For PR351:
Provide a check to determine if /dev/zero is needed for AllocateRWX function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19147 91177308-0d34-0410-b5e6-96231b3b80d8

Oops, reverse the logic on a test for WITH_LLVMGCCDIR to make it define
the path names correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19146 91177308-0d34-0410-b5e6-96231b3b80d8

Provide a value for HAVE_MMAP_ANONYMOUS variable, for consistency with
other #define's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19145 91177308-0d34-0410-b5e6-96231b3b80d8

Describe the --with-llvmgccdir option to configure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19144 91177308-0d34-0410-b5e6-96231b3b80d8

Revert the last patch so that the LLVMGCCDIR environment variable is
still viable and will make use of the resurrected --with-llvmgccdir
configure option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19143 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
* Make sure all headers used by lib/System have checks
* Use "standard" autoconf checks for certain problematic headers
For PR432:
* Resurrect --with-llvmgccdir so a specific llvm-gcc/llvm-g++ installation
  can be specified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19142 91177308-0d34-0410-b5e6-96231b3b80d8

mingw doesn't support the official debug API.

Old versions of the C runtime somehow get loaded into the process.  Make
sure they aren't searched for symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19141 91177308-0d34-0410-b5e6-96231b3b80d8

Get VC++ building again

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19140 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore the autom4te.cache directoy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19139 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure llvm-g++ gets the right path for the llvm tools.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19138 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate use of ltdl.c when doing a VC++ build.  Because libtool isn't used,
ltdl's LGPL license would infect all of LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19137 91177308-0d34-0410-b5e6-96231b3b80d8

Make the symbolic link using the correct variable!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19136 91177308-0d34-0410-b5e6-96231b3b80d8

Remove references to LLVMGCCDIR because it was only used to provide a
value for the --with-llvmgccdir configure option which is no longer
supported.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19135 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
Merge implementations of isValid and GetTemporaryDirectory into this file. There
is not any point having the operating system specific files for such little
variation between the Unix family of systems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19134 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
This implementation is no longer needed, its been merged to Unix/Path.cpp since
there is such little variation between the platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19133 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
Use the LLVM_ON_UNIX and LLVM_ON_WIN32 #defines to include the implementation
instead of relying upon the "platform" link

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19132 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
Create new variables LLVM_ON_UNIX and LLVM_ON_WIN32 so we can start getting
rid of reliance upon a symbolic link to switch implementations in lib/System

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19131 91177308-0d34-0410-b5e6-96231b3b80d8

Resurrect this file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19130 91177308-0d34-0410-b5e6-96231b3b80d8

Remove these files as they are not being included any more. DynamicLibrary
is now implemented via ltdl.cpp which has its own way of dealing with
the different platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19129 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure LLVMGCCWITHPATH is used instead of just LLVMGCC so that the
CFE tools can find the correct LLVM tools to invoke.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19128 91177308-0d34-0410-b5e6-96231b3b80d8

The dejagnu scripts need a path for llvm-gcc/llvm-g++ as well so use the
correct variable to get a "set the path first" invocation of those tools.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19127 91177308-0d34-0410-b5e6-96231b3b80d8

Two corrections:
* When reconfiguring, make sure the config.cache file is blown away so that
  its (old) values don't short-circuit doing the tests. When a reconfigure
  is done, it should be done from scratch, without the cache.
* For dist-check, don't pass --with-llvmgccdir any more because configure
  doesn't have this option any more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19126 91177308-0d34-0410-b5e6-96231b3b80d8

Change llvmgcc/llvmg++ to llvm-gcc and llvm-g++ respectively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19125 91177308-0d34-0410-b5e6-96231b3b80d8

Fix VC++ compilation error

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19124 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in libtool's ltmain.sh. On Cygwin the "$output.exp" expression
expands to a full path name. Substitute $outputname.exp" instead and it
makes a viable temporary file name. This gets around the problem with lli
on Cygwin linking but not having any "C" library functions linked into it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19123 91177308-0d34-0410-b5e6-96231b3b80d8

Put CopyFile in the sys namespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19122 91177308-0d34-0410-b5e6-96231b3b80d8

Wrap at 80 cols

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19121 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the comments and file header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19120 91177308-0d34-0410-b5e6-96231b3b80d8

Try to speed up gccld hot spot in BasicVN::getEqualNumberNodes by making
a function call at the core of the loop inline and removing unused
stack variables from an often called function. This doesn't improve things
much, the real saving will be by reducing the number of calls to this
function (100K+ when linking kimwitu++).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19119 91177308-0d34-0410-b5e6-96231b3b80d8

Update the amd64 target detection checks.
Patch contributed by Markus F.X.J. Oberhumer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19118 91177308-0d34-0410-b5e6-96231b3b80d8

