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darling-libcxx/include
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Eric Fiselier 1d6b5d3ed1 Fix strict-aliasing violation in typeinfo::hash_code() 
Summary:
The current implementation of `hash_code()` for uniqued RTTI strings violates strict aliasing by dereferencing a type-punned pointer. Specifically it generates a `const char**` pointer from the address of the `__name` member before casting it to `const size_t*` and dereferencing it to get the hash. This is really just a complex and incorrect way of writing `reinterpret_cast<size_t>(__name)`.

This patch changes the conversion sequence so that it no longer contains UB.


Reviewers: howard.hinnant, mclow.lists

Subscribers: rjmccall, cfe-commits

Differential Revision: https://reviews.llvm.org/D24012

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@283408 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-05 22:55:10 +00:00
..
experimental
Move _LIBCPP_INLINE_VISIBILITY to first declaration in <propagate_const>
2016-09-16 02:16:23 +00:00
ext
Cleanup: move visibility/linkage attributes to the first declaration.
2016-04-22 01:04:55 +00:00
support
[libc++] Add missing locale aliases
2016-09-29 03:35:41 +00:00
__bit_reference
…
__bsd_locale_defaults.h
Reorganize _LIBCPP_LOCALE__L_EXTENSIONS
2016-03-09 15:39:39 +00:00
__bsd_locale_fallbacks.h
Reorganize _LIBCPP_LOCALE__L_EXTENSIONS
2016-03-09 15:39:39 +00:00
__config
Fix strict-aliasing violation in typeinfo::hash_code()
2016-10-05 22:55:10 +00:00
__config_site.in
Expect DLL builds on Windows by default and require a custom __config for static
2016-09-26 22:19:41 +00:00
__debug
Fix undefined behavior in __hash_table
2016-07-23 20:36:55 +00:00
__functional_03
Add an _LIBCPP_NORETURN inline function named __throw_XXX for each exception type we define. They either construct and throw the exception, or abort() (if exceptions are disabled). Use these functions everywhere instead of assert()ing when exceptions are disabled. WARNING: This is a behavior change - but only with exceptions disabled. Reviewed as: https://reviews.llvm.org/D23855.
2016-08-25 15:09:01 +00:00
__functional_base
Add missing _v traits. is_bind_expression_v, is_placeholder_v and uses_allocator_v
2016-09-22 00:23:15 +00:00
__functional_base_03
[libcxx] Rewrite C++03 __invoke.
2015-08-26 20:15:02 +00:00
__hash_table
Fix missing _LIBCPP_INLINE_VISIBILITY macro on C++03 specific __hash_table function
2016-09-25 04:05:46 +00:00
__locale
[libc++] Fix and document visibility attributes for Clang, GCC and Windows.
2016-09-15 22:27:07 +00:00
__mutex_base
Don't use pthread initializers in constexpr constructors. Patch by elram. Reviewed at https://reviews.llvm.org/D21637.
2016-07-18 17:23:06 +00:00
__nullptr
Factor definition of std::nullptr_t out of <cstddef> into a header that can also be used by <stddef.h>.
2015-10-08 20:34:11 +00:00
__refstring
…
__split_buffer
Cleanup: move visibility/linkage attributes to the first declaration.
2015-11-07 01:22:13 +00:00
__sso_allocator
…
__std_stream
Enable and fix warnings during the build.
2015-07-18 20:40:46 +00:00
__string
[libc++] Fix and document visibility attributes for Clang, GCC and Windows.
2016-09-15 22:27:07 +00:00
__threading_support
[libcxx] Fix gcc builds.
2016-09-13 09:32:32 +00:00
__tree
Avoid embedded preprocessor directives in __tree
2016-08-27 19:32:03 +00:00
__tuple
Fix or suppress GCC warnings during build.
2016-08-29 20:43:38 +00:00
__undef___deallocate
Add option to disable __deallocate #warning
2016-07-12 14:39:13 +00:00
__undef_min_max
Add option to disable __deallocate #warning
2016-07-12 14:39:13 +00:00
algorithm
Implement C++17 std::sample.
2016-08-28 22:14:37 +00:00
any
Followon to r279744. Find the other exception types and make __throw_XXX routines (and call them). Remove the generic __libcpp_throw routine, since no one uses it anymore.
2016-08-25 17:47:09 +00:00
array
Add an _LIBCPP_NORETURN inline function named __throw_XXX for each exception type we define. They either construct and throw the exception, or abort() (if exceptions are disabled). Use these functions everywhere instead of assert()ing when exceptions are disabled. WARNING: This is a behavior change - but only with exceptions disabled. Reviewed as: https://reviews.llvm.org/D23855.
2016-08-25 15:09:01 +00:00
atomic
Revert r276506 - Diagnose invalid memory order arguments in <atomic>.
2016-07-23 01:43:53 +00:00
bitset
Avoid narrowing warnings in __bitset constructor
2016-09-02 21:02:11 +00:00
cassert
…
ccomplex
…
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
