87c9a0ee76
Previously k230 kernel build needs OpenSBI wrapping for use on target, thus leading to larger program and memory overheads. This patch adds alternative small overhead kernel build support. Changes: - in arch/risc-v/src/k230: - k230_head.S entrance renamed for sake of NUTTSBI - k230_irq.c add M-mode handling for NUTTSBI case - k230_mm_init.c add L3 table for smaller RAM case - hardware/k230_plic.h add PLIC_CTRL definition - Make.defs use CHIP_ASRCS to fix entrance selection - in boards/risc-v/canmv230/scripts: - Make.defs add support for NUTTSBI case Additions: - in boards/riscv/canmv230/: - scripts/ld-nuttsbi.script link script for NUTTSBI case - configs/nsbi/defconfig config for NUTTSBI case The artifact nuttx.bin from this configuration can be used directly on target as OpenSBI wrapping is not needed. Signed-off-by: Yanfeng Liu <yfliu2008@qq.com> fix typo
144 lines
3.4 KiB
Plaintext
144 lines
3.4 KiB
Plaintext
/****************************************************************************
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* boards/risc-v/k230/canmv230/scripts/ld-nuttsbi.script
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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MEMORY
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{
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kflash (rx) : ORIGIN = 0x8000000, LENGTH = 384K /* w/ cache */
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ksram (rwx) : ORIGIN = 0x8080000, LENGTH = 128K /* w/ cache */
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pgram (rwx) : ORIGIN = 0x8600000, LENGTH = 10M /* w/ cache */
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}
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OUTPUT_ARCH("riscv")
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/* Provide the kernel boundaries */
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__kflash_start = ORIGIN(kflash);
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__kflash_size = LENGTH(kflash);
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__ksram_start = ORIGIN(ksram);
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__ksram_size = LENGTH(ksram);
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__ksram_end = ORIGIN(ksram) + LENGTH(ksram);
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/* Page heap */
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__pgheap_start = ORIGIN(pgram);
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__pgheap_size = LENGTH(pgram);
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SECTIONS
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{
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. = 0x8000000;
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.text :
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{
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_stext = . ;
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*(.text)
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*(.text.*)
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*(.gnu.warning)
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*(.stub)
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*(.glue_7)
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*(.glue_7t)
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*(.jcr)
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/* C++ support: The .init and .fini sections contain specific logic
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* to manage static constructors and destructors.
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*/
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*(.gnu.linkonce.t.*)
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*(.init) /* Old ABI */
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*(.fini) /* Old ABI */
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_etext = . ;
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}
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.rodata :
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{
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_srodata = . ;
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*(.rodata)
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*(.rodata1)
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*(.rodata.*)
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*(.gnu.linkonce.r*)
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_erodata = . ;
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}
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.tdata : {
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_stdata = ABSOLUTE(.);
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*(.tdata .tdata.* .gnu.linkonce.td.*);
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_etdata = ABSOLUTE(.);
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}
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.tbss : {
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_stbss = ABSOLUTE(.);
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*(.tbss .tbss.* .gnu.linkonce.tb.* .tcommon);
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_etbss = ABSOLUTE(.);
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}
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_eronly = ABSOLUTE(.);
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.data :
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{
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_sdata = . ;
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*(.data)
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*(.data1)
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*(.data.*)
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*(.gnu.linkonce.d*)
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. = ALIGN(4);
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_edata = . ;
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}
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.bss :
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{
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_sbss = . ;
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*(.bss)
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*(.bss.*)
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*(.sbss)
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*(.sbss.*)
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*(.gnu.linkonce.b*)
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*(COMMON)
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_ebss = . ;
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} > ksram
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/* Page tables here, align to 4K boundary */
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.pgtables (NOLOAD) : ALIGN(0x1000) {
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*(.pgtables)
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. = ALIGN(4);
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} > ksram
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/* Stack top */
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.stack_top : {
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. = ALIGN(32);
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_ebss = ABSOLUTE(.);
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} > ksram
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_info 0 : { *(.debug_info) }
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.debug_line 0 : { *(.debug_line) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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.debug_aranges 0 : { *(.debug_aranges) }
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}
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