On Tue, Aug 27, 2019 at 1:27 PM Giuseppe Crino' <giuscri@xxxxxxxxx> wrote:
>
> Hello, to debug some issues I built and installed git via
>
> $ make prefix=/usr/local DEVELOPER=1 CFLAGS="-O0 -g"
> $ sudo make install
> $ git --version # git version 2.23.0.40.g4d8aada92f
Hmm, could it be perhaps that CFLAGS is being overwritten? To debug
Git with GDB I always add this to my config.mak file:
CFLAGS += -g3 -O0
LDFLAGS += -g3 -O0
And then just compile with `make`. Maybe give it a try?
> But it seems there's still some optimization going on that prevents gdb from working correctly.
>
> For example
>
> (gdb) b builtin/config.c:752
> Breakpoint 1 at 0x43942: file builtin/config.c, line 752.
> (gdb) r config --global --edit
> Starting program: /usr/local/bin/git config --global --edit
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libth
> read_db.so.1".
>
> Breakpoint 1, cmd_config (argc=0, argv=<optimized out>,
> prefix=<optimized out>) at builtin/config.c:753
> 753 if (fd >= 0) {
> (gdb) p fd
> $1 = <optimized out>
>
> What am I missing?
>
> -Giuseppe
