[libcxx] [llvm] Debug windows failures for localization changes (PR #114228)

Louis Dionne via llvm-commits llvm-commits at lists.llvm.org
Wed Oct 30 06:30:45 PDT 2024


https://github.com/ldionne updated https://github.com/llvm/llvm-project/pull/114228

>From 144286f0f6c21690b54d5472ff9e4939875c4aea Mon Sep 17 00:00:00 2001
From: Louis Dionne <ldionne.2 at gmail.com>
Date: Wed, 30 Oct 2024 09:26:24 -0400
Subject: [PATCH 1/4] WIP: original patch

---
 libcxx/include/__locale_dir/locale_base_api.h |   8 ++
 .../locale_base_api/bsd_locale_defaults.h     | 107 +++++++++++++++---
 .../locale_base_api/bsd_locale_fallbacks.h    |   4 +-
 libcxx/include/locale                         |  12 +-
 .../test/libcxx/clang_modules_include.gen.py  |   8 ++
 5 files changed, 113 insertions(+), 26 deletions(-)

diff --git a/libcxx/include/__locale_dir/locale_base_api.h b/libcxx/include/__locale_dir/locale_base_api.h
index b6c80255b4d199..64615b96b784f8 100644
--- a/libcxx/include/__locale_dir/locale_base_api.h
+++ b/libcxx/include/__locale_dir/locale_base_api.h
@@ -9,6 +9,8 @@
 #ifndef _LIBCPP___LOCALE_DIR_LOCALE_BASE_API_H
 #define _LIBCPP___LOCALE_DIR_LOCALE_BASE_API_H
 
+#include <__config>
+
 #if defined(_LIBCPP_MSVCRT_LIKE)
 #  include <__locale_dir/locale_base_api/win32.h>
 #elif defined(_AIX) || defined(__MVS__)
@@ -27,6 +29,12 @@
 #  include <__locale_dir/locale_base_api/freebsd.h>
 #endif
 
+#ifdef _LIBCPP_LOCALE__L_EXTENSIONS
+#  include <__locale_dir/locale_base_api/bsd_locale_defaults.h>
+#else
+#  include <__locale_dir/locale_base_api/bsd_locale_fallbacks.h>
+#endif
+
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
diff --git a/libcxx/include/__locale_dir/locale_base_api/bsd_locale_defaults.h b/libcxx/include/__locale_dir/locale_base_api/bsd_locale_defaults.h
index e88eb4fa41d7af..faf974df37e8f2 100644
--- a/libcxx/include/__locale_dir/locale_base_api/bsd_locale_defaults.h
+++ b/libcxx/include/__locale_dir/locale_base_api/bsd_locale_defaults.h
@@ -14,23 +14,102 @@
 #ifndef _LIBCPP___LOCALE_DIR_LOCALE_BASE_API_BSD_LOCALE_DEFAULTS_H
 #define _LIBCPP___LOCALE_DIR_LOCALE_BASE_API_BSD_LOCALE_DEFAULTS_H
 
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
+#  include <wchar.h>
+#endif
+
+// <xlocale.h> must come after the includes above since the functions it includes depend on
+// what headers have been included up to that point.
+#if defined(__APPLE__) || defined(__FreeBSD__)
+#  include <xlocale.h>
+#endif
+
+#include <__config>
+#include <__cstddef/size_t.h>
+#include <__std_mbstate_t.h>
+#include <__utility/forward.h>
+
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
 
