freebsd-dev/contrib/llvm/patches/patch-r243830-arm-disable-clear-cache.diff
Dimitry Andric a426b286c8 Add the clang patch for r265477. While here, add a description to the
patch for r263619, and unify all the URLs to point to svnweb.
2014-05-24 22:27:31 +00:00

20 lines
940 B
Diff

This patch ensures __clear_cache is not called on arm. In earlier versions of
clang, this special builtin was emitted as a function call, leading to link
errors.
Introduced here: http://svnweb.freebsd.org/changeset/base/243830
Index: lib/Support/Unix/Memory.inc
===================================================================
--- lib/Support/Unix/Memory.inc
+++ lib/Support/Unix/Memory.inc
@@ -332,7 +332,7 @@ void Memory::InvalidateInstructionCache(const void
for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize)
asm volatile("icbi 0, %0" : : "r"(Line));
asm volatile("isync");
-# elif (defined(__arm__) || defined(__aarch64__)) && defined(__GNUC__)
+# elif (defined(__arm__) || defined(__aarch64__)) && defined(__GNUC__) && !defined(__FreeBSD__)
// FIXME: Can we safely always call this for __GNUC__ everywhere?
const char *Start = static_cast<const char *>(Addr);
const char *End = Start + Len;