* Stop hard-coding a value for beginning of emitted code on Sparc since we can
now handle far calls (i.e., beyond the 30-bit limit in call instructions).
* As a side-effect, this allows us to unify and clean up the mmap() call and
code around it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7381 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/JIT/JITEmitter.cpp b/lib/ExecutionEngine/JIT/JITEmitter.cpp
index 9e62f13..476ca45 100644
--- a/lib/ExecutionEngine/JIT/JITEmitter.cpp
+++ b/lib/ExecutionEngine/JIT/JITEmitter.cpp
@@ -76,20 +76,16 @@
/* Linux and *BSD tend to have these flags named differently. */
#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
# define MAP_ANONYMOUS MAP_ANON
-#endif
- pa = mmap(0, pageSize*NumPages, PROT_READ|PROT_WRITE|PROT_EXEC,
- MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); /* fd = 0 */
+#endif /* defined(MAP_ANON) && !defined(MAP_ANONYMOUS) */
+#define fd 0
#elif defined(sparc) || defined(__sparc__) || defined(__sparcv9)
- static unsigned long Counter = 0;
- pa = mmap((void*)(0x140000000UL+Counter), pageSize*NumPages,
- PROT_READ|PROT_WRITE|PROT_EXEC,
- MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0); /* fd = -1 */
- Counter += pageSize*NumPages;
+#define fd -1
#else
- std::cerr << "This architecture is not supported by the JIT\n";
+ std::cerr << "This architecture is not supported by the JIT!\n";
abort();
#endif
-
+ pa = mmap(0, pageSize*NumPages, PROT_READ|PROT_WRITE|PROT_EXEC,
+ MAP_PRIVATE|MAP_ANONYMOUS, fd, 0);
if (pa == MAP_FAILED) {
perror("mmap");
abort();