[compiler-rt] 2fe8498 - mmapForContinuousMode: Redo #95702: Align Linux's impl to __APPLE__'s a little.

[NAKAMURA Takumi via llvm-commits]

Author: NAKAMURA Takumi
Date: 2024-06-21T09:38:25+09:00
New Revision: 2fe8498654fe5db68c585fc9fa4cd84d634e53df

URL: https://github.com/llvm/llvm-project/commit/2fe8498654fe5db68c585fc9fa4cd84d634e53df
DIFF: https://github.com/llvm/llvm-project/commit/2fe8498654fe5db68c585fc9fa4cd84d634e53df.diff

LOG: mmapForContinuousMode: Redo #95702: Align Linux's impl to __APPLE__'s a little.

I've made this small cosmetic changes,
`s/CountersOffsetInBiasMode/FileOffsetToCounters/`

Added: 
    

Modified: 
    compiler-rt/lib/profile/InstrProfilingFile.c

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/profile/InstrProfilingFile.c b/compiler-rt/lib/profile/InstrProfilingFile.c
index b88e0b4b0b2ab..54ee59c30722f 100644
--- a/compiler-rt/lib/profile/InstrProfilingFile.c
+++ b/compiler-rt/lib/profile/InstrProfilingFile.c
@@ -243,18 +243,20 @@ static int mmapForContinuousMode(uint64_t CurrentFileOffset, FILE *File) {
   if (getProfileFileSizeForMerging(File, &FileSize))
     return 1;
 
+  int Fileno = fileno(File);
+  uint64_t FileOffsetToCounters =
+      sizeof(__llvm_profile_header) + __llvm_write_binary_ids(NULL) + DataSize;
+
   /* Map the profile. */
   char *Profile = (char *)mmap(NULL, FileSize, PROT_READ | PROT_WRITE,
-                               MAP_SHARED, fileno(File), 0);
+                               MAP_SHARED, Fileno, 0);
   if (Profile == MAP_FAILED) {
     PROF_ERR("Unable to mmap profile: %s\n", strerror(errno));
     return 1;
   }
-  const uint64_t CountersOffsetInBiasMode =
-      sizeof(__llvm_profile_header) + __llvm_write_binary_ids(NULL) + DataSize;
   /* Update the profile fields based on the current mapping. */
   INSTR_PROF_PROFILE_COUNTER_BIAS_VAR =
-      (intptr_t)Profile - (uintptr_t)CountersBegin + CountersOffsetInBiasMode;
+      (intptr_t)Profile - (uintptr_t)CountersBegin + FileOffsetToCounters;
 
   /* Return the memory allocated for counters to OS. */
   lprofReleaseMemoryPagesToOS((uintptr_t)CountersBegin, (uintptr_t)CountersEnd);