sdk:bsp: add link script for flash

Signed-off-by: liangkangnan <liangkangnan@163.com>
pull/4/head
liangkangnan 2021-11-25 09:02:32 +08:00
parent 3120110be3
commit bed8ed965e
3 changed files with 149 additions and 1 deletions

View File

@ -31,7 +31,7 @@ C_SRCS += $(BSP_DIR)/lib/pinmux.c
C_SRCS += $(BSP_DIR)/lib/flash_n25q.c C_SRCS += $(BSP_DIR)/lib/flash_n25q.c
C_SRCS += $(BSP_DIR)/lib/flash_ctrl.c C_SRCS += $(BSP_DIR)/lib/flash_ctrl.c
LINKER_SCRIPT := $(BSP_DIR)/link.lds LINKER_SCRIPT := $(BSP_DIR)/link_rom.lds
INCLUDES += -I$(BSP_DIR) INCLUDES += -I$(BSP_DIR)

148
sdk/bsp/link_flash.lds Normal file
View File

@ -0,0 +1,148 @@
OUTPUT_ARCH( "riscv" )
ENTRY(_start)
MEMORY
{
flash (wxa!ri) : ORIGIN = 0x01000000, LENGTH = 256K
ram (wxa!ri) : ORIGIN = 0x20000000, LENGTH = 16K
}
SECTIONS
{
__stack_size = DEFINED(__stack_size) ? __stack_size : 8K;
.init :
{
KEEP (*(SORT_NONE(.init)))
} >flash AT>flash
.text :
{
*(.text.unlikely .text.unlikely.*)
*(.text.startup .text.startup.*)
*(.text .text.*)
*(.gnu.linkonce.t.*)
} >flash AT>flash
. = ALIGN(4);
PROVIDE (__etext = .);
PROVIDE (_etext = .);
PROVIDE (etext = .);
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >flash AT>flash
.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 = .);
} >flash AT>flash
.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 = .);
} >flash AT>flash
.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))
} >flash AT>flash
.dtors :
{
KEEP (*crtbegin.o(.dtors))
KEEP (*crtbegin?.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} >flash AT>flash
.lalign :
{
. = ALIGN(4);
PROVIDE( _data_lma = . );
} >flash AT>flash
.dalign :
{
. = ALIGN(4);
PROVIDE( _data = . );
} >ram AT>flash
.data :
{
*(.rdata)
*(.rodata .rodata.*)
*(.gnu.linkonce.r.*)
*(.data .data.*)
*(.gnu.linkonce.d.*)
. = ALIGN(8);
PROVIDE( __global_pointer$ = . + 0x800 );
*(.sdata .sdata.*)
*(.gnu.linkonce.s.*)
. = ALIGN(8);
*(.srodata.cst16)
*(.srodata.cst8)
*(.srodata.cst4)
*(.srodata.cst2)
*(.srodata .srodata.*)
} >ram AT>flash
. = 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
. = ALIGN(8);
PROVIDE( _end = . );
PROVIDE( end = . );
.stack ORIGIN(ram) + LENGTH(ram) - __stack_size :
{
PROVIDE( _heap_end = . );
. = __stack_size;
PROVIDE( _sp = . );
__freertos_irq_stack_top = .;
} >ram AT>ram
}