bastion: initial implementation

ready project skeleton
dual-arch build system with Linux-config style configuration
UEFI EFI stub loader (PE32+) for x86_64 and AArch64
ELF64 kernel parser
Temporary framebuffer console
freestanding string and c++ abi stubs

For now, kernel boots, prints banner, memory map and go halt

1 files changed, 17 insertions, 0 deletions

diff --git a/kernel/arch/aarch64/arch.cpp b/kernel/arch/aarch64/arch.cpp
new file mode 100644
index 0000000..e35b769
--- /dev/null
+++ b/kernel/arch/aarch64/arch.cpp
@@ -0,0 +1,17 @@
+// ============================================================================
+// arch/aarch64/arch.cpp — AArch64 architecture-specific primitives
+// ============================================================================
+
+#include <kernel/arch.h>
+
+namespace arch {
+
+[[noreturn]] void halt() {
+    for (;;) asm volatile("wfi");
+}
+
+const char* name() {
+    return "AArch64";
+}
+
+} // namespace arch