avoids a call to ::fstat by MappedFile when the file size information was
already obtained by the Path object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35477 91177308-0d34-0410-b5e6-96231b3b80d8
Make the sys::Path::getFileStatus function more efficient by having it
return a pointer to the FileStatus structure rather than copy it. Adjust
uses of the function accordingly. Also, fix some memory issues in sys::Path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35476 91177308-0d34-0410-b5e6-96231b3b80d8
to the inode number on Unix and something far less unique on Windows. The
windows case needs to be improved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35461 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a method: bool isAbsolute() const, which determines if the path name
is absolute or not.
* Implement caching of file status information in the Path object. Allow it
to be updated forcefully or lazily re-fetched from the cached value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35456 91177308-0d34-0410-b5e6-96231b3b80d8
the process in addition to disabling core file emission. This speeds up
bugpoint on default-configured macs by several orders of magnitude.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30317 91177308-0d34-0410-b5e6-96231b3b80d8
Make the Win32 code exception free (untested/uncompiled) which forced some
interface changes which had ripple effect. This should be the last of 797.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29884 91177308-0d34-0410-b5e6-96231b3b80d8
Remove exceptions from the Path::create*OnDisk methods. Update their users
to handle error messages via arguments and result codes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29840 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a bug in my last patch that botched file redirection by using explicit
scoping of if statements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29815 91177308-0d34-0410-b5e6-96231b3b80d8
Remove all exception code from Program.inc and implement its new interface
with an ErrMsg string argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29790 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29785 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29540 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29395 91177308-0d34-0410-b5e6-96231b3b80d8
"access"). Instead, just let the open call fail if the file doesn't exist.
This reduces the # syscalls executed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29173 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28810 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28722 91177308-0d34-0410-b5e6-96231b3b80d8
* 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24960 91177308-0d34-0410-b5e6-96231b3b80d8
dependent portion of the lib/Support/SlowOperationTimer code into the
lib/System implementation where it can be ported to different platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24937 91177308-0d34-0410-b5e6-96231b3b80d8
