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Message-ID: <50CEFC0B.70307@ojab.ru>
Date: Mon, 17 Dec 2012 15:03:39 +0400
From: ojab <ojab@...b.ru>
To: musl@...ts.openwall.com
Subject: LLVM testsuite, close-stderr.ll hangs
Hi list,
I'm trying to build LLVM/clang with musl and found that LLVM testsuite
hangs on close-stderr.ll ("Test that the error handling when writing to
stderr fails exits the program cleanly rather than aborting.").
Exact part is: `opt --reject-this-option 2>&-` (opt is "llvm .bc -> .bc
modular optimizer and analysis printer").
On glibc this command exits with code 1, on musl it hangs. strace output
can be found in the attached files.
Error output happens in:
https://github.com/llvm-mirror/llvm/blob/master/lib/Support/ErrorHandling.cpp#L64
and there some locking/cleanup happens just before exit(1):
https://github.com/llvm-mirror/llvm/blob/master/lib/Support/Unix/Signals.inc#L187
https://github.com/llvm-mirror/llvm/blob/master/lib/Support/Unix/Signals.inc#L119
Is it LLVM or musl issue?
Please tell if any additional info/ssh access/etc is needed for
investigation.
//wbr ojab
View attachment "opt_musl.log" of type "text/plain" (11719 bytes)
View attachment "opt_glibc.log" of type "text/plain" (80010 bytes)
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