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-rw-r--r--java/openjdk6/files/patch-sharedRuntime_x86_64.cpp76
1 files changed, 0 insertions, 76 deletions
diff --git a/java/openjdk6/files/patch-sharedRuntime_x86_64.cpp b/java/openjdk6/files/patch-sharedRuntime_x86_64.cpp
deleted file mode 100644
index 5e0a35091546..000000000000
--- a/java/openjdk6/files/patch-sharedRuntime_x86_64.cpp
+++ /dev/null
@@ -1,76 +0,0 @@
-
-# HG changeset patch
-# User never
-# Date 1320440131 25200
-# Node ID 1feb272af3a704c03d544ef6c606db32049e492c
-# Parent 448691f285a54cd944c45c79ff0ba13ec8e3e205
-6636110: unaligned stackpointer leads to crash during deoptimization
-Reviewed-by: never, kvn
-Contributed-by: Andreas Schoesser <andreas.schoesser@sap.com>
-
---- hotspot/src/cpu/x86/vm/sharedRuntime_x86_64.cpp.orig Thu Nov 03 04:12:49 2011 -0700
-+++ hotspot/src/cpu/x86/vm/sharedRuntime_x86_64.cpp Fri Nov 04 13:55:31 2011 -0700
-@@ -2797,17 +2797,25 @@ void SharedRuntime::generate_deopt_blob(
- // void Deoptimization::unpack_frames(JavaThread* thread, int exec_mode)
-
- // Use rbp because the frames look interpreted now
-- __ set_last_Java_frame(noreg, rbp, NULL);
--
-+ // Save "the_pc" since it cannot easily be retrieved using the last_java_SP after we aligned SP.
-+ // Don't need the precise return PC here, just precise enough to point into this code blob.
-+ address the_pc = __ pc();
-+ __ set_last_Java_frame(noreg, rbp, the_pc);
-+
-+ __ andptr(rsp, -(StackAlignmentInBytes)); // Fix stack alignment as required by ABI
- __ mov(c_rarg0, r15_thread);
- __ movl(c_rarg1, r14); // second arg: exec_mode
- __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::unpack_frames)));
-+ // Revert SP alignment after call since we're going to do some SP relative addressing below
-+ __ movptr(rsp, Address(r15_thread, JavaThread::last_Java_sp_offset()));
-
- // Set an oopmap for the call site
-- oop_maps->add_gc_map(__ pc() - start,
-+ // Use the same PC we used for the last java frame
-+ oop_maps->add_gc_map(the_pc - start,
- new OopMap( frame_size_in_words, 0 ));
-
-- __ reset_last_Java_frame(true, false);
-+ // Clear fp AND pc
-+ __ reset_last_Java_frame(true, true);
-
- // Collect return values
- __ movdbl(xmm0, Address(rsp, RegisterSaver::xmm0_offset_in_bytes()));
-@@ -2968,7 +2976,10 @@ void SharedRuntime::generate_uncommon_tr
- // Prolog
-
- // Use rbp because the frames look interpreted now
-- __ set_last_Java_frame(noreg, rbp, NULL);
-+ // Save "the_pc" since it cannot easily be retrieved using the last_java_SP after we aligned SP.
-+ // Don't need the precise return PC here, just precise enough to point into this code blob.
-+ address the_pc = __ pc();
-+ __ set_last_Java_frame(noreg, rbp, the_pc);
-
- // Call C code. Need thread but NOT official VM entry
- // crud. We cannot block on this call, no GC can happen. Call should
-@@ -2977,14 +2988,17 @@ void SharedRuntime::generate_uncommon_tr
- //
- // BasicType unpack_frames(JavaThread* thread, int exec_mode);
-
-+ __ andptr(rsp, -(StackAlignmentInBytes)); // Align SP as required by ABI
- __ mov(c_rarg0, r15_thread);
- __ movl(c_rarg1, Deoptimization::Unpack_uncommon_trap);
- __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::unpack_frames)));
-
- // Set an oopmap for the call site
-- oop_maps->add_gc_map(__ pc() - start, new OopMap(SimpleRuntimeFrame::framesize, 0));
--
-- __ reset_last_Java_frame(true, false);
-+ // Use the same PC we used for the last java frame
-+ oop_maps->add_gc_map(the_pc - start, new OopMap(SimpleRuntimeFrame::framesize, 0));
-+
-+ // Clear fp AND pc
-+ __ reset_last_Java_frame(true, true);
-
- // Pop self-frame.
- __ leave(); // Epilog
-