Adds aarch64_none_linux_gnu support (#49)

* Rebased from https://github.com/hexdae/bazel-arm-none-eabi/actions/runs/8789248662

* [AARCH64][LINUX] add test

* [AARCH64][LINUX] test on windows

* [AARCH64][LINUX] fix windows

---------

Co-authored-by: d-asnaghi <30296575+hexdae@users.noreply.github.com>

.github/workflows/ci.yml

@@ -29,6 +29,8 @@ jobs:
       USE_BAZEL_VERSION: "7.x"
     steps:
       - uses: actions/checkout@v2
+      - name: tests
+        run: bazel test //test:all
       - name: workspace
         working-directory: examples/workspace
         run: bazel test //:all
@@ -51,7 +53,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: BUILD
-        run: bazel --output_user_root=C:/bzl build //...
+        run: bazel --output_user_root=C:/bzl test //test:all
 
   remote-execution:
     name: Bazel Remote Execution

MODULE.bazel

@@ -2,38 +2,35 @@
 
 module(
     name = "toolchains_arm_gnu",
-    compatibility_level = 1,
     version = "1.0.0",
+    compatibility_level = 1,
 )
 
 bazel_dep(name = "platforms", version = "0.0.8")
 bazel_dep(name = "rules_cc", version = "0.0.9")
 
 # DEV ONLY (not needed for release)
-bazel_dep(name = "aspect_bazel_lib", dev_dependency = True, version = "2.0.0")
-bazel_dep(name = "bazel_skylib", dev_dependency = True, version = "1.5.0")
+bazel_dep(name = "aspect_bazel_lib", version = "2.0.0", dev_dependency = True)
+bazel_dep(name = "bazel_skylib", version = "1.5.0", dev_dependency = True)
 
 arm_toolchain = use_extension(
     "@toolchains_arm_gnu//:extensions.bzl",
     "arm_toolchain",
     dev_dependency = True,
 )
-
 arm_toolchain.arm_none_eabi()
-
 use_repo(arm_toolchain, "arm_none_eabi")
-
 arm_toolchain.arm_none_linux_gnueabihf()
-
 use_repo(arm_toolchain, "arm_none_linux_gnueabihf")
-
 arm_toolchain.aarch64_none_elf()
-
 use_repo(arm_toolchain, "aarch64_none_elf")
+arm_toolchain.aarch64_none_linux_gnu()
+use_repo(arm_toolchain, "aarch64_none_linux_gnu")
 
 register_toolchains(
     "//test/toolchains:all",
     "@aarch64_none_elf//toolchain:all",
+    "@aarch64_none_linux_gnu//toolchain:all",
     "@arm_none_eabi//toolchain:all",
     "@arm_none_linux_gnueabihf//toolchain:all",
     dev_dependency = True,

deps.bzl

@@ -1,9 +1,10 @@
 """deps.bzl"""
 
+load("@toolchains_arm_gnu//toolchain:toolchain.bzl", "tools")
+load("@toolchains_arm_gnu//toolchain/archives:aarch64_none_elf.bzl", "AARCH64_NONE_ELF")
+load("@toolchains_arm_gnu//toolchain/archives:aarch64_none_linux_gnu.bzl", "AARCH64_NONE_LINUX_GNU")
 load("@toolchains_arm_gnu//toolchain/archives:arm_none_eabi.bzl", "ARM_NONE_EABI")
 load("@toolchains_arm_gnu//toolchain/archives:arm_none_linux_gnueabihf.bzl", "ARM_NONE_LINUX_GNUEABIHF")
-load("@toolchains_arm_gnu//toolchain/archives:aarch64_none_elf.bzl", "AARCH64_NONE_ELF")
-load("@toolchains_arm_gnu//toolchain:toolchain.bzl", "tools")
 
 def _arm_gnu_cross_hosted_platform_specific_repo_impl(repository_ctx):
     """Defines a host-specific repository for the ARM GNU toolchain."""
@@ -148,7 +149,7 @@ def arm_none_linux_gnueabihf_deps(version = "13.2.1", archives = ARM_NONE_LINUX_
     )
 
 def aarch64_none_elf_deps(version = "13.2.1-1.1", archives = AARCH64_NONE_ELF):
-    """Workspace dependencies for the arm linux gcc toolchain
+    """Workspace dependencies for the arm gcc toolchain
 
     Args:
         version: The version of the toolchain to use. If None, the latest version is used.
@@ -160,3 +161,17 @@ def aarch64_none_elf_deps(version = "13.2.1-1.1", archives = AARCH64_NONE_ELF):
         version,
         archives,
     )
+
+def aarch64_none_linux_gnu_deps(version = "13.2.1", archives = AARCH64_NONE_LINUX_GNU):
+    """Workspace dependencies for the arm linux gcc toolchain
+
+    Args:
+        version: The version of the toolchain to use. If None, the latest version is used.
+        archives: A dictionary of the version to archive attributes.
+    """
+    toolchains_arm_gnu_deps(
+        "aarch64_none_linux_gnu",
+        "aarch64-none-linux-gnu",
+        version,
+        archives,
+    )

extensions.bzl

@@ -1,14 +1,25 @@
 """Module extension for toolchains"""
 
