Blame sysdeps/sparc/sparc64/dl-machine.h

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/* Machine-dependent ELF dynamic relocation inline functions.  Sparc64 version.
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   Copyright (C) 1997-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#ifndef dl_machine_h
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#define dl_machine_h
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#define ELF_MACHINE_NAME "sparc64"
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#include <string.h>
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#include <sys/param.h>
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#include <ldsodefs.h>
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#include <sysdep.h>
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#include <dl-plt.h>
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#define ELF64_R_TYPE_ID(info)	((info) & 0xff)
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#define ELF64_R_TYPE_DATA(info) ((info) >> 8)
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/* Return nonzero iff ELF header is compatible with the running host.  */
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static inline int
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elf_machine_matches_host (const Elf64_Ehdr *ehdr)
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{
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  return ehdr->e_machine == EM_SPARCV9;
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}
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/* We have to do this because elf_machine_{dynamic,load_address} can be
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   invoked from functions that have no GOT references, and thus the compiler
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   has no obligation to load the PIC register.  */
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#define LOAD_PIC_REG(PIC_REG)	\
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do {	Elf64_Addr tmp;		\
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	__asm("sethi %%hi(_GLOBAL_OFFSET_TABLE_-4), %1\n\t" \
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	      "rd %%pc, %0\n\t" \
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	      "add %1, %%lo(_GLOBAL_OFFSET_TABLE_+4), %1\n\t" \
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	      "add %0, %1, %0" \
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	      : "=r" (PIC_REG), "=r" (tmp)); \
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} while (0)
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/* Return the link-time address of _DYNAMIC.  Conveniently, this is the
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   first element of the GOT.  This must be inlined in a function which
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   uses global data.  */
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static inline Elf64_Addr
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elf_machine_dynamic (void)
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{
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  register Elf64_Addr *elf_pic_register __asm__("%l7");
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  LOAD_PIC_REG (elf_pic_register);
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  return *elf_pic_register;
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}
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/* Return the run-time load address of the shared object.  */
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static inline Elf64_Addr
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elf_machine_load_address (void)
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{
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  register Elf32_Addr *pc __asm ("%o7");
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  register Elf64_Addr *got __asm ("%l7");
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  __asm ("sethi %%hi(_GLOBAL_OFFSET_TABLE_-4), %1\n\t"
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	 "call 1f\n\t"
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	 " add %1, %%lo(_GLOBAL_OFFSET_TABLE_+4), %1\n\t"
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	 "call _DYNAMIC\n\t"
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	 "call _GLOBAL_OFFSET_TABLE_\n"
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	 "1:\tadd %1, %0, %1\n\t" : "=r" (pc), "=r" (got));
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  /* got is now l_addr + _GLOBAL_OFFSET_TABLE_
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     *got is _DYNAMIC
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     pc[2]*4 is l_addr + _DYNAMIC - (long)pc - 8
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     pc[3]*4 is l_addr + _GLOBAL_OFFSET_TABLE_ - (long)pc - 12  */
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  return (Elf64_Addr) got - *got + (Elf32_Sword) ((pc[2] - pc[3]) * 4) - 4;
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}
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static inline Elf64_Addr __attribute__ ((always_inline))
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elf_machine_fixup_plt (struct link_map *map, lookup_t t,
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		       const ElfW(Sym) *refsym, const ElfW(Sym) *sym,
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		       const Elf64_Rela *reloc,
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		       Elf64_Addr *reloc_addr, Elf64_Addr value)
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{
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  sparc64_fixup_plt (map, reloc, reloc_addr, value + reloc->r_addend,
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		     reloc->r_addend, 1);
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  return value;
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}
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/* Return the final value of a plt relocation.  */
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static inline Elf64_Addr
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elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc,
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		       Elf64_Addr value)
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{
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  /* Don't add addend here, but in elf_machine_fixup_plt instead.
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     value + reloc->r_addend is the value which should actually be
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     stored into .plt data slot.  */
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  return value;
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}
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/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
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   PLT entries should not be allowed to define the value.
