From 5837e90f08ffcf5ad84933793bc285630018ce26 Mon Sep 17 00:00:00 2001 From: Andy Polyakov Date: Mon, 11 May 2015 11:50:29 +0200 Subject: [PATCH] Add iOS-specific armv4cpud.S module. Normally it would be generated from a perlasm module, but doing so would affect existing armv4cpuid.S, which in turn would formally void previously validated platforms. Hense separate module is generated. Reviewed-by: Dr. Stephen Henson --- crypto/armv4cpuid_ios.S | 210 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 crypto/armv4cpuid_ios.S diff --git a/crypto/armv4cpuid_ios.S b/crypto/armv4cpuid_ios.S new file mode 100644 index 0000000000..cce9a7902b --- /dev/null +++ b/crypto/armv4cpuid_ios.S @@ -0,0 +1,210 @@ +#include "arm_arch.h" + +.text +.code 32 + +.align 5 +.globl _OPENSSL_atomic_add + +_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 + + +.globl _OPENSSL_cleanse + +_OPENSSL_cleanse: + eor ip,ip,ip + cmp r1,#7 + subhs r1,r1,#4 + bhs Lot + cmp r1,#0 + beq Lcleanse_done +Little: + strb ip,[r0],#1 + subs r1,r1,#1 + bhi Little + b Lcleanse_done + +Lot: tst r0,#3 + beq Laligned + strb ip,[r0],#1 + sub r1,r1,#1 + b Lot +Laligned: + str ip,[r0],#4 + subs r1,r1,#4 + bhs Laligned + adds r1,r1,#4 + bne Little +Lcleanse_done: +#if __ARM_ARCH__>=5 + bx lr +#else + tst lr,#1 + moveq pc,lr +.word 0xe12fff1e @ bx lr +#endif + + + + +.align 5 +.globl __armv7_neon_probe + +__armv7_neon_probe: + vorr q0,q0,q0 + bx lr + + +.globl __armv7_tick + +__armv7_tick: +#ifdef __APPLE__ + mrrc p15,0,r0,r1,c14 @ CNTPCT +#else + mrrc p15,1,r0,r1,c14 @ CNTVCT +#endif + bx lr + + +.globl __armv8_aes_probe + +__armv8_aes_probe: +.byte 0x00,0x03,0xb0,0xf3 @ aese.8 q0,q0 + bx lr + + +.globl __armv8_sha1_probe + +__armv8_sha1_probe: +.byte 0x40,0x0c,0x00,0xf2 @ sha1c.32 q0,q0,q0 + bx lr + + +.globl __armv8_sha256_probe + +__armv8_sha256_probe: +.byte 0x40,0x0c,0x00,0xf3 @ sha256h.32 q0,q0,q0 + bx lr + +.globl __armv8_pmull_probe + +__armv8_pmull_probe: +.byte 0x00,0x0e,0xa0,0xf2 @ vmull.p64 q0,d0,d0 + bx lr + +.globl _OPENSSL_wipe_cpu + +_OPENSSL_wipe_cpu: + ldr r0,LOPENSSL_armcap + adr r1,LOPENSSL_armcap + ldr r0,[r1,r0] +#ifdef __APPLE__ + ldr r0,[r0] +#endif + eor r2,r2,r2 + eor r3,r3,r3 + eor ip,ip,ip + 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: + mov r0,sp +#if __ARM_ARCH__>=5 + bx lr +#else + tst lr,#1 + moveq pc,lr +.word 0xe12fff1e @ bx lr +#endif + + +.globl _OPENSSL_instrument_bus + +_OPENSSL_instrument_bus: + eor r0,r0,r0 +#if __ARM_ARCH__>=5 + bx lr +#else + tst lr,#1 + moveq pc,lr +.word 0xe12fff1e @ bx lr +#endif + + +.globl _OPENSSL_instrument_bus2 + +_OPENSSL_instrument_bus2: + eor r0,r0,r0 +#if __ARM_ARCH__>=5 + bx lr +#else + tst lr,#1 + moveq pc,lr +.word 0xe12fff1e @ bx lr +#endif + + +.align 5 +LOPENSSL_armcap: +.word OPENSSL_armcap_P-. +#if __ARM_ARCH__>=6 +.align 5 +#else +Lspinlock: +.word atomic_add_spinlock-Lspinlock +.align 5 + +.data +.align 2 +atomic_add_spinlock: +.word +#endif + +.comm _OPENSSL_armcap_P,4 +.non_lazy_symbol_pointer +OPENSSL_armcap_P: +.indirect_symbol _OPENSSL_armcap_P +.long 0 +.private_extern _OPENSSL_armcap_P -- 2.25.1