mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-04 13:23:26 +01:00
312 lines
8.3 KiB
C
312 lines
8.3 KiB
C
|
/*
|
||
|
* Copyright 2009-2021 The OpenSSL Project Authors. All Rights Reserved.
|
||
|
*
|
||
|
* Licensed under the Apache License 2.0 (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 <unistd.h>
|
||
|
#if defined(__linux) || defined(_AIX)
|
||
|
# include <sys/utsname.h>
|
||
|
#endif
|
||
|
#if defined(_AIX53) /* defined even on post-5.3 */
|
||
|
# include <sys/systemcfg.h>
|
||
|
# if !defined(__power_set)
|
||
|
# define __power_set(a) (_system_configuration.implementation & (a))
|
||
|
# endif
|
||
|
#endif
|
||
|
#if defined(__APPLE__) && defined(__MACH__)
|
||
|
# include <sys/types.h>
|
||
|
# include <sys/sysctl.h>
|
||
|
#endif
|
||
|
#include <openssl/crypto.h>
|
||
|
#include "internal/cryptlib.h"
|
||
|
#include "crypto/ppc_arch.h"
|
||
|
|
||
|
unsigned int OPENSSL_ppccap_P = 0;
|
||
|
|
||
|
static sigset_t all_masked;
|
||
|
|
||
|
static sigjmp_buf ill_jmp;
|
||
|
static void ill_handler(int sig)
|
||
|
{
|
||
|
siglongjmp(ill_jmp, sig);
|
||
|
}
|
||
|
|
||
|
void OPENSSL_fpu_probe(void);
|
||
|
void OPENSSL_ppc64_probe(void);
|
||
|
void OPENSSL_altivec_probe(void);
|
||
|
void OPENSSL_crypto207_probe(void);
|
||
|
void OPENSSL_madd300_probe(void);
|
||
|
|
||
|
long OPENSSL_rdtsc_mftb(void);
|
||
|
long OPENSSL_rdtsc_mfspr268(void);
|
||
|
|
||
|
uint32_t OPENSSL_rdtsc(void)
|
||
|
{
|
||
|
if (OPENSSL_ppccap_P & PPC_MFTB)
|
||
|
return OPENSSL_rdtsc_mftb();
|
||
|
else if (OPENSSL_ppccap_P & PPC_MFSPR268)
|
||
|
return OPENSSL_rdtsc_mfspr268();
|
||
|
else
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
size_t OPENSSL_instrument_bus_mftb(unsigned int *, size_t);
|
||
|
size_t OPENSSL_instrument_bus_mfspr268(unsigned int *, size_t);
|
||
|
|
||
|
size_t OPENSSL_instrument_bus(unsigned int *out, size_t cnt)
|
||
|
{
|
||
|
if (OPENSSL_ppccap_P & PPC_MFTB)
|
||
|
return OPENSSL_instrument_bus_mftb(out, cnt);
|
||
|
else if (OPENSSL_ppccap_P & PPC_MFSPR268)
|
||
|
return OPENSSL_instrument_bus_mfspr268(out, cnt);
|
||
|
else
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
size_t OPENSSL_instrument_bus2_mftb(unsigned int *, size_t, size_t);
|
||
|
size_t OPENSSL_instrument_bus2_mfspr268(unsigned int *, size_t, size_t);
|
||
|
|
||
|
size_t OPENSSL_instrument_bus2(unsigned int *out, size_t cnt, size_t max)
|
||
|
{
|
||
|
if (OPENSSL_ppccap_P & PPC_MFTB)
|
||
|
return OPENSSL_instrument_bus2_mftb(out, cnt, max);
|
||
|
else if (OPENSSL_ppccap_P & PPC_MFSPR268)
|
||
|
return OPENSSL_instrument_bus2_mfspr268(out, cnt, max);
|
||
|
else
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
|
||
|
# if __GLIBC_PREREQ(2, 16)
|
||
|
# include <sys/auxv.h>
|
||
|
# define OSSL_IMPLEMENT_GETAUXVAL
|
||
|
# elif defined(__ANDROID_API__)
|
||
|
