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-rw-r--r--sysdeps/sh/sh4/dl-machine.h517
1 files changed, 2 insertions, 515 deletions
diff --git a/sysdeps/sh/sh4/dl-machine.h b/sysdeps/sh/sh4/dl-machine.h
index a8de19a719..d0c9115e51 100644
--- a/sysdeps/sh/sh4/dl-machine.h
+++ b/sysdeps/sh/sh4/dl-machine.h
@@ -1,515 +1,2 @@
-/* Machine-dependent ELF dynamic relocation inline functions.  SH-4 version.
-   Copyright (C) 1999, 2000 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 Library General Public License as
-   published by the Free Software Foundation; either version 2 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
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.	*/
-
-#ifndef dl_machine_h
-#define dl_machine_h
-
-/* Only dummy. This doesn't work. */
-
-#define ELF_MACHINE_NAME "SH"
-
-#include <sys/param.h>
-
-#include <assert.h>
-
-/* Return nonzero iff E_MACHINE is compatible with the running host.  */
-static inline int __attribute__ ((unused))
-elf_machine_matches_host (Elf32_Half e_machine)
-{
-  switch (e_machine)
-    {
-    case EM_SH:
-      return 1;
-    default:
-      return 0;
-    }
-}
-
-
-/* Return the link-time address of _DYNAMIC.  Conveniently, this is the
-   first element of the GOT.  This must be inlined in a function which
-   uses global data.  */
-static inline Elf32_Addr __attribute__ ((unused))
-elf_machine_dynamic (void)
-{
-  register Elf32_Addr *got;
-  asm ("mov r12,%0" :"=r" (got));
-  return *got;
-}
-
-
-/* Return the run-time load address of the shared object.  */
-static inline Elf32_Addr __attribute__ ((unused))
-elf_machine_load_address (void)
-{
-  Elf32_Addr addr;
-  asm ("mov.l .L1,r0
-	mov.l .L3,r2
-	add r12,r2
-	mov.l @(r0,r12),r0
-	bra .L2
-	 sub r0,r2
-	.align 2
-	.L1: .long _dl_start@GOT
-	.L3: .long _dl_start@GOTOFF
-	.L2: mov r2,%0"
-       : "=r" (addr) : : "r0", "r1", "r2");
-  return 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)
-{
-  Elf32_Addr *got;
-  extern void _dl_runtime_resolve (Elf32_Word);
-  extern void _dl_runtime_profile (Elf32_Word);
-
-  if (l->l_info[DT_JMPREL] && lazy)
-    {
-      /* The GOT entries for functions in the PLT have not yet been filled
-	 in.  Their initial contents will arrange when called to load an
-	 offset into the .rela.plt section and _GLOBAL_OFFSET_TABLE_[1],
-	 and then jump to _GLOBAL_OFFSET_TABLE[2].  */
-      got = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]);
-      got[1] = (Elf32_Addr) l;	/* Identify this shared object.	 */
-
-      /* 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] = (Elf32_Addr) &_dl_runtime_profile;
-	  /* Say that we really want profiling and the timers are started.  */
-	  _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] = (Elf32_Addr) &_dl_runtime_resolve;
-    }
-  return lazy;
-}
-
-/* This code is used in dl-runtime.c to call the `fixup' function
-   and then redirect to the address it returns.	 */
-
-#define ELF_MACHINE_RUNTIME_FIXUP_ARGS int plt_type
-
-#ifdef SHARED
-#define FUN_ADDR	"\
-	mov.l 1f,r2
-	mova 1f,r0
-        bra 2f
-	 add r0,r2		! Get GOT address in r2
-0:	.align 2
-1:	.long _GLOBAL_OFFSET_TABLE_
-2:	mov.l 3f,r0
-	add r2,r0"
-#define GOTJMP(x)	#x "@GOTOFF"
-#else
-#define FUN_ADDR	"\
-	mov.l 3f,r0"
-#define GOTJMP(x)	#x
-#endif
-
-#define FGR_SAVE	"\
-	sts.l	fpscr, @-r15
-	mov	#8,r3
-	swap.w	r3, r3
-	lds	r3, fpscr
-	fmov.s	fr11, @-r15
-	fmov.s	fr10, @-r15
-	fmov.s	fr9, @-r15
-	fmov.s	fr8, @-r15
-	fmov.s	fr7, @-r15
-	fmov.s	fr6, @-r15
-	fmov.s	fr5, @-r15
-	fmov.s	fr4, @-r15"
-#define FGR_LOAD	"\
-	fmov.s	@r15+, fr4
-	fmov.s	@r15+, fr5
-	fmov.s	@r15+, fr6
-	fmov.s	@r15+, fr7
-	fmov.s	@r15+, fr8
-	fmov.s	@r15+, fr9
-	fmov.s	@r15+, fr10
-	fmov.s	@r15+, fr11
-	lds.l	@r15+, fpscr"
-
-#ifndef PROF
-# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
-	.text
-	.globl _dl_runtime_resolve
-	.type _dl_runtime_resolve, @function
-	.align 5
-_dl_runtime_resolve:
-	mov.l r3,@-r15
-	mov.l r4,@-r15
-	mov.l r5,@-r15
-	mov.l r6,@-r15
-	mov.l r7,@-r15
-	mov.l r12,@-r15
-	movt r3			! Save T flag.
