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menv.ck
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/*++
Copyright (c) 2017 Minoca Corp.
This file is licensed under the terms of the GNU General Public License
version 3. Alternative licensing terms are available. Contact
info@minocacorp.com for details. See the LICENSE file at the root of this
project for complete licensing information.
Module Name:
env.ck
Abstract:
This build module contains the environment and functions used throughout
the Minoca OS build.
Author:
Evan Green 1-Feb-2017
Environment:
Build
--*/
//
// -------------------------------------------------------------------- Imports
//
from mingen import config;
from os import getenv, basename;
//
// -------------------------------------------------------------------- Globals
//
var mconfig;
//
// ------------------------------------------------------------------ Functions
//
function
initListFromEnvironment (
name,
default
)
/*++
Routine Description:
This routine gets an environment variable. It either returns that
environment variable wrapped in a list, or the given default.
Arguments:
name - Supplies the name of the environment variable.
default - Supplies the default value to return if not set.
Return Value:
Returns eithe the provided default or has the contents of the environment
variable wrapped in a list.
--*/
{
var value = getenv(name);
if (value != null) {
return [value];
}
return default;
}
function
getTools (
)
/*++
Routine Description:
This routine is called as part of setupEnv, at the end. It returns the
basic set of tools used by the environment.
Arguments:
None.
Return Value:
Returns a list of the basic tools used in the environment.
--*/
{
var buildCflagsLine = "$BUILD_BASE_CPPFLAGS $CPPFLAGS " +
"$BUILD_BASE_CFLAGS $CFLAGS -MMD -MF $OUT.d ";
var buildAsflagsLine = buildCflagsLine +
"$BUILD_BASE_ASFLAGS $ASFLAGS ";
var buildLdflagsLine = "$BUILD_BASE_LDFLAGS $LDFLAGS ";
var cflagsLine = "$BASE_CPPFLAGS $CPPFLAGS $BASE_CFLAGS $CFLAGS "
"-MMD -MF $OUT.d ";
var asflagsLine = cflagsLine + "$BASE_ASFLAGS $ASFLAGS ";
var entries;
var ldflagsLine = "-Wl,-Map=$OUT.map $BASE_LDFLAGS $LDFLAGS ";
var symlinkCommand = "ln -sf $SYMLINK_IN $OUT";
var buildLdLine = "$BUILD_CC " + buildLdflagsLine +
"-o $OUT $IN -Bdynamic $DYNLIBS";
var tools;
if (mconfig.build_os == "Windows") {
symlinkCommand = "cp $IN $OUT";
}
//
// On Mac OS there shouldn't be a -Bdynamic flag to indicate the start of
// the dynamic libraries section.
//
if (mconfig.build_os == "Darwin") {
buildLdLine = "$BUILD_CC " + buildLdflagsLine +
"-o $OUT $IN $DYNLIBS";
//
// Create a .map file (except on Mac, which doesn't support it).
//
} else {
buildLdflagsLine = "-Wl,-Map=$OUT.map " + buildLdflagsLine;
}
//
// Define the tools used.
//
tools = [
//
// C compiler for target binaries.
//
{
"type": "tool",
"name": "cc",
"command": "$CC " + cflagsLine + "-c -o $OUT $IN",
"description": "Compiling - $IN",
"depsformat": "gcc",
"depfile": "$OUT.d"
},
//
// C++ compiler for target binaries.
//
{
"type": "tool",
"name": "cxx",
"command": "$CXX " + cflagsLine + "-c -o $OUT $IN",
"description": "Compiling - $IN",
"depsformat": "gcc",
"depfile": "$OUT.d"
},
//
// Linker for target binaries.
//
{
"type": "tool",
"name": "ld",
"command": "$CC " + ldflagsLine + "-o $OUT $IN -Bdynamic $DYNLIBS",
"description": "Linking - $OUT",
},
//
// Static archiver for target binaries.
//
{
"type": "tool",
"name": "ar",
"command": "$AR rcs $OUT $IN",
"description": "Building Library - $OUT",
},
//
// Assembler for target binaries.
