1 files changed, 0 insertions, 162 deletions
diff --git a/contrib/llvm/lib/ExecutionEngine/JIT/Intercept.cpp b/contrib/llvm/lib/ExecutionEngine/JIT/Intercept.cpp
deleted file mode 100644
index 2251a8e6b077..000000000000
--- a/contrib/llvm/lib/ExecutionEngine/JIT/Intercept.cpp
+++ /dev/null
@@ -1,162 +0,0 @@
-//===-- Intercept.cpp - System function interception routines -------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// If a function call occurs to an external function, the JIT is designed to use
-// the dynamic loader interface to find a function to call.  This is useful for
-// calling system calls and library functions that are not available in LLVM.
-// Some system calls, however, need to be handled specially.  For this reason,
-// we intercept some of them here and use our own stubs to handle them.
-//
-//===----------------------------------------------------------------------===//
-
-#include "JIT.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/DynamicLibrary.h"
-#include "llvm/Config/config.h"
-using namespace llvm;
-
-// AtExitHandlers - List of functions to call when the program exits,
-// registered with the atexit() library function.
-static std::vector<void (*)()> AtExitHandlers;
-
-/// runAtExitHandlers - Run any functions registered by the program's
-/// calls to atexit(3), which we intercept and store in
-/// AtExitHandlers.
-///
-static void runAtExitHandlers() {
-  while (!AtExitHandlers.empty()) {
-    void (*Fn)() = AtExitHandlers.back();
-    AtExitHandlers.pop_back();
-    Fn();
-  }
-}
-
-//===----------------------------------------------------------------------===//
-// Function stubs that are invoked instead of certain library calls
-//===----------------------------------------------------------------------===//
-
-// Force the following functions to be linked in to anything that uses the
-// JIT. This is a hack designed to work around the all-too-clever Glibc
-// strategy of making these functions work differently when inlined vs. when
-// not inlined, and hiding their real definitions in a separate archive file
-// that the dynamic linker can't see. For more info, search for
-// 'libc_nonshared.a' on Google, or read http://llvm.org/PR274.
-#if defined(__linux__)
-#if defined(HAVE_SYS_STAT_H)
-#include <sys/stat.h>
-#endif
-#include <fcntl.h>
-#include <unistd.h>
-/* stat functions are redirecting to __xstat with a version number.  On x86-64
- * linking with libc_nonshared.a and -Wl,--export-dynamic doesn't make 'stat'
- * available as an exported symbol, so we have to add it explicitly.
- */
-namespace {
-class StatSymbols {
-public:
-  StatSymbols() {
-    sys::DynamicLibrary::AddSymbol("stat", (void*)(intptr_t)stat);
-    sys::DynamicLibrary::AddSymbol("fstat", (void*)(intptr_t)fstat);
-    sys::DynamicLibrary::AddSymbol("lstat", (void*)(intptr_t)lstat);
-    sys::DynamicLibrary::AddSymbol("stat64", (void*)(intptr_t)stat64);
-    sys::DynamicLibrary::AddSymbol("\x1stat64", (void*)(intptr_t)stat64);
-    sys::DynamicLibrary::AddSymbol("\x1open64", (void*)(intptr_t)open64);
-    sys::DynamicLibrary::AddSymbol("\x1lseek64", (void*)(intptr_t)lseek64);
-    sys::DynamicLibrary::AddSymbol("fstat64", (void*)(intptr_t)fstat64);
-    sys::DynamicLibrary::AddSymbol("lstat64", (void*)(intptr_t)lstat64);
-    sys::DynamicLibrary::AddSymbol("atexit", (void*)(intptr_t)atexit);
-    sys::DynamicLibrary::AddSymbol("mknod", (void*)(intptr_t)mknod);
-  }
-};
-}
-static StatSymbols initStatSymbols;
-#endif // __linux__
-
-// jit_exit - Used to intercept the "exit" library call.
-static void jit_exit(int Status) {
-  runAtExitHandlers();   // Run atexit handlers...
-  exit(Status);
-}
-
-// jit_atexit - Used to intercept the "atexit" library call.
-static int jit_atexit(void (*Fn)()) {
-  AtExitHandlers.push_back(Fn);    // Take note of atexit handler...
-  return 0;  // Always successful
-}
-
-static int jit_noop() {
-  return 0;
-}
-
-//===----------------------------------------------------------------------===//
-//
-/// getPointerToNamedFunction - This method returns the address of the specified
-/// function by using the dynamic loader interface.  As such it is only useful
-/// for resolving library symbols, not code generated symbols.
-///
-void *JIT::getPointerToNamedFunction(const std::string &Name,
-                                     bool AbortOnFailure) {
-  if (!isSymbolSearchingDisabled()) {
-    // Check to see if this is one of the functions we want to intercept.  Note,
-    // we cast to intptr_t here to silence a -pedantic warning that complains
-    // about casting a function pointer to a normal pointer.
-    if (Name == "exit") return (void*)(intptr_t)&jit_exit;
-    if (Name == "atexit") return (void*)(intptr_t)&jit_atexit;
-
-    // We should not invoke parent's ctors/dtors from generated main()!
-    // On Mingw and Cygwin, the symbol __main is resolved to
-    // callee's(eg. tools/lli) one, to invoke wrong duplicated ctors
-    // (and register wrong callee's dtors with atexit(3)).
-    // We expect ExecutionEngine::runStaticConstructorsDestructors()
-    // is called before ExecutionEngine::runFunctionAsMain() is called.
-    if (Name == "__main") return (void*)(intptr_t)&jit_noop;
-
-    const char *NameStr = Name.c_str();
-    // If this is an asm specifier, skip the sentinal.
-    if (NameStr[0] == 1) ++NameStr;
-
-    // If it's an external function, look it up in the process image...
-    void *Ptr = sys::DynamicLibrary::SearchForAddressOfSymbol(NameStr);
-    if (Ptr) return Ptr;
-
-    // If it wasn't found and if it starts with an underscore ('_') character,
-    // and has an asm specifier, try again without the underscore.
-    if (Name[0] == 1 && NameStr[0] == '_') {
-      Ptr = sys::DynamicLibrary::SearchForAddressOfSymbol(NameStr+1);
-      if (Ptr) return Ptr;
-    }
-
-    // Darwin/PPC adds $LDBLStub suffixes to various symbols like printf.  These
-    // are references to hidden visibility symbols that dlsym cannot resolve.
-    // If we have one of these, strip off $LDBLStub and try again.
-#if defined(__APPLE__) && defined(__ppc__)
-    if (Name.size() > 9 && Name[Name.size()-9] == '$' &&
-        memcmp(&Name[Name.size()-8], "LDBLStub", 8) == 0) {
-      // First try turning $LDBLStub into $LDBL128. If that fails, strip it off.
-      // This mirrors logic in libSystemStubs.a.
-      std::string Prefix = std::string(Name.begin(), Name.end()-9);
-      if (void *Ptr = getPointerToNamedFunction(Prefix+"$LDBL128", false))
-        return Ptr;
-      if (void *Ptr = getPointerToNamedFunction(Prefix, false))
-        return Ptr;
-    }
-#endif
-  }
-
-  /// If a LazyFunctionCreator is installed, use it to get/create the function.
-  if (LazyFunctionCreator)
-    if (void *RP = LazyFunctionCreator(Name))
-      return RP;
-
-  if (AbortOnFailure) {
-    report_fatal_error("Program used external function '"+Name+
-                      "' which could not be resolved!");
-  }
-  return 0;
-}