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-rw-r--r--gold/ChangeLog48
-rw-r--r--gold/reloc.h556
-rw-r--r--gold/testsuite/Makefile.am5
-rw-r--r--gold/testsuite/Makefile.in34
-rw-r--r--gold/testsuite/overflow_unittest.cc139
5 files changed, 632 insertions, 150 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog
index ae50474..ecb5057 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,51 @@
+2016-02-06 Cary Coutant <ccoutant@gmail.com>
+
+ PR gold/18695
+ * reloc.h (Relocate_functions::Address): New typedef.
+ (Relocate_functions::Addendtype): New typedef.
+ (Relocate_functions::Overflow_check): New enum type.
+ (Relocate_functions::Reloc_status): New enum type.
+ (Relocate_functions::check_overflow): New function template.
+ (Relocate_functions::rel): Add check parameter; check for overflow.
+ (Relocate_functions::rel_unaligned): Likewise.
+ (Relocate_functions::rela): Likewise.
+ (Relocate_functions::pcrel): Likewise.
+ (Relocate_functions::pcrel_unaligned): Likewise.
+ (Relocate_functions::pcrela): Likewise.
+ (Relocate_functions::rel8): Adjust parameter types.
+ (Relocate_functions::rela8): Likewise.
+ (Relocate_functions::pcrel8): Likewise.
+ (Relocate_functions::pcrela8): Likewise.
+ (Relocate_functions::rel16): Likewise.
+ (Relocate_functions::rela168): Likewise.
+ (Relocate_functions::pcrel16): Likewise.
+ (Relocate_functions::pcrela16): Likewise.
+ (Relocate_functions::rel32): Likewise.
+ (Relocate_functions::rel32_unaligned): Likewise.
+ (Relocate_functions::rela32): Likewise.
+ (Relocate_functions::pcrel32): Likewise.
+ (Relocate_functions::pcrel32_unaligned): Likewise.
+ (Relocate_functions::pcrela32): Likewise.
+ (Relocate_functions::rel8_check): New function.
+ (Relocate_functions::rela8_check): New function.
+ (Relocate_functions::pcrel8_check): New function.
+ (Relocate_functions::pcrela8_check): New function.
+ (Relocate_functions::rel16_check): New function.
+ (Relocate_functions::rela168_check): New function.
+ (Relocate_functions::pcrel16_check): New function.
+ (Relocate_functions::pcrela16_check): New function.
+ (Relocate_functions::rel32_check): New function.
+ (Relocate_functions::rel32_unaligned_check): New function.
+ (Relocate_functions::rela32_check): New function.
+ (Relocate_functions::pcrel32_check): New function.
+ (Relocate_functions::pcrel32_unaligned_check): New function.
+ (Relocate_functions::pcrela32_check): New function.
+ (Bits::has_unsigned_overflow32): New function.
+ (Bits::has_unsigned_overflow): New function.
+ * testsuite/Makefile.am (overflow_unittest): New test.
+ * testsuite/Makefile.in: Regenerate.
+ * testsuite/overflow_unittest.cc: New source file.
+
2016-02-04 Alan Modra <amodra@gmail.com>
* powerpc.cc (relocate): Adjust last patch for big-endian.
diff --git a/gold/reloc.h b/gold/reloc.h
index 5a72f27..4f1e753 100644
--- a/gold/reloc.h
+++ b/gold/reloc.h
@@ -321,406 +321,652 @@ class Relocatable_relocs
Output_data* posd_;
};
+template<int valsize>
+class Bits;
+
// Standard relocation routines which are used on many targets. Here
// SIZE and BIG_ENDIAN refer to the target, not the relocation type.
template<int size, bool big_endian>
class Relocate_functions
{
-private:
+ public:
+ typedef typename elfcpp::Elf_types<size>::Elf_Addr Address;
+ typedef typename elfcpp::Elf_types<size>::Elf_Swxword Addendtype;
+
+ enum Overflow_check
+ {
+ CHECK_NONE,
+ CHECK_SIGNED,
+ CHECK_UNSIGNED,
+ CHECK_SIGNED_OR_UNSIGNED
+ };
+
+ enum Reloc_status
+ {
+ RELOC_OK,
+ RELOC_OVERFLOW
+ };
+
+ private:
+ // Check for overflow.
+ template<int valsize>
+ static inline Reloc_status
+ check_overflow(Address value, Overflow_check check)
+ {
+ switch (check)
+ {
+ case CHECK_SIGNED:
+ if (size == 32)
+ return (Bits<valsize>::has_overflow32(value)
+ ? RELOC_OVERFLOW
+ : RELOC_OK);
+ else
+ return (Bits<valsize>::has_overflow(value)
+ ? RELOC_OVERFLOW
+ : RELOC_OK);
+ case CHECK_UNSIGNED:
+ if (size == 32)
+ return (Bits<valsize>::has_unsigned_overflow32(value)
+ ? RELOC_OVERFLOW
+ : RELOC_OK);
+ else
+ return (Bits<valsize>::has_unsigned_overflow(value)
+ ? RELOC_OVERFLOW
+ : RELOC_OK);
+ case CHECK_SIGNED_OR_UNSIGNED:
+ if (size == 32)
+ return (Bits<valsize>::has_signed_unsigned_overflow32(value)
+ ? RELOC_OVERFLOW
+ : RELOC_OK);
+ else
+ return (Bits<valsize>::has_signed_unsigned_overflow64(value)
+ ? RELOC_OVERFLOW
+ : RELOC_OK);
+ case CHECK_NONE:
+ default:
+ return RELOC_OK;
+ }
+ }
+
// Do a simple relocation with the addend in the section contents.
