1 files changed, 0 insertions, 401 deletions

diff --git a/ports/sysdeps/aarch64/dl-machine.h b/ports/sysdeps/aarch64/dl-machine.h
deleted file mode 100644
index 997c860ccb..0000000000
--- a/ports/sysdeps/aarch64/dl-machine.h
+++ /dev/null
@@ -1,401 +0,0 @@
-/* Copyright (C) 1995-2014 Free Software Foundation, Inc.
-
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef dl_machine_h
-#define dl_machine_h
-
-#define ELF_MACHINE_NAME "aarch64"
-
-#include <tls.h>
-#include <dl-tlsdesc.h>
-#include <dl-irel.h>
-
-/* Return nonzero iff ELF header is compatible with the running host.  */
-static inline int __attribute__ ((unused))
-elf_machine_matches_host (const ElfW(Ehdr) *ehdr)
-{
-  return ehdr->e_machine == EM_AARCH64;
-}
-
-/* Return the link-time address of _DYNAMIC.  Conveniently, this is the
-   first element of the GOT. */
-static inline ElfW(Addr) __attribute__ ((unused))
-elf_machine_dynamic (void)
-{
-  extern const ElfW(Addr) _GLOBAL_OFFSET_TABLE_[] attribute_hidden;
-  return _GLOBAL_OFFSET_TABLE_[0];
-}
-
-/* Return the run-time load address of the shared object.  */
-
-static inline ElfW(Addr) __attribute__ ((unused))
-elf_machine_load_address (void)
-{
-  /* To figure out the load address we use the definition that for any symbol:
-     dynamic_addr(symbol) = static_addr(symbol) + load_addr
-
-     The choice of symbol is arbitrary. The static address we obtain
-     by constructing a non GOT reference to the symbol, the dynamic
-     address of the symbol we compute using adrp/add to compute the
-     symbol's address relative to the PC. */
-
-  ElfW(Addr) static_addr;
-  ElfW(Addr) dynamic_addr;
-
-  asm ("					\n\
-	adrp	%1, _dl_start;			\n\
-        add	%1, %1, #:lo12:_dl_start        \n\
-        ldr	%w0, 1f				\n\
-	b	2f				\n\
-1:	.word	_dl_start			\n\
-2:						\n\
-       " : "=r" (static_addr),  "=r" (dynamic_addr));
-  return dynamic_addr - static_addr;
-}
-
-/* Set up the loaded object described by L so its unrelocated PLT
-   entries will jump to the on-demand fixup code in dl-runtime.c.  */
-
-static inline int __attribute__ ((unused))
-elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
-{
-  if (l->l_info[DT_JMPREL] && lazy)
-    {
-      ElfW(Addr) *got;
-      extern void _dl_runtime_resolve (ElfW(Word));
-      extern void _dl_runtime_profile (ElfW(Word));
-
-      got = (ElfW(Addr) *) D_PTR (l, l_info[DT_PLTGOT]);
-      if (got[1])
-	{
-	  l->l_mach.plt = got[1] + l->l_addr;
-	}
-      got[1] = (ElfW(Addr)) l;
-
-      /* The got[2] entry contains the address of a function which gets
-	 called to get the address of a so far unresolved function and
-	 jump to it.  The profiling extension of the dynamic linker allows
-	 to intercept the calls to collect information.  In this case we
-	 don't store the address in the GOT so that all future calls also
-	 end in this function.  */
-      if ( profile)
-	{
-	   got[2] = (ElfW(Addr)) &_dl_runtime_profile;
-
-	  if (GLRO(dl_profile) != NULL
-	      && _dl_name_match_p (GLRO(dl_profile), l))
-	    /* Say that we really want profiling and the timers are
-	       started.  */
-	    GL(dl_profile_map) = l;
-	}
-      else
-	{
-	  /* This function will get called to fix up the GOT entry
-	     indicated by the offset on the stack, and then jump to
-	     the resolved address.  */
-	  got[2] = (ElfW(Addr)) &_dl_runtime_resolve;
-	}
-    }
-
-  if (l->l_info[ADDRIDX (DT_TLSDESC_GOT)] && lazy)
-    *(Elf64_Addr*)(D_PTR (l, l_info[ADDRIDX (DT_TLSDESC_GOT)]) + l->l_addr)
-      = (Elf64_Addr) &_dl_tlsdesc_resolve_rela;
-
-  return lazy;
-}
-
-/* Initial entry point for the dynamic linker. The C function
-   _dl_start is the real entry point, its return value is the user
-   program's entry point */
-
-#define RTLD_START asm ("\
