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risc-v/canmv230: add PROTECTED build support

Browse source 
Additions:

- In arch/risc-v/src/k230/
  - k230_userspace.c      add user space initialization
  - k230_userspace.h      headers for user space initialization
- In boards/risc-v/k230/canmv230/kernel/
  - k230_userspace.c      userspace_s const data definition
  - Makefile              pass1 Makefile
- In boards/risc-v/k230/canmv230/scripts/
  - ld-protected.script   linker script for protected build kernel
  - ld-userland.script    linker script for protected build userspace
- In boards/risc-v/k230/canmv230/configs
  - pnsh/defconfig        defconfig for protected build

Changes:

- In arch/risc-v/src/k230/
  - k230_start.c          add protected build handling logic
  - Make.defs             add protected build support
- In boards/risc-v/k230/canmv230/scripts/
  - Make.defs             add protected build support
- In Documentation/platforms/risc-v/k230/boards/canmv230/
  - index.rst             add protected build usage

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This commit is contained in:
Yanfeng Liu 2024-01-08 14:33:53 +08:00 • committed by Alan Carvalho de Assis
parent 514f020ace
commit dd1365ef85
11 changed files with 761 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

37
Documentation/platforms/risc-v/k230/boards/canmv230/index.rst
View file

@ -36,7 +36,10 @@ Building
To build NuttX for CanMV, :doc:`install the prerequisites </quickstart/install>` and :doc:`clone the git repositories </quickstart/install>` for ``nuttx`` and ``apps``.
Configure and build FLAT mode NuttX:
FLAT Build
----------
FLAT build is straightforward:
.. code:: console
@ -44,9 +47,33 @@ Configure and build FLAT mode NuttX:
$ make distclean && tools/configure.sh canmv230:nsh
$ make -j4
This should have `nuttx.bin` generated, it can be loaded by U-Boot on the board.
The generated `nuttx.bin` can then be tried on the target.
The NuttX KERNEL build requires two build passes: first pass to build kernel w/ dummy ROMFS and apps, second pass to build the kernel with real ROMFS image containing apps built in first pass.
PROTECTED Build
---------------
PROTECTED build can be done like below:
.. code:: console
$ cd nuttx
$ make distclean && tools/configure.sh canmv230:pnsh
$ make -j4
There will be `nuttx.bin` and `nuttx_user.bin` generated. We need pad `nuttx.bin` to so that to fill memory gap till user space flash start then combine it with `nuttx_user.bin` to form the final binary for run on the target. Say the gap between uflash and kflash is 256KB in `scripts/ld-protected.script`, we can pad-combine them like below:
.. code:: console
$ dd if=/dev/zero of=/tmp/padded bs=1024 count=256
$ dd if=nuttx.bin of=/tmp/padded conv=notrunc
$ cat /tmp/padded nuttx_user.bin > /tftp-folder/nuttx.bin
The combined `nuttx.bin` in TFTP service folder can then be tried on target.
KERNEL Build
------------
KERNEL build requires two build passes: first pass to build kernel w/ dummy ROMFS, then we build the apps and update ROMFS, second pass to build the kernel with real ROMFS image containing the apps.
.. code:: console
@ -72,7 +99,8 @@ The built `nuttx.bin` can be then wrapped with K230 OpenSBI like below:
Please use actual paths on your host for `nuttx.bin` and TFTP folder when running above commands.
Booting
Running
=======
Within U-boot console, load `nuttx.bin` from TFTP service and run it:
@ -90,4 +118,3 @@ Issues
======
- The `ostest` app has non-zero exit code in Kernel build.