-	mov.l r3,@-r15
-	" FGR_SAVE "
-	sts.l pr,@-r15
-	mov r0,r4		! PLT type
-	mov r2,r5		! link map address
-	" FUN_ADDR "
-	jsr @r0			! Call resolver.
-	 mov r1,r6		! reloc offset
-	lds.l @r15+,pr		! Get register content back.
-	" FGR_LOAD "
-	mov.l @r15+,r3
-	shal r3			! Lode T flag.
-	mov.l @r15+,r12
-	mov.l @r15+,r7
-	mov.l @r15+,r6
-	mov.l @r15+,r5
-	mov.l @r15+,r4
-	jmp @r0			! Jump to function address.
-	 mov.l @r15+,r3
-	.align 2
-3:
-	.long " GOTJMP (fixup) "
-	.size _dl_runtime_resolve, .-_dl_runtime_resolve
-
-	.globl _dl_runtime_profile
-	.type _dl_runtime_profile, @function
-	.align 5
-_dl_runtime_profile:
-	mov.l r3,@-r15
-	mov.l r4,@-r15
-	mov.l r5,@-r15
-	mov.l r6,@-r15
-	mov.l r7,@-r15
-	mov.l r12,@-r15
-	movt r3			! Save T flag.
-	mov.l r3,@-r15
-	" FGR_SAVE "
-	sts.l pr,@-r15
-	mov r0,r4		! PLT type
-	mov r2,r5		! link map address
-	sts pr,r7		! return address
-	" FUN_ADDR "
-	jsr @r0			! Call resolver.
-	 mov r1,r6		! reloc offset
-	lds.l @r15+,pr		! Get register content back.
-	" FGR_LOAD "
-	mov.l @r15+,r3
-	shal r3			! Lode T flag.
-	mov.l @r15+,r12
-	mov.l @r15+,r7
-	mov.l @r15+,r6
-	mov.l @r15+,r5
-	mov.l @r15+,r4
-	jmp @r0			! Jump to function address.
-	 mov.l @r15+,r3
-	.align 2
-3:
-	.long " GOTJMP (profile_fixup) "
-	.size _dl_runtime_profile, .-_dl_runtime_profile
-	.previous
-");
-#else
-# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
-	.text
-	.globl _dl_runtime_resolve
-	.globl _dl_runtime_profile
-	.type _dl_runtime_resolve, @function
-	.type _dl_runtime_profile, @function
-	.align 5
-_dl_runtime_resolve:
-_dl_runtime_profile:
-	mov.l r3,@-r15
-	mov.l r4,@-r15
-	mov.l r5,@-r15
-	mov.l r6,@-r15
-	mov.l r7,@-r15
-	mov.l r12,@-r15
-	movt r3			! Save T flag.
-	mov.l r3,@-r15
-	" FGR_SAVE "
-	sts.l pr,@-r15
-	mov r0,r4		! PLT type
-	mov r2,r5		! link map address
-	sts pr,r7		! return address
-	" FUN_ADDR "
-	jsr @r0			! Call resolver.
