original patch)
MFC after:	1 week
2013-08-01 02:57:04 +00:00
Mateusz Guzik
8f99c21f94 truss: recognize O_DIRECTORY, O_EXEC, O_TTY_INIT and O_CLOEXEC
MFC after:	3 days
2013-06-30 13:14:46 +00:00
Simon J. Gerraty
3655322b21 updated dirdeps 2013-05-09 22:29:33 +00:00
Simon J. Gerraty
0bc8845fb9 We no longer need to fiddle with INCLUDEDIR 2013-05-09 22:28:16 +00:00
Simon J. Gerraty
69e6d7b75e sync from head 2013-04-12 20:48:55 +00:00
Simon J. Gerraty
7cf3a1c6b2 Updated dependencies 2013-03-11 17:21:52 +00:00
Olivier Houchard
57fb38ba93 Add arm bits to truss. 2013-03-07 23:44:35 +00:00
Xin LI
d9dcc46365 Revert r247300 for now. I'll post a new changeset for review. 2013-02-26 19:46:59 +00:00
Xin LI
285a4c7c59 Expose timespec and timeval macros when __BSD_VISIBLE is defined. This
allows userland application to use the following macros:

	timespecclear, timespecisset, timespeccmp, timespecadd,
	timespecsub;

	timevalclear, timevalisset, timevalcmp.

MFC after:	1 month
2013-02-26 02:13:02 +00:00
Simon J. Gerraty
f5f7c05209 Updated dependencies 2013-02-16 01:23:54 +00:00
David E. O'Brien
d9a447559b Sync with HEAD. 2013-02-08 16:10:16 +00:00
Mateusz Guzik
c2b51d4457 truss: use 'e' flag for fopen instead of fcntl(.., FD_CLOEXEC) 2013-01-27 03:17:35 +00:00
Mateusz Guzik
8ff44cbb80 truss: if file requested with -o flag could not be opened print the reason
MFC after:	3 days
2013-01-27 03:14:54 +00:00
Simon J. Gerraty
adf23bef06 If we are staging, we need to look in the right place, for
the headers we want to examine.
2012-11-08 21:27:46 +00:00
Simon J. Gerraty
7cd2dcf076 Updated/new Makefile.depend 2012-11-08 21:24:17 +00:00
Simon J. Gerraty
23090366f7 Sync from head 2012-11-04 02:52:03 +00:00
Andrey Zonov
5695afded4 - Make truss thread-aware.
Approved by:	kib (mentor)
MFC after:	2 weeks
2012-09-16 14:38:01 +00:00
Andrey Zonov
896fc4638a - Fix detaching under some circumstances.
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
2012-09-12 13:06:57 +00:00
Andrey Zonov
310da894b7 - Remove unused variables.
- Remove redundant return after err(3) call.

Approved by:	kib (mentor)
2012-09-11 16:30:26 +00:00
Andrey Zonov
94355cfdfd - Style(9) cleanup.
Approved by:	kib (mentor)
2012-09-02 11:03:18 +00:00
Andrey Zonov
46448452c0 - Remove unused variables.
- Fix warnings about comparing signed and unsigned ints.

Approved by:	kib (mentor)
2012-08-30 08:54:13 +00:00
Andrey Zonov
3ff6b7162e - Put arguments for print_syscall_ret() function in proper order.
Bug was introduced in r192025.

Approved by:	kib (mentor)
2012-08-23 12:20:29 +00:00
Marcel Moolenaar
7750ad47a9 Sync FreeBSD's bmake branch with Juniper's internal bmake branch.
Requested by: Simon Gerraty <sjg@juniper.net>
2012-08-22 19:25:57 +00:00
Andrey Zonov
be305c9c9f - Use pid_t type instead of just int.
Approved by:	kib (mentor)
2012-08-21 14:58:51 +00:00
Dimitry Andric
085e2c2102 Since truss also uses kdump's mkioctls script, pass the value of ${CPP}
there too, similar to r234058.

