Start disentangling armv7 and aarch64 code

arm_arch.h and armcap.c are shared between armv7 and aarch64 which
results in an inscrutable #ifdef maze. Move copies of these files
into arch/{arm,aarch64}/ with appropriate names and some trivial
minor adjustments.

ok deraadt inoguchi kettenis

1 files changed, 0 insertions, 88 deletions

diff --git a/src/lib/libcrypto/armcap.c b/src/lib/libcrypto/armcap.c
deleted file mode 100644
index 8c4983280e..0000000000
--- a/src/lib/libcrypto/armcap.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/* $OpenBSD: armcap.c,v 1.8 2019/03/13 10:18:30 patrick Exp $ */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <openssl/crypto.h>
-
-#include "arm_arch.h"
-
-unsigned int OPENSSL_armcap_P;
-
-#if __ARM_ARCH__ >= 7
-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);
-#endif
-
-#if defined(__GNUC__) && __GNUC__>=2
-void OPENSSL_cpuid_setup(void) __attribute__((constructor));
-#endif
-
-void
-OPENSSL_cpuid_setup(void)
-{
-#if __ARM_ARCH__ >= 7
-        struct sigaction        ill_oact, ill_act;
-        sigset_t                oset;
-#endif
-        static int trigger = 0;
-
-        if (trigger)
-                return;
-        trigger = 1;
-
-        OPENSSL_armcap_P = 0;
-
-#if __ARM_ARCH__ >= 7
-        sigfillset(&all_masked);
-        sigdelset(&all_masked, SIGILL);
-        sigdelset(&all_masked, SIGTRAP);
-        sigdelset(&all_masked, SIGFPE);
-        sigdelset(&all_masked, SIGBUS);
-        sigdelset(&all_masked, SIGSEGV);
-
-        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 (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;
-                }
-        }
-
-        sigaction (SIGILL, &ill_oact, NULL);
-        sigprocmask(SIG_SETMASK, &oset, NULL);
-#endif
-}