forked from Imagelibrary/rtems
bsps: Move startup files to bsps
Adjust build support files to new directory layout. This patch is a part of the BSP source reorganization. Update #3285.
This commit is contained in:
Sebastian Huber
9
bsps/lm32/lm32_evr/start/bsp_specs
Normal file
9
bsps/lm32/lm32_evr/start/bsp_specs
Normal file
@@ -0,0 +1,9 @@
|
||||
%rename endfile old_endfile
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%rename startfile old_startfile
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||||
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*startfile:
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||||
%{!qrtems: %(old_startfile)} \
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||||
%{!nostdlib: %{qrtems: crti.o%s crtbegin.o%s}}
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||||
|
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*endfile:
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%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s crtn.o%s}
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||||
309
bsps/lm32/lm32_evr/start/linkcmds
Normal file
309
bsps/lm32/lm32_evr/start/linkcmds
Normal file
@@ -0,0 +1,309 @@
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OUTPUT_FORMAT("elf32-lm32", "elf32-lm32",
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"elf32-lm32")
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OUTPUT_ARCH(lm32)
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ENTRY(start)
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STARTUP(start.o)
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/* Do we need any of these for elf?
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__DYNAMIC = 0; */
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|
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/*
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* Declare some sizes. Heap is sized at whatever ram space is left.
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*/
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RamBase = DEFINED(RamBase) ? RamBase : 0x08000000;
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RamSize = DEFINED(RamSize) ? RamSize : 32M;
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HeapSize = DEFINED(HeapSize) ? HeapSize : 2M;
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_StackSize = DEFINED(_StackSize) ? _StackSize : 0x2000;
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PROVIDE (__stack = 0);
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MEMORY {
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ebr : ORIGIN = 0x04000000 , LENGTH = 32k
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sdram : ORIGIN = 0x08000000 , LENGTH = 32M
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}
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SECTIONS
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{
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||||
.boot :
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{
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KEEP (*(.boot))
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} > ebr
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||||
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||||
/* Read-only sections, merged into text segment: */
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.interp : { *(.interp) } > sdram
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.hash : { *(.hash) } > sdram
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||||
.dynsym : { *(.dynsym) } > sdram
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||||
.dynstr : { *(.dynstr) } > sdram
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||||
.gnu.version : { *(.gnu.version) } > sdram
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||||
.gnu.version_d : { *(.gnu.version_d) } > sdram
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.gnu.version_r : { *(.gnu.version_r) } > sdram
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||||
.rela.text :
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{ *(.rela.text) *(.rela.gnu.linkonce.t*) } > sdram
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||||
.rela.data :
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{ *(.rela.data) *(.rela.gnu.linkonce.d*) } > sdram
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.rela.rodata :
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{ *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > sdram
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.rela.got : { *(.rela.got) } > sdram
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.rela.got1 : { *(.rela.got1) } > sdram
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.rela.got2 : { *(.rela.got2) } > sdram
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.rela.ctors : { *(.rela.ctors) } > sdram
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.rela.dtors : { *(.rela.dtors) } > sdram
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.rela.init : { *(.rela.init) } > sdram
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.rela.fini : { *(.rela.fini) } > sdram
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.rela.bss : { *(.rela.bss) } > sdram
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.rela.plt : { *(.rela.plt) } > sdram
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||||
.rela.sdata : { *(.rela.sdata) } > sdram
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.rela.sbss : { *(.rela.sbss) } > sdram
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.rela.sdata2 : { *(.rela.sdata2) } > sdram
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.rela.sbss2 : { *(.rela.sbss2) } > sdram
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.rela.dyn : { *(.rela.dyn) } > sdram
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||||
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.init : { KEEP(*(.init)) } > sdram
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||||
|
||||
.text :
|
||||
{
|
||||
*(.text*)
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||||
|
||||
/*
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* Special FreeBSD sysctl sections.