-#define __libcpp_mb_cur_max_l(loc) MB_CUR_MAX_L(loc)
-#define __libcpp_btowc_l(ch, loc) btowc_l(ch, loc)
-#define __libcpp_wctob_l(wch, loc) wctob_l(wch, loc)
-#define __libcpp_wcsnrtombs_l(dst, src, nwc, len, ps, loc) wcsnrtombs_l(dst, src, nwc, len, ps, loc)
-#define __libcpp_wcrtomb_l(src, wc, ps, loc) wcrtomb_l(src, wc, ps, loc)
-#define __libcpp_mbsnrtowcs_l(dst, src, nms, len, ps, loc) mbsnrtowcs_l(dst, src, nms, len, ps, loc)
-#define __libcpp_mbrtowc_l(pwc, s, n, ps, l) mbrtowc_l(pwc, s, n, ps, l)
-#define __libcpp_mbtowc_l(pwc, pmb, max, l) mbtowc_l(pwc, pmb, max, l)
-#define __libcpp_mbrlen_l(s, n, ps, l) mbrlen_l(s, n, ps, l)
-#define __libcpp_localeconv_l(l) localeconv_l(l)
-#define __libcpp_mbsrtowcs_l(dest, src, len, ps, l) mbsrtowcs_l(dest, src, len, ps, l)
-#define __libcpp_snprintf_l(...) snprintf_l(__VA_ARGS__)
-#define __libcpp_asprintf_l(...) asprintf_l(__VA_ARGS__)
-#define __libcpp_sscanf_l(...) sscanf_l(__VA_ARGS__)
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+inline _LIBCPP_HIDE_FROM_ABI decltype(MB_CUR_MAX) __libcpp_mb_cur_max_l(locale_t __loc) { return MB_CUR_MAX_L(__loc); }
+
+#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
+inline _LIBCPP_HIDE_FROM_ABI wint_t __libcpp_btowc_l(int __c, locale_t __loc) { return ::btowc_l(__c, __loc); }
+
+inline _LIBCPP_HIDE_FROM_ABI int __libcpp_wctob_l(wint_t __c, locale_t __loc) { return ::wctob_l(__c, __loc); }
+
+inline _LIBCPP_HIDE_FROM_ABI size_t __libcpp_wcsnrtombs_l(
+    char* __dest, const wchar_t** __src, size_t __nwc, size_t __len, mbstate_t* __ps, locale_t __loc) {
+  return ::wcsnrtombs_l(__dest, __src, __nwc, __len, __ps, __loc);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI size_t __libcpp_wcrtomb_l(char* __s, wchar_t __wc, mbstate_t* __ps, locale_t __loc) {
+  return ::wcrtomb_l(__s, __wc, __ps, __loc);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI size_t __libcpp_mbsnrtowcs_l(
+    wchar_t* __dest, const char** __src, size_t __nms, size_t __len, mbstate_t* __ps, locale_t __loc) {
+  return ::mbsnrtowcs_l(__dest, __src, __nms, __len, __ps, __loc);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI size_t
+__libcpp_mbrtowc_l(wchar_t* __pwc, const char* __s, size_t __n, mbstate_t* __ps, locale_t __loc) {
+  return ::mbrtowc_l(__pwc, __s, __n, __ps, __loc);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI int __libcpp_mbtowc_l(wchar_t* __pwc, const char* __pmb, size_t __max, locale_t __loc) {
+  return ::mbtowc_l(__pwc, __pmb, __max, __loc);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI size_t __libcpp_mbrlen_l(const char* __s, size_t __n, mbstate_t* __ps, locale_t __loc) {
+  return ::mbrlen_l(__s, __n, __ps, __loc);
+}
+#endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
+
+inline _LIBCPP_HIDE_FROM_ABI lconv* __libcpp_localeconv_l(locale_t __loc) { return ::localeconv_l(__loc); }
+
+#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
+inline _LIBCPP_HIDE_FROM_ABI size_t
+__libcpp_mbsrtowcs_l(wchar_t* __dest, const char** __src, size_t __len, mbstate_t* __ps, locale_t __loc) {
+  return ::mbsrtowcs_l(__dest, __src, __len, __ps, __loc);
+}
+#endif
+
+template <class... _Args>
+_LIBCPP_HIDE_FROM_ABI int
+__libcpp_snprintf_l(char* __s, size_t __n, locale_t __loc, const char* __format, _Args&&... __args) {
+  _LIBCPP_DIAGNOSTIC_PUSH
+  _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
+  _LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
+  return ::snprintf_l(__s, __n, __loc, __format, std::forward<_Args>(__args)...);
+  _LIBCPP_DIAGNOSTIC_POP
+}
+
+template <class... _Args>
+_LIBCPP_HIDE_FROM_ABI int __libcpp_asprintf_l(char** __s, locale_t __loc, const char* __format, _Args&&... __args) {
+  _LIBCPP_DIAGNOSTIC_PUSH
+  _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
+  _LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
+  return ::asprintf_l(__s, __loc, __format, std::forward<_Args>(__args)...);
+  _LIBCPP_DIAGNOSTIC_POP
+}
+
+template <class... _Args>
+_LIBCPP_HIDE_FROM_ABI int __libcpp_sscanf_l(const char* __s, locale_t __loc, const char* __format, _Args&&... __args) {
+  _LIBCPP_DIAGNOSTIC_PUSH
+  _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
+  _LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wformat-nonliteral")
+  return ::sscanf_l(__s, __loc, __format, std::forward<_Args>(__args)...);
+  _LIBCPP_DIAGNOSTIC_POP
+}
+
+_LIBCPP_END_NAMESPACE_STD
 
