summaryrefslogtreecommitdiff
path: root/app/openssl/crypto/armcap.c
diff options
context:
space:
mode:
authorParménides GV <parmegv@sdf.org>2015-06-04 19:20:15 +0200
committerParménides GV <parmegv@sdf.org>2015-06-04 19:20:15 +0200
commit27594eeae6f40a402bc3110f06d57975168e74e3 (patch)
treecdabf6571e6f4ff07205fd6921d8095539a1fcdc /app/openssl/crypto/armcap.c
parent8dc4f58d96892fbfd83094fb85b1d17656035290 (diff)
ics-openvpn as a submodule! beautiful
ics-openvpn is now officially on GitHub, and they track openssl and openvpn as submodules, so it's easier to update everything. Just a git submodule update --recursive. I've also set up soft links to native modules from ics-openvpn in app, so that we don't copy files in Gradle (which was causing problems with the submodules .git* files, not being copied). That makes the repo cleaner.
Diffstat (limited to 'app/openssl/crypto/armcap.c')
-rw-r--r--app/openssl/crypto/armcap.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/app/openssl/crypto/armcap.c b/app/openssl/crypto/armcap.c
deleted file mode 100644
index 7e46d07a..00000000
--- a/app/openssl/crypto/armcap.c
+++ /dev/null
@@ -1,157 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <crypto.h>
-
-#include "arm_arch.h"
-
-unsigned int OPENSSL_armcap_P;
-
-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);
-unsigned long _armv7_tick(void);
-
-unsigned long OPENSSL_rdtsc(void)
- {
- if (OPENSSL_armcap_P & ARMV7_TICK)
- return _armv7_tick();
- else
- return 0;
- }
-
-/*
- * 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.
- */
-#if defined(__GNUC__) && __GNUC__>=2
-void OPENSSL_cpuid_setup(void) __attribute__((constructor));
-extern unsigned long getauxval(unsigned long type) __attribute__((weak));
-#else
-static unsigned long (*getauxval)(unsigned long) = NULL;
-#endif
-
-/*
- * ARM puts the 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)
-#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_armcap")))
- {
- OPENSSL_armcap_P=(unsigned int)strtoul(e,NULL,0);
- return;
- }
-
- sigfillset(&all_masked);
- sigdelset(&all_masked,SIGILL);
- sigdelset(&all_masked,SIGTRAP);
- sigdelset(&all_masked,SIGFPE);
- sigdelset(&all_masked,SIGBUS);
- sigdelset(&all_masked,SIGSEGV);
-
- OPENSSL_armcap_P = 0;
-
- 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 (getauxval != NULL)
- {
- 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;
- }
- }
- else 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 (sigsetjmp(ill_jmp,1) == 0)
- {
- _armv7_tick();
- OPENSSL_armcap_P |= ARMV7_TICK;
- }
-
- sigaction (SIGILL,&ill_oact,NULL);
- sigprocmask(SIG_SETMASK,&oset,NULL);
- }