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813a9c4567
For LLVM on *nix systems, the signal handlers are not run on signals such as SIGINT due to CTRL-C. See sys::CleanupOnSignal. This makes sense, as such signals are not really crashes. Prior to this change, this wasn't the case on Windows, however. This patch changes the Windows behaviour to be consistent with Linux, and adds testing that verifies this. The test uses llvm-symbolizer, but any tool with an interactive mode would do the job. Fixes https://bugs.llvm.org/show_bug.cgi?id=45754. Reviewed by: MaskRay, rnk, aganea Differential Revision: https://reviews.llvm.org/D79847
44 lines
1.4 KiB
Plaintext
44 lines
1.4 KiB
Plaintext
## Show that SIGINT and similar signals don't cause crash messages to be
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## reported.
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# RUN: %python %s wrapper llvm-symbolizer 2> %t.err
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# RUN: count 0 < %t.err
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import os
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import signal
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import subprocess
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import sys
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import time
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def run_symbolizer():
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proc = subprocess.Popen([sys.argv[2]], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
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# Write then read some output to ensure the process has started fully.
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proc.stdin.write(b'foo\n')
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proc.stdin.flush()
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proc.stdout.readline()
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# Windows handles signals differently.
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if os.name == 'nt':
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os.kill(0, signal.CTRL_BREAK_EVENT)
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else:
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proc.send_signal(signal.SIGINT)
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# On Windows, this function spawns the subprocess in its own (hidden) console,
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# so that signals do not interfere with the calling test. This isn't necessary
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# on other systems.
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def run_wrapper():
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args = [sys.executable, __file__, 'symbolizer'] + sys.argv[2:]
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if os.name == 'nt':
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startupinfo = subprocess.STARTUPINFO()
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startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
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proc = subprocess.Popen(args,
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stderr=sys.stderr,
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startupinfo=startupinfo,
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creationflags=subprocess.CREATE_NEW_CONSOLE)
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else:
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proc = subprocess.Popen(args,
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stderr=subprocess.PIPE)
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if sys.argv[1] == 'wrapper':
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run_wrapper()
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else:
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run_symbolizer()
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