| /* |
| * Copyright (c) 2021-2025 Gerson Fernando Budke <nandojve@gmail.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/toolchain.h> |
| #include <zephyr/arch/riscv/csr.h> |
| |
| /* exports */ |
| GTEXT(__start) |
| |
| /* imports */ |
| GTEXT(__initialize) |
| GTEXT(_isr_wrapper) |
| |
| SECTION_FUNC(vectors, __start) |
| .cfi_startproc |
| |
| .option norvc |
| |
| /* Inform the debugger that there is nowhere to backtrace */ |
| .cfi_undefined ra |
| |
| /* Disable interrupts */ |
| li t0, MSTATUS_MIE |
| csrc mstatus, t0 |
| |
| /* |
| * Set mtvec (Machine Trap-Vector Base-Address Register) |
| * CLINT Direct mode |
| */ |
| la t0, _isr_wrapper |
| csrw mtvec, t0 |
| |
| /* Jump to __initialize */ |
| tail __initialize |
| |
| .cfi_endproc |