MFC after:	1 week
2012-04-09 15:34:22 +00:00
Ed Schouten
a02c83afc5 Add more static keywords to truss(1) source code.
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.
2011-12-10 18:27:55 +00:00
Konstantin Belousov
97695ad4cd Use explicit information from the kernel to detect the traps due to
syscall entry and leave.

Based on submision by:	Dan Nelson <dnelson allantgroup com>
MFC after:	1 month
2011-12-04 18:43:09 +00:00
Dag-Erling Smørgrav
c04743dac1 It turns out that truss also used kdump's mkioctls script, and expected
ioctlname() to return a pointer to the name rather than print it.  This did
not show up in testing because truss had its own prototype for ioctlname(),
so it would build fine and run fine as long as the program being traced did
not issue an ioctl.

Teach mkioctls to generate different versions of ioctlname() based on its
first command-line argument.

Pointed out by:	Garrett Cooper <yanegomi@gmail.com>
2011-10-21 11:08:25 +00:00
Benedict Reuschling
b2bf146e3e Fix typos in comments, no functional changes.
Found by:       codespell
Reviewed by:    alfred
MFC after:      1 week
2011-05-19 20:35:40 +00:00
Jilles Tjoelker
de55508483 Simplify various code that allowed for sys_signame being lower case.
This was changed in r218285.
2011-03-06 19:50:47 +00:00
John Baldwin
ad01891403 Properly check for errors from waitpid().
Submitted by:	gcooper
MFC after:	1 week
2011-02-15 12:42:18 +00:00
Jilles Tjoelker
12dacf622b Make sys_signame upper case.
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'.
2011-02-04 16:40:50 +00:00
Jaakko Heinonen
cdfc719c2e Don't write the terminating NUL past end of buffer.
PR:		bin/152345
Submitted by:	Mateusz Guzik
2010-12-06 09:18:11 +00:00
Jaakko Heinonen
e04c378683 Set FD_CLOEXEC for the output file only when the file has been specified
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
2010-11-13 09:28:49 +00:00
Ed Schouten
a2995e0d9b Remove setpgid() call before executing child process.
Using a separate process group here is bad, since (for example) job
control in the TTY layer prevents interaction with the TTY, causing the
child process to hang.

Mentioned on:	current@
MFC after:	2 weeks
2010-10-20 09:35:20 +00:00
Benedict Reuschling
05844c563e s/sytem/system in comments, no functional changes.
Reviewed by:    alfred@
2010-10-13 20:08:02 +00:00
Nathan Whitehorn
4e5833219a Fix breakage introduced in r211725 and improve functionality of truss on
64-bit powerpc by adding 32-bit compatibility features.
2010-08-28 15:04:53 +00:00
Warner Losh
25faff346c MFtbemd:
Prefer MACHNE_CPUARCH to MACHINE_ARCH in most contexts where you want
to test of all the CPUs of a given family conform.
2010-08-23 22:24:11 +00:00
Nathan Whitehorn
e6d0d807bf Teach truss and xlint how to operate on 64-bit PowerPC systems. 2010-07-12 00:54:41 +00:00
Warner Losh
0a6c71f8fa Fix copyright spelling.
PR:		139825
Submitted by:	Ruslan Mahmatkhanov
2010-03-10 20:31:30 +00:00
Randall Stewart
586df59eed This fix makes it so the args are malloc'd before
we use them (always a good idea ;-0)

This was found and fixed by JC

Obtained from:	JC (c.jayachandran@gmail.com)
2010-02-03 13:03:47 +00:00
Ed Schouten
b7946da96b Build usr.bin/ with WARNS=6 by default.
Also add some missing $FreeBSD$ to keep svn happy.
2010-01-02 10:27:05 +00:00
Brooks Davis
a6fffd6cb0 The devices that supported EVFILT_NETDEV kqueue filters were removed in
r195175.  Remove all definitions, documentation, and usage.

fifo_misc.c:
	Remove all kqueue tests as fifo_io.c performs all those that
	would have remained.

