Turn MALLOC_PRODUCTION into a regular src.conf(5) option

For historical reasons, defining MALLOC_PRODUCTION in /etc/make.conf has
been used to turn off potentially expensive debug checks and statistics
gathering in the implementation of malloc(3).

It seems more consistent to turn this into a regular src.conf(5) option,
e.g. WITH_MALLOC_PRODUCTION / WITHOUT_MALLOC_PRODUCTION. This can then
be toggled similar to any other source build option, and turned on or
off by default for e.g. stable branches.

Reviewed by: imp, #manpages
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D26337

Set LG_VADDR to 48 on RISC-V.

The Sv48 PTE format is the largest currently defined address space for
RISC-V. It makes no sense to define a larger size and doing so (at
least for 64-bits) forces rtrees down a slow path.

Reviewed by: vangyzen, jhb, mhorne
Obtained from: CheriBSD
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24658

Update jemalloc to version 5.2.1

Revert r354606 to restore r354605.

Apply one line from jemalloc commit d01b425e5d1e1 in hash_x86_128()
to fix the build with gcc, which only allows a fallthrough attribute
to appear before a case or default label.

Submitted by: jasone in r354605
Discussed with: jasone
Reviewed by: bdrewery
MFC after: never, due to gcc 4.2.1
Relnotes: yes
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D24522

Revert r354605: Update jemalloc to version 5.2.1.

Compilation fails for non-llvm-based platforms.

Update jemalloc to version 5.2.1.

Update jemalloc to version 5.1.0.

Account for the fact that jemalloc 5.0.0 dropped STATIC_PAGE_SHIFT
in favor for using LG_PAGE directly and, thus, for the fact that
host and target don't necessarily use pages of the same sizes.

Approved by: jasone

Default the abort_conf malloc option to false.

This avoids troublesome backward compatibility issues.

Update jemalloc to 5.0.0.

Update jemalloc to 4.5.0.

Update jemalloc to 4.4.0.

Update jemalloc to 4.3.1.

Update jemalloc to 4.2.1.

Work around invalid gcc warning (explicit cast apparently lost).

Update jemalloc to 4.2.0.

Update jemalloc to 4.1.0.

Add missing Symbol.map entry for __aligned_alloc.

Add weak-->strong symbol binding for
{malloc_stats_print,mallctl,mallctlnametomib,mallctlbymib} -->
{__malloc_stats_print,__mallctl,__mallctlnametomib,__mallctlbymib}. These
bindings complete the set necessary to allow applications to replace all
malloc-related symbols.

Update jemalloc to version 4.0.4.

Update jemalloc to 4.0.2.

Fix minor malloc regressions.

- Use _Bool rather than bool to resolve missing type errors in malloc_np.h.
- Fix malloc manual page #include documentation.
- Add *allocm manual pages to obsolete files.

Submitted by: jbeich

Define CPU_SPINWAIT as cpu_spinwait().

Submitted by: cem

Re-add LG_SIZEOF_PTR definition for __aarch64__.

This definition was erroneously removed during the 4.0.0 import.

Update jemalloc to version 4.0.0.

Update jemalloc to version 3.6.0.

Update jemalloc to version 3.5.0.

Update jemalloc to version 3.4.1.

Update jemalloc to version 3.4.0.

Import jemalloc 3.3.0. This reduces zeroed memory validation overhead for
non-MALLOC_PRODUCTION builds.

Import jemalloc 3.2.0.

Since our clang now supports the tls_model attribute, remove the
workaround for it in jemalloc_FreeBSD.h.

Reviewed by: jasone

Fix config_lazy_lock so that thread caching isn't used for
single-threaded applications.

Import jemalloc 3.0.0. This fixes memory zeroing bugs that manifested as
jemalloc assertion failures for debug builds, or as calloc() sometimes
returning non-zeroed memory for production builds.

Import jemalloc 37b6f95dcd866f51c91488531a2efc3ed4c2b754 (dev branch,
prior to 3.0.0 release). This version is likely very close to what will be
3.0.0.

Import jemalloc a8f8d7540d66ddee7337db80c92890916e1063ca (dev branch,
prior to 3.0.0 release). This fixes several bugs related to memory
initialization.

Mangle __jemalloc_a0{malloc,calloc,free}() just like all the other
library-internal symbols in jemalloc, and adjust the tls allocation code
in libc to use the mangled names.

Import jemalloc 606f1fdc3cdbc700717133ca56685313caea24bb (dev branch,
prior to 3.0.0 release), and mangle internal symbols.

Import jemalloc b57d3ec571c6551231be62b7bf92c084a8c8291c (dev branch,
prior to 3.0.0 release), which supports atomic operations based on atomic(9).
This should fix build failures for several platforms.

Import jemalloc 9ef7f5dc34ff02f50d401e41c8d9a4a928e7c2aa (dev branch,
prior to 3.0.0 release) as contrib/jemalloc, and integrate it into libc.
The code being imported by this commit diverged from
lib/libc/stdlib/malloc.c in March 2010, which means that a portion of
the jemalloc 1.0.0 ChangeLog entries are relevant, as are the entries
for all subsequent releases.