bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line .h pattern

Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/

Merge ^/head r314420 through r314481.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head.

sh: Remove global state from nodes.c.

No functional change is intended.

IFC @ r254014

IFC @253398

Merge fresh head.

sync from head

sh: Add const to nodesavestr().

In the spirit of r90111, depend on c89 and remove the "STATIC" macro
and its usage.

MFC r196483,r196634:
sh: Fix crash when undefining or redefining a currently executing function

Add a reference count to function definitions.
Memory may leak if a SIGINT arrives in interactive mode

MFC r196483,r196634:
sh: Fix crash when undefining or redefining a currently executing function

Add a reference count to function definitions.
Memory may leak if a SIGINT arrives in interactive mode at exactly the wrong
time, this will be fixed later by changing SIGINT handling.

PR: bin/137640
Approved by: re (kib)

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Merge from head

- MFC from head@196987

sh: Fix crash with empty functions (f() { }) introduced in r196483

Empty pairs of braces are represented by a NULL node pointer, just like
empty lines at the top level.

Support for empty pairs of b

sh: Fix crash with empty functions (f() { }) introduced in r196483

Empty pairs of braces are represented by a NULL node pointer, just like
empty lines at the top level.

Support for empty pairs of braces may be removed later. They make the code
more complex, have inconsistent behaviour (may or may not change $?), are
not specified by POSIX and are not allowed by some other shells like bash,
dash and ksh93.

Reported by: kan

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sh: Fix crash when undefining or redefining a currently executing function.

Add a reference count to function definitions.
Memory may leak if multiple SIGINTs arrive in interactive mode,
this will b

sh: Fix crash when undefining or redefining a currently executing function.

Add a reference count to function definitions.
Memory may leak if multiple SIGINTs arrive in interactive mode,
this will be fixed later by changing SIGINT handling.

PR: bin/137640

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Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

Changes following CScout analysis:

- Removed dead declarations
- Made objects that should have been declared as static, static.

The changes use STATIC instead of static, following the existing
conv

Changes following CScout analysis:

- Removed dead declarations
- Made objects that should have been declared as static, static.

The changes use STATIC instead of static, following the existing
convention in the rest of the code.

Approved by: schweikh (mentor)
MFC after: 2 weeks

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Third attempt at removing machdep.h and using ALIGN from <sys/param.h>.
The initial stack_block is staticly allocated and will be aligned
according to the alignment requirements of pointers, which do

Third attempt at removing machdep.h and using ALIGN from <sys/param.h>.
The initial stack_block is staticly allocated and will be aligned
according to the alignment requirements of pointers, which does not
necessarily match the alignment enforced by ALIGN. To solve this a
more involved change is required: remove the static initial stack
and deal with an initial condition of not having a stack at all. This
change is therefore more risky than the previous ones, but unavoidable
(other than not using the platform default alignment).

Discussed with: tjr
Approved and reviewed by: tjr
Tested on: alpha, i386, ia64 and sparc64

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Revert ALIGN change for the second and last time. I can't figure out
why this is breaking sparc64.

Second attempt at removing machdep.h and using ALIGN from <sys/param.h>.
The problem with the previous attempt, as noticed by Marcel, was that
stacknxt was being aligned to a pointer boundary instead

Second attempt at removing machdep.h and using ALIGN from <sys/param.h>.
The problem with the previous attempt, as noticed by Marcel, was that
stacknxt was being aligned to a pointer boundary instead of an
ALIGNBYTES + 1 boundary, which broke sparc64.

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Temporarily back out machdep.h/ALIGN changes. It seems that on sparc64,
using the alignment from sys/param.h (16) instead of the alignment
from machdep.h (8) tickled a nasty bug in the memory allocat

Temporarily back out machdep.h/ALIGN changes. It seems that on sparc64,
using the alignment from sys/param.h (16) instead of the alignment
from machdep.h (8) tickled a nasty bug in the memory allocator that I
haven't been able to track down yet.

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Use the ALIGN macro from <sys/param.h> instead of defining our own
incorrect version in machdep.h. Delete machdep.h.