RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

bsps/x86_64: Use interrupt stack for init stack

Browse Source 
Update #3459.
This commit is contained in:
Sebastian Huber
2018-11-16 08:55:30 +01:00
parent 0ce6bf3ff5
commit 5f5bbd10fb
4 changed files with 47 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
bsps/x86_64/amd64/start/linkcmds
View File

@@ -16,6 +16,7 @@
OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64",
"elf64-x86-64")
OUTPUT_ARCH(i386:x86-64)
STARTUP(start.o)
ENTRY(_start)
HeapSize = DEFINED(HeapSize) ? HeapSize :

41
bsps/x86_64/amd64/start/start.S Normal file
View File

@@ -0,0 +1,41 @@
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2018 embedded brains GmbH
*
* 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.
*
* 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.
*/
.text
.section .text._start,"ax",@progbits
.p2align 4,,15
.globl _start
.type _start, @function
_start:
.cfi_startproc
movabsq $_ISR_Stack_area_end, %rsp
subq $8, %rsp
.cfi_def_cfa_offset 16
xorl %edi, %edi
movabsq $boot_card, %rax
call *%rax
.cfi_endproc

36
bsps/x86_64/amd64/start/start.c
View File

@@ -1,36 +0,0 @@
/*
* Copyright (c) 2018.
* Amaan Cheval <amaan.cheval@gmail.com>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <bsp.h>
#include <start.h>
#include <bsp/bootcard.h>
// XXX: _start can pass boot arguments to boot_card
// https://lists.rtems.org/pipermail/devel/2018-June/022123.html
void _start(void)
{
boot_card("");
}

7
c/src/lib/libbsp/x86_64/amd64/Makefile.am
View File

@@ -7,7 +7,11 @@ dist_project_lib_DATA = ../../../../../../bsps/x86_64/amd64/start/bsp_specs
noinst_PROGRAMS =
project_lib_DATA = linkcmds
start.$(OBJEXT): ../../../../../../bsps/x86_64/amd64/start/start.S
$(CPPASCOMPILE) -o $@ -c $<
project_lib_DATA = start.$(OBJEXT)
project_lib_DATA += linkcmds
project_lib_LIBRARIES = librtemsbsp.a
librtemsbsp_a_SOURCES =
@@ -22,7 +26,6 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspfatal-default.c
#
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-default.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/x86_64/amd64/start/bspstart.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/x86_64/amd64/start/start.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/x86_64/amd64/start/page.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/sbrk.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/getentropy/getentropy-cpucounter.c