1 // Works on all IA-64 platforms: Linux, HP-UX, Win64i... 2 // On Win64i compile with ias.exe. 3 .text 4 5 .global OPENSSL_cpuid_setup# 6 .proc OPENSSL_cpuid_setup# 7 OPENSSL_cpuid_setup: 8 { .mib; br.ret.sptk.many b0 };; 9 .endp OPENSSL_cpuid_setup# 10 11 .global OPENSSL_rdtsc# 12 .proc OPENSSL_rdtsc# 13 OPENSSL_rdtsc: 14 { .mib; mov r8=ar.itc 15 br.ret.sptk.many b0 };; 16 .endp OPENSSL_rdtsc# 17 18 .global OPENSSL_atomic_add# 19 .proc OPENSSL_atomic_add# 20 .align 32 21 OPENSSL_atomic_add: 22 { .mii; ld4 r2=[r32] 23 nop.i 0 24 nop.i 0 };; 25 .Lspin: 26 { .mii; mov ar.ccv=r2 27 add r8=r2,r33 28 mov r3=r2 };; 29 { .mmi; mf;; 30 cmpxchg4.acq r2=[r32],r8,ar.ccv 31 nop.i 0 };; 32 { .mib; cmp.ne p6,p0=r2,r3 33 nop.i 0 34 (p6) br.dpnt .Lspin };; 35 { .mib; nop.m 0 36 sxt4 r8=r8 37 br.ret.sptk.many b0 };; 38 .endp OPENSSL_atomic_add# 39 40 // Returns a structure comprising pointer to the top of stack of 41 // the caller and pointer beyond backing storage for the current 42 // register frame. The latter is required, because it might be 43 // insufficient to wipe backing storage for the current frame 44 // (as this procedure does), one might have to go further, toward 45 // higher addresses to reach for whole "retroactively" saved 46 // context... 47 .global OPENSSL_wipe_cpu# 48 .proc OPENSSL_wipe_cpu# 49 .align 32 50 OPENSSL_wipe_cpu: 51 .prologue 52 .fframe 0 53 .save ar.pfs,r2 54 .save ar.lc,r3 55 { .mib; alloc r2=ar.pfs,0,96,0,96 56 mov r3=ar.lc 57 brp.loop.imp .L_wipe_top,.L_wipe_end-16 58 };; 59 { .mii; mov r9=ar.bsp 60 mov r8=pr 61 mov ar.lc=96 };; 62 .body 63 { .mii; add r9=96*8-8,r9 64 mov ar.ec=1 };; 65 66 // One can sweep double as fast, but then we can't quarantee 67 // that backing storage is wiped... 68 .L_wipe_top: 69 { .mfi; st8 [r9]=r0,-8 70 mov f127=f0 71 mov r127=r0 } 72 { .mfb; nop.m 0 73 nop.f 0 74 br.ctop.sptk .L_wipe_top };; 75 .L_wipe_end: 76 77 { .mfi; mov r11=r0 78 mov f6=f0 79 mov r14=r0 } 80 { .mfi; mov r15=r0 81 mov f7=f0 82 mov r16=r0 } 83 { .mfi; mov r17=r0 84 mov f8=f0 85 mov r18=r0 } 86 { .mfi; mov r19=r0 87 mov f9=f0 88 mov r20=r0 } 89 { .mfi; mov r21=r0 90 mov f10=f0 91 mov r22=r0 } 92 { .mfi; mov r23=r0 93 mov f11=f0 94 mov r24=r0 } 95 { .mfi; mov r25=r0 96 mov f12=f0 97 mov r26=r0 } 98 { .mfi; mov r27=r0 99 mov f13=f0 100 mov r28=r0 } 101 { .mfi; mov r29=r0 102 mov f14=f0 103 mov r30=r0 } 104 { .mfi; mov r31=r0 105 mov f15=f0 106 nop.i 0 } 107 { .mfi; mov f16=f0 } 108 { .mfi; mov f17=f0 } 109 { .mfi; mov f18=f0 } 110 { .mfi; mov f19=f0 } 111 { .mfi; mov f20=f0 } 112 { .mfi; mov f21=f0 } 113 { .mfi; mov f22=f0 } 114 { .mfi; mov f23=f0 } 115 { .mfi; mov f24=f0 } 116 { .mfi; mov f25=f0 } 117 { .mfi; mov f26=f0 } 118 { .mfi; mov f27=f0 } 119 { .mfi; mov f28=f0 } 120 { .mfi; mov f29=f0 } 121 { .mfi; mov f30=f0 } 122 { .mfi; add r9=96*8+8,r9 123 mov f31=f0 124 mov pr=r8,0x1ffff } 125 { .mib; mov r8=sp 126 mov ar.lc=r3 127 br.ret.sptk b0 };; 128 .endp OPENSSL_wipe_cpu# 129 130 .global OPENSSL_cleanse# 131 .proc OPENSSL_cleanse# 132 OPENSSL_cleanse: 133 { .mib; cmp.eq p6,p0=0,r33 // len==0 134 #if defined(_HPUX_SOURCE) && !defined(_LP64) 135 addp4 r32=0,r32 136 #endif 137 (p6) br.ret.spnt b0 };; 138 { .mib; and r2=7,r32 139 cmp.leu p6,p0=15,r33 // len>=15 140 (p6) br.cond.dptk .Lot };; 141 142 .Little: 143 { .mib; st1 [r32]=r0,1 144 cmp.ltu p6,p7=1,r33 } // len>1 145 { .mbb; add r33=-1,r33 // len-- 146 (p6) br.cond.dptk .Little 147 (p7) br.ret.sptk.many b0 };; 148 149 .Lot: 150 { .mib; cmp.eq p6,p0=0,r2 151 (p6) br.cond.dptk .Laligned };; 152 { .mmi; st1 [r32]=r0,1;; 153 and r2=7,r32 } 154 { .mib; add r33=-1,r33 155 br .Lot };; 156 157 .Laligned: 158 { .mmi; st8 [r32]=r0,8 159 and r2=-8,r33 // len&~7 160 add r33=-8,r33 };; // len-=8 161 { .mib; cmp.ltu p6,p0=8,r2 // ((len+8)&~7)>8 162 (p6) br.cond.dptk .Laligned };; 163 164 { .mbb; cmp.eq p6,p7=r0,r33 165 (p7) br.cond.dpnt .Little 166 (p6) br.ret.sptk.many b0 };; 167 .endp OPENSSL_cleanse# 168
