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2010-12-03 Sebastian Huber <sebastian.huber@embedded-brains.de>

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* startup/linkcmds, start/start.S: Use linker command base file.
This commit is contained in:
Sebastian Huber
2010-12-03 10:50:28 +00:00
parent f2d1c4db2f
commit f990c1ae61
3 changed files with 34 additions and 252 deletions
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c/src/lib/libbsp/arm/rtl22xx/ChangeLog
+4
View File
@@ -1,3 +1,7 @@
2010-12-03 Sebastian Huber <sebastian.huber@embedded-brains.de>
* startup/linkcmds, start/start.S: Use linker command base file.
2010-05-20 Sebastian Huber <sebastian.huber@embedded-brains.de>
* make/custom/rtl22xx_t.cfg: Workaround for GCC bug 38644.
c/src/lib/libbsp/arm/rtl22xx/start/start.S
+11 -11
View File
@@ -12,7 +12,7 @@
* $Id$
*/
/* Some standard definitions...*/
#include <bsp/linker-symbols.h>
/* Some standard definitions...*/
.equ PSR_MODE_USR, 0x10
@@ -44,16 +44,16 @@ _start:
mov r0, #(PSR_MODE_IRQ | PSR_I | PSR_F) /* No interrupts */
bic r0, r0, #PSR_T
msr cpsr, r0
ldr r1, =_irq_stack_size
ldr sp, =_irq_stack
ldr r1, =bsp_stack_irq_size
ldr sp, =bsp_stack_irq_begin
add sp, sp, r1
/* Enter FIQ mode and set up the FIQ stack pointer */
mov r0, #(PSR_MODE_FIQ | PSR_I | PSR_F) /* No interrupts */
bic r0, r0, #PSR_T
msr cpsr, r0
ldr r1, =_fiq_stack_size
ldr sp, =_fiq_stack
ldr r1, =bsp_stack_fiq_size
ldr sp, =bsp_stack_fiq_begin
add sp, sp, r1
/* Enter ABT mode and set up the ABT stack pointer */
@@ -61,16 +61,16 @@ _start:
bic r0, r0, #PSR_T
msr cpsr, r0
bic r0, r0, #PSR_T
ldr r1, =_abt_stack_size
ldr sp, =_abt_stack
ldr r1, =bsp_stack_abt_size
ldr sp, =bsp_stack_abt_begin
add sp, sp, r1
/* Set up the SVC stack pointer last and stay in SVC mode */
mov r0, #(PSR_MODE_SVC | PSR_I | PSR_F) /* No interrupts */
bic r0, r0, #PSR_T
msr cpsr, r0
ldr r1, =_svc_stack_size
ldr sp, =_svc_stack
ldr r1, =bsp_stack_svc_size
ldr sp, =bsp_stack_svc_begin
add sp, sp, r1
sub sp, sp, #0x64
@@ -89,8 +89,8 @@ _start:
/* zero the bss */
ldr r1, =_bss_end_
ldr r0, =_bss_start_
ldr r1, =bsp_section_bss_end
ldr r0, =bsp_section_bss_begin
_bss_init:
mov r2, #0
c/src/lib/libbsp/arm/rtl22xx/startup/linkcmds
+19 -241
View File
@@ -1,245 +1,23 @@
/*
* Philips lpc ARM linker script
* By Ray,Xu
* Rayx.cn@gmail.com
*
* LPC22xx ARM do not have a MMU, the formatter got 512kb SRAM
* I set the code entry to the beging of SRAM for debugging perpurse
*
* 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.
*
*
* $Id$
*/
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm",
"elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
MEMORY {
sdram : ORIGIN = 0x81000000, LENGTH = 512K
sram : ORIGIN = 0x40000000, LENGTH = 16K
regs : ORIGIN = 0xe0000000, LENGTH = 2M
SDRAM : ORIGIN = 0x81000000, LENGTH = 512k
SRAM : ORIGIN = 0x40000000, LENGTH = 16k
NIRVANA : ORIGIN = 0, LENGTH = 0
}
/*
* Declare some sizes.