 #endif // _LIBCPP___LOCALE_DIR_LOCALE_BASE_API_BSD_LOCALE_DEFAULTS_H
diff --git a/libcxx/include/__locale_dir/locale_base_api/bsd_locale_fallbacks.h b/libcxx/include/__locale_dir/locale_base_api/bsd_locale_fallbacks.h
index ae2db6ae70bebc..53336a35ffaf33 100644
--- a/libcxx/include/__locale_dir/locale_base_api/bsd_locale_fallbacks.h
+++ b/libcxx/include/__locale_dir/locale_base_api/bsd_locale_fallbacks.h
@@ -13,9 +13,11 @@
 #ifndef _LIBCPP___LOCALE_DIR_LOCALE_BASE_API_BSD_LOCALE_FALLBACKS_H
 #define _LIBCPP___LOCALE_DIR_LOCALE_BASE_API_BSD_LOCALE_FALLBACKS_H
 
+#include <locale.h>
+
 #include <__locale_dir/locale_guard.h>
-#include <cstdio>
 #include <stdarg.h>
+#include <stdio.h>
 #include <stdlib.h>
 
 #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
diff --git a/libcxx/include/locale b/libcxx/include/locale
index 782475ea7e0eb8..4706515b0a6c86 100644
--- a/libcxx/include/locale
+++ b/libcxx/include/locale
@@ -215,7 +215,7 @@ template <class charT> class messages_byname;
 #  include <streambuf>
 #  include <version>
 
-// TODO: Fix __bsd_locale_defaults.h
+// TODO: Properly qualify calls now that __bsd_locale_defaults.h defines functions instead of macros
 // NOLINTBEGIN(libcpp-robust-against-adl)
 
 #  if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
@@ -230,16 +230,6 @@ template <class charT> class messages_byname;
 #    define _LIBCPP_HAS_CATOPEN 0
 #  endif
 
-#  ifdef _LIBCPP_LOCALE__L_EXTENSIONS
-#    include <__locale_dir/locale_base_api/bsd_locale_defaults.h>
-#  else
-#    include <__locale_dir/locale_base_api/bsd_locale_fallbacks.h>
-#  endif
-
-#  if defined(__APPLE__) || defined(__FreeBSD__)
-#    include <xlocale.h>
-#  endif
-
 #  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #    pragma GCC system_header
 #  endif
diff --git a/libcxx/test/libcxx/clang_modules_include.gen.py b/libcxx/test/libcxx/clang_modules_include.gen.py
index bc028f2a0809aa..ffbdf4a1e3194e 100644
--- a/libcxx/test/libcxx/clang_modules_include.gen.py
+++ b/libcxx/test/libcxx/clang_modules_include.gen.py
@@ -24,6 +24,10 @@
 //--- {header}.compile.pass.cpp
 // RUN: %{{cxx}} %s %{{flags}} %{{compile_flags}} -fmodules -fcxx-modules -fmodules-cache-path=%t -fsyntax-only
 
+// Older macOS SDKs were not properly modularized, which causes issues with localization.
+// This feature should instead be based on the SDK version.
+// UNSUPPORTED: stdlib=system && target={{{{.+}}}}-apple-macosx13{{{{.*}}}}
+
 // GCC doesn't support -fcxx-modules
 // UNSUPPORTED: gcc
 
@@ -52,6 +56,10 @@
 
 // REQUIRES: clang-modules-build
 
+// Older macOS SDKs were not properly modularized, which causes issues with localization.
+// This feature should instead be based on the SDK version.
+// UNSUPPORTED: stdlib=system && target={{{{.+}}}}-apple-macosx13{{{{.*}}}}
+
 // GCC doesn't support -fcxx-modules
 // UNSUPPORTED: gcc
 

>From aade6a7ee0f292bd727e646ae53e22356a3e1eb1 Mon Sep 17 00:00:00 2001
From: Louis Dionne <ldionne.2 at gmail.com>
Date: Wed, 30 Oct 2024 09:27:35 -0400
Subject: [PATCH 2/4] Disable non-windows bots for testing

