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File openssl-1.0.1e-arm-use-elf-auxv-caps.patch of Package openssl
diff --git a/crypto/armcap.c b/crypto/armcap.c index 5258d2f..efb4009 100644 --- a/crypto/armcap.c +++ b/crypto/armcap.c @@ -9,11 +9,6 @@ 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... @@ -29,24 +24,26 @@ unsigned int OPENSSL_rdtsc(void) return 0; } -#if defined(__GNUC__) && __GNUC__>=2 -void OPENSSL_cpuid_setup(void) __attribute__((constructor)); -#endif -void OPENSSL_cpuid_setup(void) +#if defined(__GLIBC__) && __GLIBC__>=2 && __GLIBC_MINOR__>=16 +#include <sys/auxv.h> + +void OPENSSL_cpuid_find(void) + { + unsigned long hwcap = getauxval(AT_HWCAP); + char *plat = (char *)getauxval(AT_PLATFORM); + + OPENSSL_armcap_P |= hwcap & HWCAP_ARM_NEON ? ARMV7_NEON : 0; + OPENSSL_armcap_P |= plat ? (plat[1] == '7' ? ARMV7_TICK : 0) : 0; + } +#else +static sigset_t all_masked; +static sigjmp_buf ill_jmp; +static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); } + +void OPENSSL_cpuid_find(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); @@ -55,8 +52,6 @@ void OPENSSL_cpuid_setup(void) 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; @@ -78,3 +73,25 @@ void OPENSSL_cpuid_setup(void) sigaction (SIGILL,&ill_oact,NULL); sigprocmask(SIG_SETMASK,&oset,NULL); } +#endif + +#if defined(__GNUC__) && __GNUC__>=2 +void OPENSSL_cpuid_setup(void) __attribute__((constructor)); +#endif +void OPENSSL_cpuid_setup(void) + { + char *e; + static int trigger=0; + + if (trigger) return; + trigger=1; + + if ((e=getenv("OPENSSL_armcap"))) + { + OPENSSL_armcap_P=strtoul(e,NULL,0); + return; + } + + OPENSSL_armcap_P = 0; + OPENSSL_cpuid_find(); + }