From 7624b2e9006423f693757489d3e254f5e9d500d1 Mon Sep 17 00:00:00 2001
From: isidorostsa <tsa.isidoros@gmail.com>
Date: Thu, 19 Dec 2024 16:08:56 +0200
Subject: [PATCH] get_stack_pointer to .cpp, prevent errors when using
 different compilers to build/use hpx

---
 libs/core/coroutines/CMakeLists.txt           |  1 +
 .../coroutines/detail/get_stack_pointer.hpp   | 25 +----------
 .../src/detail/get_stack_pointer.cpp          | 41 +++++++++++++++++++
 3 files changed, 44 insertions(+), 23 deletions(-)
 create mode 100644 libs/core/coroutines/src/detail/get_stack_pointer.cpp

diff --git a/libs/core/coroutines/CMakeLists.txt b/libs/core/coroutines/CMakeLists.txt
index 2daf23eaa050..be45613ed397 100644
--- a/libs/core/coroutines/CMakeLists.txt
+++ b/libs/core/coroutines/CMakeLists.txt
@@ -72,6 +72,7 @@ set(coroutines_sources
     detail/context_posix.cpp
     detail/coroutine_impl.cpp
     detail/coroutine_self.cpp
+    detail/get_stack_pointer.cpp
     detail/posix_utility.cpp
     detail/tss.cpp
     swapcontext.cpp
diff --git a/libs/core/coroutines/include/hpx/coroutines/detail/get_stack_pointer.hpp b/libs/core/coroutines/include/hpx/coroutines/detail/get_stack_pointer.hpp
index 26660534fccb..ff4a3c13a897 100644
--- a/libs/core/coroutines/include/hpx/coroutines/detail/get_stack_pointer.hpp
+++ b/libs/core/coroutines/include/hpx/coroutines/detail/get_stack_pointer.hpp
@@ -8,6 +8,7 @@
 
 #pragma once
 
+#include <hpx/config.hpp>
 #include <hpx/config/compiler_specific.hpp>
 #include <hpx/config/defines.hpp>
 
@@ -28,28 +29,6 @@
 #include <limits>
 
 namespace hpx::threads::coroutines::detail {
-
-    inline std::size_t get_stack_ptr() noexcept
-    {
-#if defined(HPX_HAVE_BUILTIN_FRAME_ADDRESS)
-        return std::size_t(__builtin_frame_address(0));
-#else
-        std::size_t stack_ptr = (std::numeric_limits<std::size_t>::max)();
-#if defined(__x86_64__) || defined(__amd64)
-        asm("movq %%rsp, %0" : "=r"(stack_ptr));
-#elif defined(__i386__) || defined(__i486__) || defined(__i586__) ||           \
-    defined(__i686__)
-        asm("movl %%esp, %0" : "=r"(stack_ptr));
-#elif defined(__powerpc__)
-        void* stack_ptr_p = &stack_ptr;
-        asm("stw %%r1, 0(%0)" : "=&r"(stack_ptr_p));
-#elif defined(__arm__)
-        asm("mov %0, sp" : "=r"(stack_ptr));
-#elif defined(__riscv)
-        __asm__ __volatile__("add %0, x0, sp" : "=r"(stack_ptr));
-#endif
-        return stack_ptr;
-#endif
-    }
+    HPX_CORE_EXPORT std::size_t get_stack_ptr() noexcept;
 }    // namespace hpx::threads::coroutines::detail
 #endif
diff --git a/libs/core/coroutines/src/detail/get_stack_pointer.cpp b/libs/core/coroutines/src/detail/get_stack_pointer.cpp
new file mode 100644
index 000000000000..a9c841dd328a
--- /dev/null
+++ b/libs/core/coroutines/src/detail/get_stack_pointer.cpp
@@ -0,0 +1,41 @@
+//  Copyright (c) 2013-2016 Thomas Heller
+//  Copyright (c) 2022 Christopher Taylor
+//
+//  SPDX-License-Identifier: BSL-1.0
+//  Distributed under the Boost Software License, Version 1.0.
+//  (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+#include <hpx/coroutines/detail/get_stack_pointer.hpp>
+
+#if !defined(HPX_WINDOWS)
+
+#include <cstddef>
+#include <limits>
+
+namespace hpx::threads::coroutines::detail {
+
+    std::size_t get_stack_ptr() noexcept
+    {
+#if defined(HPX_HAVE_BUILTIN_FRAME_ADDRESS)
+        return std::size_t(__builtin_frame_address(0));
+#else
+        std::size_t stack_ptr = (std::numeric_limits<std::size_t>::max)();
+#if defined(__x86_64__) || defined(__amd64)
+        asm("movq %%rsp, %0" : "=r"(stack_ptr));
+#elif defined(__i386__) || defined(__i486__) || defined(__i586__) ||           \
+    defined(__i686__)
+        asm("movl %%esp, %0" : "=r"(stack_ptr));
+#elif defined(__powerpc__)
+        void* stack_ptr_p = &stack_ptr;
+        asm("stw %%r1, 0(%0)" : "=&r"(stack_ptr_p));
+#elif defined(__arm__)
+        asm("mov %0, sp" : "=r"(stack_ptr));
+#elif defined(__riscv)
+        __asm__ __volatile__("add %0, x0, sp" : "=r"(stack_ptr));
+#endif
+        return stack_ptr;
+#endif
+    }
+}    // namespace hpx::threads::coroutines::detail
+#endif