Feature test for __builtin_frame_address

cmake/HPX_AddConfigTest.cmake

@@ -250,6 +250,15 @@ function(hpx_check_for_builtin_forward_move)
   )
 endfunction()
 
+# ##############################################################################
+function(hpx_check_for_builtin_frame_address)
+  add_hpx_config_test(
+          HPX_WITH_BUILTIN_FRAME_ADDRESS
+          SOURCE cmake/tests/builtin_frame_address.cpp
+          FILE ${ARGN}
+  )
+endfunction()
+
 # ##############################################################################
 function(hpx_check_for_libfun_std_experimental_optional)
   add_hpx_config_test(

cmake/HPX_PerformCxxFeatureTests.cmake

@@ -173,4 +173,6 @@ function(hpx_perform_cxx_feature_tests)
 
   hpx_check_for_builtin_forward_move(DEFINITIONS HPX_HAVE_BUILTIN_FORWARD_MOVE)
 
+  hpx_check_for_builtin_frame_address(DEFINITIONS HPX_HAVE_BUILTIN_FRAME_ADDRESS)
+
 endfunction()

cmake/tests/builtin_frame_address.cpp

@@ -0,0 +1,14 @@
+//  Copyright (c) 2024 Isidoros Tsaousis-Seiras
+//
+//  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)
+
+// test for availability of __builtin_frame_address(0)
+// This is needed because circle (build_226) defines __GNUC__
+// but does not provide the builtin
+
+int main()
+{
+    (void)__builtin_frame_address(0);
+}

libs/core/coroutines/include/hpx/coroutines/detail/get_stack_pointer.hpp

@@ -9,6 +9,7 @@
 #pragma once
 
 #include <hpx/config/compiler_specific.hpp>
+#include <hpx/config/defines.hpp>
 
 #if defined(HPX_WINDOWS)
 #define HPX_HAVE_THREADS_GET_STACK_POINTER
@@ -30,7 +31,7 @@ namespace hpx::threads::coroutines::detail {
 
     inline std::size_t get_stack_ptr() noexcept
     {
-#if defined(HPX_GCC_VERSION)
+#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)();