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Cutover to fastcall for MASM and X86 (Issue 387) 

Fix "target specific option mismatch" under GCC 4.6
pull/354/merge
Jeffrey Walton 2017-03-07 12:57:47 -05:00
parent 19df272d90
commit d3bcbc71da
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GPG Key ID: B36AB348921B1838
2 changed files with 36 additions and 41 deletions
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41
rdrand.asm
View File

@ -28,9 +28,9 @@ PUBLIC MASM_RDSEED_GenerateBlock
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; C/C++ Function prototypes
;; C/C++ Function prototypes (both are fastcall)
;; X86:
;; extern "C" void MASM_RDRAND_GenerateBlock(byte* ptr, size_t size);
;; extern "C" void __fastcall MASM_RDRAND_GenerateBlock(byte* ptr, size_t size);
;; X64:
;; extern "C" void __fastcall MASM_RDRAND_GenerateBlock(byte* ptr, size_t size);
@ -42,6 +42,9 @@ IFDEF _M_X86 ;; Set via the command line
.486
.MODEL FLAT
ALIAS <@MASM_RDRAND_GenerateBlock@8> = <MASM_RDRAND_GenerateBlock>
ALIAS <@MASM_RDSEED_GenerateBlock@8> = <MASM_RDSEED_GenerateBlock>
ENDIF
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@ -51,25 +54,19 @@ IFDEF _M_X86 ;; Set via the command line
.CODE
ALIGN 8
OPTION LANGUAGE:C
OPTION PROLOGUE:NONE
OPTION EPILOGUE:NONE
;; Caller pushes on stack following CDECL (right to left)
;; arg1: byte* buffer
;; arg2: size_t bsize
;; No need for Load_Arguments due to fastcall
;; ECX (in): arg1, byte* buffer
;; EDX (in): arg2, size_t bsize
MASM_RDRAND_GenerateBlock PROC ;; arg1:DWORD, arg2:DWORD
MWSIZE EQU 04h ;; machine word size
buffer EQU edi
buffer EQU ecx
bsize EQU edx
Load_Arguments:
mov buffer, DWORD PTR [esp+04h] ;; arg1
mov bsize, DWORD PTR [esp+08h] ;; arg2
;; Top of While loop
GenerateBlock_Top:
@ -148,6 +145,7 @@ ALIGN 16
OPTION PROLOGUE:NONE
OPTION EPILOGUE:NONE
;; No need for Load_Arguments due to fastcall
;; RCX (in): arg1, byte* buffer
;; RDX (in): arg2, size_t bsize
@ -157,8 +155,6 @@ MASM_RDRAND_GenerateBlock PROC
buffer EQU rcx
bsize EQU rdx
;; No need for Load_Arguments due to fastcall
;; Top of While loop
GenerateBlock_Top:
@ -244,25 +240,19 @@ IFDEF _M_X86 ;; Set via the command line
.CODE
ALIGN 8
OPTION LANGUAGE:C
OPTION PROLOGUE:NONE
OPTION EPILOGUE:NONE
;; Caller pushes on stack following CDECL (right to left)
;; arg1: byte* buffer
;; arg2: size_t bsize
;; No need for Load_Arguments due to fastcall
;; ECX (in): arg1, byte* buffer
;; EDX (in): arg2, size_t bsize
MASM_RDSEED_GenerateBlock PROC ;; arg1:DWORD, arg2:DWORD
MWSIZE EQU 04h ;; machine word size
buffer EQU edi
buffer EQU ecx
bsize EQU edx
Load_Arguments:
mov buffer, DWORD PTR [esp+04h] ;; arg1
mov bsize, DWORD PTR [esp+08h] ;; arg2
;; Top of While loop
GenerateBlock_Top:
@ -341,6 +331,7 @@ ALIGN 16
OPTION PROLOGUE:NONE
OPTION EPILOGUE:NONE
;; No need for Load_Arguments due to fastcall
;; RCX (in): arg1, byte* buffer
;; RDX (in): arg2, size_t bsize
@ -350,8 +341,6 @@ MASM_RDSEED_GenerateBlock PROC ;; arg1:QWORD,arg2:QWORD
buffer EQU rcx
bsize EQU rdx
;; No need for Load_Arguments due to fastcall
;; Top of While loop
GenerateBlock_Top:

