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glibc/include
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Gabriel F. T. Gomes 37d4262a7a Fix remaining return type of ifunc resolver declaration 
Since Martin Sebor's commit

commit ee4e992ebe
Author: Martin Sebor <msebor@redhat.com>
Date:   Tue Aug 22 09:35:23 2017 -0600

    Declare ifunc resolver to return a pointer to the same type as the target
    function to help GCC detect incompatibilities between the two when it's
    enhanced to do so.

builds for powerpc64le fail in the declaration of some ifunc resolvers,
because the ifunc is declared with unmatching return types.  One of the
declarations comes from the __ifunc_resolver macro, which was patched by
the aforementioned commit:

    /* Helper / base  macros for indirect function symbols.  */
    #define __ifunc_resolver(type_name, name, expr, arg, init, classifier) \
      classifier inhibit_stack_protector                                   \
      __typeof (type_name) *name##_ifunc (arg)                             \

whereas the other comes from the unpatched __ifunc macro when
HAVE_GCC_IFUNC is not defined:

    # define __ifunc(type_name, name, expr, arg, init)                     \
      extern __typeof (type_name) name;                                    \
      void *name##_ifunc (arg) __asm__ (#name);                            \

This patch changes the return type of the ifunc resolver in the __ifunc
macro, so that it matches the return type of the target function,
similarly to what the aforementioned commit does.

Tested for powerpc64le and s390x with unpatched GCC.

	* include/libc-symbols.h: [!defined HAVE_GCC_IFUNC] (__ifunc):
	Change the return type of the ifunc resolver to match the return
	type of the target function.

