glibc

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History

Joseph Myers 0595c98494 Fix mq_notify socket, recv namespace (bug 18546). mq_notify (in the 1996 edition of POSIX) brings in references to recv and socket (not in POSIX until the 2001 edition). This patch fixes this by using __recv and __socket, exporting them from libc at version GLIBC_PRIVATE. Tested for x86_64 and x86 (testsuite and comparison of installed stripped shared libraries; PLT / dynamic symbol table changes render the comparison not particularly useful for libc). [BZ #18546] * socket/recv.c (__recv): Use libc_hidden_def. * socket/socket.c (__socket): Likewise. * sysdeps/mach/hurd/recv.c (__recv): Likewise. * sysdeps/mach/hurd/socket.c (__socket): Likewise. * sysdeps/unix/sysv/linux/generic/recv.c (__recv): Likewise. * sysdeps/unix/sysv/linux/recv.c (__recv): Use libc_hidden_weak. * sysdeps/unix/sysv/linux/socket.c (__socket): Use libc_hidden_def. * sysdeps/unix/sysv/linux/x86_64/recv.c (__recv): Use libc_hidden_weak. * include/sys/socket.h (__socket): Do not use attribute_hidden. Use libc_hidden_proto. (__recv): Likewise. * socket/Versions (libc): Export __recv and __socket at version GLIBC_PRIVATE. * sysdeps/unix/sysv/linux/mq_notify.c (helper_thread): Call __recv instead of recv. (init_mq_netlink): Call __socket instead of socket. * conform/Makefile (test-xfail-POSIX/mqueue.h/linknamespace): Remove variable.		2015-06-17 20:20:08 +00:00
..
bits
wordsize-32
____longjmp_chk.c
access.c
brk.c
chmod.c
chown.c
creat.c
dl-origin.c
dup2.c
epoll_create.c
epoll_wait.c
futimesat.c
getdents64.c
getdents.c
inotify_init.c
kernel_stat.h
lchown.c
link.c
lxstat.c
Makefile
mkdir.c
open64.c
open.c
pause.c
pipe.c
poll.c
readlink_chk.c
readlink.c
README
recv.c	Fix mq_notify socket, recv namespace (bug 18546).	2015-06-17 20:20:08 +00:00
rename.c
rmdir.c
select.c
send.c
symlink.c
syscalls.list
sysctl.c
sysdep.h
umount.c
unlink.c
ustat.c
utimes.c
xmknod.c
xstat.c

README

This hierarchy supports Linux systems using the new
asm-generic/unistd.h, which removes many familiar old syscalls.  For
example, to implement open(), newer Linux architectures require glibc
to invoke the __NR_openat syscall with AT_FDCWD.  This hierarchy
provides all those implementations.

It also provides support for 32-bit platforms using the 64-bit kernel
syscall APIs, as the 32-bit ones are no longer provided.  Note that
newer ILP32 environments (x32 or AArch64:ILP32, for example) are
converting to use more 64-bit types in kernel syscalls, so that aspect
of this support is in more flux as of this writing.