From 2abf7d7bc4c3d6c019ba5aedb65f39ba53db1b8b Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Fri, 24 Nov 2017 17:53:25 -0500
Subject: [PATCH] Fix compile on MIPS due to missing definition of NULL
 Whitespace check-in

---
 sse-simd.cpp | 83 +++++++++++++++++++++++++++-------------------------
 1 file changed, 43 insertions(+), 40 deletions(-)

diff --git a/sse-simd.cpp b/sse-simd.cpp
index 87cbeaff..868d445d 100644
--- a/sse-simd.cpp
+++ b/sse-simd.cpp
@@ -10,6 +10,9 @@
 #include "config.h"
 #include "cpu.h"
 
+// Needed by MIPS for definition of NULL
+#include "stdcpp.h"
+
 #ifdef CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY
 # include <signal.h>
 # include <setjmp.h>
@@ -33,71 +36,71 @@ extern "C" {
 
 extern "C"
 {
-	static jmp_buf s_jmpNoSSE2;
-	static void SigIllHandlerSSE2(int)
-	{
-		longjmp(s_jmpNoSSE2, 1);
-	}
+    static jmp_buf s_jmpNoSSE2;
+    static void SigIllHandlerSSE2(int)
+    {
+        longjmp(s_jmpNoSSE2, 1);
+    }
 }
 #endif  // Not CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
 
 bool CPU_ProbeSSE2()
 {
-	// Apple switched to Intel desktops in 2005/2006 using
-	//   Core2 Duo's, which provides SSE2 and above.
+    // Apple switched to Intel desktops in 2005/2006 using
+    //   Core2 Duo's, which provides SSE2 and above.
 #if CRYPTOPP_BOOL_X64 || defined(__APPLE__)
-	return true;
+    return true;
 #elif defined(CRYPTOPP_NO_CPU_FEATURE_PROBES)
-	return false;
+    return false;
 #elif defined(CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY)
     __try
-	{
+    {
 # if CRYPTOPP_SSE2_ASM_AVAILABLE
-		AS2(por xmm0, xmm0)        // executing SSE2 instruction
+        AS2(por xmm0, xmm0)        // executing SSE2 instruction
 # elif CRYPTOPP_SSE2_INTRIN_AVAILABLE
-		__m128i x = _mm_setzero_si128();
-		return _mm_cvtsi128_si32(x) == 0;
+        __m128i x = _mm_setzero_si128();
+        return _mm_cvtsi128_si32(x) == 0;
 # endif
-	}
-	// GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION
-	__except (EXCEPTION_EXECUTE_HANDLER)
-	{
-		return false;
-	}
-	return true;
+    }
+    // GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION
+    __except (EXCEPTION_EXECUTE_HANDLER)
+    {
+        return false;
+    }
+    return true;
 #else
-	// longjmp and clobber warnings. Volatile is required.
-	// http://github.com/weidai11/cryptopp/issues/24 and http://stackoverflow.com/q/7721854
-	volatile bool result = true;
+    // longjmp and clobber warnings. Volatile is required.
+    // http://github.com/weidai11/cryptopp/issues/24 and http://stackoverflow.com/q/7721854
+    volatile bool result = true;
 
-	volatile SigHandler oldHandler = signal(SIGILL, SigIllHandlerSSE2);
-	if (oldHandler == SIG_ERR)
-		return false;
+    volatile SigHandler oldHandler = signal(SIGILL, SigIllHandlerSSE2);
+    if (oldHandler == SIG_ERR)
+        return false;
 
 # ifndef __MINGW32__
-	volatile sigset_t oldMask;
-	if (sigprocmask(0, NULLPTR, (sigset_t*)&oldMask))
-		return false;
+    volatile sigset_t oldMask;
+    if (sigprocmask(0, NULLPTR, (sigset_t*)&oldMask))
+        return false;
 # endif
 
-	if (setjmp(s_jmpNoSSE2))
-		result = false;
-	else
-	{
+    if (setjmp(s_jmpNoSSE2))
+        result = false;
+    else
+    {
 # if CRYPTOPP_SSE2_ASM_AVAILABLE
-		__asm __volatile ("por %xmm0, %xmm0");
+        __asm __volatile ("por %xmm0, %xmm0");
 # elif CRYPTOPP_SSE2_INTRIN_AVAILABLE
-		__m128i x = _mm_setzero_si128();
-		result = _mm_cvtsi128_si32(x) == 0;
+        __m128i x = _mm_setzero_si128();
+        result = _mm_cvtsi128_si32(x) == 0;
 # endif
-	}
+    }
 
 # ifndef __MINGW32__
-	sigprocmask(SIG_SETMASK, (sigset_t*)&oldMask, NULLPTR);
+    sigprocmask(SIG_SETMASK, (sigset_t*)&oldMask, NULLPTR);
 # endif
 
-	signal(SIGILL, oldHandler);
-	return result;
+    signal(SIGILL, oldHandler);
+    return result;
 #endif
 }