Commands that take address can't parse complex symbols

[disconnect3d]

For complex symbols, e.g. comming from C++, GDB can parse them when we provide them in quotes. E.g. x/10i &'A::foo()'.

Sadly, the same does not work with Pwndbg commands - e.g. vmmap or nearpc just can't parse those.

We need to find a way to properly parse addresses/symbols once and for all.

This bug can be reproduced with the following C++ program:

#include <stdio.h>

struct A {
    void foo() { puts("foo"); }
};

int main() {
    A a;
    a.foo();
}

Compiled as g++ -ggdb -O0 main.cpp -o a.out and then ran in GDB.

Then, x/10i &'A::foo()' will show us disassembly but nearpc or vmmap on the same symbol will not work.

[disconnect3d]

Omg, I feel so stupid. This is not really an issue - I provided the symbol wrong by explicitly calling them. I mean sure, GDB commands work with this, but we do not really need to make the calls and our commands work without calls, so I think we are good to skip this for now.

So TL;DR is - just don't use call operator..:

pwndbg> vmmap A::foo
LEGEND: STACK | HEAP | CODE | DATA | RWX | RODATA
    0x555555555000     0x555555556000 r-xp     1000 1000   /home/user/a.out +0x1ac
pwndbg> nearpc A::foo
 ► 0x5555555551ac <A::foo()>       endbr64
   0x5555555551b0 <A::foo()+4>     push   rbp
   0x5555555551b1 <A::foo()+5>     mov    rbp, rsp
   0x5555555551b4 <A::foo()+8>     sub    rsp, 0x10
   0x5555555551b8 <A::foo()+12>    mov    qword ptr [rbp - 8], rdi
   0x5555555551bc <A::foo()+16>    lea    rax, [rip + 0xe41]
   0x5555555551c3 <A::foo()+23>    mov    rdi, rax
   0x5555555551c6 <A::foo()+26>    call   puts@plt                <puts@plt>

   0x5555555551cb <A::foo()+31>    nop
   0x5555555551cc <A::foo()+32>    leave
   0x5555555551cd <A::foo()+33>    ret
pwndbg>

The A::foo() was probably literally doing a call?

Closing this for now...