Split <errno.h> out of <cerrno>.
2015-10-08 20:37:11 +00:00
cfenv
Fix incorrect file header. This is <cfenv> not <cctype>.
2015-10-08 21:17:21 +00:00
cfloat
Split <float.h> out of <cfloat>.
2015-10-08 20:37:44 +00:00
chrono
Last bit of P0006; mark it as complete
2015-11-30 05:39:30 +00:00
cinttypes
Split <inttypes.h> out of <cinttypes>.
2015-10-08 20:38:53 +00:00
ciso646
…
climits
…
clocale
…
CMakeLists.txt
[CMake] NFC. Fixing spelling from r280400
2016-09-01 19:46:02 +00:00
cmath
Remove some additional unnecessary std:: in cmath
2016-10-01 20:38:44 +00:00
codecvt
…
complex
Use __builtin_isnan/isinf/isfinite in complex
2016-10-01 20:38:31 +00:00
complex.h
PR25118: move system_header pragma before uses of include_next to avoid extension warnings for people finding libc++ headers via -I paths.
2015-10-09 00:26:50 +00:00
condition_variable
Cleanup: move visibility/linkage attributes to the first declaration.
2015-11-07 01:22:13 +00:00
csetjmp
Split <setjmp.h> out of <csetjmp>.
2015-10-08 20:41:26 +00:00
csignal
…
cstdarg
…
cstdbool
…
cstddef
PR25118: move system_header pragma before uses of include_next to avoid extension warnings for people finding libc++ headers via -I paths.
2015-10-09 00:26:50 +00:00
cstdint
…
cstdio
cstdio: limit gets to CRT versions below 14
2016-09-01 21:09:19 +00:00
cstdlib
Fix or suppress GCC warnings during build.
2016-08-29 20:43:38 +00:00
cstring
Fix overload sets of strchr, strpbrk, strrchr, memchr and strstr from
2016-02-10 00:59:02 +00:00
ctgmath
…
ctime
…
ctype.h
PR25118: move system_header pragma before uses of include_next to avoid extension warnings for people finding libc++ headers via -I paths.
2015-10-09 00:26:50 +00:00
cwchar
Fix overload sets of strchr, strpbrk, strrchr, memchr and strstr from
2016-02-10 00:59:02 +00:00
cwctype
Split <wctype.h> out of <cwctype>.
2015-10-09 19:57:37 +00:00
deque
Add an _LIBCPP_NORETURN inline function named __throw_XXX for each exception type we define. They either construct and throw the exception, or abort() (if exceptions are disabled). Use these functions everywhere instead of assert()ing when exceptions are disabled. WARNING: This is a behavior change - but only with exceptions disabled. Reviewed as: https://reviews.llvm.org/D23855.
2016-08-25 15:09:01 +00:00
errno.h
Cleanup foo.h headers and __config to work in C
2015-11-06 06:30:12 +00:00
exception
Try 2 - Remove <cstdlib> include from <exception>
2016-09-06 21:25:27 +00:00
float.h
Cleanup foo.h headers and __config to work in C
2015-11-06 06:30:12 +00:00
forward_list
Implement P0084r2. Changing emplace return types.
2016-07-21 03:20:17 +00:00
fstream
Add an _LIBCPP_NORETURN inline function named __throw_XXX for each exception type we define. They either construct and throw the exception, or abort() (if exceptions are disabled). Use these functions everywhere instead of assert()ing when exceptions are disabled. WARNING: This is a behavior change - but only with exceptions disabled. Reviewed as: https://reviews.llvm.org/D23855.
2016-08-25 15:09:01 +00:00
functional
Add missing _v traits. is_bind_expression_v, is_placeholder_v and uses_allocator_v
2016-09-22 00:23:15 +00:00
future
Add an _LIBCPP_NORETURN inline function named __throw_XXX for each exception type we define. They either construct and throw the exception, or abort() (if exceptions are disabled). Use these functions everywhere instead of assert()ing when exceptions are disabled. WARNING: This is a behavior change - but only with exceptions disabled. Reviewed as: https://reviews.llvm.org/D23855.
2016-08-25 15:09:01 +00:00
initializer_list
…
inttypes.h
[include] Declare __STDC_*_MACROS for C++11 compat in old libc
2016-09-26 20:20:00 +00:00
iomanip
Implement std::string_view as described in http://wg21.link/P0254R1. Reviewed as https://reviews.llvm.org/D21459
2016-07-21 05:31:24 +00:00
ios
Make ios_base::failure visibility specified consistent
2016-04-21 23:00:33 +00:00
iosfwd
Make __wrap_iter work with GCC again
2016-02-20 00:19:45 +00:00
iostream
…
istream
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
2016-09-16 00:00:48 +00:00
iterator
[libc++] Remove various C++03 feature test macros
2016-09-25 03:34:28 +00:00
limits
[WebAssembly] Set std::numeric_limits's traps field for WebAssembly.
2016-01-13 16:32:00 +00:00
list
Implement P0084r2. Changing emplace return types.
2016-07-21 03:20:17 +00:00
locale
[libc++] Fix and document visibility attributes for Clang, GCC and Windows.
2016-09-15 22:27:07 +00:00
map
Support allocators with explicit conversion constructors. Fixes bug #29000