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||||
*/
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. = ALIGN (16);
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__start_set_sysctl_set = .;
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*(set_sysctl_*);
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__stop_set_sysctl_set = ABSOLUTE(.);
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*(set_domain_*);
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*(set_pseudo_*);
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|
||||
/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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*(.gnu.linkonce.t*)
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} > sdram
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.fini : { _fini = .; KEEP(*(.fini)) } > sdram
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|
||||
.rodata : { *(.rodata*) KEEP (*(SORT(.rtemsroset.*))) *(.gnu.linkonce.r*) } > sdram
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.rodata1 : { *(.rodata1) } > sdram
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||||
.tdata : {
|
||||
_TLS_Data_begin = .;
|
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*(.tdata .tdata.* .gnu.linkonce.td.*)
|
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_TLS_Data_end = .;
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} > sdram
|
||||
.tbss : {
|
||||
_TLS_BSS_begin = .;
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*(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
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_TLS_BSS_end = .;
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} > sdram
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_TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
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_TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
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_TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
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_TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
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_TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
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_TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));
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|
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/* Adjust the address for the data segment. We want to adjust up to
|
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the same address within the page on the next page up. */
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. = ALIGN(0x10000) + (. & (0x10000 - 1));
|
||||
/* Ensure the __preinit_array_start label is properly aligned. We
|
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could instead move the label definition inside the section, but
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the linker would then create the section even if it turns out to
|
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be empty, which isn't pretty. */
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. = ALIGN(32 / 8);
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PROVIDE (__preinit_array_start = .);
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.preinit_array : { *(.preinit_array) } >sdram
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PROVIDE (__preinit_array_end = .);
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PROVIDE (__init_array_start = .);
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.init_array : { *(.init_array) } >sdram
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PROVIDE (__init_array_end = .);
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PROVIDE (__fini_array_start = .);
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.fini_array : { *(.fini_array) } >sdram
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PROVIDE (__fini_array_end = .);
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|
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/* _SDA2_BASE_ = __SDATA2_START__ + 0x8000; */
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.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 = .;
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||||
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). */
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||||
. = 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*)
|
||||
KEEP (*(SORT(.rtemsrwset.*)))
|
||||
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_ = .);
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||||
.fixup : { *(.fixup) } > sdram
|
||||
PROVIDE (_FIXUP_END_ = .);
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||||
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__ + 0x8000; */
|
||||
.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 . */
|
||||
}
|
||||
9
bsps/lm32/milkymist/start/bsp_specs
Normal file
9
bsps/lm32/milkymist/start/bsp_specs
Normal file
@@ -0,0 +1,9 @@
|
||||
%rename endfile old_endfile
|
||||
%rename startfile old_startfile
|
||||
|
||||
*startfile:
|
||||
%{!qrtems: %(old_startfile)} \
|
||||
%{!nostdlib: %{qrtems: crti.o%s crtbegin.o%s}}
|
||||
|
||||
*endfile:
|
||||
%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s crtn.o%s}
|
||||
61
