[compiler-rt] [PGO][Offload] Fix profile function visibility (PR #127257)

[Ethan Luis McDonough via llvm-commits]

https://github.com/EthanLuisMcDonough created https://github.com/llvm/llvm-project/pull/127257

This pull request fixes an issue that was introduced in #93365. `__llvm_write_custom_profile` visibility was causing issues on Darwin.

>From ac08c21ec9cb50489f2fcd8c3ef0b275aa6192ee Mon Sep 17 00:00:00 2001
From: Ethan Luis McDonough <ethanluismcdonough at gmail.com>
Date: Fri, 14 Feb 2025 14:39:26 -0600
Subject: [PATCH] [PGO][Offload] Fix profile function visibility

---
 compiler-rt/lib/profile/InstrProfilingFile.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/compiler-rt/lib/profile/InstrProfilingFile.c b/compiler-rt/lib/profile/InstrProfilingFile.c
index 503d159fd9817..673cb9a5208bb 100644
--- a/compiler-rt/lib/profile/InstrProfilingFile.c
+++ b/compiler-rt/lib/profile/InstrProfilingFile.c
@@ -1362,12 +1362,10 @@ COMPILER_RT_VISIBILITY int __llvm_profile_set_file_object(FILE *File,
   return 0;
 }
 
-int __llvm_write_custom_profile(const char *Target,
-                                const __llvm_profile_data *DataBegin,
-                                const __llvm_profile_data *DataEnd,
-                                const char *CountersBegin,
-                                const char *CountersEnd, const char *NamesBegin,
-                                const char *NamesEnd) {
+COMPILER_RT_VISIBILITY int __llvm_write_custom_profile(
+    const char *Target, const __llvm_profile_data *DataBegin,
+    const __llvm_profile_data *DataEnd, const char *CountersBegin,
+    const char *CountersEnd, const char *NamesBegin, const char *NamesEnd) {
   int ReturnValue = 0, FilenameLength, TargetLength;
   char *FilenameBuf, *TargetFilename;
   const char *Filename;