/* see https://developer.android.google.cn/ndk/guides/cpu-features */
|
||
|
# if __ANDROID_API__ >= 18
|
||
|
# include <sys/auxv.h>
|
||
|
# define OSSL_IMPLEMENT_GETAUXVAL
|
||
|
# endif
|
||
|
# 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
|
||
|
|
||
|
/* I wish <sys/auxv.h> was universally available */
|
||
|
#define HWCAP 16 /* AT_HWCAP */
|
||
|
#define HWCAP_PPC64 (1U << 30)
|
||
|
#define HWCAP_ALTIVEC (1U << 28)
|
||
|
#define HWCAP_FPU (1U << 27)
|
||
|
#define HWCAP_POWER6_EXT (1U << 9)
|
||
|
#define HWCAP_VSX (1U << 7)
|
||
|
|
||
|
#define HWCAP2 26 /* AT_HWCAP2 */
|
||
|
#define HWCAP_VEC_CRYPTO (1U << 25)
|
||
|
#define HWCAP_ARCH_3_00 (1U << 23)
|
||
|
|
||
|
# if defined(__GNUC__) && __GNUC__>=2
|
||
|
__attribute__ ((constructor))
|
||
|
# endif
|
||
|
void OPENSSL_cpuid_setup(void)
|
||
|
{
|
||
|
char *e;
|
||
|
struct sigaction ill_oact, ill_act;
|
||
|
sigset_t oset;
|
||
|
static int trigger = 0;
|
||
|
|
||
|
if (trigger)
|
||
|
return;
|
||
|
trigger = 1;
|
||
|
|
||
|
if ((e = getenv("OPENSSL_ppccap"))) {
|
||
|
OPENSSL_ppccap_P = strtoul(e, NULL, 0);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
OPENSSL_ppccap_P = 0;
|
||
|
|
||
|
#if defined(_AIX)
|
||
|
OPENSSL_ppccap_P |= PPC_FPU;
|
||
|
|
||
|
if (sizeof(size_t) == 4) {
|
||
|
struct utsname uts;
|
||
|
# if defined(_SC_AIX_KERNEL_BITMODE)
|
||
|
if (sysconf(_SC_AIX_KERNEL_BITMODE) != 64)
|
||
|
return;
|
||
|
# endif
|
||
|
if (uname(&uts) != 0 || atoi(uts.version) < 6)
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
# if defined(__power_set)
|
||
|
/*
|
||
|
* Value used in __power_set is a single-bit 1<<n one denoting
|
||
|
* specific processor class. Incidentally 0xffffffff<<n can be
|
||
|
* used to denote specific processor and its successors.
|
||
|
*/
|
||
|
if (sizeof(size_t) == 4) {
|
||
|
/* In 32-bit case PPC_FPU64 is always fastest [if option] */
|
||
|
if (__power_set(0xffffffffU<<13)) /* POWER5 and later */
|
||
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
||
|
} else {
|
||
|
/* In 64-bit case PPC_FPU64 is fastest only on POWER6 */
|
||
|
if (__power_set(0x1U<<14)) /* POWER6 */
|
||
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
||
|
}
|
||
|
|
||
|
if (__power_set(0xffffffffU<<14)) /* POWER6 and later */
|
||
|
OPENSSL_ppccap_P |= PPC_ALTIVEC;
|
||
|
|
||
|
if (__power_set(0xffffffffU<<16)) /* POWER8 and later */
|
||
|
OPENSSL_ppccap_P |= PPC_CRYPTO207;
|
||
|
|
||
|
if (__power_set(0xffffffffU<<17)) /* POWER9 and later */
|
||
|
OPENSSL_ppccap_P |= PPC_MADD300;
|
||
|
|
||
|
return;
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
#if defined(__APPLE__) && defined(__MACH__)
|
||
|
OPENSSL_ppccap_P |= PPC_FPU;
|
||
|
|
||
|
{
|
||
|
int val;
|
||
|
size_t len = sizeof(val);
|
||
|
|
||
|
if (sysctlbyname("hw.optional.64bitops", &val, &len, NULL, 0) == 0) {
|
||
|
if (val)
|
