diff options
Diffstat (limited to 'src/lib/libcrypto/arch/arm/armcap.c')
| -rw-r--r-- | src/lib/libcrypto/arch/arm/armcap.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/src/lib/libcrypto/arch/arm/armcap.c b/src/lib/libcrypto/arch/arm/armcap.c deleted file mode 100644 index 0238195397..0000000000 --- a/src/lib/libcrypto/arch/arm/armcap.c +++ /dev/null | |||
| @@ -1,88 +0,0 @@ | |||
| 1 | /* $OpenBSD: armcap.c,v 1.3 2024/08/29 03:30:05 deraadt Exp $ */ | ||
| 2 | #include <stdio.h> | ||
| 3 | #include <stdlib.h> | ||
| 4 | #include <string.h> | ||
| 5 | #include <setjmp.h> | ||
| 6 | #include <signal.h> | ||
| 7 | #include <openssl/crypto.h> | ||
| 8 | |||
| 9 | #include "arm_arch.h" | ||
| 10 | |||
| 11 | unsigned int OPENSSL_armcap_P; | ||
| 12 | |||
| 13 | #if __ARM_ARCH__ >= 7 | ||
| 14 | static sigset_t all_masked; | ||
| 15 | |||
| 16 | static sigjmp_buf ill_jmp; | ||
| 17 | |||
| 18 | static void | ||
| 19 | ill_handler(int sig) | ||
| 20 | { | ||
| 21 | siglongjmp(ill_jmp, sig); | ||
| 22 | } | ||
| 23 | |||
| 24 | /* | ||
| 25 | * Following subroutines could have been inlined, but it's not all | ||
| 26 | * ARM compilers support inline assembler... | ||
| 27 | */ | ||
| 28 | void _armv7_neon_probe(void); | ||
| 29 | void _armv8_aes_probe(void); | ||
| 30 | void _armv8_sha1_probe(void); | ||
| 31 | void _armv8_sha256_probe(void); | ||
| 32 | void _armv8_pmull_probe(void); | ||
| 33 | #endif | ||
| 34 | |||
| 35 | void | ||
| 36 | OPENSSL_cpuid_setup(void) | ||
| 37 | { | ||
| 38 | #if __ARM_ARCH__ >= 7 | ||
| 39 | struct sigaction ill_oact, ill_act; | ||
| 40 | sigset_t oset; | ||
| 41 | #endif | ||
| 42 | static int trigger = 0; | ||
| 43 | |||
| 44 | if (trigger) | ||
| 45 | return; | ||
| 46 | trigger = 1; | ||
| 47 | |||
| 48 | OPENSSL_armcap_P = 0; | ||
| 49 | |||
| 50 | #if __ARM_ARCH__ >= 7 | ||
| 51 | sigfillset(&all_masked); | ||
| 52 | sigdelset(&all_masked, SIGILL); | ||
| 53 | sigdelset(&all_masked, SIGTRAP); | ||
| 54 | sigdelset(&all_masked, SIGFPE); | ||
| 55 | sigdelset(&all_masked, SIGBUS); | ||
| 56 | sigdelset(&all_masked, SIGSEGV); | ||
| 57 | |||
| 58 | memset(&ill_act, 0, sizeof(ill_act)); | ||
| 59 | ill_act.sa_handler = ill_handler; | ||
| 60 | ill_act.sa_mask = all_masked; | ||
| 61 | |||
| 62 | sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset); | ||
| 63 | sigaction(SIGILL, &ill_act, &ill_oact); | ||
| 64 | |||
| 65 | if (sigsetjmp(ill_jmp, 1) == 0) { | ||
| 66 | _armv7_neon_probe(); | ||
| 67 | OPENSSL_armcap_P |= ARMV7_NEON; | ||
| 68 | if (sigsetjmp(ill_jmp, 1) == 0) { | ||
| 69 | _armv8_pmull_probe(); | ||
| 70 | OPENSSL_armcap_P |= ARMV8_PMULL | ARMV8_AES; | ||
| 71 | } else if (sigsetjmp(ill_jmp, 1) == 0) { | ||
| 72 | _armv8_aes_probe(); | ||
| 73 | OPENSSL_armcap_P |= ARMV8_AES; | ||
| 74 | } | ||
| 75 | if (sigsetjmp(ill_jmp, 1) == 0) { | ||
| 76 | _armv8_sha1_probe(); | ||
| 77 | OPENSSL_armcap_P |= ARMV8_SHA1; | ||
| 78 | } | ||
| 79 | if (sigsetjmp(ill_jmp, 1) == 0) { | ||
| 80 | _armv8_sha256_probe(); | ||
| 81 | OPENSSL_armcap_P |= ARMV8_SHA256; | ||
| 82 | } | ||
| 83 | } | ||
| 84 | |||
| 85 | sigaction (SIGILL, &ill_oact, NULL); | ||
| 86 | sigprocmask(SIG_SETMASK, &oset, NULL); | ||
| 87 | #endif | ||
| 88 | } | ||
