diff options
author | Arne Schwabe <arne@rfc2549.org> | 2015-04-15 00:17:26 +0200 |
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committer | Arne Schwabe <arne@rfc2549.org> | 2015-04-15 00:20:23 +0200 |
commit | c3ae4aaac9f0b168aed063d3e86c5196608eaba1 (patch) | |
tree | 1a18e7d8751d4dd3682d82d12c8441b335112984 /main/openssl/crypto/armcap.c | |
parent | 5e42114d22faefe7c272b1b498fdf5640da494c7 (diff) |
Move more to git, add submodules, fix build script, change hgignore to gitignore
Diffstat (limited to 'main/openssl/crypto/armcap.c')
m--------- | main/openssl | 0 | ||||
-rw-r--r-- | main/openssl/crypto/armcap.c | 165 |
2 files changed, 0 insertions, 165 deletions
diff --git a/main/openssl b/main/openssl new file mode 160000 +Subproject 4d377a9ce111930d8a8f06dc0e94a892a7f6c51 diff --git a/main/openssl/crypto/armcap.c b/main/openssl/crypto/armcap.c deleted file mode 100644 index 59b74948..00000000 --- a/main/openssl/crypto/armcap.c +++ /dev/null @@ -1,165 +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); -void _armv8_aes_probe(void); -void _armv8_sha1_probe(void); -void _armv8_sha256_probe(void); -void _armv8_pmull_probe(void); -unsigned long _armv7_tick(void); - -unsigned long OPENSSL_rdtsc(void) - { - if (OPENSSL_armcap_P & ARMV7_TICK) - return _armv7_tick(); - else - return 0; - } - -/* - * Use a weak reference to getauxval() so we can use it if it is available but - * don't break the build if it is not. - */ -#if defined(__GNUC__) && __GNUC__>=2 -void OPENSSL_cpuid_setup(void) __attribute__((constructor)); -extern unsigned long getauxval(unsigned long type) __attribute__((weak)); -#else -static unsigned long (*getauxval)(unsigned long) = NULL; -#endif - -/* - * ARM puts the the feature bits for Crypto Extensions in AT_HWCAP2, whereas - * AArch64 used AT_HWCAP. - */ -#if defined(__arm__) || defined (__arm) -# define HWCAP 16 /* AT_HWCAP */ -# define HWCAP_NEON (1 << 12) - -# define HWCAP_CE 26 /* AT_HWCAP2 */ -# define HWCAP_CE_AES (1 << 0) -# define HWCAP_CE_PMULL (1 << 1) -# define HWCAP_CE_SHA1 (1 << 2) -# define HWCAP_CE_SHA256 (1 << 3) -#elif defined(__aarch64__) -# define HWCAP 16 /* AT_HWCAP */ -# define HWCAP_NEON (1 << 1) - -# define HWCAP_CE HWCAP -# define HWCAP_CE_AES (1 << 3) -# define HWCAP_CE_PMULL (1 << 4) -# define HWCAP_CE_SHA1 (1 << 5) -# define HWCAP_CE_SHA256 (1 << 6) -#endif - -#ifdef ANDROID -// Works around a bug where Android versions up to and including L don't -// properly restore the signal mask when asked. -#define sigsetjmp(env,savesigs) \ - (sigprocmask(SIG_SETMASK,&ill_act.sa_mask,NULL), \ - sigsetjmp(env,savesigs)) -#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=(unsigned int)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 (getauxval != NULL) - { - if (getauxval(HWCAP) & HWCAP_NEON) - { - unsigned long hwcap = getauxval(HWCAP_CE); - - OPENSSL_armcap_P |= ARMV7_NEON; - - if (hwcap & HWCAP_CE_AES) - OPENSSL_armcap_P |= ARMV8_AES; - - if (hwcap & HWCAP_CE_PMULL) - OPENSSL_armcap_P |= ARMV8_PMULL; - - if (hwcap & HWCAP_CE_SHA1) - OPENSSL_armcap_P |= ARMV8_SHA1; - - if (hwcap & HWCAP_CE_SHA256) - OPENSSL_armcap_P |= ARMV8_SHA256; - } - } - else if (sigsetjmp(ill_jmp,1) == 0) - { - _armv7_neon_probe(); - OPENSSL_armcap_P |= ARMV7_NEON; - if (sigsetjmp(ill_jmp,1) == 0) - { - _armv8_pmull_probe(); - OPENSSL_armcap_P |= ARMV8_PMULL|ARMV8_AES; - } - else if (sigsetjmp(ill_jmp,1) == 0) - { - _armv8_aes_probe(); - OPENSSL_armcap_P |= ARMV8_AES; - } - if (sigsetjmp(ill_jmp,1) == 0) - { - _armv8_sha1_probe(); - OPENSSL_armcap_P |= ARMV8_SHA1; - } - if (sigsetjmp(ill_jmp,1) == 0) - { - _armv8_sha256_probe(); - OPENSSL_armcap_P |= ARMV8_SHA256; - } - } - if (sigsetjmp(ill_jmp,1) == 0) - { - _armv7_tick(); - OPENSSL_armcap_P |= ARMV7_TICK; - } - - sigaction (SIGILL,&ill_oact,NULL); - sigprocmask(SIG_SETMASK,&oset,NULL); - } |