// VALSIZE is the size of the value.
template<int valsize>
- static inline void
- rel(unsigned char* view,
- typename elfcpp::Swap<valsize, big_endian>::Valtype value)
+ static inline Reloc_status
+ rel(unsigned char* view, Address value, Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
Valtype* wv = reinterpret_cast<Valtype*>(view);
- Valtype x = elfcpp::Swap<valsize, big_endian>::readval(wv);
- elfcpp::Swap<valsize, big_endian>::writeval(wv, x + value);
+ Valtype addend = elfcpp::Swap<valsize, big_endian>::readval(wv);
+ value += addend;
+ elfcpp::Swap<valsize, big_endian>::
+ writeval(wv, static_cast<Valtype>(value));
+ return check_overflow<valsize>(value, check);
}
// Like the above but for relocs at unaligned addresses.
template<int valsize>
- static inline void
- rel_unaligned(unsigned char* view,
- typename elfcpp::Swap<valsize, big_endian>::Valtype value)
+ static inline Reloc_status
+ rel_unaligned(unsigned char* view, Address value, Overflow_check check)
{
typedef typename elfcpp::Swap_unaligned<valsize, big_endian>::Valtype
Valtype;
- Valtype x = elfcpp::Swap_unaligned<valsize, big_endian>::readval(view);
- elfcpp::Swap_unaligned<valsize, big_endian>::writeval(view, x + value);
+ Valtype addend = elfcpp::Swap_unaligned<valsize, big_endian>::readval(view);
+ value += addend;
+ elfcpp::Swap_unaligned<valsize, big_endian>::
+ writeval(view, static_cast<Valtype>(value));
+ return check_overflow<valsize>(value, check);
}
// Do a simple relocation using a Symbol_value with the addend in
// the section contents. VALSIZE is the size of the value to
// relocate.
template<int valsize>
- static inline void
+ static inline Reloc_status
rel(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
- const Symbol_value<size>* psymval)
+ const Symbol_value<size>* psymval,
+ Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
Valtype* wv = reinterpret_cast<Valtype*>(view);
- Valtype x = elfcpp::Swap<valsize, big_endian>::readval(wv);
- x = psymval->value(object, x);
- elfcpp::Swap<valsize, big_endian>::writeval(wv, x);
+ Valtype addend = elfcpp::Swap<valsize, big_endian>::readval(wv);
+ Address value = psymval->value(object, addend);
+ elfcpp::Swap<valsize, big_endian>::
+ writeval(wv, static_cast<Valtype>(value));
+ return check_overflow<valsize>(value, check);
}
// Like the above but for relocs at unaligned addresses.
template<int valsize>
- static inline void
+ static inline Reloc_status
rel_unaligned(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
- const Symbol_value<size>* psymval)
+ const Symbol_value<size>* psymval,
+ Overflow_check check)
{
typedef typename elfcpp::Swap_unaligned<valsize, big_endian>::Valtype
Valtype;
- Valtype x = elfcpp::Swap_unaligned<valsize, big_endian>::readval(view);
- x = psymval->value(object, x);
- elfcpp::Swap_unaligned<valsize, big_endian>::writeval(view, x);
+ Valtype addend = elfcpp::Swap_unaligned<valsize, big_endian>::readval(view);
+ Address value = psymval->value(object, addend);
+ elfcpp::Swap_unaligned<valsize, big_endian>::writeval(view, value);
+ return check_overflow<valsize>(value, check);
}
// Do a simple relocation with the addend in the relocation.
// VALSIZE is the size of the value.
template<int valsize>
- static inline void
- rela(unsigned char* view,
- typename elfcpp::Swap<valsize, big_endian>::Valtype value,
- typename elfcpp::Swap<valsize, big_endian>::Valtype addend)
+ static inline Reloc_status
+ rela(unsigned char* view, Address value, Addendtype addend,
+ Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
Valtype* wv = reinterpret_cast<Valtype*>(view);
- elfcpp::Swap<valsize, big_endian>::writeval(wv, value + addend);
+ value += addend;
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, value);
+ return check_overflow<valsize>(value, check);
}
// Do a simple relocation using a symbol value with the addend in
// the relocation. VALSIZE is the size of the value.
template<int valsize>
- static inline void
+ static inline Reloc_status
rela(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- typename elfcpp::Swap<valsize, big_endian>::Valtype addend)
+ Addendtype addend,
+ Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
Valtype* wv = reinterpret_cast<Valtype*>(view);
- Valtype x = psymval->value(object, addend);
- elfcpp::Swap<valsize, big_endian>::writeval(wv, x);
+ Address value = psymval->value(object, addend);
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, value);
+ return check_overflow<valsize>(value, check);
}
// Do a simple PC relative relocation with the addend in the section
// contents. VALSIZE is the size of the value.
template<int valsize>
- static inline void
- pcrel(unsigned char* view,
- typename elfcpp::Swap<valsize, big_endian>::Valtype value,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
+ static inline Reloc_status
+ pcrel(unsigned char* view, Address value, Address address,
+ Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
Valtype* wv = reinterpret_cast<Valtype*>(view);
- Valtype x = elfcpp::Swap<valsize, big_endian>::readval(wv);
- elfcpp::Swap<valsize, big_endian>::writeval(wv, x + value - address);
+ Valtype addend = elfcpp::Swap<valsize, big_endian>::readval(wv);
+ value = value + addend - address;
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, value);
+ return check_overflow<valsize>(value, check);
}
// Like the above but for relocs at unaligned addresses.
