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Fix vvp segfault on Windows when vvp_net_ptr_t values exceed 4GB. 

Under Windows unsigned long is 32 bits, so we must use unsigned long long
values for 64-bit address masks.
This commit is contained in:
Martin Whitaker 2020-12-04 17:11:14 +00:00
parent 48db632a03
commit 0d6a2f95a8
3 changed files with 17 additions and 5 deletions
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1
configure.in
View File

@ -135,6 +135,7 @@ CXXFLAGS="$iverilog_temp_cxxflags"
AC_CHECK_SIZEOF(unsigned long long)
AC_CHECK_SIZEOF(unsigned long)
AC_CHECK_SIZEOF(unsigned)
AC_CHECK_SIZEOF(void *)
# vvp uses these...
AC_CHECK_LIB(termcap, tputs)

11
vvp/config.h.in
View File

@ -32,6 +32,7 @@
# define SIZEOF_UNSIGNED_LONG 0
#endif
# define SIZEOF_UNSIGNED 0
# define SIZEOF_VOID_P 0
# undef NEED_LU
# undef NEED_TU
@ -127,6 +128,16 @@ typedef unsigned long vvp_time64_t;
#endif /* HAVE_INTTYPES_H */
# if SIZEOF_VOID_P == SIZEOF_UNSIGNED_LONG
# define UINTPTR_C(n) n ## UL
# else
# if SIZEOF_VOID_P == SIZEOF_UNSIGNED_LONG_LONG
# define UINTPTR_C(n) n ## ULL
# else
# error "Unexpected pointer size"
# endif
# endif
# include <cmath>
/* getrusage, /proc/self/statm */

10
vvp/vvp_net.h
View File

@ -1050,20 +1050,20 @@ template <class T> class vvp_sub_pointer_t {
vvp_sub_pointer_t(T*ptr__, unsigned port__)
{
bits_ = reinterpret_cast<uintptr_t> (ptr__);
assert( (bits_ & 3) == 0 );
assert( (port__ & ~3) == 0 );
assert( (bits_ & UINTPTR_C(3)) == 0 );
assert( (port__ & ~UINTPTR_C(3)) == 0 );
bits_ |= port__;
}
~vvp_sub_pointer_t() { }
T* ptr()
{ return reinterpret_cast<T*> (bits_ & ~3UL); }
{ return reinterpret_cast<T*> (bits_ & ~UINTPTR_C(3)); }
const T* ptr() const
{ return reinterpret_cast<const T*> (bits_ & ~3UL); }
{ return reinterpret_cast<const T*> (bits_ & ~UINTPTR_C(3)); }
unsigned port() const { return bits_ & 3; }
unsigned port() const { return bits_ & UINTPTR_C(3); }
bool nil() const { return bits_ == 0; }