1 files changed, 0 insertions, 62 deletions
diff --git a/tools/jello/Callback.cpp b/tools/jello/Callback.cpp
deleted file mode 100644
index b843e10689..0000000000
--- a/tools/jello/Callback.cpp
+++ /dev/null
@@ -1,62 +0,0 @@
-//===-- Callback.cpp - Trap handler for function resolution ---------------===//
-//
-// This file defines the SIGSEGV handler which is invoked when a reference to a
-// non-codegen'd function is found.
-//
-//===----------------------------------------------------------------------===//
-
-#include "VM.h"
-#include "Support/Statistic.h"
-#include <signal.h>
-#include <ucontext.h>
-#include <iostream>
-
-static VM *TheVM = 0;
-
-static void TrapHandler(int TN, siginfo_t *SI, ucontext_t *ucp) {
-  assert(TN == SIGSEGV && "Should be SIGSEGV!");
-
-#ifdef REG_EIP   /* this code does not compile on Sparc! */
-  if (SI->si_code != SEGV_MAPERR || SI->si_addr != 0 ||
-      ucp->uc_mcontext.gregs[REG_EIP] != 0) {
-    std::cerr << "Bad SEGV encountered!\n";
-    abort();
-  }
-
-  // The call instruction should have pushed the return value onto the stack...
-  unsigned RefAddr = *(unsigned*)ucp->uc_mcontext.gregs[REG_ESP];
-  RefAddr -= 4;  // Backtrack to the reference itself...
-
-  DEBUG(std::cerr << "In SEGV handler! Addr=0x" << std::hex << RefAddr
-                  << " ESP=0x" << ucp->uc_mcontext.gregs[REG_ESP] << std::dec
-                  << ": Resolving call to function: "
-                  << TheVM->getFunctionReferencedName((void*)RefAddr) << "\n");
-
-  // Sanity check to make sure this really is a call instruction...
-  assert(((unsigned char*)RefAddr)[-1] == 0xE8 && "Not a call instr!");
-  
-  unsigned NewVal = (unsigned)TheVM->resolveFunctionReference((void*)RefAddr);
-
-  // Rewrite the call target... so that we don't fault every time we execute
-  // the call.
-  *(unsigned*)RefAddr = NewVal-RefAddr-4;    
-
-  // Change the instruction pointer to be the real target of the call...
-  ucp->uc_mcontext.gregs[REG_EIP] = NewVal;
-
-#endif
-}
-
-
-void VM::registerCallback() {
-  TheVM = this;
-
-  // Register the signal handler...
-  struct sigaction SA;
-  SA.sa_sigaction = (void (*)(int, siginfo_t*, void*))TrapHandler;
-  sigfillset(&SA.sa_mask);               // Block all signals while codegen'ing
-  SA.sa_flags = SA_NOCLDSTOP|SA_SIGINFO; // Get siginfo
-  sigaction(SIGSEGV, &SA, 0);            // Install the handler
-}
-
-