llvm-libc: Add Android specific files after initial importupstream

Third-Party Import of: https://github.com/llvm/llvm-project.git
Request Document: go/android3p
For CL Reviewers: go/android3p#cl-review
For Build Team: go/ab-third-party-imports
Test: mm && llvm-nm $(find $OUT -name llvmlibc.a) | grep -q bsearch
Bug: 321313756

Change-Id: Idb132fa258c008fe52965af46e5eed21c51bca54

5 files changed, 119 insertions, 0 deletions

diff --git a/Android.bp b/Android.bp
new file mode 100644
index 000000000000..2c8975115713
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,42 @@
+// https://ci.android.com/builds/latest/branches/aosp-build-tools/targets/linux/view/soong_build.html
+
+cc_library_static {
+    name: "llvmlibc",
+    visibility: [
+      "//bionic/libc",
+    ],
+    include_dirs: [
+      "external/llvm-libc",
+    ],
+    srcs: [
+      "src/stdlib/bsearch.cpp",
+    ],
+    cflags: [
+      // Necessary for non-namespaced exports.
+      "-DLIBC_COPT_PUBLIC_PACKAGING",
+      // Necessary to build.
+      "-DLIBC_NAMESPACE=llvmlibc",
+    ],
+    // No C++ runtime.
+    stl: "none",
+    // No crt_begin and crt_end.
+    nocrt: true,
+    // Needs to be unset from the default value in order to avoid creating a
+    // cyclic dependency between llvm-libc and bionic's libc.
+    system_shared_libs: [],
+
+    // Bionic's libc's dependencies must have these set, or the build will fail
+    // due to missing a "ramdisk", "vendor_ramdisk", and "recovery" variants.
+    native_bridge_supported: true,
+    ramdisk_available: true,
+    recovery_available: true,
+    vendor_ramdisk_available: true,
+
+    // Bionic's dependencies must also set this.
+    apex_available: [
+      "com.android.runtime",
+    ],
+
+    // When llvm-libc includes <stdlib.h>, use bionic's headers for these.
+    header_libs: ["libc_headers"],
+}
diff --git a/METADATA b/METADATA
new file mode 100644
index 000000000000..feef99606a48
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,19 @@
+name: "llvmlibc"
+description: "LLVM's libc"
+third_party {
+  url {
+    type: HOMEPAGE
+    value: "https://libc.llvm.org/"
+  }
+  url {
+    type: GIT
+    value: "https://github.com/llvm/llvm-project.git"
+  }
+  version: "30aa9fb4c1da33892a38f952fbdf6e7e45e5953a"
+  last_upgrade_date {
+    year: 2024
+    month: 1
+    day: 31
+  }
+  license_type: NOTICE
+}
diff --git a/MODULE_LICENSE_APACHE2 b/MODULE_LICENSE_APACHE2
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/MODULE_LICENSE_APACHE2
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 000000000000..2e8f086e19a6
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/system/core:main:/janitors/OWNERS
diff --git a/copy.bara.sky b/copy.bara.sky
new file mode 100644
index 000000000000..cacf3268f271
--- /dev/null
+++ b/copy.bara.sky
@@ -0,0 +1,57 @@
+core.workflow(
+    name = "default",
+    origin = git.origin(
+        url = "https://github.com/llvm/llvm-project.git",
+        ref = "main",
+    ),
+    origin_files = glob(
+        [
+            "libc/**",
+            "libc/LICENSE.TXT",
+        ],
+        # Exclude copying these files from upstream. Keep sorted.
+        exclude = [
+            "**/*.h.def",
+            "**/*.inc",
+            "**/*.md",
+            "**/*.txt",
+            "**/.clang-tidy",
+            "**/CMakeLists.txt",
+            "**/README.txt",
+            "libc/.gitignore",
+            "libc/AOR_v20.02/**",
+            "libc/benchmarks/**",
+            "libc/cmake/**",
+            "libc/config/**",
+            "libc/docs/**",
+            "libc/examples/**",
+            "libc/fuzzing/**",
+            "libc/spec/**",
+            "libc/startup/**",
+            "libc/utils/**",
+        ],
+    ),
+    destination = git.gerrit_destination(
+        url = "sso://googleplex-android/platform/external/llvm-libc",
+        #url = "https://googleplex-android.googlesource.com/platform/external/llvm-libc",
+        #url = "https://android.googlesource.com/platform/external/llvm-libc",
+        fetch = "master",
+    ),
+    destination_files = glob(
+        [
+            "**.cpp",
+            "**.h",
+            "LICENSE",
+        ],
+    ),
+    authoring = authoring.pass_thru(
+        "LLVM libc <llvm-libc@google.com>"
+    ),
+    # mode = 'ITERATIVE',
+    transformations = [
+          core.move("libc/LICENSE.TXT", "LICENSE"),
+          core.move("libc/include", "include"),
+          core.move("libc/src", "src"),
+          core.move("libc/test", "test"),
+    ],
+)