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yaml --- r: 145660 b: refs/heads/master c: 17ce265 h: refs/heads/master v: v3
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Sam Ravnborg
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Ingo Molnar
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Apr 29, 2009
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--- | ||
refs/heads/master: aee6a166a5401dcfcb17fcdc055e5edf2a4f4042 | ||
refs/heads/master: 17ce265d6a1789eae5eb739a3bb7fcffdb3e87c5 |
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/* | ||
* ld script for the x86 kernel | ||
* | ||
* Historic 32-bit version written by Martin Mares <mj@atrey.karlin.mff.cuni.cz> | ||
* | ||
* Modernisation and unification done by Sam Ravnborg <sam@ravnborg.org> | ||
* | ||
* | ||
* Don't define absolute symbols until and unless you know that symbol | ||
* value is should remain constant even if kernel image is relocated | ||
* at run time. Absolute symbols are not relocated. If symbol value should | ||
* change if kernel is relocated, make the symbol section relative and | ||
* put it inside the section definition. | ||
*/ | ||
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#ifdef CONFIG_X86_32 | ||
#define LOAD_OFFSET __PAGE_OFFSET | ||
#else | ||
#define LOAD_OFFSET __START_KERNEL_map | ||
#endif | ||
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#include <asm-generic/vmlinux.lds.h> | ||
#include <asm/asm-offsets.h> | ||
#include <asm/thread_info.h> | ||
#include <asm/page_types.h> | ||
#include <asm/cache.h> | ||
#include <asm/boot.h> | ||
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#undef i386 /* in case the preprocessor is a 32bit one */ | ||
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OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT) | ||
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#ifdef CONFIG_X86_32 | ||
OUTPUT_ARCH(i386) | ||
ENTRY(phys_startup_32) | ||
jiffies = jiffies_64; | ||
#else | ||
OUTPUT_ARCH(i386:x86-64) | ||
ENTRY(phys_startup_64) | ||
jiffies_64 = jiffies; | ||
#endif | ||
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#ifdef CONFIG_X86_32 | ||
# include "vmlinux_32.lds.S" | ||
#else | ||
# include "vmlinux_64.lds.S" | ||
#endif | ||
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#ifdef CONFIG_X86_32 | ||
ASSERT((_end - LOAD_OFFSET <= KERNEL_IMAGE_SIZE), | ||
"kernel image bigger than KERNEL_IMAGE_SIZE") | ||
#else | ||
/* | ||
* Per-cpu symbols which need to be offset from __per_cpu_load | ||
* for the boot processor. | ||
*/ | ||
#define INIT_PER_CPU(x) init_per_cpu__##x = per_cpu__##x + __per_cpu_load | ||
INIT_PER_CPU(gdt_page); | ||
INIT_PER_CPU(irq_stack_union); | ||
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/* | ||
* Build-time check on the image size: | ||
*/ | ||
ASSERT((_end - _text <= KERNEL_IMAGE_SIZE), | ||
"kernel image bigger than KERNEL_IMAGE_SIZE") | ||
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#ifdef CONFIG_SMP | ||
ASSERT((per_cpu__irq_stack_union == 0), | ||
"irq_stack_union is not at start of per-cpu area"); | ||
#endif | ||
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#endif /* CONFIG_X86_32 */ | ||
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#ifdef CONFIG_KEXEC | ||
#include <asm/kexec.h> | ||
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ASSERT(kexec_control_code_size <= KEXEC_CONTROL_CODE_MAX_SIZE, | ||
"kexec control code size is too big") | ||
#endif | ||
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