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tools: termios_linux.h: Fix compilation on non-glibc systems

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TCGETS2 is defined in header file asm/ioctls.h provided by linux kernel.
On glib systems it is automatically included by some other glibc include
header file and therefore TCGETS2 is present in termios_linux.h when
linux kernel provides it.

On non-glibc systems (e.g. musl) asm/ioctls.h is not automatically included
which results in the strange error that BOTHER is supported, TCGETS2 not
defined and struct termios does not provide c_ispeed member.

    tools/kwboot.c: In function 'kwboot_tty_change_baudrate':
    tools/kwboot.c:662:6: error: 'struct termios' has no member named 'c_ospeed'
      662 |   tio.c_ospeed = tio.c_ispeed = baudrate;
          |      ^

Fix this issue by explicitly including asm/ioctls.h file which provides
TCGETS2 macro (if supported on selected architecture) to not depending on
glibc auto-include behavior and because termios_linux.h requires it.

With this change it is possible compile kwboot with musl libc.

Reported-by: Michal Vasilek <michal.vasilek@nic.cz>
Signed-off-by: Pali Rohár <pali@kernel.org>
This commit is contained in:
Pali Rohár 2022-09-08 16:59:36 +02:00 committed by Stefan Roese
parent 64c422b14f
commit 634aa8e586
1 changed files with 1 additions and 0 deletions
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tools/termios_linux.h
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@ -29,6 +29,7 @@
#include <errno.h> #include <errno.h>
#include <sys/ioctl.h> #include <sys/ioctl.h>
#include <sys/types.h> #include <sys/types.h>
#include <asm/ioctls.h>
#include <asm/termbits.h> #include <asm/termbits.h>
#if defined(BOTHER) && defined(TCGETS2) #if defined(BOTHER) && defined(TCGETS2)