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Bug 1278456 - Remove stdc++-compat hacks for libstdc++ < 4.6.1. r=froydnj

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This commit is contained in:
Mike Hommey 2016-06-07 13:52:04 +09:00
parent c5caa62fdf
commit 9ae35b95e7
1 changed files with 5 additions and 113 deletions
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118
build/unix/stdc++compat/stdc++compat.cpp
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@ -25,124 +25,16 @@
GLIBCXX_3.4.21 is from gcc 5.0 (210290)
This file adds the necessary compatibility tricks to avoid symbols with
version GLIBCXX_3.4.11 and bigger, keeping binary compatibility with
libstdc++ 4.3.
version GLIBCXX_3.4.16 and bigger, keeping binary compatibility with
libstdc++ 4.6.1.
*/
#define GLIBCXX_VERSION(a, b, c) (((a) << 16) | ((b) << 8) | (c))
namespace std {
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 14)
/* Instantiate these templates to avoid GLIBCXX_3.4.14 symbol versions
* depending on optimization level */
template char *string::_S_construct_aux_2(size_type, char, allocator<char> const&);
#ifdef _GLIBCXX_USE_WCHAR_T
template wchar_t *wstring::_S_construct_aux_2(size_type, wchar_t, allocator<wchar_t> const&);
#endif /* _GLIBCXX_USE_WCHAR_T */
#ifdef __GXX_EXPERIMENTAL_CXX0X__
template string::basic_string(string&&);
template string& string::operator=(string&&);
template wstring::basic_string(wstring&&);
template wstring& wstring::operator=(wstring&&);
template string& string::assign(string&&);
template wstring& wstring::assign(wstring&&);
#endif /* __GXX_EXPERIMENTAL_CXX0X__ */
#endif /* (__GNUC__ == 4) && (__GNUC_MINOR__ >= 5) */
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 16)
/* Instantiate these templates to avoid GLIBCXX_3.4.16 symbol versions
* depending on compiler optimizations */
template int string::_S_compare(size_type, size_type);
#endif
}
namespace std MOZ_EXPORT {
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 14)
/* Hack to avoid GLIBCXX_3.4.14 symbol versions */
struct _List_node_base
{
void hook(_List_node_base * const __position) throw ();
void unhook() throw ();
void transfer(_List_node_base * const __first,
_List_node_base * const __last) throw();
void reverse() throw();
/* Hack to avoid GLIBCXX_3.4.15 symbol versions */
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 15)
static void swap(_List_node_base& __x, _List_node_base& __y) throw ();
};
namespace __detail {
struct _List_node_base
{
#endif
void _M_hook(_List_node_base * const __position) throw ();
void _M_unhook() throw ();
void _M_transfer(_List_node_base * const __first,
_List_node_base * const __last) throw();
void _M_reverse() throw();
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 15)
static void swap(_List_node_base& __x, _List_node_base& __y) throw ();
#endif
};
/* The functions actually have the same implementation */
void
_List_node_base::_M_hook(_List_node_base * const __position) throw ()
{
((std::_List_node_base *)this)->hook((std::_List_node_base * const) __position);
}
void
_List_node_base::_M_unhook() throw ()
{
((std::_List_node_base *)this)->unhook();
}
void
_List_node_base::_M_transfer(_List_node_base * const __first,
_List_node_base * const __last) throw ()
{
((std::_List_node_base *)this)->transfer((std::_List_node_base * const)__first,
(std::_List_node_base * const)__last);
}
void
_List_node_base::_M_reverse() throw ()
{
((std::_List_node_base *)this)->reverse();
}
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 15)
void
_List_node_base::swap(_List_node_base& __x, _List_node_base& __y) throw ()
{
std::_List_node_base::swap(*((std::_List_node_base *) &__x),
*((std::_List_node_base *) &__y));
}
}
#endif
#endif /*MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 14)*/
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 11)
/* Hack to avoid GLIBCXX_3.4.11 symbol versions
An inline definition of ctype<char>::_M_widen_init() used to be in
locale_facets.h before GCC 4.4, but moved out of headers in more
recent versions.
It is actually safe to make it do nothing. */
void ctype<char>::_M_widen_init() const {}
#endif
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 20)
namespace std {
/* We shouldn't be throwing exceptions at all, but it sadly turns out
we call STL (inline) functions that do. */
void __throw_out_of_range_fmt(char const* fmt, ...)
@ -157,9 +49,9 @@ namespace std MOZ_EXPORT {
__throw_range_error(buf);
}
#endif
}
#endif
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 20)
/* Technically, this symbol is not in GLIBCXX_3.4.20, but in CXXABI_1.3.8,