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📄 LPdir_unix.c(4.88 KB)
📁 aes
📁 aria
📄 arm64cpuid.pl(2.81 KB)
📄 arm_arch.h(2.57 KB)
📄 armcap.c(5.87 KB)
📄 armv4cpuid.pl(5.33 KB)
📁 asn1
📁 async
📁 bf
📁 bio
📁 blake2
📁 bn
📁 buffer
📄 build.info(1.56 KB)
📄 c64xpluscpuid.pl(5.3 KB)
📁 camellia
📁 cast
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📁 cmac
📁 cms
📁 comp
📁 conf
📄 cpt_err.c(3.04 KB)
📄 cryptlib.c(12.86 KB)
📁 ct
📄 ctype.c(14.39 KB)
📄 cversion.c(1.03 KB)
📁 des
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📄 dllmain.c(1.17 KB)
📁 dsa
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📄 ebcdic.c(14.97 KB)
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📄 ex_data.c(11.14 KB)
📄 getenv.c(728 B)
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📄 ia64cpuid.S(6.34 KB)
📁 idea
📄 init.c(24.44 KB)
📁 kdf
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📁 md2
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📄 mem.c(7.85 KB)
📄 mem_clr.c(770 B)
📄 mem_dbg.c(17.65 KB)
📄 mem_sec.c(17.01 KB)
📄 mips_arch.h(1.21 KB)
📁 modes
📄 o_dir.c(1.05 KB)
📄 o_fips.c(621 B)
📄 o_fopen.c(4.26 KB)
📄 o_init.c(513 B)
📄 o_str.c(6.36 KB)
📄 o_time.c(5.52 KB)
📁 objects
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📄 pariscid.pl(4.57 KB)
📁 pem
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📁 pkcs12
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📄 ppc_arch.h(827 B)
📄 ppccap.c(12.87 KB)
📄 ppccpuid.pl(7.01 KB)
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📄 s390x_arch.h(3.07 KB)
📄 s390xcap.c(1.97 KB)
📄 s390xcpuid.pl(8.54 KB)
📁 seed
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📄 sparc_arch.h(4.24 KB)
📄 sparccpuid.S(12 KB)
📄 sparcv9cap.c(10.49 KB)
📁 srp
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📄 threads_none.c(2.86 KB)
📄 threads_pthread.c(4.15 KB)
📁 ts
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📁 ui
📄 uid.c(1.09 KB)
📄 vms_rms.h(2.1 KB)
📁 whrlpool
📁 x509
📁 x509v3
📄 x86_64cpuid.pl(10.14 KB)
📄 x86cpuid.pl(12.2 KB)

Editing: armcap.c

/*
 * Copyright 2011-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <signal.h>
#include <openssl/crypto.h>
#include "internal/cryptlib.h"

#include "arm_arch.h"

unsigned int OPENSSL_armcap_P = 0;

#if __ARM_MAX_ARCH__<7
void OPENSSL_cpuid_setup(void)
{
}

uint32_t OPENSSL_rdtsc(void)
{
    return 0;
}
#else
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);
# ifdef __aarch64__
void _armv8_sha512_probe(void);
# endif
uint32_t _armv7_tick(void);

uint32_t OPENSSL_rdtsc(void)
{
    if (OPENSSL_armcap_P & ARMV7_TICK)
        return _armv7_tick();
    else
        return 0;
}

# if defined(__GNUC__) && __GNUC__>=2
void OPENSSL_cpuid_setup(void) __attribute__ ((constructor));
# endif

# if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
#  if __GLIBC_PREREQ(2, 16)
#   include <sys/auxv.h>
#   define OSSL_IMPLEMENT_GETAUXVAL
#  endif
# endif
# if defined(__FreeBSD__)
#  include <sys/param.h>
#  if __FreeBSD_version >= 1200000
#   include <sys/auxv.h>
#   define OSSL_IMPLEMENT_GETAUXVAL

static unsigned long getauxval(unsigned long key)
{
  unsigned long val = 0ul;

if (elf_aux_info((int)key, &val, sizeof(val)) != 0)
    return 0ul;

return val;
}
#  endif
# endif

/*
 * ARM puts the feature bits for Crypto Extensions in AT_HWCAP2, whereas
 * AArch64 used AT_HWCAP.
 */
# if defined(__arm__) || defined (__arm)
#  define HWCAP                  16
                                  /* AT_HWCAP */
#  define HWCAP_NEON             (1 << 12)

