X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=doc%2Fstack_frames.txt;h=700c2e54ca31007707e7066b8896f26324b91637;hb=3b23931d1826144ec30695d9c0ba8b147a21191d;hp=b9cb04413831cad8cbddfe4f76d24a8a5f8a709c;hpb=611bfe887e3f7534ac513107a108605e780a8c2e;p=cacao.git

diff --git a/doc/stack_frames.txt b/doc/stack_frames.txt
index b9cb04413..700c2e54c 100644
--- a/doc/stack_frames.txt
+++ b/doc/stack_frames.txt
@@ -26,7 +26,7 @@ V
 |   u8[]  ^  callee-saved float registers
 |   u4[]  ^  callee-saved integer registers
 V          
-|   >>>> sp on method entry <<<<
+|   >>>> sp on method entry, stack base for replacement <<<<
 |
 V   u4       return address
 |   u4[]     arguments on stack
@@ -39,20 +39,23 @@ x86_64 stack frames
 
 ,--memory address rising
 |
-V   >>>> sp in method (after initial sub) <<<<
+V   >>>> sp in method (after initial sub) (16-byte aligned in non-leaf methods) <<<<
 |          
 |   u8[]  v  arguments for calling methods              \__ rd->memuse slots
 V   u8[]  v  local variable slots allocated on stack    /
 |
-|   u8       synchronized object / saved return value       (only for synched methods)
-V   u8       alignment dummy slot                           (in non-leaf methods to ensure
+|   u8    v  synchronized object / saved return value       (only for synched methods)
+V   u8[0..1] alignment dummy slot                           (in non-leaf methods to ensure
 |                                                            16-byte alignment of stack)
 |   u8[]  ^  callee-saved float registers
 V   u8[]  ^  callee-saved integer registers
 |          
-|   >>>> sp on method entry <<<<
+|   >>>> sp on method entry, stack base for replacement  (8-byte odd) <<<<
 V
 |   u8       return address
+|
+V                                                 >>>>> (16-byte aligned) <<<<
+|
 |   u8[]     arguments on stack
 V
 
@@ -69,9 +72,13 @@ V   >>>> sp in method (after initial sub) <<<<
 V   u8[]  v  local variable slots allocated on stack    /
 |
 |   u8       synchronized object / saved return value       (only for synched methods)
+|   u8[0..1] alignment dummy slot
 V
 |   u8[]  ^  callee-saved float registers
 |   u8[]  ^  callee-saved integer registers
+V
+|     >>>> !!!replacement code regards this point as stack base!!! <<<<
+|		  
 V   u8    ^  saved return address                           (only for non-leaf methods)
 |
 |   >>>> sp on method entry <<<<
@@ -81,3 +88,53 @@ V
 V
 
 
+mips stack frames
+-----------------
+
+,--memory address rising
+|
+V   >>>> sp in method (after initial sub) (16-byte aligned) <<<<
+|          
+|   u8[]  v  arguments for calling methods              \__ rd->memuse slots
+V   u8[]  v  local variable slots allocated on stack    /
+|
+|   u8       synchronized object / saved return value       (only for synched methods)
+|   u8[0..1] alignment dummy slot                           (to ensure 16-byte alignment of sp)
+V
+|   u8[]  ^  callee-saved float registers
+|   u8[]  ^  callee-saved integer registers
+V
+|     >>>> !!!replacement code regards this point as stack base!!!  <<<<
+|		  
+V   u8    ^  saved return address                           (only for non-leaf methods)
+|
+|   >>>> sp on method entry (16-byte aligned) <<<<
+V
+|   u8[]     arguments on stack
+|
+V
+
+
+powerpc stack frames
+--------------------
+
+,--memory address rising
+|
+V   >>>> sp in method (after initial sub) (16-byte aligned) <<<<
+|          
+|   u4[]  v  arguments for calling methods (incl. LA)   \__ rd->memuse slots
+V   u4[]  v  local variable slots allocated on stack    /
+|
+|   u4[2..3] synchronized object / saved return value       (only for synched methods)
+|   u4[0..3] alignment slots
+V
+|   u8[]  ^  callee-saved float registers
+|   u4[]  ^  callee-saved integer registers
+V          
+|   >>>> sp on method entry, stack base for replacement (16-byte aligned) <<<<
+|
+|   u4[]     arguments on stack (inludes LA == linkage area)
+|
+V
+
+