This check-in also enables the 64-bit RDRAND routines for X32. The changes were with held until they could be tested. The testing occurred with Issue 395
Wrap DetectArmFeatures and DetectX86Features in InitializeCpu class
Use init_priority for InitializeCpu
Remove HAVE_GCC_CONSTRUCTOR1 and HAVE_GCC_CONSTRUCTOR0
Use init_seg(<name>) on Windows and explicitly insert at XCU segment
Simplify logic for HAVE_GAS
Remove special recipies for MACPORTS_GCC_COMPILER
Move C++ static initializers into anonymous namespace when possible
Add default NullNameValuePairs ctor for Clang
When MSVC init_seg or GCC init_priority is available, we don't need to use the Singleton. We only need to create a file scope class variable and place it in the segment for MSVC or provide the attribute for GCC.
An additional upside is we cleared all the memory leaks that used to be reported by MSVC for debug builds.
StringWiden converts a narrow C-style string to a wide string. It serves the opposite role of StringNarrow function. The function is useful on Windows platforms where the OS favors wide functions with the UTF-16 character set. For example, the Data Proction API (DPAPI) allows a description, but its a wide character C-string. There is no narrwo version of the API.
Port rdrand.S to Solaris
Port rdrand.S to X32
The X32 port is responsible for the loop unwinding. The unwind generates a 32-byte block (X64 and X32) or 16-byte block (X86). On X32, it increases throughut by 100% (doubles it). On X86 and X64, throughput increases by about 6%. Anything over 4 machine words slows things down.
Port rdrand.S to Cygwin and OS X
Add DISABLE_NATIVE_ARCH to CmakefileList and GNUmakefile. It supresses the addition of -march=native. DISABLE_NATIVE_ARCH replaces DISABLE_CXXFLAGS_OPTIMIZATIONS in CmakefileList (the latter is now deprecated).
Add benchmarks for SHA1 and SHA256 variants
Hash_DRBG sped-up by about 2 MiB/s by using word128 and word64 in the initial update loop. It did not benefit other loops
HMAC_DRBG sped-up by about 5 MiB/s by reworking variables, access and loop control
Move HTML header and footer into benchmark functions
Switch to <cmath> and standard math routines
Switch to <ctime> and standard clock and time routines
Move static variable^Cinto anonymous namespace
Add TimeToString function for printing start and end times
Jeffrey Walton
denisbider