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[obvious] rs6000: Update ELFv2 stack frame comment showing the correct ROP save location

Message ID 9d99d740-85c5-4feb-9100-a07cd63fc8b4@linux.ibm.com
State New
Headers show
Series [obvious] rs6000: Update ELFv2 stack frame comment showing the correct ROP save location | expand

Commit Message

Peter Bergner June 7, 2024, 8:59 p.m. UTC 
I consider this one obvious, so I plan on pushing this soonish.

Peter


The ELFv2 stack frame layout comment in rs6000-logue.cc shows the ROP
hash save slot in the wrong location.  Update the comment to show the
correct ROP hash save location in the frame.

gcc/
	* config/rs6000/rs6000-logue.cc (rs6000_stack_info): Update comment.
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Patch

diff --git a/gcc/config/rs6000/rs6000-logue.cc b/gcc/config/rs6000/rs6000-logue.cc
index bd5d56ba002..0ef309e043b 100644
--- a/gcc/config/rs6000/rs6000-logue.cc
+++ b/gcc/config/rs6000/rs6000-logue.cc
@@ -591,21 +591,21 @@  rs6000_savres_strategy (rs6000_stack_t *info,
 		+---------------------------------------+
 		| Parameter save area (+padding*) (P)	|  32
 		+---------------------------------------+
-		| Optional ROP hash slot (R)		|  32+P
+		| Alloca space (A)			|  32+P
 		+---------------------------------------+
-		| Alloca space (A)			|  32+P+R
+		| Local variable space (L)		|  32+P+A
 		+---------------------------------------+
-		| Local variable space (L)		|  32+P+R+A
+		| Optional ROP hash slot (R)		|  32+P+A+L
 		+---------------------------------------+
-		| Save area for AltiVec registers (W)	|  32+P+R+A+L
+		| Save area for AltiVec registers (W)	|  32+P+A+L+R
 		+---------------------------------------+
-		| AltiVec alignment padding (Y)		|  32+P+R+A+L+W
+		| AltiVec alignment padding (Y)		|  32+P+A+L+R+W
 		+---------------------------------------+
-		| Save area for GP registers (G)	|  32+P+R+A+L+W+Y
+		| Save area for GP registers (G)	|  32+P+A+L+R+W+Y
 		+---------------------------------------+
-		| Save area for FP registers (F)	|  32+P+R+A+L+W+Y+G
+		| Save area for FP registers (F)	|  32+P+A+L+R+W+Y+G
 		+---------------------------------------+
-	old SP->| back chain to caller's caller		|  32+P+R+A+L+W+Y+G+F
+	old SP->| back chain to caller's caller		|  32+P+A+L+R+W+Y+G+F
 		+---------------------------------------+
 
      * If the alloca area is present, the parameter save area is