go_plugin_linux.gdb

/mnt/i/development/plugin_test$ gdb ./greeter_linux
Reading symbols from ./greeter_linux...done.
(gdb) b link.addmoduledata
Function "link.addmoduledata" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (link.addmoduledata) pending.
(gdb) display/i $pc
(gdb) b main.main
Breakpoint 2 at 0x51e1d0
(gdb) r
Starting program: /mnt/i/evelopment/plugin_test/greeter_linux
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffffc9e0700 (LWP 174)]

Breakpoint 2, 0x000000000051e1d0 in main.main ()
1: x/i $pc
=> 0x51e1d0 <main.main>:        mov    %fs:0xfffffffffffffff8,%rcx
(gdb) x 0x0080a300
0x80a300 <runtime.lastmoduledatap>:     0x0080f460
(gdb) x *0x0080a300
0x80f460 <runtime.firstmoduledata>:     0x00575fc0
(gdb) x 0x00575fc0
0x575fc0 <runtime.pclntab>:     0xfffffffb
(gdb) b dlopen
Breakpoint 3 at 0x7fffff1f1090: file dlopen.c, line 75.
(gdb) c
Continuing.
Breakpoint 3, __dlopen (file=0xc0000aa000 "/mnt/i/development/plugin_test/eng-linux/eng-linux.so",
    mode=mode@entry=258) at dlopen.c:75
75      dlopen.c: No such file or directory.
1: x/i $pc
=> 0x7fffff1f1090 <__dlopen>:   sub    $0x28,%rsp
(gdb) x 0x0080a300
0x80a300 <runtime.lastmoduledatap>:     0x0080f460
(gdb) x *0x0080a300
0x80f460 <runtime.firstmoduledata>:     0x00575fc0
(gdb) c
Continuing.
Breakpoint 1, 0x00007ffff9e700e0 in link.addmoduledata ()
   from /mnt/i/development/plugin_test/eng-linux/eng-linux.so
1: x/i $pc
=> 0x7ffff9e700e0 <go.link.addmoduledata>:      lea    0x2ff119(%rip),%rdi        # 0x7ffffa16f200 <local.moduledata>
(gdb) si
0x00007ffff9e700e7 in link.addmoduledata () from /mnt/i/development/plugin_test/eng-linux/eng-linux.so
1: x/i $pc
=> 0x7ffff9e700e7 <go.link.addmoduledata+7>:    callq  0x7ffff9e700c0 <runtime.addmoduledata>
(gdb) si
0x00007ffff9e700c0 in runtime.addmoduledata () from /mnt/i/development/plugin_test/eng-linux/eng-linux.so
1: x/i $pc
=> 0x7ffff9e700c0 <runtime.addmoduledata>:      push   %r15
(gdb) si
0x00007ffff9e700c2 in runtime.addmoduledata () from /mnt/i/development/plugin_test/eng-linux/eng-linux.so
1: x/i $pc
=> 0x7ffff9e700c2 <runtime.addmoduledata+2>:    mov    0x2f1f9f(%rip),%r15        # 0x7ffffa162068
(gdb) si
0x00007ffff9e700c9 in runtime.addmoduledata () from /mnt/i/development/plugin_test/eng-linux/eng-linux.so
1: x/i $pc
=> 0x7ffff9e700c9 <runtime.addmoduledata+9>:    mov    (%r15),%rax
(gdb) si
0x00007ffff9e700cc in runtime.addmoduledata () from /mnt/i/development/plugin_test/eng-linux/eng-linux.so
1: x/i $pc
=> 0x7ffff9e700cc <runtime.addmoduledata+12>:   mov    %rdi,0x1c0(%rax)
(gdb) info registers
rax            0x80f460 8451168
rbx            0x7ffffa089800   140737388255232
rcx            0x836560 8611168
rdx            0x7ffffffee108   140737488281864
rsi            0x7ffffffee0f8   140737488281848
rdi            0x7ffffa16f200   140737389195776
rbp            0x1      0x1
rsp            0x7ffffffeda78   0x7ffffffeda78
r8             0x7fffff7e09d8   140737479838168
r9             0x7fffff7e09d8   140737479838168
r10            0x0      0
r11            0x0      0
r12            0x7ffffffee0f8   140737488281848
r13            0x7ffffffee108   140737488281864
r14            0x7ffffa089808   140737388255240
r15            0x80a300 8430336
rip            0x7ffff9e700cc   0x7ffff9e700cc <runtime.addmoduledata+12>
eflags         0x293    [ CF AF SF IF ]
cs             0x33     51
ss             0x2b     43
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0
(gdb) x 0x0080a300
0x80a300 <runtime.lastmoduledatap>:     0x0080f460
(gdb) x *0x0080a300
0x80f460 <runtime.firstmoduledata>:     0x00575fc0
(gdb)