Commit Graph

13 Commits

Author SHA1 Message Date
pfg
260ba0bff1 lib: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified 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.
2017-11-26 02:00:33 +00:00
markj
5b3fdedc68 libproc: Add support for some proc_attach() flags.
This change adds some handling for the equivalent of Solaris' PGRAB_*
flags. In particular, support for PGRAB_RDONLY is needed to avoid a
nasty deadlock: dtrace(1) may otherwise stop the master process for its
pseudo-terminal and end up blocking while writing to standard output.
2016-12-06 04:22:38 +00:00
markj
6d8ec25867 libproc: Make proc_getpid() an accessor for struct proc_handle.
This allows librtld_db to fetch the PID from a handle without calling into
libproc. Together with r303531, this means that librtld_db no longer
references symbols from libproc.
2016-12-06 04:14:20 +00:00
markj
b01fc06ffd Fix style bugs and remove trailing whitespace in libproc and librtld_db.
MFC after:	1 week
2016-12-06 04:13:02 +00:00
markj
3ded4ca51d libproc: Add proc_getmodel().
This is used by libdtrace to determine the data model of target processes.
This allows for the creation of pid provider probes in 32-bit processes on
amd64.

MFC after:	1 month
2016-07-30 03:09:23 +00:00
markj
bddfd9feb6 If the traced process stops because it received a signal, libproc needs
to ensure that the signal is forwarded when proc_continue() is called.

MFC after:	3 weeks
2014-05-04 03:34:32 +00:00
markj
bb1072d7ef Revert r257248 and fix the problem in a way that doesn't violate style(9).
Suggested by:	jmg
2013-10-29 03:12:31 +00:00
markj
1da863f2b4 Fix the build with gcc. 2013-10-28 12:42:27 +00:00
markj
7799e79095 Clean up the debug printing in libproc a bit. In particular:
* Don't print any error messages to stderr unless DEBUG is defined.
* Add a DPRINTFX macro for use when errno isn't set.
* Print the error string from libelf when appropriate.
2013-10-27 20:39:10 +00:00
rpaulo
db492a9564 Ignore EINTR when calling waitpid. 2010-09-18 23:38:21 +00:00
rpaulo
afd44137e8 Several fixes for libproc:
o return the correct status in proc_wstatus()
o proc_read takes a void *
o correctly allocate the objs structure array

Sponsored by:	The FreeBSD Foundation
2010-08-11 17:33:26 +00:00
rpaulo
a049970caa New version of libproc. Changes are:
* breakpoint setup support
* register query
* symbol to address mapping and vice-versa
* more misc utility functions based on their Solaris counterpart

Also, I've written some test cases.

Sponsored by:	The FreeBSD Foundation
2010-07-31 16:10:20 +00:00
jb
4ac55b46bd Add a process library with some stubs that the DTrace client needs.
These will be fleshed out as part of the DTrace userland tracing
development.

For now, the kernel tracing part of DTrace requires minimal functionality
for this library.

The API for this library is deliberately different from the libproc in
OpenSolaris due to licensing restrictions.
2008-05-22 02:09:21 +00:00