Merge bmake-20240508

Merge commit '3c2ab5fddc576e58f3ffa70dc5fa95144646a513'

Merge bmake-20240430

Merge commit '507951f55039f9d1ceae507d510f8cb68225fbc5'

Merge bmake-20240309

Merge commit '368b06ce6b0135d6de13f7265f6dcbaeb791b3bb'

Update to bmake-20240108

Merge bmake-20230414

Merge commit '51d8a8b4ac1dd7265e891149e470a803906de2a7'

Merge/update to bmake-20230126

Update to bmake-20220724

Merge commit '308a28d6cd2e87028e535eabccb89a9dc2fd9515'

Merge bmake-20220330
Merge commit 'a052cb432096794be5070dc68a2b302eaf5a4783'

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Merge bmake-20240430

Merge commit '507951f55039f9d1ceae507d510f8cb68225fbc5'

Merge bmake-20240309

Merge commit '368b06ce6b0135d6de13f7265f6dcbaeb791b3bb'

Update to bmake-20240108

Merge bmake-20230414

Merge commit '51d8a8b4ac1dd7265e891149e470a803906de2a7'

Merge/update to bmake-20230126

Update to bmake-20220724

Merge commit '308a28d6cd2e87028e535eabccb89a9dc2fd9515'

Merge bmake-20220330
Merge commit 'a052cb432096794be5070dc68a2b302eaf5a4783'

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Merge bmake-20240309

Merge commit '368b06ce6b0135d6de13f7265f6dcbaeb791b3bb'

Update to bmake-20240108

Merge bmake-20230414

Merge commit '51d8a8b4ac1dd7265e891149e470a803906de2a7'

Merge/update to bmake-20230126

Update to bmake-20220724

Merge commit '308a28d6cd2e87028e535eabccb89a9dc2fd9515'

Merge bmake-20220330
Merge commit 'a052cb432096794be5070dc68a2b302eaf5a4783'

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Update to bmake-20240108

Merge bmake-20230414

Merge commit '51d8a8b4ac1dd7265e891149e470a803906de2a7'

Merge/update to bmake-20230126

Update to bmake-20220724

Merge commit '308a28d6cd2e87028e535eabccb89a9dc2fd9515'

Merge bmake-20220330
Merge commit 'a052cb432096794be5070dc68a2b302eaf5a4783'

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Merge bmake-20230414

Merge commit '51d8a8b4ac1dd7265e891149e470a803906de2a7'

Merge/update to bmake-20230126

Update to bmake-20220724

Merge commit '308a28d6cd2e87028e535eabccb89a9dc2fd9515'

Merge bmake-20220330
Merge commit 'a052cb432096794be5070dc68a2b302eaf5a4783'

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Merge/update to bmake-20230126

Update to bmake-20220724

Merge commit '308a28d6cd2e87028e535eabccb89a9dc2fd9515'

Merge bmake-20220330
Merge commit 'a052cb432096794be5070dc68a2b302eaf5a4783'

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Update to bmake-20220724

Merge commit '308a28d6cd2e87028e535eabccb89a9dc2fd9515'

Merge bmake-20220330
Merge commit 'a052cb432096794be5070dc68a2b302eaf5a4783'

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Merge bmake-20220330
Merge commit 'a052cb432096794be5070dc68a2b302eaf5a4783'

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Merge bmake-20220204

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.

Move the call to Job_SetPrefix() to Job_Init() so that
makefiles have had a chance to set .MAKE.JOB.PREFIX

Merge bmake-20130730
Main feature of interest is .MAKE.JOB.PREFIX=
to suppress --- job --- tokens.

Update to bmake-20130604 to fix file descriptor leak.

Update to bmake-20130330

Merge bmake-20130123

Approved by: marcel (mentor)

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Merge bmake-20211212

commit '2935fe8237c83c1dcb113dd5335733263e68e6fd'

make: fix MAKE_JOB_ERROR_TOKEN

The rework of GetBooleanVar to GetBooleanExpr requires
we add "${" and ":U}" around the expression so it can be directly
evaluated.

Reported by: mjg
MFC after: 1 week

#
# 72 columns --|
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR: <If and which Problem Report is related.>
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#
# Uncomment and complete these metadata fields, as appropriate:
#
# PR:
# Reported by: <If someone else reported the issue.>
# Reviewed by: <If someone else reviewed your modification.>
# Approved by: <If you needed approval for this commit.>
# Obtained from: <If the change is from a third party.>
# MFC after: <N [day[s]|week[s]|month[s]]. Request a reminder email>
# MFH: <Ports tree branch name. Request approval for merge.>
# Relnotes: <Set to 'yes' for mention in release notes.>
# Security: <Vulnerability reference (one per line) or description.>
# Sponsored by: <If the change was sponsored by an organization.>
# Pull Request: <https://github.com/freebsd/<repo>/pull/###>
# Differential Revision: <https://reviews.freebsd.org/D###>
#
# "Pull Request" and "Differential Revision" require the *full* GitHub or
# Phabricator URL. The commit author should be set appropriately, using
# `git commit --author` if someone besides the committer sent in the change.
#

