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 --- Stefan, could you include this patch into -rc queue so kwboot can be compiled also with musl libc? --- tools/termios_linux.h | 1 + 1 file changed, 1 insertion(+)

diff --git a/tools/termios_linux.h b/tools/termios_linux.h index 45f5c1233c01..0806a91180a0 100644 --- a/tools/termios_linux.h +++ b/tools/termios_linux.h @@ -29,6 +29,7 @@ #include <errno.h> #include <sys/ioctl.h> #include <sys/types.h> +#include <asm/ioctls.h> #include <asm/termbits.h>

#if defined(BOTHER) && defined(TCGETS2)