Add rationale for the MAP_ANONYMOUS vs. MAP_ANON flags.

llvm-svn: 7368
2003-07-28 19:26:19 +00:00 · 2003-07-28 19:26:19 +00:00 · c0ae1cd93e
parent b7ea12c550
commit c0ae1cd93e
1 changed files with 1 additions and 0 deletions
--- a/llvm/lib/ExecutionEngine/JIT/Emitter.cpp
+++ b/llvm/lib/ExecutionEngine/JIT/Emitter.cpp
@ -73,6 +73,7 @@ static void *getMemory(unsigned NumPages) {
  static const long pageSize = sysconf(_SC_PAGESIZE);

 #if defined(i386) || defined(__i386__) || defined(__x86__)
+  /* Linux and *BSD tend to have these flags named differently. */
 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
 # define MAP_ANONYMOUS MAP_ANON
 #endif