*/
_sdram_base = DEFINED(_sdram_base) ? _sdram_base : 0x81000000;
_sdram_size = DEFINED(_sdram_size) ? _sdram_size : 512K;
RamBase = _sdram_base;
RamSize = _sdram_size;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0;
_irq_stack_size = DEFINED(_irq_stack_size) ? _irq_stack_size : 0x100;
_fiq_stack_size = DEFINED(_fiq_stack_size) ? _fiq_stack_size : 0x50;
_abt_stack_size = DEFINED(_abt_stack_size) ? _abt_stack_size : 0x50;
_svc_stack_size = DEFINED(_svc_stack_size) ? _svc_stack_size : 0x100;
/* Do we need any of these for elf?
__DYNAMIC = 0; */
SECTIONS
{
.base :
{
_sram_base = .;
arm_exception_table = .;
arm_reset_vect = .; /* 0x00 */
. += 4;
arm_undef_vect = .; /* 0x04 */
. += 4;
arm_swi_vect = .; /* 0x08 */
. += 4;
arm_iabrt_vect = .; /* 0x0c */
. += 4;
arm_dabrt_vect = .; /* 0x10 */
. += 4;
/* no vector here */
. += 4;
arm_irq_vect = .; /* 0x18 */
. += 4;
arm_fiq_vect = .; /* 0x1c */
. += 4;
rtems_vector_table = .;
. += (8 * 4); /* 8 ARM interrupts */
/*bsp_vector_table = .;*/
/*. += (64 * 4); 64 LPC22xx interrupts */
. = ALIGN (0x10);
} > sram
.text :
{
_text_start = .;
CREATE_OBJECT_SYMBOLS
*(.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*)
*(.glue_7)
*(.glue_7t)
/* I think these come from the ld docs: */
___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__ = .;
_etext = .;
PROVIDE (etext = .);
} > sdram
.init :
{
KEEP (*(.init))
} > sdram /*=0*/
.fini :
{
KEEP (*(.fini))
} > sdram /*=0*/
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
*(.jcr)
SORT(CONSTRUCTORS)
_edata = .;
} > sdram
.eh_frame : { *(.eh_frame) } > sdram
.data1 : { *(.data1) } > sdram
.eh_frame : { *(.eh_frame) } > sdram
.gcc_except_table : { *(.gcc_except_table*) } > sdram
.rodata :
{
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r*)
} > sdram
.bss :
{
_bss_start_ = .;
_clear_start = .;
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(0x10);
_clear_end = .;
. = ALIGN (0x10);
_abt_stack = .;
. += _abt_stack_size;
. = ALIGN (0x10);
_irq_stack = .;
. += _irq_stack_size;
. = ALIGN (0x10);
_fiq_stack = .;
. += _fiq_stack_size;
. = ALIGN (0x10);
_svc_stack = .;
. += _svc_stack_size;
_bss_end_ = .;
_end = .;
__end = .;
. = ALIGN (0x10);
_bss_free_start = .;
WorkAreaBase = .;
} > sdram
/*
.regs :
{
lpc22xx_regs_base = .;
lpc22xx_regs = .;
. += 8192;
} > regs
*/
/* Debugging stuff follows? */
/* 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) }
/*.stack 0x80000 : { _stack = .; *(.stack) }*/
/* These must appear regardless of . */
}
REGION_ALIAS ("REGION_START", SDRAM);
REGION_ALIAS ("REGION_VECTOR", SRAM);
REGION_ALIAS ("REGION_TEXT", SDRAM);
REGION_ALIAS ("REGION_TEXT_LOAD", SDRAM);
REGION_ALIAS ("REGION_RODATA", SDRAM);
REGION_ALIAS ("REGION_RODATA_LOAD", SDRAM);
REGION_ALIAS ("REGION_DATA", SDRAM);
REGION_ALIAS ("REGION_DATA_LOAD", SDRAM);
REGION_ALIAS ("REGION_FAST_TEXT", SDRAM);
REGION_ALIAS ("REGION_FAST_TEXT_LOAD", SDRAM);
REGION_ALIAS ("REGION_FAST_DATA", SDRAM);
REGION_ALIAS ("REGION_FAST_DATA_LOAD", SDRAM);
REGION_ALIAS ("REGION_BSS", SDRAM);
REGION_ALIAS ("REGION_WORK", SDRAM);
REGION_ALIAS ("REGION_STACK", SDRAM);
INCLUDE linkcmds.armv4