245 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			245 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| #ifndef __ASM_SH_ELF_H
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| #define __ASM_SH_ELF_H
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| 
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| #include <linux/utsname.h>
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| #include <asm/auxvec.h>
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| #include <asm/ptrace.h>
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| #include <asm/user.h>
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| 
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| /* ELF header e_flags defines */
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| #define EF_SH_PIC		0x100	/* -fpic */
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| #define EF_SH_FDPIC		0x8000	/* -mfdpic */
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| 
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| /* SH (particularly SHcompact) relocation types  */
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| #define	R_SH_NONE		0
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| #define	R_SH_DIR32		1
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| #define	R_SH_REL32		2
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| #define	R_SH_DIR8WPN		3
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| #define	R_SH_IND12W		4
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| #define	R_SH_DIR8WPL		5
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| #define	R_SH_DIR8WPZ		6
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| #define	R_SH_DIR8BP		7
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| #define	R_SH_DIR8W		8
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| #define	R_SH_DIR8L		9
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| #define	R_SH_SWITCH16		25
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| #define	R_SH_SWITCH32		26
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| #define	R_SH_USES		27
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| #define	R_SH_COUNT		28
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| #define	R_SH_ALIGN		29
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| #define	R_SH_CODE		30
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| #define	R_SH_DATA		31
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| #define	R_SH_LABEL		32
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| #define	R_SH_SWITCH8		33
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| #define	R_SH_GNU_VTINHERIT	34
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| #define	R_SH_GNU_VTENTRY	35
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| #define	R_SH_TLS_GD_32		144
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| #define	R_SH_TLS_LD_32		145
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| #define	R_SH_TLS_LDO_32		146
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| #define	R_SH_TLS_IE_32		147
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| #define	R_SH_TLS_LE_32		148
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| #define	R_SH_TLS_DTPMOD32	149
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| #define	R_SH_TLS_DTPOFF32	150
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| #define	R_SH_TLS_TPOFF32	151
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| #define	R_SH_GOT32		160
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| #define	R_SH_PLT32		161
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| #define	R_SH_COPY		162
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| #define	R_SH_GLOB_DAT		163
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| #define	R_SH_JMP_SLOT		164
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| #define	R_SH_RELATIVE		165
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| #define	R_SH_GOTOFF		166
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| #define	R_SH_GOTPC		167
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| 
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| /* FDPIC relocs */
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| #define R_SH_GOT20		70
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| #define R_SH_GOTOFF20		71
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| #define R_SH_GOTFUNCDESC	72
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| #define R_SH_GOTFUNCDESC20	73
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| #define R_SH_GOTOFFFUNCDESC	74
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| #define R_SH_GOTOFFFUNCDESC20	75
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| #define R_SH_FUNCDESC		76
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| #define R_SH_FUNCDESC_VALUE	77
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| 
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| #if 0 /* XXX - later .. */
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| #define R_SH_GOT20		198
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| #define R_SH_GOTOFF20		199
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| #define R_SH_GOTFUNCDESC	200
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| #define R_SH_GOTFUNCDESC20	201
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| #define R_SH_GOTOFFFUNCDESC	202
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| #define R_SH_GOTOFFFUNCDESC20	203
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| #define R_SH_FUNCDESC		204
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| #define R_SH_FUNCDESC_VALUE	205
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| #endif
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| 
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| /* SHmedia relocs */
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| #define R_SH_IMM_LOW16		246
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| #define R_SH_IMM_LOW16_PCREL	247
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| #define R_SH_IMM_MEDLOW16	248
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| #define R_SH_IMM_MEDLOW16_PCREL	249
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| /* Keep this the last entry.  */
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| #define	R_SH_NUM		256
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| 
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| /*
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|  * ELF register definitions..
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|  */
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| 
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| typedef unsigned long elf_greg_t;
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| 
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| #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
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| typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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| 
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| typedef struct user_fpu_struct elf_fpregset_t;
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| 
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| /*
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|  * These are used to set parameters in the core dumps.
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|  */
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| #define ELF_CLASS	ELFCLASS32
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| #ifdef __LITTLE_ENDIAN__
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| #define ELF_DATA	ELFDATA2LSB
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| #else
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| #define ELF_DATA	ELFDATA2MSB
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| #endif
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| #define ELF_ARCH	EM_SH
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| 
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| #ifdef __KERNEL__
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| /*
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|  * This is used to ensure we don't load something for the wrong architecture.
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|  */
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| #define elf_check_arch(x)		((x)->e_machine == EM_SH)
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| #define elf_check_fdpic(x)		((x)->e_flags & EF_SH_FDPIC)
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| #define elf_check_const_displacement(x)	((x)->e_flags & EF_SH_PIC)
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| 
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| /*
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|  * Enable dump using regset.