(cherry picked from commit b513da7e80)
2017-09-19 14:30:22 +02:00
..
arpa nss_dns: Replace local declarations with declarations from a header file 2017-04-04 20:56:23 +02:00
bits Rename xlocale.h to bits/types/__locale_t.h. 2017-06-20 20:28:11 -04:00
gnu Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
net
netinet Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
programs Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
protocols
rpc sunrpc: Always obtain AF_INET addresses from NSS [BZ #20964] 2016-12-27 16:44:15 +01:00
rpcsvc Deprecate libnsl by default (only shared library will be 2017-03-21 15:14:27 +01:00
sys Clean pthread functions namespaces for C11 threads 2017-06-23 17:38:17 -03:00
aio.h
aliases.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
alloc_buffer.h Implement allocation buffers for internal use 2017-06-21 22:43:57 +02:00
alloca.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
argp.h
argz.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
assert.h
atomic.h Optimize generic spinlock code and use C11 like atomic macros. 2017-06-06 09:41:56 +02:00
byteswap.h
caller.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
complex.h float128: Add private _Float128 declarations for libm. 2017-05-15 10:23:28 -03:00
cpio.h
crypt.h Add include/crypt.h. 2016-10-28 22:40:16 -04:00
ctype.h Rename bits/libc-tsd.h to libc-tsd.h (bug 14912). 2015-09-03 20:33:46 +00:00
des.h
dirent.h Mark internal dirent functions hidden 2015-10-15 14:15:41 -07:00
dlfcn.h Mark _dl_catch_error hidden 2015-10-15 14:13:50 -07:00
elf.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
endian.h
envz.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
err.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
errno.h Remove __need macros from errno.h (__need_Emath, __need_error_t). 2017-06-14 08:14:34 -04:00
error.h
execinfo.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
fcntl.h Assume that O_CLOEXEC is always defined and works 2017-04-18 14:56:51 +02:00
features.h Update for 2.26 release 2017-08-02 18:27:16 +05:30
fenv.h Mark fegetround pure (bug 16296). 2015-09-15 20:36:50 +00:00
float.h Include libc-header-start.h in include/float.h 2017-06-23 10:30:04 -03:00
fmtmsg.h
fnmatch.h
fpu_control.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
ftw.h
gconv.h
getopt_int.h
getopt.h getopt: remove USE_NONOPTION_FLAGS 2017-04-07 07:45:53 -04:00
glob.h
gmp.h float128: Add strtof128, wcstof128, and related functions. 2017-06-12 14:48:53 -03:00
gnu-versions.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
grp-merge.h NSS: Implement group merging support. 2016-04-29 22:18:21 -04:00
grp.h
gshadow.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
iconv.h
ifaddrs.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
ifunc-impl-list.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
inline-hashtab.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
langinfo.h
libc-diag.h Split DIAG_* macros to new header libc-diag.h. 2017-02-25 09:59:46 -05:00
libc-internal.h Narrowing the visibility of libc-internal.h even further. 2017-03-01 20:33:46 -05:00
libc-pointer-arith.h Narrowing the visibility of libc-internal.h even further. 2017-03-01 20:33:46 -05:00
libc-symbols.h Fix remaining return type of ifunc resolver declaration 2017-09-19 14:30:22 +02:00
libgen.h
libintl.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
libio.h Remove _IO_MTSAFE_IO from public headers. 2017-05-11 19:14:11 -04:00
limits.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
link.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
list_t.h Remove __need_list_t and __need_res_state. 2017-05-20 19:01:46 -04:00
list.h Remove __need_list_t and __need_res_state. 2017-05-20 19:01:46 -04:00
locale.h
malloc.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
math.h float128: Add signbit alternative for old compilers 2017-06-30 18:34:29 -03:00
mcheck.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
memory.h
mntent.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
monetary.h Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
mqueue.h Fix mq_receive, mq_send mq_timed* namespace (bug 18545). 2015-06-17 20:19:04 +00:00
netdb.h Fix network headers stdint.h namespace (bug 21455). 2017-05-04 20:36:42 +00:00
netgroup.h
nl_types.h
nss.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
nsswitch.h
obstack.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
poll.h
printf.h Rename xlocale.h to bits/types/__locale_t.h. 2017-06-20 20:28:11 -04:00
pthread.h Fix mq_notify pthread_barrier_* namespace (bug 18544). 2015-06-17 20:16:56 +00:00
pty.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
pwd.h Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
regex.h
resolv.h resolv: Introduce struct resolv_context [BZ #21668] 2017-07-03 20:52:59 +02:00
rounding-mode.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sched.h Clean pthread functions namespaces for C11 threads 2017-06-23 17:38:17 -03:00
scratch_buffer.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
search.h Fix sem_* tdelete, tfind, tsearch, twalk namespace (bug 18536). 2015-06-17 20:11:58 +00:00
set-hooks.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setjmp.h Mark internal setjmp functions hidden 2015-10-15 14:22:25 -07:00
sgtty.h
shadow.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
shlib-compat.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
signal.h Fix struct sigaltstack namespace (bug 21517). 2017-06-05 10:17:46 +00:00
spawn.h
stab.h
stackinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stap-probe.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stdc-predef.h Bug 21533: Update to Unicode 10.0.0 2017-06-22 17:02:55 +02:00
stdio_ext.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
stdio.h Avoid backtrace from __stack_chk_fail [BZ #12189] 2017-07-11 07:44:14 -07:00
stdlib.h Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
string.h Remove bits/string.h. 2017-06-20 08:21:24 -04:00
strings.h
stropts.h
stubs-prologue.h
syscall.h
sysexits.h
syslog.h
tar.h
termios.h Clean pthread functions namespaces for C11 threads 2017-06-23 17:38:17 -03:00
tgmath.h
time.h Clean pthread functions namespaces for C11 threads 2017-06-23 17:38:17 -03:00
ttyent.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
uchar.h
ucontext.h
ulimit.h
unistd.h tunables: Use direct syscall for access (BZ#21744) 2017-07-24 11:21:07 -03:00
utime.h
utmp.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
values.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wchar.h Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
wctype.h Remove __need macros from stdio.h and wchar.h. 2017-06-08 13:58:17 -04:00
wordexp.h