glibc/include/bits
Florian Weimer aaacde11f2 Reduce <limits.h> pollution due to dynamic PTHREAD_STACK_MIN
<limits.h> used to be a header file with no declarations.
GCC's libgomp includes it in a #pragma GCC visibility hidden block.
Including <unistd.h> from <limits.h> (indirectly) declares everything
in <unistd.h> with hidden visibility, resulting in linker failures.

This commit avoids C declarations in assembler mode and only declares
__sysconf in <limits.h> (and not the entire contents of <unistd.h>).
The __sysconf symbol is already part of the ABI.  PTHREAD_STACK_MIN
is no longer defined for __USE_DYNAMIC_STACK_SIZE && __ASSEMBLER__
because there is no possible definition.

Additionally, PTHREAD_STACK_MIN is now defined by <pthread.h> for
__USE_MISC because this is what developers expect based on the macro
name.  It also helps to avoid libgomp linker failures in GCC because
libgomp includes <pthread.h> before its visibility hacks.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-07-12 18:43:32 +02:00
..
types
argp-ldbl.h
cmathcalls.h
cpu-set.h
dlfcn.h
endian.h
err-ldbl.h
error-ldbl.h
error.h
fcntl2.h
getopt_core.h
getopt_ext.h
getopt_posix.h
locale.h
mathcalls-helper-functions.h
mathcalls-narrow.h
mathcalls.h
monetary-ldbl.h
mqueue2.h
poll2.h
posix1_lim.h
posix2_lim.h
printf-ldbl.h
select2.h
setjmp2.h
sigstack.h
sigstksz.h
socket2.h
stab.def
statx-generic.h
statx.h
stdio2.h
stdio-ldbl.h
stdio.h
stdlib-float.h
stdlib-ldbl.h
stdlib.h
string2.h
string_fortified.h
strings_fortified.h
syslog-ldbl.h
syslog.h
types.h
unistd_ext.h
unistd.h
wchar2.h
wchar-ldbl.h
wctype-wchar.h
xopen_lim.h