Update to bmake-20210621

MFC after: 1 week

Merge commit 'ee914ef902ae018bd4f67192832120f9bf05651f' into new_merge

Merge bmake-20210206

Changes of interest

o unit-tests: use private TMPDIR to avoid errors from other users
o avoid strdup in mkTempFile
o always use vfork
o job.c: do not create empty shell files in jobs mode
reduce unnecessary calls to waitpid
o cond.c: fix debug output for comparison operators in conditionals

Merge bmake-20210110

Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD

Some interesting entries from ChangeLog

o .MAKE.{UID,GID} represent uid and gid running make.

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o add more unit tests for META MODE

Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main

Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c

Merge bmake-20201117

o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.

o More code cleanup and refactoring.

o More unit tests

MFC after: 1 week

Update to bmake-20201101

Lots of new unit-tests increase code coverage.

Lots of refactoring, cleanup and simlpification to reduce
code size.

Fixes for Bug 223564 and 245807

Updates to dirdeps.mk and meta2deps.py

Update to bmake-20200902

Lots of code refactoring, simplification and cleanup.
Lots of new unit-tests providing much higher code coverage.
All courtesy of rillig at netbsd.

Other significant changes:

o new read-only variable .SHELL which provides the path of the shell
used to run scripts (as defined by the .SHELL target).

o variable parsing detects more errors.

o new debug option -dl: LINT mode, does the equivalent of := for all
variable assignments so that file and line number are reported for
variable parse errors.

Update to bmake-20200710

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.
In META MODE; a target flagged .META is out-of-date if meta file
is missing

MFC after: 1 week

Revert r363031

Update to bmake-20200704

Key changes include reduced noise at end of failed build log
and avoid evaluation of unnecessary terms in conditionals.

MFC after: 1 week

Merge bmake-20200517

Changes since 20181221 are mostly portability related
hence the large gap in versions imported.

There are however some bug fixes, and a rework of filemon handling.
In NetBSD make/filemon/filemon_ktrace.c allows use of fktrace
and elimination of filemon(4) which has not had the TLC it needs.

FreeBSD filemon(4) is in much better shape, so bmake/filemon/filemon_dev.c
allows use of that, with a bit less overhead than the ktrace model.

Summary of changes from ChangeLog

o str.c: empty string does not match % pattern
plus unit-test changes
o var.c: import handling of old sysV style modifier using '%'
o str.c: refactor brk_string
o meta.c: meta_oodate, CHECK_VALID_META is too aggressive for CMD
a blank command is perfectly valid.
o meta.c: meta_oodate, check for corrupted meta file
earlier and more often.
* meta.c: meta_compat_parent check for USE_FILEMON
patch from Soeren Tempel
o meta.c: fix compat mode, need to call meta_job_output()
o job.c: extra fds for meta mode not needed if using filemon_dev
o meta.c: avoid passing NULL to filemon_*() when meta_needed()
returns FALSE.
o filemon/filemon_{dev,ktrace}.c: allow selection of
filemon implementation. filemon_dev.c uses the kernel module
while filemon_ktrace.c leverages the fktrace api available in
NetBSD. filemon_ktrace.c can hopefully form the basis for
adding support for other tracing mechanisms such as strace on
Linux.
o meta.c: when target is out-of-date per normal make rules
record value of .OODATE in meta file.
o parse.c: don't pass NULL to realpath(3)
some versions cannot handle it.
o parse.c: ParseDoDependency: free paths rather than assert

plus more unit-tests

Merge bmake-20180512

Skip polling job token pipe,
better handle sysV style includes with variables.

Revert accidentally commited local change to bmake to prevent debilitating
excess system time from poor API usage.

Approved by: sbruno@

Add simple preempt safe epoch API

Read locking is over used in the kernel to guarantee liveness. This API makes
it easy to provide livenes guarantees without atomics.

Includes epoch_test kernel module to stress test the API.

Documentation will follow initial use case.

Test case and improvements to preemption handling in response to discussion
with mjg@

Reviewed by: imp@, shurd@
Approved by: sbruno@

Update to bmake-201802222

Fixes segfault in Var_Set if val is NULL
Don't treat .info as warning with -W

Import bmake-20170720

Includes fix for compat handling of interrupts.

Merge bmake-20170420

Update to bmake 20170413

Merge bmake-20161212

Merge bmake-20160512

Merge bmake-20160307

Merge bmake 20151020

Merge bmake-20150418

PR: 199486

If MAKE_JOB_ERROR_TOKEN is set to false, do not put an error token ("E")
into the job queue.
This avoids closing down an entire build on failure of one branch.
Probably has no use outside the context of universe/tinderbox.

Reviewed by: obrien

Merge bmake-20130904

Add .MAKE.ALWAYS_PASS_JOB_QUEUE knob (default yes)
for backwards compatability.