---
 .github/workflows/libcxx-build-and-test.yaml | 204 +------------------
 1 file changed, 8 insertions(+), 196 deletions(-)

diff --git a/.github/workflows/libcxx-build-and-test.yaml b/.github/workflows/libcxx-build-and-test.yaml
index 184fed2268e818..58427421a3739d 100644
--- a/.github/workflows/libcxx-build-and-test.yaml
+++ b/.github/workflows/libcxx-build-and-test.yaml
@@ -47,209 +47,21 @@ env:
 
 
 jobs:
-  stage1:
-    if: github.repository_owner == 'llvm'
-    runs-on: libcxx-runners-8-set
-    continue-on-error: false
-    strategy:
-      fail-fast: false
-      matrix:
-        config: [
-          'generic-cxx03',
-          'generic-cxx26',
-          'generic-modules'
-        ]
-        cc: [  'clang-19' ]
-        cxx: [ 'clang++-19' ]
-        include:
-          - config: 'generic-gcc'
-            cc: 'gcc-14'
-            cxx: 'g++-14'
-    steps:
-      - uses: actions/checkout at v4
-      - name: ${{ matrix.config }}.${{ matrix.cxx }}
-        run: libcxx/utils/ci/run-buildbot ${{ matrix.config }}
-        env:
-          CC: ${{ matrix.cc }}
-          CXX: ${{ matrix.cxx }}
-      - uses: actions/upload-artifact at 26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
-        if: always()
-        with:
-          name: ${{ matrix.config }}-${{ matrix.cxx }}-results
-          path: |
-            **/test-results.xml
-            **/*.abilist
-            **/CMakeError.log
-            **/CMakeOutput.log
-            **/crash_diagnostics/*
-  stage2:
-    if: github.repository_owner == 'llvm'
-    runs-on: libcxx-runners-8-set
-    needs: [ stage1 ]
-    continue-on-error: false
-    strategy:
-      fail-fast: false
-      matrix:
-        config: [
-          'generic-cxx11',
-          'generic-cxx14',
-          'generic-cxx17',
-          'generic-cxx20',
-          'generic-cxx23'
-        ]
-        cc: [ 'clang-19' ]
-        cxx: [ 'clang++-19' ]
-        include:
-          - config: 'generic-gcc-cxx11'
-            cc: 'gcc-14'
-            cxx: 'g++-14'
-          - config: 'generic-cxx23'
-            cc: 'clang-17'
-            cxx: 'clang++-17'
-          - config: 'generic-cxx26'
-            cc: 'clang-18'
-            cxx: 'clang++-18'
-    steps:
-      - uses: actions/checkout at v4
-      - name: ${{ matrix.config }}
-        run: libcxx/utils/ci/run-buildbot ${{ matrix.config }}
-        env:
-          CC: ${{ matrix.cc }}
-          CXX: ${{ matrix.cxx }}
-      - uses: actions/upload-artifact at 26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
-        if: always()  # Upload artifacts even if the build or test suite fails
-        with:
-          name: ${{ matrix.config }}-${{ matrix.cxx }}-results
-          path: |
-            **/test-results.xml
-            **/*.abilist
-            **/CMakeError.log
-            **/CMakeOutput.log
-            **/crash_diagnostics/*
-  stage3:
-    if: github.repository_owner == 'llvm'
-    needs: [ stage1, stage2 ]
-    continue-on-error: false
-    strategy:
-      fail-fast: false
-      max-parallel: 8
-      matrix:
-        config: [
-          'generic-abi-unstable',
-          'generic-hardening-mode-debug',
-          'generic-hardening-mode-extensive',
-          'generic-hardening-mode-fast',
-          'generic-hardening-mode-fast-with-abi-breaks',
-          'generic-merged',
-          'generic-modules-lsv',
-          'generic-no-exceptions',
-          'generic-no-experimental',
-          'generic-no-filesystem',
-          'generic-no-localization',
-          'generic-no-terminal',
-          'generic-no-random_device',
-          'generic-no-threads',
-          'generic-no-tzdb',
-          'generic-no-unicode',
-          'generic-no-wide-characters',
-          'generic-no-rtti',
-          'generic-optimized-speed',
-          'generic-static',
-          # TODO Find a better place for the benchmark and bootstrapping builds to live. They're either very expensive
-          # or don't provide much value since the benchmark run results are too noise on the bots.
-          'benchmarks',
-          'bootstrapping-build'
-        ]
-        machine: [ 'libcxx-runners-8-set' ]
-        include:
-        - config: 'generic-cxx26'
-          machine: libcxx-runners-8-set
-        - config: 'generic-asan'
-          machine: libcxx-runners-8-set
-        - config: 'generic-tsan'
-          machine: libcxx-runners-8-set
-        - config: 'generic-ubsan'
-          machine: libcxx-runners-8-set
-        # Use a larger machine for MSAN to avoid timeout and memory allocation issues.
-        - config: 'generic-msan'
-          machine: libcxx-runners-8-set
-    runs-on: ${{ matrix.machine }}
-    steps:
-      - uses: actions/checkout at v4
-      - name: ${{ matrix.config }}
-        run: libcxx/utils/ci/run-buildbot ${{ matrix.config }}
-        env:
-          CC: clang-19
-          CXX: clang++-19
-      - uses: actions/upload-artifact at 26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
-        if: always()
-        with:
-          name: ${{ matrix.config }}-results
-          path: |
-            **/test-results.xml
-            **/*.abilist
-            **/CMakeError.log
-            **/CMakeOutput.log
-            **/crash_diagnostics/*
-
-  macos:
-    needs: [ stage1 ]
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-        - config: generic-cxx03
-          os: macos-latest
-        - config: generic-cxx23
-          os: macos-latest
-        - config: generic-modules
-          os: macos-latest
-        - config: apple-configuration
-          os: macos-latest
-        - config: apple-system
-          os: macos-13
-        - config: apple-system-hardened
-          os: macos-13
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout at v4
-      - uses: maxim-lobanov/setup-xcode at v1
-        with:
-          xcode-version: 'latest'
-      - uses: seanmiddleditch/gha-setup-ninja at master
-      - name: Build and test
-        run: |
-          python3 -m venv .venv
-          source .venv/bin/activate
-          python -m pip install psutil
-          bash libcxx/utils/ci/run-buildbot ${{ matrix.config }}
-      - uses: actions/upload-artifact at 26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
-        if: always()  # Upload artifacts even if the build or test suite fails
-        with:
-          name: macos-${{ matrix.config }}-results
-          path: |
-            **/test-results.xml
-            **/*.abilist
-            **/CMakeError.log
-            **/CMakeOutput.log
-            **/crash_diagnostics/*
-
   windows:
     runs-on: windows-2022
-    needs: [ stage1 ]
     strategy:
       fail-fast: false
       matrix:
         include:
         - { config: clang-cl-dll, mingw: false }
-        - { config: clang-cl-static, mingw: false }
-        - { config: clang-cl-no-vcruntime, mingw: false }
-        - { config: clang-cl-debug, mingw: false }
-        - { config: clang-cl-static-crt, mingw: false }
-        - { config: mingw-dll, mingw: true }
-        - { config: mingw-static, mingw: true }
-        - { config: mingw-dll-i686, mingw: true }
-        - { config: mingw-incomplete-sysroot, mingw: true }
+        # - { config: clang-cl-static, mingw: false }
+        # - { config: clang-cl-no-vcruntime, mingw: false }
+        # - { config: clang-cl-debug, mingw: false }
+        # - { config: clang-cl-static-crt, mingw: false }
+        # - { config: mingw-dll, mingw: true }
+        # - { config: mingw-static, mingw: true }
+        # - { config: mingw-dll-i686, mingw: true }
+        # - { config: mingw-incomplete-sysroot, mingw: true }
     steps:
       - uses: actions/checkout at v4
       - name: Install dependencies

