boards/arm/tiva/lm3s6965-ek: Add PROTECTED support
Largely copy-and-paste from stm32f4discovery. Also arch/arm/src/armv7-m/mpu.h: Ensure RBAR alignment Fix crashes on init task startup I observed on qemu-system-arm -M lm3s6965evb.
This commit is contained in:
YAMAMOTO Takashi
Gregory Nutt
parent
b9682171f4
commit
d5fc2458ba
@ -282,6 +282,25 @@ static inline void mpu_configure_region(uintptr_t base, size_t size,
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uint32_t regval;
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uint8_t l2size;
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uint8_t subregions;
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uintptr_t alignedbase;
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/* Ensure the base address alignment
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*
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* ARMv7-M Architecture Reference Manual
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* B3.5.8 MPU Region Base Address Register, MPU_RBAR
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* "Software must ensure that the value written to the ADDR field
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* aligns with the size of the selected region."
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*/
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alignedbase = base & MPU_RBAR_ADDR_MASK;
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l2size = mpu_log2regionceil(size + base - alignedbase);
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alignedbase &= ~((1 << l2size) - 1);
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l2size = mpu_log2regionceil(size + base - alignedbase);
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DEBUGASSERT(alignedbase + (1 << l2size) >= base + size);
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DEBUGASSERT(l2size == 5 || alignedbase + (1 << (l2size - 1)) < base + size);
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DEBUGASSERT((alignedbase & MPU_RBAR_ADDR_MASK) == alignedbase);
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DEBUGASSERT((alignedbase & ((1 << l2size) - 1)) == 0);
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/* Select the region */
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@ -289,11 +308,10 @@ static inline void mpu_configure_region(uintptr_t base, size_t size,
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/* Select the region base address */
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putreg32((base & MPU_RBAR_ADDR_MASK) | region | MPU_RBAR_VALID, MPU_RBAR);
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putreg32(alignedbase | region | MPU_RBAR_VALID, MPU_RBAR);
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/* Select the region size and the sub-region map */
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l2size = mpu_log2regionceil(size);
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subregions = mpu_subregion(base, size, l2size);
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/* The configure the region */
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107
boards/arm/tiva/lm3s6965-ek/kernel/Makefile
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107
boards/arm/tiva/lm3s6965-ek/kernel/Makefile
Normal file
@ -0,0 +1,107 @@
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############################################################################
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# boards/arm/tiva/lm3s6965-ek/kernel/Makefile
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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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-include $(TOPDIR)/Make.defs
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# This is the directory for the board-specific header files
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BOARD_INCLUDE = $(TOPDIR)$(DELIM)boards$(DELIM)$(CONFIG_ARCH)$(DELIM)$(CONFIG_ARCH_CHIP)$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)include
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# The entry point name (if none is provided in the .config file)
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CONFIG_USER_ENTRYPOINT ?= user_start
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ENTRYPT = $(patsubst "%",%,$(CONFIG_USER_ENTRYPOINT))
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# Get the paths to the libraries and the links script path in format that
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# is appropriate for the host OS
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ifeq ($(WINTOOL),y)
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# Windows-native toolchains
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USER_LIBPATHS = ${shell for path in $(USERLIBS); do dir=`dirname $(TOPDIR)$(DELIM)$$path`;echo "-L\"`cygpath -w $$dir`\"";done}
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USER_LDSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)boards$(DELIM)$(CONFIG_ARCH)$(DELIM)$(CONFIG_ARCH_CHIP)$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)memory.ld}"
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USER_LDSCRIPT += -T "${shell cygpath -w $(TOPDIR)$(DELIM)boards$(DELIM)$(CONFIG_ARCH)$(DELIM)$(CONFIG_ARCH_CHIP)$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)user-space.ld}"
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USER_HEXFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.hex}"
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USER_SRECFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.srec}"
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USER_BINFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.bin}"
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else
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# Linux/Cygwin-native toolchain
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USER_LIBPATHS = $(addprefix -L$(TOPDIR)$(DELIM),$(dir $(USERLIBS)))
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USER_LDSCRIPT = -T$(TOPDIR)$(DELIM)boards$(DELIM)$(CONFIG_ARCH)$(DELIM)$(CONFIG_ARCH_CHIP)$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)memory.ld
