platforms: mark aliases deprecated.

Redirect users to use the central definition at
@platforms. These targets are pending deletion.

Test: TH
Bug: 329305827
Change-Id: I6fe60d29930cda749748b75de8c1e9ced437454f

4 files changed, 42 insertions, 32 deletions

diff --git a/platforms/arch/BUILD b/platforms/arch/BUILD
index 56ba348..98938f9 100644
--- a/platforms/arch/BUILD
+++ b/platforms/arch/BUILD
@@ -9,21 +9,25 @@ package(
 alias(
     name = "arm",
     actual = "@platforms//cpu:arm",
+    deprecation = "Use @platforms//cpu:arm directly.",
 )
 
 alias(
     name = "arm64",
     actual = "@platforms//cpu:arm64",
+    deprecation = "Use @platforms//cpu:arm64 directly.",
 )
 
 alias(
     name = "riscv64",
     actual = "@platforms//cpu:riscv64",
+    deprecation = "Use @platforms//cpu:riscv64 directly.",
 )
 
 alias(
     name = "x86",
     actual = "@platforms//cpu:x86_32",
+    deprecation = "Use @platforms//cpu:x86_32 directly.",
 )
 
 # Alias to the local_jdk's toolchain constraint to make local_jdk resolve
@@ -31,6 +35,7 @@ alias(
 alias(
     name = "x86_64",
     actual = "@platforms//cpu:x86_64",
+    deprecation = "Use @platforms//cpu:x86_64 directly.",
 )
 
 constraint_setting(
diff --git a/platforms/constants.bzl b/platforms/constants.bzl
index 64e80fc..8eb05c5 100644
--- a/platforms/constants.bzl
+++ b/platforms/constants.bzl
@@ -5,45 +5,45 @@
 # here.
 host_platforms = {
     "linux_x86": [
-        "@//build/bazel_common_rules/platforms/arch:x86",
-        "@//build/bazel_common_rules/platforms/os:linux",
+        "@platforms//cpu:x86_32",
+        "@platforms//os:linux",
     ],
     "linux_x86_64": [
-        "@//build/bazel_common_rules/platforms/arch:x86_64",
-        "@//build/bazel_common_rules/platforms/os:linux",
+        "@platforms//cpu:x86_64",
+        "@platforms//os:linux",
     ],
     "linux_musl_x86": [
-        "@//build/bazel_common_rules/platforms/arch:x86",
+        "@platforms//cpu:x86_32",
         "@//build/bazel_common_rules/platforms/os:linux_musl",
     ],
     "linux_musl_x86_64": [
-        "@//build/bazel_common_rules/platforms/arch:x86_64",
+        "@platforms//cpu:x86_64",
         "@//build/bazel_common_rules/platforms/os:linux_musl",
     ],
     # linux_bionic is the OS for the Linux kernel plus the Bionic libc runtime,
     # but without the rest of Android.
     "linux_bionic_arm64": [
-        "@//build/bazel_common_rules/platforms/arch:arm64",
+        "@platforms//cpu:arm64",
         "@//build/bazel_common_rules/platforms/os:linux_bionic",
     ],
     "linux_bionic_x86_64": [
-        "@//build/bazel_common_rules/platforms/arch:x86_64",
+        "@platforms//cpu:x86_64",
         "@//build/bazel_common_rules/platforms/os:linux_bionic",
     ],
     "darwin_arm64": [
-        "@//build/bazel_common_rules/platforms/arch:arm64",
-        "@//build/bazel_common_rules/platforms/os:darwin",
+        "@platforms//cpu:arm64",
+        "@platforms//os:macos",
     ],
     "darwin_x86_64": [
-        "@//build/bazel_common_rules/platforms/arch:x86_64",
-        "@//build/bazel_common_rules/platforms/os:darwin",
+        "@platforms//cpu:x86_64",
+        "@platforms//os:macos",
     ],
     "windows_x86": [
-        "@//build/bazel_common_rules/platforms/arch:x86",
-        "@//build/bazel_common_rules/platforms/os:windows",
+        "@platforms//cpu:x86_32",
+        "@platforms//os:windows",
     ],
     "windows_x86_64": [
-        "@//build/bazel_common_rules/platforms/arch:x86_64",
-        "@//build/bazel_common_rules/platforms/os:windows",
+        "@platforms//cpu:x86_64",
+        "@platforms//os:windows",
     ],
 }
diff --git a/platforms/os/BUILD b/platforms/os/BUILD
index 9b0464e..88fbf0a 100644
--- a/platforms/os/BUILD
+++ b/platforms/os/BUILD
@@ -11,6 +11,7 @@ package(
 alias(
     name = "android",
     actual = "@platforms//os:android",
+    deprecation = "Use @platforms//os:android directly.",
 )
 
