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Diffstat (limited to 'src/lib/libcrypto/armcap.c')
-rw-r--r--src/lib/libcrypto/armcap.c72
1 files changed, 0 insertions, 72 deletions
diff --git a/src/lib/libcrypto/armcap.c b/src/lib/libcrypto/armcap.c
deleted file mode 100644
index 7ee94d48b1..0000000000
--- a/src/lib/libcrypto/armcap.c
+++ /dev/null
@@ -1,72 +0,0 @@
1/* $OpenBSD: armcap.c,v 1.6 2014/06/20 21:00:46 deraadt Exp $ */
2#include <stdio.h>
3#include <stdlib.h>
4#include <string.h>
5#include <setjmp.h>
6#include <signal.h>
7#include <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 static void ill_handler (int sig) { siglongjmp(ill_jmp, sig);
18}
19
20/*
21 * Following subroutines could have been inlined, but it's not all
22 * ARM compilers support inline assembler...
23 */
24void _armv7_neon_probe(void);
25#endif
26
27#if defined(__GNUC__) && __GNUC__>=2
28void OPENSSL_cpuid_setup(void) __attribute__((constructor));
29#endif
30
31void
32OPENSSL_cpuid_setup(void)
33{
34#ifndef __OpenBSD__
35 char *e;
36#endif
37#if __ARM_ARCH__ >= 7
38 struct sigaction ill_oact, ill_act;
39 sigset_t oset;
40#endif
41 static int trigger = 0;
42
43 if (trigger)
44 return;
45 trigger = 1;
46
47 OPENSSL_armcap_P = 0;
48
49#if __ARM_ARCH__ >= 7
50 sigfillset(&all_masked);
51 sigdelset(&all_masked, SIGILL);
52 sigdelset(&all_masked, SIGTRAP);
53 sigdelset(&all_masked, SIGFPE);
54 sigdelset(&all_masked, SIGBUS);
55 sigdelset(&all_masked, SIGSEGV);
56
57 memset(&ill_act, 0, sizeof(ill_act));
58 ill_act.sa_handler = ill_handler;
59 ill_act.sa_mask = all_masked;
60
61 sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
62 sigaction(SIGILL, &ill_act, &ill_oact);
63
64 if (sigsetjmp(ill_jmp, 1) == 0) {
65 _armv7_neon_probe();
66 OPENSSL_armcap_P |= ARMV7_NEON;
67 }
68
69 sigaction (SIGILL, &ill_oact, NULL);
70 sigprocmask(SIG_SETMASK, &oset, NULL);
71#endif
72}