1 files changed, 25 insertions, 0 deletions
diff --git a/compiler-rt/lib/profile/InstrProfilingPlatformDarwin.c b/compiler-rt/lib/profile/InstrProfilingPlatformDarwin.c
new file mode 100644
index 00000000000..de388ee5ebd
--- /dev/null
+++ b/compiler-rt/lib/profile/InstrProfilingPlatformDarwin.c
@@ -0,0 +1,25 @@
+/*===- InstrProfilingDarwin.c - Profile data on Darwin --------------------===*\
+|*
+|*                     The LLVM Compiler Infrastructure
+|*
+|* This file is distributed under the University of Illinois Open Source
+|* License. See LICENSE.TXT for details.
+|*
+\*===----------------------------------------------------------------------===*/
+
+#include "InstrProfiling.h"
+
+/* Use linker magic to find the bounds of the Data section. */
+extern __llvm_pgo_data DataStart __asm("section$start$__DATA$__llvm_pgo_data");
+extern __llvm_pgo_data DataEnd   __asm("section$end$__DATA$__llvm_pgo_data");
+extern char NamesStart __asm("section$start$__DATA$__llvm_pgo_names");
+extern char NamesEnd   __asm("section$end$__DATA$__llvm_pgo_names");
+extern uint64_t CountersStart __asm("section$start$__DATA$__llvm_pgo_cnts");
+extern uint64_t CountersEnd   __asm("section$end$__DATA$__llvm_pgo_cnts");
+
+const __llvm_pgo_data *__llvm_pgo_data_begin() { return &DataStart; }
+const __llvm_pgo_data *__llvm_pgo_data_end()   { return &DataEnd; }
+const char *__llvm_pgo_names_begin() { return &NamesStart; }
+const char *__llvm_pgo_names_end()   { return &NamesEnd; }
+const uint64_t *__llvm_pgo_counters_begin() { return &CountersStart; }
+const uint64_t *__llvm_pgo_counters_end()   { return &CountersEnd; }