forked from Imagelibrary/rtems
2008-03-22 Joel Sherrill <joel.sherrill@oarcorp.com>
* configure.ac, startup/exit.c: Add BSP_PRESS_KEY_FOR_RESET configuration option. When this is set to one, a clean exit of an application will result in the BSP resetting the hardware without waiting for a human to press a key. * start/start.S, startup/linkcmds: Replace the linkcmds with a version very closely based upon the default in binutils 2.18 for this target. This eliminated weird failures with C++ dtors even in C applications. We had an extra _ on a symbol used in start.S.
This commit is contained in:
Joel Sherrill
@@ -1,3 +1,14 @@
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2008-03-22 Joel Sherrill <joel.sherrill@oarcorp.com>
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* configure.ac, startup/exit.c: Add BSP_PRESS_KEY_FOR_RESET
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configuration option. When this is set to one, a clean exit of an
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application will result in the BSP resetting the hardware without
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||||
waiting for a human to press a key.
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* start/start.S, startup/linkcmds: Replace the linkcmds with a
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||||
version very closely based upon the default in binutils 2.18 for
|
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this target. This eliminated weird failures with C++ dtors even
|
||||
in C applications. We had an extra _ on a symbol used in start.S.
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2008-03-12 Joel Sherrill <joel.sherrill@oarcorp.com>
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* configure.ac: Fix typo.
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@@ -40,6 +40,13 @@ RTEMS_BSPOPTS_HELP([IDE_USE_SECONDARY_INTERFACE],
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- and you have at least one disk attached to this interface
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- and you do want to access disks attached to this interface])
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#define BSP_PRESS_KEY_FOR_RESET 1
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RTEMS_BSPOPTS_SET([BSP_PRESS_KEY_FOR_RESET],[*],[1])
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RTEMS_BSPOPTS_HELP([BSP_PRESS_KEY_FOR_RESET],
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[Determines, whether this BSP will wait for a key to be pressed
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before rebooting the PC. This is useful for unattended PC deployments
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])
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## if this is an i386, does gas have good code16 support?
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RTEMS_I386_GAS_CODE16
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AM_CONDITIONAL(RTEMS_GAS_CODE16,[test "$RTEMS_GAS_CODE16" = "yes"])
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@@ -154,7 +154,7 @@ SYM (_establish_stack):
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SYM (zero_bss):
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cld # make direction flag count up
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movl $ SYM (_end), ecx # find end of .bss
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movl $ SYM (_bss_start), edi # edi = beginning of .bss
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movl $ SYM (__bss_start), edi # edi = beginning of .bss
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subl edi, ecx # ecx = size of .bss in bytes
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shrl ecx # size of .bss in longs
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shrl ecx
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@@ -1,34 +1,33 @@
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/*-------------------------------------------------------------------------+
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| exit.c v1.1 - PC386 BSP - 1997/08/07
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+--------------------------------------------------------------------------+
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| Routines to shutdown and reboot the PC.
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+--------------------------------------------------------------------------+
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| (C) Copyright 1997 -
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| - NavIST Group - Real-Time Distributed Systems and Industrial Automation
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|
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| http://pandora.ist.utl.pt
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|
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| Instituto Superior Tecnico * Lisboa * PORTUGAL
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+--------------------------------------------------------------------------+
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| Disclaimer:
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|
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| This file is provided "AS IS" without warranty of any kind, either
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| expressed or implied.
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+--------------------------------------------------------------------------+
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| This code is based on:
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| exit.c,v 1.2 1995/12/19 20:07:36 joel Exp - go32 BSP
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| With the following copyright notice:
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| **************************************************************************
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| * COPYRIGHT (c) 1989-1999.
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| * On-Line Applications Research Corporation (OAR).
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| *
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| * The license and distribution terms for this file may be
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| * found in found in the file LICENSE in this distribution or at
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| * http://www.rtems.com/license/LICENSE.
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| **************************************************************************
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|
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| $Id$
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+--------------------------------------------------------------------------*/
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/*
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* Routines to shutdown and reboot the PC.
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*
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* (C) Copyright 1997 -
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* - NavIST Group - Real-Time Distributed Systems and Industrial Automation
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* http://pandora.ist.utl.pt
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* Instituto Superior Tecnico * Lisboa * PORTUGAL
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*
|
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* Disclaimer:
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||||
*
|
||||
* This file is provided "AS IS" without warranty of any kind, either
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||||
* expressed or implied.
