glibc.git/include/termios.h, branch master

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

2025-06-17T12:11:38+00:00

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) 
Reviewed-by: Adhemerval Zanella

termios: make __tcsetattr() the internal interface

2025-06-17T12:11:38+00:00

There is a prototype for an internal __tcsetattr() function in
include/termios.h, but tcsetattr without __ were still declared as the
actual functions.

Make this match the comment and make __tcsetattr() an internal
interface. This will be required to version struct termios for Linux on
MIPS and SPARC.

Signed-off-by: H. Peter Anvin (Intel) 
Reviewed-by: Adhemerval Zanella

Hide internal __tcgetattr function [BZ #18822]

2017-10-02T00:48:24+00:00

Hide internal __tcgetattr function to allow direct access within libc.so
and libc.a without using GOT nor PLT.

	[BZ #18822]
	* include/termios.h (__tcgetattr): Add libc_hidden_proto.
	* sysdeps/unix/bsd/tcgetattr.c (__tcgetattr): Add
	libc_hidden_def.
	* sysdeps/unix/sysv/linux/tcgetattr.c (__tcgetattr): Likewise.
	* termios/tcgetattr.c (__tcgetattr): Likewise.

Clean pthread functions namespaces for C11 threads

2017-06-23T20:38:17+00:00

This patch adds internal definition (through {libc_}hidden_{proto,def}) and
also change some strong to weak alias for symbols that might be used by C11
threads implementations.

The patchset should not change libc/libpthread functional, although object
changes are expected (since now internal symbols are used instead) and final
exported symbols through GLIBC_PRIVATE is also expanded (to cover libpthread
usage of __mmap{64}, __munmap, __mprotect).

Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu,
microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
tile{pro,gx}-linux-gnu, and x86_64-linux-gnu).

	* include/sched.h (__sched_get_priority_max): Add libc hidden proto.
	(__sched_get_prioriry_min): Likewise.
	* include/sys/mman.h (__mmap): Likewise.
	(__mmap64): Likewise.
	(__munmap): Likewise.
	(__mprotect): Likewise.
	* include/termios.h (__tcsetattr): Likewise.
	* include/time.h (__nanosleep): Use hidden_proto instead of
	libc_hidden_proto.
	* posix/nanosleep.c (__nanosleep): Likewise.
	* misc/Versions (libc): Export __mmap, __munmap, __mprotect,
	__sched_get_priority_min, and __sched_get_priority_max under
	GLIBC_PRIVATE.
	* nptl/allocatestack.c (__free_stacks): Use internal definition for
	libc symbols.
	(change_stack_perm): Likewise.
	(allocate_stack): Likewise.
	* sysdeps/posix/gethostname.c: Likewise.
	* nptl/tpp.c (__init_sched_fifo_prio): Likewise.
	* sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise.
	* nptl/pthreadP.h (__pthread_mutex_timedlock): Add definition.
	(__pthread_key_delete): Likewise.
	(__pthread_detach): Likewise.
	(__pthread_cancel): Likewise.
	(__pthread_mutex_trylock): Likewise.
	(__pthread_mutexattr_init): Likewise.
	(__pthread_mutexattr_settype): Likewise.
	* nptl/pthread_cancel.c (pthread_cancel): Change to internal name and
	create alias for exported one.
	* nptl/pthread_join.c (pthread_join): Likewise.
	* nptl/pthread_detach.c (pthread_detach): Likewise.
	* nptl/pthread_key_delete.c (pthread_key_delete): Likewise.
	* nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise.
	* nptl/pthread_create.c: Change static requirements for pthread
	symbols.
	* nptl/pthread_equal.c (__pthread_equal): Change strong alias to weak
	for internal definition.
	* nptl/pthread_exit.c (__pthread_exit): Likewise.
	* nptl/pthread_getspecific.c (__pthread_getspecific): Likewise.
	* nptl/pthread_key_create.c (__pthread_key_create): Likewise.
	* nptl/pthread_mutex_destroy.c (__pthread_mutex_destroy): Likewise.
	* nptl/pthread_mutex_init.c (__pthread_mutex_init): Likewise.
	* nptl/pthread_mutex_lock.c (__pthread_mutex_lock): Likewise.
	* nptl/pthread_mutex_trylock.c (__pthread_mutex_trylock): Likewise.
	* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock): Likewise.
	* nptl/pthread_mutexattr_init.c (__pthread_mutexattr_init): Likwise.
	* nptl/pthread_mutexattr_settype.c (__pthread_mutexattr_settype):
	Likewise.
	* nptl/pthread_self.c (__pthread_self): Likewise.
	* nptl/pthread_setspecific.c (__pthread_setspecific): Likewise.
	* sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise.
	* misc/mmap.c (__mmap): Add internal symbol definition.
	* misc/mmap.c (__mmap64): Likewise.
	* sysdeps/unix/sysv/linux/mmap.c (__mmap): Likewise.
	* sysdeps/unix/sysv/linux/mmap64.c (__mmap): Likewise.
	(__mmap64): Likewise.
	* sysdeps/unix/sysv/linux/i386/Versions (libc) [GLIBC_PRIVATE):
	Add __uname.

