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Louis Dionne 61cd687009 [libcxx] By default, do not use internal_linkage to hide symbols from the ABI 
Summary:
https://reviews.llvm.org/D49240 led to symbol size problems in Chromium, and
we expect this may be the case in other projects built in debug mode too.
Instead, unless users explicitly ask for internal_linkage, we use always_inline
like we used to.

In the future, when we have a solution that allows us to drop always_inline
without falling back on internal_linkage, we can replace always_inline by
that.

Note that this commit introduces a change in contract for existing libc++
users: by default, libc++ used to guarantee that TUs built with different
versions of libc++ could be linked together. With the introduction of the
_LIBCPP_HIDE_FROM_ABI_PER_TU macro, the default behavior is that TUs built
with different libc++ versions are not guaranteed to link. This is a change
in contract but not a change in behavior, since the current implementation
still allows linking TUs built with different libc++ versions together.

Reviewers: EricWF, mclow.lists, dexonsmith, hans, rnk

Subscribers: christof, cfe-commits

Differential Revision: https://reviews.llvm.org/D50652

llvm-svn: 339874
 		2018-08-16 12:44:28 +00:00
..
experimental Re-apply "[libcxx] implement <simd> ABI for Clang/GCC vector extension, constructors, copy_from and copy_to." 2018-07-30 22:27:38 +00:00
ext Remove usages of _LIBCPP_MSVC which is never defined 2017-05-10 21:40:58 +00:00
support [libc++] Exclude posix_l/strtonum fallback inclusion for newlib > 2.4 2018-07-27 20:02:58 +00:00
CMakeLists.txt [libc++][C++17] Elementary string conversions for integral types 2018-08-01 02:38:30 +00:00
__bit_reference [Libc++] Use #pragma push_macro/pop_macro to better handle min/max on Windows 2017-05-31 22:07:49 +00:00
__bsd_locale_defaults.h Add system header pragma to BSD locale fallback headers. 2017-08-03 02:50:43 +00:00
__bsd_locale_fallbacks.h [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
__config [libcxx] By default, do not use internal_linkage to hide symbols from the ABI 2018-08-16 12:44:28 +00:00
__config_site.in [libcxx] By default, do not use internal_linkage to hide symbols from the ABI 2018-08-16 12:44:28 +00:00
__debug [libc++] Introduce _LIBCPP_EXTERN_VIS to fix __libcpp_debug_function link errors 2017-01-16 21:01:00 +00:00
__errc [libc++] Lift std::errc into a separated header 2018-07-03 03:25:10 +00:00
__functional_03 [libcxx] func.wrap.func.con: Unset function before destroying anything 2018-04-25 23:38:41 +00:00
__functional_base [libc++] Remove _LIBCPP_BUILDING_XXX macros, which are redundant since _LIBCPP_BUILDING_LIBRARY 2018-08-01 02:08:59 +00:00
__functional_base_03
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__hash_table First half of C++17's splicing maps and sets 2018-08-01 01:33:38 +00:00
__libcpp_version Update version to 8.0.0svn: cmake, includes files and docs 2018-08-01 13:54:28 +00:00
__locale [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
__mutex_base [libc++] Remove _LIBCPP_BUILDING_XXX macros, which are redundant since _LIBCPP_BUILDING_LIBRARY 2018-08-01 02:08:59 +00:00
__node_handle First half of C++17's splicing maps and sets 2018-08-01 01:33:38 +00:00
__nullptr [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
__split_buffer [Libc++] Use #pragma push_macro/pop_macro to better handle min/max on Windows 2017-05-31 22:07:49 +00:00
__sso_allocator Fix PR22634 - std::allocator doesn't respect over-aligned types. 2018-03-22 04:42:56 +00:00
__std_stream [Libc++] Use #pragma push_macro/pop_macro to better handle min/max on Windows 2017-05-31 22:07:49 +00:00
__string Fix misleading indentation; replace a couple of NULLs with nullptr. Resolves https://reviews.llvm.org/D42945 ; thanks to Bruce Mitchener for the patch. 2018-02-06 18:58:05 +00:00
__threading_support libcxx: Unbreak external thread library configuration. 2018-02-21 21:36:18 +00:00
__tree [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
__tuple Cleanup remaining usages of _LIBCPP_HAS_NO_<c++11-feature> in tuple and utility 2017-04-19 01:23:39 +00:00
__undef_macros [Libc++] Use #pragma push_macro/pop_macro to better handle min/max on Windows 2017-05-31 22:07:49 +00:00
algorithm Mark __equal_to 's operations as constexpr. 2018-07-14 04:15:19 +00:00
any [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
