Joseph Myers 8b4a118222 Fix -Os gnu_dev_* linknamespace, localplt issues (bug 15105, bug 19463). ... Building with -Os produces linknamespace and localplt failures for, among other functions, gnu_dev_major, gnu_dev_minor and gnu_dev_makedev. The issue is that those functions are not inlined when building with -Os. While one could force them to be inlined in that case, it seems more natural to fix this issue similarly to other namespace issues. Thus, this patch makes gnu_dev_* into weak aliases for hidden symbols __gnu_dev_*; __gnu_dev_* are then defined as inlines in the internal include/sys/sysmacros.h, and uses of gnu_dev_* (often via the macros major, minor and makedev) for which there are namespace issues are changed to use __gnu_dev_*; where there are no namespace issues, use of libc_hidden_proto serves to avoid unnecessary local PLT entry use. Tested for x86_64, (a) without -Os, to verify the testsuite continues to pass without problems and that the functions called under their new names continue to be inlined as expected in that case; (b) with -Os, to verify that the linknamespace and localplt failures in question go away (but because of other such failures present, neither of the relevant bugs can yet be closed). [BZ #15105] [BZ #19463] * include/sys/sysmacros.h [!_ISOMAC] (__SYSMACROS_NEED_IMPLEMENTATION): Define macro. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (_SYS_SYSMACROS_H_WRAPPER): Likewise. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (gnu_dev_major): Use libc_hidden_proto. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (gnu_dev_minor): Likewise. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (gnu_dev_makedev): Likewise. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (__SYSMACROS_DECL_TEMPL): Undefine and redefine to add use __gnu_dev_ prefix. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (__SYSMACROS_IMPL_TEMPL): Likewise. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (__gnu_dev_major): Declare and define as hidden inline function. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (__gnu_dev_minor): Likewise. [!_SYS_SYSMACROS_H_WRAPPER && !_ISOMAC] (__gnu_dev_makedev): Likewise. * misc/makedev.c (OUT_OF_LINE_IMPL_TEMPL): Use __gnu_dev_ prefix. (gnu_dev_major): Use weak_alias and libc_hidden_weak. (gnu_dev_minor): Likewise. (gnu_dev_makedev): Likewise. * csu/check_fds.c (check_one_fd): Use __gnu_dev_makedev instead of makedev. * posix/wordexp.c (exec_comm_child): Likewise. * sysdeps/mach/hurd/xmknodat.c (__xmknodat): Use __gnu_dev_minor instead of minor and __gnu_dev_major instead of major. * sysdeps/unix/sysv/linux/device-nrs.h (DEV_TTY_P): Use __gnu_dev_major instead of major. * sysdeps/unix/sysv/linux/pathconf.c (distinguish_extX): Use __gnu_dev_major instead of gnu_dev_major and __gnu_dev_minor instead of gnu_dev_minor. * sysdeps/unix/sysv/linux/ptsname.c (MASTER_P): Likewise. (SLAVE_P): Likewise. (__ptsname_internal): Use __gnu_dev_minor instead of minor. * sysdeps/unix/sysv/linux/ttyname.h (is_pty): Use __gnu_dev_major instead of major.		2018-02-07 14:57:31 +00:00
..
bits
sys
acct.c
ar.h
brk.c
bug18240.c
bug-hsearch1.c
chflags.c
chroot.c
daemon.c
dirname.c
efgcvt_r.c
efgcvt.c
err.c
err.h
error.c
error.h
fchflags.c
fdatasync.c
fgetxattr.c
flistxattr.c
fremovexattr.c
fsetxattr.c
fstab.c
fstab.h
fsync.c
ftruncate64.c
ftruncate.c
futimes.c
futimesat.c
getauxval.c
getclktck.c
getdomain.c
getdtsz.c
gethostid.c
gethostname.c
getloadavg.c
getpagesize.c
getpass.c
getsysstats.c
getttyent.c
getusershell.c
getxattr.c
gtty.c
hsearch_r.c
hsearch.c
ifunc-impl-list.c
init-misc.c
insremque.c
ioctl.c
lgetxattr.c
libgen.h
listxattr.c
llistxattr.c
lremovexattr.c
lsearch.c
lsetxattr.c
lutimes.c
madvise.c
makedev.c	Fix -Os gnu_dev_* linknamespace, localplt issues (bug 15105, bug 19463).	2018-02-07 14:57:31 +00:00
Makefile
mincore.c
mkdtemp.c
mkostemp64.c
mkostemp.c
mkostemps64.c
mkostemps.c
mkstemp64.c
mkstemp.c
mkstemps64.c
mkstemps.c
mktemp.c
mlock.c
mlockall.c
mmap64.c
mmap.c
mntent_r.c
mntent.c
mntent.h
mprotect.c
msync.c
munlock.c
munlockall.c
munmap.c
preadv2.c
preadv64.c
preadv64v2.c
preadv.c
pselect.c
ptrace.c
pwritev2.c
pwritev64.c
pwritev64v2.c
pwritev.c
qefgcvt_r.c
qefgcvt.c
readv.c
reboot.c
regexp.c
regexp.h
remap_file_pages.c
removexattr.c
revoke.c
sbrk.c
search.h
select.c
setdomain.c
setegid.c
seteuid.c
sethostid.c
sethostname.c
setregid.c
setreuid.c
setxattr.c
sgtty.h
sstk.c
stab.h
stty.c
swapoff.c
swapon.c
sync.c
syncfs.c
syscall.c
syscall.h
sysexits.h
syslog.c
syslog.h
truncate64.c
truncate.c
tsearch.c
tst-atomic-long.c
tst-atomic.c
tst-dirname.c
tst-efgcvt.c
tst-empty.c
tst-error1.c
tst-fdset.c
tst-hsearch.c
tst-insremque.c
tst-makedev.c
tst-mntent2.c
tst-mntent-blank-corrupt.c
tst-mntent-blank-passno.c
tst-mntent.c
tst-preadvwritev2-common.c
tst-preadvwritev2.c
tst-preadvwritev64.c
tst-preadvwritev64v2.c
tst-preadvwritev-common.c
tst-preadvwritev.c
tst-pselect.c
tst-tsearch.c
ttyent.h
ttyslot.c
ualarm.c
usleep.c
ustat.c
ustat.h
utimes.c
Versions
vhangup.c
writev.c