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From 7931bf3de0c93ca3782a9483ca30b3061356b167 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Wed, 23 Sep 2026 14:33:27 +0100
Subject: [PATCH] currentStackPointer for Linux/PPC, Linux/PPC64
Add inline assembly implementation to return the current stack
pointer on Linux running on PowerPC and PowerPC64 archtecture.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
Source/WTF/wtf/StackPointer.cpp | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/Source/WTF/wtf/StackPointer.cpp
+++ b/Source/WTF/wtf/StackPointer.cpp
@@ -171,6 +171,17 @@ __asm__(
".previous" "\n"
);
+#elif CPU(PPC) || CPU(PPC64)
+asm (
+ ".text" "\n"
+ ".globl " SYMBOL_STRING(currentStackPointer) "\n"
+ SYMBOL_STRING(currentStackPointer) ":" "\n"
+
+ "mr 3, 1" "\n" // Move stack pointer (r1) to return register (r3)
+ "blr" "\n" // Branch to link register (return)
+ ".previous" "\n"
+);
+
#else
#error "Unsupported platform: need implementation of currentStackPointer."
#endif
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