update sources to v12.2.3

[ceph.git] / ceph / src / boost / libs / context / src / asm / make_i386_sysv_macho_gas.S

diff --git a/ceph/src/boost/libs/context/src/asm/make_i386_sysv_macho_gas.S b/ceph/src/boost/libs/context/src/asm/make_i386_sysv_macho_gas.S
index ceb1a218f5aeec711bc669280a818c854594bbf9..fdcdb7c80fbff1c1c53c3ddb99f42a145e3e0160 100644 (file)
--- a/ceph/src/boost/libs/context/src/asm/make_i386_sysv_macho_gas.S
+++ b/ceph/src/boost/libs/context/src/asm/make_i386_sysv_macho_gas.S
@@ -5,17 +5,24 @@
           http://www.boost.org/LICENSE_1_0.txt)
 */
 
-/*****************************************************************************************
- *                                                                                       *
- *  -----------------------------------------------------------------------------------  *
- *  |    0    |    1    |    2    |    3    |    4     |    5    |    6     |    7    |  *
- *  -----------------------------------------------------------------------------------  *
- *  |   0x0   |   0x4   |   0x8   |   0xc   |   0x10   |   0x14  |   0x18   |   0x1c  |  *
- *  -----------------------------------------------------------------------------------  *
- *  |   EDI   |   ESI   |   EBX   |   EBP   |   EIP    |  hidden |    to    |   data  |  *
- *  -----------------------------------------------------------------------------------  *
- *                                                                                       *
- *****************************************************************************************/
+/****************************************************************************************
+ *                                                                                      *
+ *  ----------------------------------------------------------------------------------  *
+ *  |    0    |    1    |    2    |    3    |    4     |    5    |    6    |    7    |  *
+ *  ----------------------------------------------------------------------------------  *
+ *  |   0x0   |   0x4   |   0x8   |   0xc   |   0x10   |   0x14  |   0x18  |   0x1c  |  *
+ *  ----------------------------------------------------------------------------------  *
+ *  | fc_mxcsr|fc_x87_cw|   EDI   |   ESI   |   EBX    |   EBP   |   EIP   |    to   |  *
+ *  ----------------------------------------------------------------------------------  *
+ *  ----------------------------------------------------------------------------------  *
+ *  |    8    |    9    |    10   |    11   |    12    |    13   |    14   |    15   |  *
+ *  ----------------------------------------------------------------------------------  *
+ *  |   0x20  |                                                                      |  *
+ *  ----------------------------------------------------------------------------------  *
+ *  |   data  |                                                                      |  *
+ *  ----------------------------------------------------------------------------------  *
+ *                                                                                      *
+ ****************************************************************************************/
 
 .text
 .globl _make_fcontext
@@ -25,24 +32,24 @@ _make_fcontext:
     movl  0x4(%esp), %eax
 
     /* reserve space for first argument of context-function
-       rax might already point to a 16byte border */
+       eax might already point to a 16byte border */
     leal  -0x8(%eax), %eax
 
     /* shift address in EAX to lower 16 byte boundary */
     andl  $-16, %eax
 
     /* reserve space for context-data on context-stack */
-    leal  -0x28(%eax), %eax
+    leal  -0x2c(%eax), %eax
 
-    /* thrid arg of make_fcontext() == address of context-function */
+    /* third arg of make_fcontext() == address of context-function */
     /* stored in EBX */
-    movl  0xc(%esp), %edx
-    movl  %edx, 0x8(%eax)
+    movl  0xc(%esp), %ecx
+    movl  %ecx, 0x10(%eax)
 
-    /* return transport_t */
-    /* FCTX == EDI, DATA == ESI */
-    leal  (%eax), %ecx
-    movl  %ecx, 0x14(%eax)
+    /* save MMX control- and status-word */
+    stmxcsr (%eax)
+    /* save x87 control-word */
+    fnstcw  0x4(%eax)
 
     /* compute abs address of label trampoline */
     call  1f
@@ -52,7 +59,7 @@ _make_fcontext:
     addl  $trampoline-1b, %ecx
     /* save address of trampoline as return address */
     /* will be entered after calling jump_fcontext() first time */
-    movl  %ecx, 0x10(%eax)
+    movl  %ecx, 0x18(%eax)
 
     /* compute abs address of label finish */
     call  2f
@@ -62,14 +69,14 @@ _make_fcontext:
     addl  $finish-2b, %ecx
     /* save address of finish as return-address for context-function */
     /* will be entered after context-function returns */
-    movl  %ecx, 0xc(%eax) 
+    movl  %ecx, 0x14(%eax) 
 
     ret /* return pointer to context-data */
 
 trampoline:
     /* move transport_t for entering context-function */
-    movl  %edi, (%esp)
-    movl  %esi, 0x4(%esp)
+    movl  %eax, (%esp)
+    movl  %edx, 0x4(%esp)
     pushl %ebp
     /* jump to context-function */
     jmp *%ebx