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||||
*
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*
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* This code is based on:
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* exit.c,v 1.2 1995/12/19 20:07:36 joel Exp - go32 BSP
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* With the following copyright notice:
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* **************************************************************************
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* * COPYRIGHT (c) 1989-1999.
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||||
* * On-Line Applications Research Corporation (OAR).
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||||
* *
|
||||
* * The license and distribution terms for this file may be
|
||||
* * found in found in the file LICENSE in this distribution or at
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* * http://www.rtems.com/license/LICENSE.
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||||
* **************************************************************************
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||||
*
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||||
* Joel: It has been modified many times since submission.
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*
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||||
* $Id$
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||||
*/
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#include <stdio.h>
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#include <bsp.h>
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@@ -37,15 +36,22 @@
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void bsp_cleanup(void)
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{
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unsigned char ch;
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static char line[]="EXECUTIVE SHUTDOWN! Any key to reboot...";
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||||
/*
|
||||
* AT this point, the console driver is disconnected => we must
|
||||
* At this point, the console driver is disconnected => we must
|
||||
* use polled output/input. This is exactly what printk
|
||||
* does.
|
||||
*/
|
||||
printk("\n");
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printk(line);
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printk( "\nEXECUTIVE SHUTDOWN! " );
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|
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#if (BSP_PRESS_KEY_FOR_RESET)
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{
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||||
unsigned char ch;
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printk( "Any key to reboot..." );
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ch = BSP_poll_char();
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}
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#else
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printk( "resetting system\n" );
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#endif
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rtemsReboot();
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}
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||||
|
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@@ -1,54 +1,72 @@
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||||
/*-------------------------------------------------------------------------+
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||||
| linkcmds v1.1 - PC386 BSP - 1997/08/07
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||||
+--------------------------------------------------------------------------+
|
||||
| This file contains directives for the GNU linker which are specific to the
|
||||
| PC386 bsp.
|
||||
+--------------------------------------------------------------------------+
|
||||
| (C) Copyright 1997 -
|
||||
| - NavIST Group - Real-Time Distributed Systems and Industrial Automation
|
||||
|
|
||||
| http://pandora.ist.utl.pt
|
||||
|
|
||||
| Instituto Superior Tecnico * Lisboa * PORTUGAL
|
||||
+--------------------------------------------------------------------------+
|
||||
| Disclaimer:
|
||||
|
|
||||
| This file is provided "AS IS" without warranty of any kind, either
|
||||
| expressed or implied.
|
||||
+--------------------------------------------------------------------------+
|
||||
| This code is based on:
|
||||
| linkcmds,v 1.3 1995/12/19 20:06:58 joel Exp - FORCE CPU386 BSP
