CODEWITHSUNDEEP
gdb
Vivek Goel
Vivek Goel

Reputation: 24160

GDB getting executable path from core file

Is there any GDB command to get executable file path? Currently it shows 

Core was generated by ./a.bin

But I don't want to grep the result. Is there a way to get generated path using GDB command.

Upvotes: 2

Views: 1644

Answers (1)

Employed Russian
Employed Russian

Reputation: 213859

Core was generated by ./a.bin

Please note that most OSes have a rather short limit on the length of the executable path that can be recorded in the NT_PRPSINFO ELF note (on Linux, this is limited to 16 characters).

Is there a way to get generated path using GDB command.

I don't believe so.

It is quite simple to write a program to find PT_NOTE segment in the core, then decode (variable sized) ELF notes, until you find the NT_PRPSINFO note, and then you can print the pf_fname member of struct prpsinfo.

But given that the info there may be truncated, it's not clear why you'd want to write such a program.

Upvotes: 3

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