Final removal of exceptions from lib/System and adjustment of users to
accommodate.

llvm-svn: 29846

Eliminate exception throwing from Path::renamePathOnDisk and adjust its
users correspondingly.

llvm-svn: 29843

Remove exception throwing from Path::getDirectoryContents and its users.

llvm-svn: 29841

Remove exceptions from the Path::create*OnDisk methods. Update their users
to handle error messages via arguments and result codes.

llvm-svn: 29840

Change the Path::make*OnDisk methods exception free and adjust their usage.

llvm-svn: 29836

adjust users of it to compensate.

llvm-svn: 29831

just return MinTime if that should ever happen.

llvm-svn: 29826

Make MappedFile not throw any exceptions.

llvm-svn: 29816

Fix a bug in my last patch that botched file redirection by using explicit
scoping of if statements.

llvm-svn: 29815

llvm-svn: 29808

Remove all exception code from Program.inc and implement its new interface
with an ErrMsg string argument.

llvm-svn: 29790

Make sys::Program::ExecuteAndWait not throw exceptions and update any
affected code. It now return -9999 to signal that the program couldn't be
executed. Only one case (in bugpoint) actually examines the result code.

llvm-svn: 29785

llvm-svn: 29541

the removal of directories. Using std::remove is indiscriminate and can
lead to the removal of things like /dev/null if run as root. The
Path::eraseFromDisk method ensures that we only ever remove regular files
or directories, but never character or block special nodes.  This should
clear up the problem with usage like: llvm-as -o /dev/null which is used
in the llvm-test makefiles.

llvm-svn: 29540

the erasure of non-file paths like /dev/null.

llvm-svn: 29539

llvm-svn: 29447

llvm-svn: 29443

llvm-svn: 29442

llvm-svn: 29402

llvm-svn: 29400

instead of throwing an exception.  This reduces the amount of code that is
exposed to exceptions (e.g. FileUtilities), though it is clearly only one step
along the way.

llvm-svn: 29395

"access").  Instead, just let the open call fail if the file doesn't exist.
This reduces the # syscalls executed.

llvm-svn: 29173

spacing

llvm-svn: 29172

the size, not the whole stat buffer.

llvm-svn: 29171

good.

llvm-svn: 29170

llvm-svn: 29169

llvm-svn: 29129

llvm-svn: 29068

llvm-svn: 29058

the Signals module that registered the handlers would cause the stack trace
to be generated. Now, you must explicitly call PrintStackTraceOnErrorSignal
in order for that to happen.

llvm-svn: 28810

Use execve when explicit environment variables ptr is available. Otherwise
just use execv.

llvm-svn: 28740

Provide new llvm::sys::Program facilities for converting the stdout and
stdin to binary mode. There is no standard way to do this and the available
mechanisms are platform specific. Adjust the bytecode reader and writer to
use these methods when their input is stdin or output is stdout. THis avoids
the problem with \n writing CRLF to a bytecode file on windows.

Patch Contributed by Michael Smith.

llvm-svn: 28722

handle it.  Just silently fail.

llvm-svn: 28291

llvm-svn: 28260

llvm-svn: 28257

* Allow the ExecuteAndWait to return negative values if a signal is
  detected as the reason for the child termination. This is needed to
  support bugpoint detecting bad things in its child processes.

llvm-svn: 24960

dependent portion of the lib/Support/SlowOperationTimer code into the
lib/System implementation where it can be ported to different platforms.

llvm-svn: 24937

that actually make sense.

llvm-svn: 24352

the default allocator uses mmap.

llvm-svn: 24349

build will not fail

llvm-svn: 22578