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

MFC r355940:

Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.0 final release r372316.

(NOTE: This does not yet consolidate all the llvm project sources under
contrib/llvm-project (e.g., MFC r355940), due to Subversion limitations.
It will be done in a follow-up MFC.)

MFC r348610 (by emaste):

build llvm-ar and llvm-nm with Clang (promote out of CLANG_EXTRAS)

To facilitate experimentation with LTO we require an ar that supports
LLVM IR, and to a lesser degree also an nm.  As a first step always
install llvm-ar and llvm-nm.

Sponsored by:   The FreeBSD Foundation

MFC r350453 (by asomers):


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

Conflicts:
        gnu/lib/libgcc/Makefile (deleted)
        share/man/man5/src.conf.5 (unresolved)
        usr.bin/clang/lld/Makefile (unresolved)
        usr.sbin/rpc.statd/Makefile (unresolved)

Merge remote-tracking branch 'origin/freebsd/12-stable/master' into hardened/12-stable/master

Conflicts:
        contrib/compiler-rt/lib/cfi/cfi.cc (deleted)
        contrib/llvm/tools/clang/lib/Driver/SanitizerArgs.cpp (deleted)
        lib/libclang_rt/Makefile (unresolved)
        lib/libclang_rt/cfi/Makefile (unresolved)
        share/man/man5/src.conf.5 (unresolved)
        tools/build/mk/OptionalObsoleteFiles.inc (unresolved)
        usr.bin/clang/lld/Makefile (unresolved)

MFC r355940:

Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

MFC r355940:

Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.0 final release r372316.

(NOTE: This does not yet consolidate all the llvm project sources under
contrib/llvm-project (e.g., MFC r355940), due to Subversion limitations.
It will be done in a follow-up MFC.)

MFC r348610 (by emaste):

build llvm-ar and llvm-nm with Clang (promote out of CLANG_EXTRAS)

To facilitate experimentation with LTO we require an ar that supports
LLVM IR, and to a lesser degree also an nm.  As a first step always
install llvm-ar and llvm-nm.

Sponsored by:   The FreeBSD Foundation

MFC r350467 (by luporl):


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Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.0 final release r372316.

(NOTE: This does not yet consolidate all the llvm project sources under
contrib/llvm-project (e.g., MFC r355940), due to Subversion limitations.
It will be done in a follow-up MFC.)

MFC r348610 (by emaste):

build llvm-ar and llvm-nm with Clang (promote out of CLANG_EXTRAS)

To facilitate experimentation with LTO we require an ar that supports
LLVM IR, and to a lesser degree also an nm.  As a first step always
install llvm-ar and llvm-nm.

Sponsored by:   The FreeBSD Foundation

MFC r350467 (by luporl):


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

Conflicts:
        usr.bin/clang/lld/Makefile (unresolved)

Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

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

Conflicts:
        contrib/llvm/tools/clang/lib/Driver/SanitizerArgs.cpp (unresolved)
        lib/libclang_rt/Makefile (unresolved)
        lib/libclang_rt/cfi/Makefile (unresolved)
        share/man/man5/src.conf.5 (unresolved)
        sys/conf/files.sparc64 (unresolved)
        tools/build/mk/OptionalObsoleteFiles.inc (unresolved)

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.0 final release r372316.

Release notes for llvm, clang, lld and libc++ 9.0.0 are available here:

https://releases.llvm.org/9.0.0/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.0/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.0/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.0/projects/libcxx/docs/ReleaseNotes.html

PR:             240629
MFC after:      1 month

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.0 final release r372316.

Release notes for llvm, clang, lld and libc++ 9.0.0 are available here:

https://releases.llvm.org/9.0.0/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.0/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.0/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.0/projects/libcxx/docs/ReleaseNotes.html

PR:             240629
MFC after:      1 month

Merge lld trunk r366426, and resolve conflicts.

Merge lld trunk r366426, and resolve conflicts.