4
arch/risc-v/src/k230/Make.defs
View file

@ -35,3 +35,7 @@ endif
ifeq ($(CONFIG_MM_PGALLOC),y)
CHIP_CSRCS += k230_pgalloc.c
endif
ifeq ($(CONFIG_BUILD_PROTECTED),y)
CHIP_CSRCS += k230_userspace.c
endif

47
arch/risc-v/src/k230/k230_start.c
View file

@ -33,12 +33,12 @@
#include "riscv_internal.h"
#include "chip.h"
#ifdef CONFIG_BUILD_KERNEL
# include "k230_mm_init.h"
#ifdef CONFIG_BUILD_PROTECTED
# include "k230_userspace.h"
#endif
#ifdef CONFIG_DEVICE_TREE
# include <nuttx/fdt.h>
#ifdef CONFIG_BUILD_KERNEL
# include "k230_mm_init.h"
#endif
/****************************************************************************
@ -73,6 +73,31 @@ static void k230_clear_bss(void)
}
}
#ifndef CONFIG_BUILD_KERNEL
/****************************************************************************
* Name: k230_copy_initialized
****************************************************************************/
static void k230_copy_initialized(void)
{
const uint32_t *src;
uint32_t *dest;
/* Move the initialized data section from his temporary holding spot in
* FLASH into the correct place in SRAM. The correct place in SRAM is
* give by _sdata and _edata. The temporary location is in FLASH at the
* end of all of the other read-only data (.text, .rodata) at _eronly.
*/
for (src = (const uint32_t *)_eronly,
dest = (uint32_t *)_sdata; dest < (uint32_t *)_edata;
)
{
*dest++ = *src++;
}
}
#endif
/****************************************************************************
* Public Data
****************************************************************************/
@ -98,9 +123,9 @@ void k230_start(int mhartid, const char *dtb)
k230_clear_bss();
#ifdef CONFIG_BUILD_KERNEL
/* Initialize the per CPU areas */
riscv_percpu_add_hart(mhartid);
#else
k230_copy_initialized();
#endif
}
@ -117,10 +142,6 @@ void k230_start(int mhartid, const char *dtb)
goto cpux;
}
#ifdef CONFIG_DEVICE_TREE
fdt_register(dtb);
#endif
showprogress('A');
#ifdef USE_EARLYSERIALINIT
@ -131,9 +152,11 @@ void k230_start(int mhartid, const char *dtb)
/* Do board initialization */
#ifdef CONFIG_BUILD_KERNEL
/* Setup page tables for kernel and enable MMU */
#ifdef CONFIG_BUILD_PROTECTED
k230_userspace();
#endif
#ifdef CONFIG_BUILD_KERNEL
k230_mm_init();
#endif

134
arch/risc-v/src/k230/k230_userspace.c Normal file
View file

@ -0,0 +1,134 @@
/****************************************************************************
* arch/risc-v/src/k230/k230_userspace.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <assert.h>
#include <nuttx/queue.h>
#include <nuttx/userspace.h>
#include <arch/board/board_memorymap.h>
#include "k230_userspace.h"
#include "riscv_internal.h"
#ifdef CONFIG_BUILD_PROTECTED
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define UFLASH_F (PMPCFG_A_NAPOT | PMPCFG_X | PMPCFG_R)
#define USRAM_F (PMPCFG_A_NAPOT | PMPCFG_W | PMPCFG_R)
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: configure_mpu
*
* Description:
* This function configures the MPU for for kernel- / userspace separation.
* It will also grant access to the page table memory for the supervisor.
*
****************************************************************************/
static void configure_mpu(void);
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: k230_userspace
*
* Description:
* For the case of the separate user-/kernel-space build, perform whatever
* platform specific initialization of the user memory is required.
* Normally this just means initializing the user space .data and .bss
* segments.
*
****************************************************************************/
void k230_userspace(void)
{
uint8_t *src;
uint8_t *dest;
uint8_t *end;
/* Clear all of user-space .bss */
DEBUGASSERT(USERSPACE->us_bssstart != 0 && USERSPACE->us_bssend != 0 &&
USERSPACE->us_bssstart <= USERSPACE->us_bssend);
dest = (uint8_t *)USERSPACE->us_bssstart;
end = (uint8_t *)USERSPACE->us_bssend;
while (dest != end)
{
*dest++ = 0;
}
/* Initialize all of user-space .data */
DEBUGASSERT(USERSPACE->us_datasource != 0 &&
USERSPACE->us_datastart != 0 && USERSPACE->us_dataend != 0 &&
USERSPACE->us_datastart <= USERSPACE->us_dataend);
src = (uint8_t *)USERSPACE->us_datasource;
dest = (uint8_t *)USERSPACE->us_datastart;
end = (uint8_t *)USERSPACE->us_dataend;
while (dest != end)
{
*dest++ = *src++;
}
/* Configure MPU / PMP to grant access to the userspace */
configure_mpu();
}
/****************************************************************************
* Name: configure_mpu
*
* Description:
* This function configures the MPU for for kernel- / userspace separation.
*
****************************************************************************/
static void configure_mpu(void)
{
riscv_config_pmp_region(0, UFLASH_F, UFLASH_START, UFLASH_SIZE);
riscv_config_pmp_region(1, USRAM_F, USRAM_START, USRAM_SIZE);
}
#endif /* CONFIG_BUILD_PROTECTED */

