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Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/cross-dso-cfi

Conflicts:
        Makefile.inc1 (unresolved)
        share/man/man5/src.conf.5 (unresolved)
        targets/pseudo/bootstrap-tools/Makefile (unresolved)
        tools/build/options/WITH_OFED_EXTRA (deleted)

Merge branch 'hardened/current/master' into hardened/current/uninit-autoinit

Merge remote-tracking branch 'origin/freebsd/current/master' into hardened/current/master

Retire obsolete GDB 6.1.1

GDB 6.1.1 was released in June 2004 and is long obsolete. It does not
support all of the architectures that FreeBSD does, and imposes
limitations on the FreeBSD kernel build, such as the continued use of
DWARF2 debugging information.

It was kept (in /usr/libexec/) only for use by crashinfo(8), which
extracts some basic information from a kernel core dump after a crash.
Crashinfo already prefers gdb from port/package if installed.

Future work may add kernel debug support to LLDB or find another path
for crashinfo's needs, but in any case we do not want to ship the
excessively outdated GDB in FreeBSD 13.

Sponsored by:   The FreeBSD Foundation
Differential Revision:  https://reviews.freebsd.org/D27610

Retire obsolete GDB 6.1.1

GDB 6.1.1 was released in June 2004 and is long obsolete. It does not
support all of the architectures that FreeBSD does, and imposes
limitations on the FreeBSD kernel build, such as the continued use of
DWARF2 debugging information.

It was kept (in /usr/libexec/) only for use by crashinfo(8), which
extracts some basic information from a kernel core dump after a crash.
Crashinfo already prefers gdb from port/package if installed.

Future work may add kernel debug support to LLDB or find another path
for crashinfo's needs, but in any case we do not want to ship the
excessively outdated GDB in FreeBSD 13.

Sponsored by:   The FreeBSD Foundation
Differential Revision:  https://reviews.freebsd.org/D27610

Merge remote-tracking branch 'upstream/hardened/current/master' into hardened/current/safestack-arm64

Conflicts:
        contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.cpp (unresolved)
        lib/libclang_rt/Makefile (unresolved)

MFH r338661 through r339200.

Sponsored by:   The FreeBSD Foundation

MFH r338661 through r339200.

Sponsored by:   The FreeBSD Foundation

Merge ^/head r338731 through r338987.

Merge ^/head r338731 through r338987.

Merge remote-tracking branch 'upstream/hardened/current/master' into hardened/current/cross-dso-cfi

Conflicts:
        share/man/man5/src.conf.5 (unresolved)
        sys/conf/kern.pre.mk (unresolved)

Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/unstable

* origin/hardened/current/master:
  HBSD: Regen src.conf.5
  HBSD: Disable reproducible builds by default
  MFV r338866: 9700 ZFS resilvered mirror does not balance reads
  HBSD: Resolve merge conflict
  Use the GNU as-compatible .endm instead of .endmacro.
  Convert x86 TLB top-level invalidation functions to ifuncs.
  libc: require ifunc-capable linker for amd64/i386
  Disable sbrk() use in GNU tools.
  amd64: even up copyin/copyout with memcpy + other cleanup
  Fix possible NULL pointer dereference in ffec_alloc_mbufcl().
  Include kernel ident in uname
  select: stop doing zero-sized memsets
  remove double space between branch and version in kernel ident
  amd64: check for small size in memmove, memcpy and memset
  Add an installer option to disable destructive dtrace.
  Mention setting $lines to 0 in ddb can disable paging

Merge branch 'freebsd/current/master' into hardened/current/master

* freebsd/current/master:
  MFV r338866: 9700 ZFS resilvered mirror does not balance reads
  Use the GNU as-compatible .endm instead of .endmacro.
  Convert x86 TLB top-level invalidation functions to ifuncs.
  libc: require ifunc-capable linker for amd64/i386
  Disable sbrk() use in GNU tools.

Disable sbrk() use in GNU tools.

We're studing the possibility of deprecating sbrk().  To make it easier
we're removing unnecessicary uses in the base system.  None of these
tools require sbrk(), but they agressively prefer it for no good reason.

Reviewed by:    andrew
Approved by:    re (kib)
Sponsored by:   DARPA, AFRL
Differential Revision:  https://reviews.freebsd.org/D16141

Disable sbrk() use in GNU tools.

We're studing the possibility of deprecating sbrk().  To make it easier
we're removing unnecessicary uses in the base system.  None of these
tools require sbrk(), but they agressively prefer it for no good reason.

Reviewed by:    andrew
Approved by:    re (kib)
Sponsored by:   DARPA, AFRL
Differential Revision:  https://reviews.freebsd.org/D16141

Create branch for bhyve graphics import.

Move ^/user/gjb/hacking/release-embedded up one directory, and remove
^/user/gjb/hacking since this is likely to be merged to head/ soon.

Sponsored by:   The FreeBSD Foundation

Copy head at r259933 -> user/gjb/hacking/release-embedded for initial
inclusion of (at least) arm builds with the release.

Sponsored by:   The FreeBSD Foundation

Merge from head

Merge from head

IFC @ r254014

IFC @ r254014

MFC @r219886.

IFC @253398

MFC r244236,r244408,r244915,r247054,r251512:

  Add a new knob WITH_DEBUG_FILES to control the building of standalone
  debug files for userland programs and libraries.  The "-g" debug flag
  is automatically applied when WITH_DEBUG_FILES is set.

  The debug files are named ${prog}.debug and ${shlib}.debug for                  consistency with other systems and documentation.  In addition they are
  installed under /usr/lib/debug, to simplify the process of installing
  them if needed after a crash.  Users of bsd.{prog,lib}.mk outside of the
  base system place the standalone debug files in a .debug subdirectory.
  GDB automatically searches both of these directories for standalone
  debug files.

Merge fresh head.

Add a new knob WITH_DEBUG_FILES to control the building of standalone
debug files for userland programs and libraries.  The "-g" debug flag
is automatically applied when WITH_DEBUG_FILES is set.

The debug files are now named ${prog}.debug and ${shlib}.debug for
consistency with other systems and documentation.  In addition they are
installed under /usr/lib/debug, to simplify the process of installing
them if needed after a crash.  Users of bsd.{prog,lib}.mk outside of the
base system place the standalone debug files in a .debug subdirectory.
GDB automatically searches both of these directories for standalone
debug files.

Thanks to everyone who contributed changes, review, and testing during
development.

Add a new knob WITH_DEBUG_FILES to control the building of standalone
debug files for userland programs and libraries.  The "-g" debug flag
is automatically applied when WITH_DEBUG_FILES is set.

The debug files are now named ${prog}.debug and ${shlib}.debug for
consistency with other systems and documentation.  In addition they are
installed under /usr/lib/debug, to simplify the process of installing
them if needed after a crash.  Users of bsd.{prog,lib}.mk outside of the
base system place the standalone debug files in a .debug subdirectory.
GDB automatically searches both of these directories for standalone
debug files.

Thanks to everyone who contributed changes, review, and testing during
development.

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.