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litecoin
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Merge pull request #4042

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05c20a5 build: add symbol for upcoming gcc 4.9's libstdc++ (Cory Fields)
49a3352 gitian-linux: --enable-glibc-back-compat (Warren Togami)
d5aab70 build: add an option for enabling glibc back-compat (Cory Fields)
ffc6b67 build: add glibc/libstdc++ back-compat stubs (Cory Fields)
pull/323/head
Wladimir J. van der Laan 11 years ago
parent 91c601c54a 05c20a553a
commit bbe53f61db
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GPG Key ID: 74810B012346C9A6
5 changed files with 134 additions and 14 deletions
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22
configure.ac
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@ -108,6 +108,12 @@ AC_ARG_ENABLE([lcov],
[use_lcov=yes],
[use_lcov=no])
AC_ARG_ENABLE([glibc-back-compat],
[AS_HELP_STRING([--enable-glibc-back-compat],
[enable backwards compatibility with glibc and libstdc++])],
[use_glibc_compat=$enableval],
[use_glibc_compat=no])
AC_ARG_WITH([protoc-bindir],[AS_HELP_STRING([--with-protoc-bindir=BIN_DIR],[specify protoc bin path])], [protoc_bin_path=$withval], [])
@ -319,6 +325,21 @@ fi
AX_CHECK_LINK_FLAG([[-Wl,--large-address-aware]], [LDFLAGS="$LDFLAGS -Wl,--large-address-aware"])
if test x$use_glibc_compat != xno; then
#__fdelt_chk's params and return type have changed from long unsigned int to long int.
# See which one is present here.
AC_MSG_CHECKING(__fdelt_chk type)
AC_TRY_COMPILE([#define __USE_FORTIFY_LEVEL 2
#include <sys/select.h>
extern "C" long unsigned int __fdelt_warn(long unsigned int);],[],
[ fdelt_type="long unsigned int"],
[ fdelt_type="long int"])
AC_MSG_RESULT($fdelt_type)
AC_DEFINE_UNQUOTED(FDELT_TYPE, $fdelt_type,[parameter and return value type for __fdelt_chk])
fi
if test x$use_hardening != xno; then
AX_CHECK_COMPILE_FLAG([-Wstack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"])
AX_CHECK_COMPILE_FLAG([-fstack-protector-all],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-protector-all"])
@ -691,6 +712,7 @@ AM_CONDITIONAL([USE_QRCODE], [test x$use_qr = xyes])
AM_CONDITIONAL([USE_LCOV],[test x$use_lcov == xyes])
AM_CONDITIONAL([USE_COMPARISON_TOOL],[test x$use_comparison_tool != xno])
AM_CONDITIONAL([USE_COMPARISON_TOOL_REORG_TESTS],[test x$use_comparison_tool_reorg_test != xno])
AM_CONDITIONAL([GLIBC_BACK_COMPAT],[test x$use_glibc_compat = xyes])
AC_DEFINE(CLIENT_VERSION_MAJOR, _CLIENT_VERSION_MAJOR, [Major version])
AC_DEFINE(CLIENT_VERSION_MINOR, _CLIENT_VERSION_MINOR, [Minor version])

15
contrib/gitian-descriptors/gitian-linux.yml
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@ -41,7 +41,7 @@ script: |
cd ../build
function do_configure {
./configure "$@" --enable-upnp-default --prefix=$STAGING --with-protoc-bindir=$STAGING/host/bin --with-boost=$STAGING --disable-maintainer-mode --disable-dependency-tracking PKG_CONFIG_PATH="$STAGING/lib/pkgconfig" CPPFLAGS="-I$STAGING/include ${OPTFLAGS}" LDFLAGS="-L$STAGING/lib ${OPTFLAGS}" CXXFLAGS="-frandom-seed=bitcoin ${OPTFLAGS}" BOOST_CHRONO_EXTRALIBS="-lrt"
./configure "$@" --enable-upnp-default --prefix=$STAGING --with-protoc-bindir=$STAGING/host/bin --with-boost=$STAGING --disable-maintainer-mode --disable-dependency-tracking PKG_CONFIG_PATH="$STAGING/lib/pkgconfig" CPPFLAGS="-I$STAGING/include ${OPTFLAGS}" LDFLAGS="-L$STAGING/lib ${OPTFLAGS}" CXXFLAGS="-frandom-seed=bitcoin ${OPTFLAGS}" BOOST_CHRONO_EXTRALIBS="-lrt" --enable-glibc-back-compat
}
#
cd bitcoin
@ -60,19 +60,6 @@ script: |
make $MAKEOPTS install-strip
make $MAKEOPTS clean
# Build fully static versions of bitcoind and bitcoin-cli for older Linux distros
STATIC_BINDIR="$HOME/bindir.static"
mkdir -p $STATIC_BINDIR
# For 32-bit, -pie cannot be used with -static, as invalid executables are generated
# For 64-bit, -pie with -static causes a link error
# Disable hardening in configure and manually pass 'static-safe' hardening flags
OPTFLAGS='-O2 -static -Wstack-protector -fstack-protector-all -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wl,-z,now'
do_configure --bindir=$STATIC_BINDIR --disable-tests --enable-upnp-default --without-gui --disable-hardening
make $MAKEOPTS
make $MAKEOPTS install-strip
cp $STATIC_BINDIR/bitcoind $BINDIR/bitcoind.static
cp $STATIC_BINDIR/bitcoin-cli $BINDIR/bitcoin-cli.static
# sort distribution tar file and normalize user/group/mtime information for deterministic output
mkdir -p $OUTDIR/src
rm -rf $TEMPDIR