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USER_LDSCRIPT += -T$(TOPDIR)$(DELIM)boards$(DELIM)$(CONFIG_ARCH)$(DELIM)$(CONFIG_ARCH_CHIP)$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)user-space.ld
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USER_HEXFILE += "$(TOPDIR)$(DELIM)nuttx_user.hex"
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USER_SRECFILE += "$(TOPDIR)$(DELIM)nuttx_user.srec"
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USER_BINFILE += "$(TOPDIR)$(DELIM)nuttx_user.bin"
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endif
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USER_LDFLAGS = --undefined=$(ENTRYPT) --entry=$(ENTRYPT) $(USER_LDSCRIPT)
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USER_LDLIBS = $(patsubst lib%,-l%,$(basename $(notdir $(USERLIBS))))
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USER_LIBGCC = "${shell "$(CC)" $(ARCHCPUFLAGS) -print-libgcc-file-name}"
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# Source files
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CSRCS = lm_userspace.c
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COBJS = $(CSRCS:.c=$(OBJEXT))
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OBJS = $(COBJS)
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# Targets:
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all: $(TOPDIR)$(DELIM)nuttx_user.elf $(TOPDIR)$(DELIM)User.map
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.PHONY: nuttx_user.elf depend clean distclean
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$(COBJS): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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# Create the nuttx_user.elf file containing all of the user-mode code
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nuttx_user.elf: $(OBJS)
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$(Q) $(LD) -o $@ $(USER_LDFLAGS) $(USER_LIBPATHS) $(OBJS) --start-group $(USER_LDLIBS) $(USER_LIBGCC) --end-group
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$(TOPDIR)$(DELIM)nuttx_user.elf: nuttx_user.elf
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@echo "LD: nuttx_user.elf"
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$(Q) cp -a nuttx_user.elf $(TOPDIR)$(DELIM)nuttx_user.elf
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ifeq ($(CONFIG_INTELHEX_BINARY),y)
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@echo "CP: nuttx_user.hex"
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$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O ihex nuttx_user.elf $(USER_HEXFILE)
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endif
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ifeq ($(CONFIG_MOTOROLA_SREC),y)
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@echo "CP: nuttx_user.srec"
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$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O srec nuttx_user.elf $(USER_SRECFILE)
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endif
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ifeq ($(CONFIG_RAW_BINARY),y)
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@echo "CP: nuttx_user.bin"
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$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O binary nuttx_user.elf $(USER_BINFILE)
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endif
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$(TOPDIR)$(DELIM)User.map: nuttx_user.elf
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@echo "MK: User.map"
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$(Q) $(NM) nuttx_user.elf >$(TOPDIR)$(DELIM)User.map
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$(Q) $(CROSSDEV)size nuttx_user.elf
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.depend:
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depend: .depend
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clean:
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$(call DELFILE, nuttx_user.elf)
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$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.*")
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$(call DELFILE, "$(TOPDIR)$(DELIM)User.map")
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$(call CLEAN)
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distclean: clean
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117
boards/arm/tiva/lm3s6965-ek/kernel/lm_userspace.c
Normal file
117
boards/arm/tiva/lm3s6965-ek/kernel/lm_userspace.c
Normal file
@ -0,0 +1,117 @@
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/****************************************************************************
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* boards/arm/tiva/lm3s6965-ek/kernel/lm_userspace.c
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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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdlib.h>
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#include <nuttx/arch.h>
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#include <nuttx/mm/mm.h>
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#include <nuttx/wqueue.h>
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#include <nuttx/userspace.h>
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#if defined(CONFIG_BUILD_PROTECTED) && !defined(__KERNEL__)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#ifndef CONFIG_NUTTX_USERSPACE
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# error "CONFIG_NUTTX_USERSPACE not defined"
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#endif
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#if CONFIG_NUTTX_USERSPACE != 0x00020000
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# error "CONFIG_NUTTX_USERSPACE must be 0x00020000 to match memory.ld"
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#endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* These 'addresses' of these values are setup by the linker script. They are
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* not actual uint32_t storage locations! They are only used meaningfully in the
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* following way:
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*
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* - The linker script defines, for example, the symbol_sdata.
