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Questions tagged [libunwind]

43 questions
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2 answers

Building libunwind for Mac

I am trying to build libunwind on Mac for both iOS and Mac, I was able to resolve few of the compilation problem. Building on Mac I configured the project using ./configure CC="cc -Ae -D_XOPEN_SOURCE=500" And copied elf.h from google's breakpad…
Vishvesh
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Build LLVM 16 (master) fail on libunwind

I'm trying building LLVM master on Ubuntu 22.04. But there's an error of libunwind. CMake Error at /home/hxf0223/tmp/llvm-project/libunwind/src/CMakeLists.txt:109 (message): Compiler doesn't support generation of unwind tables if exception…
roderick
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try-catch cannot catch exception in a shared library load by dlopen

The library which contains the try-catch block is load dynamically using dlopen, and the try-catch block is as simple as bellow: try { throw "sth"; } catch (...) {} The program that dynamically load the library abort complains: terminate…
Xiaofeng
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source code name and line number of the remote process

Hi I am trying to create some sort of a debugger that looks at system calls to detect them, but from an usability standpoint I wish to be able to get the source code name and line number where the error is detected. I have been using library called…
Yuta Nakamura
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unw_get_proc_name() sporadically returns UNW_EUNSPEC and UNW_ENOINFO errors

I am using libunwind 1.4.0 to collect the stack-trace. It almost always works, but there are cases that I either get unspecified (general) error or no unwind info found when calling unw_get_proc_name. I can walk through the stack-trace in core-dumps…
samanca
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Broke yum on Centos 6.10, cannot install missing GLIBC in error due to missing libunwind

I was installing nvidia-drivers on Centos 6.10 which included a --skip-broken flag and may have broken yum. Whenever I ran yum commands this error pops up. There was a problem importing one of the Python modules required to run yum. The error…
Sam Soong
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Prevent PIN_Backtrace() Unsuccessful Exit

I have a pintool that has calls to PIN_Backtrace(). It seems that libunwind does not support some registers in x86_64 and this leads to the following error message and an abnormal exit: libunwind: uint64_t…
TheAhmad
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_Unwind_ and unw_ functions (LLVM's libunwind)

I'm new to the LLVM's libunwind library. Could you please tell me what's the purpose and the difference of the two sets of functions that libunwind provides: functions with the prefix _Unwind_ functions with the prefix unw_
embedc
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What are the purposes of different libraries present under cxx-stl\llvm-libc++\libs folder?

In android ndk, under folder sources\cxx-stl\llvm-libc++\libs\armeabi-v7a, I can see these following libraries. libandroid_support.a libc++.so libc++_shared.so libc++abi.a libunwind.a Could you please explain what is the purpose of each one. If…
Pendyala
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unw_init_remote failed with UNW_EBADREG

On android, while collecting traces of a particular native process, I observed that the backtrace of a particular thread of the process was not collected(libunwind is used to collect the backtrace). First attempt: 12-29 20:47:20.902 13088 13088 W…
sg1993
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undefined reference to symbol '_ULx86_64_step' libunwind.so.8: error adding symbols: DSO missing from command line

I'm trying to compile Caffe. make all -j4 worked fine. But making the tests is giving the following error. Debian GNU/Linux 8 (jessie) 64-bit g++ --version g++ (Debian 4.9.2-10) 4.9.2 Gives this error on make test -j4 caffe$ make test…
muglikar
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Error: lo register required when build libunwind in android ndk

I want to build libunwind from Android source at eclipse using ndk r10d. But I fail at compiling "Gresume.c" , and it fail at the asm code . I can't understand asm code and I searched any place can't found people who has the same problem ,so I hope…
spiritchen
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Is it safe to iterate through a stack frame?

In my previous question, I was trying to see if I could programmatically obtain a stack trace of a child process from its parent. I've successfully done so, but now another question has arisen in my mind - is it safe to directly examine these frames…
tonysdg
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How could I remove a certain .o section out of .a file

I have a .a file with a bunch of symbols and objects. There is a section which libunwind.o: 00000184 T _Unwind_Backtrace 00000160 T _Unwind_ForcedUnwind 000000f4 T _Unwind_RaiseException 00000118 T _Unwind_Resume 0000013c T…
seanxiaoxiao
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Debian bookworm: Use both libunwind8 and libunwind-14?

I updated my container from debian bullseye to bookworm. I used both libunwind8 (and libunwind-dev) and libc++-dev Since bookworm, libc++-dev depends on libunwind-14-dev (probably because it now supports std::basic_stacktrace). This is a conflict,…
kuga
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