2016-08-17 05:58:40 +00:00
math.h
[libc++] Remove math_win32.h
2016-09-24 06:27:28 +00:00
memory
[libc++] Remove various C++03 feature test macros
2016-09-25 03:34:28 +00:00
module.modulemap
Remove __config module to avoid #include cycle when libc headers include libc++'s <foo.h> headers.
2015-10-13 22:13:33 +00:00
mutex
[libcxx] Fix a data race in call_once
2016-09-04 09:55:12 +00:00
new
[libc++] Clarify _LIBCPP_NEW_DELETE_VIS for Windows
2016-09-28 22:28:51 +00:00
numeric
Implement LCM and GCD for C++17. Same code as for Library Fundamentals TS.
2016-07-26 14:29:45 +00:00
ostream
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
2016-09-16 00:00:48 +00:00
queue
Implement P0084r2. Changing emplace return types.
2016-07-21 03:20:17 +00:00
random
Cleanup: move visibility/linkage attributes to the first declaration.
2015-11-07 01:22:13 +00:00
ratio
[libc++] Remove various C++03 feature test macros
2016-09-25 03:34:28 +00:00
regex
Add an _LIBCPP_NORETURN inline function named __throw_XXX for each exception type we define. They either construct and throw the exception, or abort() (if exceptions are disabled). Use these functions everywhere instead of assert()ing when exceptions are disabled. WARNING: This is a behavior change - but only with exceptions disabled. Reviewed as: https://reviews.llvm.org/D23855.
2016-08-25 15:09:01 +00:00
scoped_allocator
[libc++] Remove various C++03 feature test macros
2016-09-25 03:34:28 +00:00
set
Add static_assert to set/multiset/map/multimap/forward_list/deque that the allocator's value_type match the container's value_type. vector/unordered/list/string already do this. Add tests for all the containers to verify this.
2015-11-26 01:24:04 +00:00
setjmp.h
Cleanup foo.h headers and __config to work in C
2015-11-06 06:30:12 +00:00
shared_mutex
Qualify calls to addressof to avoid getting ADL. Fixes PR#27254.
2016-04-13 17:02:23 +00:00
sstream
Move _LIBCPP_INLINE_VISIBILITY to first declaration in sstream.
2016-09-16 02:09:26 +00:00
stack
Implement P0084r2. Changing emplace return types.
2016-07-21 03:20:17 +00:00
stdbool.h
Add stdbool.h wrapper for libc++
2016-02-20 00:16:41 +00:00
stddef.h
PR25118: move system_header pragma before uses of include_next to avoid extension warnings for people finding libc++ headers via -I paths.
2015-10-09 00:26:50 +00:00
stdexcept
Try 2 - Remove <cstdlib> include from <exception>
2016-09-06 21:25:27 +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
Split <stdio.h> out of <cstdio>.
2015-10-09 01:29:09 +00:00
stdlib.h
Cleanup foo.h headers and __config to work in C
2015-11-06 06:30:12 +00:00
streambuf
[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI compatibility
2016-09-16 00:00:48 +00:00
string
Change a couple of 'template <typename's to 'template <class' which is what we use in the rest of the library.
2016-10-03 23:40:48 +00:00
string_view
Followon to r279744. Find the other exception types and make __throw_XXX routines (and call them). Remove the generic __libcpp_throw routine, since no one uses it anymore.
2016-08-25 17:47:09 +00:00
string.h
Instead of asking glibc to provide correct C++ signatures for <string.h>
2016-02-11 23:51:02 +00:00
strstream
…
system_error
Implement is_error_code_v and is_error_condition_v for c++17. Rework the tests for is_error_code and is_error_condition, since they were really lacking. Thanks to Alisdair for the heads-up that we were missing these.
2016-09-24 17:36:14 +00:00
tgmath.h
…
thread
[libcxx] Introduce an externally-threaded libc++ variant.
2016-09-11 21:46:40 +00:00
tuple
Implement the std::pair parts of "Improving pair and tuple". Completes N4387.
2016-07-25 04:32:07 +00:00
type_traits
[libc++] Extension: Make move and forward constexpr in C++11.
2016-09-26 20:55:02 +00:00
typeindex
…
typeinfo
Fix strict-aliasing violation in typeinfo::hash_code()
2016-10-05 22:55:10 +00:00
unordered_map
[libc++] Fix typos causing compilation errors when _LIBCPP_DEBUG_LEVEL >= 2
2016-09-26 21:39:38 +00:00
unordered_set
Cleanup: move visibility/linkage attributes to the first declaration.
2016-04-22 01:04:55 +00:00
utility
Fix pair::operator=(TupleLike&&).
2016-08-29 01:43:41 +00:00
valarray
Use _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY in valarray to support attribute((internal_linkage)).
2016-09-16 00:13:55 +00:00
vector
[libc++] Fix and document visibility attributes for Clang, GCC and Windows.
2016-09-15 22:27:07 +00:00
wchar.h
Fix overload sets of strchr, strpbrk, strrchr, memchr and strstr from
2016-02-10 00:59:02 +00:00
wctype.h
Split <wctype.h> out of <cwctype>.
2015-10-09 19:57:37 +00:00