Add a caution about using experimental versions of gnu binutils when
building Cygwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19117 91177308-0d34-0410-b5e6-96231b3b80d8

Be specific about version of GCC and binutils on Cygwin since it matters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19116 91177308-0d34-0410-b5e6-96231b3b80d8

LLVM now builds and runs on Linux/amd64, but we don't have 64-bit codegen yet

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19115 91177308-0d34-0410-b5e6-96231b3b80d8

Allow llc to recognize -march=x86.  As it was, it didn't recognize any
architecture at all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19114 91177308-0d34-0410-b5e6-96231b3b80d8

Added support for detection of amd64 targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19113 91177308-0d34-0410-b5e6-96231b3b80d8

Patch to fix mingw compilation problem contributed by Henrik.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19112 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the build on PowerPC/Darwin - it thought we were declaring a new
function or something. Since FileRemover takes a const reference to
sys::Path, we need to pass an actual sys::Path variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19111 91177308-0d34-0410-b5e6-96231b3b80d8

* Remove an unnecessary step.
* Correct a path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19110 91177308-0d34-0410-b5e6-96231b3b80d8

Correct compilation for Cygwin. FindExecutable now returns a sys::Path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19109 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
Include local FDHandle.h file now that FDHandle is local to this library
and not in lib/System/FileUtilities.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19108 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
FDHandle class (non-portable) moved here from lib/Support/FileUtilities

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19107 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
Move non-portable FDHandle class to its only user: lib/Debugger

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19106 91177308-0d34-0410-b5e6-96231b3b80d8

Add a blurb about using the GCC 3.4.3 compiler on Cygwin (which works) for
the CFE instead of the default GCC 3.3.3 compiler that comes with Cygwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19104 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
* Remove the idiotic windows environment setting, its not needed.
* Remove an extraneous "mkdir" instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19103 91177308-0d34-0410-b5e6-96231b3b80d8

Hopefully fix a link.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19102 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the names of these executables now that they've been somewhat cast in
stone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19101 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the name of the executables to which llvmgcc and llvmgxx variables
point to.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19100 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
Rework the CFE build details to include the directions for using the
option --program-prefix=llvm- to the CFE's configure script. This ensures
that the CFE builds unique executable names and makes it possible to put
the $CFEINSTALL/bin directory into one's path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19099 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
* llvmgcc -> llvm-gcc
* llvmg++ -> llvm-g++
* remove references to --with-llvmgccdir configure option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19098 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
* Use LLVMGCC and LLVMGXX variables instead of computing the name

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19097 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
* Variable name change: cferuntime_libdir -> CFERuntimeLibDir

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19096 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
* Cleanup LLVMGCXX and LLVMGCC by providing LLVMGXXWITHPATH and LLVMGCCWITHPATH
  variables that add the $(LLVMToolDir) to the path so the CFE tools can find
  the right LLVM tools they depend on.
* Standardize the name of a variable: cferuntime_libdir -> CFERuntimeLibDir

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19095 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
* Use new configuration variables to compute LLVMGCC and LLVMGXX variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19094 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
* Remove --with-llvmgccdir, not needed any more
* Search path for llvm-gcc and llvm-gxx
* Compute LLVMGCCDIR based on install path of llvm-gcc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19093 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of old automake stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19092 91177308-0d34-0410-b5e6-96231b3b80d8

Support the gas option --traditional-format which, for some reason, gets
passed to gccas when the --program-prefix option is used to configure CFE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19091 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore generated files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19090 91177308-0d34-0410-b5e6-96231b3b80d8

Revert last patch until we can figure out how to build executables named
llvmgcc and llvmg++ correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19089 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the Win32 build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19088 91177308-0d34-0410-b5e6-96231b3b80d8

Revert last changes as they introduce CFE build problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19087 91177308-0d34-0410-b5e6-96231b3b80d8

Make parameters to CopyFile use explicit instantiation of sys::Path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19086 91177308-0d34-0410-b5e6-96231b3b80d8

Add project Bytecode to Visual Studio

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19085 91177308-0d34-0410-b5e6-96231b3b80d8

Remove instructions to make aliases for llvmgcc and llvmg++ as the CFE
Build instructions now direct the user to have the CFE generate executables
with those names via the --program-prefix=llvm configure option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19084 91177308-0d34-0410-b5e6-96231b3b80d8

For PR432:
Add instructions for using the --program-prefix=llvm so that the CFE build
produces llvmgcc instead of gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19083 91177308-0d34-0410-b5e6-96231b3b80d8

