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6741940: Nonvolatile XMM registers not preserved across JNI calls

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Save xmm6-xmm15 in call stub on win64

Reviewed-by: kvn, never
This commit is contained in:
Igor Veresov 2011-03-29 17:35:34 -07:00
parent 1c5ff7f80a
commit 546f3df880
2 changed files with 28 additions and 7 deletions
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4
hotspot/src/cpu/x86/vm/frame_x86.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -125,7 +125,7 @@
// Entry frames
#ifdef AMD64
#ifdef _WIN64
entry_frame_after_call_words = 8,
entry_frame_after_call_words = 28,
entry_frame_call_wrapper_offset = 2,
arg_reg_save_area_bytes = 32, // Register argument save area

31
hotspot/src/cpu/x86/vm/stubGenerator_x86_64.cpp
View File

@ -144,8 +144,11 @@ class StubGenerator: public StubCodeGenerator {
// [ return_from_Java ] <--- rsp
// [ argument word n ]
// ...
// -8 [ argument word 1 ]
// -7 [ saved r15 ] <--- rsp_after_call
// -28 [ argument word 1 ]
// -27 [ saved xmm15 ] <--- rsp_after_call
// [ saved xmm7-xmm14 ]
// -9 [ saved xmm6 ] (each xmm register takes 2 slots)
// -7 [ saved r15 ]
// -6 [ saved r14 ]
// -5 [ saved r13 ]
// -4 [ saved r12 ]
@ -169,8 +172,11 @@ class StubGenerator: public StubCodeGenerator {
// Call stub stack layout word offsets from rbp
enum call_stub_layout {
#ifdef _WIN64
rsp_after_call_off = -7,
r15_off = rsp_after_call_off,
xmm_save_first = 6, // save from xmm6
xmm_save_last = 15, // to xmm15
xmm_save_base = -9,
rsp_after_call_off = xmm_save_base - 2 * (xmm_save_last - xmm_save_first), // -27
r15_off = -7,
r14_off = -6,
r13_off = -5,
r12_off = -4,
@ -208,6 +214,13 @@ class StubGenerator: public StubCodeGenerator {
#endif
};
#ifdef _WIN64
Address xmm_save(int reg) {
assert(reg >= xmm_save_first && reg <= xmm_save_last, "XMM register number out of range");
return Address(rbp, (xmm_save_base - (reg - xmm_save_first) * 2) * wordSize);
}
#endif
address generate_call_stub(address& return_address) {
assert((int)frame::entry_frame_after_call_words == -(int)rsp_after_call_off + 1 &&
(int)frame::entry_frame_call_wrapper_offset == (int)call_wrapper_off,
@ -256,8 +269,11 @@ class StubGenerator: public StubCodeGenerator {
__ movptr(r13_save, r13);
__ movptr(r14_save, r14);
__ movptr(r15_save, r15);
#ifdef _WIN64
for (int i = 6; i <= 15; i++) {
__ movdqu(xmm_save(i), as_XMMRegister(i));
}
const Address rdi_save(rbp, rdi_off * wordSize);
const Address rsi_save(rbp, rsi_off * wordSize);
@ -360,6 +376,11 @@ class StubGenerator: public StubCodeGenerator {
#endif
// restore regs belonging to calling function
#ifdef _WIN64
for (int i = 15; i >= 6; i--) {
__ movdqu(as_XMMRegister(i), xmm_save(i));
}
#endif
__ movptr(r15, r15_save);
__ movptr(r14, r14_save);
__ movptr(r13, r13_save);