Description David Lee 2019-02-25 21:58:00 EST

I ran a project named gdbtest to configure eclipse and pretty print.
I unexpectedly ran into some very awkward bug.(I just don't know what to say. This is undescribable. How can this happen?)

first, below is my test source code

---
/*
note that this is a modified version of a test source from stackexchange, but I do not remember where.
sorry.
*/
#include <map>
#include <utility>
#include <vector>
#include <cstdio>

int main() {
    std::vector<int> v;
    v.push_back(0);
    v.push_back(1);
    v.push_back(2);
    std::map<int,int> m;

    m[0]=0;
    m[1]=-1;
    m[2]=-2;

    printf("exit normally\n");
    printf("exit normally\n");
}

---

It is very strange. If I break right after the declaration of map which is

std::map<int,int> m;

and then execute further, there is nothing strange.

However, if I break past the declaration and some assignment such as at

    m[1]=-1;
    
It exits with an abnormal exit value of something like 34304.

It doesn't seem to be a bug of gdb since it works fine on the cmd.

-- Configuration Details --
Product: Eclipse IDE 4.10.0.20181214-0600 (org.eclipse.epp.package.cpp.product)Installed Features:
 org.eclipse.platform 4.10.0.v20181206-0815
 
 --stack trace dumped by gdb in case of usefulness--

 Stack trace:
Frame        Function    Args
000FFFFBC70  00180060BE9 (00000000000, 000000102F0, 001801983F0, 000FFFFDE50)
00000000002  00180062ABA (006009C4610, 00000000000, 00000000288, 00000000000)
000FFFFBF50  00180130B1B (00600280DB0, 006007F1C28, 0000000002F, 00000000000)
006009C4480  00180156BC4 (001800C82DE, 0010084956C, 0010084956A, 0018030ABD0)
006009C4480  0018012D1BB (00000000000, 0018010C815, 000FFFFC1C0, 006009C4480)
006009C4480  0018012D4EF (0010066A496, FFFFFFFFFFFFFFFF, 00100849820, FFFFFFFFFFFFFFFF)
006009C4480  001006686EA (006009C4480, 00000000017, 00000000002, 0060097FE80)
006009C4480  0010066ABEC (000FFFFC550, 000FFFFC6A0, 00000000000, 000FFFFC3A8)
00000000000  0010066ACAE (001007D9D60, 00000000000, 00000000000, 000FFFFC3A8)
00000000000  001005770AA (001006692C7, 0018030ABD0, 001007D9FE0, 001007D9E4B)
00000000000  00100521905 (00100799CA9, 006007C5F38, 000FFFFC6A0, 00000000000)
00000000001  0010052196E (858E0E78077D2D7B, 0060024D6F0, 00100667317, 00100666A00)
00000000001  00100685C4A (001005248B6, 00200000000, 858E0E78077D2D7B, 00000000001)
00000000001  00100685CF3 (0060024D6F0, 0018030ABD0, 0010066779B, 00600996770)
00000000001  0010046FE4C (0060067F3D0, 00000000000, 001006623A1, 0060067F3D0)
00000000001  00100470F72 (00000000000, 006007C5EF0, 0018021A8B8, 000FFFFD680)
End of stack trace (more stack frames may be present)