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   ELF_RTYPE_CLASS_COPY iff TYPE should not be allowed to resolve to one
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   of the main executable's symbols, as for a COPY reloc.  */
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#define elf_machine_type_class(type) \
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  ((((type) == R_SPARC_JMP_SLOT						      \
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     || ((type) >= R_SPARC_TLS_GD_HI22 && (type) <= R_SPARC_TLS_TPOFF64))     \
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    * ELF_RTYPE_CLASS_PLT)						      \
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   | (((type) == R_SPARC_COPY) * ELF_RTYPE_CLASS_COPY))
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/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.  */
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#define ELF_MACHINE_JMP_SLOT	R_SPARC_JMP_SLOT
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/* The SPARC never uses Elf64_Rel relocations.  */
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#define ELF_MACHINE_NO_REL 1
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#define ELF_MACHINE_NO_RELA 0
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/* Set up the loaded object described by L so its unrelocated PLT
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   entries will jump to the on-demand fixup code in dl-runtime.c.  */
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static inline int
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elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
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{
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  if (l->l_info[DT_JMPREL] && lazy)
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    {
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      extern void _dl_runtime_resolve_0 (void);
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      extern void _dl_runtime_resolve_1 (void);
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      extern void _dl_runtime_profile_0 (void);
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      extern void _dl_runtime_profile_1 (void);
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      Elf64_Addr res0_addr, res1_addr;
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      unsigned int *plt = (void *) D_PTR (l, l_info[DT_PLTGOT]);
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      if (__builtin_expect(profile, 0))
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	{
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	  res0_addr = (Elf64_Addr) &_dl_runtime_profile_0;
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	  res1_addr = (Elf64_Addr) &_dl_runtime_profile_1;
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	  if (GLRO(dl_profile) != NULL
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	      && _dl_name_match_p (GLRO(dl_profile), l))
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	    GL(dl_profile_map) = l;
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	}
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      else
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	{
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	  res0_addr = (Elf64_Addr) &_dl_runtime_resolve_0;
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	  res1_addr = (Elf64_Addr) &_dl_runtime_resolve_1;
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	}
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      /* PLT0 looks like:
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	 sethi	%uhi(_dl_runtime_{resolve,profile}_0), %g4
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	 sethi	%hi(_dl_runtime_{resolve,profile}_0), %g5
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	 or	%g4, %ulo(_dl_runtime_{resolve,profile}_0), %g4
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	 or	%g5, %lo(_dl_runtime_{resolve,profile}_0), %g5
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	 sllx	%g4, 32, %g4
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	 add	%g4, %g5, %g5
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	 jmpl	%g5, %g4
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	  nop
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       */
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      plt[0] = 0x09000000 | (res0_addr >> (64 - 22));
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      plt[1] = 0x0b000000 | ((res0_addr >> 10) & 0x003fffff);
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      plt[2] = 0x88112000 | ((res0_addr >> 32) & 0x3ff);
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      plt[3] = 0x8a116000 | (res0_addr & 0x3ff);
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      plt[4] = 0x89293020;
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      plt[5] = 0x8a010005;
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      plt[6] = 0x89c14000;
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      plt[7] = 0x01000000;
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      /* PLT1 looks like:
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	 sethi	%uhi(_dl_runtime_{resolve,profile}_1), %g4
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	 sethi	%hi(_dl_runtime_{resolve,profile}_1), %g5
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	 or	%g4, %ulo(_dl_runtime_{resolve,profile}_1), %g4
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	 or	%g5, %lo(_dl_runtime_{resolve,profile}_1), %g5
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	 sllx	%g4, 32, %g4
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	 add	%g4, %g5, %g5
