交叉 valgrind

valgrind工具，在虛拟機上測試了幾個小程式，感覺不錯，于是決定編一個交叉valgrind出來，曆盡千辛萬苦，雖然解決了一些問題，但是還是沒有最終解決問題。 
在這裡先将已經解決的問題的方法獻給大家。
問題1. 'optimize' attribute directive ignored
configure的過程這裡不再贅述。在make的時候遇到了如下錯誤，編譯停止不前，一直停留在這裡。
drd_clientreq.c:79: warning: 'optimize' attribute directive ignored
解決方法，修改drd目錄下的Makefile，将DRD_CFLAGS的優化選項由-O2改為-O1。
DRD_CFLAGS = \
   --param inline-unit-growth=900    \

   -O1                    \

   -Wextra            \

   -Wformat-nonliteral            \

   -Wno-inline                \

  -Wno-unused-parameter

問題2. valgrind: failed to start tool 'memcheck-mips-linux' for platform 'mips32-linux': No such file or directory
在解決了問題1後，編譯成功，make install之後，去安裝目錄下的bin目錄，将valgrind拷貝到目标機上。在運作#./vargrind ./memleak的時候，遇到了：
valgrind: failed to start tool 'memcheck-mips-linux' for platform 'mips32-linux': No such file or directory
于是去虛拟機的安裝目錄下的lib目錄，找到 lib/valgrind/memcheck-mips32-linux，上傳到目标機上。
再次執行，發現還是報相同的錯誤，幾經輾轉，才發現，你的memcheck-mips32-linux在目标機上的路徑必須和虛拟機上的完全一樣，否則valgrind就會找不到！！
再執行，剛才的錯誤應該沒有了，但是會接着報缺少 default.supp等，缺什麼就上傳什麼。

終于像在虛拟機上執行程式一樣，啪啪啪，列印出來一些結果，确發現，列印的結果不對！！！抓狂！！！
我的測試程式是：
#include <stdlib.h>
#include <stdio.h>
int main(void)
{
       char *ptr;
       ptr = (char *)malloc(10);
       return 0;
}
 在虛拟機上使用valgrind得到的結果是： 
==8692== Memcheck, a memory error detector.
 ==8692== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al.
 ==8692== Using LibVEX rev 1804, a library for dynamic binary translation.
 ==8692== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP.
 ==8692== Using valgrind-3.3.0, a dynamic binary instrumentation framework.
 ==8692== Copyright (C) 2000-2007, and GNU GPL'd, by Julian Seward et al.
 ==8692== For more details, rerun with: -v
 ==8692== 
 ==8692== 
 ==8692== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 12 from 1)
 ==8692== malloc/free: in use at exit: 10 bytes in 1 blocks.
 ==8692== malloc/free: 1 allocs, 0 frees, 10 bytes allocated.
 ==8692== For counts of detected errors, rerun with: -v
 ==8692== searching for pointers to 1 not-freed blocks.
 ==8692== checked 48,384 bytes.
 ==8692== 
==8692== LEAK SUMMARY:
 ==8692==    definitely lost: 10 bytes in 1 blocks.
 ==8692==      possibly lost: 0 bytes in 0 blocks.
 ==8692==    still reachable: 0 bytes in 0 blocks.
 ==8692==         suppressed: 0 bytes in 0 blocks.
 ==8692== Rerun with --leak-check=full to see details of leaked memory.而在目标機上得到的結果是：
==11667== Memcheck, a memory error detector
 ==11667== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
 ==11667== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
 ==11667== Command: ./memleak
 ==11667== 
 ==11667== Conditional jump or move depends on uninitialised value(s)
 ==11667==    at 0x37447280: ??? (in /lib/ld-2.5.so)
 ==11667==    by 0x37436F00: ??? (in /lib/ld-2.5.so)
 ==11667== 
 ==11667== Conditional jump or move depends on uninitialised value(s)
 ==11667==    at 0x3743B870: ??? (in /lib/ld-2.5.so)
 ==11667==    by 0x3743B75C: ??? (in /lib/ld-2.5.so)
 ==11667== 
 ==11667== Conditional jump or move depends on uninitialised value(s)
 ==11667==    at 0x3743BF94: ??? (in /lib/ld-2.5.so)
 ==11667==    by 0x3743B75C: ??? (in /lib/ld-2.5.so)
 ==11667== 
 ==11667== Conditional jump or move depends on uninitialised value(s)
 ==11667==    at 0x3743B870: ??? (in /lib/ld-2.5.so)
 ==11667==    by 0x3743B4E8: ??? (in /lib/ld-2.5.so)
 ==11667== 
 ==11667== Conditional jump or move depends on uninitialised value(s)
 ==11667==    at 0x3743BF94: ??? (in /lib/ld-2.5.so)
 ==11667==    by 0x3743B4E8: ??? (in /lib/ld-2.5.so)
 ==11667== 
 ==11667== Invalid write of size 4
 ==11667==    at 0x374308E8: ??? (in /lib/ld-2.5.so)
 ==11667==    by 0x3743087C: ??? (in /lib/ld-2.5.so)
 ==11667==  Address 0x7ee6ae1c is just below the stack ptr.  To suppress, use: --workaround-gcc296-bugs=yes
 ==11667== 
 ==11667== 
 ==11667== HEAP SUMMARY:
 ==11667==     in use at exit: 0 bytes in 0 blocks
 ==11667==   total heap usage: 0 allocs, 0 frees, 0 bytes allocated
 ==11667== 
 ==11667== All heap blocks were freed -- no leaks are possible
 ==11667== 
 ==11667== For counts of detected and suppressed errors, rerun with: -v
 ==11667== Use --track-origins=yes to see where uninitialised values come from
 ==11667== ERROR SUMMARY: 10 errors from 6 contexts (suppressed: 0 from 0)對于目标機上的錯誤，還不知道具體是什麼原因，估計是哪個庫檔案不太比對之類的吧。 

valgrind: failed to start tool 'memcheck' for platform 'arm-linux': No such file or directory