template<int valsize>
- static inline void
- pcrel_unaligned(unsigned char* view,
- typename elfcpp::Swap<valsize, big_endian>::Valtype value,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
+ static inline Reloc_status
+ pcrel_unaligned(unsigned char* view, Address value, Address address,
+ Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
- Valtype x = elfcpp::Swap_unaligned<valsize, big_endian>::readval(view);
- elfcpp::Swap_unaligned<valsize, big_endian>::writeval(view,
- x + value - address);
+ Valtype addend = elfcpp::Swap_unaligned<valsize, big_endian>::readval(view);
+ value = value + addend - address;
+ elfcpp::Swap_unaligned<valsize, big_endian>::writeval(view, value);
+ return check_overflow<valsize>(value, check);
}
// Do a simple PC relative relocation with a Symbol_value with the
// addend in the section contents. VALSIZE is the size of the
// value.
template<int valsize>
- static inline void
+ static inline Reloc_status
pcrel(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
+ Address address,
+ Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
Valtype* wv = reinterpret_cast<Valtype*>(view);
- Valtype x = elfcpp::Swap<valsize, big_endian>::readval(wv);
- x = psymval->value(object, x);
- elfcpp::Swap<valsize, big_endian>::writeval(wv, x - address);
+ Valtype addend = elfcpp::Swap<valsize, big_endian>::readval(wv);
+ Address value = psymval->value(object, addend) - address;
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, value);
+ return check_overflow<valsize>(value, check);
}
// Do a simple PC relative relocation with the addend in the
// relocation. VALSIZE is the size of the value.
template<int valsize>
- static inline void
- pcrela(unsigned char* view,
- typename elfcpp::Swap<valsize, big_endian>::Valtype value,
- typename elfcpp::Swap<valsize, big_endian>::Valtype addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
+ static inline Reloc_status
+ pcrela(unsigned char* view, Address value, Addendtype addend, Address address,
+ Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
Valtype* wv = reinterpret_cast<Valtype*>(view);
- elfcpp::Swap<valsize, big_endian>::writeval(wv, value + addend - address);
+ value = value + addend - address;
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, value);
+ return check_overflow<valsize>(value, check);
}
// Do a simple PC relative relocation with a Symbol_value with the
// addend in the relocation. VALSIZE is the size of the value.
template<int valsize>
- static inline void
+ static inline Reloc_status
pcrela(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- typename elfcpp::Swap<valsize, big_endian>::Valtype addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
+ Addendtype addend,
+ Address address,
+ Overflow_check check)
{
typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
Valtype* wv = reinterpret_cast<Valtype*>(view);
- Valtype x = psymval->value(object, addend);
- elfcpp::Swap<valsize, big_endian>::writeval(wv, x - address);
+ Address value = psymval->value(object, addend) - address;
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, value);
+ return check_overflow<valsize>(value, check);
}
typedef Relocate_functions<size, big_endian> This;
-public:
+ public:
// Do a simple 8-bit REL relocation with the addend in the section
// contents.
static inline void
- rel8(unsigned char* view, unsigned char value)
- { This::template rel<8>(view, value); }
+ rel8(unsigned char* view, Address value)
+ { This::template rel<8>(view, value, CHECK_NONE); }
+
+ static inline Reloc_status
+ rel8_check(unsigned char* view, Address value, Overflow_check check)
+ { return This::template rel<8>(view, value, check); }
static inline void
rel8(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval)
- { This::template rel<8>(view, object, psymval); }
+ { This::template rel<8>(view, object, psymval, CHECK_NONE); }
+
+ static inline Reloc_status
+ rel8_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Overflow_check check)
+ { return This::template rel<8>(view, object, psymval, check); }
// Do an 8-bit RELA relocation with the addend in the relocation.
static inline void
- rela8(unsigned char* view, unsigned char value, unsigned char addend)
- { This::template rela<8>(view, value, addend); }
+ rela8(unsigned char* view, Address value, Addendtype addend)
+ { This::template rela<8>(view, value, addend, CHECK_NONE); }
+
+ static inline Reloc_status
+ rela8_check(unsigned char* view, Address value, Addendtype addend,
+ Overflow_check check)
+ { return This::template rela<8>(view, value, addend, check); }
static inline void
rela8(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- unsigned char addend)
- { This::template rela<8>(view, object, psymval, addend); }
+ Addendtype addend)
+ { This::template rela<8>(view, object, psymval, addend, CHECK_NONE); }
+
+ static inline Reloc_status
+ rela8_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Addendtype addend,
+ Overflow_check check)
+ { return This::template rela<8>(view, object, psymval, addend, check); }
// Do a simple 8-bit PC relative relocation with the addend in the
// section contents.
static inline void
- pcrel8(unsigned char* view, unsigned char value,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel<8>(view, value, address); }
+ pcrel8(unsigned char* view, unsigned char value, Address address)
+ { This::template pcrel<8>(view, value, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrel8_check(unsigned char* view, unsigned char value, Address address,
+ Overflow_check check)
+ { return This::template pcrel<8>(view, value, address, check); }
static inline void
pcrel8(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel<8>(view, object, psymval, address); }
+ Address address)
+ { This::template pcrel<8>(view, object, psymval, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrel8_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Address address,
+ Overflow_check check)
+ { return This::template pcrel<8>(view, object, psymval, address, check); }
// Do a simple 8-bit PC relative RELA relocation with the addend in
// the reloc.
static inline void
- pcrela8(unsigned char* view, unsigned char value, unsigned char addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrela<8>(view, value, addend, address); }
+ pcrela8(unsigned char* view, Address value, Addendtype addend,
+ Address address)
+ { This::template pcrela<8>(view, value, addend, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrela8_check(unsigned char* view, Address value, Addendtype addend,
+ Address address, Overflow_check check)
+ { return This::template pcrela<8>(view, value, addend, address, check); }
static inline void
pcrela8(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- unsigned char addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrela<8>(view, object, psymval, addend, address); }
+ Addendtype addend,
+ Address address)
+ { This::template pcrela<8>(view, object, psymval, addend, address,
+ CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrela8_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Addendtype addend,
+ Address address,
+ Overflow_check check)
+ { return This::template pcrela<8>(view, object, psymval, addend, address,
+ check); }
// Do a simple 16-bit REL relocation with the addend in the section
// contents.