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	 jmpl	%g5, %g4
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	  nop
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       */
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      plt[8] = 0x09000000 | (res1_addr >> (64 - 22));
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      plt[9] = 0x0b000000 | ((res1_addr >> 10) & 0x003fffff);
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      plt[10] = 0x88112000 | ((res1_addr >> 32) & 0x3ff);
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      plt[11] = 0x8a116000 | (res1_addr & 0x3ff);
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      plt[12] = 0x89293020;
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      plt[13] = 0x8a010005;
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      plt[14] = 0x89c14000;
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      plt[15] = 0x01000000;
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      /* Now put the magic cookie at the beginning of .PLT2
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	 Entry .PLT3 is unused by this implementation.  */
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      *((struct link_map **)(&plt[16])) = l;
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      if (__builtin_expect (l->l_info[VALIDX(DT_GNU_PRELINKED)] != NULL, 0)
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	  || __builtin_expect (l->l_info [VALIDX (DT_GNU_LIBLISTSZ)] != NULL, 0))
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	{
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	  /* Need to reinitialize .plt to undo prelinking.  */
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	  Elf64_Rela *rela = (Elf64_Rela *) D_PTR (l, l_info[DT_JMPREL]);
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	  Elf64_Rela *relaend
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	    = (Elf64_Rela *) ((char *) rela
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			      + l->l_info[DT_PLTRELSZ]->d_un.d_val);
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	  /* prelink must ensure there are no R_SPARC_NONE relocs left
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	     in .rela.plt.  */
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	  while (rela < relaend)
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	    {
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	      if (__builtin_expect (rela->r_addend, 0) != 0)
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		{
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		  Elf64_Addr slot = ((rela->r_offset + l->l_addr + 0x400
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				      - (Elf64_Addr) plt)
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				     / 0x1400) * 0x1400
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				    + (Elf64_Addr) plt - 0x400;
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		  /* ldx [%o7 + X], %g1  */
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		  unsigned int first_ldx = *(unsigned int *)(slot + 12);
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		  Elf64_Addr ptr = slot + (first_ldx & 0xfff) + 4;
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		  *(Elf64_Addr *) (rela->r_offset + l->l_addr)
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		    = (Elf64_Addr) plt
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		      - (slot + ((rela->r_offset + l->l_addr - ptr) / 8) * 24
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			 + 4);
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		  ++rela;
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		  continue;
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		}
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	      *(unsigned int *) (rela->r_offset + l->l_addr)
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		= 0x03000000 | (rela->r_offset + l->l_addr - (Elf64_Addr) plt);
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	      *(unsigned int *) (rela->r_offset + l->l_addr + 4)
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		= 0x30680000 | ((((Elf64_Addr) plt + 32 - rela->r_offset
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				  - l->l_addr - 4) >> 2) & 0x7ffff);
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	      __asm __volatile ("flush %0" : : "r" (rela->r_offset
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						    + l->l_addr));
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	      __asm __volatile ("flush %0+4" : : "r" (rela->r_offset
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						      + l->l_addr));
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	      ++rela;
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	    }
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	}
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    }
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  return lazy;
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}
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/* The PLT uses Elf64_Rela relocs.  */
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#define elf_machine_relplt elf_machine_rela
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/* Undo the sub %sp, 6*8, %sp; add %sp, STACK_BIAS + 22*8, %o0 below
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   (but w/o STACK_BIAS) to get at the value we want in __libc_stack_end.  */
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#define DL_STACK_END(cookie) \
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  ((void *) (((long) (cookie)) - (22 - 6) * 8))
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/* Initial entry point code for the dynamic linker.