//
{
"type": "tool",
"name": "as",
"command": "$CC " + asflagsLine + "-c -o $OUT $IN",
"description": "Assembling - $IN",
"depsformat": "gcc",
"depfile": "$OUT.d"
},
//
// Objcopy for target binaries.
//
{
"type": "tool",
"name": "objcopy",
"command": "$SHELL -c \"cd `dirname $IN` && "
"$OBJCOPY $OBJCOPY_FLAGS `basename $IN` $OUT\"",
"description": "Objectifying - $IN"
},
//
// Strip for target binaries.
//
{
"type": "tool",
"name": "strip",
"command": "$STRIP $STRIP_FLAGS -o $OUT $IN",
"description": "Stripping - $OUT",
},
//
// C compiler for the build machine.
//
{
"type": "tool",
"name": "build_cc",
"command": "$BUILD_CC " + buildCflagsLine + "-c -o $OUT $IN",
"description": "Compiling - $IN",
"depsformat": "gcc",
"depfile": "$OUT.d"
},
//
// C++ compiler for the build machine.
//
{
"type": "tool",
"name": "build_cxx",
"command": "$BUILD_CXX " + buildCflagsLine + "-c -o $OUT $IN",
"description": "Compiling - $IN",
"depsformat": "gcc",
"depfile": "$OUT.d"
},
//
// Linker for the build machine.
//
{
"type": "tool",
"name": "build_ld",
"command": "$BUILD_CC " + buildLdflagsLine +
"-o $OUT $IN -Bdynamic $DYNLIBS",
"description": "Linking - $OUT",
},
//
// Static archiver for the build machine.
//
{
"type": "tool",
"name": "build_ar",
"command": "$BUILD_AR rcs $OUT $IN",
"description": "Building Library - $OUT",
},
//
// Assembler for the build machine.
//
{
"type": "tool",
"name": "build_as",
"command": "$BUILD_CC " + buildAsflagsLine + "-c -o $OUT $IN",
"description": "Assembling - $IN",
"depsformat": "gcc",
"depfile": "$OUT.d"
},
//
// Strip for the build machine.
//
{
"type": "tool",
"name": "build_strip",
"command": "$BUILD_STRIP $STRIP_FLAGS -o $OUT $IN",
"description": "Stripping - $OUT",
},
//
// Windows resource compiler for the build machine.
//
{
"type": "tool",
"name": "build_rcc",
"command": "$RCC -o $OUT $IN",
"description": "Compiling Resource - $IN",
},
//
// ACPI assembler used to build firmware images.
//
{
"type": "tool",
"name": "iasl",
"command": "$SHELL -c \"$IASL $IASL_FLAGS -p $OUT $IN > $OUT.stdout\"",
"description": "Compiling ASL - $IN"
},
//
// Copy files from one location to another.
//
{
"type": "tool",
"name": "copy",
"command": "$SHELL -c \"cp $CPFLAGS $IN $OUT && [ -z $CHMOD_FLAGS ] || "
"chmod $CHMOD_FLAGS $OUT\"",
"description": "Copying - $IN -> $OUT"
},
//
// Create symbolic links (or just copy on Windows).
//
{
"type": "tool",
"name": "symlink",
"command": symlinkCommand,
"description": "Symlinking - $OUT"
},
//
// Touch a file with the date.
//
{
"type": "tool",
"name": "stamp",
"command": "$SHELL -c \"date > $OUT\"",
"description": "Stamp - $OUT"
},
//
// Touch to create a timestamped empty file.
//
{
"type": "tool",
"name": "touch",
"command": "touch $OUT",
"description": "Touch - $OUT"
},
//
// Create a directory.
//
{
"type": "tool",
"name": "mkdir",
"command": "mkdir -p $OUT",
"description": "mkdir $OUT"
},
//
// Generate a version.h.
//
{
"type": "tool",
"name": "gen_version",
"command": "$SHELL $S/tasks/build/print_version.sh $OUT $FORM "
"$MAJOR $MINOR $REVISION $RELEASE $SERIAL $BUILD_STRING",
"description": "Versioning - $OUT"
}];
return tools;
}
function
setupEnv (
)
/*++
Routine Description:
This routine is called once to set up the build environment.