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* - The declaration extern uint32_t _sdata; makes C happy. C will believe
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* that the value _sdata is the address of a uint32_t variable _data (it is
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* not!).
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* - We can recover the linker value then by simply taking the address of
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* of _data. like: uint32_t *pdata = &_sdata;
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*/
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extern uint32_t _stext; /* Start of .text */
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extern uint32_t _etext; /* End_1 of .text + .rodata */
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extern const uint32_t _eronly; /* End+1 of read only section (.text + .rodata) */
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extern uint32_t _sdata; /* Start of .data */
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extern uint32_t _edata; /* End+1 of .data */
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extern uint32_t _sbss; /* Start of .bss */
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extern uint32_t _ebss; /* End+1 of .bss */
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/* This is the user space entry point */
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int CONFIG_USER_ENTRYPOINT(int argc, char *argv[]);
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const struct userspace_s userspace __attribute__ ((section (".userspace"))) =
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{
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/* General memory map */
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.us_entrypoint = (main_t)CONFIG_USER_ENTRYPOINT,
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.us_textstart = (uintptr_t)&_stext,
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.us_textend = (uintptr_t)&_etext,
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.us_datasource = (uintptr_t)&_eronly,
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.us_datastart = (uintptr_t)&_sdata,
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.us_dataend = (uintptr_t)&_edata,
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.us_bssstart = (uintptr_t)&_sbss,
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.us_bssend = (uintptr_t)&_ebss,
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/* Memory manager heap structure */
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.us_heap = &g_mmheap,
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/* Task/thread startup routines */
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.task_startup = task_startup,
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#ifndef CONFIG_DISABLE_PTHREAD
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.pthread_startup = pthread_startup,
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#endif
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/* Signal handler trampoline */
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.signal_handler = up_signal_handler,
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/* User-space work queue support (declared in include/nuttx/wqueue.h) */
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#ifdef CONFIG_LIB_USRWORK
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.work_usrstart = work_usrstart,
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#endif
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};
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#endif /* CONFIG_BUILD_PROTECTED && !__KERNEL__ */
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96
boards/arm/tiva/lm3s6965-ek/scripts/kernel-space.ld
Normal file
96
boards/arm/tiva/lm3s6965-ek/scripts/kernel-space.ld
Normal file
@ -0,0 +1,96 @@
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/****************************************************************************
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* boards/arm/tiva/lm3s6965-ek/scripts/kernel-space.ld
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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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/* NOTE: This depends on the memory.ld script having been included prior to
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* this script.
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*/
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OUTPUT_ARCH(arm)
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ENTRY(_stext)
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SECTIONS
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{
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.text : {
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_stext = ABSOLUTE(.);
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*(.vectors)
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*(.text .text.*)
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*(.fixup)
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*(.gnu.warning)
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*(.rodata .rodata.*)
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*(.gnu.linkonce.t.*)
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*(.glue_7)
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*(.glue_7t)
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*(.got)
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*(.gcc_except_table)
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*(.gnu.linkonce.r.*)
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_etext = ABSOLUTE(.);
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} > kflash
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.init_section : {
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_sinit = ABSOLUTE(.);
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*(.init_array .init_array.*)
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_einit = ABSOLUTE(.);
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} > kflash
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.ARM.extab : {
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*(.ARM.extab*)
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} > kflash
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__exidx_start = ABSOLUTE(.);
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.ARM.exidx : {
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*(.ARM.exidx*)
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} > kflash
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__exidx_end = ABSOLUTE(.);
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_eronly = ABSOLUTE(.);
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.data : {
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_sdata = ABSOLUTE(.);
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*(.data .data.*)
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*(.gnu.linkonce.d.*)
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CONSTRUCTORS
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. = ALIGN(4);
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_edata = ABSOLUTE(.);
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} > ksram AT > kflash
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.bss : {
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_sbss = ABSOLUTE(.);
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*(.bss .bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN(4);
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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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38
boards/arm/tiva/lm3s6965-ek/scripts/memory.ld
Normal file
38
boards/arm/tiva/lm3s6965-ek/scripts/memory.ld
Normal file
@ -0,0 +1,38 @@
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/****************************************************************************
|
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* boards/arm/tiva/lm3s6965-ek/scripts/memory.ld
|
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*
|
||||
* 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.
