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 at

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

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Revert r354605: Update jemalloc to version 5.2.1.

Compilation fails for non-llvm-based platforms.

Update jemalloc to version 5.2.1.

realloc(x, 0) should not return NULL.

See http://www.open-std.org/jtc1/sc22/wg14/www/docs/summary.htm#dr_400.
Upstream jemalloc issue is opened by emaste at
https://github.com/jemalloc/jemalloc/issu

realloc(x, 0) should not return NULL.

See http://www.open-std.org/jtc1/sc22/wg14/www/docs/summary.htm#dr_400.
Upstream jemalloc issue is opened by emaste at
https://github.com/jemalloc/jemalloc/issues/1629.

Reviewed by: emaste
PR: 240456
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
DIfferential revision: https://reviews.freebsd.org/D21632

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Update jemalloc to version 5.1.0.

Update jemalloc to 5.0.1.

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.

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

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.

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Update jemalloc to 4.0.2.

Update jemalloc to version 4.0.0.

Fix known issues which blow up the process after dlopen("libthr.so")
(or loading a dso linked to libthr.so into process which was not
linked against threading library).

- Remove libthr interposers o

Fix known issues which blow up the process after dlopen("libthr.so")
(or loading a dso linked to libthr.so into process which was not
linked against threading library).

- Remove libthr interposers of the libc functions, including
__error(). Instead, functions calls are indirected through the
interposing table, similar to how pthread stubs in libc are already
done. Libc by default points either to syscall trampolines or to
existing libc implementations. On libthr load, libthr rewrites the
pointers to the cancellable implementations already in libthr. The
interposition table is separate from pthreads stubs indirection
table to not pull pthreads stubs into static binaries.

- Postpone the malloc(3) internal mutexes initialization until libthr
is loaded. This avoids recursion between calloc(3) and static
pthread_mutex_t initialization.

- Reinstall signal handlers with wrapper on libthr load. The
_rtld_is_dlopened(3) is used to avoid useless calls to sigaction(2)
when libthr is statically referenced from the main binary.

In the process, fix openat(2), swapcontext(2) and setcontext(2)
interposing. The libc symbols were exported at different versions
than libthr interposers. Export both libc and libthr versions from
libc now, with default set to the higher version from libthr.

Remove unused and disconnected swapcontext(3) userspace implementation
from libc/gen.

No objections from: deischen
Tested by: pho, antoine (exp-run) (previous versions)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week

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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.

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.

Work around llvm PR 12623, which makes variables declared with .symver
sometimes disappear from the resulting object file, if compiled with
clang. In particular, this can lead to errors when buildin

Work around llvm PR 12623, which makes variables declared with .symver
sometimes disappear from the resulting object file, if compiled with
clang. In particular, this can lead to errors when building world with
clang and -g, similar to:

/usr/obj/usr/src/tmp/usr/lib/libc.so: undefined reference to `_malloc_options'

Reported by: Conrad J. Sabatier <[email protected]>
Reviewed by: jasone

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