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8167595: AArch64: SEGV in stub code cipherBlockChaining_decryptAESCrypt

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Reviewed-by: aph
This commit is contained in:
Ningsheng Jian 2016-10-12 12:24:41 +00:00 committed by Andrew Haley
parent 810f5aada6
commit 6a9dfd0048
1 changed files with 17 additions and 8 deletions
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25
hotspot/src/cpu/aarch64/vm/stubGenerator_aarch64.cpp
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@ -2743,7 +2743,7 @@ class StubGenerator: public StubCodeGenerator {
__ align(CodeEntryAlignment);
StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_encryptAESCrypt");
Label L_loadkeys_44, L_loadkeys_52, L_aes_loop, L_rounds_44, L_rounds_52;
Label L_loadkeys_44, L_loadkeys_52, L_aes_loop, L_rounds_44, L_rounds_52, _L_finish;
const Register from = c_rarg0; // source array address
const Register to = c_rarg1; // destination array address
@ -2754,9 +2754,12 @@ class StubGenerator: public StubCodeGenerator {
const Register keylen = rscratch1;
address start = __ pc();
__ enter();
__ mov(rscratch2, len_reg);
__ subsw(rscratch2, len_reg, zr);
__ br(Assembler::LE, _L_finish);
__ ldrw(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT)));
__ ld1(v0, __ T16B, rvec);
@ -2814,11 +2817,13 @@ class StubGenerator: public StubCodeGenerator {
__ eor(v0, __ T16B, v0, v31);
__ st1(v0, __ T16B, __ post(to, 16));
__ sub(len_reg, len_reg, 16);
__ cbnz(len_reg, L_aes_loop);
__ subw(len_reg, len_reg, 16);
__ cbnzw(len_reg, L_aes_loop);
__ st1(v0, __ T16B, rvec);
__ BIND(_L_finish);
__ mov(r0, rscratch2);
__ leave();
@ -2844,7 +2849,7 @@ class StubGenerator: public StubCodeGenerator {
__ align(CodeEntryAlignment);
StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_decryptAESCrypt");
Label L_loadkeys_44, L_loadkeys_52, L_aes_loop, L_rounds_44, L_rounds_52;
Label L_loadkeys_44, L_loadkeys_52, L_aes_loop, L_rounds_44, L_rounds_52, _L_finish;
const Register from = c_rarg0; // source array address
const Register to = c_rarg1; // destination array address
@ -2855,9 +2860,12 @@ class StubGenerator: public StubCodeGenerator {
const Register keylen = rscratch1;
address start = __ pc();
__ enter();
__ mov(rscratch2, len_reg);
__ subsw(rscratch2, len_reg, zr);
__ br(Assembler::LE, _L_finish);
__ ldrw(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT)));
__ ld1(v2, __ T16B, rvec);
@ -2920,11 +2928,12 @@ class StubGenerator: public StubCodeGenerator {
__ st1(v0, __ T16B, __ post(to, 16));
__ orr(v2, __ T16B, v1, v1);
__ sub(len_reg, len_reg, 16);
__ cbnz(len_reg, L_aes_loop);
__ subw(len_reg, len_reg, 16);
__ cbnzw(len_reg, L_aes_loop);
__ st1(v2, __ T16B, rvec);
__ BIND(_L_finish);
__ mov(r0, rscratch2);
__ leave();