efdabe6073
I've been using this locally to find errors without running tests, and now that we're using autopep8, it passes with minimal suppressions. This is also what turned up the issues with the tutorials, which were fixed in #422.
123 lines
4.5 KiB
Python
123 lines
4.5 KiB
Python
# MIT License
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# Copyright (c) 2020 Da Yan @ HKUST
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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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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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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 THE
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# SOFTWARE.
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import re
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import subprocess
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FLINE_RE = re.compile(r'\s*/\*\w{4}\*/\s*([^;]*;)\s*/\* 0x(\w{16}) \*/\s*')
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SLINE_RE = re.compile(r'\s*/\* 0x(\w{16}) \*/\s*')
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FNAME_RE = re.compile(r'\s*Function : (\w+)\s*')
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BRA_RE = re.compile(r'(.*BRA(?:\.U)? )(0x\w+);')
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def parseCtrl(sline):
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enc = int(SLINE_RE.match(sline).group(1), 16)
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stall = (enc >> 41) & 0xf
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yld = (enc >> 45) & 0x1
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wrtdb = (enc >> 46) & 0x7
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readb = (enc >> 49) & 0x7
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watdb = (enc >> 52) & 0x3f
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yld_str = 'Y' if yld == 0 else '-'
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wrtdb_str = '-' if wrtdb == 7 else str(wrtdb)
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readb_str = '-' if readb == 7 else str(readb)
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watdb_str = '--' if watdb == 0 else f'{watdb:02d}'
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return f'{watdb_str}:{readb_str}:{wrtdb_str}:{yld_str}:{stall:x}'
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def processSassLines(fline, sline, labels):
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asm = FLINE_RE.match(fline).group(1)
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# Remove tailing space
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if asm.endswith(" ;"):
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asm = asm[:-2] + ";"
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ctrl = parseCtrl(sline)
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# BRA target address
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if BRA_RE.match(asm) is not None:
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target = int(BRA_RE.match(asm).group(2), 16)
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if target in labels:
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pass
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else:
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labels[target] = len(labels)
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return (f'{ctrl}', f'{asm}')
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def extract(file_path, fun):
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if fun is None:
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sass_str = subprocess.check_output(["cuobjdump", "-sass", file_path])
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else:
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sass_str = subprocess.check_output(["cuobjdump", "-fun", fun, "-sass", file_path])
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sass_lines = sass_str.splitlines()
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line_idx = 0
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while line_idx < len(sass_lines):
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line = sass_lines[line_idx].decode()
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# format:
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# function : <function_name>
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# .headerflags: ...
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# /*0000*/ asmstr /*0x...*/
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# /*0x...*/
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# Looking for new function header (function: <name>)
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while FNAME_RE.match(line) is None:
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line_idx += 1
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if line_idx < len(sass_lines):
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line = sass_lines[line_idx].decode()
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else:
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return
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fname = FNAME_RE.match(line).group(1)
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ret = ''
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ret += f'Function:{fname}\n'
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line_idx += 2 # bypass .headerflags
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line = sass_lines[line_idx].decode()
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# Remapping address to label
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labels = {} # address -> label_idx
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# store sass asm in buffer and them print them (for labels)
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# (ctrl, asm)
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asm_buffer = []
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while FLINE_RE.match(line) is not None:
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# First line (Offset ASM Encoding)
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fline = sass_lines[line_idx].decode()
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line_idx += 1
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# Second line (Encoding)
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sline = sass_lines[line_idx].decode()
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line_idx += 1
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asm_buffer.append(processSassLines(fline, sline, labels))
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# peek the next line
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line = sass_lines[line_idx].decode()
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# Print sass
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# label naming convension: LBB#i
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for idx, (ctrl, asm) in enumerate(asm_buffer):
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# Print label if this is BRA target
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offset = idx * 16
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if offset in labels:
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label_name = f'LBB{labels[offset]}'
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ret += f'{label_name}:\n'
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ret += ctrl + '\t'
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# if this is BRA, remap offset to label
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if BRA_RE.match(asm):
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target = int(BRA_RE.match(asm).group(2), 16)
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target_name = f'LBB{labels[target]}'
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asm = BRA_RE.sub(rf'\1{target_name};', asm)
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ret += asm + '\n'
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ret += '\n'
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return ret
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