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2010-08-20 <yann.sionneau@telecom-sudparis.eu>

Browse Source 
Add Milkymist BSP developed as part of GSOC 2010.
	* ChangeLog, Makefile.am, README, bsp_specs, configure.ac,
	preinstall.am, Documentation/uart.txt, include/.cvsignore,
	include/bsp.h, include/system_conf.h, include/tm27.h,
	make/custom/milkymist.cfg, startup/linkcmds: New files.
This commit is contained in:
Joel Sherrill
2010-08-20 21:22:27 +00:00
parent 565023562f
commit 8affb5a9ed
13 changed files with 732 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
c/src/lib/libbsp/lm32/milkymist/ChangeLog Normal file
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2010-08-20 <yann.sionneau@telecom-sudparis.eu>
Add Milkymist BSP developed as part of GSOC 2010.
* ChangeLog, Makefile.am, README, bsp_specs, configure.ac,
preinstall.am, Documentation/uart.txt, include/.cvsignore,
include/bsp.h, include/system_conf.h, include/tm27.h,
make/custom/milkymist.cfg, startup/linkcmds: New files.
08 / 12 / 2010 : <Yann Sionneau> Added Milkymist BSP

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c/src/lib/libbsp/lm32/milkymist/Documentation/uart.txt Normal file
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Initialization :
set the CSR_UART_DIVISOR to the correct VALUE,
depending on the internal frequency of the LatticeMico32 softcore.
for the ML401 board, this value is calculated using this formula : clk_frequency/230400/16
clk_frequency = 100000000 Hz
=> we must set CSR_UART_DIVISOR to 27
How to send a byte to uart :
void writechar(char c)
{
CSR_UART_RXTX = c;
while(!(irq_pending() & IRQ_UARTTX));
irq_ack(IRQ_UARTTX);
}
How to receive a byte from uart :
char readchar()
{
char c;
while(!(irq_pending() & IRQ_UARTRX));
irq_ack(IRQ_UARTRX);
c = CSR_UART_RXTX;
return c;
}

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c/src/lib/libbsp/lm32/milkymist/Makefile.am Normal file
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##
## $Id$
##
ACLOCAL_AMFLAGS = -I ../../../../aclocal
include $(top_srcdir)/../../../../automake/compile.am
include_bspdir = $(includedir)/bsp
dist_project_lib_DATA = bsp_specs
include_HEADERS = include/bsp.h
include_HEADERS += include/tm27.h
nodist_include_HEADERS = include/bspopts.h
nodist_include_bsp_HEADERS = ../../shared/include/bootcard.h
DISTCLEANFILES = include/bspopts.h
noinst_PROGRAMS =
include_HEADERS += ../../shared/include/coverhd.h
include_HEADERS += include/system_conf.h
noinst_LIBRARIES = libbspstart.a
libbspstart_a_SOURCES = ../../lm32/shared/start/start.S
project_lib_DATA = start.$(OBJEXT)
dist_project_lib_DATA += startup/linkcmds
noinst_LIBRARIES += libbsp.a
libbsp_a_SOURCES =
libbsp_a_LIBADD =
# startup
libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsplibc.c \
../../shared/bsppost.c ../shared/startup/bspstart.c \
../../shared/bspreset.c ../../shared/bsppretaskinghook.c \
../../shared/bspgetworkarea.c ../../shared/bootcard.c \
../../shared/sbrk.c ../../lm32/shared/startup/setvec.c \
../../shared/gnatinstallhandler.c
# clock
libbsp_a_SOURCES += ../../lm32/shared/milkymist_clock/ckinit.c
# console
libbsp_a_SOURCES += ../../lm32/shared/milkymist_console/console.c \
../../lm32/shared/milkymist_console/uart.c
# timer
libbsp_a_SOURCES += ../../lm32/shared/milkymist_timer/timer.c
# framebuffer
libbsp_a_SOURCES += ../../lm32/shared/milkymist_framebuffer/framebuffer.c
# gpio
libbsp_a_SOURCES += ../../lm32/shared/milkymist_gpio/gpio.c
if HAS_NETWORKING
noinst_PROGRAMS += network.rel
network_rel_SOURCES = ../../lm32/shared/milkymist_networking/network.c \
../../lm32/shared/milkymist_networking/mm_crc32.c
network_rel_CPPFLAGS = $(AM_CPPFLAGS) -D__INSIDE_RTEMS_BSD_TCPIP_STACK__
network_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
libbsp_a_LIBADD += network.rel
endif
include $(srcdir)/preinstall.am
include $(top_srcdir)/../../../../automake/local.am