-.text								\n\
-.globl _start							\n\
-.type _start, %function						\n\
-.globl _dl_start_user						\n\
-.type _dl_start_user, %function					\n\
-_start:								\n\
-	mov	x0,	sp					\n\
-	bl	_dl_start					\n\
-	// returns user entry point in x0			\n\
-	mov	x21, x0						\n\
-_dl_start_user:							\n\
-	// get the original arg count				\n\
-	ldr	x1, [sp]					\n\
-	// get the argv address					\n\
-	add	x2, sp, #8					\n\
-	// get _dl_skip_args to see if we were			\n\
-	// invoked as an executable				\n\
-	adrp	x4, _dl_skip_args				\n\
-        ldr	w4, [x4, #:lo12:_dl_skip_args]			\n\
-	// do we need to adjust argc/argv			\n\
-        cmp	w4, 0						\n\
-	beq	.L_done_stack_adjust				\n\
-	// subtract _dl_skip_args from original arg count	\n\
-	sub	x1, x1, x4					\n\
-	// store adjusted argc back to stack			\n\
-	str	x1, [sp]					\n\
-	// find the first unskipped argument			\n\
-	mov	x3, x2						\n\
-	add	x4, x2, x4, lsl #3				\n\
-	// shuffle argv down					\n\
-1:	ldr	x5, [x4], #8					\n\
-	str	x5, [x3], #8					\n\
-	cmp	x5, #0						\n\
-	bne	1b						\n\
-	// shuffle envp down					\n\
-1:	ldr	x5, [x4], #8					\n\
-	str	x5, [x3], #8					\n\
-	cmp	x5, #0						\n\
-	bne	1b						\n\
-	// shuffle auxv down					\n\
-1:	ldp	x0, x5, [x4, #16]!				\n\
-	stp	x0, x5, [x3], #16				\n\
-	cmp	x0, #0						\n\
-	bne	1b						\n\
-	// Update _dl_argv					\n\
-	adrp	x3, _dl_argv					\n\
-	str	x2, [x3, #:lo12:_dl_argv]			\n\
-.L_done_stack_adjust:						\n\
-	// compute envp						\n\
-	add	x3, x2, x1, lsl #3				\n\
-	add	x3, x3, #8					\n\
-	adrp	x16, _rtld_local				\n\
-        add	x16, x16, #:lo12:_rtld_local			\n\
-        ldr	x0, [x16]					\n\
-	bl	_dl_init_internal				\n\
-	// load the finalizer function				\n\
-	adrp	x0, _dl_fini					\n\
-	add	x0, x0, #:lo12:_dl_fini				\n\
-	// jump to the user_s entry point			\n\
-	br      x21						\n\
-");
-
-#define elf_machine_type_class(type)					\
-  ((((type) == R_AARCH64_JUMP_SLOT ||					\
-     (type) == R_AARCH64_TLS_DTPMOD64 ||				\
-     (type) == R_AARCH64_TLS_DTPREL64 ||				\
-     (type) == R_AARCH64_TLS_TPREL64 ||					\
-     (type) == R_AARCH64_TLSDESC) * ELF_RTYPE_CLASS_PLT)		\
-   | (((type) == R_AARCH64_COPY) * ELF_RTYPE_CLASS_COPY))
-
-#define ELF_MACHINE_JMP_SLOT	R_AARCH64_JUMP_SLOT
-
-/* AArch64 uses RELA not REL */
-#define ELF_MACHINE_NO_REL 1
-
-static inline ElfW(Addr)
-elf_machine_fixup_plt (struct link_map *map, lookup_t t,
-		       const ElfW(Rela) *reloc,
-		       ElfW(Addr) *reloc_addr,
-		       ElfW(Addr) value)
-{
-  return *reloc_addr = value;
-}
-
-/* Return the final value of a plt relocation.  */
-static inline ElfW(Addr)
-elf_machine_plt_value (struct link_map *map,
-		       const ElfW(Rela) *reloc,
-		       ElfW(Addr) value)
-{
-  return value;
-}
-
-#endif
-
-/* Names of the architecture-specific auditing callback functions.  */
-#define ARCH_LA_PLTENTER aarch64_gnu_pltenter
-#define ARCH_LA_PLTEXIT  aarch64_gnu_pltexit
-
-#ifdef RESOLVE_MAP
-
-auto inline void
-__attribute__ ((always_inline))
-elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
-		  const ElfW(Sym) *sym, const struct r_found_version *version,
-		  void *const reloc_addr_arg, int skip_ifunc)
-{
-  ElfW(Addr) *const reloc_addr = reloc_addr_arg;
-  const unsigned int r_type = ELF64_R_TYPE (reloc->r_info);
-
-  if (__builtin_expect (r_type == R_AARCH64_RELATIVE, 0))
-      *reloc_addr = map->l_addr + reloc->r_addend;
-  else if (__builtin_expect (r_type == R_AARCH64_NONE, 0))
-      return;
-  else
-    {
-      const ElfW(Sym) *const refsym = sym;
-      struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
-      ElfW(Addr) value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
-
-      if (sym != NULL
-	  && __glibc_unlikely (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC)
