41 lines
1.8 KiB
Diff
41 lines
1.8 KiB
Diff
From f9f94ca5422ae79bf4ed90f41b7698febc6bed24 Mon Sep 17 00:00:00 2001
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Date: Fri, 12 Jul 2019 15:26:27 +0000
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Subject: [PATCH] Backport of JDK-8203699: java/lang/invoke/SpecialInterfaceCall fails with SIGILL on aarch64
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summary: Get super_klass value into r0 to make check in VerifyMethodHandles success
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LLT: jdk/test/java/lang/invoke/lookup/TestDefenderMethodLookup.java
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Bug url: https://bugs.openjdk.java.net/browse/JDK-8203699
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---
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.../src/cpu/aarch64/vm/macroAssembler_aarch64.cpp | 6 +-
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1 files changed, 5 insertions(+), 1 deletion(-)
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diff --git a/hotspot/src/cpu/aarch64/vm/macroAssembler_aarch64.cpp b/hotspot/src/cpu/aarch64/vm/macroAssembler_aarch64.cpp
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index 42b732f37a..4659d628db 100644
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--- a/hotspot/src/cpu/aarch64/vm/macroAssembler_aarch64.cpp
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+++ b/hotspot/src/cpu/aarch64/vm/macroAssembler_aarch64.cpp
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@@ -1208,7 +1208,6 @@ void MacroAssembler::check_klass_subtype_slow_path(Register sub_klass,
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assert(sub_klass != r0, "killed reg"); // killed by mov(r0, super)
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assert(sub_klass != r2, "killed reg"); // killed by lea(r2, &pst_counter)
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- // Get super_klass value into r0 (even if it was in r5 or r2).
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RegSet pushed_registers;
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if (!IS_A_TEMP(r2)) pushed_registers += r2;
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if (!IS_A_TEMP(r5)) pushed_registers += r5;
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@@ -1219,6 +1218,11 @@ void MacroAssembler::check_klass_subtype_slow_path(Register sub_klass,
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push(pushed_registers, sp);
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+ // Get super_klass value into r0 (even if it was in r5 or r2)
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+ if (super_klass != r0) {
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+ mov(r0, super_klass);
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+ }
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+
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#ifndef PRODUCT
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mov(rscratch2, (address)&SharedRuntime::_partial_subtype_ctr);
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Address pst_counter_addr(rscratch2);
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diff --git a/jdk/test/java/lang/invoke/lookup/TestDefenderMethodLookup.java b/jdk/test/java/lang/invoke/lookup/TestDefenderMethodLookup.java
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--
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2.12.3
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