22
rdrand.cpp
View File

@ -43,20 +43,26 @@
#if defined(CRYPTOPP_CPUID_AVAILABLE)
# if defined(CRYPTOPP_MSC_VERSION)
# if (CRYPTOPP_MSC_VERSION >= 1700)
// # define MASM_RDRAND_ASM_AVAILABLE 1
# define ALL_RDRAND_INTRIN_AVAILABLE 1
# else
# define MASM_RDRAND_ASM_AVAILABLE 1
# endif
# if (CRYPTOPP_MSC_VERSION >= 1800)
// # define MASM_RDSEED_ASM_AVAILABLE 1
# define ALL_RDSEED_INTRIN_AVAILABLE 1
# else
# define MASM_RDSEED_ASM_AVAILABLE 1
# endif
# elif defined(CRYPTOPP_LLVM_CLANG_VERSION) || defined(CRYPTOPP_APPLE_CLANG_VERSION)
# if defined(__RDRND__)
# define ALL_RDRAND_INTRIN_AVAILABLE 1
# else
# define GCC_RDRAND_ASM_AVAILABLE 1
# endif
# if defined(__RDSEED__)
# define ALL_RDSEED_INTRIN_AVAILABLE 1
# else
# define GCC_RDSEED_ASM_AVAILABLE 1
# endif
# elif defined(__SUNPRO_CC)
# if defined(__RDRND__) && (__SUNPRO_CC >= 0x5130)
# define ALL_RDRAND_INTRIN_AVAILABLE 1
@ -69,12 +75,12 @@
# define GCC_RDSEED_ASM_AVAILABLE 1
# endif
# elif defined(CRYPTOPP_GCC_VERSION)
# if defined(__RDRND__) || (CRYPTOPP_GCC_VERSION >= 40600)
# if defined(__RDRND__) && (CRYPTOPP_GCC_VERSION >= 40600)
# define ALL_RDRAND_INTRIN_AVAILABLE 1
# else
# define GCC_RDRAND_ASM_AVAILABLE 1
# endif
# if defined(__RDSEED__) || (CRYPTOPP_GCC_VERSION >= 40600)
# if defined(__RDSEED__) && (CRYPTOPP_GCC_VERSION >= 40600)
# define ALL_RDSEED_INTRIN_AVAILABLE 1
# else
# define GCC_RDSEED_ASM_AVAILABLE 1
@ -102,7 +108,7 @@
extern "C" void CRYPTOPP_FASTCALL MASM_RDRAND_GenerateBlock(byte*, size_t);
// # pragma comment(lib, "rdrand-x64.lib")
# else
extern "C" void MASM_RDRAND_GenerateBlock(byte*, size_t);
extern "C" void CRYPTOPP_FASTCALL MASM_RDRAND_GenerateBlock(byte*, size_t);
// # pragma comment(lib, "rdrand-x86.lib")
# endif
#endif
@ -112,7 +118,7 @@ extern "C" void MASM_RDRAND_GenerateBlock(byte*, size_t);
extern "C" void CRYPTOPP_FASTCALL MASM_RDSEED_GenerateBlock(byte*, size_t);
// # pragma comment(lib, "rdrand-x64.lib")
# else
extern "C" void MASM_RDSEED_GenerateBlock(byte*, size_t);
extern "C" void CRYPTOPP_FASTCALL MASM_RDSEED_GenerateBlock(byte*, size_t);
// # pragma comment(lib, "rdrand-x86.lib")
# endif
#endif
@ -129,8 +135,8 @@ extern "C" void NASM_RDSEED_GenerateBlock(byte*, size_t);
/////////////////////////////////////////////////////////////////////
ANONYMOUS_NAMESPACE_BEGIN
// GCC, MSVC and SunCC has optimized calls to RDRAND away. We experieced it
// under GCC and MSVC. Other have reported it for SunCC. This attempts
// GCC, MSVC and SunCC have optimized calls to RDRAND away. We experieced
// it under GCC and MSVC. Other have reported it for SunCC. This attempts
// to tame the optimizer even though it abuses the volatile keyword.
static volatile int s_unused;
ANONYMOUS_NAMESPACE_END