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InstrProfilingPlatformDarwin.c revision 1.1.1.1.2.2 
      1 /*===- InstrProfilingPlatformDarwin.c - Profile data on Darwin ------------===*\
      2 |*
      3 |*                     The LLVM Compiler Infrastructure
      4 |*
      5 |* This file is distributed under the University of Illinois Open Source
      6 |* License. See LICENSE.TXT for details.
      7 |*
      8 \*===----------------------------------------------------------------------===*/
      9 
     10 #include "InstrProfiling.h"
     11 
     12 #if defined(__APPLE__)
     13 /* Use linker magic to find the bounds of the Data section. */
     14 extern __llvm_profile_data DataStart __asm("section$start$__DATA$__llvm_prf_data");
     15 extern __llvm_profile_data DataEnd   __asm("section$end$__DATA$__llvm_prf_data");
     16 extern char NamesStart __asm("section$start$__DATA$__llvm_prf_names");
     17 extern char NamesEnd   __asm("section$end$__DATA$__llvm_prf_names");
     18 extern uint64_t CountersStart __asm("section$start$__DATA$__llvm_prf_cnts");
     19 extern uint64_t CountersEnd   __asm("section$end$__DATA$__llvm_prf_cnts");
     20 
     21 const __llvm_profile_data *__llvm_profile_data_begin(void) {
     22   return &DataStart;
     23 }
     24 const __llvm_profile_data *__llvm_profile_data_end(void) {
     25   return &DataEnd;
     26 }
     27 const char *__llvm_profile_names_begin(void) { return &NamesStart; }
     28 const char *__llvm_profile_names_end(void) { return &NamesEnd; }
     29 uint64_t *__llvm_profile_counters_begin(void) { return &CountersStart; }
     30 uint64_t *__llvm_profile_counters_end(void) { return &CountersEnd; }
     31 #endif
     32