nuttx/boards/arm/xmc4/xmc4700-relax/scripts/flash.ld
cuiziwei 25eb09c3bb nuttx/boards:add KEEP to *(.init_array .init_array.*)
replace *(.init_array .init_array.*) with KEEP(*(.init_array .init_array.*)).

The KEEP statement within a linker script will instruct the linker to keep the specified section, even if no symbols inside it are referenced. This statement is used within the SECTIONS section of the linker script. This becomes relevant when garbage collection is performed at link time, enabled by passing the --gc-sections switch to the linker. The KEEP statement instructs the linker to use the specified section as a root node when creating a dependency graph, looking for unused sections. Essentially forcing the section to be marked as used.

Signed-off-by: cuiziwei <cuiziwei@xiaomi.com>
2023-08-05 05:02:25 -07:00

127 lines
3.4 KiB
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/****************************************************************************
* boards/arm/xmc4/xmc4700-relax/scripts/flash.ld
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
*
****************************************************************************/
/* The XMC4700 has 2048Kb of FLASH accessible via:
* 1) the cacheable address space at 0x0800:0000
* 2) the non-cacheable address space at 0x0c00:0000
*
* The on-chip SRAM is split up into three blocks:
* 1) 96Kb of program memory beginning at the address 0x1ffe:8000
* 2) 128Kb of data memory beginning at the address 0x2000:0000
* 3) 128Kb of communication memory beginning at the address 0x2002:0000
*/
MEMORY
{
flash (rx) : ORIGIN = 0x0c000000, LENGTH = 2048K
psram (rwx) : ORIGIN = 0x1ffe8000, LENGTH = 96K
sram (rwx) : ORIGIN = 0x20000000, LENGTH = 256K
dsram1 (rwx) : ORIGIN = 0x20000000, LENGTH = 128K
dsram2 (rwx) : ORIGIN = 0x20020000, LENGTH = 128K
}
OUTPUT_ARCH(arm)
ENTRY(_stext)
SECTIONS
{
.text :
{
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
.init_section :
{
_sinit = ABSOLUTE(.);
KEEP(*(.init_array .init_array.*))
_einit = ABSOLUTE(.);
} > flash
.ARM.extab :
{
*(.ARM.extab*)
} > flash
__exidx_start = ABSOLUTE(.);
.ARM.exidx :
{
*(.ARM.exidx*)
} > flash
__exidx_end = ABSOLUTE(.);
_eronly = ABSOLUTE(.);
.data :
{
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
. = ALIGN(4);
_edata = ABSOLUTE(.);
} > sram AT > flash
.bss :
{
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(4);
_ebss = ABSOLUTE(.);
} > sram
/* Global data not cleared after reset. */
.noinit :
{
_snoinit = ABSOLUTE(.);
*(.noinit*)
_enoinit = ABSOLUTE(.);
} > sram
/* 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) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}