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||||
| With the following copyright notice:
|
||||
| **************************************************************************
|
||||
| * COPYRIGHT (c) 1989-1999.
|
||||
| * On-Line Applications Research Corporation (OAR).
|
||||
| *
|
||||
| * The license and distribution terms for this file may be
|
||||
| * found in found in the file LICENSE in this distribution or at
|
||||
| * http://www.rtems.com/license/LICENSE.
|
||||
| **************************************************************************
|
||||
|
|
||||
| $Id$
|
||||
+--------------------------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* Copy of default "default linker script, for normal executables"
|
||||
* provided with binutils 2.18 with minor modifications for use
|
||||
* as pc386 linkcmds. These changes include:
|
||||
*
|
||||
* + sections commented out marked with "XXX commented out --joel"
|
||||
* + addition of m_hdr section
|
||||
* + addition of FreeBSD sysctl sections
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
/*
|
||||
* XXX commented out --joel
|
||||
OUTPUT_FORMAT("elf32-i386", "elf32-i386",
|
||||
"elf32-i386")
|
||||
OUTPUT_ARCH(i386)
|
||||
ENTRY(_start)
|
||||
*/
|
||||
SECTIONS
|
||||
{
|
||||
/* .m_hdr :
|
||||
{
|
||||
. = ALIGN(4);
|
||||
*(.m_hdr)
|
||||
}
|
||||
/* Read-only sections, merged into text segment: */
|
||||
/*
|
||||
* XXX commented out --joel
|
||||
PROVIDE (__executable_start = 0x08048000); . = 0x08048000 + SIZEOF_HEADERS;
|
||||
*/
|
||||
.interp : { *(.interp) }
|
||||
.note.gnu.build-id : { *(.note.gnu.build-id) }
|
||||
.hash : { *(.hash) }
|
||||
.gnu.hash : { *(.gnu.hash) }
|
||||
.dynsym : { *(.dynsym) }
|
||||
.dynstr : { *(.dynstr) }
|
||||
.gnu.version : { *(.gnu.version) }
|
||||
.gnu.version_d : { *(.gnu.version_d) }
|
||||
.gnu.version_r : { *(.gnu.version_r) }
|
||||
.rel.init : { *(.rel.init) }
|
||||
.rela.init : { *(.rela.init) }
|
||||
.rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) }
|
||||
.rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
|
||||
.rel.fini : { *(.rel.fini) }
|
||||
.rela.fini : { *(.rela.fini) }
|
||||
.rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) }
|
||||
.rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
|
||||
.rel.data.rel.ro : { *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) }
|
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.rela.data.rel.ro : { *(.rela.data.rel.ro* .rela.gnu.linkonce.d.rel.ro.*) }
|
||||
.rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) }
|
||||
.rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
|
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.rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) }
|
||||
.rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
|
||||
.rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) }
|
||||
.rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
|
||||
.rel.ctors : { *(.rel.ctors) }
|
||||
.rela.ctors : { *(.rela.ctors) }
|
||||
.rel.dtors : { *(.rel.dtors) }
|
||||
.rela.dtors : { *(.rela.dtors) }
|
||||
.rel.got : { *(.rel.got) }
|
||||
.rela.got : { *(.rela.got) }
|
||||
.rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) }
|
||||
.rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
|
||||
.rel.plt : { *(.rel.plt) }
|
||||
.rela.plt : { *(.rela.plt) }
|
||||
.plt : { *(.plt) }
|
||||
.text :
|
||||
{
|
||||
_text_start = . ;
|
||||
. = ALIGN(4);
|
||||
*(.m_hdr)
|
||||
*(.text)
|
||||
*(.text.*)
|
||||
. = ALIGN (16);
|
||||
|
||||
*(.text .stub .text.* .gnu.linkonce.t.*)
|
||||
KEEP (*(.text.*personality*))
|
||||
/* .gnu.warning sections are handled specially by elf32.em. */
|
||||
*(.gnu.warning)
|
||||
/*
|
||||
* Special FreeBSD sysctl sections.
|
||||
*/
|
||||
@@ -59,56 +77,113 @@ SECTIONS
|
||||
*(set_domain_*);
|
||||
*(set_pseudo_*);
|
||||
|
||||
*(.eh_frame)
|
||||
. = ALIGN (16);
|
||||
} =0x90909090
|
||||
|
||||
*(.gnu.linkonce.t*)
|
||||
|
||||
/*
|
||||
* C++ constructors
|
||||
*/
|
||||
__CTOR_LIST__ = .;
|
||||
LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
|
||||
*(.ctors)
|
||||
LONG(0)
|
||||
__CTOR_END__ = .;
|
||||
__DTOR_LIST__ = .;
|
||||
LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
|
||||
*(.dtors)
|
||||
LONG(0)
|
||||
__DTOR_END__ = .;
|
||||
|
||||
_rodata_start = . ;
|
||||
*(.rodata*)
|
||||
*(.gnu.linkonce.r*)
|
||||
_erodata = ALIGN( 0x10 ) ;
|
||||
|
||||
*(.jcr)
|
||||
_etext = ALIGN( 0x10 ) ;
|
||||
}
|
||||
|
||||
.init : { *(.init) } = 0x9090
|
||||
.fini : { *(.fini) } = 0x9090
|
||||
.data ADDR( .fini ) + SIZEOF( .fini ):
|
||||
.init :
|
||||
{
|
||||
