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Questions tagged [backtrace]

A backtrace is the series of currently active function calls for the program.

On linux and mac, it is possible to obtain the backtrace using the backtrace() function.

417 questions
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Android _Unwind_Backtrace inside sigaction

I am trying to catch signals such as SIGSEGV in my Android NDK app for debugging purpose. For that, I have set up a sigaction that is called. I am now trying to get the stack of the call. The problem is that _Unwind_Backtrace only works on current…
Salomon BRYS
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How to log all calls to a function in PHP? (mail() function)

I have a dedicated server with tens of virtual hosts. I want to determine what file is calling mail() function and log this globally. I need something like that: [Wed Feb 13 10:42:39 2013] mail() called from /var/www/example1.php on line 70 [Wed Feb…
Jose
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GDB bt error: "Not enough registers or memory available to unwind further"

The backtrace from core-file cut the useful information due to this: Backtrace stopped: Not enough registers or memory available to unwind further. Why this message occurs and can I do something about it?
Yodo
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Get variables in scope at each PHP backtrace level?

Is there a way to view the variables set in each stack frame in a backtrace? I can come pretty close with a combination of debug_backtrace(true) to get the objects, get_object_vars on each object to get $this vars, the args key in each backtrace…
Ian Wetherbee
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Uncaught TypeError: Cannot read property 'length' of undefined

I have a plugin that access the length property on many elements. However, the javascript console points to line 12 of jquery.min.js. How can I backtrace to find the offending line in my plugin?
maček
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How to force Google Chrome to show backtrace on exception?

Is it possible (using plugin or maybe some config option) to make javascript error console to show error backtrace?
tig
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Alternative to backtrace() on Linux that can find symbols for static functions

In the man page, the backtrace() function on Linux says: Note that names of "static" functions are not exposed, and won't be available in the backtrace. However, with debugging symbols enabled (-g), programs like addr2line and gdb can…
user1775117
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Stack / base pointers in assembly

I know this topic has been covered ad nauseam here, and other places on the internet - but hopefully the question is a simple one as I try to get my head around assembly... So if i understand correctly the ebp (base pointer) will point to the top…
malangi
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Counterpart to glibc's backtrace() and backtrace_symbols() on Windows?

Glibc provides the very handy backtrace() and backtrace_symbols() functions, which can help getting the stack trace of the current function programmatically (see here). Does the Windows API provide any similar functions?
user500944
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Local labels in GNU assembler; gdb printing backtrace as though labels are functions

Two pieces of example code; first some C++ code calling into assembly: /* test1.cc */ #include extern "C" void blah(); extern "C" void stuff() { printf( "This is a test\n" ); } int main( int argc, char *argv[] ) { blah(); return…
Brian Vandenberg
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Need more information about Aborted (core dumped)

This bellow code will generate Aborted (core dumped) at last line. code: #include #include int main() { char *ptr; ptr=malloc(sizeof(char)*10); free(ptr); free(ptr); // core dumped } output…
gangadhars
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can a program read its own elf section?

I would like to use ld's --build-id option in order to add build information to my binary. However, I'm not sure how to make this information available inside the program. Assume I want to write a program that writes a backtrace every time an…
e271p314
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Is there a C equivalent for Perl's Carp module?

In some projects I've done in C, I've liked using the following macros which work similar to Perl's warn and die subroutines: #include #include #define warn(...) \ fprintf(stderr, __VA_ARGS__); \ fprintf(stderr, " at %s…
Jake
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how to get current PC register value on MIPS arch?

I'd like to do backtrace on MIPS. Then, I face one problem: how do I get the current PC register value, since it doesn't belong to 32 normal registers.. Thanks for your suggestion..
Randy
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How can I see a value of boost::any if I know the type with gdb

I have a core dump and I am looking at the core dump with gdb. I was wondering if there is a way to be able to examine the value of a boost::any value in gdb? In the core, I had the address to the boost any and so I tried casting it to a placeholder…
bbazso
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