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Questions tagged [dwarf]

DWARF is a file format for representing debugging information.

The DWARF format is used to represent information needed for source-level debugging of programs.

The DWARF format is designed to be processor architecture and operating system independent, and supports debugging of programs written in procedural languages like C, C++, FORTRAN, Ada, Java, Modula2 and Pascal.

DWARF is widely used in modern proprietary and open-source operating systems, for example, Linux, Android, BlackBerry OS 10 and others.

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on GNU C compilation for creating obj files

What is full form of DWARF as i have seen that in objdump analysis, Learning the DWARF debug information format. I have tried analyzing a simple program void main() { printf("Hello World!!\n"); } I wanted to analyse how this could be in…
ganesh annigeri
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readelf shows non-empty debug_ranges but it appears empty in llvm

I have generated an ELF object via MCJIT with debug information, but when I read it back in LLVM it finds an empty debug_ranges section, even though there should be data there. I've dumped the object file to disk, and indeed: $ readelf -wR…
Oak
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dwarfdump is empty when using debug options

Im trying to get DWARF info from a C++ file using dwarfdump. The C++ file is very simple - int foo(); I compile it by doing g++ -g -c test.cpp. I then do dwarfdump test.o, but for some reason I get…
David says Reinstate Monica
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How to determine local static variable in non-member function using dwarf

Im trying to use dwarf to compare two c++ files, but I am running into issues when I get to local variables in non-member functions. Consider the following code - int f(){ [static] int j=0; return j; } If I compile it without the static…
David says Reinstate Monica
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Libdwarf - how to extract the size and type of a variable from an ELF file

I would like to create a program in C under Windows using the libdwarf library that is able to extract information about a variable given as input. The program should output the size in bytes of the variable and the type (unsigned, signed,…
farshield
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How do I convert an elf file from dwarf to stabs format?

Have a ELF debugging file. The file uses the DWARF format. How can I convert it into the stabs format? Are there any tools or methods that may be helpful to do this? Thank You.
Greg McNulty
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Valgrind new tool, read dwarf2 or dwarf3 info

I am developing a new tool of valgrind in which at some point I want to read the dwarf debug info in order to get the starting address and the size of a global array. I know that this info is included into the .debug_info section of dwarf3 debug…
lazlazari
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Objdump/GCC - BFD: Dwarf Error: mangled line number section

While trying to generate assembly code(intermixed with source code) using objdump, gcc -g -c test.c ; objdump -S -M intel test.o > out.asm I get the following error. BFD: Dwarf Error: mangled line number section. The output assembly generated is…
Jean
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invalid DWARF generated by the compiler

warning: invalid DWARF generated by the compiler: DIE 0x000629bb has multiple AT_decl_line attributes in '/Code/test/Mac1.7to1.8Test/build/Mac1.7to1.8Test.build/Release/Mac1.7to1.8Test.build/Objects-normal/x86_64/OgreFramework.o'. I'm getting…
Mr. Boy
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ELF Parsing : Accessing a DIE Directly using pyelftools

I need a method for accessing DIE's directly using their offset. So far, I have found that there is a method for the Computation Unit (CU) object in which you can access a DIE from its offset. I.e. :…
ncrosty
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retrieving variable type from debug info

Consider : int x[] = {1, 2, 3}; int main(){ return 0; } If we do an objdump of the data section, we will get the variable x with the starting address and the size as (4*3) bytes. Is there any easy way to retrieve the information that x was an…
pankaj
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How do I emulate objdump --dwarf=decodedline in .bundle files?

I've been successfully using objdump --dwarf=decodedline to find the source location of each offset in a .so file on Linux. Unfortunately on Mac-OS X. It seems that .bundle files (used as shared libraries) are not queriable in this manner. I'm…
Conrad Irwin
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No source available for "Reset_Handler() at 0x8984" while debugging an ARM TrustZone Project in Renesas e2 Studio and embOS Library

Summary I have a C++ ARM TrustZone project which is running on a R7FA4M2 controller and the embOS-MPU RTOS should be used. When I try do debug this project, the debugger does not find the source files as soon the code jumps from the secure project…
Fabian
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Understanding objdump DWARF information regarding struct and its member variables

I think I have the correct understanding of my question, but as I'm going purely with documentation and intuition, I was hoping someone with more expertise than me could verify or correct my understanding. The closest question I was able to find in…
Jay
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Problem during GenerateDSYMFile process (exit code 0)

I am getting a strange message during the compilation of one of our modules while using xcodebuild (Ventura 13.4.1 and Xcode 14.3.1) in C++: error: the following command failed with exit code 0 but produced no further output this…
hatirlatici
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