原始文献 / 论坛帖 / Re: 4 hashes parallel on SSE2 CPUs for 0.3.6
Re: 4 hashes parallel on SSE2 CPUs for 0.3.6
Bitcointalk · 2010-08-15 03:40:29 UTC
MinGW GCC 4.4.1 和 4.5.0 上，test.cpp 能跑，但 BitcoinMiner 一调就 SIGSEGV。这么看不像 GCC 版本的问题，是别的原因，可能只是栈对齐的运气。
Ubuntu 32 位 GCC 4.3.3 上我这跑得好好的。
MinGW 4.5.0 上 Crypto++ 的问题我找到了。补丁如下：
代码：（以下保留英文原文）
--- \old\sha.cpp Mon Jul 26 13:31:11 2010
+++ \new\sha.cpp Sat Aug 14 20:21:08 2010
@@ -336,7 +336,7 @@
ROUND(14, 0, eax, ecx, edi, edx)
ROUND(15, 0, ecx, eax, edx, edi)
- ASL(1)
+ ASL(label1) // Bitcoin: fix for MinGW GCC 4.5
AS2(add WORD_REG(si), 4*16)
ROUND(0, 1, ecx, eax, edx, edi)
ROUND(1, 1, ecx, eax, edx, edi)
@@ -355,7 +355,7 @@
ROUND(14, 1, eax, ecx, edx, edi)
ROUND(15, 1, ecx, eax, edx, edi)
AS2( cmp WORD_REG(si), K_END)
- ASJ( jne, 1, b)
+ ASJ( jne, label1, ) // Bitcoin: fix for MinGW GCC 4.5
AS2( mov WORD_REG(dx), DATA_SAVE)
AS2( add WORD_REG(dx), 64)
英文原文
On both MinGW GCC 4.4.1 and 4.5.0 I have it working with test.cpp but SIGSEGV when called by BitcoinMiner. So now it doesn't look like it's the version of GCC, it's something else, maybe just the luck of how the stack is aligned.
I have it working fine on GCC 4.3.3 on Ubuntu 32-bit.
I found the problem with Crypto++ on MinGW 4.5.0. Here's the patch for that:
Code:--- \old\sha.cpp Mon Jul 26 13:31:11 2010
+++
ew\sha.cpp Sat Aug 14 20:21:08 2010
@@ -336,7 +336,7 @@
ROUND(14, 0, eax, ecx, edi, edx)
ROUND(15, 0, ecx, eax, edx, edi)
- ASL(1)
+ ASL(label1) // Bitcoin: fix for MinGW GCC 4.5
AS2(add WORD_REG(si), 4*16)
ROUND(0, 1, eax, ecx, edi, edx)
ROUND(1, 1, ecx, eax, edx, edi)
@@ -355,7 +355,7 @@
ROUND(14, 1, eax, ecx, edi, edx)
ROUND(15, 1, ecx, eax, edx, edi)
AS2( cmp WORD_REG(si), K_END)
- ASJ( jne, 1, b)
+ ASJ( jne, label1, ) // Bitcoin: fix for MinGW GCC 4.5
AS2( mov WORD_REG(dx), DATA_SAVE)
AS2( add WORD_REG(dx), 64)