First steps to get conformtest fully working

2012-02-26T04:18:39+00:00

* include/unistd.h (seteuid, setegid): Add libc_hidden_proto.

2002-08-13T00:24:58+00:00

	* sysdeps/generic/seteuid.c (seteuid): Add libc_hidden_def.
	* sysdeps/generic/setegid.c (setegid): Likewise.
	* sysdeps/mach/hurd/seteuid.c (seteuid): Likewise.
	* sysdeps/mach/hurd/setegid.c (setegid): Likewise.
	* sysdeps/unix/bsd/seteuid.c (seteuid): Likewise.
	* sysdeps/unix/bsd/setegid.c (setegid): Likewise.
	* sysdeps/unix/sysv/aix/seteuid.c (seteuid): Likewise.
	* sysdeps/unix/sysv/aix/setegid.c (setegid): Likewise.
	* sysdeps/unix/sysv/linux/i386/setegid.c (setegid): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c (seteuid): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c (setegid): Likewise.
	* sysdeps/unix/sysv/linux/seteuid.c (seteuid): Likewise.
	* sysdeps/unix/sysv/linux/setegid.c (setegid): Likewise.
	* sysdeps/unix/sysv/linux/i386/seteuid.c (seteuid): Likewise.
	Remove fallback if __ASSUME_SETRESUID_SYSCALL.

	* include/sys/stat.h (__fxstat_internal, __fxstat64_internal,
	__lxstat_internal, __lxstat64_internal): Remove.
	(__fxstat, __fxstat64, __lxstat, __lxstat64, __xstat, __xstat64):
	Add hidden_proto.
	* sysdeps/generic/fxstat.c (__fxstat): Add hidden_def.
	Remove INTDEF where present, remove #undef at the beginning.
	* sysdeps/generic/fxstat64.c (__fxstat64): Likewise.
	* sysdeps/generic/lxstat.c (__lxstat): Likewise.
	* sysdeps/generic/lxstat64.c (__lxstat64): Likewise.
	* sysdeps/generic/xstat.c (__xstat): Likewise.
	* sysdeps/generic/xstat64.c (__xstat64): Likewise.
	* sysdeps/mach/hurd/dl-sysdep.c (__xstat64, __fxstat64): Likewise.
	* sysdeps/mach/hurd/fxstat.c (__fxstat): Likewise.
	* sysdeps/mach/hurd/fxstat64.c (__fxstat64): Likewise.
	* sysdeps/mach/hurd/lxstat.c (__lxstat): Likewise.
	* sysdeps/mach/hurd/lxstat64.c (__lxstat64): Likewise.
	* sysdeps/mach/hurd/xstat.c (__xstat): Likewise.
	* sysdeps/mach/hurd/xstat64.c (__xstat64): Likewise.
	* sysdeps/unix/fxstat.c (__fxstat): Likewise.
	* sysdeps/unix/common/lxstat.c (__lxstat): Likewise.
	* sysdeps/unix/sysv/aix/fxstat.c (__fxstat): Likewise.
	* sysdeps/unix/sysv/aix/fxstat64.c (__fxstat64): Likewise.
	* sysdeps/unix/sysv/aix/lxstat.c (__lxstat): Likewise.
	* sysdeps/unix/sysv/aix/lxstat64.c (__lxstat64): Likewise.
	* sysdeps/unix/sysv/aix/xstat.c (__xstat): Likewise.
	* sysdeps/unix/sysv/aix/xstat64.c (__xstat64): Likewise.
	* sysdeps/unix/sysv/linux/ia64/fxstat.c (__fxstat): Likewise.
	* sysdeps/unix/sysv/linux/ia64/lxstat.c (__lxstat): Likewise.
	* sysdeps/unix/sysv/linux/ia64/xstat.c (__xstat): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/fxstat.c (__fxstat): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/lxstat.c (__lxstat): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/xstat.c (__xstat): Likewise.
	* sysdeps/unix/sysv/linux/i386/fxstat.c (__fxstat): Likewise.
	* sysdeps/unix/sysv/linux/i386/lxstat.c (__lxstat): Likewise.
	* sysdeps/unix/sysv/linux/i386/xstat.c (__xstat): Likewise.
	* sysdeps/unix/sysv/linux/xstat.c (__xstat): Likewise.
	* sysdeps/unix/sysv/linux/xstat64.c (__xstat64): Likewise.
	* sysdeps/unix/sysv/linux/fxstat.c (__fxstat): Likewise.
	* sysdeps/unix/sysv/linux/fxstat64.c (__fxstat64): Likewise.
	* sysdeps/unix/sysv/linux/lxstat.c (__lxstat): Likewise.
	* sysdeps/unix/sysv/linux/lxstat64.c (__lxstat64): Likewise.
	* sysdeps/unix/xstat.c (__xstat): Likewise.

