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From fbccde3578feddb16f07be981da1d0f26209fd04 Mon Sep 17 00:00:00 2001
From: weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0>
Date: Sun, 5 Jun 2011 21:07:11 +0000
Subject: [PATCH 1/4] fix Salsa validation failure when compiling with GCC 4.6
(https://sourceforge.net/apps/trac/cryptopp/ticket/12)
git-svn-id: https://cryptopp.svn.sourceforge.net/svnroot/cryptopp/trunk@529 57ff6487-cd31-0410-9ec3-f628ee90f5f0
---
c5/salsa.cpp | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
# NOTE: remove the c5 path component
diff --git a/salsa.cpp b/salsa.cpp
index bd216ee..bdc5d75 100755
--- a/salsa.cpp
+++ b/salsa.cpp
@@ -122,17 +122,17 @@ void Salsa20_Policy::OperateKeystream(KeystreamOperation operation, byte *output
if (HasSSE2())
{
#if CRYPTOPP_BOOL_X64
- #define REG_output %4
- #define REG_input %1
+ #define REG_output %1
+ #define REG_input %0
#define REG_iterationCount %2
- #define REG_state %3
- #define REG_rounds %0
+ #define REG_state %4 /* constant */
+ #define REG_rounds %3 /* constant */
#define REG_roundsLeft eax
#define REG_temp32 edx
#define REG_temp rdx
- #define SSE2_WORKSPACE %5
+ #define SSE2_WORKSPACE %5 /* constant */
- FixedSizeAlignedSecBlock<byte, 32*16> workspace;
+ CRYPTOPP_ALIGN_DATA(16) byte workspace[16*32];
#else
#define REG_output edi
#define REG_input eax
@@ -457,12 +457,13 @@ void Salsa20_Policy::OperateKeystream(KeystreamOperation operation, byte *output
#ifdef __GNUC__
AS_POP_IF86( bx)
".att_syntax prefix;"
- :
#if CRYPTOPP_BOOL_X64
- : "r" (m_rounds), "r" (input), "r" (iterationCount), "r" (m_state.data()), "r" (output), "r" (workspace.m_ptr)
- : "%eax", "%edx", "memory", "cc", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", "%xmm8", "%xmm9", "%xmm10", "%xmm11", "%xmm12", "%xmm13", "%xmm14", "%xmm15"
+ : "+r" (input), "+r" (output), "+r" (iterationCount)
+ : "r" (m_rounds), "r" (m_state.m_ptr), "r" (workspace)
+ : "%eax", "%rdx", "memory", "cc", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", "%xmm8", "%xmm9", "%xmm10", "%xmm11", "%xmm12", "%xmm13", "%xmm14", "%xmm15"
#else
- : "d" (m_rounds), "a" (input), "c" (iterationCount), "S" (m_state.data()), "D" (output)
+ : "+a" (input), "+D" (output), "+c" (iterationCount)
+ : "d" (m_rounds), "S" (m_state.m_ptr)
: "memory", "cc"
#endif
);
--
1.7.9.2
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