Reviewed by:	rwatson
MFC after:	3 weeks
X-MFC note:	don't change vlan_link_state() function signature
2009-12-31 20:29:58 +00:00
Ed Schouten
2b6d81c176 Allow proper tracing of posix_openpt(2). 2009-12-23 15:22:50 +00:00
Jaakko Heinonen
55a8d2bb22 Cast time_t values to intmax_t and use %jd with printf.
OK'ed by:	delphij
Approved by:	trasz (mentor)
2009-12-21 17:41:57 +00:00
Jaakko Heinonen
c059fa2e24 Remove non-working special case for pipe(2) from amd64-fbsd32.c and
i386-fbsd.c. Add pipe(2) to syscall table to decode it's pointer
argument properly and re-add special handling for pipe(2) return value
to print_syscall_ret().

PR:		bin/120870
Approved by:	trasz (mentor)
2009-12-21 17:38:13 +00:00
Jaakko Heinonen
ecbb6d348f Avoid sharing the file descriptor of the output file with traced
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)
2009-12-20 11:00:53 +00:00
Jaakko Heinonen
76de696d6a Add fork(2), getegid(2), geteuid(2), getgid(2), getpid(2), getpgid(2),
getpgrp(2), getppid(2), getsid(2) and getuid(2) to syscall table to
decode their arguments correctly.

OK'ed by:	delphij
Approved by:	trasz (mentor)
2009-12-20 10:58:34 +00:00
Xin LI
821df508e8 Revert most part of 200420 as requested, as more review and polish is
needed.
2009-12-13 03:14:06 +00:00
Xin LI
6f2d322192 Remove unneeded header includes from usr.bin/ except contributed code.
Tested with:	make universe
2009-12-11 23:35:38 +00:00
Xin LI
948c1a68c6 Correct off-by-one issue in truss(1) which happens when system call number
is nsyscalls.

PR:		bin/134916
Submitted by:	Steven Hartland <steven hartland multiplay co uk>
MFC after:	2 weeks
2009-05-28 00:38:24 +00:00
Xin LI
216fa4c607 Reduce diff against my local version: replace malloc+memset() cases to calloc(). 2009-05-15 19:41:10 +00:00
Diomidis Spinellis
1de3b2ff03 Fix print_syscall_ret parameter order. 2009-05-13 13:00:52 +00:00
Diomidis Spinellis
b53ae7114c Fix compilation error introduced in r192025. 2009-05-13 12:43:37 +00:00
Diomidis Spinellis
ee3b0f6e2e Add -c option to summarize number of calls, errors, and system time.
Reviewed by:	alfred
2009-05-12 20:42:12 +00:00
Xin LI
d5303c8027 Don't exit until all truss children were exit. 2009-04-13 16:23:32 +00:00
Xin LI
f0bcd5c3fa Correct a bug where pr_data should have been assigned. 2009-04-13 16:22:38 +00:00
Warner Losh
89fe547f2a Add preliminary support for truss on MIPS. It compiles, but has not
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.
2009-02-15 01:26:49 +00:00
Tom Rhodes
a88e970c56 Attaching to the init process returns EINVAL,
so give an example that is more likely to work.
Stolen from the ktrace(1) manual page.

PR:		128222
Submitted by:	Mateusz Guzik <mjguzik@gmail.com>
2009-01-23 00:58:14 +00:00
Dag-Erling Smørgrav
d8984f48cb Try to make this code slightly less painful to read. 2008-07-31 17:15:21 +00:00
John Baldwin
8d0c1fa2be Retire some stale alpha references. 2008-05-16 20:09:29 +00:00
John Baldwin
9a55503ec1 Teach truss about 32-bit FreeBSD and Linux binaries on amd64. Some
additional work is needed to handle ABI-specific syscall argument parsing,
but this gets the basic tracing working.