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c/src/lib/libbsp/lm32/milkymist/README Normal file
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#
# $Id$
#
This is a BSP written by Yann Sionneau <yann.sionneau@telecom-sudparis.eu>
as part of Google Summer of Code 2010.
This is a BSP to make RTEMS run on Milkymist One board using Milkymist SoC
It provides driver for timer, uart, ethernet, framebuffer so far.
Milkymist SoC is running @ 83 MHz with 128 MB of 32-bit DDR400 SDRAM
The SoC is based on a XC6SLX45 Spartan-6 FPGA running
the LatticeMico32 softcore.
More informations available at : http://www.milkymist.org/
Information about the porting can be found in Yann Sionneau's blog
at http://sionneau.net/
Milkymist is a project leaded by Sebastien Bourdeauducq (aka lekernel)

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c/src/lib/libbsp/lm32/milkymist/bsp_specs Normal file
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%rename endfile old_endfile
%rename startfile old_startfile
%rename link old_link
*startfile:
%{!qrtems: %(old_startfile)} \
%{!nostdlib: %{qrtems: start.o%s crti.o%s crtbegin.o%s -e start}}
*link:
%{!qrtems: %(old_link)} %{qrtems: -dc -dp -N}
*endfile:
%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s crtn.o%s}

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c/src/lib/libbsp/lm32/milkymist/configure.ac Normal file
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## Process this file with autoconf to produce a configure script.
##
## $Id$
AC_PREREQ(2.60)
AC_INIT([rtems-c-src-lib-libbsp-lm32-milkymist],
[_RTEMS_VERSION],[http://www.rtems.org/bugzilla])
AC_CONFIG_SRCDIR([bsp_specs])
RTEMS_TOP(../../../../../..)
RTEMS_CANONICAL_TARGET_CPU
AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.10])
RTEMS_BSP_CONFIGURE
RTEMS_PROG_CC_FOR_TARGET
RTEMS_CANONICALIZE_TOOLS
RTEMS_PROG_CCAS
RTEMS_CHECK_NETWORKING
AM_CONDITIONAL(HAS_NETWORKING,test "$HAS_NETWORKING" = "yes")
RTEMS_BSPOPTS_SET([ON_SIMULATOR],[*],[])
RTEMS_BSPOPTS_HELP([ON_SIMULATOR],
[If defined, this indicates the BSP is being built to run on the lm32
simulator in GDB. This enables fast idle support which speeds up the
clock ticks while the idle task is running so time spent in the idle
task is minimized. This significantly reduces the wall time required
to execute the RTEMS test suites. It also enables a special exit and
alternate printk support.])
RTEMS_BSP_CLEANUP_OPTIONS(0,0)
# Explicitly list all Makefiles here
AC_CONFIG_FILES([Makefile])
AC_OUTPUT

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c/src/lib/libbsp/lm32/milkymist/include/.cvsignore Normal file
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stamp-h
stamp-h.in
bspopts.h
bspopts.h.in

