Merge llvm-project release/19.x llvmorg-19.1.4-0-gaadaa00de76e

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.4-0-gaadaa00de

Merge llvm-project release/19.x llvmorg-19.1.4-0-gaadaa00de76e

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.4-0-gaadaa00de76e,
a.k.a. 19.1.4 release.

PR: 280562
MFC after: 1 month

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Merge llvm-project release/19.x llvmorg-19.1.1-0-gd401987fe349

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.1-0-gd401987fe

Merge llvm-project release/19.x llvmorg-19.1.1-0-gd401987fe349

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.1-0-gd401987fe349,
a.k.a. 19.1.1 release.

PR: 280562
MFC after: 1 month

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Merge llvm-project release/19.x llvmorg-19.1.0-rc4-0-g0c641568515a

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.0-rc4-0-g0

Merge llvm-project release/19.x llvmorg-19.1.0-rc4-0-g0c641568515a

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.0-rc4-0-g0c641568515a.

PR: 280562
MFC after: 1 month

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Merge llvm-project release/19.x llvmorg-19.1.0-rc3-0-g437434df21d8

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.0-rc3-0-g4

Merge llvm-project release/19.x llvmorg-19.1.0-rc3-0-g437434df21d8

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.0-rc3-0-g437434df21d8.

PR: 280562
MFC after: 1 month

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Merge llvm-project release/19.x llvmorg-19.1.0-rc2-0-gd033ae172d1c

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.0-rc2-0-gd

Merge llvm-project release/19.x llvmorg-19.1.0-rc2-0-gd033ae172d1c

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project release/19.x llvmorg-19.1.0-rc2-0-gd033ae172d1c.

PR: 280562
MFC after: 1 month

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Merge llvm-project main llvmorg-19-init-18630-gf2ccf80136a0

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-19-init-18630-gf2ccf80136a0, t

Merge llvm-project main llvmorg-19-init-18630-gf2ccf80136a0

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-19-init-18630-gf2ccf80136a0, the
last commit before the upstream release/19.x branch was created.

PR: 280562
MFC after: 1 month

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Merge llvm-project main llvmorg-18-init-16003-gfc5f51cf5af4

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-16003-gfc5f51cf5af4.

Merge llvm-project main llvmorg-18-init-16003-gfc5f51cf5af4

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-16003-gfc5f51cf5af4.

PR: 276104
MFC after: 1 month

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Merge llvm-project main llvmorg-18-init-15088-gd14ee76181fb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-15088-gd14ee76181fb.

Merge llvm-project main llvmorg-18-init-15088-gd14ee76181fb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-15088-gd14ee76181fb.

PR: 276104
MFC after: 1 month

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Merge llvm-project main llvmorg-17-init-19304-gd0b54bb50e51

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-17-init-19304-gd0b54bb50e51, t

Merge llvm-project main llvmorg-17-init-19304-gd0b54bb50e51

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-17-init-19304-gd0b54bb50e51, the
last commit before the upstream release/17.x branch was created.

PR: 273753
MFC after: 1 month

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compiler-rt: avoid segfaults when re-exec'ing with ASLR

After 930a7c2ac67e ("compiler-rt: re-exec with ASLR disabled when
necessary") and 96fe7c8ab0f6 ("compiler-rt: support ReExec() on
FreeBSD"), b

compiler-rt: avoid segfaults when re-exec'ing with ASLR

After 930a7c2ac67e ("compiler-rt: re-exec with ASLR disabled when
necessary") and 96fe7c8ab0f6 ("compiler-rt: support ReExec() on
FreeBSD"), binaries linked against the sanitizer libraries may segfault
due to procctl(2) being intercepted. Instead, the non-intercepted
internal_procctl() should be called.

Similarly, the ReExec() function that re-executes the binary after
turning off ASLR should not call elf_aux_info(3) and realpath(3), since
these will also be intercepted. Instead, loop directly over the elf aux
info vector to find the executable path, and avoid calling realpath(3)
since it is actually unwanted for this use case.

Fixes: 930a7c2ac67e, 96fe7c8ab0f6
MFC after: 3 days

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Merge llvm-project main llvmorg-16-init-18548-gb0daacf58f41

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-16-init-18548-gb0daacf58f41.

PR: 271047
MFC af

Merge llvm-project main llvmorg-16-init-18548-gb0daacf58f41

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-16-init-18548-gb0daacf58f41.

PR: 271047
MFC after: 1 month

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Merge llvm-project main llvmorg-15-init-17485-ga3e38b4a206b

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-17485-ga3e38b4a206b.

PR: 265425
MFC af

Merge llvm-project main llvmorg-15-init-17485-ga3e38b4a206b

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-17485-ga3e38b4a206b.

PR: 265425
MFC after: 2 weeks

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Merge llvm-project main llvmorg-15-init-16436-g18a6ab5b8d1f

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-16436-g18a6ab5b8d1f.

PR: 265425
MFC af

Merge llvm-project main llvmorg-15-init-16436-g18a6ab5b8d1f

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-16436-g18a6ab5b8d1f.

PR: 265425
MFC after: 2 weeks

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Merge llvm-project main llvmorg-15-init-15358-g53dc0f10787

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-15358-g53dc0f10787.

