X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fia64cpuid.S;h=04fbb3439eb790a6b116653ef5c94dc442b89563;hb=777c47acbeecf9602cc465864c9f5f2c609c989d;hp=a800527a58fa910f9f6b238036fefdff1e62c2b9;hpb=14e21f863a3e3278bb8660ea9844e92e52e1f2f7;p=oweals%2Fopenssl.git

diff --git a/crypto/ia64cpuid.S b/crypto/ia64cpuid.S
index a800527a58..04fbb3439e 100644
--- a/crypto/ia64cpuid.S
+++ b/crypto/ia64cpuid.S
@@ -4,6 +4,118 @@
 .global	OPENSSL_rdtsc#
 .proc	OPENSSL_rdtsc#
 OPENSSL_rdtsc:
-	mov	r8=ar.itc
-	br.ret	b0
+{ .mib;	mov			r8=ar.itc
+	br.ret.sptk.many	b0		};;
 .endp   OPENSSL_rdtsc#
+
+.global	OPENSSL_atomic_add#
+.proc	OPENSSL_atomic_add#
+.align	32
+OPENSSL_atomic_add:
+{ .mii;	ld4		r2=[r32]
+	nop.i		0
+	nop.i		0		};;
+.Lspin:
+{ .mii;	mov		ar.ccv=r2
+	add		r8=r2,r33
+	mov		r3=r2		};;
+{ .mmi;	mf
+	cmpxchg4.acq	r2=[r32],r8,ar.ccv
+	nop.i		0		};;
+{ .mib;	cmp.ne		p6,p0=r2,r3
+	nop.i		0
+(p6)	br.dpnt		.Lspin		};;
+{ .mib;	nop.m		0
+	sxt4		r8=r8
+	br.ret.sptk.many	b0	};;
+.endp	OPENSSL_atomic_add#
+
+// Returns a structure comprising pointer to the top of stack of
+// the caller and pointer beyond backing storage for the current
+// register frame. The latter is required, because it might be
+// insufficient to wipe backing storage for the current frame
+// (as this procedure does), one might have to go further, toward
+// higher addresses to reach for whole "retroactively" saved
+// context...
+.global	OPENSSL_wipe_cpu#
+.proc	OPENSSL_wipe_cpu#
+.align	32
+OPENSSL_wipe_cpu:
+	.prologue
+	.fframe	0
+	.save	ar.pfs,r2
+	.save	ar.lc,r3
+{ .mib;	alloc		r2=ar.pfs,0,96,0,96
+	mov		r3=ar.lc
+	brp.loop.imp	.L_wipe_top,.L_wipe_end-16
+					};;
+{ .mii;	mov		r9=ar.bsp
+	mov		r8=pr
+	mov		ar.lc=96	};;
+	.body
+{ .mii;	add		r9=96*8-8,r9
+	mov		ar.ec=1		};;
+
+// One can sweep double as fast, but then we can't quarantee
+// that backing storage is wiped...
+.L_wipe_top:
+{ .mfi;	st8		[r9]=r0,-8
+	mov		f127=f0
+	mov		r127=r0		}
+{ .mfb;	nop.m		0
+	nop.f		0
+	br.ctop.sptk	.L_wipe_top	};;
+.L_wipe_end:
+
+{ .mfi;	mov		r11=r0
+	mov		f6=f0
+	mov		r14=r0		}
+{ .mfi;	mov		r15=r0
+	mov		f7=f0
+	mov		r16=r0		}
+{ .mfi;	mov		r17=r0
+	mov		f8=f0
+	mov		r18=r0		}
+{ .mfi;	mov		r19=r0
+	mov		f9=f0
+	mov		r20=r0		}
+{ .mfi;	mov		r21=r0
+	mov		f10=f0
+	mov		r22=r0		}
+{ .mfi;	mov		r23=r0
+	mov		f11=f0
+	mov		r24=r0		}
+{ .mfi;	mov		r25=r0
+	mov		f12=f0
+	mov		r26=r0		}
+{ .mfi;	mov		r27=r0
+	mov		f13=f0
+	mov		r28=r0		}
+{ .mfi;	mov		r29=r0
+	mov		f14=f0
+	mov		r30=r0		}
+{ .mfi;	mov		r31=r0
+	mov		f15=f0
+	nop.i		0		}
+{ .mfi;	mov		f16=f0		}
+{ .mfi;	mov		f17=f0		}
+{ .mfi;	mov		f18=f0		}
+{ .mfi;	mov		f19=f0		}
+{ .mfi;	mov		f20=f0		}
+{ .mfi;	mov		f21=f0		}
+{ .mfi;	mov		f22=f0		}
+{ .mfi;	mov		f23=f0		}
+{ .mfi;	mov		f24=f0		}
+{ .mfi;	mov		f25=f0		}
+{ .mfi;	mov		f26=f0		}
+{ .mfi;	mov		f27=f0		}
+{ .mfi;	mov		f28=f0		}
+{ .mfi;	mov		f29=f0		}
+{ .mfi;	mov		f30=f0		}
+{ .mfi;	add		r9=96*8+8,r9
+	mov		f31=f0
+	mov		pr=r8,0x1ffff	}
+{ .mib;	mov		r8=sp
+	mov		ar.lc=r3
+	br.ret.sptk	b0		};;
+.endp	OPENSSL_wipe_cpu#