49
arch/risc-v/src/k230/k230_userspace.h Normal file
View file

@ -0,0 +1,49 @@
/****************************************************************************
* arch/risc-v/src/k230/k230_userspace.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
#ifndef __ARCH_RISCV_SRC_k230_k230_USERSPACE_H
#define __ARCH_RISCV_SRC_k230_k230_USERSPACE_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Public Functions Prototypes
****************************************************************************/
/****************************************************************************
* Name: k230_userspace
*
* Description:
* For the case of the separate user-/kernel-space build, perform whatever
* platform specific initialization of the user memory is required.
* Normally this just means initializing the user space .data and .bss
* segments.
*
****************************************************************************/
#ifdef CONFIG_BUILD_PROTECTED
void k230_userspace(void);
#endif
#endif /* __ARCH_RISCV_SRC_k230_k230_USERSPACE_H */

69
boards/risc-v/k230/canmv230/configs/pnsh/defconfig Normal file
View file

@ -0,0 +1,69 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_DISABLE_OS_API is not set
# CONFIG_NSH_DISABLE_LOSMART is not set
CONFIG_16550_ADDRWIDTH=0
CONFIG_16550_REGWIDTH=32
CONFIG_16550_SERIAL_DISABLE_REORDERING=y
CONFIG_16550_SUPRESS_CONFIG=y
CONFIG_16550_UART0=y
CONFIG_16550_UART0_BASE=0x91400000
CONFIG_16550_UART0_CLOCK=50000000
CONFIG_16550_UART0_IRQ=43
CONFIG_16550_UART0_SERIAL_CONSOLE=y
CONFIG_16550_UART=y
CONFIG_16550_WAIT_LCR=y
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="canmv230"
CONFIG_ARCH_BOARD_K230_CANMV=y
CONFIG_ARCH_CHIP="k230"
CONFIG_ARCH_CHIP_K230=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARCH_USE_MPU=y
CONFIG_BOARD_LOOPSPERMSEC=6366
CONFIG_BUILD_PROTECTED=y
CONFIG_BUILTIN=y
CONFIG_DEV_ZERO=y
CONFIG_ELF=y
CONFIG_EXAMPLES_HELLO=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INIT_STACKSIZE=3072
CONFIG_LIBC_ENVPATH=y
CONFIG_LIBC_EXECFUNCS=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_LIBM=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NUTTX_USERSPACE=0x8040000
CONFIG_PASS1_BUILDIR="boards/risc-v/k230/canmv230/kernel"
CONFIG_PATH_INITIAL="/system/bin"
CONFIG_RAM_SIZE=134213632
CONFIG_RAM_START=0x8000000
CONFIG_RAW_BINARY=y
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_SERIAL_UART_ARCH_MMIO=y
CONFIG_STACK_COLORATION=y
CONFIG_STANDARD_SERIAL=y
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2021
CONFIG_SYMTAB_ORDEREDBYNAME=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NSH_STACKSIZE=3072
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_USEC_PER_TICK=1000