MFC after:	1 week
2008-05-16 15:34:06 +00:00
Dag-Erling Smørgrav
5fb6bed92c Revert CLEANDEPFILES commit per ru@'s request; it does not really solve
the problem.  The correct fix will follow.
2008-02-05 08:52:36 +00:00
Dag-Erling Smørgrav
0d7cc1d0eb Normally, when a header file is removed from the build (as i4b headers
were recently), a simple 'make cleandepend; make depend' is sufficient
to keep the tree buildable after a cvs update when doing incremental
builds.

However, kdump and truss use a script which searches for header files
that define ioctls, and generates C code that includes them.  This
script will usually not need updating when a header file is removed,
so the normal dependency mechanism will not realize that it needs to
be re-run.  One is therefore left with code that references dead files
but will only be removed by a full 'make clean', which defeats the
purpose of incremental builds.

To work around this, modify the cleandepend target in bsd.dep.mk to
also remove any files listed in a new variable named CLEANDEPFILES,
and modify kdump's and truss's Makefiles accordingly.

MFC after:	2 weeks
2008-02-03 11:34:56 +00:00
Jason Evans
9a62623a15 The break() system call takes a pointer argument, not an integer. This
change fixes output for break() on LP64 systems.
2008-01-03 00:18:03 +00:00
Marcel Moolenaar
f235995090 Print integer-typed arguments as integers. This makes sure that
on 64-bit platforms the result is more reliable. For example,
-1 was previously printed as 0xffffffff.

Approved by: re (kensmith)
2007-07-28 23:18:39 +00:00
Marcel Moolenaar
2c02627ff8 Fix handling of Quad-type arguments. Previously, syscalls
containing 64-bit arguments would have explicit padding.
On 64-bit platforms there was no padding, so the dummy
argument was not covering anything. On 32-bit platforms
with weak alignment (i.e. i386) the 64-bit argument did
not need to be aligned, so there too an aditional argument
was introduced. On 32-bit platforms with strong alignment
(i.e. PowerPC) the dummy argument in fact cover the padding.
By elimininating the dummy argument, 64-bit platforms now
have 1 argument less. This also applies to 32-bit platforms
with weak alignment. On PowerPC this doesn't matter, because
the padding is still there. We just don't "name" it.
Deal with those 3 cases.

Approved by: re (kensmith)
2007-07-28 23:15:04 +00:00
Marcel Moolenaar
3e1b607837 Syscalls have at most 6 argument, not 5. See mmap(2) for example.
Previously the offset argument to mmap(2) would be bogus as we
weren't reading it in.

Approved by: re (kensmith)
2007-07-28 23:00:42 +00:00
Xin LI
ef29ac7f76 MFp4: Bugfixes for truss(1):
- 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)
2007-06-26 22:42:37 +00:00
Ruslan Ermilov
a688ea13f5 Don't want a stray systrace_args.c in objdir. 2007-05-22 10:36:12 +00:00
Giorgos Keramidas
42aff2e46d Remove duplicate ' 2' manpage section number.
Submitted by:	 Rui Paulo
MFC after:	 3 days
2007-05-21 20:33:51 +00:00
Xin LI
5d2d083c92 Make use of ptrace(2) instead of procfs in truss(1), eliminating
yet another need of an available /proc/ mount.

Tested with:	make universe
Submitted by:	howardsu
Reviewed by:	alfred
2007-04-10 04:03:34 +00:00
Ruslan Ermilov
353067fc31 Add missing markup bits. 2006-12-11 11:34:44 +00:00
Ruslan Ermilov
cb29445a92 Markup fixes. 2006-09-29 15:20:48 +00:00
Ruslan Ermilov
2d05c776ef Remove alpha-specific stuff. 2006-08-23 12:12:56 +00:00