>From 8746ce1b1d60d5686c721f802e95d3fad7654d1c Mon Sep 17 00:00:00 2001
From: Louis Dionne <ldionne.2 at gmail.com>
Date: Wed, 30 Oct 2024 09:28:44 -0400
Subject: [PATCH 3/4] Run only one failing test

---
 libcxx/utils/ci/run-buildbot | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libcxx/utils/ci/run-buildbot b/libcxx/utils/ci/run-buildbot
index 0b72f8c4031031..8b1466445151af 100755
--- a/libcxx/utils/ci/run-buildbot
+++ b/libcxx/utils/ci/run-buildbot
@@ -700,8 +700,11 @@ clang-cl-dll)
     # anyway), thus just disable the experimental library. Remove this
     # setting when cmake and the test driver does the right thing automatically.
     generate-cmake-libcxx-win -DLIBCXX_TEST_PARAMS="enable_experimental=False"
-    step "Running the libc++ tests"
-    ${NINJA} -vC "${BUILD_DIR}" check-cxx
+    step "Building dependencies"
+    ${NINJA} -vC "${BUILD_DIR}" cxx-test-depends
+
+    step "Running tests"
+    ./libcxx/utils/libcxx-lit "${BUILD_DIR}" --show-all libcxx/test/std/input.output/stream.buffers/streambuf/streambuf.protected/streambuf.assign/assign.pass.cpp
 ;;
 clang-cl-static)
     clean

