update sources to v12.2.3

[ceph.git] / ceph / src / boost / libs / context / src / asm / jump_i386_ms_pe_masm.asm

diff --git a/ceph/src/boost/libs/context/src/asm/jump_i386_ms_pe_masm.asm b/ceph/src/boost/libs/context/src/asm/jump_i386_ms_pe_masm.asm
index 7d0ebdf34b4dbfe5debf8be9ed7ca4dc495e047b..7a9e848f1c3f4d878ddcc45d0a1c632064b21096 100644 (file)
--- a/ceph/src/boost/libs/context/src/asm/jump_i386_ms_pe_masm.asm
+++ b/ceph/src/boost/libs/context/src/asm/jump_i386_ms_pe_masm.asm
@@ -9,14 +9,14 @@
 ;  ---------------------------------------------------------------------------------
 ;  |    0h   |   04h   |   08h   |   0ch   |   010h  |   014h  |   018h  |   01ch  |
 ;  ---------------------------------------------------------------------------------
-;  | fc_strg |fc_deallo|  limit  |   base  |  fc_seh |   EDI   |   ESI   |   EBX   |
+;  | fc_mxcsr|fc_x87_cw| fc_strg |fc_deallo|  limit  |   base  |  fc_seh |   EDI   |
 ;  ---------------------------------------------------------------------------------
 ;  ---------------------------------------------------------------------------------
 ;  |    8    |    9    |   10    |    11   |    12   |    13   |    14   |    15   |
 ;  ---------------------------------------------------------------------------------
 ;  |   020h  |  024h   |  028h   |   02ch  |   030h  |   034h  |   038h  |   03ch  |
 ;  ---------------------------------------------------------------------------------
-;  |   EBP   |   EIP   |    to   |   data  |         |  EH NXT |SEH HNDLR|         |
+;  |   ESI   |   EBX   |   EBP   |   EIP   |    to   |   data  |  EH NXT |SEH HNDLR|
 ;  ---------------------------------------------------------------------------------
 
 .386
@@ -25,80 +25,92 @@
 .code
 
 jump_fcontext PROC BOOST_CONTEXT_EXPORT
-    push  ebp  ; save EBP 
-    push  ebx  ; save EBX 
-    push  esi  ; save ESI 
-    push  edi  ; save EDI 
+    ; prepare stack
+    lea  esp, [esp-02ch]
+
+IFNDEF BOOST_USE_TSX
+    ; save MMX control- and status-word
+    stmxcsr  [esp]
+    ; save x87 control-word
+    fnstcw  [esp+04h]
+ENDIF
 
     assume  fs:nothing
     ; load NT_TIB into ECX
     mov  edx, fs:[018h]
     assume  fs:error
-
-    ; load current SEH exception list
-    mov  eax, [edx]
-    push  eax
-
-    ; load current stack base
-    mov  eax, [edx+04h]
-    push  eax
-
-    ; load current stack limit
-    mov  eax, [edx+08h]
-    push  eax
-
+    ; load fiber local storage
+    mov  eax, [edx+010h]
+    mov  [esp+08h], eax
     ; load current deallocation stack
     mov  eax, [edx+0e0ch]
-    push  eax
+    mov  [esp+0ch], eax
+    ; load current stack limit
+    mov  eax, [edx+08h]
+    mov  [esp+010h], eax
+    ; load current stack base
+    mov  eax, [edx+04h]
+    mov  [esp+014h], eax
+    ; load current SEH exception list
+    mov  eax, [edx]
+    mov  [esp+018h], eax
 
-    ; load fiber local storage
-    mov  eax, [edx+010h]
-    push  eax
+    mov  [esp+01ch], edi  ; save EDI 
+    mov  [esp+020h], esi  ; save ESI 
+    mov  [esp+024h], ebx  ; save EBX 
+    mov  [esp+028h], ebp  ; save EBP 
 
     ; store ESP (pointing to context-data) in EAX
     mov  eax, esp
 
     ; firstarg of jump_fcontext() == fcontext to jump to
-    mov  ecx, [esp+028h]
+    mov  ecx, [esp+030h]
     
-    ; restore ESP (pointing to context-data) from EAX
+    ; restore ESP (pointing to context-data) from ECX
     mov  esp, ecx
 
+IFNDEF BOOST_USE_TSX
+    ; restore MMX control- and status-word
+    ldmxcsr  [esp]
+    ; restore x87 control-word
+    fldcw  [esp+04h]
+ENDIF
+
     assume  fs:nothing
     ; load NT_TIB into EDX
     mov  edx, fs:[018h]
     assume  fs:error
-
     ; restore fiber local storage
-    pop  ecx
+    mov  ecx, [esp+08h]
     mov  [edx+010h], ecx
-
     ; restore current deallocation stack
-    pop  ecx
+    mov  ecx, [esp+0ch]
     mov  [edx+0e0ch], ecx
-
     ; restore current stack limit
-    pop  ecx
+    mov  ecx, [esp+010h]
     mov  [edx+08h], ecx
-
     ; restore current stack base
-    pop  ecx
+    mov  ecx, [esp+014h]
     mov  [edx+04h], ecx
-
     ; restore current SEH exception list
-    pop  ecx
+    mov  ecx, [esp+018h]
     mov  [edx], ecx
 
-    pop  edi  ; save EDI 
-    pop  esi  ; save ESI 
-    pop  ebx  ; save EBX 
-    pop  ebp  ; save EBP
+    mov  ecx, [esp+02ch]  ; restore EIP
+
+    mov  edi, [esp+01ch]  ; restore EDI 
+    mov  esi, [esp+020h]  ; restore ESI 
+    mov  ebx, [esp+024h]  ; restore EBX 
+    mov  ebp, [esp+028h]  ; restore EBP 
+
+    ; prepare stack
+    lea  esp, [esp+030h]
 
     ; return transfer_t
     ; FCTX == EAX, DATA == EDX
-    mov  edx, [eax+02ch]
+    mov  edx, [eax+034h]
 
     ; jump to context
-    ret
+    jmp ecx
 jump_fcontext ENDP
 END