mirror of
https://github.com/zephyrproject-rtos/zephyr
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feae3249b2
Adds the necessary bits to initialize TLS in the stack area and sets up CPU registers during context switch. Register g7 is used to point to the thread data. Thread data is accessed with negative offsets from g7. Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
162 lines
3.1 KiB
Plaintext
162 lines
3.1 KiB
Plaintext
/*
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* Copyright (c) 2019-2020 Cobham Gaisler AB
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Linker command/script file for SPARC
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*/
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#include <soc.h>
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#include <autoconf.h>
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#include <linker/sections.h>
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#include <linker/linker-defs.h>
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#include <linker/linker-tool.h>
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ENTRY(CONFIG_KERNEL_ENTRY)
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SECTIONS
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{
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#include <linker/rel-sections.ld>
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_image_rom_start = .;
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SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
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{
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/* Trap table alignment required by SPARC V8 specification. */
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. = ALIGN(0x1000);
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_image_text_start = .;
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*(.text.traptable)
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*(.text)
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*(.text.*)
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*(.stub)
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*(.gnu.linkonce.t.*)
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} GROUP_LINK_IN(REGION_TEXT)
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_image_text_end = .;
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#include <linker/common-rom.ld>
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#include <linker/thread-local-storage.ld>
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SECTION_PROLOGUE(_RODATA_SECTION_NAME,,)
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{
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. = ALIGN(8);
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*(.rodata)
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*(.rodata.*)
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*(.gnu.linkonce.r.*)
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*(.rodata1)
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/* Located in generated directory. This file is populated by the
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* zephyr_linker_sources() Cmake function.
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*/
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#include <snippets-rodata.ld>
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} GROUP_LINK_IN(REGION_RODATA)
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#include <linker/cplusplus-rom.ld>
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_image_rom_end = .;
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__data_rom_start = .;
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SECTION_PROLOGUE(.plt,,)
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{
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*(.plt)
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}
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SECTION_PROLOGUE(.iplt,,)
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{
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*(.iplt)
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}
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SECTION_DATA_PROLOGUE(_DATA_SECTION_NAME,,)
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{
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. = ALIGN(8);
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_image_ram_start = .;
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__data_ram_start = .;
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*(.data)
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*(.data.*)
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*(.gnu.linkonce.d.*)
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SORT(CONSTRUCTORS)
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/* Located in generated directory. This file is populated by the
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* zephyr_linker_sources() Cmake function.
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*/
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#include <snippets-rwdata.ld>
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} GROUP_DATA_LINK_IN(REGION_DATA_VMA, REGION_DATA_LMA)
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#include <linker/common-ram.ld>
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/* Located in generated directory. This file is populated by the
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* zephyr_linker_sources() Cmake function.
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*/
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#include <snippets-ram-sections.ld>
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__data_ram_end = .;
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SECTION_DATA_PROLOGUE(_BSS_SECTION_NAME,(NOLOAD),)
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{
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/*
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* For performance, BSS section is assumed to be 4 byte aligned and
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* a multiple of 4 bytes
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*/
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. = ALIGN(4);
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__bss_start = .;
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*(.dynbss)
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*(.bss)
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*(.bss.*)
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*(.gnu.linkonce.b.*)
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COMMON_SYMBOLS
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/*
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* As memory is cleared in words only, it is simpler to ensure the BSS
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* section ends on a 4 byte boundary. This wastes a maximum of 3 bytes.
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*/
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__bss_end = ALIGN(4);
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} GROUP_LINK_IN(REGION_BSS)
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SECTION_PROLOGUE(_NOINIT_SECTION_NAME,(NOLOAD),)
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{
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/*
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* This section is used for non-initialized objects that
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* will not be cleared during the boot process.
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*/
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*(.noinit)
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*(.noinit.*)
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/* Located in generated directory. This file is populated by the
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* zephyr_linker_sources() Cmake function.
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*/
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#include <snippets-noinit.ld>
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} GROUP_LINK_IN(REGION_BSS)
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#include <linker/cplusplus-ram.ld>
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_image_ram_end = .;
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_end = .; /* end of image */
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/* Located in generated directory. This file is populated by the
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* zephyr_linker_sources() Cmake function.
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*/
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#include <snippets-sections.ld>
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#include <linker/debug-sections.ld>
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/DISCARD/ : { *(.note.GNU-stack) }
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/DISCARD/ : { *(.gnu_debuglink) }
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/DISCARD/ : { *(.gnu.lto_*) }
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SECTION_PROLOGUE(.gnu.attributes, 0,)
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{
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KEEP(*(.gnu.attributes))
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}
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}
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