termios: add new baud_t interface, defined to be explicitly numeric

Add an explicitly numeric interface for baudrate setting. For glibc,
this only announces what is a fair accompli, but this is a plausible
way forward for standardization, and may be possible to infill on
non-compliant systems. The POSIX committee has stated:

[https://www.austingroupbugs.net/view.php?id=1916#c7135]

	A future version of this standard is expected to add at least
	the following symbolic constants for use as values of objects
	of type speed_t: B57600, B115200, B230400, B460800, and
	B921600.

	Implementations are encouraged to propose additional
	interfaces which will make it possible to set and query a
	wider range of speeds than just those enumerated by the
	constants beginning with B. If a set of common interfaces
	emerges between several implementations, a future version of
	this standard will likely add those interfaces.

This is exactly that interface.

The use of the term "baud" is due to the need to have a term
contrasting "speed", and it is already well established as a legacy
term -- including in the names of the legacy Bxxx
constants. Futhermore, it *is* valid from the point of view that the
termios interface fundamentally emulates an RS-232 serial port as far
as the application software is concerned.

The documentation states that for the current version of glibc,
speed_t == baud_t, but explicitly declares that this may not be the
case in the future.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

34 files changed, 165 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
index fdccf84..a22e651 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
@@ -2752,9 +2752,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
index 1e3f278..4b5736a 100644
--- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
@@ -3099,9 +3099,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist
index 7b7717d..b8a4478 100644
--- a/sysdeps/unix/sysv/linux/arc/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arc/libc.abilist
@@ -2513,9 +2513,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
index f64bf3f..959e446 100644
--- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
@@ -2805,9 +2805,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
index c065fe8..a930d1a 100644
--- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
@@ -2802,9 +2802,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/cfsetspeed.c b/sysdeps/unix/sysv/linux/cfsetspeed.c
index 8fd9587..8ce46f8 100644
--- a/sysdeps/unix/sysv/linux/cfsetspeed.c
+++ b/sysdeps/unix/sysv/linux/cfsetspeed.c
@@ -31,6 +31,7 @@ __cfsetspeed (struct termios *termios_p, speed_t speed)
 
   return 0;
 }
+libc_hidden_def (__cfsetspeed)
 versioned_symbol (libc, __cfsetspeed, cfsetspeed, GLIBC_2_42);
 
 #if _TERMIOS_OLD_COMPAT
diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
index 69ba60e..6325fc1 100644
--- a/sysdeps/unix/sysv/linux/csky/libc.abilist
+++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
@@ -2789,9 +2789,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
index dea7c09..86b3fbd 100644
--- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
@@ -2826,9 +2826,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
index 4c05ab1..6555592 100644
--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
@@ -3009,9 +3009,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist b/sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist
index 6ab4968..a6cab96 100644
--- a/sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist
@@ -2273,9 +2273,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
index e553bdc..7b7b72a 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
@@ -2785,9 +2785,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
index 1239f0d..df398e4 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
@@ -2952,9 +2952,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
index 943e89a..ca8df6f 100644
--- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
@@ -2838,9 +2838,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
index 9c303d9..9508154 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
@@ -2835,9 +2835,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
index 6eb6fd4..4d51cc4 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
@@ -2913,9 +2913,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
index 58a43bb..7f90fad 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
@@ -2911,9 +2911,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
index abab2ad..fc366d1 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
@@ -2919,9 +2919,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
index 2e31f6e..debd5c3 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
@@ -2821,9 +2821,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/or1k/libc.abilist b/sysdeps/unix/sysv/linux/or1k/libc.abilist
index b54c078..b62d59f 100644
--- a/sysdeps/unix/sysv/linux/or1k/libc.abilist
+++ b/sysdeps/unix/sysv/linux/or1k/libc.abilist
@@ -2263,9 +2263,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
index c30e17c..883e66f 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
@@ -3142,9 +3142,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
index f3c0c02..84cd9e0 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
@@ -3187,9 +3187,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
index 6e1d141..8832568 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
@@ -2896,9 +2896,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
index 441296c..b6ff801 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
@@ -2972,9 +2972,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
index bcc0ed8..1771a23 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
@@ -2516,9 +2516,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
index d55b553..4b48352 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
@@ -2716,9 +2716,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index a45b887..f0decc7 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -3140,9 +3140,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
index 17483dc..da8a2bf 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
@@ -2933,9 +2933,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
index cb62b6e..fb30341 100644
--- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
@@ -2832,9 +2832,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
index ee6f2d0..d716673 100644
--- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
@@ -2829,9 +2829,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
index 943e130..6deedf2 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
@@ -3161,9 +3161,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
index 1017bab..1ce22bf 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
@@ -2797,9 +2797,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/speed.c b/sysdeps/unix/sysv/linux/speed.c
index c9f4bb9..4efb0de 100644
--- a/sysdeps/unix/sysv/linux/speed.c
+++ b/sysdeps/unix/sysv/linux/speed.c
@@ -263,6 +263,7 @@ __cfgetospeed (const struct termios *termios_p)
 {
   return termios_p->c_ospeed;
 }
+libc_hidden_def (__cfgetospeed)
 versioned_symbol (libc, __cfgetospeed, cfgetospeed, GLIBC_2_42);
 
 /* Return the input baud rate stored in *TERMIOS_P.  */
@@ -271,6 +272,7 @@ __cfgetispeed (const struct termios *termios_p)
 {
   return termios_p->c_ispeed;
 }
+libc_hidden_def (__cfgetispeed)
 versioned_symbol (libc, __cfgetispeed, cfgetispeed, GLIBC_2_42);
 
 /* Set the output baud rate stored in *TERMIOS_P to SPEED.  */
@@ -285,6 +287,7 @@ __cfsetospeed (struct termios *termios_p, speed_t speed)
 
   return 0;
 }
+libc_hidden_def (__cfsetospeed)
 versioned_symbol (libc, __cfsetospeed, cfsetospeed, GLIBC_2_42);
 
 /* Set the input baud rate stored in *TERMIOS_P to SPEED. */
@@ -299,6 +302,7 @@ __cfsetispeed (struct termios *termios_p, speed_t speed)
 
   return 0;
 }
+libc_hidden_def (__cfsetispeed)
 versioned_symbol (libc, __cfsetispeed, cfsetispeed, GLIBC_2_42);
 
 #if _TERMIOS_OLD_COMPAT
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
index ccf6ca2..5648772 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
@@ -2748,9 +2748,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
index 1e3e283..25a39d0 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
@@ -2767,9 +2767,14 @@ GLIBC_2.41 sched_getattr F
 GLIBC_2.41 sched_setattr F
 GLIBC_2.42 __inet_ntop_chk F
 GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetibaud F
 GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetobaud F
 GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetbaud F
+GLIBC_2.42 cfsetibaud F
 GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetobaud F
 GLIBC_2.42 cfsetospeed F
 GLIBC_2.42 cfsetspeed F
 GLIBC_2.42 pthread_gettid_np F