valeros
89 lines
2.3 KiB
Python
89 lines
2.3 KiB
Python
from os import SEEK_CUR, SEEK_END
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from os.path import basename, isfile, join
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from SCons.Script import Builder
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from platformio.util import cd
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Import("env")
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#
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# TXT files helpers
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#
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def prepare_files(files):
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if not files:
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return
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for f in files:
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with open(env.subst(f), "rb+") as fp:
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fp.seek(-1, SEEK_END)
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if fp.read(1) != '\0':
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fp.seek(0, SEEK_CUR)
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fp.write('\0')
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def extract_files(cppdefines):
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for define in cppdefines:
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if "EMBED_TXT_FILES" not in define:
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continue
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if not isinstance(define, tuple):
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print("Warning! EMBED_TXT_FILES config cannot be empty!")
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return []
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with cd(env.subst("$PROJECT_DIR")):
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value = define[1]
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if not isinstance(value, str):
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print("Warning! EMBED_TXT_FILES config must contain "
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"a list of files separated by ':'")
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return []
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result = []
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for f in value.split(':'):
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if not isfile(f):
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print("Warning! Could not find file %s" % f)
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continue
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result.append(join("$PROJECT_DIR", f))
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return result
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def remove_config_define(cppdefines):
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for define in cppdefines:
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if "EMBED_TXT_FILES" in define:
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env.ProcessUnFlags("-D%s" % "=".join(str(d) for d in define))
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return
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def embed_files(files):
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for f in files:
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filename = basename(f) + ".txt.o"
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file_target = env.TxtToBin(join("$BUILD_DIR", filename), f)
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env.Depends("$PIOMAINPROG", file_target)
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env.Append(PIOBUILDFILES=[env.File(join("$BUILD_DIR", filename))])
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env.Append(
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BUILDERS=dict(
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TxtToBin=Builder(
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action=env.VerboseAction(" ".join([
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"xtensa-esp32-elf-objcopy",
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"--input-target", "binary",
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"--output-target", "elf32-xtensa-le",
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"--binary-architecture", "xtensa",
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"--rename-section", ".data=.rodata.embedded",
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"$SOURCE", "$TARGET"
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]), "Converting $TARGET"),
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suffix=".txt.o"))
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)
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flags = env.get("CPPDEFINES")
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if "EMBED_TXT_FILES" in env.Flatten(flags):
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files = extract_files(flags)
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prepare_files(files)
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embed_files(files)
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remove_config_define(flags)
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