Add some preliminary linker scripts in order to begin building the SAMA5 target

4 files changed, 399 insertions, 2 deletions

diff --git a/nuttx/configs/sama5d3x-ek/ostest/Make.defs b/nuttx/configs/sama5d3x-ek/ostest/Make.defs
index 371dd5bc5..b6daed3f7 100644
--- a/nuttx/configs/sama5d3x-ek/ostest/Make.defs
+++ b/nuttx/configs/sama5d3x-ek/ostest/Make.defs
@@ -1,7 +1,7 @@
 ############################################################################
 # configs/sama5d3x-ek/ostest/Make.defs
 #
-#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -37,7 +37,7 @@ include ${TOPDIR}/.config
 include ${TOPDIR}/tools/Config.mk
 include ${TOPDIR}$(DELIM)arch$(DELIM)arm$(DELIM)src$(DELIM)armv7-a$(DELIM)Toolchain.defs
 
-LDSCRIPT = ld.script
+LDSCRIPT = isram.ld
 
 ifeq ($(WINTOOL),y)
   # Windows-native toolchains
diff --git a/nuttx/configs/sama5d3x-ek/scripts/ddram.ld b/nuttx/configs/sama5d3x-ek/scripts/ddram.ld
new file mode 100644
index 000000000..bebda34a5
--- /dev/null
+++ b/nuttx/configs/sama5d3x-ek/scripts/ddram.ld
@@ -0,0 +1,122 @@
+/****************************************************************************
+ * configs/ea3131/scripts/ddram.ld
+ *
+ *   Copyright (C) 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 SAMA5D3 has 128 KB of ISRAM beginning at virtual address 0x0030:0000.
+ * This memory configuration, however, loads into the 64 MB SDRAM on board
+ * the SAMA5D3x-EK which lies at 0x2000:0000
+ */
+
+MEMORY
+{
+	isram (W!RX) : ORIGIN = 0x300000, LENGTH = 128K
+	sdram (W!RX) : ORIGIN = 0x20000000, LENGTH = 64M
+}
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(entry)
+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.*)
+		*(.ARM.extab*)
+		*(.gnu.linkonce.armextab.*)
+		_etext = ABSOLUTE(.);
+	} > sdram
+
+	.init_section : {
+		_sinit = ABSOLUTE(.);
+		*(.init_array .init_array.*)
+		_einit = ABSOLUTE(.);
+	} > sdram
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} > sdram
+
+	/* .ARM.exidx is sorted, so has to go in its own output section.  */
+
+	PROVIDE_HIDDEN (__exidx_start = .);
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > sdram
+	PROVIDE_HIDDEN (__exidx_end = .);
+
+	_eronly = ABSOLUTE(.);
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > sdram
+
+	.bss : {
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > sdram
+
+	/* 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/sama5d3x-ek/scripts/isram.ld b/nuttx/configs/sama5d3x-ek/scripts/isram.ld
new file mode 100644
index 000000000..9ffe7fbf0
--- /dev/null
+++ b/nuttx/configs/sama5d3x-ek/scripts/isram.ld
@@ -0,0 +1,118 @@
+/****************************************************************************
+ * configs/sama5d3x-ek/scripts/isram.ld
+ *
+ *   Copyright (C) 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 SAMA5D3 has 128 KB of ISRAM beginning at virtual address 0x0030:0000. */
+
+MEMORY
+{
+	isram (W!RX) : ORIGIN = 0x300000, LENGTH = 128K
+}
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(entry)
+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.*)
+		*(.ARM.extab*)
+		*(.gnu.linkonce.armextab.*)
+		_etext = ABSOLUTE(.);
+	} > isram
+
+	.init_section : {
+		_sinit = ABSOLUTE(.);
+		*(.init_array .init_array.*)
+		_einit = ABSOLUTE(.);
+	} > isram
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} > isram
+
+	/* .ARM.exidx is sorted, so has to go in its own output section.  */
+
+	PROVIDE_HIDDEN (__exidx_start = .);
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > isram
+	PROVIDE_HIDDEN (__exidx_end = .);
+
+	_eronly = ABSOLUTE(.);
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > isram
+
+	.bss : {
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > isram
+