static inline void
- rel16(unsigned char* view, elfcpp::Elf_Half value)
- { This::template rel<16>(view, value); }
+ rel16(unsigned char* view, Address value)
+ { This::template rel<16>(view, value, CHECK_NONE); }
+
+ static inline Reloc_status
+ rel16_check(unsigned char* view, Address value, Overflow_check check)
+ { return This::template rel<16>(view, value, check); }
static inline void
rel16(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval)
- { This::template rel<16>(view, object, psymval); }
+ { This::template rel<16>(view, object, psymval, CHECK_NONE); }
+
+ static inline Reloc_status
+ rel16_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Overflow_check check)
+ { return This::template rel<16>(view, object, psymval, check); }
// Do an 16-bit RELA relocation with the addend in the relocation.
static inline void
- rela16(unsigned char* view, elfcpp::Elf_Half value, elfcpp::Elf_Half addend)
- { This::template rela<16>(view, value, addend); }
+ rela16(unsigned char* view, Address value, Addendtype addend)
+ { This::template rela<16>(view, value, addend, CHECK_NONE); }
+
+ static inline Reloc_status
+ rela16_check(unsigned char* view, Address value, Addendtype addend,
+ Overflow_check check)
+ { return This::template rela<16>(view, value, addend, check); }
static inline void
rela16(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- elfcpp::Elf_Half addend)
- { This::template rela<16>(view, object, psymval, addend); }
+ Addendtype addend)
+ { This::template rela<16>(view, object, psymval, addend, CHECK_NONE); }
+
+ static inline Reloc_status
+ rela16_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Addendtype addend,
+ Overflow_check check)
+ { return This::template rela<16>(view, object, psymval, addend, check); }
// Do a simple 16-bit PC relative REL relocation with the addend in
// the section contents.
static inline void
- pcrel16(unsigned char* view, elfcpp::Elf_Half value,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel<16>(view, value, address); }
+ pcrel16(unsigned char* view, Address value, Address address)
+ { This::template pcrel<16>(view, value, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrel16_check(unsigned char* view, Address value, Address address,
+ Overflow_check check)
+ { return This::template pcrel<16>(view, value, address, check); }
static inline void
pcrel16(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel<16>(view, object, psymval, address); }
+ Address address)
+ { This::template pcrel<16>(view, object, psymval, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrel16_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Address address,
+ Overflow_check check)
+ { return This::template pcrel<16>(view, object, psymval, address, check); }
// Do a simple 16-bit PC relative RELA relocation with the addend in
// the reloc.
static inline void
- pcrela16(unsigned char* view, elfcpp::Elf_Half value,
- elfcpp::Elf_Half addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrela<16>(view, value, addend, address); }
+ pcrela16(unsigned char* view, Address value, Addendtype addend,
+ Address address)
+ { This::template pcrela<16>(view, value, addend, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrela16_check(unsigned char* view, Address value, Addendtype addend,
+ Address address, Overflow_check check)
+ { return This::template pcrela<16>(view, value, addend, address, check); }
static inline void
pcrela16(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- elfcpp::Elf_Half addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrela<16>(view, object, psymval, addend, address); }
+ Addendtype addend,
+ Address address)
+ { This::template pcrela<16>(view, object, psymval, addend, address,
+ CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrela16_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Addendtype addend,
+ Address address,
+ Overflow_check check)
+ { return This::template pcrela<16>(view, object, psymval, addend, address,
+ check); }
// Do a simple 32-bit REL relocation with the addend in the section
// contents.
static inline void
- rel32(unsigned char* view, elfcpp::Elf_Word value)
- { This::template rel<32>(view, value); }
+ rel32(unsigned char* view, Address value)
+ { This::template rel<32>(view, value, CHECK_NONE); }
+
+ static inline Reloc_status
+ rel32_check(unsigned char* view, Address value, Overflow_check check)
+ { return This::template rel<32>(view, value, check); }
// Like above but for relocs at unaligned addresses.
static inline void
- rel32_unaligned(unsigned char* view, elfcpp::Elf_Word value)
- { This::template rel_unaligned<32>(view, value); }
+ rel32_unaligned(unsigned char* view, Address value)
+ { This::template rel_unaligned<32>(view, value, CHECK_NONE); }
+
+ static inline Reloc_status
+ rel32_unaligned_check(unsigned char* view, Address value,
+ Overflow_check check)
+ { return This::template rel_unaligned<32>(view, value, check); }
static inline void
rel32(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval)
- { This::template rel<32>(view, object, psymval); }
+ { This::template rel<32>(view, object, psymval, CHECK_NONE); }
+
+ static inline Reloc_status
+ rel32_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Overflow_check check)
+ { return This::template rel<32>(view, object, psymval, check); }
// Like above but for relocs at unaligned addresses.
static inline void
rel32_unaligned(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval)
- { This::template rel_unaligned<32>(view, object, psymval); }
+ { This::template rel_unaligned<32>(view, object, psymval, CHECK_NONE); }
- // Do an 32-bit RELA relocation with the addend in the relocation.