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   The C function `_dl_start' is the real entry point;
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   its return value is the user program's entry point.  */
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#define RTLD_GOT_ADDRESS(pic_reg, reg, symbol)	\
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	"sethi	%gdop_hix22(" #symbol "), " #reg "\n\t" \
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	"xor	" #reg ", %gdop_lox10(" #symbol "), " #reg "\n\t" \
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	"ldx	[" #pic_reg " + " #reg "], " #reg ", %gdop(" #symbol ")\n"
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#define __S1(x)	#x
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#define __S(x)	__S1(x)
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#define RTLD_START __asm__ ( "\n"					\
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"	.text\n"							\
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"	.global	_start\n"						\
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"	.type	_start, @function\n"					\
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"	.align	32\n"							\
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"_start:\n"								\
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"   /* Make room for functions to drop their arguments on the stack.  */\n" \
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"	sub	%sp, 6*8, %sp\n"					\
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"   /* Pass pointer to argument block to _dl_start.  */\n"		\
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"	call	_dl_start\n"						\
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"	 add	 %sp," __S(STACK_BIAS) "+22*8,%o0\n"			\
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"	/* FALLTHRU */\n"						\
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"	.size _start, .-_start\n"					\
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"\n"									\
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"	.global	_dl_start_user\n"					\
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"	.type	_dl_start_user, @function\n"				\
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"_dl_start_user:\n"							\
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"   /* Load the GOT register.  */\n"					\
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"1:	call	11f\n"							\
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"	 sethi	%hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7\n"		\
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"11:	or	%l7, %lo(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7\n"		\
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"	add	%l7, %o7, %l7\n"					\
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"   /* Save the user entry point address in %l0.  */\n"			\
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"	mov	%o0, %l0\n"						\
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"   /* See if we were run as a command with the executable file name as an\n" \
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"      extra leading argument.  If so, we must shift things around since we\n" \
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"      must keep the stack doubleword aligned.  */\n"			\
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	RTLD_GOT_ADDRESS(%l7, %g5, _dl_skip_args)			\
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"	ld	[%g5], %i0\n"						\
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"	brz,pt	%i0, 2f\n"						\
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"	 ldx	[%sp + " __S(STACK_BIAS) " + 22*8], %i5\n"		\
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"	/* Find out how far to shift.  */\n"				\
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"	sub	%i5, %i0, %i5\n"					\
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"	sllx	%i0, 3, %l6\n"						\
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	RTLD_GOT_ADDRESS(%l7, %l4, _dl_argv)				\
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"	stx	%i5, [%sp + " __S(STACK_BIAS) " + 22*8]\n"		\
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"	add	%sp, " __S(STACK_BIAS) " + 23*8, %i1\n"			\
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"	add	%i1, %l6, %i2\n"					\
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"	ldx	[%l4], %l5\n"						\
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"	/* Copy down argv.  */\n"					\
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"12:	ldx	[%i2], %i3\n"						\
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"	add	%i2, 8, %i2\n"						\
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"	stx	%i3, [%i1]\n"						\
