libc: move getpagesize(s) to libsys

Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908

getpagesize(3): drop support for non-ELF kernels

AT_PAGESZ was introduced with ELF support in 1996 (commit
e1743d02cd14069f69a50bb8a6c626c1c6f47ddd) so we can safely count on
being able to use it to

getpagesize(3): drop support for non-ELF kernels

AT_PAGESZ was introduced with ELF support in 1996 (commit
e1743d02cd14069f69a50bb8a6c626c1c6f47ddd) so we can safely count on
being able to use it to get our page size via elf_aux_info(). As such
we don't need a fallback sysctl query.

Save a few bytes of bss by dropping caching as elf_aux_info() runs
in constant time for a given query.

Reviewed by: kevans, imp, emaste
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D42708

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lib: 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

lib: 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 .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Clean up the vcs ID strings in libc's gen/ directory.

- Move CSRG IDs into __SCCSID().
- When a file has been copied, consistently use 'From: <tag>' for strings
referencing the version of the sour

Clean up the vcs ID strings in libc's gen/ directory.

- Move CSRG IDs into __SCCSID().
- When a file has been copied, consistently use 'From: <tag>' for strings
referencing the version of the source file copied from in the license
block comment.
- Some of the 'From:' tags were using $FreeBSD$ that was being expanded on
each checkout. Fix those to hardcode the FreeBSD tag from the file that
was copied at the time of the copy.
- When multiple strings are present list them in "chronological" order,
so CSRG (__SCCSID) before FreeBSD (__FBSDID). If a file came from
OtherBSD and contains a CSRG ID from the OtherBSD file, use the order
CSRG -> OtherBSD -> FreeBSD.

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D15831

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General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier f

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

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getpagesize(3) cannot fail.

The sysctl(HW_PAGESIZE) call cannot fail on FreeBSD kernels at least.
And even if it failed for some improbable reason, PAGE_SIZE is a safe
value to return.

Discussed wi

getpagesize(3) cannot fail.

The sysctl(HW_PAGESIZE) call cannot fail on FreeBSD kernels at least.
And even if it failed for some improbable reason, PAGE_SIZE is a safe
value to return.

Discussed with: jilles
Sponsored by: The FreeBSD Foundation
MFC after: 1 week

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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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Remove trailing whitespace and use `nitems(mib)` instead of `2` when
calling sysctl(3)

MFC after: 3 days
Sponsored by: EMC / Isilon Storage Division

Use ANSI C prototypes. Eliminates -Wold-style-definition warnings.

Use aux vector to get values for SSP canary, pagesize, pagesizes array,
number of host CPUs and osreldate.

This eliminates the last sysctl(2) calls from the dynamically linked image
startup.

No obj

Use aux vector to get values for SSP canary, pagesize, pagesizes array,
number of host CPUs and osreldate.

This eliminates the last sysctl(2) calls from the dynamically linked image
startup.

No objections from: kan
Tested by: marius (sparc64)
MFC after: 1 month

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Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

Include a couple of headers to ensure consistency between the prototype and
the function definition.

Fix SCM ID's.

Add notice about early use from malloc.c forbidding malloc use from
this function.

Cache the result of getpagesize() so we only make one syscall.
Use getpagesize instead of CLBYTES.

BSD 4.4 Lite Lib Sources