2016年5月4日 · In fact, Valgrind emulate your program with an intermediate language (VEX) to know if it discovers memory violation. This VEX language capture all the instructions of several assemblers such as i386, amd64, arm, ... But, from time to time, it miss a few instructions (especially specialized ones like rdrand which is linked to the AES specific instructions set). Well, this is exactly what ...

2022年6月24日 · You are executing a 32 bit system call in a 64 bit binary. While not a good idea in general, it also seems like valgrind does not support this. Either assemble into a 32 bit program or use 64 bit system calls, but do not mix 32 bit and 64 bit.

2016年9月24日 · It looks like your Ubuntu system has a random number library which uses the RDRAND instruction (opcode 0x0f 0xc7) which your version of Valgrind does not recognise. Your Arch system evidently uses a different implementation which does not take advantage of this instruction. You may be able to work around this by re-compiling for a pre-Ivy Bridge CPU.

In order to search for memory leaks in my application based on the Liv555 library, I tried to run it using valgrind. It results in the following error: vex amd64->IR: unhandled instruction bytes:

2016年8月7日 · When I compile my C program and run it under valgrind I have the following errors: vex amd64->IR: unhandled instruction bytes: 0x8F 0xEA 0xF8 0x10 0xC9 0x3 0x1D 0x0 vex amd64->IR: REX=0 RE...

2016年9月6日 · So I'm finally reading through K&R, and I learned something within the first few pages, that there is a backspace escape character, \\b. So I go to test it out, and there is some very odd behav...

I'm seeing a similar issue, but with valgrind 3.11.0 after upgrading to gcc 8.0.1.

2016年10月21日 · Upgrade to a newer version of valgrind, which will contain the fix. Current version is 3.11, but 3.12 will very soon (a few days max) be out.

2013年6月20日 · Hello I have this text : 1,0.00,,2.00,10,"Block. CertNot Valid. Query with me",2013-06-20,0,0.00 This is two lines in CSV file, but really is one line of data and I want remove the break line, an...

2020年1月27日 · For the purpose of my PhD thesis, I'm trying to trace the GAP Benchmark Suite using the SimPoints methodology and you may know, the first step to do so is to get Basic Block vectors for the applica...