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Set context/membase registers to rsi/rdi respectively.

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Use offsetof for the backend thunks.
This commit is contained in:
Dr. Chat
2016-08-26 11:00:42 -05:00
parent fbedb915b6
commit 7683069f6c
6 changed files with 235 additions and 239 deletions
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203
src/xenia/cpu/backend/x64/x64_stack_layout.h
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@@ -10,6 +10,7 @@
#ifndef XENIA_CPU_BACKEND_X64_X64_STACK_LAYOUT_H_
#define XENIA_CPU_BACKEND_X64_X64_STACK_LAYOUT_H_
#include "xenia/base/vec128.h"
#include "xenia/cpu/backend/x64/x64_backend.h"
#include "xenia/cpu/backend/x64/x64_emitter.h"
@@ -18,105 +19,115 @@ namespace cpu {
namespace backend {
namespace x64 {
/**
* Stack Layout
* ----------------------------
* NOTE: stack must always be 16b aligned.
*
* Thunk stack:
* +------------------+
* | arg temp, 3 * 8 | rsp + 0
* | |
* | |
* +------------------+
* | scratch, 16b | rsp + 24
* | |
* +------------------+
* | rbx | rsp + 40
* +------------------+
* | rcx / context | rsp + 48
* +------------------+
* | rbp | rsp + 56
* +------------------+
* | rsi | rsp + 64
* +------------------+
* | rdi | rsp + 72
* +------------------+
* | r12 | rsp + 80
* +------------------+
* | r13 | rsp + 88
* +------------------+
* | r14 | rsp + 96
* +------------------+
* | r15 | rsp + 104
* +------------------+
* | xmm6/0 | rsp + 112
* | |
* +------------------+
* | xmm7/1 | rsp + 128
* | |
* +------------------+
* | xmm8/2 | rsp + 144
* | |
* +------------------+
* | xmm9/3 | rsp + 160
* | |
* +------------------+
* | xmm10/4 | rsp + 176
* | |
* +------------------+
* | xmm11/5 | rsp + 192
* | |
* +------------------+
* | xmm12 | rsp + 208
* | |
* +------------------+
* | xmm13 | rsp + 224
* | |
* +------------------+
* | xmm14 | rsp + 240
* | |
* +------------------+
* | xmm15 | rsp + 256
* | |
* +------------------+
* | scratch, 8b | rsp + 272
* | |
* +------------------+
* | (return address) | rsp + 280
* +------------------+
* | (rcx home) | rsp + 288
* +------------------+
* | (rdx home) | rsp + 296
* +------------------+
*
*
* Guest stack:
* +------------------+
* | arg temp, 3 * 8 | rsp + 0
* | |
* | |
* +------------------+
* | scratch, 48b | rsp + 32
* | |
* +------------------+
* | rcx / context | rsp + 80
* +------------------+
* | guest ret addr | rsp + 88
* +------------------+
* | call ret addr | rsp + 96
* +------------------+
* ... locals ...
* +------------------+
* | (return address) |
* +------------------+
*
*/
class StackLayout {
public:
static const size_t THUNK_STACK_SIZE = 280;
/**
* Stack Layout
* ----------------------------
* NOTE: stack must always be 16b aligned.
*
* Thunk stack:
* +------------------+
* | arg temp, 3 * 8 | rsp + 0
* | |
* | |
* +------------------+
* | scratch, 16b | rsp + 24
* | |
* +------------------+
* | rbx | rsp + 40
* +------------------+
* | rcx / context | rsp + 48
* +------------------+
* | rbp | rsp + 56
* +------------------+
* | rsi | rsp + 64
* +------------------+
* | rdi | rsp + 72
* +------------------+
* | r12 | rsp + 80
* +------------------+
* | r13 | rsp + 88
* +------------------+
* | r14 | rsp + 96
* +------------------+
* | r15 | rsp + 104
* +------------------+
* | xmm6/0 | rsp + 112
* | |
* +------------------+
* | xmm7/1 | rsp + 128
* | |
* +------------------+
* | xmm8/2 | rsp + 144
* | |
* +------------------+
* | xmm9/3 | rsp + 160
* | |
* +------------------+
* | xmm10/4 | rsp + 176
* | |
* +------------------+
* | xmm11/5 | rsp + 192
* | |
* +------------------+
* | xmm12 | rsp + 208
* | |
* +------------------+
* | xmm13 | rsp + 224
* | |
* +------------------+
* | xmm14 | rsp + 240
* | |
* +------------------+
* | xmm15 | rsp + 256
* | |
* +------------------+
* | scratch, 8b | rsp + 272
* | |
* +------------------+
* | (return address) | rsp + 280
* +------------------+
* | (rcx home) | rsp + 288
* +------------------+
* | (rdx home) | rsp + 296
* +------------------+
*/
XEPACKEDSTRUCT(Thunk, {
uint64_t arg_temp[3];
uint8_t scratch[16];
uint64_t r[10];
vec128_t xmm[10];
uint64_t dummy;
});
static_assert(sizeof(Thunk) % 16 == 0,
"sizeof(Thunk) must be a multiple of 16!");
static const size_t THUNK_STACK_SIZE = sizeof(Thunk) + 8;
/**
*
*
* Guest stack:
* +------------------+
* | arg temp, 3 * 8 | rsp + 0
* | |
* | |
* +------------------+
* | scratch, 48b | rsp + 32
* | |
* +------------------+
* | rcx / context | rsp + 80
* +------------------+
* | guest ret addr | rsp + 88
* +------------------+
* | call ret addr | rsp + 96
* +------------------+
* ... locals ...
* +------------------+
* | (return address) |
* +------------------+
*
*/
static const size_t GUEST_STACK_SIZE = 104;
static const size_t GUEST_CTX_HOME = 80;
static const size_t GUEST_RET_ADDR = 88;