 b8199546a4
			
		
	
	
	b8199546a4
	
	
	
		
			
			Some toolchains (including Cavium OCTEON SDK) are emitting .eh_frame sections by default. Discard them as they are useless in the kernel. Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5684/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
		
			
				
	
	
		
			184 lines
		
	
	
	
		
			3.7 KiB
			
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			184 lines
		
	
	
	
		
			3.7 KiB
			
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
| #include <asm/asm-offsets.h>
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| #include <asm/thread_info.h>
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| 
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| #define PAGE_SIZE _PAGE_SIZE
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| 
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| /*
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|  * Put .bss..swapper_pg_dir as the first thing in .bss. This will
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|  * ensure that it has .bss alignment (64K).
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|  */
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| #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
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| 
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| #include <asm-generic/vmlinux.lds.h>
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| 
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| #undef mips
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| #define mips mips
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| OUTPUT_ARCH(mips)
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| ENTRY(kernel_entry)
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| PHDRS {
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| 	text PT_LOAD FLAGS(7);	/* RWX */
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| 	note PT_NOTE FLAGS(4);	/* R__ */
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| }
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| 
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| #ifdef CONFIG_32BIT
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| 	#ifdef CONFIG_CPU_LITTLE_ENDIAN
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| 		jiffies	 = jiffies_64;
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| 	#else
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| 		jiffies	 = jiffies_64 + 4;
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| 	#endif
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| #else
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| 	jiffies	 = jiffies_64;
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| #endif
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| 
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| SECTIONS
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| {
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| #ifdef CONFIG_BOOT_ELF64
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| 	/* Read-only sections, merged into text segment: */
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| 	/* . = 0xc000000000000000; */
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| 
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| 	/* This is the value for an Origin kernel, taken from an IRIX kernel.  */
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| 	/* . = 0xc00000000001c000; */
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| 
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| 	/* Set the vaddr for the text segment to a value
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| 	 *   >= 0xa800 0000 0001 9000 if no symmon is going to configured
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| 	 *   >= 0xa800 0000 0030 0000 otherwise
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| 	 */
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| 
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| 	/* . = 0xa800000000300000; */
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| 	. = 0xffffffff80300000;
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| #endif
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| 	. = VMLINUX_LOAD_ADDRESS;
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| 	/* read-only */
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| 	_text = .;	/* Text and read-only data */
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| 	.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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| 		IRQENTRY_TEXT
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| 		*(.text.*)
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| 		*(.fixup)
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| 		*(.gnu.warning)
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| 	} :text = 0
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| 	_etext = .;	/* End of text section */
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| 
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| 	EXCEPTION_TABLE(16)
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| 
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| 	/* Exception table for data bus errors */
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| 	__dbe_table : {
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| 		__start___dbe_table = .;
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| 		*(__dbe_table)
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| 		__stop___dbe_table = .;
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| 	}
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| 
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| 	NOTES :text :note
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| 	.dummy : { *(.dummy) } :text
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| 
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| 	_sdata = .;			/* Start of data section */
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| 	RODATA
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| 
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| 	/* writeable */
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| 	.data : {	/* Data */
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| 		. = . + DATAOFFSET;		/* for CONFIG_MAPPED_KERNEL */
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| 
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| 		INIT_TASK_DATA(THREAD_SIZE)
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| 		NOSAVE_DATA
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| 		CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
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| 		READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
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| 		DATA_DATA
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| 		CONSTRUCTORS
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| 	}
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| 	_gp = . + 0x8000;
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| 	.lit8 : {
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| 		*(.lit8)
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| 	}
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| 	.lit4 : {
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| 		*(.lit4)
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| 	}
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| 	/* We want the small data sections together, so single-instruction offsets
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| 	   can access them all, and initialized data all before uninitialized, so
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| 	   we can shorten the on-disk segment size.  */
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| 	.sdata : {
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| 		*(.sdata)
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| 	}
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| 	_edata =  .;			/* End of data section */
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| 
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| 	/* will be freed after init */
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| 	. = ALIGN(PAGE_SIZE);		/* Init code and data */
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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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| 
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| 	. = ALIGN(4);
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| 	.mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
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| 		__mips_machines_start = .;
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| 		*(.mips.machines.init)
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| 		__mips_machines_end = .;
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| 	}
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| 
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| 	/* .exit.text is discarded at runtime, not link time, to deal with
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| 	 * references from .rodata
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| 	 */
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| 	.exit.text : {
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| 		EXIT_TEXT
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| 	}
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| 	.exit.data : {
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| 		EXIT_DATA
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| 	}
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| 
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| 	PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
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| 	/*
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| 	 * Align to 64K in attempt to eliminate holes before the
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| 	 * .bss..swapper_pg_dir section at the start of .bss.  This
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| 	 * also satisfies PAGE_SIZE alignment as the largest page size
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| 	 * allowed is 64K.
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| 	 */
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| 	. = ALIGN(0x10000);
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| 	__init_end = .;
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| 	/* freed after init ends here */
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| 
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| 	/*
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| 	 * Force .bss to 64K alignment so that .bss..swapper_pg_dir
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| 	 * gets that alignment.	 .sbss should be empty, so there will be
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| 	 * no holes after __init_end. */
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| 	BSS_SECTION(0, 0x10000, 0)
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| 
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| 	_end = . ;
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| 
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| 	/* These mark the ABI of the kernel for debuggers.  */
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| 	.mdebug.abi32 : {
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| 		KEEP(*(.mdebug.abi32))
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| 	}
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| 	.mdebug.abi64 : {
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| 		KEEP(*(.mdebug.abi64))
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| 	}
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| 
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| 	/* This is the MIPS specific mdebug section.  */
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| 	.mdebug : {
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| 		*(.mdebug)
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| 	}
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| 
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| 	STABS_DEBUG
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| 	DWARF_DEBUG
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| 
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| 	/* These must appear regardless of  .  */
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| 	.gptab.sdata : {
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| 		*(.gptab.data)
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| 		*(.gptab.sdata)
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| 	}
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| 	.gptab.sbss : {
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| 		*(.gptab.bss)
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| 		*(.gptab.sbss)
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| 	}
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| 
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| 	/* Sections to be discarded */
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| 	DISCARDS
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| 	/DISCARD/ : {
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| 		/* ABI crap starts here */
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| 		*(.MIPS.options)
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| 		*(.options)
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| 		*(.pdr)
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| 		*(.reginfo)
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| 		*(.eh_frame)
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| 	}
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| }
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