#if defined(__linux) || defined(_AIX)
# include <sys/utsname.h>
#endif
-#include <crypto.h>
+#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
+#include <openssl/crypto.h>
#include <openssl/bn.h>
#include "ppc_arch.h"
sha512_block_ppc(ctx, inp, len);
}
+void ChaCha20_ctr32_int(unsigned char *out, const unsigned char *inp,
+ size_t len, const unsigned int key[8],
+ const unsigned int counter[4]);
+void ChaCha20_ctr32_vmx(unsigned char *out, const unsigned char *inp,
+ size_t len, const unsigned int key[8],
+ const unsigned int counter[4]);
+void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp,
+ size_t len, const unsigned int key[8],
+ const unsigned int counter[4])
+{
+ OPENSSL_ppccap_P & PPC_ALTIVEC
+ ? ChaCha20_ctr32_vmx(out, inp, len, key, counter)
+ : ChaCha20_ctr32_int(out, inp, len, key, counter);
+}
+
+void poly1305_init_int(void *ctx, const unsigned char key[16]);
+void poly1305_blocks(void *ctx, const unsigned char *inp, size_t len,
+ unsigned int padbit);
+void poly1305_emit(void *ctx, unsigned char mac[16],
+ const unsigned int nonce[4]);
+void poly1305_init_fpu(void *ctx, const unsigned char key[16]);
+void poly1305_blocks_fpu(void *ctx, const unsigned char *inp, size_t len,
+ unsigned int padbit);
+void poly1305_emit_fpu(void *ctx, unsigned char mac[16],
+ const unsigned int nonce[4]);
+int poly1305_init(void *ctx, const unsigned char key[16], void *func[2])
+{
+ if (sizeof(size_t) == 4 && (OPENSSL_ppccap_P & PPC_FPU)) {
+ poly1305_init_fpu(ctx,key);
+ func[0] = poly1305_blocks_fpu;
+ func[1] = poly1305_emit_fpu;
+ } else {
+ poly1305_init_int(ctx,key);
+ func[0] = poly1305_blocks;
+ func[1] = poly1305_emit;
+ }
+ return 1;
+}
+
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);
+/*
+ * Use a weak reference to getauxval() so we can use it if it is available
+ * but don't break the build if it is not. Note that this is *link-time*
+ * feature detection, not *run-time*. In other words if we link with
+ * symbol present, it's expected to be present even at run-time.
+ */
+#if defined(__GNUC__) && __GNUC__>=2 && defined(__ELF__)
+extern unsigned long getauxval(unsigned long type) __attribute__ ((weak));
+#else
+static unsigned long (*getauxval) (unsigned long) = NULL;
+#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;
return;
trigger = 1;
- 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);
-
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 (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 (getauxval != NULL) {
+ unsigned long hwcap = getauxval(HWCAP);
+
+ 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) && (getauxval(HWCAP2) & HWCAP_VEC_CRYPTO))
+ OPENSSL_ppccap_P |= PPC_CRYPTO207;
+ }
+
+ if (hwcap & HWCAP_ARCH_3_00) {
+ OPENSSL_ppccap_P |= PPC_MADD300;
+ }
+
+ return;
+ }
+
+ 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;
sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
sigaction(SIGILL, &ill_act, &ill_oact);
- if (sizeof(size_t) == 4) {
+ 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)
+ 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_ppc64_probe();
+ OPENSSL_ppccap_P |= PPC_FPU64;
+ }
+ } else {
+ /*
+ * Wanted code detecting POWER6 CPU and setting PPC_FPU64
+ */
+ }
}
if (sigsetjmp(ill_jmp, 1) == 0) {
}
}
+ if (sigsetjmp(ill_jmp, 1) == 0) {
+ OPENSSL_madd300_probe();
+ OPENSSL_ppccap_P |= PPC_MADD300;
+ }
+
sigaction(SIGILL, &ill_oact, NULL);
sigprocmask(SIG_SETMASK, &oset, NULL);
}
projects / openssl.git / blobdiff