+ static inline Reloc_status
+ rel32_unaligned_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Overflow_check check)
+ { return This::template rel_unaligned<32>(view, object, psymval, check); }
+
+ // Do a 32-bit RELA relocation with the addend in the relocation.
static inline void
- rela32(unsigned char* view, elfcpp::Elf_Word value, elfcpp::Elf_Word addend)
- { This::template rela<32>(view, value, addend); }
+ rela32(unsigned char* view, Address value, Addendtype addend)
+ { This::template rela<32>(view, value, addend, CHECK_NONE); }
+
+ static inline Reloc_status
+ rela32(unsigned char* view, Address value, Addendtype addend,
+ Overflow_check check)
+ { return This::template rela<32>(view, value, addend, check); }
static inline void
rela32(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- elfcpp::Elf_Word addend)
- { This::template rela<32>(view, object, psymval, addend); }
+ Addendtype addend)
+ { This::template rela<32>(view, object, psymval, addend, CHECK_NONE); }
+
+ static inline Reloc_status
+ rela32_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Addendtype addend,
+ Overflow_check check)
+ { return This::template rela<32>(view, object, psymval, addend, check); }
// Do a simple 32-bit PC relative REL relocation with the addend in
// the section contents.
static inline void
- pcrel32(unsigned char* view, elfcpp::Elf_Word value,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel<32>(view, value, address); }
+ pcrel32(unsigned char* view, Address value, Address address)
+ { This::template pcrel<32>(view, value, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrel32_check(unsigned char* view, Address value, Address address,
+ Overflow_check check)
+ { return This::template pcrel<32>(view, value, address, check); }
// Unaligned version of the above.
static inline void
- pcrel32_unaligned(unsigned char* view, elfcpp::Elf_Word value,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel_unaligned<32>(view, value, address); }
+ pcrel32_unaligned(unsigned char* view, Address value, Address address)
+ { This::template pcrel_unaligned<32>(view, value, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrel32_unaligned_check(unsigned char* view, Address value, Address address,
+ Overflow_check check)
+ { return This::template pcrel_unaligned<32>(view, value, address, check); }
static inline void
pcrel32(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel<32>(view, object, psymval, address); }
+ Address address)
+ { This::template pcrel<32>(view, object, psymval, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrel32_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Address address,
+ Overflow_check check)
+ { return This::template pcrel<32>(view, object, psymval, address, check); }
// Do a simple 32-bit PC relative RELA relocation with the addend in
// the relocation.
static inline void
- pcrela32(unsigned char* view, elfcpp::Elf_Word value,
- elfcpp::Elf_Word addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrela<32>(view, value, addend, address); }
+ pcrela32(unsigned char* view, Address value, Addendtype addend,
+ Address address)
+ { This::template pcrela<32>(view, value, addend, address, CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrela32_check(unsigned char* view, Address value, Addendtype addend,
+ Address address, Overflow_check check)
+ { return This::template pcrela<32>(view, value, addend, address, check); }
static inline void
pcrela32(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- elfcpp::Elf_Word addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrela<32>(view, object, psymval, addend, address); }
+ Addendtype addend,
+ Address address)
+ { This::template pcrela<32>(view, object, psymval, addend, address,
+ CHECK_NONE); }
+
+ static inline Reloc_status
+ pcrela32_check(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ Addendtype addend,
+ Address address,
+ Overflow_check check)
+ { return This::template pcrela<32>(view, object, psymval, addend, address,
+ check); }
// Do a simple 64-bit REL relocation with the addend in the section
// contents.
static inline void
- rel64(unsigned char* view, elfcpp::Elf_Xword value)
- { This::template rel<64>(view, value); }
+ rel64(unsigned char* view, Address value)
+ { This::template rel<64>(view, value, CHECK_NONE); }
static inline void
rel64(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval)
- { This::template rel<64>(view, object, psymval); }
+ { This::template rel<64>(view, object, psymval, CHECK_NONE); }
// Do a 64-bit RELA relocation with the addend in the relocation.
static inline void
- rela64(unsigned char* view, elfcpp::Elf_Xword value,
- elfcpp::Elf_Xword addend)
- { This::template rela<64>(view, value, addend); }
+ rela64(unsigned char* view, Address value, Addendtype addend)
+ { This::template rela<64>(view, value, addend, CHECK_NONE); }
static inline void
rela64(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- elfcpp::Elf_Xword addend)
- { This::template rela<64>(view, object, psymval, addend); }
+ Addendtype addend)
+ { This::template rela<64>(view, object, psymval, addend, CHECK_NONE); }
// Do a simple 64-bit PC relative REL relocation with the addend in
// the section contents.
static inline void
- pcrel64(unsigned char* view, elfcpp::Elf_Xword value,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel<64>(view, value, address); }
+ pcrel64(unsigned char* view, Address value, Address address)
+ { This::template pcrel<64>(view, value, address, CHECK_NONE); }
static inline void
pcrel64(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrel<64>(view, object, psymval, address); }
+ Address address)
+ { This::template pcrel<64>(view, object, psymval, address, CHECK_NONE); }
// Do a simple 64-bit PC relative RELA relocation with the addend in
// the relocation.
static inline void
- pcrela64(unsigned char* view, elfcpp::Elf_Xword value,
- elfcpp::Elf_Xword addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrela<64>(view, value, addend, address); }
+ pcrela64(unsigned char* view, Address value, Addendtype addend,
+ Address address)
+ { This::template pcrela<64>(view, value, addend, address, CHECK_NONE); }
static inline void
pcrela64(unsigned char* view,
const Sized_relobj_file<size, big_endian>* object,
const Symbol_value<size>* psymval,
- elfcpp::Elf_Xword addend,
- typename elfcpp::Elf_types<size>::Elf_Addr address)
- { This::template pcrela<64>(view, object, psymval, addend, address); }
+ Addendtype addend,
+ Address address)
+ { This::template pcrela<64>(view, object, psymval, addend, address,
+ CHECK_NONE); }
};
// Integer manipulation functions used by various targets when
@@ -761,6 +1007,18 @@ class Bits
return as_signed > max || as_signed < min;
}
+ // Return true if VAL (stored in a uint32_t) has overflowed an unsigned
+ // value with BITS bits.