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

Conflicts:
        share/mk/src.opts.mk (unresolved)

Merge remote-tracking branch 'origin/hardened/11-stable/master' into hardened/11-stable/unstable

* origin/hardened/11-stable/master:
  MFC r345192-r345194: if_bridge(4): Drop pointless rtflush
  MFC r346132: stand: refactor overlay loading a little bit
  MFC r345180, r345187: if_bridge(4): Fix module teardown
  Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 8.0.0 final release r356365.
  MFC r345805: Unify SCSI_STATUS_BUSY retry handling with other cases.
  MFC r346064: Fix dirty buf exhaustion easily triggered with msdosfs.
  MFC r345425, r345514, r345799, r345800, r345803, r346157: Enable tmpfs rw->ro remounts.
  Release notes documentation: - r336449, setproctitle_fast(3) addition. - r337418, kqueue(2) allow EVFILT_TIMER updates. - r338405, pthread_get_name_np(3) addition. - r339857, ddb(4) option to print process arguments added. - r340182, ichwd(4) support for Lewisburg PCH TCO watchdog timer. - r341828, ZFS vnode reclaimation deadlock fixed. - r342206, lagg(4) allow changing MTU without destroying interface. - r342656, x86 MSI IRQs are now tunable. - r343084, jail(8) IDs printed when logging a process exit. - r344399, zfsloader functionality now part of loader(8). - r344399, loader(8) GELI support extended to all architectures. - r344403, efi guess console device/type if not defined. - r345040, ccr(4) driver addition. - r345981, random(4) reseeding performance improvements.

Merge branch 'freebsd/11-stable/master' into hardened/11-stable/master

* freebsd/11-stable/master:
  MFC r345192-r345194: if_bridge(4): Drop pointless rtflush
  MFC r346132: stand: refactor overlay loading a little bit
  MFC r345180, r345187: if_bridge(4): Fix module teardown
  Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 8.0.0 final release r356365.
  MFC r345805: Unify SCSI_STATUS_BUSY retry handling with other cases.
  MFC r346064: Fix dirty buf exhaustion easily triggered with msdosfs.
  MFC r345425, r345514, r345799, r345800, r345803, r346157: Enable tmpfs rw->ro remounts.
  Release notes documentation: - r336449, setproctitle_fast(3) addition. - r337418, kqueue(2) allow EVFILT_TIMER updates. - r338405, pthread_get_name_np(3) addition. - r339857, ddb(4) option to print process arguments added. - r340182, ichwd(4) support for Lewisburg PCH TCO watchdog timer. - r341828, ZFS vnode reclaimation deadlock fixed. - r342206, lagg(4) allow changing MTU without destroying interface. - r342656, x86 MSI IRQs are now tunable. - r343084, jail(8) IDs printed when logging a process exit. - r344399, zfsloader functionality now part of loader(8). - r344399, loader(8) GELI support extended to all architectures. - r344403, efi guess console device/type if not defined. - r345040, ccr(4) driver addition. - r345981, random(4) reseeding performance improvements.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
8.0.0 final release r356365.

MFC r306265 (by emaste):

Force LLVM_LIBUNWIND off if we don't have a C++11 compiler

Tested by:      bde
Differential Revision:  https://reviews.freebsd.org/D7746

MFC r308100 (by emaste):

compile libunwind c source with -fexceptions

When an exception is thrown the unwinder must unwind its own C source
(starting with _Unwind_RaiseException in UnwindLevel1.c), so it needs to
be built with unwinding data.

MFC r324998 (by bdrewery):

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Merge remote-tracking branch 'origin/freebsd/12-stable/master' into hardened/12-stable/master

Conflicts:
        ObsoleteFiles.inc (unresolved)
        contrib/compiler-rt/lib/cfi/cfi.cc (unresolved)
        sys/vm/vm_map.c (unresolved)

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
8.0.0 final release r356365.

MFC r340287 (by emaste):

Consolidate gcov entries in OptionalObsoleteFiles

Sponsored by:   The FreeBSD Foundation

MFC r340289 (by emaste):

llvm-cov: also install as gcov (if GNU gcov is disabled)

llvm-cov provides a gcov-compatible interface when invoked as gcov.

Reviewed by:    dim, markj
Sponsored by:   The FreeBSD Foundation
Differential Revision:  https://reviews.freebsd.org/D17923


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Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
8.0.0 final release r356365.

MFC r340287 (by emaste):

Consolidate gcov entries in OptionalObsoleteFiles

Sponsored by:   The FreeBSD Foundation

MFC r340289 (by emaste):

llvm-cov: also install as gcov (if GNU gcov is disabled)

llvm-cov provides a gcov-compatible interface when invoked as gcov.