-load("@toolchains_arm_gnu//toolchain/archives:arm_none_eabi.bzl", "ARM_NONE_EABI")
-load("@toolchains_arm_gnu//toolchain/archives:arm_none_linux_gnueabihf.bzl", "ARM_NONE_LINUX_GNUEABIHF")
-load("@toolchains_arm_gnu//toolchain/archives:aarch64_none_elf.bzl", "AARCH64_NONE_ELF")
 load(
     "@toolchains_arm_gnu//:deps.bzl",
     "aarch64_none_elf_deps",
+    "aarch64_none_linux_gnu_deps",
     "arm_none_eabi_deps",
     "arm_none_linux_gnueabihf_deps",
 )
+load("@toolchains_arm_gnu//toolchain/archives:aarch64_none_elf.bzl", "AARCH64_NONE_ELF")
+load(
+    "@toolchains_arm_gnu//toolchain/archives:aarch64_none_linux_gnu.bzl",
+    "AARCH64_NONE_LINUX_GNU",
+)
+load(
+    "@toolchains_arm_gnu//toolchain/archives:arm_none_eabi.bzl",
+    "ARM_NONE_EABI",
+)
+load(
+    "@toolchains_arm_gnu//toolchain/archives:arm_none_linux_gnueabihf.bzl",
+    "ARM_NONE_LINUX_GNUEABIHF",
+)
 
 def _semver(version):
     """Parse a semantic version string into a list of integers."""
@@ -75,6 +86,10 @@ def _arm_toolchain_impl(ctx):
             tag = lambda mod: mod.tags.aarch64_none_elf,
             deps = aarch64_none_elf_deps,
         ),
+        _module_toolchain(
+            tag = lambda mod: mod.tags.aarch64_none_linux_gnu,
+            deps = aarch64_none_linux_gnu_deps,
+        ),
     ]
 
     for toolchain in available_toolchains:
@@ -95,5 +110,8 @@ arm_toolchain = module_extension(
         "aarch64_none_elf": tag_class(attrs = {
             "version": attr.string(default = _max_version(AARCH64_NONE_ELF.keys())),
         }),
+        "aarch64_none_linux_gnu": tag_class(attrs = {
+            "version": attr.string(default = _max_version(AARCH64_NONE_LINUX_GNU.keys())),
+        }),
     },
 )

test/BUILD

@@ -5,6 +5,11 @@ build_test(
     targets = ["//test/aarch64-none-elf:hex"],
 )
 
+build_test(
+    name = "aarch64_none_linux_gnu",
+    targets = ["//test/aarch64-none-linux-gnu:hex"],
+)
+
 build_test(
     name = "arm_none_eabi",
     targets = ["//test/arm-none-eabi:hex"],

test/aarch64-none-linux-gnu/BUILD

@@ -0,0 +1,59 @@
+# project/BUILD.bazel
+
+load("@aspect_bazel_lib//lib:transitions.bzl", "platform_transition_filegroup")
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
+
+platform(
+    name = "aarch64_none_linux_gnu",
+    constraint_values = [
+        "@platforms//cpu:aarch64",
+        "@platforms//os:linux",
+    ],
+)
+
+cc_library(
+    name = "arm_library",
+    srcs = ["library.cpp"],
+    hdrs = ["library.h"],
+    copts = [
+        "-mcpu=cortex-a53",
+    ],
+    includes = ["includes"],
+    target_compatible_with = [
+        "@platforms//cpu:aarch64",
+        "@platforms//os:linux",
+    ],
+)
+
+cc_binary(
+    name = "arm_elf",
+    srcs = ["main.cpp"],
+    copts = [
+        "-mcpu=cortex-a53",
+    ],
+    linkopts = [
+        "-nostartfiles",
+        "-Wl,--entry,main",
+    ],
+    deps = [":arm_library"],
+)
+
+platform_transition_filegroup(
+    name = "elf",
+    srcs = [":arm_elf"],
+    target_compatible_with = select({
+        "@platforms//os:linux": ["@platforms//cpu:x86_64"],  # linux x86 (no arm)
+        "@platforms//os:windows": ["@platforms//cpu:x86_64"],  # windows
+        "//conditions:default": ["@platforms//:incompatible"],
+    }),
+    target_platform = ":aarch64_none_linux_gnu",
+)
+
+genrule(
+    name = "hex",
+    srcs = [":elf"],
+    outs = ["mock.hex"],
+    cmd = "$(execpath @aarch64_none_linux_gnu//:objcopy) -O ihex $< $@",
+    tools = ["@aarch64_none_linux_gnu//:objcopy"],
+    visibility = ["//visibility:public"],
+)

test/aarch64-none-linux-gnu/library.cpp

@@ -0,0 +1,15 @@
+#include "library.h"
+#include <vector>
+
+uint16_t baz(uint8_t a) { return a * 2; }
+
+uint32_t foo() {
+    static constexpr int k = 5;
+    return baz(k);
+}
+
+uint16_t foobaz() {
+    std::vector<uint8_t> vec(10);
+    vec.push_back(1);
+    return vec[0];
+}