array Implement P1023: constexpr comparison operators for std::array 2018-08-02 02:11:06 +00:00
atomic Mark __c11_atomic_load as const 2018-06-01 18:02:53 +00:00
bitset [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
cassert
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ccomplex
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cctype Put back the undefs that Richard removed. Boost won't build w/o these; specifically the file 'bytes_methods.h' in Apple's python framework defines these. 2016-04-04 22:49:20 +00:00
cerrno
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cfenv
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cfloat Test for the presence of a bunch of new macros for c++17. These macros come from C11. Part of P0063 2018-07-31 23:29:06 +00:00
charconv [libc++][C++17] Elementary string conversions for integral types 2018-08-01 02:38:30 +00:00
chrono [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
cinttypes
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ciso646
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climits
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clocale
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cmath [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
codecvt [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
compare [libc++] Declare <compare> operators with the proper visibility attribute 2018-07-10 13:21:03 +00:00
complex [libcxx] Improve accuracy of complex asinh and acosh 2018-02-19 15:41:36 +00:00
complex.h
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condition_variable [libc++] Make _LIBCPP_TYPE_VIS export members 2017-03-02 03:22:18 +00:00
csetjmp
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csignal
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cstdarg
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cstdbool
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cstddef [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
cstdint
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cstdio [libc++] Drop support for CRTs older than VS 2015 2017-04-07 02:20:52 +00:00
cstdlib Selectively import timespec_get into namespace std, since some C libraries don't have it. Reviewed as https://reviews.llvm.org/D50799 2018-08-15 21:19:08 +00:00
cstring
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ctgmath
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ctime Selectively import timespec_get into namespace std, since some C libraries don't have it. Reviewed as https://reviews.llvm.org/D50799 2018-08-15 21:19:08 +00:00
ctype.h [libc++] Refactor Windows support headers. 2017-05-10 20:57:45 +00:00
cwchar [libc++] Remove unnecessary MSVCRT exclusions 2016-11-08 03:31:42 +00:00
cwctype
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deque Implement deduction guides for <deque> 2018-05-18 23:44:13 +00:00
errno.h
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exception [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
filesystem Implement <filesystem> 2018-07-27 03:07:09 +00:00
float.h Test for the presence of a bunch of new macros for c++17. These macros come from C11. Part of P0063 2018-07-31 23:29:06 +00:00
forward_list Fix PR37694 - std::vector doesn't correctly move construct allocators. 2018-06-05 22:32:52 +00:00
fstream Implement <filesystem> 2018-07-27 03:07:09 +00:00
functional [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
future Fix use of incorrect _LIBCXX macro (should be _LIBCPP). 2018-07-24 09:15:03 +00:00
initializer_list [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
inttypes.h [include] Declare __STDC_*_MACROS for C++11 compat in old libc 2016-09-26 20:20:00 +00:00
iomanip Move 'quoted' for string_view from <string_view> to <iomanip> (where the other versions of 'quoted' live. No functional change. 2016-10-27 15:10:07 +00:00
ios [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
iosfwd [NFC] Rename _LIBCPP_TYPE_VIS_ONLY to _LIBCPP_TEMPLATE_VIS 2017-01-04 23:56:00 +00:00
iostream
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istream [libc++] Factor duplicate code into function templates 2018-07-25 19:40:01 +00:00
iterator Mark one more __wrap_iter operation as constexpr. 2018-07-14 03:06:11 +00:00
limits Fix more unreserved names 2017-06-01 02:29:37 +00:00
limits.h [libcxx] Fix gcc build. 2016-10-10 15:56:01 +00:00
list Fix PR37694 - std::vector doesn't correctly move construct allocators. 2018-06-05 22:32:52 +00:00
locale [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