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c/src/lib/libbsp/lm32/milkymist/include/bsp.h Normal file
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/* bsp.h
*
* This include file contains all board IO definitions.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*
* Yann Sionneau <yann.sionneau@telecom-sudparis.eu>, (GSoC 2010)
* Telecom SudParis
*/
#ifndef _BSP_H
#define _BSP_H
#include <stdint.h>
#include <bspopts.h>
#include <rtems.h>
#include <rtems/console.h>
#include <rtems/clockdrv.h>
#ifdef __cplusplus
extern "C" {
#endif
#define BSP_DIRTY_MEMORY 1
#define BSP_HAS_FRAME_BUFFER 1
#define GPIO_DRIVER_TABLE_ENTRY { gpio_initialize, \
gpio_open, gpio_close, gpio_read, gpio_write, gpio_control}
/*
* lm32 requires certain aligment of mbuf because unaligned uint32_t
* accesses are not handled properly.
*/
#define CPU_U32_FIX
#if defined(RTEMS_NETWORKING)
#include <rtems/rtems_bsdnet.h>
struct rtems_bsdnet_ifconfig;
extern int rtems_minimac_driver_attach (struct rtems_bsdnet_ifconfig *config,
int attaching);
#define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_minimac_driver_attach
#define RTEMS_BSP_NETWORK_DRIVER_NAME "minimac0"
#endif
/*
* Simple spin delay in microsecond units for device drivers.
* This is very dependent on the clock speed of the target.
*/
#define rtems_bsp_delay( microseconds ) \
{ \
}
/* functions */
lm32_isr_entry set_vector( /* returns old vector */
rtems_isr_entry handler, /* isr routine */
rtems_vector_number vector, /* vector number */
int type /* RTEMS or RAW intr */
);
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */

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c/src/lib/libbsp/lm32/milkymist/include/system_conf.h Normal file
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/* system_conf.h
* Global System conf
*
* Milkymist port of RTEMS
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*
*/
#ifndef __SYSTEM_CONFIG_H_
#define __SYSTEM_CONFIG_H_
#define CPU_FREQUENCY (83333333)
#define UART_BAUD_RATE (115200)
#define MM_TIMER1_COMPARE (0xe0001024)
#define MM_TIMER1_COUNTER (0xe0001028)
#define MM_TIMER1_CONTROL (0xe0001020)
#define MM_TIMER0_COMPARE (0xe0001014)
#define MM_TIMER0_COUNTER (0xe0001018)
#define MM_TIMER0_CONTROL (0xe0001010)
#define TIMER_ENABLE (0x01)
#define TIMER_AUTORESTART (0x02)
#define MM_VGA_RESET_MODE (0x01)
#define MM_VGA_RESET (0xe0003000)
#define MM_VGA_BASEADDRESS (0xe0003024)
#define MM_VGA_BASEADDRESS_ACT (0xe0003028)
#define MM_MINIMAC_SETUP (0xe0009000)
#define MM_MINIMAC_STATE0 (0xe0009008)
#define MM_MINIMAC_ADDR0 (0xe000900C)
#define MM_MINIMAC_COUNT0 (0xe0009010)
#define MM_MINIMAC_STATE1 (0xe0009014)
#define MM_MINIMAC_ADDR1 (0xe0009018)
#define MM_MINIMAC_COUNT1 (0xe000901C)
#define MM_MINIMAC_STATE2 (0xe0009020)
#define MM_MINIMAC_ADDR2 (0xe0009024)
#define MM_MINIMAC_COUNT2 (0xe0009028)
#define MM_MINIMAC_STATE3 (0xe000902C)
#define MM_MINIMAC_ADDR3 (0xe0009030)
#define MM_MINIMAC_COUNT3 (0xe0009034)
#define MM_MINIMAC_TXREMAINING (0xe000903C)
#define MM_MINIMAC_TXADR (0xe0009038)
#endif /* __SYSTEM_CONFIG_H_ */

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c/src/lib/libbsp/lm32/milkymist/include/tm27.h Normal file
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/*
* tm27.h
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _RTEMS_TMTEST27
#error "This is an RTEMS internal file you must not include directly."
#endif
#ifndef __tm27_h
#define __tm27_h
/*
* Stuff for Time Test 27
*/
#define MUST_WAIT_FOR_INTERRUPT 0
#define Install_tm27_vector( handler ) set_vector( (handler), 0, 1 )
#define Cause_tm27_intr() /* empty */
#define Clear_tm27_intr() /* empty */
#define Lower_tm27_intr() /* empty */
#endif