 config_setting(
@@ -25,11 +26,13 @@ config_setting(
 alias(
     name = "linux",
     actual = "@platforms//os:linux",
+    deprecation = "Use @platforms//os:linux directly.",
 )
 
 alias(
     name = "linux_glibc",
     actual = "@platforms//os:linux",
+    deprecation = "Use @platforms//os:linux directly.",
 )
 
 constraint_value(
@@ -52,11 +55,13 @@ config_setting(
 alias(
     name = "windows",
     actual = "@platforms//os:windows",
+    deprecation = "Use @platforms//os:windows directly.",
 )
 
 alias(
     name = "darwin",
     actual = "@platforms//os:macos",
+    deprecation = "Use @platforms//os:macos directly.",
 )
 
 selects.config_setting_group(
diff --git a/platforms/os_arch/BUILD.bazel b/platforms/os_arch/BUILD.bazel
index 56360f0..21b6a81 100644
--- a/platforms/os_arch/BUILD.bazel
+++ b/platforms/os_arch/BUILD.bazel
@@ -3,40 +3,40 @@ load("//build/bazel_common_rules/platforms:constants.bzl", "host_platforms")
 config_setting(
     name = "android_arm",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:arm",
-        "//build/bazel_common_rules/platforms/os:android",
+        "@platforms//cpu:arm",
+        "@platforms//os:android",
     ],
 )
 
 config_setting(
     name = "android_arm64",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:arm64",
-        "//build/bazel_common_rules/platforms/os:android",
+        "@platforms//cpu:arm64",
+        "@platforms//os:android",
     ],
 )
 
 config_setting(
     name = "android_riscv64",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:riscv64",
-        "//build/bazel_common_rules/platforms/os:android",
+        "@platforms//cpu:riscv64",
+        "@platforms//os:android",
     ],
 )
 
 config_setting(
     name = "android_x86",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:x86",
-        "//build/bazel_common_rules/platforms/os:android",
+        "@platforms//cpu:x86_32",
+        "@platforms//os:android",
     ],
 )
 
 config_setting(
     name = "android_x86_64",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:x86_64",
-        "//build/bazel_common_rules/platforms/os:android",
+        "@platforms//cpu:x86_64",
+        "@platforms//os:android",
     ],
 )
 
@@ -52,23 +52,23 @@ config_setting(
 config_setting(
     name = "linux_glibc_x86",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:x86",
-        "//build/bazel_common_rules/platforms/os:linux_glibc",
+        "@platforms//cpu:x86_32",
+        "@platforms//os:linux",
     ],
 )
 
 config_setting(
     name = "linux_glibc_x86_64",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:x86_64",
-        "//build/bazel_common_rules/platforms/os:linux_glibc",
+        "@platforms//cpu:x86_64",
+        "@platforms//os:linux",
     ],
 )
 
 config_setting(
     name = "linux_musl_arm",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:arm",
+        "@platforms//cpu:arm",
         "//build/bazel_common_rules/platforms/os:linux_musl",
     ],
 )
@@ -76,7 +76,7 @@ config_setting(
 config_setting(
     name = "linux_musl_arm64",
     constraint_values = [
-        "//build/bazel_common_rules/platforms/arch:arm64",
+        "@platforms//cpu:arm64",
         "//build/bazel_common_rules/platforms/os:linux_musl",
     ],
 )