InstrProfilingPlatformDarwin.c 3.1 KB

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  1. /*===- InstrProfilingPlatformDarwin.c - Profile data on Darwin ------------===*\
  2. |*
  3. |* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. |* See https://llvm.org/LICENSE.txt for license information.
  5. |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. |*
  7. \*===----------------------------------------------------------------------===*/
  8. // Note: This is linked into the Darwin kernel, and must remain compatible
  9. // with freestanding compilation. See `darwin_add_builtin_libraries`.
  10. #include "InstrProfiling.h"
  11. #include "InstrProfilingInternal.h"
  12. #if defined(__APPLE__)
  13. /* Use linker magic to find the bounds of the Data section. */
  14. COMPILER_RT_VISIBILITY
  15. extern __llvm_profile_data
  16. DataStart __asm("section$start$__DATA$" INSTR_PROF_DATA_SECT_NAME);
  17. COMPILER_RT_VISIBILITY
  18. extern __llvm_profile_data
  19. DataEnd __asm("section$end$__DATA$" INSTR_PROF_DATA_SECT_NAME);
  20. COMPILER_RT_VISIBILITY
  21. extern char
  22. NamesStart __asm("section$start$__DATA$" INSTR_PROF_NAME_SECT_NAME);
  23. COMPILER_RT_VISIBILITY
  24. extern char NamesEnd __asm("section$end$__DATA$" INSTR_PROF_NAME_SECT_NAME);
  25. COMPILER_RT_VISIBILITY
  26. extern char
  27. CountersStart __asm("section$start$__DATA$" INSTR_PROF_CNTS_SECT_NAME);
  28. COMPILER_RT_VISIBILITY
  29. extern char CountersEnd __asm("section$end$__DATA$" INSTR_PROF_CNTS_SECT_NAME);
  30. COMPILER_RT_VISIBILITY
  31. extern char
  32. BitmapStart __asm("section$start$__DATA$" INSTR_PROF_BITS_SECT_NAME);
  33. COMPILER_RT_VISIBILITY
  34. extern char BitmapEnd __asm("section$end$__DATA$" INSTR_PROF_BITS_SECT_NAME);
  35. COMPILER_RT_VISIBILITY
  36. extern uint32_t
  37. OrderFileStart __asm("section$start$__DATA$" INSTR_PROF_ORDERFILE_SECT_NAME);
  38. COMPILER_RT_VISIBILITY
  39. extern ValueProfNode
  40. VNodesStart __asm("section$start$__DATA$" INSTR_PROF_VNODES_SECT_NAME);
  41. COMPILER_RT_VISIBILITY
  42. extern ValueProfNode
  43. VNodesEnd __asm("section$end$__DATA$" INSTR_PROF_VNODES_SECT_NAME);
  44. COMPILER_RT_VISIBILITY
  45. const __llvm_profile_data *__llvm_profile_begin_data(void) {
  46. return &DataStart;
  47. }
  48. COMPILER_RT_VISIBILITY
  49. const __llvm_profile_data *__llvm_profile_end_data(void) { return &DataEnd; }
  50. COMPILER_RT_VISIBILITY
  51. const char *__llvm_profile_begin_names(void) { return &NamesStart; }
  52. COMPILER_RT_VISIBILITY
  53. const char *__llvm_profile_end_names(void) { return &NamesEnd; }
  54. COMPILER_RT_VISIBILITY
  55. char *__llvm_profile_begin_counters(void) { return &CountersStart; }
  56. COMPILER_RT_VISIBILITY
  57. char *__llvm_profile_end_counters(void) { return &CountersEnd; }
  58. COMPILER_RT_VISIBILITY
  59. char *__llvm_profile_begin_bitmap(void) { return &BitmapStart; }
  60. COMPILER_RT_VISIBILITY
  61. char *__llvm_profile_end_bitmap(void) { return &BitmapEnd; }
  62. COMPILER_RT_VISIBILITY
  63. uint32_t *__llvm_profile_begin_orderfile(void) { return &OrderFileStart; }
  64. COMPILER_RT_VISIBILITY
  65. ValueProfNode *__llvm_profile_begin_vnodes(void) {
  66. return &VNodesStart;
  67. }
  68. COMPILER_RT_VISIBILITY
  69. ValueProfNode *__llvm_profile_end_vnodes(void) { return &VNodesEnd; }
  70. COMPILER_RT_VISIBILITY ValueProfNode *CurrentVNode = &VNodesStart;
  71. COMPILER_RT_VISIBILITY ValueProfNode *EndVNode = &VNodesEnd;
  72. COMPILER_RT_VISIBILITY int __llvm_write_binary_ids(ProfDataWriter *Writer) {
  73. return 0;
  74. }
  75. #endif