diff options
Diffstat (limited to 'drivers/builtin_openssl/crypto/armcap.c')
-rw-r--r-- | drivers/builtin_openssl/crypto/armcap.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/drivers/builtin_openssl/crypto/armcap.c b/drivers/builtin_openssl/crypto/armcap.c deleted file mode 100644 index 9abaf396e5..0000000000 --- a/drivers/builtin_openssl/crypto/armcap.c +++ /dev/null @@ -1,80 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <setjmp.h> -#include <signal.h> -#include <crypto.h> - -#include "arm_arch.h" - -unsigned int OPENSSL_armcap_P; - -static sigset_t all_masked; - -static sigjmp_buf ill_jmp; -static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); } - -/* - * Following subroutines could have been inlined, but it's not all - * ARM compilers support inline assembler... - */ -void _armv7_neon_probe(void); -unsigned int _armv7_tick(void); - -unsigned int OPENSSL_rdtsc(void) - { - if (OPENSSL_armcap_P & ARMV7_TICK) - return _armv7_tick(); - else - return 0; - } - -#if defined(__GNUC__) && __GNUC__>=2 -void OPENSSL_cpuid_setup(void) __attribute__((constructor)); -#endif -void OPENSSL_cpuid_setup(void) - { - char *e; - struct sigaction ill_oact,ill_act; - sigset_t oset; - static int trigger=0; - - if (trigger) return; - trigger=1; - - if ((e=getenv("OPENSSL_armcap"))) - { - OPENSSL_armcap_P=strtoul(e,NULL,0); - return; - } - - sigfillset(&all_masked); - sigdelset(&all_masked,SIGILL); - sigdelset(&all_masked,SIGTRAP); - sigdelset(&all_masked,SIGFPE); - sigdelset(&all_masked,SIGBUS); - sigdelset(&all_masked,SIGSEGV); - - OPENSSL_armcap_P = 0; - - memset(&ill_act,0,sizeof(ill_act)); - ill_act.sa_handler = ill_handler; - ill_act.sa_mask = all_masked; - - sigprocmask(SIG_SETMASK,&ill_act.sa_mask,&oset); - sigaction(SIGILL,&ill_act,&ill_oact); - - if (sigsetjmp(ill_jmp,1) == 0) - { - _armv7_neon_probe(); - OPENSSL_armcap_P |= ARMV7_NEON; - } - if (sigsetjmp(ill_jmp,1) == 0) - { - _armv7_tick(); - OPENSSL_armcap_P |= ARMV7_TICK; - } - - sigaction (SIGILL,&ill_oact,NULL); - sigprocmask(SIG_SETMASK,&oset,NULL); - } |