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|  * This covers all of general/DSP/FPU regs.
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|  */
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| #define CORE_DUMP_USE_REGSET
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| 
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| #define USE_ELF_CORE_DUMP
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| #define ELF_FDPIC_CORE_EFLAGS	EF_SH_FDPIC
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| #define ELF_EXEC_PAGESIZE	PAGE_SIZE
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| 
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| /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
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|    use of this is to invoke "./ld.so someprog" to test out a new version of
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|    the loader.  We need to make sure that it is out of the way of the program
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|    that it will "exec", and that there is sufficient room for the brk.  */
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| 
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| #define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
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| 
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| #define ELF_CORE_COPY_REGS(_dest,_regs)				\
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| 	memcpy((char *) &_dest, (char *) _regs,			\
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| 	       sizeof(struct pt_regs));
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| 
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| /* This yields a mask that user programs can use to figure out what
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|    instruction set this CPU supports.  This could be done in user space,
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|    but it's not easy, and we've already done it here.  */
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| 
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| #define ELF_HWCAP	(boot_cpu_data.flags)
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| 
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| /* This yields a string that ld.so will use to load implementation
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|    specific libraries for optimization.  This is more specific in
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|    intent than poking at uname or /proc/cpuinfo.
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| 
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|    For the moment, we have only optimizations for the Intel generations,
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|    but that could change... */
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| 
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| #define ELF_PLATFORM	(utsname()->machine)
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| 
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| #ifdef __SH5__
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| #define ELF_PLAT_INIT(_r, load_addr) \
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|   do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
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|        _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
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|        _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
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|        _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
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|        _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
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|        _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
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|        _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
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|        _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
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|        _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
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|        _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
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|        _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
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|        _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
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|        _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
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|        _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
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|        _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
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|        _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
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|        _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
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|        _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
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|        _r->sr = SR_FD | SR_MMU; } while (0)
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| #else
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| #define ELF_PLAT_INIT(_r, load_addr) \
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|   do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
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|        _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
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|        _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
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|        _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
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|        _r->sr = SR_FD; } while (0)
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| 
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| #define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr,	\
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| 			    _dynamic_addr)				\
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| do {									\
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| 	_r->regs[0]	= 0;						\
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| 	_r->regs[1]	= 0;						\
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| 	_r->regs[2]	= 0;						\
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| 	_r->regs[3]	= 0;						\
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| 	_r->regs[4]	= 0;						\
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| 	_r->regs[5]	= 0;						\
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| 	_r->regs[6]	= 0;						\
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| 	_r->regs[7]	= 0;						\
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| 	_r->regs[8]	= _exec_map_addr;				\
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| 	_r->regs[9]	= _interp_map_addr;				\
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| 	_r->regs[10]	= _dynamic_addr;				\
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| 	_r->regs[11]	= 0;						\
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| 	_r->regs[12]	= 0;						\
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| 	_r->regs[13]	= 0;						\
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| 	_r->regs[14]	= 0;						\
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| 	_r->sr		= SR_FD;					\
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| } while (0)
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| #endif
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| 
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| #define SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT)
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| 
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| #ifdef CONFIG_VSYSCALL
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| /* vDSO has arch_setup_additional_pages */
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| #define ARCH_HAS_SETUP_ADDITIONAL_PAGES
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| struct linux_binprm;
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| extern int arch_setup_additional_pages(struct linux_binprm *bprm,
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| 				       int uses_interp);
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| 
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| extern unsigned int vdso_enabled;
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| extern void __kernel_vsyscall;
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| 
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| #define VDSO_BASE		((unsigned long)current->mm->context.vdso)
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| #define VDSO_SYM(x)		(VDSO_BASE + (unsigned long)(x))
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| 
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| #define VSYSCALL_AUX_ENT					\
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| 	if (vdso_enabled)					\
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| 		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);
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| #else
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| #define VSYSCALL_AUX_ENT
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| #endif /* CONFIG_VSYSCALL */
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| 
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| #ifdef CONFIG_SH_FPU
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| #define FPU_AUX_ENT	NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
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| #else
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| #define FPU_AUX_ENT
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| #endif
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| 
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| extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
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| 
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| /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
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| #define ARCH_DLINFO						\
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| do {								\
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| 	/* Optional FPU initialization */			\
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| 	FPU_AUX_ENT;						\
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| 								\
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| 	/* Optional vsyscall entry */				\
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| 	VSYSCALL_AUX_ENT;					\
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| 								\
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| 	/* Cache desc */					\
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| 	NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape);	\
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| 	NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape);	\
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| 	NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape);		\
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| } while (0)
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| 
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| #endif /* __KERNEL__ */
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| #endif /* __ASM_SH_ELF_H */
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