bsps/lm32/milkymist/start/bspclean.c
Normal file
61
bsps/lm32/milkymist/start/bspclean.c
Normal file
@@ -0,0 +1,61 @@
|
||||
/*
|
||||
* Milkymist shutdown routine
|
||||
*/
|
||||
|
||||
/*
|
||||
* COPYRIGHT (c) 2010 Sebastien Bourdeauducq
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rtems.org/license/LICENSE.
|
||||
*/
|
||||
|
||||
#include <bsp.h>
|
||||
#include <bsp/bootcard.h>
|
||||
#include "../include/system_conf.h"
|
||||
|
||||
static void reboot(void)
|
||||
{
|
||||
/* Writing to CSR_SYSTEM_ID causes a system reset */
|
||||
MM_WRITE(MM_SYSTEM_ID, 1);
|
||||
}
|
||||
|
||||
static void icap_write(int val, unsigned int w)
|
||||
{
|
||||
while (!(MM_READ(MM_ICAP) & ICAP_READY));
|
||||
if (!val)
|
||||
w |= ICAP_CE|ICAP_WRITE;
|
||||
MM_WRITE(MM_ICAP, w);
|
||||
}
|
||||
|
||||
static void reconf(void)
|
||||
{
|
||||
icap_write(0, 0xffff); /* dummy word */
|
||||
icap_write(0, 0xffff); /* dummy word */
|
||||
icap_write(0, 0xffff); /* dummy word */
|
||||
icap_write(0, 0xffff); /* dummy word */
|
||||
icap_write(1, 0xaa99); /* sync word part 1 */
|
||||
icap_write(1, 0x5566); /* sync word part 2 */
|
||||
icap_write(1, 0x30a1); /* write to command register */
|
||||
icap_write(1, 0x0000); /* null command */
|
||||
icap_write(1, 0x30a1); /* write to command register */
|
||||
icap_write(1, 0x000e); /* reboot command */
|
||||
icap_write(1, 0x2000); /* NOP */
|
||||
icap_write(1, 0x2000); /* NOP */
|
||||
icap_write(1, 0x2000); /* NOP */
|
||||
icap_write(1, 0x2000); /* NOP */
|
||||
icap_write(0, 0x1111); /* NULL */
|
||||
icap_write(0, 0xffff); /* dummy word */
|
||||
}
|
||||
|
||||
void bsp_fatal_extension(
|
||||
rtems_fatal_source source,
|
||||
bool always_set_to_false,
|
||||
rtems_fatal_code error
|
||||
)
|
||||
{
|
||||
if (source == RTEMS_FATAL_SOURCE_EXIT && error)
|
||||
reconf();
|
||||
else
|
||||
reboot();
|
||||
}
|
||||
308
bsps/lm32/milkymist/start/linkcmds
Normal file
308
bsps/lm32/milkymist/start/linkcmds
Normal file
@@ -0,0 +1,308 @@
|
||||
OUTPUT_FORMAT("elf32-lm32", "elf32-lm32",
|
||||
"elf32-lm32")
|
||||
OUTPUT_ARCH(lm32)
|
||||
ENTRY(start)
|
||||
STARTUP(start.o)
|
||||
/* 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 : 128M;
|
||||
HeapSize = DEFINED(HeapSize) ? HeapSize : 92M;
|
||||
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x2000;
|
||||
|
||||
PROVIDE (__stack = 0);
|
||||
MEMORY {
|
||||
sdram : ORIGIN = 0x40000000 , LENGTH = 128M
|
||||
}
|
||||
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*) KEEP (*(SORT(.rtemsroset.*))) *(.gnu.linkonce.r*) } > sdram
|
||||
.rodata1 : { *(.rodata1) } > sdram
|
||||
.tdata : {
|
||||
_TLS_Data_begin = .;
|
||||
*(.tdata .tdata.* .gnu.linkonce.td.*)
|
||||
_TLS_Data_end = .;
|
||||
} > sdram
|
||||
.tbss : {
|
||||
_TLS_BSS_begin = .;
|
||||
*(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
|
||||
_TLS_BSS_end = .;
|
||||
} > sdram
|
||||
_TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
|
||||
_TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
|
||||
_TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
|
||||
_TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
|
||||
_TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
|
||||
_TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));
|
||||
|
||||
/* 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*)
|
||||
KEEP (*(SORT(.rtemsrwset.*)))
|
||||
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 . */
|
||||
}
|
||||
28
bsps/lm32/shared/start/bspreset.c
Normal file
28
bsps/lm32/shared/start/bspreset.c
Normal file
@@ -0,0 +1,28 @@
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* Default bsp_reset() for LM32 BSPs which can run on the GDB simulator
|
||||
*/
|
||||
|
||||
/*
|
||||
* COPYRIGHT (c) 1989-2015.
|
||||
* On-Line Applications Research Corporation (OAR).
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rtems.org/license/LICENSE.
|
||||
*/
|
||||
|
||||
#include <bsp.h>
|
||||
#include <bsp/bootcard.h>
|
||||
|
||||
void bsp_reset( void )
|
||||
{
|
||||
/*
|
||||
* If on the GDB simulator, trap to it and exit.
|
||||
*/
|
||||
#if LM32_ON_SIMULATOR
|
||||
__asm__ volatile ( "mvi r8, 1" ); /* 1 is SYS_exit */
|
||||
__asm__ volatile ( "scall" );
|
||||
#endif
|
||||
}
|
||||
35
bsps/lm32/shared/start/bspstart.c
Normal file
35
bsps/lm32/shared/start/bspstart.c
Normal file
@@ -0,0 +1,35 @@
|
||||
/*
|
||||
* This routine starts the application. It includes application,
|
||||
* board, and monitor specific initialization and configuration.
|
||||
* The generic CPU dependent initialization has been performed
|
||||
* before this routine is invoked.
|
||||
*
|
||||
* COPYRIGHT (c) 1989-1999.
|
||||
* On-Line Applications Research Corporation (OAR).
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rtems.org/license/LICENSE.
|
||||
*
|
||||
* Jukka Pietarinen <jukka.pietarinen@mrf.fi>, 2008,
|
||||
* Micro-Research Finland Oy
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
|
||||
#include <bsp.h>
|
||||
#include <bsp/bootcard.h>
|
||||
#include "../include/system_conf.h"
|
||||
#include "../console/uart.h"
|
||||
|
||||
/*
|
||||
* bsp_start
|
||||
*
|
||||
* This routine does the bulk of the system initialization.
|
||||
*/
|
||||
|
||||
void bsp_start(void)
|
||||
{
|
||||
/* Setup console baud rate */
|
||||
BSP_uart_init(UART_BAUD_RATE);
|
||||
}
|
||||
Reference in New Issue
Block a user