>From 0ff4e7ac127ac4fdb089c59155375dfa0e9167fd Mon Sep 17 00:00:00 2001
From: Louis Dionne <ldionne.2 at gmail.com>
Date: Wed, 30 Oct 2024 09:30:34 -0400
Subject: [PATCH 4/4] Disable buildkite pipeline

---
 libcxx/utils/ci/buildkite-pipeline.yml | 103 +------------------------
 1 file changed, 1 insertion(+), 102 deletions(-)

diff --git a/libcxx/utils/ci/buildkite-pipeline.yml b/libcxx/utils/ci/buildkite-pipeline.yml
index d1465721cf1648..1c5c7cad336768 100644
--- a/libcxx/utils/ci/buildkite-pipeline.yml
+++ b/libcxx/utils/ci/buildkite-pipeline.yml
@@ -40,109 +40,8 @@ steps:
 - group: ARM
   steps:
   - label: AArch64
-    command: libcxx/utils/ci/run-buildbot aarch64
+    command: true
     agents:
       queue: libcxx-builders-linaro-arm
       arch: aarch64
     <<: *common
-
-  - label: AArch64 -fno-exceptions
-    command: libcxx/utils/ci/run-buildbot aarch64-no-exceptions
-    agents:
-      queue: libcxx-builders-linaro-arm
-      arch: aarch64
-    <<: *common
-
-  - label: Armv8
-    command: libcxx/utils/ci/run-buildbot armv8
-    agents:
-      queue: libcxx-builders-linaro-arm
-      arch: armv8l
-    <<: *common
-
-  - label: Armv8 -fno-exceptions
-    command: libcxx/utils/ci/run-buildbot armv8-no-exceptions
-    agents:
-      queue: libcxx-builders-linaro-arm
-      arch: armv8l
-    <<: *common
-
-  - label: Armv7
-    command: libcxx/utils/ci/run-buildbot armv7
-    agents:
-      queue: libcxx-builders-linaro-arm
-      arch: armv8l
-    <<: *common
-
-  - label: Armv7 -fno-exceptions
-    command: libcxx/utils/ci/run-buildbot armv7-no-exceptions
-    agents:
-      queue: libcxx-builders-linaro-arm
-      arch: armv8l
-    <<: *common
-
-  - label: Armv7-M picolibc
-    command: libcxx/utils/ci/run-buildbot armv7m-picolibc
-    agents:
-      queue: libcxx-builders-linaro-arm
-      arch: aarch64
-    <<: *common
-
-  - label: Armv7-M picolibc -fno-exceptions
-    command: libcxx/utils/ci/run-buildbot armv7m-picolibc-no-exceptions
-    agents:
-      queue: libcxx-builders-linaro-arm
-      arch: aarch64
-    <<: *common
-
-- group: AIX
-  steps:
-  - label: AIX (32-bit)
-    command: libcxx/utils/ci/run-buildbot aix
-    env:
-      CC: clang
-      CXX: clang++
-      OBJECT_MODE: '32'
-    agents:
-      queue: libcxx-builders
-      os: aix
-    <<: *common
-
-  - label: AIX (64-bit)
-    command: libcxx/utils/ci/run-buildbot aix
-    env:
-      CC: clang
-      CXX: clang++
-      OBJECT_MODE: '64'
-    agents:
-      queue: libcxx-builders
-      os: aix
-    <<: *common
-
-- group: ':freebsd: FreeBSD'
-  steps:
-  - label: FreeBSD 13 amd64
-    command: libcxx/utils/ci/run-buildbot generic-cxx26
-    env:
-      CC: clang17
-      CXX: clang++17
-    agents:
-      queue: libcxx-builders
-      os: freebsd
-    <<: *common
-
-- group: ':android: Android'
-  steps:
-  - label: Android 5.0, x86 NDK
-    command: libcxx/utils/ci/run-buildbot android-ndk-21-def-x86
-    agents:
-      queue: libcxx-builders
-      os: android
-    <<: *common
-
-  - label: Android 13, x86_64 NDK
-    command: libcxx/utils/ci/run-buildbot android-ndk-33-goog-x86_64
-    agents:
-      queue: libcxx-builders
-      os: android
-    <<: *common



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