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"	brnz,pt	%i3, 12b\n"						\
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"	 add	%i1, 8, %i1\n"						\
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"	sub	%l5, %l6, %l5\n"					\
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"	/* Copy down envp.  */\n"					\
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"13:	ldx	[%i2], %i3\n"						\
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"	add	%i2, 8, %i2\n"						\
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"	stx	%i3, [%i1]\n"						\
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"	brnz,pt	%i3, 13b\n"						\
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"	 add	%i1, 8, %i1\n"						\
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"	/* Copy down auxiliary table.  */\n"				\
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"14:	ldx	[%i2], %i3\n"						\
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"	ldx	[%i2 + 8], %i4\n"					\
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"	add	%i2, 16, %i2\n"						\
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"	stx	%i3, [%i1]\n"						\
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"	stx	%i4, [%i1 + 8]\n"					\
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"	brnz,pt	%i3, 14b\n"						\
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"	 add	%i1, 16, %i1\n"						\
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"	stx	%l5, [%l4]\n"						\
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"  /* %o0 = _dl_loaded, %o1 = argc, %o2 = argv, %o3 = envp.  */\n"	\
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"2:\t"	RTLD_GOT_ADDRESS(%l7, %o0, _rtld_local)				\
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"	sllx	%i5, 3, %o3\n"						\
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"	add	%sp, " __S(STACK_BIAS) " + 23*8, %o2\n"			\
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"	add	%o3, 8, %o3\n"						\
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"	mov	%i5, %o1\n"						\
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"	add	%o2, %o3, %o3\n"					\
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"	call	_dl_init\n"						\
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"	 ldx	[%o0], %o0\n"						\
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"   /* Pass our finalizer function to the user in %g1.  */\n"		\
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       RTLD_GOT_ADDRESS(%l7, %g1, _dl_fini)				\
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"  /* Jump to the user's entry point and deallocate the extra stack we got.  */\n" \
Packit 6c4009
"	jmp	%l0\n"							\
Packit 6c4009
"	 add	%sp, 6*8, %sp\n"					\
Packit 6c4009
"	.size	_dl_start_user, . - _dl_start_user\n"			\
Packit 6c4009
"	.previous\n");
Packit 6c4009
Packit 6c4009
#endif /* dl_machine_h */
Packit 6c4009
Packit 6c4009
#define ARCH_LA_PLTENTER	sparc64_gnu_pltenter
Packit 6c4009
#define ARCH_LA_PLTEXIT		sparc64_gnu_pltexit
Packit 6c4009
Packit 6c4009
#ifdef RESOLVE_MAP
Packit 6c4009
Packit 6c4009
/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
Packit 6c4009
   MAP is the object containing the reloc.  */
Packit 6c4009
Packit 6c4009
auto inline void
Packit 6c4009
__attribute__ ((always_inline))
Packit 6c4009
elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
Packit 6c4009
		  const Elf64_Sym *sym, const struct r_found_version *version,
Packit 6c4009
		  void *const reloc_addr_arg, int skip_ifunc)
Packit 6c4009
{
Packit 6c4009
  Elf64_Addr *const reloc_addr = reloc_addr_arg;
Packit 6c4009
#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
Packit 6c4009
  const Elf64_Sym *const refsym = sym;
Packit 6c4009
#endif
Packit 6c4009
  Elf64_Addr value;
Packit 6c4009
  const unsigned long int r_type = ELF64_R_TYPE_ID (reloc->r_info);
Packit 6c4009
#if !defined RESOLVE_CONFLICT_FIND_MAP
Packit 6c4009
  struct link_map *sym_map = NULL;
Packit 6c4009
#endif
Packit 6c4009
Packit 6c4009
#if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC
Packit 6c4009
  /* This is defined in rtld.c, but nowhere in the static libc.a; make the
Packit 6c4009
     reference weak so static programs can still link.  This declaration
Packit 6c4009
     cannot be done when compiling rtld.c (i.e.  #ifdef RTLD_BOOTSTRAP)
Packit 6c4009
     because rtld.c contains the common defn for _dl_rtld_map, which is
Packit 6c4009
     incompatible with a weak decl in the same file.  */
Packit 6c4009
  weak_extern (_dl_rtld_map);
Packit 6c4009
#endif
Packit 6c4009
Packit 6c4009
  if (__glibc_unlikely (r_type == R_SPARC_NONE))
Packit 6c4009
    return;
Packit 6c4009
Packit 6c4009
  if (__glibc_unlikely (r_type == R_SPARC_SIZE64))
Packit 6c4009
    {
Packit 6c4009
      *reloc_addr = sym->st_size + reloc->r_addend;
Packit 6c4009
