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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-10-01 16:37:05 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-10-08 11:07:32 +0200 |
| commit | 5085f3ff458521045f7e43da62b8c30ea7df2e82 (patch) | |
| tree | 3820362ac7e1a52ba398909fa1bd024ba4fc552d /arch/arm/kernel/vmlinux.lds.S | |
| parent | ARM: hotplug cpu: setup 1:1 map for entire kernel image for secondary CPUs (diff) | |
| download | linux-5085f3ff458521045f7e43da62b8c30ea7df2e82.tar.xz linux-5085f3ff458521045f7e43da62b8c30ea7df2e82.zip | |
ARM: hotplug cpu: Keep processor information, startup code & __lookup_processor_type
When hotplug CPU is enabled, we need to keep the list of supported CPUs,
their setup functions, and __lookup_processor_type in place so that we
can find and initialize secondary CPUs. Move these into the __CPUINIT
section.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/arm/kernel/vmlinux.lds.S | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index b16c07914b55..1630524a3097 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -8,6 +8,19 @@ #include <asm/memory.h> #include <asm/page.h> +#define PROC_INFO \ + VMLINUX_SYMBOL(__proc_info_begin) = .; \ + *(.proc.info.init) \ + VMLINUX_SYMBOL(__proc_info_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 + OUTPUT_ARCH(arm) ENTRY(stext) @@ -31,9 +44,7 @@ SECTIONS HEAD_TEXT INIT_TEXT _einittext = .; - __proc_info_begin = .; - *(.proc.info.init) - __proc_info_end = .; + ARM_CPU_DISCARD(PROC_INFO) __arch_info_begin = .; *(.arch.info.init) __arch_info_end = .; @@ -68,10 +79,8 @@ SECTIONS /DISCARD/ : { *(.ARM.exidx.exit.text) *(.ARM.extab.exit.text) -#ifndef CONFIG_HOTPLUG_CPU - *(.ARM.exidx.cpuexit.text) - *(.ARM.extab.cpuexit.text) -#endif + ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text)) + ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text)) #ifndef CONFIG_HOTPLUG *(.ARM.exidx.devexit.text) *(.ARM.extab.devexit.text) @@ -100,6 +109,7 @@ SECTIONS *(.glue_7) *(.glue_7t) *(.got) /* Global offset table */ + ARM_CPU_KEEP(PROC_INFO) } RO_DATA(PAGE_SIZE) |