88dae3d5d0
* Removes all Perl scripts and modules * Adds Python3 scripts which mimic the behavior of the Perl scripts * Removes Perl from CMake; Adds Python3 requirement to CMake * The check-instruction-set.pl script is Knights Corner specific. The script is removed and not replicated with a corresponding Python3 script. Relevant Discourse: https://discourse.llvm.org/t/error-compiling-clang-with-offloading-support/79223/4 Fixes: https://github.com/llvm/llvm-project/issues/62289
66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
#!/usr/bin/env python3
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#
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# //===----------------------------------------------------------------------===//
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# //
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# // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# // See https://llvm.org/LICENSE.txt for license information.
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# // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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# //
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# //===----------------------------------------------------------------------===//
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#
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import argparse
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import os
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import re
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import sys
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from libomputils import ScriptError, error, print_error_line, execute_command
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def is_stack_executable_readelf(library):
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"""Returns true if stack of library file is executable"""
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r = execute_command(["readelf", "-l", "-W", library])
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if r.returncode != 0:
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error("{} failed".format(r.command))
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stack_lines = []
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for line in r.stdout.split(os.linesep):
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if re.search("STACK", line):
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stack_lines.append(line.strip())
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if not stack_lines:
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error("{}: Not stack segment found".format(library))
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if len(stack_lines) > 1:
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error("{}: More than one stack segment found".format(library))
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h = r"0x[0-9a-fA-F]+"
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m = re.search(
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r"((GNU_)?STACK)\s+({0})\s+({0})\s+({0})\s+({0})\s+({0})"
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" ([R ][W ][E ])".format(h),
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stack_lines[0],
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)
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if not m:
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error("{}: Cannot parse stack segment line".format(library))
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if m:
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flags = m.group(8)
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if "E" in flags:
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return True
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return False
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def main():
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parser = argparse.ArgumentParser(
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description="Check library does not have" " executable stack"
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)
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parser.add_argument("library", help="The library file to check")
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commandArgs = parser.parse_args()
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if is_stack_executable_readelf(commandArgs.library):
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error("{}: Stack is executable".format(commandArgs.library))
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if __name__ == "__main__":
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try:
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main()
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except ScriptError as e:
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print_error_line(str(e))
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sys.exit(1)
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# end of file
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