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Adapt memory map for tcrest bsp

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This commit is contained in:
afpr
2014-07-02 09:58:26 +01:00
parent 19fca6ca36
commit c6abeac352
3 changed files with 27 additions and 75 deletions
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2
c/src/lib/libbsp/patmos/tcrest/include/bsp.h
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@@ -30,7 +30,7 @@ extern "C" {
*/
#define RAM_START 0x400
#define RAM_SIZE 768K
#define RAM_SIZE 1M
#define RAM_END RAM_START + RAM_SIZE
#define PROM_START 0x00000000

2
c/src/lib/libbsp/patmos/tcrest/make/custom/tcrest.cfg
View File

@@ -23,4 +23,4 @@ CFLAGS_DEBUG_V = -O0 -Xllc -optimize-regalloc
LINK_LIBS += $(PROJECT_RELEASE)/lib/start.o $(PROJECT_RELEASE)/lib/libsyms.ll -l=c -l=rtemscpu -l=rtemsbsp -nostartfiles \
-Xgold -Map -Xgold map.map -Xgold --script=$(PROJECT_RELEASE)/lib/linkcmds -mpatmos-disable-vliw \
-mpatmos-method-cache-size=0x800 -mpatmos-preferred-subfunction-size=0 -mpatmos-stack-base=0x0f0000 \
-mpatmos-shadow-stack-base=0x100000 -Xgold -n
-mpatmos-shadow-stack-base=0x100000 -Xgold -n -Xgold -entry=hard_reset

98
c/src/lib/libbsp/patmos/tcrest/startup/linkcmds
View File

@@ -1,93 +1,45 @@
/* linkcmds
*
* $Id$
*/
/* Default values, can be overridden */
_PROM_SIZE = 0K;
_PROM_START = 0x00000000;
_RAM_SIZE = 768K;
_RAM_START = 0x400;
# A simple linker script to put code and data into the external memory
/* these are the maximum values */
RamBase = 0x400;
RamSize = 768K;
MEMORY
{
rom : ORIGIN = 0x00000000, LENGTH = 0K
ram : ORIGIN = 0x400, LENGTH = 768K
}
RamSize = 1M;
OUTPUT_ARCH(patmos)
ENTRY(hard_reset)
__DYNAMIC = 0;
/*
* The memory map looks like this:
* +--------------------+ <- low memory
* | .data RAM | initialized data goes here
* | _data_start |
* | _edata |
* +--------------------+
* | .bss RAM |
* | __bss_start | start of bss, cleared by crt0
* | _end | start of heap, used by sbrk()
* +--------------------+
* | .text RAM |
* | _text_start |
* +--------------------+ <- high memory
*/
_RAM_END = _RAM_START + _RAM_SIZE;
_PROM_END = _PROM_START + _PROM_SIZE;
/*
* Alternate names without leading _.
*/
PROM_START = _PROM_START;
PROM_SIZE = _PROM_SIZE;
PROM_END = _PROM_END;
RAM_START = _RAM_START;
RAM_SIZE = _RAM_SIZE;
RAM_END = _RAM_END;
/*
* stick everything in ram (of course)
*/
SECTIONS
{
.data 0x400 :
{
. = SEGMENT_START(".rodata", 0x400);
.init_array : { *(SORT(.init_array.*) .init_array) }
.fini_array : { *(SORT(.fini_array.*) .fini_array) }
.data : {
data_start = . ;
_data_start = . ;
*(.data)
_edata = ALIGN( 0x10 ) ;
}
.bss :
{
*(.data)
_edata = ALIGN( 0x10 ) ;
}
.bss : {
bss_start = . ;
_bss_start = . ;
*(.bss)
*(COMMON)
WorkAreaBase = . ;
end = . ;
_end = . ;
__end = . ;
}
.text 0x00020000 :
{
bss_end = . ;
_bss_end = . ;
__bss_end = . ;
}
. = SEGMENT_START(".text", 0x80000);
.text : {
text_start = . ;
_text_start = . ;
*(.text)
. = ALIGN (0x10);
}
}
. = ALIGN(8);
_end = .; PROVIDE (end = .);
}