[zircon] [gn] Build Gigaboot
We support only the Clang build using the direct Windows target support.
The shenanigans to get it built with GCC are quite ugly and fragile.
Bug: BLD-325
Test: gn gen && ninja
Change-Id: I2d4acc6018d349fd1da534d3f7e0913e735079f7
diff --git a/zircon/BUILD.gn b/zircon/BUILD.gn
index 10dde62..749c503 100644
--- a/zircon/BUILD.gn
+++ b/zircon/BUILD.gn
@@ -101,5 +101,8 @@
"$zx/system/utest",
"$zx/third_party/uapp",
]
+ if (cpu == "x64") {
+ deps += [ "$zx/bootloader" ]
+ }
}
}
diff --git a/zircon/bootloader/BUILD.gn b/zircon/bootloader/BUILD.gn
new file mode 100644
index 0000000..4fcab9b
--- /dev/null
+++ b/zircon/bootloader/BUILD.gn
@@ -0,0 +1,80 @@
+# Copyright 2019 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("$zx/public/gn/toolchain/environment.gni")
+import("$zx/public/gn/toolchain/environment_redirect.gni")
+
+# Gigaboot gets its own toolchains to build EFI code.
+if (current_toolchain == default_toolchain) {
+ environment("efi") {
+ cpu = "x64"
+ os = "win"
+ globals = {
+ is_kernel = true
+ }
+ configs += standard_fuchsia_configs + [ ":efi_config" ]
+
+ # TODO: harmless, but just to match build.mk
+ configs -= [ "$zx/public/gn/config:default_frame_pointers" ]
+
+ # TODO: strip = true
+
+ # There isn't a GCC toolchain that supports the Windows target directly
+ # the way we use it.
+ exclude_variant_tags = [ "gcc" ]
+ }
+} else if (toolchain.environment == "efi") {
+ # This is the top config for all code in the efi_toolchain.
+ config("efi_config") {
+ configs = [
+ "$zx/kernel:standalone",
+ "$zx/public/gn/config:no_sanitizers",
+
+ # TODO: "$zx/kernel:warnings",
+ ]
+ include_dirs = [ "include" ]
+ cflags = [
+ "-std=c99",
+ "-fshort-wchar",
+ ]
+ if (current_cpu == "x64") {
+ cflags += [ "-mno-red-zone" ]
+ }
+ }
+
+ executable("bootloader") {
+ output_dir = root_out_dir
+ output_name = "boot${current_cpu}"
+ output_extension = "efi"
+ deps = [
+ "lib",
+ "src",
+ ]
+ ldflags = [
+ "-nostdlib",
+ "-Wl,/subsystem:efi_application",
+ "-Wl,/entry:efi_main",
+ ]
+
+ # TODO(mcgrathr): Temporary kludge for legacy Fuchsia GN build integration.
+ metadata = {
+ images = [
+ {
+ name = "bootloader"
+ type = "efi"
+ path = rebase_path("$root_out_dir/$output_name.$output_extension",
+ root_build_dir)
+ },
+ ]
+ }
+ }
+} else {
+ # In any other toolchain, just redirect to the proper toolchain.
+ environment_redirect("bootloader") {
+ environment_label = ":efi"
+ deps = [
+ ":bootloader",
+ ]
+ }
+}
diff --git a/zircon/bootloader/include/inttypes.h b/zircon/bootloader/include/inttypes.h
index 36ae92d..081e0b7 100644
--- a/zircon/bootloader/include/inttypes.h
+++ b/zircon/bootloader/include/inttypes.h
@@ -20,6 +20,8 @@
#ifdef __clang__
#define PRIx64 "llx"
+#define PRIu64 "llu"
#else
#define PRIx64 "lx"
+#define PRIu64 "lu"
#endif
diff --git a/zircon/bootloader/lib/BUILD.gn b/zircon/bootloader/lib/BUILD.gn
new file mode 100644
index 0000000..35a6692
--- /dev/null
+++ b/zircon/bootloader/lib/BUILD.gn
@@ -0,0 +1,20 @@
+# Copyright 2019 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+assert(toolchain.environment == "efi")
+
+source_set("lib") {
+ sources = [
+ "console-printf.c",
+ "ctype.c",
+ "efi/guids.c",
+ "inet.c",
+ "loadfile.c",
+ "printf.c",
+ "stdlib.c",
+ "string.c",
+ "strings.c",
+ "xefi.c",
+ ]
+}
diff --git a/zircon/bootloader/src/BUILD.gn b/zircon/bootloader/src/BUILD.gn
new file mode 100644
index 0000000..d44af0a
--- /dev/null
+++ b/zircon/bootloader/src/BUILD.gn
@@ -0,0 +1,25 @@
+# Copyright 2019 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+assert(toolchain.environment == "efi")
+
+source_set("src") {
+ sources = [
+ "cmdline.c",
+ "device_id.c",
+ "diskio.c",
+ "framebuffer.c",
+ "inet6.c",
+ "misc.c",
+ "netboot.c",
+ "netifc.c",
+ "osboot.c",
+ "pci.c",
+ "zircon.c",
+ ]
+ include_dirs = [ "." ]
+ deps = [
+ "$zx/system/ulib/tftp",
+ ]
+}