      return;
Packit 6c4009
    }
Packit 6c4009
Packit 6c4009
#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC
Packit 6c4009
  if (__glibc_unlikely (r_type == R_SPARC_RELATIVE))
Packit 6c4009
    {
Packit 6c4009
# if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC
Packit 6c4009
      if (map != &_dl_rtld_map) /* Already done in rtld itself. */
Packit 6c4009
# endif
Packit 6c4009
	*reloc_addr += map->l_addr + reloc->r_addend;
Packit 6c4009
      return;
Packit 6c4009
    }
Packit 6c4009
#endif
Packit 6c4009
Packit 6c4009
#ifndef RESOLVE_CONFLICT_FIND_MAP
Packit 6c4009
  if (__builtin_expect (ELF64_ST_BIND (sym->st_info) == STB_LOCAL, 0)
Packit 6c4009
      && sym->st_shndx != SHN_UNDEF)
Packit 6c4009
    {
Packit 6c4009
      sym_map = map;
Packit 6c4009
      value = map->l_addr;
Packit 6c4009
    }
Packit 6c4009
  else
Packit 6c4009
    {
Packit 6c4009
      sym_map = RESOLVE_MAP (&sym, version, r_type);
Packit 6c4009
      value = SYMBOL_ADDRESS (sym_map, sym, true);
Packit 6c4009
    }
Packit 6c4009
#else
Packit 6c4009
  value = 0;
Packit 6c4009
#endif
Packit 6c4009
Packit 6c4009
  value += reloc->r_addend;	/* Assume copy relocs have zero addend.  */
Packit 6c4009
Packit 6c4009
  if (sym != NULL
Packit 6c4009
      && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)
Packit 6c4009
      && __builtin_expect (sym->st_shndx != SHN_UNDEF, 1)
Packit 6c4009
      && __builtin_expect (!skip_ifunc, 1))
Packit 6c4009
    value = ((Elf64_Addr (*) (int)) value) (GLRO(dl_hwcap));
Packit 6c4009
Packit 6c4009
  switch (r_type)
Packit 6c4009
    {
Packit 6c4009
#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
Packit 6c4009
    case R_SPARC_COPY:
Packit 6c4009
      if (sym == NULL)
Packit 6c4009
	/* This can happen in trace mode if an object could not be
Packit 6c4009
	   found.  */
Packit 6c4009
	break;
Packit 6c4009
      if (sym->st_size > refsym->st_size
Packit 6c4009
	  || (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
Packit 6c4009
	{
Packit 6c4009
	  const char *strtab;
Packit 6c4009
Packit 6c4009
	  strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
Packit 6c4009
	  _dl_error_printf ("\
Packit 6c4009
%s: Symbol `%s' has different size in shared object, consider re-linking\n",
Packit 6c4009
			    RTLD_PROGNAME, strtab + refsym->st_name);
Packit 6c4009
	}
Packit 6c4009
      memcpy (reloc_addr_arg, (void *) value,
Packit 6c4009
	      MIN (sym->st_size, refsym->st_size));
Packit 6c4009
      break;
Packit 6c4009
#endif
Packit 6c4009
    case R_SPARC_64:
Packit 6c4009
    case R_SPARC_GLOB_DAT:
Packit 6c4009
      *reloc_addr = value;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_IRELATIVE:
Packit 6c4009
      value = ((Elf64_Addr (*) (int)) value) (GLRO(dl_hwcap));
Packit 6c4009
      *reloc_addr = value;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_JMP_IREL:
Packit 6c4009
      value = ((Elf64_Addr (*) (int)) value) (GLRO(dl_hwcap));
Packit 6c4009
      /* 'high' is always zero, for large PLT entries the linker
Packit 6c4009
	 emits an R_SPARC_IRELATIVE.  */
Packit 6c4009
#ifdef RESOLVE_CONFLICT_FIND_MAP
Packit 6c4009
      sparc64_fixup_plt (NULL, reloc, reloc_addr, value, 0, 0);
Packit 6c4009
#else
Packit 6c4009
      sparc64_fixup_plt (map, reloc, reloc_addr, value, 0, 0);
Packit 6c4009
#endif
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_JMP_SLOT:
Packit 6c4009
#ifdef RESOLVE_CONFLICT_FIND_MAP
Packit 6c4009
      /* R_SPARC_JMP_SLOT conflicts against .plt[32768+]
Packit 6c4009
	 relocs should be turned into R_SPARC_64 relocs
Packit 6c4009
	 in .gnu.conflict section.
Packit 6c4009
	 r_addend non-zero does not mean it is a .plt[32768+]
Packit 6c4009
	 reloc, instead it is the actual address of the function
Packit 6c4009
	 to call.  */
Packit 6c4009
      sparc64_fixup_plt (NULL, reloc, reloc_addr, value, 0, 0);
Packit 6c4009
#else
Packit 6c4009
      sparc64_fixup_plt (map, reloc, reloc_addr, value, reloc->r_addend, 0);
Packit 6c4009
#endif
Packit 6c4009
      break;
Packit 6c4009
#ifndef RESOLVE_CONFLICT_FIND_MAP
Packit 6c4009
    case R_SPARC_TLS_DTPMOD64:
Packit 6c4009
      /* Get the information from the link map returned by the
Packit 6c4009
	 resolv function.  */
Packit 6c4009
      if (sym_map != NULL)
Packit 6c4009
	*reloc_addr = sym_map->l_tls_modid;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_TLS_DTPOFF64:
Packit 6c4009
      /* During relocation all TLS symbols are defined and used.
Packit 6c4009
	 Therefore the offset is already correct.  */
Packit 6c4009
      *reloc_addr = (sym == NULL ? 0 : sym->st_value) + reloc->r_addend;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_TLS_TPOFF64:
Packit 6c4009
      /* The offset is negative, forward from the thread pointer.  */
Packit 6c4009
      /* We know the offset of object the symbol is contained in.
