| ////////////////////////////////////////////////////////////////////////////// |
| // SPDX-FileCopyrightText: 2021, Dinesh Annayya //// |
| // //// |
| // Licensed under the Apache License, Version 2.0 (the "License"); //// |
| // you may not use this file except in compliance with the License. //// |
| // You may obtain a copy of the License at //// |
| // //// |
| // http://www.apache.org/licenses/LICENSE-2.0 //// |
| // //// |
| // Unless required by applicable law or agreed to in writing, software //// |
| // distributed under the License is distributed on an "AS IS" BASIS, //// |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied./// |
| // See the License for the specific language governing permissions and //// |
| // limitations under the License. //// |
| // SPDX-License-Identifier: Apache-2.0 //// |
| // SPDX-FileContributor: Dinesh Annayya <dinesha@opencores.org> //// |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| |
| #ifndef RELOC_H |
| #define RELOC_H |
| |
| #if (TCM == 1) |
| #define RELOC_PROC \ |
| la a0, __reloc_start; \ |
| la a1, __TEXT_START__; \ |
| la a2, __DATA_END__; \ |
| beq a0, a1, 21f; \ |
| j 2f; \ |
| 1: lw a3, 0(a0); \ |
| sw a3, 0(a1); \ |
| add a0, a0, 4; \ |
| add a1, a1, 4; \ |
| 2: bne a1, a2, 1b; \ |
| /* clear bss */ \ |
| la a2, __BSS_START__; \ |
| 21: la a1, __BSS_END__; \ |
| j 4f; \ |
| 3: sw zero, 0(a2); \ |
| add a2, a2, 4; \ |
| 4: bne a1, a2, 3b; \ |
| /* init stack */ \ |
| la sp, __C_STACK_TOP__; \ |
| /* init hart0 TLS */ \ |
| la a0, _tdata_begin; \ |
| la a2, _tbss_end; \ |
| sub a1, a2, a0; \ |
| la a4, __STACK_START__; \ |
| sub tp, a4, a1; |
| #else // #if TCM |
| |
| #define RELOC_PROC |
| |
| #endif // #else #if TCM |
| |
| #endif // |
