Re: [PATCH] gdb/testsuite: fix an issue that prevents selftest

[Enze Li <enze.li@hotmail.com>]

On Mon, Dec 05 2022 at 02:50:24 PM -0500, Simon Marchi wrote:

> On 12/4/22 09:18, Enze Li via Gdb-patches wrote:
>> When running gdb.gdb/selftest.exp, I see the following warning,
>> ...
>> (gdb) break captured_main
>> Breakpoint 1 at 0x4fdab2
>> (gdb) run -nw -nx -iex "set height 0" -iex "set width 0"
>> Starting program:
>> /home/lee/dev/binutils-gdb/gdb/testsuite/outputs/gdb.gdb/selftest/xgdb
>> -nw -nx -iex "set height 0" -iex "set width 0"
>> [Thread debugging using libthread_db enabled]
>> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
>> 
>> Breakpoint 1, 0x0000555555a51ab2 in captured_main(void*) ()
>> (gdb) FAIL: gdb.gdb/selftest.exp: run until breakpoint at captured_main

Hi Simon,

Thanks for your review.

>
> Doesn't this look like a bug to you?  What is the extra `()` at the end
> of the line?

Hmmm...After digging into it further, I realized that this patch doesn't
fix the root cause; please drop this patch.

Before running the testcase, I used CXXFLAGS="-std=gnu++11" to compile
GDB, which overrides the default "-O2 -g", and directly causes the
compiled GDB to have no debug information.  I think this may have caused
the problem.  Is that what it is?

The extra `()` is supposed to show the arguments, but since it does not
have debugging information, it is empty here.

I sent a new patch to the list to fix the root cause, you might want to
have a look. :)

Best Regards,
Enze