Packit 6c4009
	 It is a negative value which will be added to the
Packit 6c4009
	 thread pointer.  */
Packit 6c4009
      if (sym != NULL)
Packit 6c4009
	{
Packit 6c4009
	  CHECK_STATIC_TLS (map, sym_map);
Packit 6c4009
	  *reloc_addr = sym->st_value - sym_map->l_tls_offset
Packit 6c4009
	    + reloc->r_addend;
Packit 6c4009
	}
Packit 6c4009
      break;
Packit 6c4009
# ifndef RTLD_BOOTSTRAP
Packit 6c4009
    case R_SPARC_TLS_LE_HIX22:
Packit 6c4009
    case R_SPARC_TLS_LE_LOX10:
Packit 6c4009
      if (sym != NULL)
Packit 6c4009
	{
Packit 6c4009
	  CHECK_STATIC_TLS (map, sym_map);
Packit 6c4009
	  value = sym->st_value - sym_map->l_tls_offset
Packit 6c4009
	    + reloc->r_addend;
Packit 6c4009
	  if (r_type == R_SPARC_TLS_LE_HIX22)
Packit 6c4009
	    *(unsigned int *)reloc_addr =
Packit 6c4009
	      ((*(unsigned int *)reloc_addr & 0xffc00000)
Packit 6c4009
	       | (((~value) >> 10) & 0x3fffff));
Packit 6c4009
	  else
Packit 6c4009
	    *(unsigned int *)reloc_addr =
Packit 6c4009
	      ((*(unsigned int *)reloc_addr & 0xffffe000) | (value & 0x3ff)
Packit 6c4009
	       | 0x1c00);
Packit 6c4009
	}
Packit 6c4009
      break;
Packit 6c4009
# endif
Packit 6c4009
#endif
Packit 6c4009
#ifndef RTLD_BOOTSTRAP
Packit 6c4009
    case R_SPARC_8:
Packit 6c4009
      *(char *) reloc_addr = value;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_16:
Packit 6c4009
      *(short *) reloc_addr = value;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_32:
Packit 6c4009
      *(unsigned int *) reloc_addr = value;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_DISP8:
Packit 6c4009
      *(char *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_DISP16:
Packit 6c4009
      *(short *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_DISP32:
Packit 6c4009
      *(unsigned int *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_DISP64:
Packit 6c4009
      *reloc_addr = (value - (Elf64_Addr) reloc_addr);
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_REGISTER:
Packit 6c4009
      *reloc_addr = value;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_WDISP30:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & 0xc0000000) |
Packit 6c4009
	 (((value - (Elf64_Addr) reloc_addr) >> 2) & 0x3fffffff));
Packit 6c4009
      break;
Packit 6c4009
Packit 6c4009
      /* MEDLOW code model relocs */
Packit 6c4009
    case R_SPARC_LO10:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & ~0x3ff) |
Packit 6c4009
	 (value & 0x3ff));
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_HI22:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & 0xffc00000) |
Packit 6c4009
	 ((value >> 10) & 0x3fffff));
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_OLO10:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & ~0x1fff) |
Packit 6c4009
	 (((value & 0x3ff) + ELF64_R_TYPE_DATA (reloc->r_info)) & 0x1fff));
Packit 6c4009
      break;
Packit 6c4009
Packit 6c4009
      /* ABS34 code model reloc */
Packit 6c4009
    case R_SPARC_H34:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & 0xffc00000) |
Packit 6c4009
	 ((value >> 12) & 0x3fffff));
Packit 6c4009
Packit 6c4009
      /* MEDMID code model relocs */
Packit 6c4009
    case R_SPARC_H44:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & 0xffc00000) |
Packit 6c4009
	 ((value >> 22) & 0x3fffff));
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_M44:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & ~0x3ff) |
Packit 6c4009
	 ((value >> 12) & 0x3ff));
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_L44:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & ~0xfff) |
Packit 6c4009
	 (value & 0xfff));
Packit 6c4009
      break;
Packit 6c4009
Packit 6c4009
      /* MEDANY code model relocs */
Packit 6c4009
    case R_SPARC_HH22:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & 0xffc00000) |
Packit 6c4009
	 (value >> 42));
