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allows greater flexibility for drivers that want to query the environment.
Reviewed by: jhb, mux
Notes:
svn path=/head/; revision=160217
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kenv environment in kern_environment.c switches to dynamic kenv. The prior
call sets the static variable hintp to the static hints in subr_hints.c
(hintmode==0).
However, changes to the environment are not detected by the resource_xxx
lookups after the change to dynamic kernel environment, so the lookup
routines only report the old stuff of hintmode==0, even after the change to
the dynamic kenv. This causes kenv users to see a different environment than
the kernel routines.
This is a problem in the mixer.c code that looks up initial mixer volume
settings from the hints: If the hints are dynamic and not from the
device.hints file, mixer.c doesn't see them, but kenv does.
The patch from the PR (modified to comply to the style of the function)
solves this.
PR: 83686
Submitted by: Harry Coin <harrycoin@qconline.com>
Notes:
svn path=/head/; revision=148586
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corresponding pointer to the buffer (ret_name and ret_resname) is non-NULL
to avoid possible NULL pointer derefs.
Reported by: Coverity via sam
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svn path=/head/; revision=144077
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MFC after: 3 days
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svn path=/head/; revision=143386
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a specified resource has been disabled via a non-zero 'disabled' hint and
false otherwise.
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svn path=/head/; revision=117166
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Notes:
svn path=/head/; revision=116182
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whitespace and update a comment.
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svn path=/head/; revision=95839
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Otherwise we fall back to using the static hints the next time around.
We still have the leftover fallback code there which meant that we skipped
the use_hints checking on the second and subsequent calls. Also, be a bit
more careful about walking off the end of the envp array.
I've extracted this from a larger diff. I hope I didn't miss anything...
Notes:
svn path=/head/; revision=95593
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Obtained from: mux
Notes:
svn path=/head/; revision=95592
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environment needed at boot time to a dynamic subsystem when VM is
up. The dynamic kernel environment is protected by an sx lock.
This adds some new functions to manipulate the kernel environment :
freeenv(), setenv(), unsetenv() and testenv(). freeenv() has to be
called after every getenv() when you have finished using the string.
testenv() only tests if an environment variable is present, and
doesn't require a freeenv() call. setenv() and unsetenv() are self
explanatory.
The kenv(2) syscall exports these new functionalities to userland,
mainly for kenv(1).
Reviewed by: peter
Notes:
svn path=/head/; revision=94936
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Submitted by: bde
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svn path=/head/; revision=83595
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support. Trying to fix the merged set where dynamic overrode
static was getting more and more complicated by the day.
This should fix the duplicate atkbd, psm, fd* etc in GENERIC. (which
paniced the alpha, but not the i386)
Notes:
svn path=/head/; revision=79696
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- Replace some very poorly thought out API hacks that should have been
fixed a long while ago.
- Provide some much more flexible search functions (resource_find_*())
- Use strings for storage instead of an outgrowth of the rather
inconvenient temporary ioconf table from config(). We already had a
fallback to using strings before malloc/vm was running anyway.
Notes:
svn path=/head/; revision=78135
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