||
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
||
|
}
|
||
|
|
||
|
len = sizeof(val);
|
||
|
if (sysctlbyname("hw.optional.altivec", &val, &len, NULL, 0) == 0) {
|
||
|
if (val)
|
||
|
OPENSSL_ppccap_P |= PPC_ALTIVEC;
|
||
|
}
|
||
|
|
||
|
return;
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
#ifdef OSSL_IMPLEMENT_GETAUXVAL
|
||
|
{
|
||
|
unsigned long hwcap = getauxval(HWCAP);
|
||
|
unsigned long hwcap2 = getauxval(HWCAP2);
|
||
|
|
||
|
if (hwcap & HWCAP_FPU) {
|
||
|
OPENSSL_ppccap_P |= PPC_FPU;
|
||
|
|
||
|
if (sizeof(size_t) == 4) {
|
||
|
/* In 32-bit case PPC_FPU64 is always fastest [if option] */
|
||
|
if (hwcap & HWCAP_PPC64)
|
||
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
||
|
} else {
|
||
|
/* In 64-bit case PPC_FPU64 is fastest only on POWER6 */
|
||
|
if (hwcap & HWCAP_POWER6_EXT)
|
||
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (hwcap & HWCAP_ALTIVEC) {
|
||
|
OPENSSL_ppccap_P |= PPC_ALTIVEC;
|
||
|
|
||
|
if ((hwcap & HWCAP_VSX) && (hwcap2 & HWCAP_VEC_CRYPTO))
|
||
|
OPENSSL_ppccap_P |= PPC_CRYPTO207;
|
||
|
}
|
||
|
|
||
|
if (hwcap2 & HWCAP_ARCH_3_00) {
|
||
|
OPENSSL_ppccap_P |= PPC_MADD300;
|
||
|
}
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
sigfillset(&all_masked);
|
||
|
sigdelset(&all_masked, SIGILL);
|
||
|
sigdelset(&all_masked, SIGTRAP);
|
||
|
#ifdef SIGEMT
|
||
|
sigdelset(&all_masked, SIGEMT);
|
||
|
#endif
|
||
|
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);
|
||
|
|
||
|
#ifndef OSSL_IMPLEMENT_GETAUXVAL
|
||
|
if (sigsetjmp(ill_jmp,1) == 0) {
|
||
|
OPENSSL_fpu_probe();
|
||
|
OPENSSL_ppccap_P |= PPC_FPU;
|
||
|
|
||
|
if (sizeof(size_t) == 4) {
|
||
|
# ifdef __linux
|
||
|
struct utsname uts;
|
||
|
if (uname(&uts) == 0 && strcmp(uts.machine, "ppc64") == 0)
|
||
|
# endif
|
||
|
if (sigsetjmp(ill_jmp, 1) == 0) {
|
||
|
OPENSSL_ppc64_probe();
|
||
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
||
|
}
|
||
|
} else {
|
||
|
/*
|
||
|
* Wanted code detecting POWER6 CPU and setting PPC_FPU64
|
||
|
*/
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (sigsetjmp(ill_jmp, 1) == 0) {
|
||
|
OPENSSL_altivec_probe();
|
||
|
OPENSSL_ppccap_P |= PPC_ALTIVEC;
|
||
|
if (sigsetjmp(ill_jmp, 1) == 0) {
|
||
|
OPENSSL_crypto207_probe();
|
||
|
OPENSSL_ppccap_P |= PPC_CRYPTO207;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (sigsetjmp(ill_jmp, 1) == 0) {
|
||
|
OPENSSL_madd300_probe();
|
||
|
OPENSSL_ppccap_P |= PPC_MADD300;
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
if (sigsetjmp(ill_jmp, 1) == 0) {
|
||
|
OPENSSL_rdtsc_mftb();
|
||
|
OPENSSL_ppccap_P |= PPC_MFTB;
|
||
|
} else if (sigsetjmp(ill_jmp, 1) == 0) {
|
||
|
OPENSSL_rdtsc_mfspr268();
|
||
|
OPENSSL_ppccap_P |= PPC_MFSPR268;
|
||
|
}
|
||
|
|
||
|
sigaction(SIGILL, &ill_oact, NULL);
|
||
|
sigprocmask(SIG_SETMASK, &oset, NULL);
|
||
|
}
|