92
boards/risc-v/k230/canmv230/kernel/Makefile Normal file
View file

@ -0,0 +1,92 @@
############################################################################
# boards/risc-v/k230/canmv230/kernel/Makefile
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you 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.
#
############################################################################
include $(TOPDIR)/Make.defs
# The entry point name (if none is provided in the .config file)
CONFIG_INIT_ENTRYPOINT ?= user_start
ENTRYPT = $(patsubst "%",%,$(CONFIG_INIT_ENTRYPOINT))
# Get the paths to the libraries and the links script path in format that
# is appropriate for the host OS
USER_LIBPATHS = $(addprefix -L,$(call CONVERT_PATH,$(addprefix $(TOPDIR)$(DELIM),$(dir $(USERLIBS)))))
USER_LDSCRIPT = -T $(call CONVERT_PATH,$(BOARD_DIR)$(DELIM)scripts$(DELIM)ld-userland.script)
USER_HEXFILE += $(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx_user.hex)
USER_SRECFILE += $(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx_user.srec)
USER_BINFILE += $(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx_user.bin)
USER_LDFLAGS = -melf64lriscv --undefined=$(ENTRYPT) --entry=$(ENTRYPT) $(USER_LDSCRIPT)
USER_LDLIBS = $(patsubst lib%,-l%,$(basename $(notdir $(USERLIBS))))
USER_LIBGCC = "${shell "$(CC)" $(ARCHCPUFLAGS) -print-libgcc-file-name}"
# Source files
CSRCS = k230_userspace.c
COBJS = $(CSRCS:.c=$(OBJEXT))
OBJS = $(COBJS)
# Targets:
all: $(TOPDIR)$(DELIM)nuttx_user.elf $(TOPDIR)$(DELIM)User.map
.PHONY: nuttx_user.elf depend clean distclean
$(COBJS): %$(OBJEXT): %.c
$(call COMPILE, $<, $@)
# Create the nuttx_user.elf file containing all of the user-mode code
nuttx_user.elf: $(OBJS)
$(Q) $(LD) -o $@ $(USER_LDFLAGS) $(USER_LIBPATHS) $(OBJS) --start-group $(USER_LDLIBS) --end-group $(USER_LIBGCC)
$(TOPDIR)$(DELIM)nuttx_user.elf: nuttx_user.elf
@echo "LD: nuttx_user.elf"
$(Q) cp -a $^ $(TOPDIR)$(DELIM)$^
ifeq ($(CONFIG_INTELHEX_BINARY),y)
@echo "CP: nuttx_user.hex"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O ihex $^ $(USER_HEXFILE)
endif
ifeq ($(CONFIG_MOTOROLA_SREC),y)
@echo "CP: nuttx_user.srec"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O srec $^ $(USER_SRECFILE)
endif
ifeq ($(CONFIG_RAW_BINARY),y)
@echo "CP: nuttx_user.bin"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O binary $^ $(USER_BINFILE)
endif
$(TOPDIR)$(DELIM)User.map: nuttx_user.elf
@echo "MK: User.map"
$(Q) $(NM) -n $^ >$(TOPDIR)$(DELIM)User.map
$(Q) $(CROSSDEV)size $^
.depend:
depend: .depend
clean:
$(call DELFILE, nuttx_user.elf)
$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.*")
$(call DELFILE, "$(TOPDIR)$(DELIM)User.map")
$(call CLEAN)
distclean: clean

