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author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2018-02-27 22:39:27 -0500 |
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committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2018-03-09 20:19:01 -0500 |
commit | 2f181e0ba8db654cf9e1b6abe454aebca9587448 (patch) | |
tree | 16d86241f1e85cdc5d5ca8e723f6cdbc7d8ddc65 /arch/arm/kernel | |
parent | 91ab883eb21325ad80f3473633f794c78ac87f51 (diff) | |
download | lwn-2f181e0ba8db654cf9e1b6abe454aebca9587448.tar.gz lwn-2f181e0ba8db654cf9e1b6abe454aebca9587448.zip |
ARM: linker script: factor out some common definitions between XIP and non-XIP
Lots of duplications between vmlinux.lds.S and vmlinux-xip.lds.S.
This may lead to one file being updated but not the other. For example,
SOFTIRQENTRY_TEXT and HYPERVISOR_TEXT were missing from the XIP version.
This creates vmlinux.lds.h where a bunch of common defines are moved.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Chris Brandt <Chris.Brandt@renesas.com>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r-- | arch/arm/kernel/vmlinux-xip.lds.S | 35 | ||||
-rw-r--r-- | arch/arm/kernel/vmlinux.lds.S | 38 | ||||
-rw-r--r-- | arch/arm/kernel/vmlinux.lds.h | 40 |
3 files changed, 44 insertions, 69 deletions
diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S index 12b87591eb7c..0a8922b61613 100644 --- a/arch/arm/kernel/vmlinux-xip.lds.S +++ b/arch/arm/kernel/vmlinux-xip.lds.S @@ -15,38 +15,7 @@ #include <asm/memory.h> #include <asm/page.h> -#define PROC_INFO \ - . = ALIGN(4); \ - VMLINUX_SYMBOL(__proc_info_begin) = .; \ - *(.proc.info.init) \ - VMLINUX_SYMBOL(__proc_info_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) = .; - -#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) -#define ARM_EXIT_KEEP(x) x -#define ARM_EXIT_DISCARD(x) -#else -#define ARM_EXIT_KEEP(x) -#define ARM_EXIT_DISCARD(x) x -#endif +#include "vmlinux.lds.h" OUTPUT_ARCH(arm) ENTRY(stext) @@ -100,10 +69,12 @@ SECTIONS *(.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) diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 84a1ae3ce46e..6a6eb483d92c 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -15,43 +15,7 @@ #include <asm/page.h> #include <asm/pgtable.h> -#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) = .; - -#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 +#include "vmlinux.lds.h" OUTPUT_ARCH(arm) ENTRY(stext) diff --git a/arch/arm/kernel/vmlinux.lds.h b/arch/arm/kernel/vmlinux.lds.h new file mode 100644 index 000000000000..0a86e8a1119e --- /dev/null +++ b/arch/arm/kernel/vmlinux.lds.h @@ -0,0 +1,40 @@ +/* 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 + +#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) = .; + |