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c/src/lib/libbsp/lm32/milkymist/make/custom/milkymist.cfg Normal file
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#
# Config file for the milkymist BSP
#
# Choices for CPU_MODEL:
# tiny (no cache)
# standard (instruction cache)
# fast (instruction and data cache)
RTEMS_CPU = lm32
RTEMS_CPU_MODEL = lm32
include $(RTEMS_ROOT)/make/custom/default.cfg
# This contains the compiler options necessary to select the CPU model
# and (hopefully) optimize for it.
CPU_CFLAGS = -mbarrel-shift-enabled -mmultiply-enabled \
-mdivide-enabled -msign-extend-enabled
# optimize flag: typically -O2
# ATM, doesn't work with optimization levels > 0
CFLAGS_OPTIMIZE_V = -O2 -g
define bsp-post-link
$(OBJCOPY) -O binary --strip-all $(basename $@).exe \
-R entry -R exceptions $(basename $@)$(DOWNEXT)
$(default-bsp-post-link)
endef

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c/src/lib/libbsp/lm32/milkymist/preinstall.am Normal file
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## Automatically generated by ampolish3 - Do not edit
if AMPOLISH3
$(srcdir)/preinstall.am: Makefile.am
$(AMPOLISH3) $(srcdir)/Makefile.am > $(srcdir)/preinstall.am
endif
PREINSTALL_DIRS =
DISTCLEANFILES += $(PREINSTALL_DIRS)
all-local: $(TMPINSTALL_FILES)
TMPINSTALL_FILES =
CLEANFILES = $(TMPINSTALL_FILES)
all-am: $(PREINSTALL_FILES)
PREINSTALL_FILES =
CLEANFILES += $(PREINSTALL_FILES)
$(PROJECT_LIB)/$(dirstamp):
@$(MKDIR_P) $(PROJECT_LIB)
@: > $(PROJECT_LIB)/$(dirstamp)
PREINSTALL_DIRS += $(PROJECT_LIB)/$(dirstamp)
$(PROJECT_INCLUDE)/$(dirstamp):
@$(MKDIR_P) $(PROJECT_INCLUDE)
@: > $(PROJECT_INCLUDE)/$(dirstamp)
PREINSTALL_DIRS += $(PROJECT_INCLUDE)/$(dirstamp)
$(PROJECT_INCLUDE)/bsp/$(dirstamp):
@$(MKDIR_P) $(PROJECT_INCLUDE)/bsp
@: > $(PROJECT_INCLUDE)/bsp/$(dirstamp)
PREINSTALL_DIRS += $(PROJECT_INCLUDE)/bsp/$(dirstamp)
$(PROJECT_LIB)/bsp_specs: bsp_specs $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/bsp_specs
PREINSTALL_FILES += $(PROJECT_LIB)/bsp_specs
$(PROJECT_INCLUDE)/bsp.h: include/bsp.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp.h
$(PROJECT_INCLUDE)/tm27.h: include/tm27.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/tm27.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/tm27.h
$(PROJECT_INCLUDE)/bspopts.h: include/bspopts.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bspopts.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bspopts.h
$(PROJECT_INCLUDE)/bsp/bootcard.h: ../../shared/include/bootcard.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/bootcard.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/bootcard.h
$(PROJECT_INCLUDE)/coverhd.h: ../../shared/include/coverhd.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/coverhd.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/coverhd.h
$(PROJECT_INCLUDE)/system_conf.h: include/system_conf.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/system_conf.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/system_conf.h
$(PROJECT_LIB)/start.$(OBJEXT): start.$(OBJEXT) $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/start.$(OBJEXT)
TMPINSTALL_FILES += $(PROJECT_LIB)/start.$(OBJEXT)
$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds

