src/sys/modules/dtrace/dtrace_test, branch main

Remove residual blank line at start of Makefile

2024-07-15T22:43:39+00:00

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

sys: Remove $FreeBSD$: one-line sh pattern

2023-08-16T17:54:58+00:00

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Don't redefine _KERNEL.

2017-11-24T19:08:54+00:00

MFC after:	1 week

sys/modules: normalize .CURDIR-relative paths to SRCTOP

2017-03-04T10:10:17+00:00

This simplifies make output/logic

Tested with:	`cd sys/modules; make ALL_MODULES=` on amd64
MFC after:	1 month
Sponsored by:	Dell EMC Isilon

Use SYSDIR to reference to the top of the sys hierarchy. Define SYSDIR

2014-03-06T01:59:13+00:00

relative to .CURDIR if not already defined. This makes the makefiles
more readable but also more re-usable and adaptable.

Obtained from:	Juniper Networks, Inc.

- For kernel compiled only with KDTRACE_HOOKS and not any lock debugging

2013-11-25T07:38:45+00:00

  option, unbreak the lock tracing release semantic by embedding
  calls to LOCKSTAT_PROFILE_RELEASE_LOCK() direclty in the inlined
  version of the releasing functions for mutex, rwlock and sxlock.
  Failing to do so skips the lockstat_probe_func invokation for
  unlocking.
- As part of the LOCKSTAT support is inlined in mutex operation, for
  kernel compiled without lock debugging options, potentially every
  consumer must be compiled including opt_kdtrace.h.
  Fix this by moving KDTRACE_HOOKS into opt_global.h and remove the
  dependency by opt_kdtrace.h for all files, as now only KDTRACE_FRAMES
  is linked there and it is only used as a compile-time stub [0].

[0] immediately shows some new bug as DTRACE-derived support for debug
in sfxge is broken and it was never really tested.  As it was not
including correctly opt_kdtrace.h before it was never enabled so it
was kept broken for a while.  Fix this by using a protection stub,
leaving sfxge driver authors the responsibility for fixing it
appropriately [1].

Sponsored by:	EMC / Isilon storage division
Discussed with:	rstone
[0] Reported by:	rstone
[1] Discussed with:	philip

opensolaris code: translate INVARIANTS to DEBUG and ZFS_DEBUG

2013-08-06T15:51:56+00:00

Do this by forcing inclusion of
sys/cddl/compat/opensolaris/sys/debug_compat.h
via -include option into all source files from OpenSolaris.
Note that this -include option must always be after -include opt_global.h.

Additionally, remove forced definition of DEBUG for some modules and fix
their build without DEBUG.

Also, meaning of DEBUG was overloaded to enable WITNESS support for some
OpenSolaris (primarily ZFS) locks.  Now this overloading is removed and
that use of DEBUG is replaced with a new option OPENSOLARIS_WITNESS.

MFC after:	17 days

Port the SDT test now that it's possible to create SDT probes that take

2013-06-02T00:33:36+00:00

seven arguments.

The original test uses Solaris' uadmin system call to trigger the test
probe; this change adds a sysctl to the dtrace_test module and gets the test
program to trigger the test probe via the sysctl handler.

The test is currently failing on amd64 because of some bugs in the way that
probe arguments beyond the first five are obtained - these bugs will be
fixed in a separate change.

Add the DTrace kernel module makefiles.

2008-05-17T02:31:19+00:00