Reviewed by:    dim, markj
Sponsored by:   The FreeBSD Foundation
Differential Revision:  https://reviews.freebsd.org/D17923


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

* origin/hardened/current/master: (48 commits)
  Ensure that we use a 64-bit value for the last mmap() argument.
  This is an additional and hopefully final fix for bug report 230962. This bug was introduced with the change to use softdep_bp_to_mp() in January 2018 changes -r327723 and -r327821. The softdep_bp_to_mp() function failed to include VSOCK as one of the valid cases.
  Build common kernel dependencies before modules.
  Rename fuse(4) to fusefs(4)
  Pull in r352826 from upstream lld trunk (by Fangrui Song):
  Use -fdebug-prefix-map to map auto-generated kernel build paths.
  Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 8.0.0 final release r356365.  There were no functional changes since the most recent merge, of 8.0.0 rc5.
  googletest: backport GTEST_SKIP to googletest 1.8.1
  fuse(4): fix a race condition in the tests
  fuse(4): remove more debugging printfs
  fuse(4): build the tests with the new googletest in base
  fuse(4): add tests for some mount options.
  fuse(4): add tests for the FOPEN_KEEP_CACHE option
  fuse(4): add tests for the FUSE_ASYNC_READ option
  VOP_INACTIVE(9): clarify wording
  fuse(4): add tests for ENOSYS special cases

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

* freebsd/current/master: (48 commits)
  Ensure that we use a 64-bit value for the last mmap() argument.
  This is an additional and hopefully final fix for bug report 230962. This bug was introduced with the change to use softdep_bp_to_mp() in January 2018 changes -r327723 and -r327821. The softdep_bp_to_mp() function failed to include VSOCK as one of the valid cases.
  Build common kernel dependencies before modules.
  Rename fuse(4) to fusefs(4)
  Pull in r352826 from upstream lld trunk (by Fangrui Song):
  Use -fdebug-prefix-map to map auto-generated kernel build paths.
  Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 8.0.0 final release r356365.  There were no functional changes since the most recent merge, of 8.0.0 rc5.
  googletest: backport GTEST_SKIP to googletest 1.8.1
  fuse(4): fix a race condition in the tests
  fuse(4): remove more debugging printfs
  fuse(4): build the tests with the new googletest in base
  fuse(4): add tests for some mount options.
  fuse(4): add tests for the FOPEN_KEEP_CACHE option
  fuse(4): add tests for the FUSE_ASYNC_READ option
  VOP_INACTIVE(9): clarify wording
  fuse(4): add tests for ENOSYS special cases

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MFHead @345353

MFHead @345353

Pull in r352826 from upstream lld trunk (by Fangrui Song):

  [ELF] Support --{,no-}allow-shlib-undefined

  Summary:
  In ld.bfd/gold, --no-allow-shlib-undefined is the default when
  linking an executable. This patch implements a check to error on
  undefined symbols in a shared object, if all of its DT_NEEDED entries
  are seen.

  Our approach resembles the one used in gold, achieves a good balance
  to be useful but not too smart (ld.bfd traces all DSOs and emulates
  the behavior of a dynamic linker to catch more cases).

  The error is issued based on the symbol table, different from
  undefined reference errors issued for relocations. It is most
  effective when there are DSOs that were not linked with -z defs (e.g.
  when static sanitizers runtime is used).


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Pull in r352826 from upstream lld trunk (by Fangrui Song):

  [ELF] Support --{,no-}allow-shlib-undefined

  Summary:
  In ld.bfd/gold, --no-allow-shlib-undefined is the default when
  linking an executable. This patch implements a check to error on
  undefined symbols in a shared object, if all of its DT_NEEDED entries
  are seen.

  Our approach resembles the one used in gold, achieves a good balance
  to be useful but not too smart (ld.bfd traces all DSOs and emulates
  the behavior of a dynamic linker to catch more cases).

  The error is issued based on the symbol table, different from
  undefined reference errors issued for relocations. It is most
  effective when there are DSOs that were not linked with -z defs (e.g.
  when static sanitizers runtime is used).


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