From 678948068bbde7f12a9c5f28a467b6cf4d127851 Mon Sep 17 00:00:00 2001 From: Juan Linietsky Date: Fri, 1 Aug 2014 22:10:38 -0300 Subject: Small Issues & Maintenance -=-=-=-=-=-=-=-=-=-=-=-=-= -Begin work on Navigation Meshes (simple pathfinding for now, will improve soon) -More doc on theme overriding -Upgraded OpenSSL to version without bugs -Misc bugfixes --- drivers/builtin_openssl2/crypto/ppccap.c | 126 +++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 drivers/builtin_openssl2/crypto/ppccap.c (limited to 'drivers/builtin_openssl2/crypto/ppccap.c') diff --git a/drivers/builtin_openssl2/crypto/ppccap.c b/drivers/builtin_openssl2/crypto/ppccap.c new file mode 100644 index 0000000000..f71ba66aa3 --- /dev/null +++ b/drivers/builtin_openssl2/crypto/ppccap.c @@ -0,0 +1,126 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +#define PPC_FPU64 (1<<0) +#define PPC_ALTIVEC (1<<1) + +static int OPENSSL_ppccap_P = 0; + +static sigset_t all_masked; + +#ifdef OPENSSL_BN_ASM_MONT +int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num) + { + int bn_mul_mont_fpu64(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num); + int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num); + + if (sizeof(size_t)==4) + { +#if (defined(__APPLE__) && defined(__MACH__)) + if (num>=8 && (num&3)==0 && (OPENSSL_ppccap_P&PPC_FPU64)) + return bn_mul_mont_fpu64(rp,ap,bp,np,n0,num); +#else + /* boundary of 32 was experimentally determined on + Linux 2.6.22, might have to be adjusted on AIX... */ + if (num>=32 && (num&3)==0 && (OPENSSL_ppccap_P&PPC_FPU64)) + { + sigset_t oset; + int ret; + + sigprocmask(SIG_SETMASK,&all_masked,&oset); + ret=bn_mul_mont_fpu64(rp,ap,bp,np,n0,num); + sigprocmask(SIG_SETMASK,&oset,NULL); + + return ret; + } +#endif + } + else if ((OPENSSL_ppccap_P&PPC_FPU64)) + /* this is a "must" on POWER6, but run-time detection + * is not implemented yet... */ + return bn_mul_mont_fpu64(rp,ap,bp,np,n0,num); + + return bn_mul_mont_int(rp,ap,bp,np,n0,num); + } +#endif + +static sigjmp_buf ill_jmp; +static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); } + +void OPENSSL_ppc64_probe(void); +void OPENSSL_altivec_probe(void); + +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; + + 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) + if (sizeof(size_t)==4 +# if defined(_SC_AIX_KERNEL_BITMODE) + && sysconf(_SC_AIX_KERNEL_BITMODE)!=64 +# endif + ) + return; +#endif + + 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 (sizeof(size_t)==4) + { + 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; + } + + sigaction (SIGILL,&ill_oact,NULL); + sigprocmask(SIG_SETMASK,&oset,NULL); + } -- cgit v1.2.3