similar to: [LLVMdev] Instrument examples

Hi, > I am new to LLVM. I want to use LLVM to instrument codes, such as > function calls and basic blocks. But I don't know where to start. I wonder > if there are any example codes to show how to instrument codes in the IR > level? No idea what exactly you want to achieve, but let me try. First, you might need a function doing the instrument. Say, void

On 10/31/2011 2:53 AM, zhouxu(NUDT) wrote: > Hi, > I am new to LLVM. I want to use LLVM to instrument codes, such as > function calls and basic blocks. But I don't know where to start. I > wonder if there are any example codes to show how to instrument codes > in the IR level? First, have you read the Language Reference Manual, the Programmer's Manual, and the How

> No idea what exactly you want to achieve, but let me try. > > First, you might need a function doing the instrument. Say, > > void HowManyTimeThisFunctionGetCalled(); > > Then you can insert a call to the function above while creating > a LLVM function [1]. In that way, every time that LLVM function > get called the function doing the instrument will be called.

Dear llvm-ers, I am trying to attach a customized metadata to llvm instructions. Let's say, I want to attach some number to each instruction. I am trying to use void Instruction::setMetadata(unsigned KindID, MDNode* Node) but I am not sure how to create a brand new instance of an MDNode. Do you have any code samples demonstrating how to do that? Due to some tool dependencies, I am using

> Dear llvm-ers, > I am trying to attach a customized metadata to llvm instructions. > Let's say, I want to attach some number to each instruction. > I am trying to use > > void Instruction::setMetadata(unsigned KindID, MDNode* Node) > > but I am not sure how to create a brand new instance of an MDNode. > Do you have any code samples demonstrating how to do that?

Sorry to have to ask... I'm catching too much noise from dumps. I'm building LLVM 7.0 using release tarballs on OS X 10.5 PowerPC. I'm building out-of-tree mostly following https://llvm.org/docs/GettingStarted.html#getting-started-quickly-a-summary . Cmake gets this far and hangs: -- Looking for pthread_create in pthread -- Looking for pthread_create in pthread - found -- Looking

Hi, I wrote a pass for myself. But the only way I know to run my pass is using the "-load" options of opt. I want to make my pass as a default pass integrated into opt so that I will not have to use the "-load" option every time. How could I do that? Thanks. -- zhouxu -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello, Thank you very much for the pointers. I am are able to create new MDNodes, filled with some constants, and attach them to llvm instructions. However, the metadata map is not getting updated as expected. For example, instead of the expected new entry !n = metadata !{some values} we are getting !n = metadata !{null} Do you know what might be wrong? Do we need to enter the MDNodes into the

Hi, is there a way to instrument entry of assembler function "sfmmu_kdtlb_miss" to use Dtrace infrastructure?? i know there is no "supported/standar" one since it does not appear as a fbt available probe. It has no "save" instruction and that seems to be one of the reasons. I''m talking about test system so maybe we can hack it with mdb?? TIA,

I'm trying to build LLVM, CFE and RT from sources on an old PowerMac with OS X 10.5. After download and unpack into LLVM_SOURCE_DIR (with --strip-components=1), I configure with: cmake -DCMAKE_INSTALL_PREFIX="/opt/llvm" \ -DLLVM_TARGETS_TO_BUILD="PowerPC" \ -DLLVM_INCLUDE_TOOLS="ON" \ -DLLVM_BUILD_TESTS="ON"

hi, I'm newer in llvm i would like to instrument a byte code with a pass and as a result i would like to get an instrumented byte code. i would like that a pass add a method (which calculate the number of instructions) in the end of each block. the instrumented code should contain in each block a method that calculate the number of instructions Please Help me thank you -- Nabila ABDESSAIED

Hi, I try to use llvm-dis to disassemble the result after opt, my pass will add a intrinsic after the load instruction, like following: bool fpscan::ldAddMetadata (Instruction *Inst, StringRef c) { std::vector<Metadata *> dataTuples; // Add metadata in list dataTuples.push_back(MDString::get(Inst->getContext(), c)); MDNode* N = MDNode::get(Inst->getContext(),

On 12/21/11 11:24 PM, Oksana Tkachuk wrote: > Hello, > Thank you very much for the pointers. > I am are able to create new MDNodes, filled with some constants, and > attach them > to llvm instructions. However, the metadata map is not getting updated > as expected. > For example, instead of the expected new entry If you look at PoolMDPass::runOnModule(), you'll see that

On 4/5/11 11:36 AM, Nabila ABDESSAIED wrote: > > > 2011/4/5 John Criswell <criswell at illinois.edu > <mailto:criswell at illinois.edu>> > > On 4/5/11 11:22 AM, Nabila ABDESSAIED wrote: >> hi, >> I'm newer in llvm >> i would like to instrument a byte code with a pass and as a >> result i would like to get an

Folks; During a jumpstart (2nd boot) of a Sun Fire 240 with Solaris 10 Update 3 (11/06), I noticed the following message; Jun 27 11:43:33 first fbt: NOTICE: cannot instrument return of fd_intr at 7b7d6278: non-canonical return instruction Kernel level was Generic_118833-33. Jumpstart was conducted using the standard JET modules. What gives? The jumpstart worked though. Solaris 10 installed

Hello, voicemail password is not getting changed through phone handset while IVR indicates that password has been changed. During google I found that uniqueid column must not be changed so it is not changed. Please guide on this. During debug log I found below but in mysql db new password is not getting updated, [Jun 15 13:54:07] VERBOSE[6418] file.c: -- <SIP/123-00000005> Playing

I am new to R so I apologize if my question is trivial. I have not been able to figure out whether what I want to do is even possible. I have a data frame of stock ticker symbols which I store into R space from a txt file as follows: tickers <- read.csv("stocks.txt", header=FALSE, sep=",") tickers <- tickers[1] / the tickers are stored in the first column >

Hi all， Im trying to instrument this hello function right before the instruction that call the "puts" function(the source code is as follow). Now I can compile the pass without errors, but when run the pass with opt tool, it broke down. The diagnose is something like Referencing function in another module! %CallCheck = call i32 @fib() Broken module found, compilation aborted! Does

Hi, I got upset.. What does “Broken module found, compilation aborted!” mean really?? what‘s “broken module“?? -- 祝好！ 甄凯 ------------------------------------------------------------------------------------------------------ 2012-04-09 ------------------------------------------------------------------------------------------------------ Name: 甄凯(ZhenKai)

Thank you very much! To make it simpler, I may as well just implement the self-written "check function" in C language instead of wrapping it in LLVM module. According to the hint you give me, all I need to do is as follow(?) 1. Implement the "Check function" in the check.c file; 2. Add the check function into the module(the Hello1.bc file which I will run the functionPass on)