+ static inline bool
+ has_unsigned_overflow32(uint32_t val)
+ {
+ gold_assert(bits > 0 && bits <= 32);
+ if (bits == 32)
+ return false;
+ int32_t max = static_cast<int32_t>((1U << bits) - 1);
+ return val > max;
+ }
+
// Return true if VAL (stored in a uint32_t) has overflowed both a
// signed and an unsigned value. E.g.,
// Bits<8>::has_signed_unsigned_overflow32 would check -128 <= VAL <
@@ -815,6 +1073,18 @@ class Bits
return as_signed > max || as_signed < min;
}
+ // Return true if VAL (stored in a uint64_t) has overflowed an unsigned
+ // value with BITS bits.
+ static inline bool
+ has_unsigned_overflow(uint64_t val)
+ {
+ gold_assert(bits > 0 && bits <= 64);
+ if (bits == 64)
+ return false;
+ int64_t max = static_cast<int64_t>((static_cast<uint64_t>(1) << bits) - 1);
+ return val > max;
+ }
+
// Return true if VAL (stored in a uint64_t) has overflowed both a
// signed and an unsigned value. E.g.,
// Bits<8>::has_signed_unsigned_overflow would check -128 <= VAL <
diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index c8e5f9f..96d2b19 100644
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -138,6 +138,11 @@ binary_unittest_SOURCES = binary_unittest.cc
check_PROGRAMS += leb128_unittest
leb128_unittest_SOURCES = leb128_unittest.cc
+check_PROGRAMS += overflow_unittest
+overflow_unittest_SOURCES = overflow_unittest.cc
+overflow_unittest.o: overflow_unittest.cc
+ $(CXXCOMPILE) -O3 -c -o $@ $<
+
endif NATIVE_OR_CROSS_LINKER
# ---------------------------------------------------------------------
diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index 31c9951..c771a42 100644
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -54,7 +54,8 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
$(am__EXEEXT_34) $(am__EXEEXT_35) $(am__EXEEXT_36) \
$(am__EXEEXT_37)
@NATIVE_OR_CROSS_LINKER_TRUE@am__append_1 = object_unittest \
-@NATIVE_OR_CROSS_LINKER_TRUE@ binary_unittest leb128_unittest
+@NATIVE_OR_CROSS_LINKER_TRUE@ binary_unittest leb128_unittest \
+@NATIVE_OR_CROSS_LINKER_TRUE@ overflow_unittest
@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_2 = incremental_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_comdat_test.sh gc_tls_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_orphan_section_test.sh \
@@ -849,7 +850,8 @@ am_libgoldtest_a_OBJECTS = test.$(OBJEXT) testmain.$(OBJEXT) \
libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS)
@NATIVE_OR_CROSS_LINKER_TRUE@am__EXEEXT_1 = object_unittest$(EXEEXT) \
@NATIVE_OR_CROSS_LINKER_TRUE@ binary_unittest$(EXEEXT) \
-@NATIVE_OR_CROSS_LINKER_TRUE@ leb128_unittest$(EXEEXT)
+@NATIVE_OR_CROSS_LINKER_TRUE@ leb128_unittest$(EXEEXT) \
+@NATIVE_OR_CROSS_LINKER_TRUE@ overflow_unittest$(EXEEXT)
@GCC_TRUE@@NATIVE_LINKER_TRUE@am__EXEEXT_2 = icf_virtual_function_folding_test$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ large_symbol_alignment$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ basic_test$(EXEEXT) \
@@ -1584,6 +1586,14 @@ object_unittest_DEPENDENCIES = libgoldtest.a ../libgold.a \
../../libiberty/libiberty.a $(am__DEPENDENCIES_1) \
$(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
$(am__DEPENDENCIES_1)
+@NATIVE_OR_CROSS_LINKER_TRUE@am_overflow_unittest_OBJECTS = \
+@NATIVE_OR_CROSS_LINKER_TRUE@ overflow_unittest.$(OBJEXT)
+overflow_unittest_OBJECTS = $(am_overflow_unittest_OBJECTS)
+overflow_unittest_LDADD = $(LDADD)
+overflow_unittest_DEPENDENCIES = libgoldtest.a ../libgold.a \
+ ../../libiberty/libiberty.a $(am__DEPENDENCIES_1) \
+ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
+ $(am__DEPENDENCIES_1)
permission_test_SOURCES = permission_test.c
permission_test_OBJECTS = permission_test.$(OBJEXT)
permission_test_LDADD = $(LDADD)
@@ -2126,11 +2136,12 @@ SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c basic_pie_test.c \
$(large_symbol_alignment_SOURCES) $(leb128_unittest_SOURCES) \
local_labels_test.c many_sections_r_test.c \
$(many_sections_test_SOURCES) $(object_unittest_SOURCES) \
- permission_test.c $(pie_copyrelocs_test_SOURCES) \
- plugin_test_1.c plugin_test_10.c plugin_test_11.c \
- plugin_test_2.c plugin_test_3.c plugin_test_4.c \
- plugin_test_5.c plugin_test_6.c plugin_test_7.c \
