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Blame sysdeps/arm/tls-macros.h

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#include <sysdep.h>                     /* For ARCH_HAS_T2.  */
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#ifdef __thumb2__
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# define ARM_PC_OFFSET "4"
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#else
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# define ARM_PC_OFFSET "8"
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#endif
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/* Returns the address of data containing ".word SYMBOL(RELOC)".  */
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#if defined (ARCH_HAS_T2) && !defined (PIC)
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# define GET_SPECIAL_RELOC(symbol, reloc)			\
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  ({								\
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    int *__##symbol##_rodata;					\
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    asm ("movw %0, #:lower16:1f\n"				\
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	 "movt %0, #:upper16:1f\n"				\
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	 ".pushsection .rodata.cst4, \"aM\", %%progbits, 4\n"	\
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	 ".balign 4\n"						\
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	 "1: .word " #symbol "(" #reloc ")\n"			\
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	 ".popsection"						\
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	 : "=r" (__##symbol##_rodata));				\
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    __##symbol##_rodata;					\
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  })
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#elif defined (ARCH_HAS_T2) && defined (PIC) && ARM_PCREL_MOVW_OK
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# define GET_SPECIAL_RELOC(symbol, reloc)			\
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  ({								\
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    int *__##symbol##_rodata;					\
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    asm ("movw %0, #:lower16:1f - 2f - " ARM_PC_OFFSET "\n"	\
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	 "movt %0, #:upper16:1f - 2f - " ARM_PC_OFFSET "\n"	\
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	 ".pushsection .rodata.cst4, \"aM\", %%progbits, 4\n"	\
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	 ".balign 4\n"						\
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	 "1: .word " #symbol "(" #reloc ")\n"			\
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	 ".popsection\n"					\
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	 "2: add %0, %0, pc"					\
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	 : "=r" (__##symbol##_rodata));				\
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    __##symbol##_rodata;					\
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  })
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#else
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# define GET_SPECIAL_RELOC(symbol, reloc)			\
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  ({								\
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    int *__##symbol##_rodata;					\
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    asm ("adr %0, 1f\n"						\
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	 "b 2f\n"						\
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	 ".balign 4\n"						\
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	 "1: .word " #symbol "(" #reloc ")\n"			\
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	 "2:"							\
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	 : "=r" (__##symbol##_rodata));				\
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    __##symbol##_rodata;					\
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  })
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#endif
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/* Returns the pointer value (SYMBOL(RELOC) + pc - PC_OFS).  */
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#define GET_SPECIAL_PCREL(symbol, reloc)				\
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  ({									\
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    int *__##symbol##_rodata = GET_SPECIAL_RELOC (symbol, reloc);	\
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    (void *) ((int) __##symbol##_rodata + *__##symbol##_rodata);	\
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  })
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#define TLS_LE(x)						\
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  (__builtin_thread_pointer () + *GET_SPECIAL_RELOC (x, tpoff))
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#define TLS_IE(x)						\
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  ((int *) (__builtin_thread_pointer ()				\
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	    + *(int *) GET_SPECIAL_PCREL (x, gottpoff)))
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extern void *__tls_get_addr (void *);
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#define TLS_LD(x)						\
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  ((int *) (__tls_get_addr (GET_SPECIAL_PCREL (x, tlsldm))	\
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	    + *GET_SPECIAL_RELOC (x, tlsldo)))
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#define TLS_GD(x)						\
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  ((int *) __tls_get_addr (GET_SPECIAL_PCREL (x, tlsgd)))