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c/src/lib/libbsp/lm32/milkymist/startup/linkcmds Normal file
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OUTPUT_FORMAT("elf32-lm32", "elf32-lm32",
"elf32-lm32")
OUTPUT_ARCH(lm32)
ENTRY(_start)
/* Do we need any of these for elf?
__DYNAMIC = 0; */
/*
* Declare some sizes. Heap is sized at whatever ram space is left.
*/
RamBase = DEFINED(RamBase) ? RamBase : 0x40000000;
RamSize = DEFINED(RamSize) ? RamSize : 64M;
HeapSize = DEFINED(HeapSize) ? HeapSize : 2M;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x2000;
PROVIDE (__stack = 0);
MEMORY {
sdram : ORIGIN = 0x40000000 , LENGTH = 64M
}
SECTIONS
{
.boot :
{
KEEP (*(.boot))
} > sdram
/* Read-only sections, merged into text segment: */
.interp : { *(.interp) } > sdram
.hash : { *(.hash) } > sdram
.dynsym : { *(.dynsym) } > sdram
.dynstr : { *(.dynstr) } > sdram
.gnu.version : { *(.gnu.version) } > sdram
.gnu.version_d : { *(.gnu.version_d) } > sdram
.gnu.version_r : { *(.gnu.version_r) } > sdram
.rela.text :
{ *(.rela.text) *(.rela.gnu.linkonce.t*) } > sdram
.rela.data :
{ *(.rela.data) *(.rela.gnu.linkonce.d*) } > sdram
.rela.rodata :
{ *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > sdram
.rela.got : { *(.rela.got) } > sdram
.rela.got1 : { *(.rela.got1) } > sdram
.rela.got2 : { *(.rela.got2) } > sdram
.rela.ctors : { *(.rela.ctors) } > sdram
.rela.dtors : { *(.rela.dtors) } > sdram
.rela.init : { *(.rela.init) } > sdram
.rela.fini : { *(.rela.fini) } > sdram
.rela.bss : { *(.rela.bss) } > sdram
.rela.plt : { *(.rela.plt) } > sdram
.rela.sdata : { *(.rela.sdata) } > sdram
.rela.sbss : { *(.rela.sbss) } > sdram
.rela.sdata2 : { *(.rela.sdata2) } > sdram
.rela.sbss2 : { *(.rela.sbss2) } > sdram
.rela.dyn : { *(.rela.dyn) } > sdram
.init : { KEEP(*(.init)) } > sdram
.text :
{
*(.text*)
/*
* Special FreeBSD sysctl sections.
*/
. = ALIGN (16);
__start_set_sysctl_set = .;
*(set_sysctl_*);
__stop_set_sysctl_set = ABSOLUTE(.);
*(set_domain_*);
*(set_pseudo_*);
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t*)
} > sdram
.fini : { _fini = .; KEEP(*(.fini)) } > sdram
.rodata : { *(.rodata*) *(.gnu.linkonce.r*) } > sdram
.rodata1 : { *(.rodata1) } > sdram
/* Adjust the address for the data segment. We want to adjust up to
the same address within the page on the next page up. */
. = ALIGN(0x10000) + (. & (0x10000 - 1));
/* Ensure the __preinit_array_start label is properly aligned. We
could instead move the label definition inside the section, but
the linker would then create the section even if it turns out to
be empty, which isn't pretty. */
. = ALIGN(32 / 8);
PROVIDE (__preinit_array_start = .);
.preinit_array : { *(.preinit_array) } >sdram
PROVIDE (__preinit_array_end = .);
PROVIDE (__init_array_start = .);
.init_array : { *(.init_array) } >sdram
PROVIDE (__init_array_end = .);
PROVIDE (__fini_array_start = .);
.fini_array : { *(.fini_array) } >sdram
PROVIDE (__fini_array_end = .);
/* _SDA2_BASE_ = __SDATA2_START__ + 0xe000; */
.sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >sdram
.sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
/* avoid empty sdata2/sbss2 area -- __eabi would not set up r2
* which may be important if run-time loading is used
*/
. += 1;
} >sdram
.eh_frame : { *.(eh_frame) } >sdram
/* NOTE: if the BSP uses page tables, the correctness of
* '_etext' (and __DATA_START__) is CRUCIAL - otherwise,
* an invalid mapping may result!!!
*/
_etext = .;
PROVIDE (etext = .);
/* Adjust the address for the data segment. We want to adjust up to
