core_kernel_data() wants to know if an address looks like kernel data. IA64 has had _edata forever, but never needed _sdata until now. Signed-off-by: Tony Luck <tony.luck@intel.com>
		
			
				
	
	
		
			255 lines
		
	
	
	
		
			5 KiB
			
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			255 lines
		
	
	
	
		
			5 KiB
			
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
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#include <asm/cache.h>
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#include <asm/ptrace.h>
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#include <asm/system.h>
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#include <asm/pgtable.h>
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#include <asm-generic/vmlinux.lds.h>
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OUTPUT_FORMAT("elf64-ia64-little")
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OUTPUT_ARCH(ia64)
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ENTRY(phys_start)
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jiffies = jiffies_64;
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PHDRS {
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	code   PT_LOAD;
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	percpu PT_LOAD;
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	data   PT_LOAD;
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	note   PT_NOTE;
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	unwind 0x70000001; /* PT_IA_64_UNWIND, but ld doesn't match the name */
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}
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SECTIONS {
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	/*
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	 * unwind exit sections must be discarded before
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	 * the rest of the sections get included.
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	 */
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	/DISCARD/ : {
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		*(.IA_64.unwind.exit.text)
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		*(.IA_64.unwind_info.exit.text)
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		*(.comment)
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		*(.note)
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	}
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	v = PAGE_OFFSET; /* this symbol is here to make debugging easier... */
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	phys_start = _start - LOAD_OFFSET;
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	code : {
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	} :code
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	. = KERNEL_START;
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	_text = .;
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	_stext = .;
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	.text : AT(ADDR(.text) - LOAD_OFFSET) {
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		__start_ivt_text = .;
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		*(.text..ivt)
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		__end_ivt_text = .;
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		TEXT_TEXT
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		SCHED_TEXT
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		LOCK_TEXT
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		KPROBES_TEXT
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		*(.gnu.linkonce.t*)
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	}
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	.text2 : AT(ADDR(.text2) - LOAD_OFFSET)	{
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		*(.text2)
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	}
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#ifdef CONFIG_SMP
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	.text..lock : AT(ADDR(.text..lock) - LOAD_OFFSET) {
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		*(.text..lock)
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	}
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#endif
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	_etext = .;
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	/*
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	 * Read-only data
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	 */
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	NOTES :code :note       /* put .notes in text and mark in PT_NOTE  */
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	code_continues : {
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	} : code               /* switch back to regular program...  */
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	EXCEPTION_TABLE(16)
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	/* MCA table */
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	. = ALIGN(16);
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	__mca_table : AT(ADDR(__mca_table) - LOAD_OFFSET) {
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		__start___mca_table = .;
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		*(__mca_table)
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		__stop___mca_table = .;
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	}
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	.data..patch.phys_stack_reg : AT(ADDR(.data..patch.phys_stack_reg) - LOAD_OFFSET) {
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		__start___phys_stack_reg_patchlist = .;
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		*(.data..patch.phys_stack_reg)
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		__end___phys_stack_reg_patchlist = .;
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	}
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	/*
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	 * Global data
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	 */
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	_data = .;
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	/* Unwind info & table: */
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	. = ALIGN(8);
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	.IA_64.unwind_info : AT(ADDR(.IA_64.unwind_info) - LOAD_OFFSET) {
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		*(.IA_64.unwind_info*)
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	}
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	.IA_64.unwind : AT(ADDR(.IA_64.unwind) - LOAD_OFFSET) {
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		__start_unwind = .;
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		*(.IA_64.unwind*)
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		__end_unwind = .;
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	} :code :unwind
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	code_continues2 : {
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	} : code
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	RODATA
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	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
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		*(.opd)
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	}
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	/*
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	 * Initialization code and data:
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	 */
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	. = ALIGN(PAGE_SIZE);
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	__init_begin = .;
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	INIT_TEXT_SECTION(PAGE_SIZE)
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	INIT_DATA_SECTION(16)
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	.data..patch.vtop : AT(ADDR(.data..patch.vtop) - LOAD_OFFSET) {
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		__start___vtop_patchlist = .;
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		*(.data..patch.vtop)
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		__end___vtop_patchlist = .;
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	}
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	.data..patch.rse : AT(ADDR(.data..patch.rse) - LOAD_OFFSET) {
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		__start___rse_patchlist = .;
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		*(.data..patch.rse)
