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84 lines
3.0 KiB
84 lines
3.0 KiB
#!/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 re |
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import sys |
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# Handle size constants with K or M suffixes (allowed in .ld but not in Python). |
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K_PATTERN = re.compile(r'([0-9]+)K') |
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K_REPLACE = r'(\1*1024)' |
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M_PATTERN = re.compile(r'([0-9]+)M') |
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M_REPLACE = r'(\1*1024*1024)' |
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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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# Uncomment to see linker output. |
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# print(line) |
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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_FIRMWARE", "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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space = K_PATTERN.sub(K_REPLACE, space) |
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space = M_PATTERN.sub(M_REPLACE, space) |
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regions[region] = int(eval(space)) |
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# TODO Remove check for both FLASH_FIRMWARE and FLASH after all ports are converted to use FLASH_FIRMWARE. |
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try: |
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firmware_region = regions["FLASH_FIRMWARE"] |
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except KeyError: |
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firmware_region = regions["FLASH"] |
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ram_region = regions["RAM"] |
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free_flash = firmware_region - text - data |
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free_ram = ram_region - data - bss |
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print("{} bytes free in flash firmware space out of {} bytes ({}kB).".format(free_flash, firmware_region, firmware_region / 1024)) |
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print("{} bytes free in ram for stack and heap out of {} bytes ({}kB).".format(free_ram, ram_region, ram_region / 1024)) |
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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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