sha512.c: there apparently is ILP32 PowerPC platform, where it is safe to

inline 64-bit assembler instructions. Normally it's inappropriate, because
signalling doesn't preserve upper halves of general purpose registers.
Meaning that it's only safe if signals are blocked for the time "wide"
code executes.
PR: 1998

diff --git a/crypto/sha/sha512.c b/crypto/sha/sha512.c
index d1aa7614b2f6bab444b0cd4d98c23330b82aaf68..cbc0e58c48865a4318daeae1c35a2121d501e418 100644 (file)
--- a/crypto/sha/sha512.c
+++ b/crypto/sha/sha512.c
@@ -380,7 +380,7 @@ static const SHA_LONG64 K512[80] = {
                                ((SHA_LONG64)hi)<<32|lo;        })
 #   endif
 #  elif (defined(_ARCH_PPC) && defined(__64BIT__)) || defined(_ARCH_PPC64)
-#   define ROTR(a,n)   ({ unsigned long ret;           \
+#   define ROTR(a,n)   ({ SHA_LONG64 ret;              \
                                asm ("rotrdi %0,%1,%2"  \
                                : "=r"(ret)             \
                                : "r"(a),"K"(n)); ret;  })