Age | Commit message (Collapse) | Author |
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Adds the following capabilities to dyntrace
* enabled_running_ports/3
* enabled_running_procs/3 changed from enabled_running/3
* trace_running_ports/6
* trace_running_procs/6 changed from trace_running/6
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Adds the following capabilities to dyntrace
* enabled_procs/3
* enabled_ports/3
* enabled_running/3
* enabled_call/3
* enabled_send/3
* enabled_receive/3
* enabled_garbage_collection/3
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DTrace was recently patched in Illumos to fail to create an object
file if no probes are found.
* https://www.illumos.org/issues/4248
* https://github.com/illumos/illumos-gate/commit/54a20ab41aadcb81c53e72fc65886e964e9add59
This patch fixes two issues:
* Modify the configure script to pass an object file to `dtrace -G`
that actually invokes a probe.
* Remove creation of `dtrace_user.o` from the dyntrace Makefile. In a
previous commit [1] Scott Fritchie relocated all the user probes
into the VM proper due to difficulties with DTrace probes in shared
libraries. The `dtrace_user.d` file is now empty and generates a
header file with nothing in it. There is no longer any reason to
generate `dtrace_user.o` because all the probes are in the VM. Thus
all the steps for building `dtrace_user.o` have been removed.
[1]: https://github.com/erlang/otp/commit/75552bd3bb4e7f3cf4dab81a5c81cf73b1d3fb99
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Due to various operating systems (in both the DTrace and SystemTap
worlds) not fully supporting DTrace probes (or SystemTap-compatibility
mode probes) in shared libraries, we relocate those probes to the
statically-linked virtual machine. This could be seen as pollution
of the pristine VM by a (yet) experimental feature. However:
1. This code can be eliminated completely by the C preprocessor.
2. Leaving the probes in the dyntrace NIF shared library simply
does not work correctly on too many platforms.
*Many* thanks to Macneil Shonle at Basho for assisting when my
RSI-injured fingers gave out.
Tested on:
* CentOS 5, SystemTap 1.3
* Solaris 10 (note)
* Solaris 11
* OpenIndiana 151
* SmartOS 20120809T221258Z
* FreeBSD 9.0-RELEASE (note)
I had hoped to be able to test CentOS 6 + SystemTap 1.7, but the
details of dealing with all dependencies for a 2.6.32-279.5.1.el6.x86_64
kernel are too time consuming right now.
(note: Solaris 10 and FreeBSD 9.0-RELEASE can take a long time to compile)
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Also make dyntrace NIF's load in on_load instead of init/0
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