#  define HWCAP_CE               26
                                  /* AT_HWCAP2 */
#  define HWCAP_CE_AES           (1 << 0)
#  define HWCAP_CE_PMULL         (1 << 1)
#  define HWCAP_CE_SHA1          (1 << 2)
#  define HWCAP_CE_SHA256        (1 << 3)
# elif defined(__aarch64__)
#  define HWCAP                  16
                                  /* AT_HWCAP */
#  define HWCAP_NEON             (1 << 1)

#  define HWCAP_CE               HWCAP
#  define HWCAP_CE_AES           (1 << 3)
#  define HWCAP_CE_PMULL         (1 << 4)
#  define HWCAP_CE_SHA1          (1 << 5)
#  define HWCAP_CE_SHA256        (1 << 6)
#  define HWCAP_CE_SHA512        (1 << 21)
# endif

void OPENSSL_cpuid_setup(void)
{
    const char *e;
    struct sigaction ill_oact, ill_act;
    sigset_t oset;
    static int trigger = 0;

if (trigger)
        return;
    trigger = 1;

if ((e = getenv("OPENSSL_armcap"))) {
        OPENSSL_armcap_P = (unsigned int)strtoul(e, NULL, 0);
        return;
    }

# if defined(__APPLE__) && !defined(__aarch64__)
    /*
     * Capability probing by catching SIGILL appears to be problematic
     * on iOS. But since Apple universe is "monocultural", it's actually
     * possible to simply set pre-defined processor capability mask.
     */
    if (1) {
        OPENSSL_armcap_P = ARMV7_NEON;
        return;
    }
    /*
     * One could do same even for __aarch64__ iOS builds. It's not done
     * exclusively for reasons of keeping code unified across platforms.
     * Unified code works because it never triggers SIGILL on Apple
     * devices...
     */
# endif

OPENSSL_armcap_P = 0;

# ifdef OSSL_IMPLEMENT_GETAUXVAL
    if (getauxval(HWCAP) & HWCAP_NEON) {
        unsigned long hwcap = getauxval(HWCAP_CE);

OPENSSL_armcap_P |= ARMV7_NEON;

if (hwcap & HWCAP_CE_AES)
            OPENSSL_armcap_P |= ARMV8_AES;

if (hwcap & HWCAP_CE_PMULL)
            OPENSSL_armcap_P |= ARMV8_PMULL;

if (hwcap & HWCAP_CE_SHA1)
            OPENSSL_armcap_P |= ARMV8_SHA1;

if (hwcap & HWCAP_CE_SHA256)
            OPENSSL_armcap_P |= ARMV8_SHA256;

#  ifdef __aarch64__
        if (hwcap & HWCAP_CE_SHA512)
            OPENSSL_armcap_P |= ARMV8_SHA512;
#  endif
    }
# endif

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 we used getauxval, we already have all the values */
# ifndef OSSL_IMPLEMENT_GETAUXVAL
    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;
        }
#  if defined(__aarch64__) && !defined(__APPLE__)
        if (sigsetjmp(ill_jmp, 1) == 0) {
            _armv8_sha512_probe();
            OPENSSL_armcap_P |= ARMV8_SHA512;
        }
#  endif
    }
# endif

/* Things that getauxval didn't tell us */
    if (sigsetjmp(ill_jmp, 1) == 0) {
        _armv7_tick();
        OPENSSL_armcap_P |= ARMV7_TICK;
    }

sigaction(SIGILL, &ill_oact, NULL);
    sigprocmask(SIG_SETMASK, &oset, NULL);
}
#endif

003 File Manager

Editing: armcap.c

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