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Check if ErrMsg is null. This fixes the "not" command. 

llvm-svn: 117666
This commit is contained in:
Dan Gohman 2010-10-29 17:20:42 +00:00
parent e1db7f2005
commit 5bc07d2bce
1 changed files with 11 additions and 6 deletions
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17
llvm/lib/System/Unix/Program.inc
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@ -359,24 +359,29 @@ Program::Wait(const sys::Path &path,
result = 126;
#endif
if (result == 127) {
*ErrMsg = llvm::sys::StrError(ENOENT);
if (ErrMsg)
*ErrMsg = llvm::sys::StrError(ENOENT);
return -1;
}
if (result == 126) {
*ErrMsg = "Program could not be executed";
if (ErrMsg)
*ErrMsg = "Program could not be executed";
return -1;
}
} else if (WIFSIGNALED(status)) {
*ErrMsg = strsignal(WTERMSIG(status));
if (ErrMsg) {
*ErrMsg = strsignal(WTERMSIG(status));
#ifdef WCOREDUMP
if (WCOREDUMP(status))
*ErrMsg += " (core dumped)";
if (WCOREDUMP(status))
*ErrMsg += " (core dumped)";
#endif
}
return -1;
}
return result;
#else
*ErrMsg = "Program::Wait is not implemented on this platform yet!";
if (ErrMsg)
*ErrMsg = "Program::Wait is not implemented on this platform yet!";
return -1;
#endif
}