1  /*===- InstrProfilingPlatformLinux.c - Profile data Linux platform ------===*\
 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(__linux__) || defined(__FreeBSD__)
13  #include <stdlib.h>
14  
15  extern __llvm_profile_data __start___llvm_prf_data
16      __attribute__((visibility("hidden")));
17  extern __llvm_profile_data __stop___llvm_prf_data
18      __attribute__((visibility("hidden")));
19  extern uint64_t __start___llvm_prf_cnts __attribute__((visibility("hidden")));
20  extern uint64_t __stop___llvm_prf_cnts __attribute__((visibility("hidden")));
21  extern char __start___llvm_prf_names __attribute__((visibility("hidden")));
22  extern char __stop___llvm_prf_names __attribute__((visibility("hidden")));
23  
24  __attribute__((visibility("hidden"))) const __llvm_profile_data *
25  __llvm_profile_begin_data(void) {
26    return &__start___llvm_prf_data;
27  }
28  __attribute__((visibility("hidden"))) const __llvm_profile_data *
29  __llvm_profile_end_data(void) {
30    return &__stop___llvm_prf_data;
31  }
32  __attribute__((visibility("hidden"))) const char *__llvm_profile_begin_names(
33      void) {
34    return &__start___llvm_prf_names;
35  }
36  __attribute__((visibility("hidden"))) const char *__llvm_profile_end_names(
37      void) {
38    return &__stop___llvm_prf_names;
39  }
40  __attribute__((visibility("hidden"))) uint64_t *__llvm_profile_begin_counters(
41      void) {
42    return &__start___llvm_prf_cnts;
43  }
44  __attribute__((visibility("hidden"))) uint64_t *__llvm_profile_end_counters(
45      void) {
46    return &__stop___llvm_prf_cnts;
47  }
48  #endif