waf/waflib/extras/file_to_object.py

61 lines
1.5 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
# Tool to embed file into objects
__author__ = __maintainer__ = "Jérôme Carretero <cJ-waf@zougloub.eu>"
__copyright__ = "Jérôme Carretero, 2014"
"""
This tool allows to embed file contents in object files (.o).
It is not exactly portable, and the file contents are reachable
using various non-portable fashions.
The goal here is to provide a functional interface to the embedding
of file data in objects.
See the ``playground/embedded_resources`` example for an example.
Usage::
bld(
name='pipeline',
# ^ Reference this in use="..." for things using the generated code
features='file_to_object',
source='some.file',
# ^ Name of the file to embed in binary section.
)
Known issues:
- Currently only handles elf files with GNU ld.
- Destination is named like source, with extension renamed to .o
eg. some.file -> some.o
"""
from waflib import Task, Utils, TaskGen
class file_to_object(Task.Task):
run_str = '${LD} -r -b binary -o ${TGT[0].abspath()} ${SRC[0].name}'
color = 'CYAN'
@TaskGen.feature('file_to_object')
@TaskGen.before_method('process_source')
def tg_file_to_object(self):
bld = self.bld
src = self.to_nodes(self.source)
assert len(src) == 1
src = src[0]
tgt = src.change_ext('.o')
task = self.create_task('file_to_object',
src, tgt, cwd=src.parent.abspath())
try:
self.compiled_tasks.append(task)
except AttributeError:
self.compiled_tasks = [task]
self.source = []
def configure(conf):
conf.load('gcc')
conf.env.LD = [ conf.env.CC[0].replace('gcc', 'ld') ]