Remove dead code for generated code coverage.

src/ia32/assembler-ia32.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 277 matching lines @@
 }
 
 
 // -----------------------------------------------------------------------------
 // Implementation of Assembler.
 
 // Emit a single byte. Must always be inlined.
 #define EMIT(x)                                 \
   *pc_++ = (x)
 
-
-#ifdef GENERATED_CODE_COVERAGE
-static void InitCoverageLog();
-#endif
-
 Assembler::Assembler(Isolate* isolate, void* buffer, int buffer_size)
     : AssemblerBase(isolate, buffer, buffer_size) {
 // Clear the buffer in debug mode unless it was provided by the
 // caller in which case we can't be sure it's okay to overwrite
 // existing code in it; see CodePatcher::CodePatcher(...).
 #ifdef DEBUG
   if (own_buffer_) {
     memset(buffer_, 0xCC, buffer_size_);  // int3
   }
 #endif
 
   reloc_info_writer.Reposition(buffer_ + buffer_size_, pc_);
-
-#ifdef GENERATED_CODE_COVERAGE
-  InitCoverageLog();
-#endif
 }
 
 
 void Assembler::GetCode(CodeDesc* desc) {
   // Finalize code (at this point overflow() may be true, but the gap ensures
   // that we are still not overlapping instructions and relocation info).
   DCHECK(pc_ <= reloc_info_writer.pos());  // No overlap.
   // Set up code descriptor.
   desc->buffer = buffer_;
   desc->buffer_size = buffer_size_;
@@ skipping 2734 matching lines @@
   // Don't record external references unless the heap will be serialized.
   if (rmode == RelocInfo::EXTERNAL_REFERENCE &&
       !serializer_enabled() && !emit_debug_code()) {
     return;
   }
   RelocInfo rinfo(isolate(), pc_, rmode, data, NULL);
   reloc_info_writer.Write(&rinfo);
 }
 
 
-#ifdef GENERATED_CODE_COVERAGE
-static FILE* coverage_log = NULL;
-
-
-static void InitCoverageLog() {
-  char* file_name = getenv("V8_GENERATED_CODE_COVERAGE_LOG");
-  if (file_name != NULL) {
-    coverage_log = fopen(file_name, "aw+");
-  }
-}
-
-
-void LogGeneratedCodeCoverage(const char* file_line) {
-  const char* return_address = (&file_line)[-1];
-  char* push_insn = const_cast<char*>(return_address - 12);
-  push_insn[0] = 0xeb;  // Relative branch insn.
-  push_insn[1] = 13;    // Skip over coverage insns.
-  if (coverage_log != NULL) {
-    fprintf(coverage_log, "%s\n", file_line);
-    fflush(coverage_log);
-  }
-}
-
-#endif
-
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32