diff options
Diffstat (limited to 'nuttx/configs/sam3u-ek/scripts')
-rw-r--r-- | nuttx/configs/sam3u-ek/scripts/kernel.ld | 152 | ||||
-rwxr-xr-x | nuttx/configs/sam3u-ek/scripts/user.ld | 133 |
2 files changed, 285 insertions, 0 deletions
diff --git a/nuttx/configs/sam3u-ek/scripts/kernel.ld b/nuttx/configs/sam3u-ek/scripts/kernel.ld new file mode 100644 index 000000000..34c5d53cf --- /dev/null +++ b/nuttx/configs/sam3u-ek/scripts/kernel.ld @@ -0,0 +1,152 @@ +/**************************************************************************** + * configs/sam3u-ek/scripts/kernel.ld + * + * Copyright (C) 2011, 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/* The AT91SAM3U-4 has 256Kb of FLASH beginning at address 0x0008:0000, + * 32Kb of SRAM beginning at address 0x2000:0000, and 16Kb of SRAM beginning + * at address 0x2008:000 (used only for heap). When booting from FLASH, + * FLASH memory is aliased to address 0x0000:0000 where the code expects to + * begin execution by jumping to the entry point in the 0x0800:0000 address + * range. + * + * For MPU support, the kernel-mode NuttX section is assumed to be 64Kb of + * FLASH and 4Kb of SRAM. That, of course, can be optimized as needed (See + * also configs/sam3u-ek/knsh/ld.script + */ + +MEMORY +{ + /* 256Kb FLASH */ + + kflash (rx) : ORIGIN = 0x00080000, LENGTH = 64K + uflash (rx) : ORIGIN = 0x00090000, LENGTH = 192K + + /* 32Kb SRAM */ + + ksram1 (rwx) : ORIGIN = 0x20000000, LENGTH = 4K + usram1 (rwx) : ORIGIN = 0x20001000, LENGTH = 28K + + /* 16Kb SRAM */ + + sram2 (rwx) : ORIGIN = 0x20080000, LENGTH = 16K +} + +/* Make sure that the critical memory management functions are in user-space. + * Currently, the plan is that the memory manager will reside in user-space + * but be usable both by kernel- and user-space code + */ + +EXTERN(umm_initialize) +EXTERN(umm_addregion) +EXTERN(umm_trysemaphore) +EXTERN(umm_givesemaphore) + +EXTERN(malloc) +EXTERN(realloc) +EXTERN(zalloc) +EXTERN(free) + +OUTPUT_ARCH(arm) + +SECTIONS +{ + .userspace : { + *(.userspace) + } > uflash + + .text : { + _stext = ABSOLUTE(.); + *(.vectors) + *(.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 + _edata = ABSOLUTE(.); + } > usram1 AT > uflash + + .bss : { + _sbss = ABSOLUTE(.); + *(.bss .bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + _ebss = ABSOLUTE(.); + } > usram1 + + /* 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) } +} diff --git a/nuttx/configs/sam3u-ek/scripts/user.ld b/nuttx/configs/sam3u-ek/scripts/user.ld new file mode 100755 index 000000000..fb82d679b --- /dev/null +++ b/nuttx/configs/sam3u-ek/scripts/user.ld @@ -0,0 +1,133 @@ +/**************************************************************************** + * configs/sam3u-ek/scripts/ld.script + * + * Copyright (C) 2011, 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/* The AT91SAM3U-4 has 256Kb of FLASH beginning at address 0x0008:0000, + * 32Kb of SRAM beginning at address 0x2000:0000, and 16Kb of SRAM beginning + * at address 0x2008:000 (used only for heap). When booting from FLASH, + * FLASH memory is aliased to address 0x0000:0000 where the code expects to + * begin execution by jumping to the entry point in the 0x0800:0000 address + * range. + * + * For MPU support, the kernel-mode NuttX section is assumed to be 64Kb of + * FLASH and 4Kb of SRAM. That, of course, can be optimized as needed (See + * also configs/sam3u-ek/kernel/kernel.ld. + */ + +MEMORY +{ + /* 256Kb FLASH */ + + kflash (rx) : ORIGIN = 0x00080000, LENGTH = 64K + uflash (rx) : ORIGIN = 0x00090000, LENGTH = 192K + + /* 32Kb SRAM */ + + ksram1 (rwx) : ORIGIN = 0x20000000, LENGTH = 4K + usram1 (rwx) : ORIGIN = 0x20001000, LENGTH = 28K + + /* 16Kb SRAM */ + + sram2 (rwx) : ORIGIN = 0x20080000, LENGTH = 16K +} + +OUTPUT_ARCH(arm) +ENTRY(_stext) +SECTIONS +{ + .text : { + _stext = ABSOLUTE(.); + *(.vectors) + *(.text .text.*) + *(.fixup) + *(.gnu.warning) + *(.rodata .rodata.*) + *(.gnu.linkonce.t.*) + *(.glue_7) + *(.glue_7t) + *(.got) + *(.gcc_except_table) + *(.gnu.linkonce.r.*) + _etext = ABSOLUTE(.); + } > kflash + + .init_section : { + _sinit = ABSOLUTE(.); + *(.init_array .init_array.*) + _einit = ABSOLUTE(.); + } > kflash + + .ARM.extab : { + *(.ARM.extab*) + } > kflash + + __exidx_start = ABSOLUTE(.); + .ARM.exidx : { + *(.ARM.exidx*) + } > kflash + __exidx_end = ABSOLUTE(.); + + _eronly = ABSOLUTE(.); + + .data : { + _sdata = ABSOLUTE(.); + *(.data .data.*) + *(.gnu.linkonce.d.*) + CONSTRUCTORS + _edata = ABSOLUTE(.); + } > ksram1 AT > kflash + + .bss : { + _sbss = ABSOLUTE(.); + *(.bss .bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + _ebss = ABSOLUTE(.); + } > ksram1 + + /* 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) } +} |