_data_start = . ;
|
||||
*(.data)
|
||||
*(.data.*)
|
||||
*(.gnu.linkonce.d*)
|
||||
*(.gcc_except_table*)
|
||||
_edata = ALIGN( 0x10 ) ;
|
||||
}
|
||||
|
||||
.bss ADDR( .data ) + SIZEOF( .data ):
|
||||
KEEP (*(.init))
|
||||
} =0x90909090
|
||||
.fini :
|
||||
{
|
||||
_bss_start = . ;
|
||||
*(.bss)
|
||||
*(.bss.*)
|
||||
KEEP (*(.fini))
|
||||
} =0x90909090
|
||||
PROVIDE (__etext = .);
|
||||
PROVIDE (_etext = .);
|
||||
PROVIDE (etext = .);
|
||||
.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
|
||||
.rodata1 : { *(.rodata1) }
|
||||
.eh_frame_hdr : { *(.eh_frame_hdr) }
|
||||
.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) }
|
||||
.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) }
|
||||
/* 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 (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
|
||||
/* Exception handling */
|
||||
.eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) }
|
||||
.gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
|
||||
/* Thread Local Storage sections */
|
||||
.tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
|
||||
.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
|
||||
.preinit_array :
|
||||
{
|
||||
PROVIDE_HIDDEN (__preinit_array_start = .);
|
||||
KEEP (*(.preinit_array))
|
||||
PROVIDE_HIDDEN (__preinit_array_end = .);
|
||||
}
|
||||
.init_array :
|
||||
{
|
||||
PROVIDE_HIDDEN (__init_array_start = .);
|
||||
KEEP (*(SORT(.init_array.*)))
|
||||
KEEP (*(.init_array))
|
||||
PROVIDE_HIDDEN (__init_array_end = .);
|
||||
}
|
||||
.fini_array :
|
||||
{
|
||||
PROVIDE_HIDDEN (__fini_array_start = .);
|
||||
KEEP (*(.fini_array))
|
||||
KEEP (*(SORT(.fini_array.*)))
|
||||
PROVIDE_HIDDEN (__fini_array_end = .);
|
||||
}
|
||||
.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))
|
||||
KEEP (*crtbegin?.o(.ctors))
|
||||
/* We don't want to include the .ctor section 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 *crtend?.o ) .ctors))
|
||||
KEEP (*(SORT(.ctors.*)))
|
||||
KEEP (*(.ctors))
|
||||
}
|
||||
.dtors :
|
||||
{
|
||||
KEEP (*crtbegin.o(.dtors))
|
||||
KEEP (*crtbegin?.o(.dtors))
|
||||
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
|
||||
KEEP (*(SORT(.dtors.*)))
|
||||
KEEP (*(.dtors))
|
||||
}
|
||||
.jcr : { KEEP (*(.jcr)) }
|
||||
.data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) }
|
||||
.dynamic : { *(.dynamic) }
|
||||
.got : { *(.got) }
|
||||
. = DATA_SEGMENT_RELRO_END (12, .);
|
||||
.got.plt : { *(.got.plt) }
|
||||
.data :
|
||||
{
|
||||
*(.data .data.* .gnu.linkonce.d.*)
|
||||
KEEP (*(.gnu.linkonce.d.*personality*))
|
||||
SORT(CONSTRUCTORS)
|
||||
}
|
||||
.data1 : { *(.data1) }
|
||||
_edata = .; PROVIDE (edata = .);
|
||||
__bss_start = .;
|
||||
.bss :
|
||||
{
|
||||
*(.dynbss)
|
||||
*(.bss .bss.* .gnu.linkonce.b.*)
|
||||
*(COMMON)
|
||||
_end = . ;
|
||||
__end = . ;
|
||||
/* Align here to ensure that the .bss section occupies space up to
|
||||
_end. Align after .bss to ensure correct alignment even if the
|
||||
.bss section disappears because there are no input sections.
|
||||
FIXME: Why do we need it? When there is no .bss section, we don't
|
||||
pad the .data section. */
|
||||
. = ALIGN(. != 0 ? 32 / 8 : 1);
|
||||
}
|
||||
|
||||
. = ALIGN(32 / 8);
|
||||
. = ALIGN(32 / 8);
|
||||
_end = .; PROVIDE (end = .);
|
||||
. = DATA_SEGMENT_END (.);
|
||||
/* Stabs debugging sections. */
|
||||
.stab 0 : { *(.stab) }
|
||||
.stabstr 0 : { *(.stabstr) }
|
||||
@@ -117,36 +192,34 @@ SECTIONS
|
||||
.stab.index 0 : { *(.stab.index) }
|
||||
.stab.indexstr 0 : { *(.stab.indexstr) }
|
||||
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|
||||
|
||||
/* 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 */
|
||||
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|
||||
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|
||||
|
||||
/* GNU DWARF 1 extensions */
|
||||
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|
||||
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|
||||
|
||||
/* DWARF 1.1 and DWARF 2 */
|
||||
.debug_aranges 0 : { *(.debug_aranges) }
|
||||
.debug_pubnames 0 : { *(.debug_pubnames) }
|
||||
|
||||
/* DWARF 2 */
|
||||
.debug_info 0 : { *(.debug_info) }
|
||||
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
|
||||
.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 . */
|
||||
/* DWARF 3 */
|
||||
.debug_pubtypes 0 : { *(.debug_pubtypes) }
|
||||
.debug_ranges 0 : { *(.debug_ranges) }
|
||||
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
|
||||
/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) }
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user