- plugin_test_8.c plugin_test_tls.c $(protected_1_SOURCES) \
+ $(overflow_unittest_SOURCES) permission_test.c \
+ $(pie_copyrelocs_test_SOURCES) plugin_test_1.c \
+ plugin_test_10.c plugin_test_11.c plugin_test_2.c \
+ plugin_test_3.c plugin_test_4.c plugin_test_5.c \
+ plugin_test_6.c plugin_test_7.c plugin_test_8.c \
+ plugin_test_tls.c $(protected_1_SOURCES) \
$(protected_2_SOURCES) $(relro_now_test_SOURCES) \
$(relro_script_test_SOURCES) $(relro_strip_test_SOURCES) \
$(relro_test_SOURCES) $(script_test_1_SOURCES) \
@@ -2496,6 +2507,7 @@ LDADD = libgoldtest.a ../libgold.a ../../libiberty/libiberty.a $(LIBINTL) \
@NATIVE_OR_CROSS_LINKER_TRUE@object_unittest_SOURCES = object_unittest.cc
@NATIVE_OR_CROSS_LINKER_TRUE@binary_unittest_SOURCES = binary_unittest.cc
@NATIVE_OR_CROSS_LINKER_TRUE@leb128_unittest_SOURCES = leb128_unittest.cc
+@NATIVE_OR_CROSS_LINKER_TRUE@overflow_unittest_SOURCES = overflow_unittest.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@large_symbol_alignment_SOURCES = large_symbol_alignment.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@large_symbol_alignment_DEPENDENCIES = gcctestdir/ld
@GCC_TRUE@@NATIVE_LINKER_TRUE@large_symbol_alignment_LDFLAGS = -Bgcctestdir/
@@ -3533,6 +3545,9 @@ many_sections_test$(EXEEXT): $(many_sections_test_OBJECTS) $(many_sections_test_
object_unittest$(EXEEXT): $(object_unittest_OBJECTS) $(object_unittest_DEPENDENCIES)
@rm -f object_unittest$(EXEEXT)
$(CXXLINK) $(object_unittest_OBJECTS) $(object_unittest_LDADD) $(LIBS)
+overflow_unittest$(EXEEXT): $(overflow_unittest_OBJECTS) $(overflow_unittest_DEPENDENCIES)
+ @rm -f overflow_unittest$(EXEEXT)
+ $(CXXLINK) $(overflow_unittest_OBJECTS) $(overflow_unittest_LDADD) $(LIBS)
@GCC_FALSE@permission_test$(EXEEXT): $(permission_test_OBJECTS) $(permission_test_DEPENDENCIES)
@GCC_FALSE@ @rm -f permission_test$(EXEEXT)
@GCC_FALSE@ $(LINK) $(permission_test_OBJECTS) $(permission_test_LDADD) $(LIBS)
@@ -3969,6 +3984,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/many_sections_r_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/many_sections_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/object_unittest.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/overflow_unittest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/permission_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pie_copyrelocs_test-pie_copyrelocs_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/plugin_test_1.Po@am__quote@
@@ -4550,6 +4566,8 @@ binary_unittest.log: binary_unittest$(EXEEXT)
@p='binary_unittest$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
leb128_unittest.log: leb128_unittest$(EXEEXT)
@p='leb128_unittest$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+overflow_unittest.log: overflow_unittest$(EXEEXT)
+ @p='overflow_unittest$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
icf_virtual_function_folding_test.log: icf_virtual_function_folding_test$(EXEEXT)
@p='icf_virtual_function_folding_test$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
large_symbol_alignment.log: large_symbol_alignment$(EXEEXT)
@@ -5027,6 +5045,8 @@ uninstall-am:
@GCC_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@ test -d gcctestdir || mkdir -p gcctestdir
@GCC_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@ rm -f gcctestdir/as
@GCC_TRUE@@NATIVE_OR_CROSS_LINKER_TRUE@ (cd gcctestdir && $(LN_S) $(abs_top_builddir)/../gas/as-new as)
+@NATIVE_OR_CROSS_LINKER_TRUE@overflow_unittest.o: overflow_unittest.cc
+@NATIVE_OR_CROSS_LINKER_TRUE@ $(CXXCOMPILE) -O3 -c -o $@ $<
# ---------------------------------------------------------------------
# These tests test the output of gold (end-to-end tests). In
diff --git a/gold/testsuite/overflow_unittest.cc b/gold/testsuite/overflow_unittest.cc
new file mode 100644
index 0000000..e33e012
--- /dev/null
+++ b/gold/testsuite/overflow_unittest.cc
@@ -0,0 +1,139 @@
+// overflow_unittest.cc -- test functions that check for overflow.
+
+// Copyright (C) 2016 Free Software Foundation, Inc.
+// Written by Cary Coutant <ccoutant@google.com>.
+
+// This file is part of gold.
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+// MA 02110-1301, USA.
