Added the zig_main project to software for zig based implementation of code for robot

software/zig_main/imports/panic.zig

@@ -0,0 +1,21 @@
+const sys = @import("sys");
+const log = @import("log");
+
+/// panic handler for esp-idf
+pub fn panic(msg: []const u8, stack_trace: ?*@import("std").builtin.StackTrace, _: ?usize) noreturn {
+    sys.esp_log_write(log.default_level, "PANIC", "[%lu ms] PANIC: %.*s\n", sys.esp_log_timestamp(), msg.len, msg.ptr);
+
+    // try print stack trace if available
+    if (stack_trace) |st| {
+        var i: usize = st.index;
+        if (i > st.instruction_addresses.len) i = st.instruction_addresses.len;
+        var idx: usize = 0;
+        while (idx < i) : (idx += 1) {
+            sys.esp_log_write(log.default_level, "PANIC", "  #%u: 0x%08lx\n", idx, st.instruction_addresses[idx]);
+        }
+    }
+
+    while (true) {
+        asm volatile ("" ::: .{ .memory = true });
+    }
+}