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https://github.com/RIOT-OS/RIOT.git
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0ddca68de9
Other archs use `_sheap` and `_eheap` to mark the start and end of the heap. fe310 uses `_heap_start` and `_heap_end`, so platform independent code that wants to make use of this will needlessly fail. For compatibility with common code, name them the same on fe310.
178 lines
4.0 KiB
Plaintext
178 lines
4.0 KiB
Plaintext
/*
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* Copyright (C) 2017, 2019 Ken Rabold
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @addtogroup cpu_fe310
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* @{
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*
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* @file
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* @brief Common linker directives for the SiFive FE310
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*
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* @author Ken Rabold
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*
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* @}
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*/
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OUTPUT_ARCH( "riscv" )
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ENTRY( _start )
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PHDRS
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{
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flash PT_LOAD;
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ram_init PT_LOAD;
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ram PT_NULL;
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}
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SECTIONS
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{
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__stack_size = DEFINED(__stack_size) ? __stack_size : 256;
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.init :
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{
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KEEP (*(SORT_NONE(.init)))
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} >flash AT>flash :flash
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.text :
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{
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*(.text.unlikely .text.unlikely.*)
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*(.text.startup .text.startup.*)
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*(.text .text.*)
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*(.gnu.linkonce.t.*)
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} >flash AT>flash :flash
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.fini :
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{
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KEEP (*(SORT_NONE(.fini)))
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} >flash AT>flash :flash
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PROVIDE (__etext = .);
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PROVIDE (_etext = .);
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PROVIDE (etext = .);
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.rodata :
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{
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*(.rdata)
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*(.rodata .rodata.*)
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*(.gnu.linkonce.r.*)
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} >flash AT>flash :flash
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. = ALIGN(4);
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.preinit_array :
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{
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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} >flash AT>flash :flash
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.init_array :
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{
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
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KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
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PROVIDE_HIDDEN (__init_array_end = .);
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} >flash AT>flash :flash
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.fini_array :
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{
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
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KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
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PROVIDE_HIDDEN (__fini_array_end = .);
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} >flash AT>flash :flash
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.ctors :
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{
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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KEEP (*crtbegin?.o(.ctors))
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/* We don't want to include the .ctor section from
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the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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} >flash AT>flash :flash
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*crtbegin?.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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} >flash AT>flash :flash
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.lalign :
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{
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. = ALIGN(4);
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PROVIDE( _data_lma = . );
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} >flash AT>flash :flash
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.dalign :
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{
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. = ALIGN(4);
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PROVIDE( _data = . );
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} >ram AT>flash :ram_init
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.data :
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{
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*(.ramfunc .ramfunc.*)
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*(.data .data.*)
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*(.gnu.linkonce.d.*)
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. = ALIGN(8);
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PROVIDE( __global_pointer$ = . + 0x800 );
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*(.sdata .sdata.*)
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*(.gnu.linkonce.s.*)
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. = ALIGN(8);
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*(.srodata.cst16)
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*(.srodata.cst8)
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*(.srodata.cst4)
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*(.srodata.cst2)
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*(.srodata .srodata.*)
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} >ram AT>flash :ram_init
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. = ALIGN(4);
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PROVIDE( _edata = . );
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PROVIDE( edata = . );
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PROVIDE( _fbss = . );
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PROVIDE( __bss_start = . );
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.bss :
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{
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*(.sbss*)
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*(.gnu.linkonce.sb.*)
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*(.bss .bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN(4);
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} >ram AT>ram :ram
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. = ALIGN(8);
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PROVIDE( _end = . );
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PROVIDE( end = . );
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PROVIDE( _sheap = . );
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.stack ORIGIN(ram) + LENGTH(ram) - __stack_size :
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{
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PROVIDE( _eheap = . );
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. = __stack_size;
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PROVIDE( _sp = . );
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} >ram AT>ram :ram
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}
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