Arguments:
None.
Return Value:
Returns the basic set of tools used by the environment.
--*/
{
var archVariant;
//
// Prefer Ninja files.
//
config.format ?= "ninja";
//
// Set up the Minoca config dictionary.
//
mconfig = {};
mconfig.build_os = config.build_os;
mconfig.build_machine = config.build_machine;
mconfig.build_variant = "";
if (mconfig.build_machine == "i686") {
mconfig.build_arch = "x86";
} else if (mconfig.build_machine == "i586") {
mconfig.build_arch = "x86";
mconfig.build_variant = "q";
} else if ((mconfig.build_machine == "armv7") ||
(mconfig.build_machine == "armv6")) {
mconfig.build_arch = mconfig.build_machine;
} else if (mconfig.build_machine == "x86_64") {
mconfig.build_arch = "x64";
}
mconfig.arch = getenv("ARCH");
mconfig.arch ?= mconfig.build_arch;
mconfig.arch ?= "x86";
mconfig.debug = getenv("DEBUG");
mconfig.debug ?= "dbg";
mconfig.variant = getenv("VARIANT");
mconfig.variant ?= mconfig.build_variant;
mconfig.release_level = "SystemReleaseDevelopment";
mconfig.cflags = initListFromEnvironment("CFLAGS",
["-O2", "-Wall", "-Werror"]);
mconfig.kernelCflags = [];
mconfig.cppflags = initListFromEnvironment("CPPFLAGS", []);
mconfig.ldflags = initListFromEnvironment("LDFLAGS", []);
mconfig.asflags = initListFromEnvironment("ASFLAGS", []);
mconfig.stripflags = initListFromEnvironment("STRIP_FLAGS", []);
mconfig.build_cc = getenv("BUILD_CC");
mconfig.build_cc ?= "gcc";
mconfig.build_ar = getenv("BUILD_AR");
mconfig.build_ar ?= "ar";
mconfig.build_strip = getenv("BUILD_STRIP");
mconfig.build_strip ?= "strip";
config.output ?= "$S/../" + mconfig.arch + mconfig.variant + mconfig.debug +
"/obj/os";
mconfig.outroot = "$O/../..";
mconfig.binroot = mconfig.outroot + "/bin";
mconfig.stripped = mconfig.binroot + "/stripped";
mconfig.cc = getenv("CC");
mconfig.ar = getenv("AR");
mconfig.objcopy = getenv("OBJCOPY");
mconfig.strip = getenv("STRIP");
mconfig.rcc = getenv("RCC");
mconfig.rcc ?= "windres";
mconfig.iasl = getenv("IASL");
mconfig.iasl ?= "iasl";
mconfig.shell = getenv("SHELL");
mconfig.shell ?= "sh";
mconfig.target = null;
//
// Add in the command line variables, then define the derived variables.
//
for (key in config.cmdvars) {
mconfig[key] = config.cmdvars[key];
}
archVariant = mconfig.arch + mconfig.variant;
if (!mconfig.target) {
if (archVariant == "x86") {
mconfig.target = "i686-pc-minoca";
} else if (archVariant == "x86q") {
mconfig.target = "i586-pc-minoca";
} else if ((mconfig.arch == "armv7") || (mconfig.arch == "armv6")) {
mconfig.target = "arm-none-minoca";
} else if (mconfig.arch == "x64") {
mconfig.target = "x86_64-pc-minoca";
} else {
Core.raise(ValueError("Unknown architecture" + mconfig.arch));
}
}
mconfig.native = false;
if ((mconfig.build_os == "Minoca") &&
(mconfig.arch == mconfig.build_arch)) {
mconfig.native = true;
}
if (mconfig.native) {
mconfig.cc ?= mconfig.build_cc;
mconfig.ar ?= mconfig.build_ar;
mconfig.strip ?= mconfig.build_strip;
mconfig.objcopy ?= "objcopy";
} else {
mconfig.cc ?= mconfig.target + "-gcc";
mconfig.ar ?= mconfig.target + "-ar";
mconfig.strip ?= mconfig.target + "-strip";
mconfig.objcopy ?= mconfig.target + "-objcopy";
}
if (mconfig.debug == "dbg") {
mconfig.cflags += ["-DDEBUG=1"];
} else {
mconfig.cflags += ["-Wno-unused-but-set-variable", "-DNDEBUG"];
}
mconfig.cflags += ["-fno-builtin",
"-g",
"-save-temps=obj",
"-ffunction-sections",
"-fdata-sections",
"-fvisibility=hidden"];
mconfig.cppflags += ["-I$S/include"];
mconfig.build_cflags = [] + mconfig.cflags;
mconfig.build_cppflags = [] + mconfig.cppflags;
mconfig.cflags += ["-fpic"];
//
// Windows cannot handle -fpic, but everyone else can.
