diff options
Diffstat (limited to 'bsp/env/freedom-e300-arty')
| l---------[-rw-r--r--] | bsp/env/freedom-e300-arty/entry.S | 82 | ||||
| l---------[-rw-r--r--] | bsp/env/freedom-e300-arty/link.lds | 164 |
2 files changed, 2 insertions, 244 deletions
diff --git a/bsp/env/freedom-e300-arty/entry.S b/bsp/env/freedom-e300-arty/entry.S index c8ec662..350d678 100644..120000 --- a/bsp/env/freedom-e300-arty/entry.S +++ b/bsp/env/freedom-e300-arty/entry.S @@ -1,81 +1 @@ -/*- - * Copyright (c) 2013-2015 Marko Zec, University of Zagreb - * - * 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. - * - * $Id$ - */ - -/* - * Copy data, clear BSS, set small data index register and jump into main(). - * - * Assumes that the loader has already properly: - * 1) set stack pointer - * 2) set return address - * 3) invalidated caches - */ - - .section .init - .globl _start - .type _start,@function - -_start: - la gp, _gp - la sp, _sp - - /* Load data sections */ - la s0, _data - la s1, _edata - la s2, _data_lma - j 2f -1: - lw t0, (s2) - sw t0, (s0) - addi s2, s2, 4 - addi s0, s0, 4 -2: - bltu s0, s1, 1b - - la s1, _end /* End of BSS section, word aligned */ - la s0, __bss_start /* Start of BSS section, word aligned */ - j bss_bzero_enter - - /* The loader doesn't bzero the BSS, so we must do it here. */ -bss_bzero_loop: - sw zero, (s0) - addi s0, s0, 4 -bss_bzero_enter: - bne s0, s1, bss_bzero_loop - - la s0, __init_array_start - la s1, __init_array_end - move s2, ra - j ctor_loop_enter - -ctor_loop: - lw a0, (s0) - addi s0, s0, 4 - jalr a0 -ctor_loop_enter: - bne s0, s1, ctor_loop - move ra, s2 - j _init +../freedom-e300-hifive1/entry.S
\ No newline at end of file diff --git a/bsp/env/freedom-e300-arty/link.lds b/bsp/env/freedom-e300-arty/link.lds index e25baf4..2c48449 100644..120000 --- a/bsp/env/freedom-e300-arty/link.lds +++ b/bsp/env/freedom-e300-arty/link.lds @@ -1,163 +1 @@ -OUTPUT_ARCH( "riscv" ) - -ENTRY( _start ) - -MEMORY -{ - flash (rxai!w) : ORIGIN = 0x20400000, LENGTH = 512M - ram (wxa!ri) : ORIGIN = 0x80000000, LENGTH = 16K -} - -PHDRS -{ - flash PT_LOAD; - ram_init PT_LOAD; - ram PT_NULL; -} - -SECTIONS -{ - __stack_size = DEFINED(__stack_size) ? __stack_size : 2K; - - .init : - { - KEEP (*(SORT_NONE(.init))) - } >flash AT>flash :flash - - .text : - { - *(.text .text.*) - *(.gnu.linkonce.t.*) - } >flash AT>flash :flash - - .fini : - { - KEEP (*(SORT_NONE(.fini))) - } >flash AT>flash :flash - - PROVIDE (__etext = .); - PROVIDE (_etext = .); - PROVIDE (etext = .); - - .rodata : - { - *(.rdata) - *(.rodata .rodata.*) - *(.gnu.linkonce.r.*) - } >flash AT>flash :flash - - .lalign : - { - . = ALIGN(4); - PROVIDE( _data_lma = . ); - } >flash AT>flash :flash - - .dalign : - { - . = ALIGN(4); - PROVIDE( _data = . ); - } >ram AT>flash :ram_init - - .preinit_array : - { - PROVIDE_HIDDEN (__preinit_array_start = .); - KEEP (*(.preinit_array)) - PROVIDE_HIDDEN (__preinit_array_end = .); - } >ram AT>flash :ram_init - - .init_array : - { - PROVIDE_HIDDEN (__init_array_start = .); - KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))) - KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors)) - PROVIDE_HIDDEN (__init_array_end = .); - } >ram AT>flash :ram_init - - .fini_array : - { - PROVIDE_HIDDEN (__fini_array_start = .); - KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*))) - KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors)) - PROVIDE_HIDDEN (__fini_array_end = .); - } >ram AT>flash :ram_init - - .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)) - KEEP (*crtbegin?.o(.ctors)) - /* We don't want to include the .ctor section 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 *crtend?.o ) .ctors)) - KEEP (*(SORT(.ctors.*))) - KEEP (*(.ctors)) - } >ram AT>flash :ram_init - - .dtors : - { - KEEP (*crtbegin.o(.dtors)) - KEEP (*crtbegin?.o(.dtors)) - KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) - KEEP (*(SORT(.dtors.*))) - KEEP (*(.dtors)) - } >ram AT>flash :ram_init - - .data : - { - *(.data .data.*) - *(.gnu.linkonce.d.*) - } >ram AT>flash :ram_init - - .srodata : - { - PROVIDE( _gp = . + 0x800 ); - *(.srodata.cst16) - *(.srodata.cst8) - *(.srodata.cst4) - *(.srodata.cst2) - *(.srodata .srodata.*) - } >ram AT>flash :ram_init - - .sdata : - { - *(.sdata .sdata.*) - *(.gnu.linkonce.s.*) - } >ram AT>flash :ram_init - - . = ALIGN(4); - PROVIDE( _edata = . ); - PROVIDE( edata = . ); - - PROVIDE( _fbss = . ); - PROVIDE( __bss_start = . ); - .bss : - { - *(.sbss*) - *(.gnu.linkonce.sb.*) - *(.bss .bss.*) - *(.gnu.linkonce.b.*) - *(COMMON) - . = ALIGN(4); - } >ram AT>ram :ram - - . = ALIGN(8); - PROVIDE( _end = . ); - PROVIDE( end = . ); - - .stack ORIGIN(ram) + LENGTH(ram) - __stack_size : - { - PROVIDE( _heap_end = . ); - . = __stack_size; - PROVIDE( _sp = . ); - } >ram AT>ram :ram -} +../freedom-e300-hifive1/link.lds
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