Files
libretiny/builder/utils/env.py
2022-12-30 15:51:32 +01:00

123 lines
4.2 KiB
Python

# Copyright (c) Kuba Szczodrzyński 2022-05-04.
import sys
from os.path import isdir, join
from subprocess import PIPE, Popen
from ltchiptool import Family
from SCons.Script import DefaultEnvironment
env = DefaultEnvironment()
def read_version(platform_dir: str, version: str):
if not isdir(join(platform_dir, ".git")):
sys.stderr.write("Warning! Non-Git installations are NOT SUPPORTED.\n")
return version
try:
p = Popen(
["git", "rev-parse", "--short", "HEAD"], stdout=PIPE, cwd=platform_dir
)
if p.wait() != 0:
sys.stderr.write(
f"Warning! Non-zero return code received from Git: {p.returncode}\n"
)
return version
sha = p.stdout.read().decode().strip()
p = Popen(["git", "status", "--short"], stdout=PIPE, cwd=platform_dir)
if p.wait() != 0:
sys.stderr.write(
f"Warning! Non-zero return code received from Git: {p.returncode}\n"
)
return version
dirty = p.stdout.read().strip()
except (FileNotFoundError, IndexError):
sys.stderr.write(
"Warning! Git executable not found, or unreadable data received. Cannot read version information.\n"
)
return version
ids = [
sha and "sha",
sha[:7] or None,
"dirty" if dirty else None,
]
build_str = ".".join(filter(None, ids))
return f"{version}+{build_str}" if build_str else version
def env_add_defaults(env, platform, board):
# Get Family object for this board
family = Family.get(short_name=board.get("build.family"))
# Default environment variables
vars = dict(
SDK_DIR=platform.get_package_dir(family.framework),
LT_DIR=platform.get_dir(),
# Root dirs
BOARD_DIR=join("${LT_DIR}", "boards", "${VARIANT}"),
ARDUINO_DIRS={
"$FAMILY_CODE": join("${LT_DIR}", "arduino", "${FAMILY_NAME}"),
"$FAMILY_PARENT_CODE": join("${LT_DIR}", "arduino", "${FAMILY_PARENT}"),
},
FAMILY_DIR=join("${LT_DIR}", "platform", "${FAMILY_NAME}"),
PARENT_DIR=join("${LT_DIR}", "platform", "${FAMILY_PARENT}"),
TOOLS_DIR=join("${LT_DIR}", "tools"),
# Family-specific paths
BIN_DIR=join("${FAMILY_DIR}", "bin"),
OPENOCD_DIR=join("${FAMILY_DIR}", "openocd"),
# Use SDK linker script by default
LDSCRIPT_PATH=["${LDSCRIPT_SDK}"],
# Board config variables
MCU=board.get("build.mcu").upper(),
MCULC=board.get("build.mcu"),
VARIANT=board.get("build.variant"),
LDSCRIPT_SDK=board.get("build.ldscript_sdk"),
LDSCRIPT_ARDUINO=board.get("build.ldscript_arduino"),
# ltchiptool config:
# -r output raw log messages
# -i 1 indent log messages
LTCHIPTOOL='"${PYTHONEXE}" -m ltchiptool -r -i 1',
# Fix for link2bin to get tmpfile name in argv
LINKCOM="${LINK} ${LINKARGS}",
LINKARGS="${TEMPFILE('-o $TARGET $LINKFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS', '$LINKCOMSTR')}",
)
env.Replace(**vars)
# Store family parameters as environment variables
env.Replace(**dict(family))
# Default build options
env.Prepend(
CPPPATH=[
"$LT_DIR/platform/common/config",
"$LT_DIR/platform/common/fixups",
"$LT_DIR/platform/common/fixups/lib_inc",
"$BOARD_DIR",
"$FAMILY_DIR/config",
"$PARENT_DIR/config",
"$FAMILY_DIR/fixups",
"$PARENT_DIR/fixups",
"$FAMILY_DIR/fixups/inc",
"$PARENT_DIR/fixups/inc",
],
LIBPATH=[
"$FAMILY_DIR/ld",
"$PARENT_DIR/ld",
"$FAMILY_DIR/fixups",
"$PARENT_DIR/fixups",
],
CPPDEFINES=[
("LIBRETUYA", "1"),
("LT_VERSION", read_version(platform.get_dir(), platform.version)),
("LT_BOARD", "${VARIANT}"),
("F_CPU", board.get("build.f_cpu")),
("MCU", "${MCU}"),
("FAMILY", "F_${FAMILY}"),
],
LINKFLAGS=[
'"-Wl,-Map=' + join("$BUILD_DIR", "${PROGNAME}.map") + '"',
],
)
env.AddMethod(env_add_defaults, "AddDefaults")