Re: Building GDB

On 20/02/2024 00:55, Tom Kacvinsky via Gdb wrote:
> On Mon, Feb 19, 2024 at 6:01 PM Levente via Gdb <[email protected]> wrote:
>
>> Hi all,
>>
>>
>>
>> I'm putting together a toolchain for AVR micro-controllers, and want to
>> build GDB without binutils. I checked out the source, and when I'm on
>> the binutils-2_42 tag, the build fails with this:
>>
>> CXX    tui/tui-command.o
>> In file included from ../../gdb/tui/tui-data.h:28,
>>                     from ../../gdb/tui/tui-command.c:24:
>> ../../gdb/../gdbsupport/gdb-checked-static-cast.h: In instantiation of
>> ‘T gdb::checked_static_cast(V*) [with T = tui_cmd_window*; V =
>> tui_win_info]’:
>> ../../gdb/tui/tui-command.c:65:15:   required from here
>> ../../gdb/../gdbsupport/gdb-checked-static-cast.h:63:14: error: cannot
>> convert from pointer to base class ‘tui_win_info’ to pointer to derived
>> class ‘tui_cmd_window’ because the base is virtual
>>       63 |   T result = static_cast<T> (v);
>>          |              ^~~~~~~~~~~~~~~~~~
>> make[2]: *** [Makefile:1930: tui/tui-command.o] Error 1
>>
>>
>> So I decided to build gdb and binutils separately from different
>> commits. I can disable GDB by specifying --without-gdb.

Note that this isn't the only top-level component built for GDB only. 
 From an email in January, the full list of components to be disabled 
is: --disable-gdb --disable-gdbserver --disable-libbacktrace 
--disable-libdecnumber --disable-readline --disable-sim

>>
>> The question is, how can I build GDB without binutils?
>>
>> So here is what I want to do:
>>
>> check out binutils-2_42
>> configure/build/install binutils
>> clean the repo
>> chec out gdb-14.1-release
>> configure/build/install gcc
>>
>> How can I do this?
>>
> I did this as follows (through experimentation)
>
> git checkout gdb-14.1-release
> mkdir build
> cd build
> ../configure --disable-binutils --disable-gas --disable-ld --disable-gprof
> --disable-gprofng --prefix=/your/path/here
>
> This will build the bits necessary for building gdb, then build gcore, gdb,
> gdb-add-index and gdbserver.
>
> There might be a better - that is, official - way of doing this.
>
> Tom
>
There was some chat of adding a single option to disable all of GDB and 
all of binutils, but I don't think that was ever implemented... or if it 
was, it escaped my notice.

-- 
Cheers,
Guinevere Larsen
She/Her/Hers