similar to: [LLVMdev] Compiling glibc with llvm

Hi Nipun, As you say, glibc is rather GCC -oriented. I certainly haven't tried this myself, but have you thought of using an alternate C library such as RedHat newlib? That can certainly be compiled by clang (we do it every night). Cheers, James From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Nipun Arora Sent: 26 January 2012 15:54 To:

Hi James, I will look into the RedHat newlib library, however, we def are looking for a solution for glibc, but maybe newlib would be a good way to go to test our complete workflow before putting an effort to generate control flow graphs for glibc. btw. I did have another question, hopefully you would be able to answer, what we are looking to do is to get the control flow graph including some

Hi, I read on the gentoo website http://en.gentoo-wiki.com/wiki/Llvm that glibc cannot be compiled using llvm because of some GNU extensions which LLVM does not support. Has there been any success in compiling glibc using LLVM so as to get the bytecode? We are looking to do whole program analysis to look at control flows including those in libc... we were hoping that we could get the control

Hi James, I will look into the RedHat newlib library, however, we def are looking for a solution for GCC as well, but maybe newlib would be a good way to go to test our complete workflow before putting an effort to use glibc. btw. I did have another question, hopefully you would be able to answer, what we are looking to do is to get the control flow graph including some sort of alias analysis

Hi Tobi, Thanks for the response, could you point me to the source files of the memory dependence pass? Thanks Nipun On Mon, Mar 28, 2011 at 2:46 PM, Tobias Grosser <grosser at fim.uni-passau.de>wrote: > On 03/28/2011 12:15 PM, Nipun Arora wrote: > > Hi, > > > > I have been trying to run the memdep analysis using opt with the > > following command: opt -analyze

Hi, I was able to figure out this one, by checking out profile.pl. However, I am still interested in getting to know if there is anyway to compile from bitcode to a normal executable? Maybe I am missing something obvious... :P ? Thanks Nipun On Fri, Apr 1, 2011 at 1:34 PM, Nipun Arora <nipun2512 at gmail.com> wrote: > Hi, > > Could anyone tell me how exactly can one convert a

The easiest way is just to invoke clang on the .bc file, since it understands it. clang file.bc -o file llc will get you native assembly, which you can assemble and link with gcc. llc file.bc -o file.s && gcc file.s -o file I couldn't find a way to convince llc to use MC to generate an object file. In any case, you'll need to invoke the system linker to produce the executable.

Hi ALL rsync 2.6.9 fixed the time issue. I felt this issue is truly behind, but then I upgraded to glibc 2.5. The time problem again started. I recompiled rsync after upgrading glibc thinking that might be the problem. No ways, problem still persists. I am using Gentoo 2.6.19 + glibc 2.5. From logs Time: Mon Feb 12 15:46:43 EST 2007 2007/02/12 04:46:43 [16263] receiving file list

I agree. Being a newbie myself, I can relate to what problems someone new to llvm would have.While I think most of the stuff I have tried will be useful, I wouldn't be entirely sure if its the best way to go about it. Thanks Nipun Arora Columbia University On Wed, Mar 11, 2009 at 11:01 AM, Anthony Danalis <adanalis at eecs.utk.edu>wrote: > > On Mar 11, 2009, at 10:53 AM, Jon

Right now I am writing passes just to look for arrays & structs I am trying to identify the array by parsing the memory description(use regex's) ex./ { [20 x i8], i32 } *- for a struct. is a structure with a character array of size 20 and an integer. I'm not sure if llvm provides an easier way to do this? The type id for most arrays comes out to be a pointer rather than an array, its

Hi, I need to generate a data dependancy graph. Is there any functionality available in LLVM which can help me? Or if anyone can point to the correct place? Thanks Nipun Arora Graduate Research Assistant Dept of Computer Science Columbia University -------------- next part -------------- An HTML attachment was scrubbed... URL:

How do you define a data structure for this purpose? Do you mean individual data types like structs or arrays? Or higher-level "logical" structures like lists, trees, or hash tables? The former is obviously easier but even the latter is possible, in some cases. --Vikram Associate Professor, Computer Science University of Illinois at Urbana-Champaign http://llvm.org/~vadve On

On 03/28/2011 12:15 PM, Nipun Arora wrote: > Hi, > > I have been trying to run the memdep analysis using opt with the > following command: opt -analyze -memdep <*.bc>. > However, I keep getting the following error: Pass::print not implemented > for pass: 'Memory Dependence Analysis' ! . > I get similar errors for a lot of the analyses passes, which seem as if

> Note that compiling glibc with LLVM does not give you a solution to THIS > problem: you'd still have to write a new backend for your ISA. There is > currently a Sparc backend and an X86 backend. Depending on how similar > your architecture is to one or the other, you might be able to leverage > existing code. Take a look at llvm/lib/Target/{Sparc,X86}, though the > X86

Hey Devang, Thanks for the assist, I'm trying to extract a signature which uniquely identifies a block of code.... this is required for a project I am doing. The no of data structures is one of the identifying features of this signature. Thanks Nipun On Fri, Oct 31, 2008 at 1:05 PM, Devang Patel <dpatel at apple.com> wrote: > Hi Nipun, > On Oct 30, 2008, at 9:31 PM, Nipun

Hi, I have been trying to run the memdep analysis using opt with the following command: opt -analyze -memdep <*.bc>. However, I keep getting the following error: Pass::print not implemented for pass: 'Memory Dependence Analysis' ! . I get similar errors for a lot of the analyses passes, which seem as if they should have a print out? Is there any other memory dependence analysis

Hi I was having just one more problem. I would like to find these datastructures/ primitive types etc inside a block, however the valuesymbol table is available only at a functional level. What can I do so as to get the number + type of datastructs(eg. arrays etc) inside a single block? Thanks Nipun On Fri, Oct 31, 2008 at 12:05 PM, Devang Patel <dpatel at apple.com> wrote: > Hi

If we get the blessing of one of the old-timers who is willing to spend a little time reviewing postings, we can deal with the 'misleading information' issue. In addition, it might be _useful_ to understand why people were misled. On Wed, Mar 11, 2009 at 5:16 PM, Nipun Arora <nipun2512 at gmail.com> wrote: > I agree. Being a newbie myself, I can relate to what problems someone

Hi, Could anyone tell me how exactly can one convert a .bc file (bitcode file) to an executable in the native program. I was trying an instrumentation transform with the following workflow opt -insert-edge-profiling input.bc -o output.bc and then try and execute output.bc using lli output.bc however the program gives the following error : Program used external function

Hi Nipun, On Oct 30, 2008, at 9:31 PM, Nipun Arora wrote: > Hi > > I am trying to count the no of datastructures and the type, say for > example the number of arrays in a given code. Which pass would give > me this info? And what do I need to use in it? What are you trying to achieve here with this information ? You can iterate over types to collect the info you need. For