From f8b9bed570735f5c11faa2e66da28e4e4236845d Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Thu, 27 Oct 2022 12:57:13 +0200
Subject: roll up one's own abort()

---
 compat/assert.hpp | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/compat/assert.hpp b/compat/assert.hpp
index 29b6d081..3a6fed34 100644
--- a/compat/assert.hpp
+++ b/compat/assert.hpp
@@ -1,6 +1,5 @@
 #pragma once
 #include "defs.hpp"
-#include <cstdlib>
 #include <cstdio>
 #include <type_traits>
 
@@ -16,6 +15,16 @@
 #define FM_KILL_WARN_double_promotion2()
 #endif
 
+namespace floormat {
+
+[[noreturn]] [[maybe_unused]] static inline void _fm_abort() {
+    *(volatile int*)nullptr = 0;
+    for (;;)
+        ;
+}
+
+} // namespace floormat
+
 #define fm_EMIT_DEBUG(pfx, ...)                                         \
     do {                                                                \
         if (!std::is_constant_evaluated()) {                            \
@@ -32,15 +41,15 @@
 #define fm_abort(...)                                                   \
     do {                                                                \
         fm_EMIT_DEBUG("fatal: ", __VA_ARGS__);                          \
-        std::abort();                                                   \
+        ::floormat::_fm_abort();                                        \
     } while (false)
 
 #define fm_assert(...)                                                  \
     do {                                                                \
         if (!(__VA_ARGS__)) {                                           \
             fm_EMIT_DEBUG("", "assertion failed: '%s' in %s:%d",        \
-                       #__VA_ARGS__, __FILE__, __LINE__);               \
-            std::abort();                                               \
+                          #__VA_ARGS__, __FILE__, __LINE__);            \
+            ::floormat::_fm_abort();                                    \
         }                                                               \
     } while(false)
 
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