similar to: [LLVMdev] How to get the module handle of a .bc file??

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

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 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

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

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

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)

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

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

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

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".

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

Hi, my friends I know there is a difference between compiling a linux module and a simple helloworld programme. If I compile a helloworld.c file, the command is "clang -O3 -emit-llvm hello.c -c -o hello.bc" But what the command should be if I want to compile a linux module into a .bc file? (I know it may be an easy question to you guys, but I really don't know where to find the

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

On 4/10/12 10:11 PM, 15102925731 wrote: > 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

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

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, Nick I think that's the question. I just don't know what's the command line that can tell clang to find the linux head file like a makefile will do. Please help me! -- 祝好！ 甄凯 ------------------------------------------------------------------------------------------------------ 2012-04-12

2012/4/10 15102925731 <zhenkaixd at 126.com> > Hi, my friends > > > I know there is a difference between compiling a linux module and a simple > helloworld programme. > If I compile a helloworld.c file, the command is > *"clang -O3 -emit-llvm hello.c -c -o hello.bc"* > But what the command should be if I want to compile a linux module into a > .bc file?

Thanks for your help and patience! Best regards, Zhen Kai At 2012-04-16 15:35:25,"陳韋任" <chenwj at iis.sinica.edu.tw> wrote: >> The thing is that I know the Makefile to complete that task. But what I want to know the clang command that can do that. Since the makefile will generate a .ko file while I can use the clang command "-O3-emit-llvm" to generate a