From 21a2d4cbfbe44f35adc4655aee0378ef3d06b022 Mon Sep 17 00:00:00 2001
From: miod <>
Date: Tue, 17 Jan 2023 15:04:27 +0000
Subject: Remove non-visible and unused OPENSSL_wipe_cpu and OPENSSL_atomic_add
 interfaces, and remove empty assembly OPENSSL_cpuid_setup routines - the
 default empty C fallback will work as good.

ok jsing@
---
 src/lib/libcrypto/arch/arm/armv4cpuid.S | 96 ---------------------------------
 1 file changed, 96 deletions(-)

(limited to 'src/lib/libcrypto/arch/arm/armv4cpuid.S')

diff --git a/src/lib/libcrypto/arch/arm/armv4cpuid.S b/src/lib/libcrypto/arch/arm/armv4cpuid.S
index bb9abafebe..db0b54e496 100644
--- a/src/lib/libcrypto/arch/arm/armv4cpuid.S
+++ b/src/lib/libcrypto/arch/arm/armv4cpuid.S
@@ -9,43 +9,6 @@
 #undef	__thumb2__
 #endif
 
-.align	5
-.globl	OPENSSL_atomic_add
-.type	OPENSSL_atomic_add,%function
-OPENSSL_atomic_add:
-#if __ARM_ARCH__>=6
-.Ladd:	ldrex	r2,[r0]
-	add	r3,r2,r1
-	strex	r2,r3,[r0]
-	cmp	r2,#0
-	bne	.Ladd
-	mov	r0,r3
-	bx	lr
-#else
-	stmdb	sp!,{r4,r5,r6,lr}
-	ldr	r2,.Lspinlock
-	adr	r3,.Lspinlock
-	mov	r4,r0
-	mov	r5,r1
-	add	r6,r3,r2	@ &spinlock
-	b	.+8
-.Lspin:	bl	sched_yield
-	mov	r0,#-1
-	swp	r0,r0,[r6]
-	cmp	r0,#0
-	bne	.Lspin
-
-	ldr	r2,[r4]
-	add	r2,r2,r5
-	str	r2,[r4]
-	str	r0,[r6]		@ release spinlock
-	ldmia	sp!,{r4,r5,r6,lr}
-	tst	lr,#1
-	moveq	pc,lr
-.word	0xe12fff1e	@ bx	lr
-#endif
-.size	OPENSSL_atomic_add,.-OPENSSL_atomic_add
-
 #if __ARM_ARCH__>=7
 .arch	armv7-a
 .fpu	neon
@@ -102,64 +65,5 @@ _armv8_pmull_probe:
 .size	_armv8_pmull_probe,.-_armv8_pmull_probe
 #endif
 
-.globl	OPENSSL_wipe_cpu
-.type	OPENSSL_wipe_cpu,%function
-OPENSSL_wipe_cpu:
-#if __ARM_ARCH__>=7
-	ldr	r0,.LOPENSSL_armcap
-	adr	r1,.LOPENSSL_armcap
-	ldr	r0,[r1,r0]
-#ifdef	__APPLE__
-	ldr	r0,[r0]
-#endif
-#endif
-	eor	r2,r2,r2
-	eor	r3,r3,r3
-	eor	ip,ip,ip
-#if __ARM_ARCH__>=7
-	tst	r0,#1
-	beq	.Lwipe_done
-	veor	q0, q0, q0
-	veor	q1, q1, q1
-	veor	q2, q2, q2
-	veor	q3, q3, q3
-	veor	q8, q8, q8
-	veor	q9, q9, q9
-	veor	q10, q10, q10
-	veor	q11, q11, q11
-	veor	q12, q12, q12
-	veor	q13, q13, q13
-	veor	q14, q14, q14
-	veor	q15, q15, q15
-.Lwipe_done:
-#endif
-	mov	r0,sp
-#if __ARM_ARCH__>=5
-	bx	lr
-#else
-	tst	lr,#1
-	moveq	pc,lr
-.word	0xe12fff1e	@ bx	lr
-#endif
-.size	OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
-
-.align	5
-#if __ARM_ARCH__>=7
-.LOPENSSL_armcap:
-.word	OPENSSL_armcap_P-.
-#endif
-#if __ARM_ARCH__>=6
-.align	5
-#else
-.Lspinlock:
-.word	atomic_add_spinlock-.Lspinlock
-.align	5
-
-.data
-.align	2
-atomic_add_spinlock:
-.word	0
-#endif
-
 .comm	OPENSSL_armcap_P,4,4
 .hidden	OPENSSL_armcap_P
-- 
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