similar to: [LLVMdev] [GSoC 2014] Using LLVM as a code-generation backend for Valgrind

On 02/25/2014 04:50 PM, John Criswell wrote: > > I think a more interesting idea would be to use LLVM to perform > instrumentation and then to use Valgrind to instrument third-party > libraries linked into the program. > > What I'm imagining is this: Let's say you instrument a program with > SAFECode or Asan to find memory safety errors. When you run the program >

Hi, only one letter got to valgrind-developers mailing list. I'll quote the first message of the thread so that those who do not read llvmdev knew what's this discusssion about. === Begin of the first message === > Hi, > > I've seen on the LLVM's Open Projet Page [1] an idea about using LLVM to > generate native code in Valgrind. For what I know, Valgrind uses libVEX

Hi: I have been working on Valgrind [porting it to non-supported architectures] and wanted to know what you guys think of Valgrind for LLVM. I haven't thought through fully myself - so wanted to get your inputs before becoming rigid in my own opinion. Original Valgrind works on object code - translating the asm to its own IR [intermediate representation]. But for LLVM, probably putting the

Hi, Congratulations to LLVM for getting accepted to GSoC 2009! I am a PhD candidate interested in participating this year. I have been working on dynamic compilation (binary translation or BT) for multicore architectures for a couple of years. I am familiar with the internals of several BT frameworks (including open-source Valgrind). I was looking at the ideas page for LLVM. I would like to

Hi, Just a thought... How are you going to port llvm so it doesn't use libc? Valgrind uses the same resources as the running program, so it can't use the system libc's malloc nor any other functions so it doesn't get "confused". Regards and let's hope this project is accepted :-) F Owen Anderson wrote: > Rodrigo, > > On Mar 20, 2009, at 8:41 AM,

Rodrigo, On Mar 20, 2009, at 8:41 AM, Rodrigo Dominguez wrote: > Congratulations to LLVM for getting accepted to GSoC 2009! > > I am a PhD candidate interested in participating this year. I have > been > working on dynamic compilation (binary translation or BT) for > multicore > architectures for a couple of years. I am familiar with the > internals of > several

I am trying to do a classic R -d valgrind --vanilla < mypkg-Ex.R as described in http://cs.swan.ac.uk/~csoliver/ok-sat-library/internet_html/doc/doc/R/2.9.1/doc/manual/R-exts.html#Using-valgrind The problem is valgrind crashes imediately. I am using Ubuntu 10.04 LST (actually Biolinux) on a 64bit Dell Precision laptop with 4 core-i5 Intel processors. I have R-2-15-0 installed from source

valgrind complains about the save command in R 2.3.1 as shown by the script included below. Of course, I don't know whether this "Conditional jump or move depends on uninitialised value(s)" is really a bug. Experience with similar issues in my own code says it may be, but it is also hard to tell. Having no familiarity with the code cited in deflate.c, I leave the issue to experts.

Filipe Cabecinhas wrote: > Just a thought... How are you going to port llvm so it doesn't use libc? > Valgrind uses the same resources as the running program, so it can't use > the system libc's malloc nor any other functions so it doesn't get > "confused". I think you could to put LLVM into a different process. >> I think I'm the one who put

Dear R developers I am running an instrumented build of R 2.6.1 on ubuntu, compiled with option configure --with-valgrind-instrumentation=3. If run valgrind R then I get all sorts of warnings. I was wondering whether I should worry about them or not. First, when I open R as follows: $R -d "valgrind --tool=memcheck --leak-check=full --show-reachable=yes" --vanilla I get a whole

Hi, For the last day or two I having been trying to get Valgrind/Callgrind 3.6.1 to work on Centos Linux 5.5 using a simple Fibonacci C++ program(shown below). After compiling the program using g++ -g -o MatchUpAccurate MatchUpAccurate.cpp, we run: /home/frankc/DQTTest/valgrind-3.6.1/coregrind/valgrind --tool=callgrind --dump-instr=yes --simulate-cache=yes --collect-jumps=yes

Hi Carlos, On 10/20/11 9:54 AM, Carlos Sánchez de La Lama wrote: >> The project started as a use-case for our "Whole-Function Vectorization" >> library, which allows to transform a function to compute the same as W >> executions of the original code by using SIMD instructions (W = 4 for >> SSE/AltiVec, 8 for AVX). > > Quite interesting. We were planning to

Hi all, I'm on Ubuntu 18.04, running R-4.0.0 which I compiled from source, and using valgrind I am always seeing the following message. Does anybody else see that? Is that a known false positive? Any ideas how to fix/suppress? Seems related to TRE, do I need to upgrade that? (base) tdhock at maude-MacBookPro:~/R/binsegRcpp$ R --vanilla -d valgrind -e 'extSoftVersion()' ==9565==

"R Installation and Administration", section 2.5 "Sub-architectures" describes calling specific builds of R using the call "R --arch=name". I am trying to build and install three versions of R-2.9.1, each configured with a different valgrind-instrumentation level ("Writing R Extensions", section 4.3.2 "Using valgrind"). My goal is to be able to

Hello, I am the developer of Clover, and so much activity about OpenCL these days is really exciting. Here is my point of view, mainly on Clover and how the projects could use each other. Clover is made in a way that allow a certain level of modularity. Although POCL would be very difficult to merge into Clover (or Clover into POCL), as these two projects are nearly exactly doing the same things

i want to do something about llvm and valgrind.i have read some information about it in llvm.org. Port Valgrind <http://valgrind.org/> to use LLVM codegeneration and optimization passes instead of its own. is somebody working on it ? can you give me some addvice? is there some project like it? thank you -------------- next part -------------- An HTML attachment was scrubbed... URL:

In the example below, the Memory Sanitizier (from clang 3.3) reports an error: #include <math.h> int main() { double x; (void) modf(0, &x); if (x) { // Boom return 1; } return 0; } I see that modf() is not implemented by compiler-rt. Is it possible to make the Memory Sanitizer assume that all un-instrumented functions initialize any pointers arguments?

Hi All , I'm not sure the question is relevant to the forum,My apologies if not We are trying to instrument our code with ASan(Clang) to find the memory errors and we see that the application execution halts when the Asan check finds the memory issue at the being. Which mean we need to fix the issue then compile and execute the instrumented code again to find the next issue and so on

I tried to run convert-tool from dovecot-1.2-0.rc2 on a tree of mbox files with some containing dots in the filenames and got this failure: # /usr/libexec/dovecot/convert-tool ken /home/ken mbox:/home/ken/mail maildir:/home/ken/Maildir Error: Mailbox conversion: Couldn't create mailbox Lists.WINE.patches: Mailbox already exists Error: Internal failure *** glibc detected ***

Dear LLVMers, My name is Raphael Ernani, and I am doing my MsC at the Federal University of Minas Gerais, Brazil. I have been using LLVM for a while, and I would like to participate in this year's Summer of Code. One particular idea, in your "open projects" page caught my eye, and I decided to write a proposal about it. The line that I liked in the page was "Create an LLVM