From b148d78706df88875060cb76abae9aab8a06a5fa Mon Sep 17 00:00:00 2001
From: John Moon <quic_johmoo@quicinc.com>
Date: Thu, 27 Apr 2023 14:07:18 -0700
Subject: [PATCH] build: Add BUILD.bazel file

Currently, the dtc project builds with Make.

As some consumers of this project use Bazel, and eventually all of
AOSP will need to move to Bazel anyway, add a a Bazel build
definition.

Bug: 251879933
Change-Id: I62ea59ee306eda58b764df2a9e5f2f33778e4b5c
Signed-off-by: John Moon <quic_johmoo@quicinc.com>
---
 .gitignore  |   2 +
 BUILD.bazel | 129 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 WORKSPACE   |   0
 3 files changed, 131 insertions(+)
 create mode 100644 BUILD.bazel
 create mode 100644 WORKSPACE

diff --git a/.gitignore b/.gitignore
index d90656b..200ac36 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,5 @@ ncscope.*
 .eggs/
 build/
 dist/
+
+/bazel-*
diff --git a/BUILD.bazel b/BUILD.bazel
new file mode 100644
index 0000000..439621d
--- /dev/null
+++ b/BUILD.bazel
@@ -0,0 +1,129 @@
+cc_library(
+    name = "libfdt",
+    srcs = glob([
+        "libfdt/*.h",
+        "libfdt/*.c",
+    ]),
+    copts = [
+        "-Werror",
+        "-Wno-macro-redefined",
+        "-Wno-sign-compare",
+    ],
+    includes = ["libfdt"],
+)
+
+COPTS = [
+    "-Wall",
+    "-Werror",
+    "-Wno-sign-compare",
+    "-Wno-missing-field-initializers",
+    "-Wno-unused-parameter",
+]
+
+genrule(
+    name = "lexer",
+    srcs = [
+        "dtc-lexer.l",
+        ":parser",
+    ],
+    outs = ["dtc-lexer.lex.c"],
+    cmd = "lex -o$@ $(location dtc-lexer.l)",
+)
+
+genrule(
+    name = "parser",
+    srcs = ["dtc-parser.y"],
+    outs = [
+        "dtc-parser.c",
+        "dtc-parser.h",
+    ],
+    cmd = """
+      bison -b dtc-parser -d $(location dtc-parser.y)
+      cp ./*.c $(location dtc-parser.c)
+      cp ./*.h $(location dtc-parser.h)
+    """,
+)
+
+cc_library(
+    name = "dtc_gen",
+    srcs = [
+        ":lexer",
+        ":parser",
+    ],
+    hdrs = glob(["*.h"]),
+    copts = COPTS,
+    deps = [":libfdt"],
+)
+
+cc_binary(
+    name = "dtc",
+    srcs = [
+        "checks.c",
+        "data.c",
+        "dtc.c",
+        "flattree.c",
+        "fstree.c",
+        "livetree.c",
+        "srcpos.c",
+        "treesource.c",
+        "util.c",
+    ],
+    copts = COPTS,
+    defines = ["NO_YAML"],
+    deps = [
+        ":dtc_gen",
+        ":libfdt",
+    ],
+)
+
+cc_binary(
+    name = "fdtget",
+    srcs = [
+        "fdtget.c",
+        "util.c",
+        "util.h",
+        "version_non_gen.h",
+    ],
+    copts = COPTS,
+    defines = ["NO_YAML"],
+    deps = [":libfdt"],
+)
+
+cc_binary(
+    name = "fdtput",
+    srcs = [
+        "fdtput.c",
+        "util.c",
+        "util.h",
+        "version_non_gen.h",
+    ],
+    copts = COPTS,
+    defines = ["NO_YAML"],
+    deps = [":libfdt"],
+)
+
+cc_binary(
+    name = "fdtdump",
+    srcs = [
+        "fdtdump.c",
+        "util.c",
+        "util.h",
+        "version_non_gen.h",
+    ],
+    copts = COPTS,
+    defines = ["NO_YAML"],
+    deps = [":libfdt"],
+)
+
+cc_binary(
+    name = "fdtoverlay",
+    srcs = [
+        "fdtoverlay.c",
+        "util.c",
+        "util.h",
+        "version_non_gen.h",
+    ],
+    copts = COPTS,
+    defines = ["NO_YAML"],
+    deps = [":libfdt"],
+)
diff --git a/WORKSPACE b/WORKSPACE
new file mode 100644
index 0000000..e69de29