X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/148c364305b6d96766336c3a09f033064765f074..981a9e5d5e3af6c06ad8b3f821928852068227e4:/base/asm-common.h

diff --git a/base/asm-common.h b/base/asm-common.h
index 5a5063ac..9257d762 100644
--- a/base/asm-common.h
+++ b/base/asm-common.h
@@ -106,6 +106,12 @@ name:
 #  define WANT_PIC 1
 #endif
 
+// Don't make the stack executable by default.
+#ifndef FORCE_EXECUTABLE_STACK
+	.pushsection .note.GNU-stack, "", _SECTTY(progbits)
+	.popsection
+#endif
+
 #endif
 
 ///--------------------------------------------------------------------------
@@ -216,11 +222,11 @@ name:
 #  define INTADDR__1(addr, got) addr
 #endif
 
-// Permutations for SIMD instructions.  SHUF(A, B, C, D) is an immediate,
+// Permutations for SIMD instructions.  SHUF(D, C, B, A) is an immediate,
 // suitable for use in `pshufd' or `shufpd', which copies element A
 // (0 <= A < 4) of the source to element 0 of the destination, element B to
 // element 1, element C to element 2, and element D to element 3.
-#define SHUF(a, b, c, d) ((a) + 4*(b) + 16*(c) + 64*(d))
+#define SHUF(d, c, b, a) (64*(d) + 16*(c) + 4*(b) + (a))
 
 // Map register names to their individual pieces.
 
@@ -1209,11 +1215,6 @@ name:
 #  define SIZE_OBJ(name)
 #endif
 
-#if __ELF__ && !defined(FORCE_EXECUTABLE_STACK)
-	.pushsection .note.GNU-stack, "", _SECTTY(progbits)
-	.popsection
-#endif
-
 ///----- That's all, folks --------------------------------------------------
 
 #endif