X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=doc%2Fstack_frames.txt;h=700c2e54ca31007707e7066b8896f26324b91637;hb=4bf4a7402530f4743387518780fc133038f1e44d;hp=c2223f0764ee520dc1e8f4cb01a4f3c670352506;hpb=4e10d4a9cba173105c25d0aaf2d0de75f3e5a6b4;p=cacao.git

diff --git a/doc/stack_frames.txt b/doc/stack_frames.txt
index c2223f076..700c2e54c 100644
--- a/doc/stack_frames.txt
+++ b/doc/stack_frames.txt
@@ -14,16 +14,127 @@ tries to collect the stack frame layouts used on the various architectures.
 i386 stack frames
 -----------------
 
->>>> sp in method (after initial sub) <<<<
+,--memory address rising
+|
+V   >>>> sp in method (after initial sub) <<<<
+|          
+|   u4[]  v  arguments for calling methods              \__ rd->memuse slots
+V   u4[]  v  local variable slots allocated on stack    /
+|
+|   u4[1..2] synchronized object / saved return value       (only for synched methods)
+V
+|   u8[]  ^  callee-saved float registers
+|   u4[]  ^  callee-saved integer registers
+V          
+|   >>>> sp on method entry, stack base for replacement <<<<
+|
+V   u4       return address
+|   u4[]     arguments on stack
+|
+V
 
-u4[]  arguments for calling methods
-u4[]  local variable slots allocated on stack
-u4[]  callee-saved registers
 
->>>> sp on method entry <<<<
+x86_64 stack frames
+-----------------
+
+,--memory address rising
+|
+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    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, stack base for replacement  (8-byte odd) <<<<
+V
+|   u8       return address
+|
+V                                                 >>>>> (16-byte aligned) <<<<
+|
+|   u8[]     arguments on stack
+V
+
+
+
+alpha stack frames
+------------------
+
+,--memory address rising
+|
+V   >>>> sp in method (after initial sub) <<<<
+|          
+|   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
+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 <<<<
+V
+|   u8[]     arguments on stack
+|
+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
+
 
-u4    return address
-u4[]  arguments on stack
+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