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move definitions of XASM_LINK() from wolfcrypt/src/aes.c, wolfcrypt/src/asm.c, and wolfcrypt/src/cpuid.c, to wolfssl/wolfcrypt/types.h, and use __asm__() instead of asm() if __GNUC__, for compatibility with -std=c99.

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This commit is contained in:
Daniel Pouzzner 2023-05-31 15:48:52 -05:00
parent 64c9026c77
commit 59a7c0d7e4
4 changed files with 16 additions and 20 deletions
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8
wolfcrypt/src/aes.c
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@ -709,14 +709,6 @@ block cipher mechanism that uses n-bit binary string parameter key with 128-bits
#define AESNI_ALIGN 16
#endif
#ifdef _MSC_VER
#define XASM_LINK(f)
#elif defined(__APPLE__)
#define XASM_LINK(f) asm("_" f)
#else
#define XASM_LINK(f) asm(f)
#endif /* _MSC_VER */
static int checkAESNI = 0;
static int haveAESNI = 0;
static word32 intel_flags = 0;

6
wolfcrypt/src/asm.c
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@ -46,15 +46,9 @@
__asm__ __volatile__ ("cpuid":\
"=a" (reg[0]), "=b" (reg[1]), "=c" (reg[2]), "=d" (reg[3]) :\
"a" (leaf), "c"(sub));
#define XASM_LINK(f) asm(f)
#else
#include <intrin.h>
#define cpuid(a,b,c) __cpuidex((int*)a,b,c)
#define XASM_LINK(f)
#endif /* _MSC_VER */
#define EAX 0

4
wolfcrypt/src/cpuid.c
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@ -43,14 +43,10 @@
__asm__ __volatile__ ("cpuid":\
"=a" ((reg)[0]), "=b" ((reg)[1]), "=c" ((reg)[2]), "=d" ((reg)[3]) :\
"a" (leaf), "c"(sub));
#define XASM_LINK(f) asm(f)
#else
#include <intrin.h>
#define cpuid(a,b,c) __cpuidex((int*)a,b,c)
#define XASM_LINK(f)
#endif /* _MSC_VER */
#define EAX 0

18
wolfssl/wolfcrypt/types.h
View File

@ -1180,8 +1180,22 @@ typedef struct w64wrapper {
/* invalid device id */
#define INVALID_DEVID (-2)
/* AESNI requires alignment and ARMASM gains some performance from it
* Xilinx RSA operations require alignment */
#ifdef XASM_LINK
/* keep user-supplied definition */
#elif defined(_MSC_VER)
#define XASM_LINK(f)
#elif defined(__APPLE__)
#define XASM_LINK(f) asm("_" f)
#elif defined(__GNUC__)
/* use alternate keyword for compatibility with -std=c99 */
#define XASM_LINK(f) __asm__(f)
#else
#define XASM_LINK(f) asm(f)
#endif
/* AESNI requires alignment and ARMASM gains some performance from it.
* Xilinx RSA operations require alignment.
*/
#if defined(WOLFSSL_AESNI) || defined(WOLFSSL_ARMASM) || \
defined(USE_INTEL_SPEEDUP) || defined(WOLFSSL_AFALG_XILINX) || \
defined(WOLFSSL_XILINX)