Messages in this thread | | | Date | Fri, 24 Mar 2017 06:50:46 +0300 | From | Baruch Siach <> | Subject | Re: [PATCH 0/3] minitty: a minimal TTY layer alternative for embedded systems |
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Hi Nicolas,
On Thu, Mar 23, 2017 at 05:03:01PM -0400, Nicolas Pitre wrote: > Here's some numbers using a minimal ARM config. > > When CONFIG_TTY=y, the following files are linked into the kernel: > > text data bss dec hex filename > 8796 128 0 8924 22dc drivers/tty/n_tty.o > 12846 276 44 13166 336e drivers/tty/serial/serial_core.o > 4852 489 49 5390 150e drivers/tty/sysrq.o > 1376 0 0 1376 560 drivers/tty/tty_buffer.o > 13571 172 132 13875 3633 drivers/tty/tty_io.o > 3072 0 0 3072 c00 drivers/tty/tty_ioctl.o > 2457 2 120 2579 a13 drivers/tty/tty_ldisc.o > 1328 0 0 1328 530 drivers/tty/tty_ldsem.o > 316 0 0 316 13c drivers/tty/tty_mutex.o > 2516 0 0 2516 9d4 drivers/tty/tty_port.o > 51130 1067 345 52542 cd3e (TOTALS) > > With CONFIG_TTY=n and CONFIG_MINITTY_SERIAL=y, the above is replaced by: > > text data bss dec hex filename > 8776 8 108 8892 22bc drivers/tty/serial/minitty_serial.o
tty_baudrate.o is missing here. It is included in serial_core.o when CONFIG_TTY=y.
baruch
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