diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2010-12-03 10:52:07 +0000 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2010-12-03 10:52:07 +0000 |
commit | 8d992be9c13b1dd4f9aafd5e2ea81ed87ecd7ce9 (patch) | |
tree | 71142b1fe56c2ff37a16962ef89809741bf568e5 /c/src/lib/libbsp/arm/edb7312 | |
parent | 2010-12-03 Sebastian Huber <sebastian.huber@embedded-brains.de> (diff) | |
download | rtems-8d992be9c13b1dd4f9aafd5e2ea81ed87ecd7ce9.tar.bz2 |
2010-12-03 Sebastian Huber <sebastian.huber@embedded-brains.de>
* bsp_specs, start/start.S, startup/linkcmds: Use linker command base
file.
Diffstat (limited to 'c/src/lib/libbsp/arm/edb7312')
-rw-r--r-- | c/src/lib/libbsp/arm/edb7312/ChangeLog | 5 | ||||
-rw-r--r-- | c/src/lib/libbsp/arm/edb7312/bsp_specs | 2 | ||||
-rw-r--r-- | c/src/lib/libbsp/arm/edb7312/start/start.S | 86 | ||||
-rw-r--r-- | c/src/lib/libbsp/arm/edb7312/startup/linkcmds | 261 |
4 files changed, 60 insertions, 294 deletions
diff --git a/c/src/lib/libbsp/arm/edb7312/ChangeLog b/c/src/lib/libbsp/arm/edb7312/ChangeLog index 6bbd54379a..6978baefb0 100644 --- a/c/src/lib/libbsp/arm/edb7312/ChangeLog +++ b/c/src/lib/libbsp/arm/edb7312/ChangeLog @@ -1,3 +1,8 @@ +2010-12-03 Sebastian Huber <sebastian.huber@embedded-brains.de> + + * bsp_specs, start/start.S, startup/linkcmds: Use linker command base + file. + 2010-04-30 Sebastian Huber <sebastian.huber@embedded-brains.de> * irq/bsp_irq_init.c: Removed file. diff --git a/c/src/lib/libbsp/arm/edb7312/bsp_specs b/c/src/lib/libbsp/arm/edb7312/bsp_specs index f079604d28..082653ad22 100644 --- a/c/src/lib/libbsp/arm/edb7312/bsp_specs +++ b/c/src/lib/libbsp/arm/edb7312/bsp_specs @@ -7,7 +7,7 @@ %{!nostdlib: %{qrtems: start.o%s crti.o%s crtbegin.o%s -e _start}} *link: -%{!qrtems: %(old_link)} %{qrtems: -dp -Bstatic -N} +%{!qrtems: %(old_link)} %{qrtems: -dc -dp -N} *endfile: %{!qrtems: *(old_endfiles)} %{qrtems: crtend.o%s crtn.o%s } diff --git a/c/src/lib/libbsp/arm/edb7312/start/start.S b/c/src/lib/libbsp/arm/edb7312/start/start.S index 11ffd80a9f..51c5b81a5c 100644 --- a/c/src/lib/libbsp/arm/edb7312/start/start.S +++ b/c/src/lib/libbsp/arm/edb7312/start/start.S @@ -1,6 +1,8 @@ /* * Cirrus EP7312 Startup code * + * Copyright (c) 2010 embedded brains GmbH. + * * Copyright (c) 2002 by Jay Monkman <jtm@smoothsmoothie.com> * * Copyright (c) 2002 by Charlie Steader <charlies@poliac.com> @@ -14,6 +16,8 @@ * $Id$ */ +#include <bsp/linker-symbols.h> + /* Some standard definitions...*/ .equ Mode_USR, 0x10 @@ -28,50 +32,8 @@ .equ I_Bit, 0x80 .equ F_Bit, 0x40 - .text - .globl _start - -_start: - /* store the sp */ - mov r12, sp -/* - * Here is the code to initialize the low-level BSP environment - * (Chip Select, PLL, ....?) - */ - -/* zero the bss */ - LDR r1, =_bss_end_ /* get end of ZI region */ - LDR r0, =_bss_start_ /* load base address of ZI region */ - -zi_init: - MOV r2, #0 - CMP r0, r1 /* loop whilst r0 < r1 */ - STRLOT r2, [r0], #4 - BLO zi_init - -/* Load basic ARM7 interrupt table */ -VectorInit: - MOV R0, #0 - ADR R1, Vector_Init_Block - LDMIA R1!, {R2, r3} /* Copy the Vectors (8 words) */ - STMIA R0!, {r2, r3} - LDMIA R1!, {R2, r3} /* Copy the Vectors (8 words) */ - STMIA R0!, {r2, r3} - LDMIA R1!, {R2, r3} /* Copy the Vectors (8 words) */ - STMIA R0!, {r2, r3} - LDMIA R1!, {R2, r3} /* Copy the Vectors (8 words) */ - STMIA R0!, {r2, r3} - - LDMIA R1!, {R2, r3} /* Copy the .long'ed addresses (8 words) */ - STMIA R0!, {r2, r3} - LDMIA R1!, {R2, r3} /* Copy the .long'ed addresses (8 words) */ - STMIA R0!, {r2, r3} - LDMIA R1!, {R2, r3} /* Copy the .long'ed addresses (8 words) */ - STMIA R0!, {r2, r3} - LDMIA R1!, {R2, r3} /* Copy the .long'ed addresses (8 words) */ - STMIA R0!, {r2, r3} - - B init2 +.section ".bsp_start_text", "ax" +.arm /******************************************************* standard exception vectors table @@ -118,38 +80,56 @@ IRQ_Handler: FIQ_Handler: B FIQ_Handler -init2 : + .globl _start +_start: + /* store the sp */ + mov r12, sp +/* + * Here is the code to initialize the low-level BSP environment + * (Chip Select, PLL, ....?) + */ + +/* zero the bss */ + LDR r1, =bsp_section_bss_end /* get end of ZI region */ + LDR r0, =bsp_section_bss_begin /* load base address of ZI region */ + +zi_init: + MOV r2, #0 + CMP r0, r1 /* loop whilst r0 < r1 */ + STRLOT r2, [r0], #4 + BLO zi_init + /* --- Initialise stack pointer registers */ /* Enter IRQ mode and set up the IRQ stack pointer */ MOV r0, #Mode_IRQ | I_Bit | F_Bit /* No interrupts */ 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 sub sp, sp, #0x64 /* Enter FIQ mode and set up the FIQ stack pointer */ MOV r0, #Mode_FIQ | I_Bit | F_Bit /* No interrupts */ 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 sub sp, sp, #0x64 /* Enter ABT mode and set up the ABT stack pointer */ MOV r0, #Mode_ABT | I_Bit | F_Bit /* No interrupts */ MSR cpsr, r0 - 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 sub sp, sp, #0x64 /* Set up the SVC stack pointer last and stay in SVC mode */ MOV r0, #Mode_SVC | I_Bit | F_Bit /* No interrupts */ 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 diff --git a/c/src/lib/libbsp/arm/edb7312/startup/linkcmds b/c/src/lib/libbsp/arm/edb7312/startup/linkcmds index 0f7ec01bbe..7b5a0b8553 100644 --- a/c/src/lib/libbsp/arm/edb7312/startup/linkcmds +++ b/c/src/lib/libbsp/arm/edb7312/startup/linkcmds @@ -1,243 +1,24 @@ -/* - * Cirrus EP7312 linker script - * - * Copyright (c) 2002 by Jay Monkman <jtm@smoothsmoothie.com> - * - * 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 = 0x00000000, LENGTH = 16M - regs : ORIGIN = 0x80000000, LENGTH = 1M -} - -/* - * Declare some sizes. - */ - -_sdram_base = DEFINED(_sdram_base) ? _sdram_base : 0x00000000; -_sdram_size = DEFINED(_sdram_size) ? _sdram_size : 16M; - -RamBase = _sdram_base; -RamSize = _sdram_size; -HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0; - -_irq_stack_size = DEFINED(_irq_stack_size) ? _irq_stack_size : 0x1000; -_fiq_stack_size = DEFINED(_fiq_stack_size) ? _fiq_stack_size : 0x400; -_abt_stack_size = DEFINED(_abt_stack_size) ? _abt_stack_size : 0; -_svc_stack_size = DEFINED(_svc_stack_size) ? _svc_stack_size : 0x1000; - - - -/* 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; - /* FIXME: */ - fiq_vect_table = .; /* this and irq_vector_table should be swapped */ - . += (32 * 4); - - irq_vector_table = .; - . += (32 * 4); - - } > sdram - - .init : - { - KEEP (*(.init)) - } > sdram /*=0*/ - - .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 - - .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(64); - _clear_end = .; - - . = ALIGN (256); - _abt_stack = .; - . += _abt_stack_size; - - . = ALIGN (256); - _irq_stack = .; - . += _irq_stack_size; - - . = ALIGN (256); - _fiq_stack = .; - . += _fiq_stack_size; - - . = ALIGN (256); - _svc_stack = .; - . += _svc_stack_size; - - _bss_end_ = .; - _end = .; - __end = .; - - - . = ALIGN (1024); - _bss_free_start = .; - WorkAreaBase = .; - - } > sdram - -/* - .regs : - { - ep7312_regs_base = .; - ep7312_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) } - /* 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) } - /*.stack 0x80000 : { _stack = .; *(.stack) }*/ - /* These must appear regardless of . */ + SDRAM : ORIGIN = 0x00000000, LENGTH = 16M + NIRVANA : ORIGIN = 0, LENGTH = 0 } +REGION_ALIAS ("REGION_START", SDRAM); +REGION_ALIAS ("REGION_VECTOR", SDRAM); +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); + +bsp_vector_table_in_start_section = 1; + +INCLUDE linkcmds.armv4 |