linux_dsm_epyc7002/arch/arm/kernel/vmlinux.lds.h
Nicolas Pitre d9a46e6e71 ARM: linker script: factor out unwinding table sections
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Chris Brandt <Chris.Brandt@renesas.com>
2018-03-09 20:19:55 -05:00

95 lines
2.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#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) x
#define ARM_MMU_DISCARD(x)
#else
#define ARM_MMU_KEEP(x)
#define ARM_MMU_DISCARD(x) x
#endif
#define PROC_INFO \
. = ALIGN(4); \
VMLINUX_SYMBOL(__proc_info_begin) = .; \
*(.proc.info.init) \
VMLINUX_SYMBOL(__proc_info_end) = .;
#define HYPERVISOR_TEXT \
VMLINUX_SYMBOL(__hyp_text_start) = .; \
*(.hyp.text) \
VMLINUX_SYMBOL(__hyp_text_end) = .;
#define IDMAP_TEXT \
ALIGN_FUNCTION(); \
VMLINUX_SYMBOL(__idmap_text_start) = .; \
*(.idmap.text) \
VMLINUX_SYMBOL(__idmap_text_end) = .; \
. = ALIGN(PAGE_SIZE); \
VMLINUX_SYMBOL(__hyp_idmap_text_start) = .; \
*(.hyp.idmap.text) \
VMLINUX_SYMBOL(__hyp_idmap_text_end) = .;
#define ARM_DISCARD \
*(.ARM.exidx.exit.text) \
*(.ARM.extab.exit.text) \
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)) \
*(.discard) \
*(.discard.*)
#define ARM_TEXT \
IDMAP_TEXT \
__entry_text_start = .; \
*(.entry.text) \
__entry_text_end = .; \
IRQENTRY_TEXT \
SOFTIRQENTRY_TEXT \
TEXT_TEXT \
SCHED_TEXT \
CPUIDLE_TEXT \
LOCK_TEXT \
HYPERVISOR_TEXT \
KPROBES_TEXT \
*(.gnu.warning) \
*(.glue_7) \
*(.glue_7t) \
. = 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 = .; \
}