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authorcvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
committercvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
commiteb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch)
treeedb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libcrypto/arch/arm/armcap.c
parent247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff)
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This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
Diffstat (limited to 'src/lib/libcrypto/arch/arm/armcap.c')
-rw-r--r--src/lib/libcrypto/arch/arm/armcap.c88
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
11unsigned int OPENSSL_armcap_P;
12
13#if __ARM_ARCH__ >= 7
14static sigset_t all_masked;
15
16static sigjmp_buf ill_jmp;
17
18static void
19ill_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 */
28void _armv7_neon_probe(void);
29void _armv8_aes_probe(void);
30void _armv8_sha1_probe(void);
31void _armv8_sha256_probe(void);
32void _armv8_pmull_probe(void);
33#endif
34
35void
36OPENSSL_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}