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/* SPDX-License-Identifier: GPL-2.0 */
#include <asm-generic/vmlinux.lds.h>
#ifdef CONFIG_HOTPLUG_CPU
#define ARM_CPU_DISCARD(x)
#define ARM_CPU_KEEP(x) x
#else
#define ARM_CPU_DISCARD(x) x
#define ARM_CPU_KEEP(x)
#endif
#if (defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)) || \
defined(CONFIG_GENERIC_BUG) || defined(CONFIG_JUMP_LABEL)
#define ARM_EXIT_KEEP(x) x
#define ARM_EXIT_DISCARD(x)
#else
#define ARM_EXIT_KEEP(x)
#define ARM_EXIT_DISCARD(x) x
#endif
#ifdef CONFIG_MMU
#define ARM_MMU_KEEP(x) KEEP(x)
#define ARM_MMU_DISCARD(x)
#else
#define ARM_MMU_KEEP(x)
#define ARM_MMU_DISCARD(x) x
#endif
/*
* ld.lld does not support NOCROSSREFS:
* https://github.com/ClangBuiltLinux/linux/issues/1609
*/
#ifdef CONFIG_LD_IS_LLD
#define NOCROSSREFS
#endif
#ifdef CONFIG_LD_CAN_USE_KEEP_IN_OVERLAY
#define OVERLAY_KEEP(x) KEEP(x)
#else
#define OVERLAY_KEEP(x) x
#endif
/* Set start/end symbol names to the LMA for the section */
#define ARM_LMA(sym, section) \
sym##_start = LOADADDR(section); \
sym##_end = LOADADDR(section) + SIZEOF(section)
#define PROC_INFO \
. = ALIGN(4); \
__proc_info_begin = .; \
KEEP(*(.proc.info.init)) \
__proc_info_end = .;
#define IDMAP_TEXT \
ALIGN_FUNCTION(); \
__idmap_text_start = .; \
*(.idmap.text) \
__idmap_text_end = .; \
#define ARM_DISCARD \
*(.ARM.exidx.exit.text) \
*(.ARM.extab.exit.text) \
*(.ARM.exidx.text.exit) \
*(.ARM.extab.text.exit) \
ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text)) \
ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text)) \
ARM_EXIT_DISCARD(EXIT_TEXT) \
ARM_EXIT_DISCARD(EXIT_DATA) \
EXIT_CALL \
ARM_MMU_DISCARD(*(.text.fixup)) \
ARM_MMU_DISCARD(*(__ex_table)) \
COMMON_DISCARDS
/*
* Sections that should stay zero sized, which is safer to explicitly
* check instead of blindly discarding.
*/
#define ARM_ASSERTS \
.plt : { \
*(.iplt) *(.rel.iplt) *(.iplt) *(.igot.plt) \
} \
ASSERT(SIZEOF(.plt) == 0, \
"Unexpected run-time procedure linkages detected!")
#define ARM_DETAILS \
ELF_DETAILS \
.ARM.attributes 0 : { *(.ARM.attributes) }
#define ARM_STUBS_TEXT \
*(.gnu.warning) \
*(.glue_7) \
*(.glue_7t) \
*(.vfp11_veneer) \
*(.v4_bx)
#define ARM_TEXT \
IDMAP_TEXT \
__entry_text_start = .; \
*(.entry.text) \
__entry_text_end = .; \
IRQENTRY_TEXT \
SOFTIRQENTRY_TEXT \
TEXT_TEXT \
SCHED_TEXT \
LOCK_TEXT \
KPROBES_TEXT \
ARM_STUBS_TEXT \
. = ALIGN(4); \
*(.got) /* Global offset table */ \
ARM_CPU_KEEP(PROC_INFO)
/* Stack unwinding tables */
#define ARM_UNWIND_SECTIONS \
. = ALIGN(8); \
.ARM.unwind_idx : { \
__start_unwind_idx = .; \
*(.ARM.exidx*) \
__stop_unwind_idx = .; \
} \
.ARM.unwind_tab : { \
__start_unwind_tab = .; \
*(.ARM.extab*) \
__stop_unwind_tab = .; \
}
/*
* The vectors and stubs are relocatable code, and the
* only thing that matters is their relative offsets
*/
#define ARM_VECTORS \
__vectors_lma = .; \
OVERLAY 0xffff0000 : NOCROSSREFS AT(__vectors_lma) { \
.vectors { \
OVERLAY_KEEP(*(.vectors)) \
} \
.vectors.bhb.loop8 { \
OVERLAY_KEEP(*(.vectors.bhb.loop8)) \
} \
.vectors.bhb.bpiall { \
OVERLAY_KEEP(*(.vectors.bhb.bpiall)) \
} \
} \
ARM_LMA(__vectors, .vectors); \
ARM_LMA(__vectors_bhb_loop8, .vectors.bhb.loop8); \
ARM_LMA(__vectors_bhb_bpiall, .vectors.bhb.bpiall); \
. = __vectors_lma + SIZEOF(.vectors) + \
SIZEOF(.vectors.bhb.loop8) + \
SIZEOF(.vectors.bhb.bpiall); \
\
__stubs_lma = .; \
.stubs ADDR(.vectors) + 0x1000 : AT(__stubs_lma) { \
*(.stubs) \
} \
ARM_LMA(__stubs, .stubs); \
. = __stubs_lma + SIZEOF(.stubs); \
\
PROVIDE(vector_fiq_offset = vector_fiq - ADDR(.vectors));
#define ARM_TCM \
__itcm_start = ALIGN(4); \
.text_itcm ITCM_OFFSET : AT(__itcm_start - LOAD_OFFSET) { \
__sitcm_text = .; \
*(.tcm.text) \
*(.tcm.rodata) \
. = ALIGN(4); \
__eitcm_text = .; \
} \
. = __itcm_start + SIZEOF(.text_itcm); \
\
__dtcm_start = .; \
.data_dtcm DTCM_OFFSET : AT(__dtcm_start - LOAD_OFFSET) { \
__sdtcm_data = .; \
*(.tcm.data) \
. = ALIGN(4); \
__edtcm_data = .; \
} \
. = __dtcm_start + SIZEOF(.data_dtcm);
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