locale.h [libcxx] Implement locale.h to fix modules build 2016-11-19 01:14:15 +00:00
map First half of C++17's splicing maps and sets 2018-08-01 01:33:38 +00:00
math.h [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
memory libcxx: Mark __temp_value::__temp_value as _LIBCPP_NO_CFI. 2018-08-15 17:49:30 +00:00
module.modulemap [libc++][C++17] Elementary string conversions for integral types 2018-08-01 02:38:30 +00:00
mutex Implement most of P0607: Inline Variables for the Standard Library. This involved marking a lot of variables as inline (but only for C++17 and later). 2018-01-02 17:17:01 +00:00
new [libc++] Enable aligned allocation based on feature test macro, irrespective of standard 2018-08-10 13:24:56 +00:00
numeric [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
optional Add deduction guides for optional 2018-05-25 02:08:49 +00:00
ostream [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
queue Deduction guides for the container adaptors - queue, stack, and priority_queue 2018-05-22 01:57:53 +00:00
random Change an internal table of constants for the poisson distribution from 2018-01-16 14:54:36 +00:00
ratio Implement most of P0607: Inline Variables for the Standard Library. This involved marking a lot of variables as inline (but only for C++17 and later). 2018-01-02 17:17:01 +00:00
regex [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
scoped_allocator More of P0600; marking allocation routines as [[nodiscard]] 2017-11-26 02:55:38 +00:00
set First half of C++17's splicing maps and sets 2018-08-01 01:33:38 +00:00
setjmp.h
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shared_mutex [libc++] Remove _LIBCPP_BUILDING_XXX macros, which are redundant since _LIBCPP_BUILDING_LIBRARY 2018-08-01 02:08:59 +00:00
span [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
sstream [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
stack Deduction guides for the container adaptors - queue, stack, and priority_queue 2018-05-22 01:57:53 +00:00
stdbool.h
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stddef.h Check for musl-libc's max_align_t in addition to other variants. 2017-02-10 01:27:42 +00:00
stdexcept [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
stdint.h [include] Declare __STDC_*_MACROS for C++11 compat in old libc 2016-09-26 20:20:00 +00:00
stdio.h libcxx: Rename vasprintf function to __libcpp_vasprintf. 2018-01-23 18:53:33 +00:00
stdlib.h [libc++] Refactor Windows support headers. 2017-05-10 20:57:45 +00:00
streambuf [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
string Address "always inline function is not always inlinable" warning with GCC. 2018-07-17 05:48:48 +00:00
string.h
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string_view Implement LWG3034: P0767R1 breaks previously-standard-layout types 2018-03-21 00:36:05 +00:00
strstream Cleanup _LIBCPP_HAS_NO_<c++11-feature> in the input.output library 2017-04-18 23:38:41 +00:00
system_error [libc++] Remove _LIBCPP_BUILDING_XXX macros, which are redundant since _LIBCPP_BUILDING_LIBRARY 2018-08-01 02:08:59 +00:00
tgmath.h Implement LWG 2835 - fix <tgmath.h> 2018-02-12 19:13:24 +00:00
thread Implement LWG 3039 and 3041 - 'Treating Unnecessary decay'. 2018-03-20 22:37:37 +00:00
tuple Implement P0777: Treating unnecessay decay 2018-02-06 20:56:55 +00:00
type_traits Implement P0887: The identity metafunction 2018-08-02 01:56:02 +00:00
typeindex [NFC] Rename _LIBCPP_TYPE_VIS_ONLY to _LIBCPP_TEMPLATE_VIS 2017-01-04 23:56:00 +00:00
typeinfo [NFC][libc++] Consistently use spaces to indent 2018-08-03 22:36:53 +00:00
unordered_map First half of C++17's splicing maps and sets 2018-08-01 01:33:38 +00:00
unordered_set First half of C++17's splicing maps and sets 2018-08-01 01:33:38 +00:00
utility [libc++] Remove _LIBCPP_BUILDING_XXX macros, which are redundant since _LIBCPP_BUILDING_LIBRARY 2018-08-01 02:08:59 +00:00
valarray Fix PR22634 - std::allocator doesn't respect over-aligned types. 2018-03-22 04:42:56 +00:00
variant Partially Revert "Workaround GCC bug PR78489 - SFINAE order is not respected." 2018-03-23 23:42:30 +00:00
vector [libc++] Take 2: Replace uses of _LIBCPP_ALWAYS_INLINE by _LIBCPP_INLINE_VISIBILITY 2018-07-11 23:14:33 +00:00
version Implement P0754R2: The <version> header. 2018-04-03 15:48:24 +00:00
wchar.h [libc++] Account for Microsoft CRT const overloads 2017-09-15 18:49:34 +00:00
wctype.h
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