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98444e090b
* Use JavaScript JIT only on supported platforms. * Fix ARM Thumb2 detection to allow using JavaScript JIT on ARMv7. * Add inline assembly implementation returning the current stack pointer on PPC64 (or PPC). Signed-off-by: Daniel Golle <daniel@makrotopia.org>
32 lines
970 B
Diff
32 lines
970 B
Diff
From fe687ccb463fa42de923c5440259d89f781f3c69 Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Mon, 9 Dec 2024 01:01:44 +0000
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Subject: [PATCH] currentStackPointer for Linux/PPC, Linux/PPC64
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Add inline assembly implementation to return the current stack
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pointer on Linux running on PowerPC and PowerPC64 archtecture.
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---
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Source/WTF/wtf/StackPointer.cpp | 11 +++++++++++
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1 file changed, 11 insertions(+)
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--- a/Source/WTF/wtf/StackPointer.cpp
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+++ b/Source/WTF/wtf/StackPointer.cpp
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@@ -160,6 +160,17 @@ asm (
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".previous" "\n"
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);
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+#elif CPU(PPC) || CPU(PPC64)
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+asm (
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+ ".text" "\n"
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+ ".globl " SYMBOL_STRING(currentStackPointer) "\n"
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+ SYMBOL_STRING(currentStackPointer) ":" "\n"
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+
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+ "mr 3, 1" "\n" // Move stack pointer (r1) to return register (r3)
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+ "blr" "\n" // Branch to link register (return)
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+ ".previous" "\n"
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+);
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+
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#else
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#error "Unsupported platform: need implementation of currentStackPointer."
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#endif
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