+	/* 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/sama5d3x-ek/scripts/pg-sram.ld b/nuttx/configs/sama5d3x-ek/scripts/pg-sram.ld
new file mode 100644
index 000000000..17eb81d56
--- /dev/null
+++ b/nuttx/configs/sama5d3x-ek/scripts/pg-sram.ld
@@ -0,0 +1,157 @@
+/****************************************************************************
+ * configs/sama5d3x-ek/scripts/pg-isram.ld
+ *
+ *   Copyright (C) 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 SAMA5D3 has 128 KB of ISRAM beginning at virtual address 0x0030:0000.
+ * The .text vitual address space begins at the same location as the physical
+ * address space:  0x0030:0000.  The virtual space is broken up into three
+ * regions:
+ *
+ *                                           PHYSICAL         VIRTUAL
+ *   NAME    DESCRIPTION                 SIZE    START    SIZE    START
+ *  -------- -------------------------- ----- ----------- ------- -----------
+ *   locked  Pages locked in memory.     40KB 0x0030:0000  40KB   0x0030:0000
+ *   paged   Pages in nonvolatile store. 48KB 0x0030:a000  48KB   0x0030:a000
+ *   data    .data/.bss/heap.            24KB 0x0031:6000  24KB   0x0031:6000
+ *           Reserved for page table     16KB 0x0031:c000  16KB   0x0031:c000
+ *  -------- -------------------------- ----- ----------- ------- -----------
+ *                                      128KB 0x0032 0000 128KB   0x0032 0000
+ *
+ * These region sizes must match the size in pages specified for each region
+ * in the NuttX configuration file:  CONFIG_PAGING_NLOCKED, CONFIG_PAGING_NVPAGED,
+ * and CONFIG_PAGING_NDATA.
+ *
+ * NOTE 1: The locked region is should be big here so that you can enable lots of
+ * debug output without overflowing the locked region.  32KB would probably be
+ * plenty if this were a real, optimized application.
+ *
+ * NOTE 2: Different compilers will compile the code to different sizes.  If you
+ * get a link time error saying that the locked region is full, you may have to
+ * re-organize this memory layout (here and in defconfig) to make the locked
+ * region even bigger.
+ */
+
+MEMORY
+{
+    locked (rx) : ORIGIN = 0x00300000, LENGTH = 40K
+    paged  (rx) : ORIGIN = 0x0030a000, LENGTH = 48K
+    data   (rw) : ORIGIN = 0x00316000, LENGTH = 24K
+}
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(entry)
+ENTRY(_stext)
+
+SECTIONS
+{
+	.locked : {
+		_slocked = ABSOLUTE(.);
+		*(.vectors)
+		up_head.o locked.r (.text .text.*)
+		up_head.o locked.r (.fixup)
+		up_head.o locked.r (.gnu.warning)
+		up_head.o locked.r (.rodata .rodata.*)
+		up_head.o locked.r (.gnu.linkonce.t.*)
+		up_head.o locked.r (.glue_7)
+		up_head.o locked.r (.glue_7t)
+		up_head.o locked.r (.got)
+		up_head.o locked.r (.gcc_except_table)
+		up_head.o locked.r (.gnu.linkonce.r.*)
+		_elocked = ABSOLUTE(.);
+	} >locked
+
+	.init_section : {
+		_sinit = ABSOLUTE(.);
+		*(.init_array .init_array.*)
+		_einit = ABSOLUTE(.);
+	} > locked
+
+	/* .ARM.exidx is sorted, so has to go in its own output section.  */
+
+	PROVIDE_HIDDEN (__exidx_start = .);
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > isram
+	PROVIDE_HIDDEN (__exidx_end = .);
+
+	_eronly = ABSOLUTE(.);
+
+	.paged : {
+		_spaged = ABSOLUTE(.);
+		*(.text .text.*)
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata .rodata.*)
+		*(.gnu.linkonce.t.*)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
+		*(.ARM.extab*)
+		*(.gnu.linkonce.armextab.*)
+		_epaged = ABSOLUTE(.);
+	} > paged
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > data AT > locked
+
+	.bss : {
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > data
+					/* 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) }
+}