Fix VC++ compilation error

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19082 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
Remove unix specific code (use of errno and read) from the reader.
Thanks to Jeff Cohen for pointing this out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19081 91177308-0d34-0410-b5e6-96231b3b80d8

Visual Studio project Configure should place the configured header files
in the win32 subtree instead of the src subtree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19080 91177308-0d34-0410-b5e6-96231b3b80d8

Put the CopyFile function explicitly in the sys namespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19079 91177308-0d34-0410-b5e6-96231b3b80d8

Use explicit construction of sys::Path from std::string because the
constructor is "explicit".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19078 91177308-0d34-0410-b5e6-96231b3b80d8

Include <cassert> for Cygwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19077 91177308-0d34-0410-b5e6-96231b3b80d8

Cygwin doesn't like .. through a link, so drop the ..

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19076 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug where system time always equals user time

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19075 91177308-0d34-0410-b5e6-96231b3b80d8

Implement GetTimeUsage correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19074 91177308-0d34-0410-b5e6-96231b3b80d8

Allow compilers that can't distinguish between a class instantiation and
the declaration of a function to compile this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19073 91177308-0d34-0410-b5e6-96231b3b80d8

Provide a getrusage based implementation of GetTotalMemoryUsage and use
the ru_maxrss field as an approximation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19072 91177308-0d34-0410-b5e6-96231b3b80d8

Consistently use the same #if style. Also, fix a bug testing for sbrk(3)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19071 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unnecessary #includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19070 91177308-0d34-0410-b5e6-96231b3b80d8

Be double sure about including sys/stat.h by wrapping the inclusion in
an "#if defined(HAVE_SYS_STAT_H)".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19069 91177308-0d34-0410-b5e6-96231b3b80d8

llvm/Config/unistd.h has gone away, far, far away

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19068 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the #include of llvm/Config/unistd.h as it is no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19067 91177308-0d34-0410-b5e6-96231b3b80d8

Remove this file as there are no LLVM users of it any more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19066 91177308-0d34-0410-b5e6-96231b3b80d8

Incorporate the contents of include/llvm/Config/unistd.h as this is the
last file in LLVM to require the header. After ths commmit, our unistd.h
will go away.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19065 91177308-0d34-0410-b5e6-96231b3b80d8

Remove this file as its not used by anything in LLVM any more. System
dependent behavior is now made through the lib/System interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19064 91177308-0d34-0410-b5e6-96231b3b80d8

Remove these files as they are included by nothing in LLVM any more. The
system dependent functionality has been moved to lib/System.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19063 91177308-0d34-0410-b5e6-96231b3b80d8

Remove these headers. The files that used to #include them don't any more
as most system dependent behavior has been moved to lib/System.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19062 91177308-0d34-0410-b5e6-96231b3b80d8

Remove un-needed #includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19061 91177308-0d34-0410-b5e6-96231b3b80d8

Add HAVE_SYSCONF

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19060 91177308-0d34-0410-b5e6-96231b3b80d8

Use Config/alloca.h instead of alloca.h - pointed out by Duraid and Misha

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19059 91177308-0d34-0410-b5e6-96231b3b80d8

Put some header files back that Win32 needs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19058 91177308-0d34-0410-b5e6-96231b3b80d8

Keep up with lib/System changes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19057 91177308-0d34-0410-b5e6-96231b3b80d8

Fix problems uncovered by VC++ (first time compiled by VC++)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19056 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
* Implement GetMallocUsage to get usage of malloc heap
* Implement GetMemoryUsage to get total memory usage of process
* Implement GetTimeUsage to get elapsed/user/system time

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19055 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
No need for Unix/SUS/Process.cpp any more, just ifdef it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19054 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
* Move system dependent implementation out of this file.
* Make implementation use sys::Process::GetMallocUsage where necessary.
* Make implementation use sys::Process::GetTimeUsage where necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19053 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
* Add checks for sbrk and getpagesize functions
* Alphebetize the checks for functions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19052 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
* Add GetMallocUsage as a wrapper around mallinfo()
* Add GetTotalMemoryUsage to get approximate RSS size
* Add GetTimeUsage to get elapsed/system/user time

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19051 91177308-0d34-0410-b5e6-96231b3b80d8

Wrap long lines

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19050 91177308-0d34-0410-b5e6-96231b3b80d8

For PR351:
This file is no longer needed as system dependent functions have been
encapsulated into lib/System.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19049 91177308-0d34-0410-b5e6-96231b3b80d8

* Use "" for LLVM include files, not <>
* llvm/Config/alloca.h already #includes config.h
* Minor readability/stylistic changes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19048 91177308-0d34-0410-b5e6-96231b3b80d8

Make this compile on Solaris.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19047 91177308-0d34-0410-b5e6-96231b3b80d8