diff options
Diffstat (limited to 'crypto/cryptlib.c')
| -rw-r--r-- | crypto/cryptlib.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/crypto/cryptlib.c b/crypto/cryptlib.c index b180aebce9..79c54b920e 100644 --- a/crypto/cryptlib.c +++ b/crypto/cryptlib.c @@ -539,6 +539,38 @@ const char *CRYPTO_get_lock_name(int type) return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS)); } +#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || defined(__INTEL__) + +unsigned long OPENSSL_ia32cap=0; +unsigned long *OPENSSL_ia32cap_loc() { return &OPENSSL_ia32cap; } + +#if !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY) +#define OPENSSL_CPUID_SETUP +void OPENSSL_cpuid_setup() +{ static int trigger=0; + unsigned long OPENSSL_ia32_cpuid(); + char *env; + + if (trigger) return; + + trigger=1; + if ((env=getenv("OPENSSL_ia32cap"))) + OPENSSL_ia32cap = strtoul(env,NULL,0)|(1<<10); + else + OPENSSL_ia32cap = OPENSSL_ia32_cpuid()|(1<<10); + /* + * |(1<<10) sets a reserved bit to signal that variable + * was initialized already... This is to avoid interference + * with cpuid snippets in ELF .init segment. + */ +} +#endif + +#endif +#if !defined(OPENSSL_CPUID_SETUP) +void OPENSSL_cpuid_setup() {} +#endif + #ifdef _DLL #ifdef OPENSSL_SYS_WIN32 @@ -551,6 +583,7 @@ BOOL WINAPI DLLEntryPoint(HINSTANCE hinstDLL, DWORD fdwReason, switch(fdwReason) { case DLL_PROCESS_ATTACH: + OPENSSL_cpuid_setup(); break; case DLL_THREAD_ATTACH: break; |