-	  && __glibc_likely (sym->st_shndx != SHN_UNDEF)
-	  && __glibc_likely (!skip_ifunc))
-	value = elf_ifunc_invoke (value);
-
-      switch (r_type)
-	{
-	case R_AARCH64_COPY:
-	  if (sym == NULL)
-	      break;
-
-	  if (sym->st_size > refsym->st_size
-	      || (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
-	    {
-	      const char *strtab;
-
-	      strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
-	      _dl_error_printf ("\
-%s: Symbol `%s' has different size in shared object, consider re-linking\n",
-				RTLD_PROGNAME, strtab + refsym->st_name);
-	    }
-	  memcpy (reloc_addr_arg, (void *) value,
-		  MIN (sym->st_size, refsym->st_size));
-	  break;
-
-	case R_AARCH64_RELATIVE:
-	case R_AARCH64_GLOB_DAT:
-	case R_AARCH64_JUMP_SLOT:
-	case R_AARCH64_ABS32:
-	case R_AARCH64_ABS64:
-	  *reloc_addr = value + reloc->r_addend;
-	  break;
-
-	case R_AARCH64_TLSDESC:
-	  {
-	    struct tlsdesc volatile *td =
-	      (struct tlsdesc volatile *)reloc_addr;
-#ifndef RTLD_BOOTSTRAP
-	    if (! sym)
-	      {
-		td->arg = (void*)reloc->r_addend;
-		td->entry = _dl_tlsdesc_undefweak;
-	      }
-	    else
-#endif
-	      {
-#ifndef RTLD_BOOTSTRAP
-# ifndef SHARED
-		CHECK_STATIC_TLS (map, sym_map);
-# else
-		if (!TRY_STATIC_TLS (map, sym_map))
-		  {
-		    td->arg = _dl_make_tlsdesc_dynamic
-		      (sym_map, sym->st_value + reloc->r_addend);
-		    td->entry = _dl_tlsdesc_dynamic;
-		  }
-		else
-# endif
-#endif
-		  {
-		    td->arg = (void*)(sym->st_value + sym_map->l_tls_offset
-				      + reloc->r_addend);
-		    td->entry = _dl_tlsdesc_return;
-		  }
-	      }
-	    break;
-	  }
-
-	case R_AARCH64_TLS_DTPMOD64:
-#ifdef RTLD_BOOTSTRAP
-	  *reloc_addr = 1;
-#else
-	  if (sym_map != NULL)
-	    {
-	      *reloc_addr = sym_map->l_tls_modid;
-	    }
-#endif
-	  break;
-
-	case R_AARCH64_TLS_DTPREL64:
-	  if (sym)
-	    *reloc_addr = sym->st_value + reloc->r_addend;
-	  break;
-
-	case R_AARCH64_TLS_TPREL64:
-	  if (sym)
-	    {
-	      CHECK_STATIC_TLS (map, sym_map);
-	      *reloc_addr =
-		sym->st_value + reloc->r_addend + sym_map->l_tls_offset;
-	    }
-	  break;
-
-	case R_AARCH64_IRELATIVE:
-	  value = map->l_addr + reloc->r_addend;
-	  value = elf_ifunc_invoke (value);
-	  *reloc_addr = value;
-	  break;
-
-	default:
-	  _dl_reloc_bad_type (map, r_type, 0);
-	  break;
-	}
-    }
-}
-
-inline void
-__attribute__ ((always_inline))
-elf_machine_rela_relative (ElfW(Addr) l_addr,
-			   const ElfW(Rela) *reloc,
-			   void *const reloc_addr_arg)
-{
-  ElfW(Addr) *const reloc_addr = reloc_addr_arg;
-  *reloc_addr = l_addr + reloc->r_addend;
-}
-
-inline void
-__attribute__ ((always_inline))
-elf_machine_lazy_rel (struct link_map *map,
-		      ElfW(Addr) l_addr,
-		      const ElfW(Rela) *reloc,
-		      int skip_ifunc)
-{
-  ElfW(Addr) *const reloc_addr = (void *) (l_addr + reloc->r_offset);
-  const unsigned int r_type = ELF64_R_TYPE (reloc->r_info);
-  /* Check for unexpected PLT reloc type.  */
-  if (__builtin_expect (r_type == R_AARCH64_JUMP_SLOT, 1))
-    {
-      if (__builtin_expect (map->l_mach.plt, 0) == 0)
-	*reloc_addr += l_addr;
-      else
-	*reloc_addr = map->l_mach.plt;
-    }
-  else if (__builtin_expect (r_type == R_AARCH64_TLSDESC, 1))
-    {
-      struct tlsdesc volatile *td =
-	(struct tlsdesc volatile *)reloc_addr;
-
-      td->arg = (void*)reloc;
-      td->entry = (void*)(D_PTR (map, l_info[ADDRIDX (DT_TLSDESC_PLT)])
-			  + map->l_addr);
-    }
-  else if (__glibc_unlikely (r_type == R_AARCH64_IRELATIVE))
-    {
-      ElfW(Addr) value = map->l_addr + reloc->r_addend;
-      if (__glibc_likely (!skip_ifunc))
-	value = elf_ifunc_invoke (value);
-      *reloc_addr = value;
-    }
-  else
-    _dl_reloc_bad_type (map, r_type, 1);
-}
-
-#endif