/**************************************************************************
*
- * Copyright 2009 VMware, Inc.
+ * Copyright 2010 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
**************************************************************************/
-#include "pipe/p_config.h"
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS
+#endif
-#include "lp_bld_misc.h"
+#ifndef __STDC_CONSTANT_MACROS
+#define __STDC_CONSTANT_MACROS
+#endif
+
+#include <llvm-c/Core.h>
+#include <llvm-c/ExecutionEngine.h>
+#include <llvm/Target/TargetOptions.h>
+#include <llvm/ExecutionEngine/ExecutionEngine.h>
+#include <llvm/ExecutionEngine/JITEventListener.h>
+#include <llvm/Support/CommandLine.h>
+#include <llvm/Support/PrettyStackTrace.h>
+#include "pipe/p_config.h"
+#include "util/u_debug.h"
-#ifndef LLVM_NATIVE_ARCH
-namespace llvm {
- extern void LinkInJIT();
+/**
+ * Register the engine with oprofile.
+ *
+ * This allows to see the LLVM IR function names in oprofile output.
+ *
+ * To actually work LLVM needs to be built with the --with-oprofile configure
+ * option.
+ *
+ * Also a oprofile:oprofile user:group is necessary. Which is not created by
+ * default on some distributions.
+ */
+extern "C" void
+lp_register_oprofile_jit_event_listener(LLVMExecutionEngineRef EE)
+{
+ llvm::unwrap(EE)->RegisterJITEventListener(llvm::createOProfileJITEventListener());
}
-void
-LLVMLinkInJIT(void)
+extern "C" void
+lp_set_target_options(void)
{
- llvm::LinkInJIT();
-}
+#if defined(DEBUG)
+#if HAVE_LLVM >= 0x0207
+ llvm::JITEmitDebugInfo = true;
+#endif
+#endif
+ /*
+ * LLVM revision 123367 switched the default stack alignment to 16 bytes on
+ * Linux (and several other Unices in later revisions), to match recent gcc
+ * versions.
+ *
+ * However our drivers can be loaded by old binary applications, still
+ * maintaining a 4 bytes stack alignment. Therefore we must tell LLVM here
+ * to only assume a 4 bytes alignment for backwards compatibility.
+ */
+#if defined(PIPE_ARCH_X86)
+#if HAVE_LLVM >= 0x0300
+ llvm::StackAlignmentOverride = 4;
+#else
+ llvm::StackAlignment = 4;
+#endif
+#endif
-extern "C" int X86TargetMachineModule;
+#if defined(DEBUG) || defined(PROFILE)
+ llvm::NoFramePointerElim = true;
+#endif
+ llvm::NoExcessFPPrecision = false;
-int
-LLVMInitializeNativeTarget(void)
-{
-#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
- X86TargetMachineModule = 1;
+ /* XXX: Investigate this */
+#if 0
+ llvm::UnsafeFPMath = true;
#endif
- return 0;
+
+#if HAVE_LLVM < 0x0209
+ /*
+ * LLVM will generate MMX instructions for vectors <= 64 bits, leading to
+ * innefficient code, and in 32bit systems, to the corruption of the FPU
+ * stack given that it expects the user to generate the EMMS instructions.
+ *
+ * See also:
+ * - http://llvm.org/bugs/show_bug.cgi?id=3287
+ * - http://l4.me.uk/post/2009/06/07/llvm-wrinkle-3-configuration-what-configuration/
+ *
+ * The -disable-mmx global option can be specified only once since we
+ * dynamically link against LLVM it will reside in a separate shared object,
+ * which may or not be delete when this shared object is, so we use the
+ * llvm::DisablePrettyStackTrace variable (which we set below and should
+ * reside in the same shared library) to determine whether the -disable-mmx
+ * option has been set or not.
+ *
+ * Thankfully this ugly hack is not necessary on LLVM 2.9 onwards.
+ */
+ if (!llvm::DisablePrettyStackTrace) {
+ static boolean first = TRUE;
+ static const char* options[] = {
+ "prog",
+ "-disable-mmx"
+ };
+ assert(first);
+ llvm::cl::ParseCommandLineOptions(2, const_cast<char**>(options));
+ first = FALSE;
+ }
+#endif
+
+ /*
+ * By default LLVM adds a signal handler to output a pretty stack trace.
+ * This signal handler is never removed, causing problems when unloading the
+ * shared object where the gallium driver resides.
+ */
+ llvm::DisablePrettyStackTrace = true;
}
-#endif
+extern "C" void
+lp_func_delete_body(LLVMValueRef FF)
+{
+ llvm::Function *func = llvm::unwrap<llvm::Function>(FF);
+ func->deleteBody();
+}
-/*
- * Hack to allow the linking of release LLVM static libraries on a debug build.
- *
- * See also:
- * - http://social.msdn.microsoft.com/Forums/en-US/vclanguage/thread/7234ea2b-0042-42ed-b4e2-5d8644dfb57d
- */
-#if defined(_MSC_VER) && defined(_DEBUG)
-#include <crtdefs.h>
-extern "C" {
- _CRTIMP void __cdecl _invalid_parameter_noinfo(void) {}
+extern "C"
+LLVMValueRef
+lp_build_load_volatile(LLVMBuilderRef B, LLVMValueRef PointerVal,
+ const char *Name)
+{
+ return llvm::wrap(llvm::unwrap(B)->CreateLoad(llvm::unwrap(PointerVal), true, Name));
}
-#endif
+
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