100
boards/risc-v/k230/canmv230/kernel/k230_userspace.c Normal file
View file

@ -0,0 +1,100 @@
/****************************************************************************
* boards/risc-v/k230/canmv230/kernel/k230_userspace.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdlib.h>
#include <nuttx/arch.h>
#include <nuttx/mm/mm.h>
#include <nuttx/wqueue.h>
#include <nuttx/userspace.h>
#if defined(CONFIG_BUILD_PROTECTED) && !defined(__KERNEL__)
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#ifndef CONFIG_NUTTX_USERSPACE
# error "CONFIG_NUTTX_USERSPACE not defined"
#endif
/****************************************************************************
* Public Data
****************************************************************************/
/* These 'addresses' of these values are setup by the linker script. */
extern uint8_t _stext[]; /* Start of .text */
extern uint8_t _etext[]; /* End_1 of .text + .rodata */
extern const uint8_t _eronly[]; /* End+1 of read only section (.text + .rodata) */
extern uint8_t _sdata[]; /* Start of .data */
extern uint8_t _edata[]; /* End+1 of .data */
extern uint8_t _sbss[]; /* Start of .bss */
extern uint8_t _ebss[]; /* End+1 of .bss */
extern uint8_t __ld_usram_end[]; /* End+1 of user ram section */
const struct userspace_s userspace locate_data(".userspace") =
{
/* General memory map */
.us_entrypoint = CONFIG_INIT_ENTRYPOINT,
.us_textstart = (uintptr_t)_stext,
.us_textend = (uintptr_t)_etext,
.us_datasource = (uintptr_t)_eronly,
.us_datastart = (uintptr_t)_sdata,
.us_dataend = (uintptr_t)_edata,
.us_bssstart = (uintptr_t)_sbss,
.us_bssend = (uintptr_t)_ebss,
.us_heapend = (uintptr_t)__ld_usram_end,
/* Memory manager heap structure */
.us_heap = &g_mmheap,
/* Task/thread startup routines */
.task_startup = nxtask_startup,
/* Signal handler trampoline */
.signal_handler = up_signal_handler,
/* User-space work queue support (declared in include/nuttx/wqueue.h) */
#ifdef CONFIG_LIBC_USRWORK
.work_usrstart = work_usrstart,
#endif
};
/****************************************************************************
* Public Functions
****************************************************************************/
#endif /* CONFIG_BUILD_PROTECTED && !__KERNEL__ */

12
boards/risc-v/k230/canmv230/scripts/Make.defs
View file

@ -25,6 +25,8 @@ include $(TOPDIR)/arch/risc-v/src/common/Toolchain.defs
ifeq ($(CONFIG_ARCH_CHIP_K230),y)
ifeq ($(CONFIG_BUILD_KERNEL),y)
LDSCRIPT = ld-kernel.script
else ifeq ($(CONFIG_BUILD_PROTECTED),y)
LDSCRIPT = ld-protected.script
else
LDSCRIPT = ld-flat.script
endif
@ -51,6 +53,8 @@ LDELFFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/binfmt/libelf/gnu-elf.ld)
# POSTBUILD management
# KERNEL build needs real ROMFS and SBI wrapping
ifeq ($(CONFIG_BUILD_KERNEL),y)
ifeq ($(wildcard $(BOARD_DIR)$(DELIM)src$(DELIM)romfs_boot.c),)
define POSTBUILD
@ -63,3 +67,11 @@ define POSTBUILD
endef
endif
endif
# PROTECTED build needs pad-combine operations
ifeq ($(CONFIG_BUILD_PROTECTED),y)
define POSTBUILD
$(Q) echo "pad-combine nuttx.bin and nuttx_user.bin to try on target."
endef
endif

