25eb09c3bb
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>
137 lines
4.0 KiB
Plaintext
137 lines
4.0 KiB
Plaintext
/****************************************************************************
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* boards/arm/stm32/b-g474e-dpow1/scripts/ld.script
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/* The STM32G474RE has 512 KiB of FLASH beginning at address 0x0800:0000.
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*
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* When booting from FLASH, FLASH memory is aliased to address 0x0000:0000
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* where the code expects to begin execution by jumping to the entry point in
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* the 0x0800:0000 address range.
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*
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* The STM32G474RE has a total of 128 KiB of SRAM in three separate areas:
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*
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* 1) 80 KiB SRAM1 mapped at 0x2000:0000 thru 0x2001:3fff.
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* 2) 16 KiB SRAM2 mapped at 0x2001:4000 thru 0x2001:7fff.
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*
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* CCM SRAM (Routine Booster):
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*
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* 3) 32 KiB CCM SRAM mapped at 0x1000:0000 thru 0x1000:7fff
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* but also aliased at at 0x2001:8000 thru 0x2001:ffff to be contiguous
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* with the SRAM1 and SRAM2.
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*
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* Because SRAM1 and SRAM2 are contiguous, they are treated as one region
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* by this logic.
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*
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* CCM SRAM is also contiguous to SRAM1 and SRAM2, however it is excluded
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* from this linker script, to keep it reserved for special uses in code.
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* REVISIT: Is this the correct way to handle CCM SRAM?
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*/
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MEMORY
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{
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flash (rx) : ORIGIN = 0x08000000, LENGTH = 512K
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sram (rwx) : ORIGIN = 0x20000000, LENGTH = 96K
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}
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OUTPUT_ARCH(arm)
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EXTERN(_vectors)
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ENTRY(_stext)
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SECTIONS
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{
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.text : {
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_stext = ABSOLUTE(.);
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*(.vectors)
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*(.text .text.*)
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*(.fixup)
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*(.gnu.warning)
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*(.rodata .rodata.*)
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*(.gnu.linkonce.t.*)
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*(.glue_7)
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*(.glue_7t)
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*(.got)
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*(.gcc_except_table)
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*(.gnu.linkonce.r.*)
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_etext = ABSOLUTE(.);
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} > flash
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.init_section : ALIGN(4) {
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_sinit = ABSOLUTE(.);
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KEEP(*(.init_array .init_array.*))
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_einit = ABSOLUTE(.);
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} > flash
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.ARM.extab : ALIGN(4) {
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*(.ARM.extab*)
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} > flash
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.ARM.exidx : ALIGN(4) {
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__exidx_start = ABSOLUTE(.);
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*(.ARM.exidx*)
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__exidx_end = ABSOLUTE(.);
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} > flash
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.tdata : {
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_stdata = ABSOLUTE(.);
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*(.tdata .tdata.* .gnu.linkonce.td.*);
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_etdata = ABSOLUTE(.);
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} > flash
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.tbss : {
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_stbss = ABSOLUTE(.);
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*(.tbss .tbss.* .gnu.linkonce.tb.* .tcommon);
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_etbss = ABSOLUTE(.);
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} > flash
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_eronly = ABSOLUTE(.);
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.data : ALIGN(4) {
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_sdata = ABSOLUTE(.);
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*(.data .data.*)
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*(.gnu.linkonce.d.*)
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CONSTRUCTORS
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. = ALIGN(4);
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_edata = ABSOLUTE(.);
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} > sram AT > flash
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.bss : ALIGN(4) {
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_sbss = ABSOLUTE(.);
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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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_ebss = ABSOLUTE(.);
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} > sram
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_info 0 : { *(.debug_info) }
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.debug_line 0 : { *(.debug_line) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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.debug_aranges 0 : { *(.debug_aranges) }
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}
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