PR: 265425
MFC afte

Merge llvm-project main llvmorg-15-init-15358-g53dc0f10787

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-15358-g53dc0f10787.

PR: 265425
MFC after: 2 weeks

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powerpc: enable supported sanitizers on powerpc64*

1. Merge LLVM's 315d792130258a9b7250494be8d002ebb427b08f, adding support
for FreeBSD/powerpc64*.
2. Add sanitizer list to lib/libclang_rt/Makefile,

powerpc: enable supported sanitizers on powerpc64*

1. Merge LLVM's 315d792130258a9b7250494be8d002ebb427b08f, adding support
for FreeBSD/powerpc64*.
2. Add sanitizer list to lib/libclang_rt/Makefile, taken from the list of
libraries that llvm-devel port builds.
3. powerpc64le supports the same sanitizers that powerpc64, but powerpc64le
also supports xray* sanitizers.
4. lib/libclang_rt/xray/Makefile hardcodes amd64-specific files, so that needs
to be conditionalized.
5. Sanitizers are not enabled for powerpc, because powerpc supports only
builtins and profile.

Reviewed by: dim
Differential Revision: https://reviews.freebsd.org/D35228
Relnotes: yes
MFC after: 3 days

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Merge llvm-project release/14.x llvmorg-14.0.0-rc1-74-g4dc3cb8e3255

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.0-rc1-74-g4dc3cb8e3255.

PR: 26174

Merge llvm-project release/14.x llvmorg-14.0.0-rc1-74-g4dc3cb8e3255

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.0-rc1-74-g4dc3cb8e3255.

PR: 261742
MFC after: 2 weeks

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Merge llvm-project main llvmorg-14-init-13186-g0c553cc1af2e

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-13186-g0c553cc1af2e.

PR: 261742
MFC af

Merge llvm-project main llvmorg-14-init-13186-g0c553cc1af2e

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-13186-g0c553cc1af2e.

PR: 261742
MFC after: 2 weeks

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Merge llvm-project main llvmorg-14-init-11187-g222442ec2d71

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-11187-g222442ec2d71.

PR: 261742
MFC af

Merge llvm-project main llvmorg-14-init-11187-g222442ec2d71

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-11187-g222442ec2d71.

PR: 261742
MFC after: 2 weeks

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Merge llvm-project main llvmorg-14-init-10186-gff7f2cfa959b

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10186-gff7f2cfa959b.

PR: 261742
MFC af

Merge llvm-project main llvmorg-14-init-10186-gff7f2cfa959b

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10186-gff7f2cfa959b.

PR: 261742
MFC after: 2 weeks

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ASAN: reduce verbosity

When running binaries compiled with libasan in PIE and with ALSR on,
the previous code always print the WARNING message, the new code only
printed it if the run is made with t

ASAN: reduce verbosity

When running binaries compiled with libasan in PIE and with ALSR on,
the previous code always print the WARNING message, the new code only
printed it if the run is made with the right verbosity

Before this change, many unit test will always fail because of the extra
message which is printed

Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D35055
MFC after: 2 weeks

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riscv: actually enable sanitizers

1. Backport https://github.com/llvm/llvm-project/commit/b475ce39e8b1de3a70ea242473f136a567be46e3.
2. Enable libclang_rt for riscv.

Previous commit missed it.

MFC

riscv: actually enable sanitizers

1. Backport https://github.com/llvm/llvm-project/commit/b475ce39e8b1de3a70ea242473f136a567be46e3.
2. Enable libclang_rt for riscv.

Previous commit missed it.

MFC after: 3 days
Reviewed by: dim
Differential Revision: https://reviews.freebsd.org/D34543

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compiler-rt: re-exec with ASLR disabled when necessary

Some sanitizers (at least msan) currently require ASLR to be disabled.
When we detect that ASLR is enabled, re-exec with it disabled rather
tha

compiler-rt: re-exec with ASLR disabled when necessary

Some sanitizers (at least msan) currently require ASLR to be disabled.
When we detect that ASLR is enabled, re-exec with it disabled rather
than exiting with an error. See LLVM GitHub issue 53256 for more
detail: https://github.com/llvm/llvm-project/issues/53256

No objection: dim
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33934

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sanitizers: Improve FreeBSD ASLR detection

The kern.elf64.aslr.pie_enable and kern.elf32.aslr.pie_enable sysctls
control the default setting for PIE binary address randomization, but
it is possible

sanitizers: Improve FreeBSD ASLR detection

The kern.elf64.aslr.pie_enable and kern.elf32.aslr.pie_enable sysctls
control the default setting for PIE binary address randomization, but
it is possible to enable or disable ASLR on a per-process basis. Use
procctl(2) to query whether ASLR is enabled.

(Note that with ASLR enabled but sysctl kern.elf64.aslr.pie_enable=0
a PIE binary will in effect have randomization disabled, and be
functional with msan. This is not intended as as a user-facing control
though. The user can use proccontrol(1) to disable aslr for the
process.)

Approved by: dim
Obtained from: LLVM 64de0064f315f57044294879d9ff4eacb454d45b
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33933

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Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit bef

Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.

PR: 258209
MFC after: 2 weeks

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Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit bef

Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.

PR: 255570
MFC after: 6 weeks

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