+
+#include "gold.h"
+#include "reloc.h"
+
+#include <sys/types.h>
+
+#include "test.h"
+
+namespace gold_testsuite
+{
+
+using namespace gold;
+
+bool
+Overflow_test(Test_report*)
+{
+ CHECK(! Bits<16>::has_unsigned_overflow(0ULL));
+ CHECK(! Bits<16>::has_unsigned_overflow(1ULL));
+ CHECK(! Bits<16>::has_unsigned_overflow(0x7fffULL));
+ CHECK(! Bits<16>::has_unsigned_overflow(0x8000ULL));
+ CHECK(! Bits<16>::has_unsigned_overflow(0x8001ULL));
+ CHECK(! Bits<16>::has_unsigned_overflow(0xffffULL));
+ CHECK(Bits<16>::has_unsigned_overflow(0x10000ULL));
+ CHECK(Bits<16>::has_unsigned_overflow(0x10001ULL));
+ CHECK(Bits<16>::has_unsigned_overflow(~0ULL));
+ CHECK(Bits<16>::has_unsigned_overflow(~0x7fffULL + 1));
+ CHECK(Bits<16>::has_unsigned_overflow(~0x8000ULL + 1));
+ CHECK(Bits<16>::has_unsigned_overflow(~0x8001ULL + 1));
+ CHECK(Bits<16>::has_unsigned_overflow(~0xffffULL + 1));
+ CHECK(Bits<16>::has_unsigned_overflow(~0x10000ULL + 1));
+ CHECK(Bits<16>::has_unsigned_overflow(~0x10001ULL + 1));
+
+ CHECK(! Bits<16>::has_overflow(0ULL));
+ CHECK(! Bits<16>::has_overflow(1ULL));
+ CHECK(! Bits<16>::has_overflow(0x7fffULL));
+ CHECK(Bits<16>::has_overflow(0x8000ULL));
+ CHECK(Bits<16>::has_overflow(0x8001ULL));
+ CHECK(Bits<16>::has_overflow(0xffffULL));
+ CHECK(Bits<16>::has_overflow(0x10000ULL));
+ CHECK(Bits<16>::has_overflow(0x10001ULL));
+ CHECK(! Bits<16>::has_overflow(~0ULL));
+ CHECK(! Bits<16>::has_overflow(~0x7fffULL + 1));
+ CHECK(! Bits<16>::has_overflow(~0x8000ULL + 1));
+ CHECK(Bits<16>::has_overflow(~0x8001ULL + 1));
+ CHECK(Bits<16>::has_overflow(~0xffffULL + 1));
+ CHECK(Bits<16>::has_overflow(~0x10000ULL + 1));
+ CHECK(Bits<16>::has_overflow(~0x10001ULL + 1));
+
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(0ULL));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(1ULL));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(0x7fffULL));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(0x8000ULL));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(0x8001ULL));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(0xffffULL));
+ CHECK(Bits<16>::has_signed_unsigned_overflow64(0x10000ULL));
+ CHECK(Bits<16>::has_signed_unsigned_overflow64(0x10001ULL));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(~0ULL));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(~0x7fffULL + 1));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow64(~0x8000ULL + 1));
+ CHECK(Bits<16>::has_signed_unsigned_overflow64(~0x8001ULL + 1));
+ CHECK(Bits<16>::has_signed_unsigned_overflow64(~0xffffULL + 1));
+ CHECK(Bits<16>::has_signed_unsigned_overflow64(~0x10000ULL + 1));
+ CHECK(Bits<16>::has_signed_unsigned_overflow64(~0x10001ULL + 1));
+
+ CHECK(! Bits<16>::has_unsigned_overflow32(0U));
+ CHECK(! Bits<16>::has_unsigned_overflow32(1U));
+ CHECK(! Bits<16>::has_unsigned_overflow32(0x7fffU));
+ CHECK(! Bits<16>::has_unsigned_overflow32(0x8000U));
+ CHECK(! Bits<16>::has_unsigned_overflow32(0x8001U));
+ CHECK(! Bits<16>::has_unsigned_overflow32(0xffffU));
+ CHECK(Bits<16>::has_unsigned_overflow32(0x10000U));
+ CHECK(Bits<16>::has_unsigned_overflow32(0x10001U));
+ CHECK(Bits<16>::has_unsigned_overflow32(~0U));
+ CHECK(Bits<16>::has_unsigned_overflow32(~0x7fffU + 1));
+ CHECK(Bits<16>::has_unsigned_overflow32(~0x8000U + 1));
+ CHECK(Bits<16>::has_unsigned_overflow32(~0x8001U + 1));
+ CHECK(Bits<16>::has_unsigned_overflow32(~0xffffU + 1));
+ CHECK(Bits<16>::has_unsigned_overflow32(~0x10000U + 1));
+ CHECK(Bits<16>::has_unsigned_overflow32(~0x10001U + 1));
+
+ CHECK(! Bits<16>::has_overflow32(0U));
+ CHECK(! Bits<16>::has_overflow32(1U));
+ CHECK(! Bits<16>::has_overflow32(0x7fffU));
+ CHECK(Bits<16>::has_overflow32(0x8000U));
+ CHECK(Bits<16>::has_overflow32(0x8001U));
+ CHECK(Bits<16>::has_overflow32(0xffffU));
+ CHECK(Bits<16>::has_overflow32(0x10000U));
+ CHECK(Bits<16>::has_overflow32(0x10001U));
+ CHECK(! Bits<16>::has_overflow32(~0U));
+ CHECK(! Bits<16>::has_overflow32(~0x7fffU + 1));
+ CHECK(! Bits<16>::has_overflow32(~0x8000U + 1));
+ CHECK(Bits<16>::has_overflow32(~0x8001U + 1));
+ CHECK(Bits<16>::has_overflow32(~0xffffU + 1));
+ CHECK(Bits<16>::has_overflow32(~0x10000U + 1));
+ CHECK(Bits<16>::has_overflow32(~0x10001U + 1));
+
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(0U));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(1U));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(0x7fffU));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(0x8000U));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(0x8001U));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(0xffffU));
+ CHECK(Bits<16>::has_signed_unsigned_overflow32(0x10000U));
+ CHECK(Bits<16>::has_signed_unsigned_overflow32(0x10001U));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(~0U));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(~0x7fffU + 1));
+ CHECK(! Bits<16>::has_signed_unsigned_overflow32(~0x8000U + 1));
+ CHECK(Bits<16>::has_signed_unsigned_overflow32(~0x8001U + 1));
+ CHECK(Bits<16>::has_signed_unsigned_overflow32(~0xffffU + 1));
+ CHECK(Bits<16>::has_signed_unsigned_overflow32(~0x10000U + 1));
+ CHECK(Bits<16>::has_signed_unsigned_overflow32(~0x10001U + 1));
+
+ return true;
+}
+
+Register_test overflow_register("Overflow", Overflow_test);
+
+} // End namespace gold_testsuite.