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authorjsing <>2024-10-19 11:55:32 +0000
committerjsing <>2024-10-19 11:55:32 +0000
commitd2377970fef7d1c8e41cbb1d93b5e43185f032fc (patch)
treee262e353cde0d9c0bc08c5d4c53fe7fcd20971b3 /src/lib/libcrypto/sparcv9cap.c
parent72bb07c05c2f77944ec97d3b037b16ca08be47ae (diff)
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Remove unused sparc CPU capability detection code.
This has been unused for a long time - it can be found in the attic if someone wants to clean it up and enable it in the future. ok tb@
Diffstat (limited to 'src/lib/libcrypto/sparcv9cap.c')
-rw-r--r--src/lib/libcrypto/sparcv9cap.c98
1 files changed, 0 insertions, 98 deletions
diff --git a/src/lib/libcrypto/sparcv9cap.c b/src/lib/libcrypto/sparcv9cap.c
deleted file mode 100644
index cc39c1bf45..0000000000
--- a/src/lib/libcrypto/sparcv9cap.c
+++ /dev/null
@@ -1,98 +0,0 @@
1/* $OpenBSD: sparcv9cap.c,v 1.7 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 <sys/time.h>
8#include <openssl/bn.h>
9
10#define SPARCV9_PREFER_FPU (1<<1)
11#define SPARCV9_VIS1 (1<<2)
12#define SPARCV9_VIS2 (1<<3) /* reserved */
13#define SPARCV9_FMADD (1<<4) /* reserved for SPARC64 V */
14
15static int OPENSSL_sparcv9cap_P = 0;
16
17int
18bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
19 const BN_ULONG *np, const BN_ULONG *n0, int num)
20{
21 int bn_mul_mont_fpu(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num);
22 int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num);
23
24 if (num >= 8 && !(num & 1) &&
25 (OPENSSL_sparcv9cap_P & (SPARCV9_PREFER_FPU|SPARCV9_VIS1)) ==
26 (SPARCV9_PREFER_FPU|SPARCV9_VIS1))
27 return bn_mul_mont_fpu(rp, ap, bp, np, n0, num);
28 else
29 return bn_mul_mont_int(rp, ap, bp, np, n0, num);
30}
31
32void _sparcv9_vis1_probe(void);
33unsigned long _sparcv9_vis1_instrument(void);
34void _sparcv9_vis2_probe(void);
35void _sparcv9_fmadd_probe(void);
36
37static sigjmp_buf common_jmp;
38static void
39common_handler(int sig)
40{
41 siglongjmp(common_jmp, sig);
42}
43
44void
45OPENSSL_cpuid_setup(void)
46{
47 char *e;
48 struct sigaction common_act, ill_oact, bus_oact;
49 sigset_t all_masked, oset;
50 static int trigger = 0;
51
52 if (trigger)
53 return;
54 trigger = 1;
55
56 /* Initial value, fits UltraSPARC-I&II... */
57 OPENSSL_sparcv9cap_P = SPARCV9_PREFER_FPU;
58
59 sigfillset(&all_masked);
60 sigdelset(&all_masked, SIGILL);
61 sigdelset(&all_masked, SIGTRAP);
62#ifdef SIGEMT
63 sigdelset(&all_masked, SIGEMT);
64#endif
65 sigdelset(&all_masked, SIGFPE);
66 sigdelset(&all_masked, SIGBUS);
67 sigdelset(&all_masked, SIGSEGV);
68 sigprocmask(SIG_SETMASK, &all_masked, &oset);
69
70 memset(&common_act, 0, sizeof(common_act));
71 common_act.sa_handler = common_handler;
72 common_act.sa_mask = all_masked;
73
74 sigaction(SIGILL, &common_act, &ill_oact);
75 sigaction(SIGBUS,&common_act,&bus_oact);/* T1 fails 16-bit ldda [on Linux] */
76
77 if (sigsetjmp(common_jmp, 1) == 0) {
78 _sparcv9_vis1_probe();
79 OPENSSL_sparcv9cap_P |= SPARCV9_VIS1;
80 /* detect UltraSPARC-Tx, see sparccpud.S for details... */
81 if (_sparcv9_vis1_instrument() >= 12)
82 OPENSSL_sparcv9cap_P &= ~(SPARCV9_VIS1|SPARCV9_PREFER_FPU);
83 else {
84 _sparcv9_vis2_probe();
85 OPENSSL_sparcv9cap_P |= SPARCV9_VIS2;
86 }
87 }
88
89 if (sigsetjmp(common_jmp, 1) == 0) {
90 _sparcv9_fmadd_probe();
91 OPENSSL_sparcv9cap_P |= SPARCV9_FMADD;
92 }
93
94 sigaction(SIGBUS, &bus_oact, NULL);
95 sigaction(SIGILL, &ill_oact, NULL);
96
97 sigprocmask(SIG_SETMASK, &oset, NULL);
98}