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author | William Joye <wjoye@cfa.harvard.edu> | 2017-05-02 16:06:33 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2017-05-02 16:06:33 (GMT) |
commit | 335ca9eb0d2337314cbbec5eb19f9aeea0eaaca7 (patch) | |
tree | 0a0e8d65ee114cb89f58c3159488dd5523123309 /openssl/crypto/armv4cpuid.S | |
parent | a90d8737b83a4a5bb2bf91a9bdf48a3dad4b51fa (diff) | |
download | blt-335ca9eb0d2337314cbbec5eb19f9aeea0eaaca7.zip blt-335ca9eb0d2337314cbbec5eb19f9aeea0eaaca7.tar.gz blt-335ca9eb0d2337314cbbec5eb19f9aeea0eaaca7.tar.bz2 |
initial commit
Diffstat (limited to 'openssl/crypto/armv4cpuid.S')
-rw-r--r-- | openssl/crypto/armv4cpuid.S | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/openssl/crypto/armv4cpuid.S b/openssl/crypto/armv4cpuid.S new file mode 100644 index 0000000..65010ae --- /dev/null +++ b/openssl/crypto/armv4cpuid.S @@ -0,0 +1,209 @@ +#include "arm_arch.h" + +.text +.code 32 + +.align 5 +.global 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-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-r6,lr} + tst lr,#1 + moveq pc,lr + .word 0xe12fff1e @ bx lr +#endif +.size OPENSSL_atomic_add,.-OPENSSL_atomic_add + +.global OPENSSL_cleanse +.type OPENSSL_cleanse,%function +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 +.size OPENSSL_cleanse,.-OPENSSL_cleanse + +#if __ARM_MAX_ARCH__>=7 +.arch armv7-a +.fpu neon + +.align 5 +.global _armv7_neon_probe +.type _armv7_neon_probe,%function +_armv7_neon_probe: + vorr q0,q0,q0 + bx lr +.size _armv7_neon_probe,.-_armv7_neon_probe + +.global _armv7_tick +.type _armv7_tick,%function +_armv7_tick: + mrrc p15,1,r0,r1,c14 @ CNTVCT + bx lr +.size _armv7_tick,.-_armv7_tick + +.global _armv8_aes_probe +.type _armv8_aes_probe,%function +_armv8_aes_probe: + .byte 0x00,0x03,0xb0,0xf3 @ aese.8 q0,q0 + bx lr +.size _armv8_aes_probe,.-_armv8_aes_probe + +.global _armv8_sha1_probe +.type _armv8_sha1_probe,%function +_armv8_sha1_probe: + .byte 0x40,0x0c,0x00,0xf2 @ sha1c.32 q0,q0,q0 + bx lr +.size _armv8_sha1_probe,.-_armv8_sha1_probe + +.global _armv8_sha256_probe +.type _armv8_sha256_probe,%function +_armv8_sha256_probe: + .byte 0x40,0x0c,0x00,0xf3 @ sha256h.32 q0,q0,q0 + bx lr +.size _armv8_sha256_probe,.-_armv8_sha256_probe +.global _armv8_pmull_probe +.type _armv8_pmull_probe,%function +_armv8_pmull_probe: + .byte 0x00,0x0e,0xa0,0xf2 @ vmull.p64 q0,d0,d0 + bx lr +.size _armv8_pmull_probe,.-_armv8_pmull_probe +#endif + +.global OPENSSL_wipe_cpu +.type OPENSSL_wipe_cpu,%function +OPENSSL_wipe_cpu: +#if __ARM_MAX_ARCH__>=7 + ldr r0,.LOPENSSL_armcap + adr r1,.LOPENSSL_armcap + ldr r0,[r1,r0] +#endif + eor r2,r2,r2 + eor r3,r3,r3 + eor ip,ip,ip +#if __ARM_MAX_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 + +.global OPENSSL_instrument_bus +.type OPENSSL_instrument_bus,%function +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 +.size OPENSSL_instrument_bus,.-OPENSSL_instrument_bus + +.global OPENSSL_instrument_bus2 +.type OPENSSL_instrument_bus2,%function +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 +.size OPENSSL_instrument_bus2,.-OPENSSL_instrument_bus2 + +.align 5 +#if __ARM_MAX_ARCH__>=7 +.LOPENSSL_armcap: +.word OPENSSL_armcap_P-.LOPENSSL_armcap +#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 |