build: break the engine into its subsystemsv0.60

Break the source code into various subsystem directories. This allows
certain subsystems to be disabled at compile time, if needed. Move the
build system from raw Makefiles to a CMake generator. This drastically
simplifies the build and requires only editing a single file, rather
than the several make.config files in subsystem directories.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/core/abort.c b/core/abort.c
new file mode 100644
index 0000000..3b8e536
--- /dev/null
+++ b/core/abort.c
@@ -0,0 +1,24 @@
+#include <rune/core/abort.h>
+#include <rune/core/init.h>
+#include <rune/core/logging.h>
+#include <execinfo.h>
+#include <stdlib.h>
+
+#define MAX_TRACE_ITEMS 30
+
+void _stack_trace(void) {
+        void* buffer[MAX_TRACE_ITEMS];
+        int num_links = backtrace(buffer, MAX_TRACE_ITEMS);
+        char** symbuf = backtrace_symbols(buffer, num_links);
+
+        for (int i = 0; i < num_links; i++)
+                log_output(LOG_INFO, "#%d: %s", i, symbuf[i]);
+
+        free(symbuf);
+}
+
+void rune_abort(void) {
+        log_output(LOG_INFO, "Abort called, printing stack trace");
+        _stack_trace();
+        rune_exit();
+}