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_HM10:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & ~0x3ff) |
Packit 6c4009
	 ((value >> 32) & 0x3ff));
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_LM22:
Packit 6c4009
      *(unsigned int *) reloc_addr =
Packit 6c4009
	((*(unsigned int *)reloc_addr & 0xffc00000) |
Packit 6c4009
	 ((value >> 10) & 0x003fffff));
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_UA16:
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [0] = value >> 8;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [1] = value;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_UA32:
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [0] = value >> 24;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [1] = value >> 16;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [2] = value >> 8;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [3] = value;
Packit 6c4009
      break;
Packit 6c4009
    case R_SPARC_UA64:
Packit 6c4009
      if (! ((long) reloc_addr_arg & 3))
Packit 6c4009
	{
Packit 6c4009
	  /* Common in .eh_frame */
Packit 6c4009
	  ((unsigned int *) reloc_addr_arg) [0] = value >> 32;
Packit 6c4009
	  ((unsigned int *) reloc_addr_arg) [1] = value;
Packit 6c4009
	  break;
Packit 6c4009
	}
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [0] = value >> 56;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [1] = value >> 48;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [2] = value >> 40;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [3] = value >> 32;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [4] = value >> 24;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [5] = value >> 16;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [6] = value >> 8;
Packit 6c4009
      ((unsigned char *) reloc_addr_arg) [7] = value;
Packit 6c4009
      break;
Packit 6c4009
#endif
Packit 6c4009
#if !defined RTLD_BOOTSTRAP || defined _NDEBUG
Packit 6c4009
    default:
Packit 6c4009
      _dl_reloc_bad_type (map, r_type, 0);
Packit 6c4009
      break;
Packit 6c4009
#endif
Packit 6c4009
    }
Packit 6c4009
}
Packit 6c4009
Packit 6c4009
auto inline void
Packit 6c4009
__attribute__ ((always_inline))
Packit 6c4009
elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
Packit 6c4009
			   void *const reloc_addr_arg)
Packit 6c4009
{
Packit 6c4009
  Elf64_Addr *const reloc_addr = reloc_addr_arg;
Packit 6c4009
  *reloc_addr = l_addr + reloc->r_addend;
Packit 6c4009
}
Packit 6c4009
Packit 6c4009
auto inline void
Packit 6c4009
__attribute__ ((always_inline))
Packit 6c4009
elf_machine_lazy_rel (struct link_map *map,
Packit 6c4009
		      Elf64_Addr l_addr, const Elf64_Rela *reloc,
Packit 6c4009
		      int skip_ifunc)
Packit 6c4009
{
Packit 6c4009
  Elf64_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
Packit 6c4009
  const unsigned int r_type = ELF64_R_TYPE (reloc->r_info);
Packit 6c4009
Packit 6c4009
  if (__glibc_likely (r_type == R_SPARC_JMP_SLOT))
Packit 6c4009
    ;
Packit 6c4009
  else if (r_type == R_SPARC_JMP_IREL
Packit 6c4009
	   || r_type == R_SPARC_IRELATIVE)
Packit 6c4009
    {
Packit 6c4009
      Elf64_Addr value = map->l_addr + reloc->r_addend;
Packit 6c4009
      if (__glibc_likely (!skip_ifunc))
Packit 6c4009
	value = ((Elf64_Addr (*) (int)) value) (GLRO(dl_hwcap));
Packit 6c4009
      if (r_type == R_SPARC_JMP_IREL)
Packit 6c4009
	{
Packit 6c4009
	  /* 'high' is always zero, for large PLT entries the linker
Packit 6c4009
	     emits an R_SPARC_IRELATIVE.  */
Packit 6c4009
	  sparc64_fixup_plt (map, reloc, reloc_addr, value, 0, 1);
Packit 6c4009
	}
Packit 6c4009
      else
Packit 6c4009
	*reloc_addr = value;
Packit 6c4009
    }
Packit 6c4009
  else if (r_type == R_SPARC_NONE)
Packit 6c4009
    ;
Packit 6c4009
  else
Packit 6c4009
    _dl_reloc_bad_type (map, r_type, 1);
Packit 6c4009
}
Packit 6c4009
Packit 6c4009
#endif	/* RESOLVE_MAP */