From 6f29f0be4f699d6aacde916e3ce15ff0f90c48ea Mon Sep 17 00:00:00 2001
From: monojenkins <jo.shields+jenkins@xamarin.com>
Date: Tue, 17 Nov 2020 20:38:57 -0500
Subject: [PATCH] [wasm] Use the functions in emscripten/stack.h to compute
 stack bounds. (#44819)

Co-authored-by: vargaz <vargaz@users.noreply.github.com>
---
 src/mono/mono/utils/mono-threads-wasm.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/mono/mono/utils/mono-threads-wasm.c b/src/mono/mono/utils/mono-threads-wasm.c
index 33f4688..dc792e8 100644
--- a/src/mono/mono/utils/mono-threads-wasm.c
+++ b/src/mono/mono/utils/mono-threads-wasm.c
@@ -10,6 +10,7 @@
 #include <mono/utils/mono-mmap.h>
 
 #include <emscripten.h>
+#include <emscripten/stack.h>
 #include <glib.h>
 
 #define round_down(addr, val) ((void*)((addr) & ~((val) - 1)))
@@ -18,19 +19,14 @@ EMSCRIPTEN_KEEPALIVE
 static int
 wasm_get_stack_base (void)
 {
-	// Return the bottom limit of the stack
-	return EM_ASM_INT ({
-		return STACK_MAX;
-	});
+	return emscripten_stack_get_end ();
 }
 
 EMSCRIPTEN_KEEPALIVE
 static int
 wasm_get_stack_size (void)
 {
-	return EM_ASM_INT ({
-		return TOTAL_STACK;
-	});
+	return (guint8*)emscripten_stack_get_base () - (guint8*)emscripten_stack_get_end ();
 }
 
 int
-- 
2.7.4