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303975 |
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11-Aug-2016 |
gjb |
Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, and rename it to RC1.
Update __FreeBSD_version.
Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and the dvd1.iso packages population.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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302408 |
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08-Jul-2016 |
gjb |
Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle. Prune svn:mergeinfo from the new branch, as nothing has been merged here.
Additional commits post-branch will follow.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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295931 |
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23-Feb-2016 |
jhb |
Add handling for non-native error values to libsysdecode.
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
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295637 |
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15-Feb-2016 |
jhb |
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
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295056 |
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30-Jan-2016 |
jhb |
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
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294849 |
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26-Jan-2016 |
jhb |
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
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289239 |
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13-Oct-2015 |
bdrewery |
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
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288424 |
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30-Sep-2015 |
jhb |
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
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286963 |
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20-Aug-2015 |
jhb |
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.
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286938 |
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19-Aug-2015 |
jhb |
Various style and whitespace fixes.
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286937 |
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19-Aug-2015 |
jhb |
Use nitems().
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240562 |
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16-Sep-2012 |
zont |
- Make truss thread-aware.
Approved by: kib (mentor) MFC after: 2 weeks
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240005 |
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02-Sep-2012 |
zont |
- Style(9) cleanup.
Approved by: kib (mentor)
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228396 |
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10-Dec-2011 |
ed |
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.
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204977 |
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10-Mar-2010 |
imp |
Fix copyright spelling.
PR: 139825 Submitted by: Ruslan Mahmatkhanov
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192943 |
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28-May-2009 |
delphij |
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
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192153 |
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15-May-2009 |
delphij |
Reduce diff against my local version: replace malloc+memset() cases to calloc().
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192025 |
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12-May-2009 |
dds |
Add -c option to summarize number of calls, errors, and system time.
Reviewed by: alfred
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171055 |
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26-Jun-2007 |
delphij |
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)
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168569 |
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10-Apr-2007 |
delphij |
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
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158626 |
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15-May-2006 |
pav |
- Fix crash when hitting unknown syscall. Copied from i386-fbsd.c
Approved by: alfred
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153963 |
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02-Jan-2006 |
brian |
Add a -s flag for the same functionality as strace. Introduce a Name 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
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132308 |
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17-Jul-2004 |
alfred |
Support readlink(2) better. Readlink does not nul terminate the result buffer, so we need to format it ourselves. The problem is that the length is stored as the return value from readlink, so we need to pass the return value from our syscall into print_arg.
Motivated by: truss garbage on my screen from reading /etc/malloc.conf.
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124217 |
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07-Jan-2004 |
dwmalone |
Move declarations of Procfd to a header file.
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122348 |
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09-Nov-2003 |
marcel |
Port truss(1) to 64-bit architectures: 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.
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106713 |
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09-Nov-2002 |
dwmalone |
Various cleanups of truss: 1) Missing include. 2) Constness. 3) ANSIfication. 4) Avoid some shadowing. 5) Add/clarify some error messages. 6) Some int functions were using return without a value. 7) Mark some parameters as unused. 8) Cast a value we know is non-negative to a size_t before comparing.
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101423 |
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06-Aug-2002 |
mdodd |
- Use time.h not sys/time.h. - Fix printf format errors.
Submitted by: bde
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101374 |
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05-Aug-2002 |
mdodd |
Diff reduction.
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101309 |
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04-Aug-2002 |
bde |
Include <sys/time.h> for the declaration of struct timeval. Do not 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.)
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101289 |
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04-Aug-2002 |
mdodd |
Add options to print the argument and environment string parameters to execve().
This could be done in a more general manner but it still wouldn't be very pretty.
MFC after: 3 weeks
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101286 |
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04-Aug-2002 |
mdodd |
Terminate the output line when a non-returning syscall is printed.
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101283 |
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04-Aug-2002 |
mdodd |
Allow tracking fork()ed children.
PR: bin/25587 (in part) MFC after: 3 weeks
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101282 |
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04-Aug-2002 |
mdodd |
Parameterize globals.
PR: bin/25587 (in part) MFC after: 3 weeks
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100357 |
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19-Jul-2002 |
markm |
s/inline/__inline/
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87703 |
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11-Dec-2001 |
markm |
Partial WARNS=1 fizes with NO_WERROR set to prevent world breakage. Use __FBSDID().
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86501 |
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17-Nov-2001 |
des |
Print the correct return code for successful Linux syscalls.
Submitted by: Vitezslav Novy <vita@fio.cz> PR: 32036 MFC after: 1 week
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85301 |
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22-Oct-2001 |
des |
#include <sys/proc.h> where needed (for the stop event definitions) and reorder includes everywhere to conform to style(9).
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58224 |
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18-Mar-2000 |
sef |
Change the output of truss to more closely resemble SysV's. (Yes, it really is much nicer looking.)
Submitted by: "Matthew N. Dodd" <winter@jurai.net>
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50477 |
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28-Aug-1999 |
peter |
$Id$ -> $FreeBSD$
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37453 |
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06-Jul-1998 |
bde |
Fixed printf format errors.
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32367 |
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09-Jan-1998 |
sef |
Revert the changes yet again, after some email from Bruce. Sorry.
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32355 |
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09-Jan-1998 |
sef |
Proper way to do the previous mis-commit. Still not quite right, because some header files (e.g., <err.h>) include <machine/something.h>, and this will not pick up the right header files, so it may be removed eventually anyway. But some people who are not willing to build the right way apparantly want this, so this is for them.
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32275 |
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05-Jan-1998 |
charnier |
Sort Xrefs. Use err(3). Remove uneeded #include. Correct usage: one of {-p pid, command} is required. Open output file when command line is fully analyzed: incorrect `truss -o f' command does not create an empty file anymore.
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31899 |
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20-Dec-1997 |
sef |
Add some copyright and license terms, at Jordan's request. Note that syscall.h just refers to another file for the copyright notice.
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31567 |
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06-Dec-1997 |
sef |
Truss program. Requires procfs.
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