	* include/sys/statvfs.h (statvfs, fstatvfs): Add libc_hidden_proto.
	* sysdeps/generic/statvfs.c (statvfs): Add libc_hidden_def.
	* sysdeps/generic/fstatvfs.c (fstatvfs): Likewise.
	* sysdeps/mach/hurd/statvfs.c (statvfs): Likewise.
	* sysdeps/mach/hurd/fstatvfs.c (fstatvfs): Likewise.
	* sysdeps/unix/sysv/linux/statvfs.c (statvfs): Likewise.
	* sysdeps/unix/sysv/linux/fstatvfs.c (fstatvfs): Likewise.

	* include/unistd.h (tcgetpgrp): Add libc_hidden_proto.
	* include/termios.h (tcsetattr, cfsetispeed, cfsetospeed): Likewise.
	* sysdeps/generic/tcgetpgrp.c (tcgetpgrp): Add libc_hidden_def.
	* sysdeps/generic/tcsetattr.c (tcsetattr): Likewise.
	* sysdeps/generic/speed.c (cfsetispeed, cfsetospeed): Likewise.
	* sysdeps/unix/bsd/bsd4.4/tcsetattr.c (tcgetpgrp): Likewise.
	* sysdeps/unix/bsd/sun/sunos4/tcsetattr.c (tcsetattr): Likewise.
	* sysdeps/unix/bsd/sun/sunos4/speed.c (cfsetispeed, cfsetospeed):
	Likewise.
	* sysdeps/unix/bsd/tcgetpgrp.c (tcgetpgrp): Likewise.
	* sysdeps/unix/bsd/tcsetattr.c (tcsetattr): Likewise.
	* sysdeps/unix/sysv/aix/tcsetattr.c (tcsetattr): Likewise.
	* sysdeps/unix/sysv/aix/speed.c (cfsetispeed, cfsetospeed): Likewise.
	* sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise.
	* sysdeps/unix/sysv/linux/speed.c (cfsetispeed, cfsetospeed): Likewise.
	* sysdeps/unix/sysv/tcgetpgrp.c (tcgetpgrp): Likewise.
	* sysdeps/unix/sysv/tcsetattr.c (tcsetattr): Likewise.

	* include/string.h (strcoll): Add libc_hidden_proto.
	* string/strcoll.c (strcoll): Add libc_hidden_def.

	* misc/err.c (vwarn): Fix pasto in libc_hidden_def.

Update.

2000-12-27T20:25:30+00:00

	* include/setjmp.h: Likewise.

Update.

1999-11-23T17:22:17+00:00

	* include/aio.h: Remove __THROW from internal interfaces.  __THROW
	is only need in external header files that might be compiled by a
	C++ compiler.
	* include/alloca.h: Likewise.
	* include/db.h: Likewise.
	* include/dirent.h: Likewise.
	* include/execinfo.h: Likewise.
	* include/fpu_control.h: Likewise.
	* include/glob.h: Likewise.
	* include/grp.h: Likewise.
	* include/libintl.h: Likewise.
	* include/math.h: Likewise.
	* include/math.h: Likewise.
	* include/mntent.h: Likewise.
	* include/mntent.h: Likewise.
	* include/netdb.h: Likewise.
	* include/pwd.h: Likewise.
	* include/sched.h: Likewise.
	* include/shadow.h: Likewise.
	* include/stdlib.h: Likewise.
	* include/sys/file.h: Likewise.
	* include/sys/gmon.h: Likewise.
	* include/sys/ioctl.h: Likewise.
	* include/sys/socket.h: Likewise.
	* include/sys/stat.h: Likewise.
	* include/sys/sysinfo.h: Likewise.
	* include/sys/time.h: Likewise.
	* include/sys/times.h: Likewise.
	* include/sys/uio.h: Likewise.
	* include/sys/wait.h: Likewise.
	* include/termios.h: Likewise.
	* include/time.h: Likewise.
	* include/ulimit.h: Likewise.
	* include/utmp.h: Likewise.
	* include/wchar.h: Likewise.

