AcoSail/kernel_optimize_test
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linker script: kill PERCPU_VADDR_PREALLOC()

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Impact: cleanup

With .data.percpu.first in place, PERCPU_VADDR_PREALLOC() is no longer
necessary.  Kill it.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2009-01-19 12:21:28 +09:00
parent 0d974d4592
commit 6b7c38d555
1 changed files with 8 additions and 37 deletions
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45
include/asm-generic/vmlinux.lds.h
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@ -430,22 +430,10 @@
*(.initcall7.init) \
*(.initcall7s.init)
#define PERCPU_PROLOG(vaddr) \
VMLINUX_SYMBOL(__per_cpu_load) = .; \
.data.percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
- LOAD_OFFSET) { \
VMLINUX_SYMBOL(__per_cpu_start) = .;
#define PERCPU_EPILOG(phdr) \
VMLINUX_SYMBOL(__per_cpu_end) = .; \
} phdr \
. = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data.percpu);
/**
* PERCPU_VADDR_PREALLOC - define output section for percpu area with prealloc
* PERCPU_VADDR - define output section for percpu area
* @vaddr: explicit base address (optional)
* @phdr: destination PHDR (optional)
* @prealloc: the size of prealloc area
*
* Macro which expands to output section for percpu area. If @vaddr
* is not blank, it specifies explicit base address and all percpu
@ -457,40 +445,23 @@
* section in the linker script will go there too. @phdr should have
* a leading colon.
*
* If @prealloc is non-zero, the specified number of bytes will be
* reserved at the start of percpu area. As the prealloc area is
* likely to break alignment, this macro puts areas in increasing
* alignment order.
*
* This macro defines three symbols, __per_cpu_load, __per_cpu_start
* and __per_cpu_end. The first one is the vaddr of loaded percpu
* init data. __per_cpu_start equals @vaddr and __per_cpu_end is the
* end offset.
*/
#define PERCPU_VADDR_PREALLOC(vaddr, segment, prealloc) \
PERCPU_PROLOG(vaddr) \
. += prealloc; \
*(.data.percpu) \
*(.data.percpu.shared_aligned) \
*(.data.percpu.page_aligned) \
PERCPU_EPILOG(segment)
/**
* PERCPU_VADDR - define output section for percpu area
* @vaddr: explicit base address (optional)
* @phdr: destination PHDR (optional)
*
* Macro which expands to output section for percpu area. Mostly
* identical to PERCPU_VADDR_PREALLOC(@vaddr, @phdr, 0) other than
* using slighly different layout.
*/
#define PERCPU_VADDR(vaddr, phdr) \
PERCPU_PROLOG(vaddr) \
VMLINUX_SYMBOL(__per_cpu_load) = .; \
.data.percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
- LOAD_OFFSET) { \
VMLINUX_SYMBOL(__per_cpu_start) = .; \
*(.data.percpu.first) \
*(.data.percpu.page_aligned) \
*(.data.percpu) \
*(.data.percpu.shared_aligned) \
PERCPU_EPILOG(phdr)
VMLINUX_SYMBOL(__per_cpu_end) = .; \
} phdr \
. = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data.percpu);
/**
* PERCPU - define output section for percpu area, simple version