the same address within the page on the next page up. It would
be more correct to do this:
. = ALIGN(0x40000) + (ALIGN(8) & (0x40000 - 1));
The current expression does not correctly handle the case of a
text segment ending precisely at the end of a page; it causes the
data segment to skip a page. The above expression does not have
this problem, but it will currently (2/95) cause BFD to allocate
a single segment, combining both text and data, for this case.
This will prevent the text segment from being shared among
multiple executions of the program; I think that is more
important than losing a page of the virtual address space (note
that no actual memory is lost; the page which is skipped can not
be referenced). */
. = ALIGN(0x1000);
.data ALIGN(0x1000) :
{
/* NOTE: if the BSP uses page tables, the correctness of
* '__DATA_START__' (and _etext) is CRUCIAL - otherwise,
* an invalid mapping may result!!!
*/
PROVIDE(__DATA_START__ = ABSOLUTE(.) );
*(.data .data.* .gnu.linkonce.d*)
SORT(CONSTRUCTORS)
} > sdram
.data1 : { *(.data1) } > sdram
PROVIDE (__EXCEPT_START__ = .);
.gcc_except_table : {
*(.gcc_except_table)
*(.gcc_except_table.*)
} > sdram
PROVIDE (__EXCEPT_END__ = .);
.got1 : { *(.got1) } > sdram
/* Put .ctors and .dtors next to the .got2 section, so that the pointers
get relocated with -mrelocatable. Also put in the .fixup pointers.
The current compiler no longer needs this, but keep it around for 2.7.2 */
PROVIDE (_GOT2_START_ = .);
.got2 : { *(.got2) } > sdram
.dynamic : { *(.dynamic) } > sdram
.ctors :
{
/* gcc uses crtbegin.o to find the start of
the constructors, so we make sure it is
first. Because this is a wildcard, it
doesn't matter if the user does not
actually link against crtbegin.o; the
linker won't look for a file to match a
wildcard. The wildcard also means that it
doesn't matter which directory crtbegin.o
is in. */
KEEP (*crtbegin.o(.ctors))
/* We don't want to include the .ctor section from
from the crtend.o file until after the sorted ctors.
The .ctor section from the crtend file contains the
end of ctors marker and it must be last */
KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
} > sdram
.dtors :
{
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} > sdram
PROVIDE (_FIXUP_START_ = .);
.fixup : { *(.fixup) } > sdram
PROVIDE (_FIXUP_END_ = .);
PROVIDE (_GOT2_END_ = .);
PROVIDE (_GOT_START_ = .);
.got : { *(.got) } > sdram
.got.plt : { *(.got.plt) } > sdram
PROVIDE (_GOT_END_ = .);
.jcr : { KEEP (*(.jcr)) } > sdram
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
we can shorten the on-disk segment size. */
/* _SDA_BASE_ = __SDATA_START__ + 0xe000; */
.sdata : { *(.sdata*) *(.gnu.linkonce.s.*) } >sdram
_edata = .;
_gp = .;
PROVIDE (edata = .);
.sbss :
{
_clear_start = .;
PROVIDE (__sbss_start = .);
*(.dynsbss)
*(.sbss* .gnu.linkonce.sb.*)
*(.scommon)
/* avoid empty sdata/sbss area -- __eabi would not set up r13
* which may be important if run-time loading is used
*/
. += 1;
. = ALIGN(16);
PROVIDE (__sbss_end = .);
} > sdram
.plt : { *(.plt) } > sdram
.bss :
{
PROVIDE (__bss_start = .);
*(.dynbss)
*(.bss .bss* .gnu.linkonce.b*)
*(COMMON)
. = ALIGN(16);
_end = . ;
__rtems_end = . ;
PROVIDE (end = .);
. += _StackSize;
_fstack = .;
WorkAreaBase = .;
. = ALIGN (16);
_stack_init = .;
_clear_end = .;
} > sdram
/DISCARD/ :
{
*(.comment)
}
/* 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) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
/* These must appear regardless of . */
}