5
src/Makefile.am
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@ -136,6 +136,11 @@ libbitcoin_common_a_SOURCES = \
version.cpp \
$(BITCOIN_CORE_H)
if GLIBC_BACK_COMPAT
libbitcoin_common_a_SOURCES += compat/glibc_compat.cpp
libbitcoin_common_a_SOURCES += compat/glibcxx_compat.cpp
endif
libbitcoin_cli_a_SOURCES = \
rpcclient.cpp \
$(BITCOIN_CORE_H)

19
src/compat/glibc_compat.cpp
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@ -0,0 +1,19 @@
#include "bitcoin-config.h"
#include <cstddef>
#include <sys/select.h>
// Prior to GLIBC_2.14, memcpy was aliased to memmove.
extern "C" void* memmove(void* a, const void* b, size_t c);
extern "C" void* memcpy(void* a, const void* b, size_t c)
{
return memmove(a, b, c);
}
extern "C" void __chk_fail (void) __attribute__((__noreturn__));
extern "C" FDELT_TYPE __fdelt_warn(FDELT_TYPE a)
{
if (a >= FD_SETSIZE)
__chk_fail ();
return a / __NFDBITS;
}
extern "C" FDELT_TYPE __fdelt_chk(FDELT_TYPE) __attribute__((weak, alias("__fdelt_warn")));

87
src/compat/glibcxx_compat.cpp
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@ -0,0 +1,87 @@
#include <cstddef>
#include <istream>
#include <stdexcept>
#include <typeinfo>
#ifndef _GLIBCXX_USE_NOEXCEPT
#define _GLIBCXX_USE_NOEXCEPT throw()
#endif
namespace std {
const char* bad_exception::what() const throw()
{
return "std::bad_exception";
}
const char* bad_cast::what() const throw()
{
return "std::bad_cast";
}
const char* bad_alloc::what() const throw()
{
return "std::bad_alloc";
}
namespace __detail
{
struct _List_node_base
{
void _M_hook(std::__detail::_List_node_base* const __position) throw () __attribute__((used))
{
_M_next = __position;
_M_prev = __position->_M_prev;
__position->_M_prev->_M_next = this;
__position->_M_prev = this;
}
void _M_unhook() __attribute__((used))
{
_List_node_base* const __next_node = _M_next;
_List_node_base* const __prev_node = _M_prev;
__prev_node->_M_next = __next_node;
__next_node->_M_prev = __prev_node;
}
_List_node_base* _M_next;
_List_node_base* _M_prev;
};
} // namespace detail
template ostream& ostream::_M_insert(bool);
template ostream& ostream::_M_insert(long);
template ostream& ostream::_M_insert(double);
template ostream& ostream::_M_insert(unsigned long);
template ostream& ostream::_M_insert(const void*);
template ostream& __ostream_insert(ostream&, const char*, streamsize);
template istream& istream::_M_extract(long&);
template istream& istream::_M_extract(unsigned short&);
out_of_range::~out_of_range() _GLIBCXX_USE_NOEXCEPT { }
// Used with permission.
// See: https://github.com/madlib/madlib/commit/c3db418c0d34d6813608f2137fef1012ce03043d
void
ctype<char>::_M_widen_init() const {
char __tmp[sizeof(_M_widen)];
for (unsigned __i = 0; __i < sizeof(_M_widen); ++__i)
__tmp[__i] = __i;
do_widen(__tmp, __tmp + sizeof(__tmp), _M_widen);
_M_widen_ok = 1;
// Set _M_widen_ok to 2 if memcpy can't be used.
for (unsigned __i = 0; __i < sizeof(_M_widen); ++__i)
if (__tmp[__i] != _M_widen[__i]) {
_M_widen_ok = 2;
break;
}
}
void __throw_out_of_range_fmt(const char*, ...) __attribute__((__noreturn__));
void __throw_out_of_range_fmt(const char* err, ...)
{
// Safe and over-simplified version. Ignore the format and print it as-is.
__throw_out_of_range(err);
}
}// namespace std
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