66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
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#!/usr/bin/env python3
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#
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# This file is part of the MicroPython project, http://micropython.org/
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#
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# The MIT License (MIT)
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#
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# Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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import sys
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print()
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text = 0
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data = 0
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bss = 0
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# stdin is the linker output.
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for line in sys.stdin:
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line = line.strip()
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if not line.startswith("text"):
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text, data, bss = map(int, line.split()[:3])
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regions = {}
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# This file is the linker script.
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with open(sys.argv[1], "r") as f:
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for line in f:
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line = line.strip()
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if line.startswith(("FLASH", "RAM")):
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regions[line.split()[0]] = line.split("=")[-1]
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for region in regions:
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space = regions[region]
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if "/*" in space:
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space = space.split("/*")[0]
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regions[region] = eval(space)
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free_flash = regions["FLASH"] - text - data
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free_ram = regions["RAM"] - data - bss
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print(free_flash, "bytes free in flash out of", regions["FLASH"], "bytes (", regions["FLASH"] / 1024, "kb ).")
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print(free_ram, "bytes free in ram for stack out of", regions["RAM"], "bytes (", regions["RAM"] / 1024, "kb ).")
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print()
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# Check that we have free flash space. GCC doesn't fail when the text + data
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# sections don't fit in FLASH. It only counts data in RAM.
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if free_flash < 0:
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print("Too little flash!!!")
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print()
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sys.exit(-1)
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