update sources to v12.2.3

[ceph.git] / ceph / src / boost / libs / context / src / asm / make_i386_ms_pe_masm.asm

diff --git a/ceph/src/boost/libs/context/src/asm/make_i386_ms_pe_masm.asm b/ceph/src/boost/libs/context/src/asm/make_i386_ms_pe_masm.asm
index 73a9c03d4ba4e72b1439322eaa5157d1d324d82f..5246465cb975bbf123627a46eb6ec3f16259e67a 100644 (file)
--- a/ceph/src/boost/libs/context/src/asm/make_i386_ms_pe_masm.asm
+++ b/ceph/src/boost/libs/context/src/asm/make_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
@@ -40,12 +40,17 @@ make_fcontext PROC BOOST_CONTEXT_EXPORT
     ; reserve space for context-data on context-stack
     ; on context-function entry: (ESP -0x4) % 8 == 0
     ; additional space is required for SEH
-    lea  eax, [eax-048h]
+    lea  eax, [eax-040h]
+
+    ; save MMX control- and status-word
+    stmxcsr  [eax]
+    ; save x87 control-word
+    fnstcw  [eax+04h]
 
     ; first arg of make_fcontext() == top of context-stack
     mov  ecx, [esp+04h]
     ; save top address of context stack as 'base'
-    mov  [eax+0ch], ecx
+    mov  [eax+014h], ecx
     ; second arg of make_fcontext() == size of context-stack
     mov  edx, [esp+08h]
     ; negate stack size for LEA instruction (== substraction)
@@ -53,29 +58,29 @@ make_fcontext PROC BOOST_CONTEXT_EXPORT
     ; compute bottom address of context stack (limit)
     lea  ecx, [ecx+edx]
     ; save bottom address of context-stack as 'limit'
-    mov  [eax+08h], ecx
+    mov  [eax+010h], ecx
     ; save bottom address of context-stack as 'dealloction stack'
-    mov  [eax+04h], ecx
+    mov  [eax+0ch], ecx
        ; set fiber-storage to zero
        xor  ecx, ecx
-    mov  [eax], ecx
+    mov  [eax+08h], ecx
 
     ; third arg of make_fcontext() == address of context-function
     ; stored in EBX
     mov  ecx, [esp+0ch]
-    mov  [eax+01ch], ecx
+    mov  [eax+024h], ecx
 
     ; compute abs address of label trampoline
     mov  ecx, trampoline
     ; save address of trampoline as return-address for context-function
     ; will be entered after calling jump_fcontext() first time
-    mov  [eax+024h], ecx
+    mov  [eax+02ch], ecx
 
     ; compute abs address of label finish
     mov  ecx, finish
-    ; save address of finish as return-address for context-function
+    ; save address of finish as return-address for context-function in EBP
     ; will be entered after context-function returns
-    mov  [eax+020h], ecx
+    mov  [eax+028h], ecx
 
     ; traverse current seh chain to get the last exception handler installed by Windows
     ; note that on Windows Server 2008 and 2008 R2, SEHOP is activated by default
@@ -103,15 +108,15 @@ found:
     ; load 'handler' member of SEH == address of last SEH handler installed by Windows
     mov  ecx, [ecx+04h]
     ; save address in ECX as SEH handler for context
-    mov  [eax+038h], ecx
+    mov  [eax+03ch], ecx
     ; set ECX to -1
     mov  ecx, 0ffffffffh
     ; save ECX as next SEH item
-    mov  [eax+034h], ecx
+    mov  [eax+038h], ecx
     ; load address of next SEH item
-    lea  ecx, [eax+034h]
+    lea  ecx, [eax+038h]
     ; save next SEH
-    mov  [eax+010h], ecx
+    mov  [eax+018h], ecx
 
     ret ; return pointer to context-data