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Bug 1175323 - Bump stdc++compat minimum supported libstdc++ version to 4.3. r=nfroyd

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This commit is contained in:
Mike Hommey 2015-06-17 08:03:59 +09:00
parent dc3312548b
commit aac8b5bca7
2 changed files with 8 additions and 19 deletions
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25
build/unix/stdc++compat/stdc++compat.cpp
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@ -22,28 +22,17 @@
GLIBCXX_3.4.18 is from gcc 4.8.0 (190787)
GLIBCXX_3.4.19 is from gcc 4.8.1 (199309)
GLIBCXX_3.4.20 is from gcc 4.9.0 (199307)
GLIBCXX_3.4.21 is from gcc 5.0 (210290) */
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.
*/
#define GLIBCXX_VERSION(a, b, c) (((a) << 16) | ((b) << 8) | (c))
namespace std {
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 9)
/* Instantiate these templates to avoid GLIBCXX_3.4.9 symbol versions */
template ostream& ostream::_M_insert(double);
template ostream& ostream::_M_insert(long);
template ostream& ostream::_M_insert(unsigned long);
template ostream& ostream::_M_insert(long long);
template ostream& ostream::_M_insert(unsigned long long);
template ostream& ostream::_M_insert(bool);
template ostream& ostream::_M_insert(const void*);
template ostream& __ostream_insert(ostream&, const char*, streamsize);
template istream& istream::_M_extract(double&);
template istream& istream::_M_extract(float&);
template istream& istream::_M_extract(unsigned int&);
template istream& istream::_M_extract(unsigned long&);
template istream& istream::_M_extract(unsigned short&);
template istream& istream::_M_extract(unsigned long long&);
#endif
#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 14)
/* Instantiate these templates to avoid GLIBCXX_3.4.14 symbol versions
* depending on optimization level */

2
config/config.mk
View File

@ -631,7 +631,7 @@ EXPAND_MKSHLIB = $(EXPAND_LIBS_EXEC) $(EXPAND_MKSHLIB_ARGS) -- $(MKSHLIB)
ifneq (,$(MOZ_LIBSTDCXX_TARGET_VERSION)$(MOZ_LIBSTDCXX_HOST_VERSION))
ifneq ($(OS_ARCH),Darwin)
CHECK_STDCXX = @$(TOOLCHAIN_PREFIX)objdump -p $(1) | grep -e 'GLIBCXX_3\.4\.\(9\|[1-9][0-9]\)' > /dev/null && echo 'TEST-UNEXPECTED-FAIL | check_stdcxx | We do not want these libstdc++ symbols to be used:' && $(TOOLCHAIN_PREFIX)objdump -T $(1) | grep -e 'GLIBCXX_3\.4\.\(9\|[1-9][0-9]\)' && exit 1 || true
CHECK_STDCXX = @$(TOOLCHAIN_PREFIX)objdump -p $(1) | grep -e 'GLIBCXX_3\.4\.\(1[1-9]\|[2-9][0-9]\)' > /dev/null && echo 'TEST-UNEXPECTED-FAIL | check_stdcxx | We do not want these libstdc++ symbols to be used:' && $(TOOLCHAIN_PREFIX)objdump -T $(1) | grep -e 'GLIBCXX_3\.4\.\(1[1-9]\|[2-9][0-9]\)' && exit 1 || true
endif
endif