iSH crash while debugging simple program with gdb

[iSH-2020-12-07-125438.ips.zip](https://github.com/ish-app/ish/files/5652722/iSH-2020-12-07-125438.ips.zip)

Repro steps:
1. apk add clang
2. apk add g++
3. apk add gdb
4. Make file `main.cpp` containing:
`#include
int main(int argc, char** argv)
{
printf(“Hello Maciek!”);
return 0;
}`
5. clang -ggdb main.cpp
6. gdb a.out
7. The rest of the steps is here: https://youtu.be/8HGd_zSfIyA