(#594) Introduce stacktrace unit

CMakeLists.txt

@@ -119,6 +119,8 @@ add_executable(nothing
   src/game/level_script.h
   src/ebisp/std.h
   src/ebisp/std.c
+  src/system/stacktrace.h
+  src/system/stacktrace.c
 )
 
 add_executable(repl

src/system/stacktrace.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+#ifdef __GNUC__
+#include <execinfo.h>
+#endif
+#include <unistd.h>
+
+#include "./stacktrace.h"
+
+#define N 10
+
+void print_stacktrace(void)
+{
+#ifdef __GNUC__
+    void *array[N];
+    int size;
+
+    size = backtrace(array, N);
+
+    if (size <= 0) {
+        return;
+    }
+
+    fprintf(stderr, "Stacktrace: \n");
+    backtrace_symbols_fd(array + 1, size - 1, STDERR_FILENO);
+#endif
+}

src/system/stacktrace.h

@@ -0,0 +1,18 @@
+#ifndef STACKTRACE_H_
+#define STACKTRACE_H_
+
+#define trace_assert(condition)                         \
+    if (!(condition)) {                                 \
+        fprintf(                                        \
+            stderr,                                     \
+            "%s:%d: %s: Assertion `%s' failed\n",       \
+            __FILE__, __LINE__,                         \
+            __func__,                                   \
+            #condition);                                \
+        print_stacktrace();                             \
+        exit(1);                                        \
+    }
+
+void print_stacktrace(void);
+
+#endif  // STACKTRACE_H_