|
||||
*
|
||||
****************************************************************************/
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|
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/* The LM3S6965 has 256Kb of FLASH beginning at address 0x0000:0000 and 64Kb
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* of SRAM beginning at 0x2000:0000.
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*/
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MEMORY
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{
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/* 256Kb FLASH */
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kflash (rx) : ORIGIN = 0x00000000, LENGTH = 128K
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uflash (rx) : ORIGIN = 0x00020000, LENGTH = 128K
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xflash (rx) : ORIGIN = 0x00040000, LENGTH = 0K
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/* 64Kb of contiguous SRAM */
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ksram (rwx) : ORIGIN = 0x20000000, LENGTH = 16K
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usram (rwx) : ORIGIN = 0x20004000, LENGTH = 16K
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xsram (rwx) : ORIGIN = 0x20008000, LENGTH = 32K
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}
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98
boards/arm/tiva/lm3s6965-ek/scripts/user-space.ld
Normal file
98
boards/arm/tiva/lm3s6965-ek/scripts/user-space.ld
Normal file
@ -0,0 +1,98 @@
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/****************************************************************************
|
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* boards/arm/tiva/lm3s6965-ek/scripts/user-space.ld
|
||||
*
|
||||
* 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 depends on the memory.ld script having been included prior to
|
||||
* this script.
|
||||
*/
|
||||
|
||||
OUTPUT_ARCH(arm)
|
||||
SECTIONS
|
||||
{
|
||||
.userspace : {
|
||||
*(.userspace)
|
||||
} > uflash
|
||||
|
||||
.text : {
|
||||
_stext = ABSOLUTE(.);
|
||||
*(.text .text.*)
|
||||
*(.fixup)
|
||||
*(.gnu.warning)
|
||||
*(.rodata .rodata.*)
|
||||
*(.gnu.linkonce.t.*)
|
||||
*(.glue_7)
|
||||
*(.glue_7t)
|
||||
*(.got)
|
||||
*(.gcc_except_table)
|
||||
*(.gnu.linkonce.r.*)
|
||||
_etext = ABSOLUTE(.);
|
||||
} > uflash
|
||||
|
||||
.init_section : {
|
||||
_sinit = ABSOLUTE(.);
|
||||
*(.init_array .init_array.*)
|
||||
_einit = ABSOLUTE(.);
|
||||
} > uflash
|
||||
|
||||
.ARM.extab : {
|
||||
*(.ARM.extab*)
|
||||
} > uflash
|
||||
|
||||
__exidx_start = ABSOLUTE(.);
|
||||
.ARM.exidx : {
|
||||
*(.ARM.exidx*)
|
||||
} > uflash
|
||||
|
||||
__exidx_end = ABSOLUTE(.);
|
||||
|
||||
_eronly = ABSOLUTE(.);
|
||||
|
||||
.data : {
|
||||
_sdata = ABSOLUTE(.);
|
||||
*(.data .data.*)
|
||||
*(.gnu.linkonce.d.*)
|
||||
CONSTRUCTORS
|
||||
. = ALIGN(4);
|
||||
_edata = ABSOLUTE(.);
|
||||
} > usram AT > uflash
|
||||
|
||||
.bss : {
|
||||
_sbss = ABSOLUTE(.);
|
||||
*(.bss .bss.*)
|
||||
*(.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) }
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user