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glibc/include/sys
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Samuel Thibault 3d1870fa33 Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 
On the Hurd, the rtld needs to see its own dumb versions of a few functions
(defined in sysdeps/mach/hurd/dl-sysdep.c) overridden by libc's versions once
loaded. rtld should thus not have hidden attribute for these.  To achieve this,
the Hurd port used to just define NO_HIDDEN, which disables it completely. For
now, this changes that to disabling it for all rtld functions, for simplicity.

See Roland's comment on https://sourceware.org/bugzilla/show_bug.cgi?id=15605#c5

The ld.so numbers remain at

  8 .rel.plt      000000c8  00000c24  00000c24  00000c24  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  9 .plt          000001a0  00000cf0  00000cf0  00000cf0  2**4
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
 10 .plt.got      00000010  00000e90  00000e90  00000e90  2**3
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
 18 .got.plt      00000070  0002d000  0002d000  0002c000  2**2
                  CONTENTS, ALLOC, LOAD, DATA

which is about 3 times as much as on Linux.

The libc.so numbers get divided by 3 (the remainings are mostly RPC stub calls)

	* include/libc-symbols.h [NO_RTLD_HIDDEN] (rtld_hidden_proto,
	rtld_hidden_tls_proto, rtld_hidden_def, rtld_hidden_weak,
	rtld_hidden_rtld_hidden_ver, data_def, rtld_hidden_data_weak,
	rtld_hidden_data_ver): Define to empty.
	* include/assert.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__assert_fail,
	__assert_perror_fail): Likewise.
	* include/dirent.h [IS_IN(rtld) && NO_RTLD_HIDDEN]
	(__rewinddir): Likewise.
	* include/libc-internal.h [IS_IN(rtld) && NO_RTLD_HIDDEN]
	(__profile_frequency): Likewise.
	* include/setjmp.h (__sigsetjmp): Likewise.
	* include/signal.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__sigaction,
	__libc_sigaction): Likewise.
	* include/stdlib.h [NO_RTLD_HIDDEN] (unsetenv, __strtoul_internal): Do
	not set hidden attribute.
	* include/string.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__stpcpy, __strdup,
	__strerror_t, __strsep_g, memchr, memcmp, memcpy, memmove, memset,
	rawmemchr, stpcpy, strchr, strcmp, strlen, strnlen, strsep): Likewise.
	* include/sys/stat.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__fxstat,
	__fxstat64, __lxstat, __lxstat64, __xstat, __xstat64,
	__fxstatat64): Likewise.
	* include/sys/utsname.h [IS_IN(rtld) && NO_RTLD_HIDDEN]
	(__uname): Likewise.
	* include/sysdeps/generic/_itoa.h [IS_IN(rtld) && NO_RTLD_HIDDEN]
	(_itoa_upper_digits, _itoa_lower_digits): Likewise.
	* sysdeps/mach/hurd/configure.ac (NO_HIDDEN): Do not set.
	(NO_RTLD_HIDDEN): Set.
	* sysdeps/mach/hurd/configure: Refresh.
	* config.h.in: Refresh.
2017-10-03 01:33:38 +02:00
..
auxv.h Add a way to bypass the PLT when calling getauxval 2017-06-09 14:36:22 -03:00
bitypes.h
cdefs.h sys/cdefs.h: export __attribute_alloc_size__ 2013-02-18 17:18:57 -05:00
dir.h
epoll.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
errno.h
fcntl.h
file.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
gmon_out.h
gmon.h Remove __bb_init_func and __bb_exit_func [BZ #21974] 2017-08-20 06:39:31 -07:00
ioctl.h Hide internal __ioctl function [BZ #18822] 2017-10-01 15:59:06 -07:00
ipc.h
mman.h Hide internal __mremap function [BZ #18822] 2017-10-01 16:02:04 -07:00
msg.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00
param.h Split sys/param.h out into common file and sysdeps bits/param.h file. 2012-08-17 09:55:17 -07:00
poll.h Add first fixes for conformtest for POSIX2008 2012-02-26 21:32:56 -05:00
prctl.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
profil.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
queue.h
resource.h Hide internal __setrlimit function [BZ #18822] 2017-10-01 17:46:54 -07:00
select.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00
sem.h
sendfile.h
shm.h
signal.h
socket.h __opensock: Remove internal_function attribute 2017-08-17 10:18:15 +02:00
stat.h Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 2017-10-03 01:33:38 +02:00
statfs.h Mark internal statfs functions with attribute_hidden [BZ #18822] 2017-10-01 15:18:25 -07:00
statvfs.h Mark internal statfs functions with attribute_hidden [BZ #18822] 2017-10-01 15:18:25 -07:00
sysctl.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
sysinfo.h Hide internal sysinfo functions [BZ #18822] 2017-10-01 15:57:21 -07:00
syslog.h Test _ISOMAC in include/sys/syslog.h. 2012-11-02 15:41:37 +00:00
sysmacros.h Minimize sysdeps code involved in defining major/minor/makedev. 2016-08-03 15:23:04 -04:00
termios.h
time.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
timeb.h
times.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00
types.h
uio.h Hide __readv and __writev [BZ #18822] 2017-10-01 15:54:10 -07:00
un.h
unistd.h
utsname.h Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 2017-10-03 01:33:38 +02:00
vlimit.h
vtimes.h
wait.h Remove union wait [BZ #19613] 2016-04-14 08:54:57 +02:00
xattr.h