122
boards/risc-v/k230/canmv230/scripts/ld-protected.script Normal file
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@ -0,0 +1,122 @@
/****************************************************************************
* boards/risc-v/k230/canmv230/scripts/ld-protected.script
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/* NOTE: This shares memory layout with ld-userland.script */
MEMORY
{
kflash (rx) : ORIGIN = 0x8000000, LENGTH = 256K /* w/ cache */
uflash (rx) : ORIGIN = 0x8040000, LENGTH = 256K /* w/ cache */
ksram (rwx) : ORIGIN = 0x8200000, LENGTH = 1024K /* w/ cache */
usram (rwx) : ORIGIN = 0x8300000, LENGTH = 1024K /* w/ cache */
}
OUTPUT_ARCH("riscv")
/* Provide these to avoid using config files for them */
__uflash_start = ORIGIN(uflash);
__uflash_size = LENGTH(uflash);
__usram_start = ORIGIN(usram);
__usram_size = LENGTH(usram);
/* Provide the kernel boundaries as well */
__kflash_start = ORIGIN(kflash);
__kflash_size = LENGTH(kflash);
__ksram_start = ORIGIN(ksram);
__ksram_size = LENGTH(ksram);
__ksram_end = ORIGIN(ksram) + LENGTH(ksram);
ENTRY(_stext)
EXTERN(__start)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.start .start.*)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.* .srodata .srodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > kflash
.init_section : ALIGN(4) {
_sinit = ABSOLUTE(.);
KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP(*(.init_array .ctors))
_einit = ABSOLUTE(.);
} > kflash
_eronly = ABSOLUTE(.);
.data : ALIGN(4) {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.sdata .sdata.* .sdata2.*)
*(.gnu.linkonce.d.*)
*(.gnu.linkonce.s.*)
CONSTRUCTORS
. = ALIGN(4);
_edata = ABSOLUTE(.);
} > ksram AT > kflash
PROVIDE(__global_pointer$ = _sdata + ((_edata - _sdata) / 2));
.bss : ALIGN(4) {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.sbss .sbss.*)
*(.gnu.linkonce.b.*)
*(.gnu.linkonce.sb.*)
*(COMMON)
} > ksram
/* Page tables here, align to 4K boundary */
.pgtables (NOLOAD) : ALIGN(0x1000) {
*(.pgtables)
. = ALIGN(32);
_ebss = ABSOLUTE(.);
} > ksram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

112
boards/risc-v/k230/canmv230/scripts/ld-userland.script Normal file
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@ -0,0 +1,112 @@
/****************************************************************************
* boards/risc-v/k230/canmv230/scripts/ld-userland.script
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/* NOTE: This shares memory layout with ld-protected.script */
MEMORY
{
kflash (rx) : ORIGIN = 0x8000000, LENGTH = 256K /* w/ cache */
uflash (rx) : ORIGIN = 0x8040000, LENGTH = 256K /* w/ cache */
ksram (rwx) : ORIGIN = 0x8200000, LENGTH = 1024K /* w/ cache */
usram (rwx) : ORIGIN = 0x8300000, LENGTH = 1024K /* w/ cache */
}
OUTPUT_ARCH("riscv")
SECTIONS
{
/* section info */
__ld_uflash_start = ORIGIN(uflash);
__ld_uflash_end = ORIGIN(uflash)+ LENGTH(uflash);
__ld_uflash_size = LENGTH(uflash);
__ld_usram_start = ORIGIN(usram);
__ld_usram_end = ORIGIN(usram)+ LENGTH(usram);
__ld_usram_size = LENGTH(usram);
.userspace : {
*(.userspace)
} > uflash
.text : {
_stext = ABSOLUTE(.);
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.* .srodata .srodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > uflash
.init_section : {
_sinit = ABSOLUTE(.);
KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP(*(.init_array .ctors))
_einit = ABSOLUTE(.);
} > uflash
__exidx_start = ABSOLUTE(.);
__exidx_end = ABSOLUTE(.);
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.sdata .sdata.* .sdata2.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
. = ALIGN(4);
_edata = ABSOLUTE(.);
} > usram AT > uflash
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.sbss .sbss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(4);
_ebss = ABSOLUTE(.);
} > usram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}