Re: Building GDB

[Tom Kacvinsky via Gdb <gdb@sourceware.org>]

On Mon, Feb 19, 2024 at 6:01 PM Levente via Gdb <gdb@sourceware.org> 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.
>
> 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