similar to: [LLVMdev] How to instrument a this function using insertBefore instruction???

Hi, I don't think the code you pasted can be the correct code, where does FibF come from? Anyway, the problem is that you're calling the FibF from Module A, however you defined it for Module B. You need to insert the FibF function into the Module that you're running. To do this override "virtual bool doInitialization(Module &M);" and insert FibF into M. Joey 2012/4/9

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)

That sounds like a good general plan, yes! Joey 2012/4/9 15102925731 <zhenkaixd at 126.com> > 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

My friends, I ran a function pass on a .bc file, intending to insert a CallInst to my self-made check function. The compilation is successful. BUT after I ran that pass on the .bc file, the size of the file didn't get any bigger!! Does this mean my instrumentation work failed?? BTW the opt command I use is "opt -load ../../../Debug+Asserts/lib/Hello.so -hello <hello.bc> -o

I figured that my opt command is wrong! How to specify the output file anyway?? if I want hello.bc to be input file and newhello.bc to be output file, is the opt command go like this? opt -load ../../../Debug+Asserts/lib/Hello.so -hello <hello.bc> -o newhello.bc ?? -- 祝好！ 甄凯

Hi all, I wrote a function pass. In the pass, it ran through all the instruction that call to functions. When arriving at the exact function that I m interested in, it would insert a self-made function. Now I've finished the pass, the compilation is successful. The pass can find the function I like and can insert the CallInst to call my check function. BUT, when running the

Hi all, I want to run a function pass on a certain .bc file. In the process, the pass will insert a check function into the .bc file. I know the .bc file is regarded as a module in LLVM. So, there are two basic steps needed to be done, 1, Use the "getOrInsertFunction"API to add a declaration of the extern "check function". 2, Use the "insertBefore"API to insert the

Objects that form the IR (functions, basic blocks, instructions) have the getParent() method that returns their paren (module for a function, basic block for a single instruction etc.) BTW, LLVM Doxygen is really helpful. It's usually the first result when you search for "LLVM <classname> class reference" On Tue, Apr 10, 2012 at 11:17 AM, 15102925731 <zhenkaixd at

Your files do not appear to implement the check() function. On Tue, Apr 10, 2012 at 4:57 PM, 15102925731 <zhenkaixd at 126.com> wrote: > Hi, my friends > > I finally insert the callInst into the hello.bc file.Then I compile the > hello.bc to hello.o file and the check.c to check.o file. And I think by > link those to .o file togetherI can get the executable ELF file(clang

I did it !!!! YOU MADE MY DAY !!!!!!!!!!!!!!! -- 祝好！ 甄凯 ------------------------------------------------------------------------------------------------------ 2012-04-10 ------------------------------------------------------------------------------------------------------ Name: 甄凯(ZhenKai) Homepage:http://www.renren.com/262729393 Email: zhenkaixd at 126.com or 846227103 at

Hi, my friends I finally insert the callInst into the hello.bc file.Then I compile the hello.bc to hello.o file and the check.c to check.o file. And I think by link those to .o file togetherI can get the executable ELF file(clang hello.o check.o -o finalfile). But when I link the two objective file, it said "hello.o: In function `main': hello.bc:(.text+0x69): undefined reference to

Thanks for your reply! I send the message to the mail list this time~ Did you mean I need to initialize M and the Context? Is that really necessary? Does all the function need to be wrapped in the module? I remember you once said "you can just declare the function (i.e. no need to give it a body), and call it.You can then link with an object file that defines it. This is simpler than

Yeah, but I tried that command and error message was generated: hellomodule.c:1:10: fatal error: 'linux/init.h' file not found #include <linux/init.h> ^ 1 error generated. how to solve this problem?? Thanks! -- 祝好！ 甄凯 ------------------------------------------------------------------------------------------------------ 2012-04-12

Ok, that makes sense! That is to say, I don't need a makefile (in which to specify the path to kernel) to compile it. Just a clang command with some option will do it, right? -- 祝好！ 甄凯 ------------------------------------------------------------------------------------------------------ 2012-04-12

Hi, I also want to insert a function call at the interested area, and do something in the called function which is written by myself. First you need to determine the INSTRUCTION where you want to insert your function to. you can do this by writing some code like, for (Function::iterator BI = F.begin(), BE = F.end(); BI != BE; ++BI) for(BasicBlock::iterator II =

Hi, I am instrumenting a piece of code. I want to insert a function call at the interested area, and do something in the called function which is written by myself. I have succeed on implementing the pass, and getting the instrmented code. However, I am not sure where to put this function, and what kind of linkage I should use for this function. Currently I use External linkage which is

Wow that's to much output information. Maybe I can put it in this way. Could you tell me the clang option that can include the linux kernel headers??? Something like "clang -O3 -isystem /lib/modules/`uname -r`/build/include -emit-llvm hellomodule.c -c -o hellomodule.bc" Thank you! -- 祝好！ 甄凯

On 4/11/12 8:25 PM, 15102925731 wrote: > Yeah, but I tried that command and error message was generated: > > hellomodule.c:1:10: fatal error: 'linux/init.h' file not found > #include <linux/init.h> > ^ > 1 error generated. > > how to solve this problem?? Well, you do have to include all the -I and -D options so that clang can find the Linux kernel header

It's actually is .c file. I just want firstly to compile helloworldmodule.c into helloworldmodule.bc. Then I run a LLVM pass on it to do some optimization, and then I compile the modified .bc file into .ko file. So, could you tell me how to compile helloworldmodule.c into helloworldmodule.bc? I think it's not the same command "clang -O3 -emit-llvm hello.c -c -o hello.bc".