pw_allocator/cmake: Add CMake support

This change adds CMake support to pw_allocator module.

Change-Id: I8c89be25f165bce1e7c5aab1396c281b1e91a365
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/126630
Reviewed-by: Ewout van Bekkum <ewout@google.com>
Commit-Queue: Viktor Elizarov <elizarovv@google.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ac41fd2..ba70f09 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,6 +43,7 @@
   endif()
 endif()
 
+add_subdirectory(pw_allocator EXCLUDE_FROM_ALL)
 add_subdirectory(pw_assert EXCLUDE_FROM_ALL)
 add_subdirectory(pw_assert_basic EXCLUDE_FROM_ALL)
 add_subdirectory(pw_assert_log EXCLUDE_FROM_ALL)
diff --git a/pw_allocator/BUILD.gn b/pw_allocator/BUILD.gn
index 87161f9..f335199 100644
--- a/pw_allocator/BUILD.gn
+++ b/pw_allocator/BUILD.gn
@@ -90,13 +90,20 @@
 
 pw_test("block_test") {
   configs = [ ":enable_heap_poison" ]
-  deps = [ ":block" ]
+  deps = [
+    ":block",
+    dir_pw_span,
+  ]
   sources = [ "block_test.cc" ]
 }
 
 pw_test("freelist_test") {
   configs = [ ":enable_heap_poison" ]
-  deps = [ ":freelist" ]
+  deps = [
+    ":freelist",
+    dir_pw_span,
+    dir_pw_status,
+  ]
   sources = [ "freelist_test.cc" ]
 }
 
diff --git a/pw_allocator/CMakeLists.txt b/pw_allocator/CMakeLists.txt
new file mode 100644
index 0000000..8a4d7b4
--- /dev/null
+++ b/pw_allocator/CMakeLists.txt
@@ -0,0 +1,90 @@
+# Copyright 2023 The Pigweed Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+include($ENV{PW_ROOT}/pw_build/pigweed.cmake)
+
+pw_add_library(pw_allocator.block STATIC
+  HEADERS
+    public/pw_allocator/block.h
+  PUBLIC_INCLUDES
+    public
+  PUBLIC_DEPS
+    pw_assert
+    pw_span
+    pw_status
+  SOURCES
+    block.cc
+)
+
+pw_add_library(pw_allocator.freelist STATIC
+  HEADERS
+    public/pw_allocator/freelist.h
+  PUBLIC_INCLUDES
+    public
+  PUBLIC_DEPS
+    pw_containers.vector
+    pw_span
+    pw_status
+  SOURCES
+    freelist.cc
+)
+
+pw_add_library(pw_allocator.freelist_heap STATIC
+  HEADERS
+    public/pw_allocator/freelist_heap.h
+  PUBLIC_INCLUDES
+    public
+  PUBLIC_DEPS
+    pw_allocator.block
+    pw_allocator.freelist
+  PRIVATE_DEPS
+    pw_assert
+    pw_log
+    pw_span
+  SOURCES
+    freelist_heap.cc
+)
+
+pw_add_test(pw_allocator.block_test
+  SOURCES
+    block_test.cc
+  PRIVATE_DEPS
+    pw_allocator.block
+    pw_span
+  GROUPS
+    modules
+    pw_allocator
+)
+
+pw_add_test(pw_allocator.freelist_test
+  SOURCES
+    freelist_test.cc
+  PRIVATE_DEPS
+    pw_allocator.freelist
+    pw_span
+    pw_status
+  GROUPS
+    modules
+    pw_allocator
+)
+
+pw_add_test(pw_allocator.freelist_heap_test
+  SOURCES
+    freelist_heap_test.cc
+  PRIVATE_DEPS
+    pw_allocator.freelist_heap
+  GROUPS
+    modules
+    pw_allocator
+)