1999-11-22  Andreas Jaeger  

	* sunrpc/rpc_clntout.c (printbody): Fix -CLMNab output.
	Patch by Jerry Perkins 	, closes PR
	libc/1456+1457.

1999-11-22  Jakub Jelinek  

	* sysdeps/generic/siglist.h: Avoid declaring the same field
	twice if SIGPWR is defined to SIGLOST.
	* sysdeps/sparc/sparc32/memcpy.S: bcopy takes size_t argument,
	not signed, so we should not special case it for negative args.
	* sysdeps/sparc/sparc32/sparcv9/memmove.c: Don't use generic
	memmove, use the one provided in memcpy.S.
	* sysdeps/sparc/sparc64/memcpy.S: bcopy should handle overlapping
	copies like memmove, while the previous version worked like memcpy.
	Implement optimized assembly memmove.
	* sysdeps/sparc/sparc64/memmove.c: New file.

1999-11-23  Ulrich Drepper  

	* po/cs.po: Update from translators.

1999-11-23  Andreas Jaeger

Update.

1999-10-19T13:53:34+00:00

1999-10-19  Andreas Jaeger  

	* include/bits/ipc.h: Remove K&R compatibility.
	* include/libintl.h: Likewise.
	* include/math.h: Likewise.
	* include/mntent.h: Likewise
	* include/netdb.h: Likewise.
	* include/pwd.h: Likewise.
	* include/sched.h: Likewise.
	* include/shadow.h: Likewise
	* include/stdlib.h: Likewise.
	* include/sys/file.h: Likewise.
	* include/sys/gmon.h: Likewise.
	* include/sys/ioctl.h: Likewise.
	* include/sys/mman.h: Likewise.
	* include/sys/resource.h: Likewise.
	* include/sys/socket.h: Likewise.
	* include/sys/stat.h: Likewise.
	* include/sys/sysinfo.h: Likewise.
	* include/sys/time.h: Likewise.
	* include/sys/times.h: Likewise.
	* include/sys/uio.h: Likewise.
	* include/sys/wait.h: Likewise.
	* include/termios.h: Likewise.
	* include/time.h: Likewise.
	* include/ulimit.h: Likewise.
	* include/utmp.h: Likewise.
	* include/wchar.h: Likewise.
	* include/wctype.h: Likewise.

1999-10-19  Andreas Jaeger  

	* math/libm-test.inc: Remove one K&R compatibility.
	(main): Enable nexttoward_test.

	* math/gen-libm-test.pl (output_ulps): Output name of Ulps file to
	libm-test-ulps.h; pretty print output a bit.

1999-10-19  Andreas Jaeger  

	* iconv/iconv_prog.c (main): Set exit value in case that reading
	from stdin failed [PR libc/1404].

Update.

1998-09-06T23:45:24+00:00

1998-09-06 09:53 -0400  Zack Weinberg  

	* Makeconfig (+gccwarn): Remove -Wno-parentheses.

	* elf/dl-open.c: Quiet -Wparentheses warnings.
	* iconvdata/johab.c: Likewise.
	* iconvdata/uhc.c: Likewise.
	* inet/inet_net.c: Likewise.
	* io/fts.c: Likewise.
	* locale/newlocale.c: Likewise.
	* misc/getttyent.c: Likewise.
	* misc/mntent_r.c: Likewise.
	* misc/ttyslot.c: Likewise.
	* nscd/nscd_conf.c: Likewise.
	* nss/nsswitch.c: Likewise.
	* resolv/gethnamaddr.c: Likewise.
	* resolv/nsap_addr.c: Likewise.
	* resolv/res_debug.c: Likewise.
	* stdio-common/_itoa.c: Likewise.
	* stdlib/strtod.c: Likewise.
	* string/strverscmp.c: Likewise.
	* sunrpc/svc.c: Likewise.
	* sysdeps/libm-ieee754/e_cosh.c: Likewise.
	* sysdeps/libm-ieee754/e_gamma_r.c: Likewise.
	* sysdeps/libm-ieee754/e_sinh.c: Likewise.
	* sysdeps/posix/getaddrinfo.c: Likewise.

	* include/dlfcn.h: Likewise.
	* elf/dlfcn.h: Declare dladdr only for __USE_GNU.
	Define RTLD_DEFAULT.