//
if (mconfig.build_os == "Windows") {
mconfig.build_cflags += ["-mno-ms-bitfields"];
} else {
mconfig.build_cflags += ["-fpic"];
}
if (mconfig.build_os == "Darwin") {
mconfig.build_cflags += ["-Wno-tautological-compare",
"-Wno-parentheses-equality"];
}
//
// Add some architecture variant flags.
//
if (archVariant == "x86q") {
mconfig.cppflags += ["-Wa,-momit-lock-prefix=yes", "-march=i586"];
} else if (archVariant == "x64") {
mconfig.kernelCflags = ["-mno-sse", "-mno-red-zone"];
} else if (archVariant == "armv6") {
mconfig.cflags += ["-march=armv6zk", "-marm", "-mfpu=vfp"];
}
mconfig.build_asflags = [];
mconfig.asflags += ["-Wa,-g"];
mconfig.build_ldflags = initListFromEnvironment("BUILD_LDFLAGS",
[] + mconfig.ldflags);
mconfig.ldflags += ["-Wl,--gc-sections"];
//
// Mac OS cannot handle --gc-sections or strip -p.
//
if (mconfig.build_os != "Darwin") {
mconfig.build_ldflags += ["-Wl,--gc-sections"];
mconfig.stripflags += ["-p"];
}
//
// Define the set of variables that get passed all the way through to the
// final Make/ninja file. Passing these on as variables rather than
// substituting during the mingen build process allows for a smaller
// build file, and easier manual tweaking by the user.
//
config.vars = {
"BUILD_CC": mconfig.build_cc,
"BUILD_AR": mconfig.build_ar,
"BUILD_STRIP": mconfig.build_strip,
"CC": mconfig.cc,
"AR": mconfig.ar,
"STRIP": mconfig.strip,
"OBJCOPY": mconfig.objcopy,
"RCC": mconfig.rcc,
"IASL": mconfig.iasl,
"SHELL": mconfig.shell,
"BASE_CFLAGS": mconfig.cflags,
"KERNEL_CFLAGS": mconfig.kernelCflags,
"BASE_CPPFLAGS": mconfig.cppflags,
"BASE_LDFLAGS": mconfig.ldflags,
"BASE_ASFLAGS": mconfig.asflags,
"BUILD_BASE_CFLAGS": mconfig.build_cflags,
"BUILD_BASE_CPPFLAGS": mconfig.build_cppflags,
"BUILD_BASE_LDFLAGS": mconfig.build_ldflags,
"BUILD_BASE_ASFLAGS": mconfig.build_asflags,
"STRIP_FLAGS": mconfig.stripflags,
"IASL_FLAGS": ["-we"],
"CPFLAGS": "-p",
};
if (config.verbose) {
Core.print("Minoca Build Configuration:");
for (key in mconfig) {
Core.print("\t%s: %s" % [key, mconfig[key].__str()]);
}
}
return getTools();
}
function
addConfig (
entry,
name,
value
)
/*++
Routine Description:
This routine adds a configure option to a list, ensuring that both the
config dictionary and option already exist.
Arguments:
entry - Supplies the entry to add the configure option to.
name - Supplies the name of the option to add.
value - Supplies the new value to add to the list of options.
Return Value:
None.
--*/
{
if (!entry.get("config")) {
entry.config = {};
}
if (!entry.config.get(name)) {
entry.config[name] = [];
}
entry.config[name] += [value];
return;
}
function
group (
name,
entries
)
/*++
Routine Description:
This routine creates a phony target that groups a bunch of different
targets together under a common name.