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		__end___rse_patchlist = .;
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	}
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	.data..patch.mckinley_e9 : AT(ADDR(.data..patch.mckinley_e9) - LOAD_OFFSET) {
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		__start___mckinley_e9_bundles = .;
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		*(.data..patch.mckinley_e9)
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		__end___mckinley_e9_bundles = .;
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	}
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#if defined(CONFIG_PARAVIRT)
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	. = ALIGN(16);
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	.paravirt_bundles : AT(ADDR(.paravirt_bundles) - LOAD_OFFSET) {
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		__start_paravirt_bundles = .;
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		*(.paravirt_bundles)
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		__stop_paravirt_bundles = .;
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	}
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	. = ALIGN(16);
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	.paravirt_insts : AT(ADDR(.paravirt_insts) - LOAD_OFFSET) {
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		__start_paravirt_insts = .;
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		*(.paravirt_insts)
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		__stop_paravirt_insts = .;
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	}
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	. = ALIGN(16);
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	.paravirt_branches : AT(ADDR(.paravirt_branches) - LOAD_OFFSET) {
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		__start_paravirt_branches = .;
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		*(.paravirt_branches)
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		__stop_paravirt_branches = .;
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	}
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#endif
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#if defined(CONFIG_IA64_GENERIC)
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	/* Machine Vector */
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	. = ALIGN(16);
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	.machvec : AT(ADDR(.machvec) - LOAD_OFFSET) {
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		machvec_start = .;
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		*(.machvec)
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		machvec_end = .;
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	}
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#endif
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#ifdef	CONFIG_SMP
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	. = ALIGN(PERCPU_PAGE_SIZE);
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	__cpu0_per_cpu = .;
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	. = . + PERCPU_PAGE_SIZE;   /* cpu0 per-cpu space */
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#endif
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	. = ALIGN(PAGE_SIZE);
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	__init_end = .;
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	.data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) {
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		PAGE_ALIGNED_DATA(PAGE_SIZE)
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		. = ALIGN(PAGE_SIZE);
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		__start_gate_section = .;
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		*(.data..gate)
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		__stop_gate_section = .;
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#ifdef CONFIG_XEN
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		. = ALIGN(PAGE_SIZE);
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		__xen_start_gate_section = .;
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		*(.data..gate.xen)
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		__xen_stop_gate_section = .;
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#endif
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	}
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	/*
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	 * make sure the gate page doesn't expose
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	 * kernel data
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	 */
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	. = ALIGN(PAGE_SIZE);
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	/* Per-cpu data: */
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	. = ALIGN(PERCPU_PAGE_SIZE);
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	PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu)
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	__phys_per_cpu_start = __per_cpu_load;
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	/*
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	 * ensure percpu data fits
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	 * into percpu page size
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	 */
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	. = __phys_per_cpu_start + PERCPU_PAGE_SIZE;
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	data : {
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	} :data
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	.data : AT(ADDR(.data) - LOAD_OFFSET) {
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		_sdata  =  .;
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		INIT_TASK_DATA(PAGE_SIZE)
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		CACHELINE_ALIGNED_DATA(SMP_CACHE_BYTES)
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		READ_MOSTLY_DATA(SMP_CACHE_BYTES)
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		DATA_DATA
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		*(.data1)
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		*(.gnu.linkonce.d*)
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		CONSTRUCTORS
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	}
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	. = ALIGN(16);	/* gp must be 16-byte aligned for exc. table */
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	.got : AT(ADDR(.got) - LOAD_OFFSET) {
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		*(.got.plt)
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		*(.got)
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	}
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	__gp = ADDR(.got) + 0x200000;
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	/*
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	 * We want the small data sections together,
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	 * so single-instruction offsets can access
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	 * them all, and initialized data all before
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	 * uninitialized, so we can shorten the
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	 * on-disk segment size.
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	 */
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	.sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
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		*(.sdata)
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		*(.sdata1)
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		*(.srdata)
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	}
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	_edata  =  .;
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	BSS_SECTION(0, 0, 0)
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	_end = .;
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	code : {
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	} :code
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	STABS_DEBUG
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	DWARF_DEBUG
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	/* Default discards */
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	DISCARDS
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}
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