Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Wed, 25 Nov 2020 13:47:17 +0100 | Subject | Re: [PATCH] riscv: defconfig: k210: Disable CONFIG_VT |
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Hi Damien,
On Wed, Nov 25, 2020 at 12:00 PM Damien Le Moal <Damien.LeMoal@wdc.com> wrote: > On 2020/11/25 18:26, Geert Uytterhoeven wrote: > > On Wed, Nov 25, 2020 at 10:02 AM Damien Le Moal <Damien.LeMoal@wdc.com> wrote: > >> On 2020/11/25 17:51, Geert Uytterhoeven wrote: > >> I was just fiddling with CONFIG_UNIX98_PTYS. Disabling it is OK with the simple > >> busybox userspace (no telnet/xterm like app running). But it saves only about > >> 1KB with my toolchain (gcc 9.3). So I left that one enabled. I am surprised that > >> you see 16K size impact... How big is your image ? > >> > >> For me, it is 1.768 MB right now for the sdcard defconfig, with CONFIG_VT > >> disabled and ext2 enabled. > > > > It might depend on how you measure. "size" says 15 KiB impact for UNIX98 > > ptys, while bloat-o-meter reported less than 7 (my script uses "size"). > > I look at the size of the arch/riscv/boot/loader.bin file since that is what > gets loaded in RAM and booted. It is significantly smaller than vmlinux file > size. E.g. for the sd card defconfig, I have: > > vmlinux: 2369920 B > loader.bin: 1751250 B
Doesn't loader.bin lack bss? Bss does consume RAM, so you do want to take that into account, too.
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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