Arguments:
name - Supplies the name of the new group target.
entries - Supplies the list of entries.
Return Value:
Returns a list containing the entry for the group target.
--*/
{
var entry = {
"label": name,
"type": "target",
"tool": "phony",
"inputs": entries,
"config": {}
};
return [entry];
}
function
touch (
destination,
destinationLabel,
mode
)
/*++
Routine Description:
This routine creates an empty file target.
Arguments:
destination - Supplies the copy destination.
destinationLabel - Supplies a label naming the target.
mode - Supplies the chmod mode of the destination.
Return Value:
Returns a list containing the copy entry.
--*/
{
var config = {};
if (mode) {
config["CHMOD_FLAGS"] = mode;
}
destinationLabel ?= destination;
var entry = {
"type": "target",
"tool": "touch",
"label": destinationLabel,
"output": destination,
"config": config
};
return [entry];
}
function
makedir (
destination,
destinationLabel
)
/*++
Routine Description:
This routine creates an empty directory target.
Arguments:
destination - Supplies the copy destination.
destinationLabel - Supplies a label naming the target.
Return Value:
Returns a list containing the copy entry.
--*/
{
destinationLabel ?= destination;
var entry = {
"type": "target",
"tool": "mkdir",
"label": destinationLabel,
"output": destination,
};
return [entry];
}
function
copy (
source,
destination,
destinationLabel,
flags,
mode
)
/*++
Routine Description:
This routine creates a target that copies a file from one place to another.
Arguments:
source - Supplies the source to copy.
destination - Supplies the copy destination.
destinationLabel - Supplies a label naming the copy target.
flags - Supplies the flags to include in the copy.
mode - Supplies the chmod mode of the destination.
Return Value:
Returns a list containing the copy entry.
--*/
{
var config = {};
if (flags) {
config["CPFLAGS"] = flags;
}
if (mode) {
config["CHMOD_FLAGS"] = mode;
}
var entry = {
"type": "target",
"tool": "copy",
"label": destinationLabel,
"inputs": [source],
"output": destination,
"config": config
};
if (!destinationLabel) {
entry["label"] = destination;
}
return [entry];
}
function
strip (
params
)
/*++
Routine Description:
This routine converts an entry to a strip entry, where the target will be
stripped.
Arguments:
params - Supplies the existing entry.
Return Value:
Returns a list containing the strip entry.
--*/
{
params.type = "target";
params.tool = "strip";
if (params.get("build")) {
params.tool = "build_strip";
}
return [params];
}
function
binplace (
params
)
/*++
Routine Description:
This routine replaces the current target with a copied version in the
final bin directory. This will also create a stripped version in the
stripped directory unless told not to.
Arguments:
params - Supplies the existing entry.
Return Value:
Returns a list containing the strip entry.
--*/
{
var build = params.get("build");
var copiedEntry;
var cpflags = params.get("cpflags");;
var destination;
var destinationLabel;
var destinationPath;
var element;
var entries = [];
var extraCopy;
var fileName;
var label = params.get("label");
var mode = params.get("mode");
var newOriginalLabel;
var originalTarget;
var source = params.get("output");
var strippedEntry;
var strippedOutput;
label ?= source;
source ?= label;
if ((!label) || (!source)) {
Core.raise(ValueError("Label or output must be defined"));
}
//
// Set the output since the label is going to be renamed and create the
// copy target.
//
params.output = source;
params.type = "target";
fileName = basename(source);
destination = params.get("binplace");
newOriginalLabel = label + "_orig";
originalTarget = ":" + newOriginalLabel;
//
// Create the first or only one with the genuine label.
//
element = destination;
if (element is List) {
element = element[0];
}
if (!element) {
element = "bin";
}
destinationPath = mconfig.outroot + "/" + element + "/" + fileName;
copiedEntry = copy(originalTarget,
destinationPath,
label,
cpflags,
mode)[0];
entries.append(copiedEntry);
//
// Handle binplacing into several areas.
//
if (destination is List) {
for (index in 1..destination.length()) {
element = destination[index];