-	 mov r1,r6		! reloc offset
-	lds.l @r15+,pr		! Get register content back.
-	" FGR_LOAD "
-	mov.l @r15+,r3
-	shal r3			! Lode T flag.
-	mov.l @r15+,r12
-	mov.l @r15+,r7
-	mov.l @r15+,r6
-	mov.l @r15+,r5
-	mov.l @r15+,r4
-	jmp @r0			! Jump to function address.
-	 mov.l @r15+,r3
-	.align 2
-3:
-	.long " GOTJMP (fixup) "
-	.size _dl_runtime_resolve, .-_dl_runtime_resolve
-	.size _dl_runtime_profile, .-_dl_runtime_profile
-	.previous
-");
-#endif
-
-/* Mask identifying addresses reserved for the user program,
-   where the dynamic linker should not map anything.  */
-#define ELF_MACHINE_USER_ADDRESS_MASK	0x80000000UL
-
-/* Initial entry point code 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\
-.globl _dl_start_user\n\
-_start:\n\
-	mov r15,r4\n\
-	mov.l .L_dl_start,r1\n\
-	mova .L_dl_start,r0\n\
-	add r1,r0\n\
-	jsr @r0\n\
-	 nop\n\
-_dl_start_user:\n\
-	! Save the user entry point address in r8.\n\
-	mov r0,r8\n\
-	! Point r12 at the GOT.\n\
-	mov.l 1f,r12\n\
-	mova 1f,r0\n\
-	bra 2f\n\
-	 add r0,r12\n\
-	.align 2\n\
-1:	.long _GLOBAL_OFFSET_TABLE_\n\
-2:	! Store the highest stack address\n\
-	mov.l .L_stack_end,r0\n\
-	mov.l @(r0,r12),r0\n\
-	mov.l r15,@r0\n\
-	! See if we were run as a command with the executable file\n\
-	! name as an extra leading argument.\n\
-	mov.l .L_dl_skip_args,r0\n\
-	mov.l @(r0,r12),r0\n\
-	mov.l @r0,r0\n\
-	! Get the original argument count.\n\
-	mov.l @r15,r5\n\
-	! Subtract _dl_skip_args from it.\n\
-	sub r0,r5\n\
-	! Adjust the stack pointer to skip _dl_skip_args words.\n\
-	shll2 r0\n\
-	add r0,r15\n\
-	! Store back the modified argument count.\n\
-	mov.l r5,@r15\n\
-	! Compute argv address and envp.\n\
-	mov r15,r6\n\
-	add #4,r6\n\
-	mov r5,r7\n\
-	shll2 r7\n\
-	add r15,r7\n\
-	mov.l .L_dl_loaded,r0\n\
-	mov.l @(r0,r12),r0\n\
-	mov.l @r0,r4\n\
-	! Call _dl_init.\n\
-	mov.l .L_dl_init,r1\n\
-	mova .L_dl_init,r0\n\
-	add r1,r0\n\
-	jsr @r0\n\
-	 nop\n\
-1:	! Clear the startup flag.\n\
-	mov.l .L_dl_starting_up,r0\n\
-	mov.l @(r0,r12),r0\n\
-	mov #0,r2\n\
-	mov.l r2,@r0\n\
-	! Pass our finalizer function to the user in r4, as per ELF ABI.\n\
-	mov.l .L_dl_fini,r0\n\
-	mov.l @(r0,r12),r4\n\
-	! Jump to the user's entry point.\n\
-	jmp @r8\n\
-	 nop\n\
-	.align 2\n\
-.L_dl_start:\n\
-	.long _dl_start@PLT\n\
-.L_stack_end:\n\
-	.long __libc_stack_end@GOT\n\
-.L_dl_skip_args:\n\
-	.long _dl_skip_args@GOT\n\
-.L_dl_init:\n\
-	.long _dl_init@PLT\n\
-.L_dl_loaded:\n\
-	.long _dl_loaded@GOT\n\
-.L_dl_starting_up:\n\
-	.long _dl_starting_up@GOT\n\
-.L_dl_fini:\n\
-	.long _dl_fini@GOT\n\
-.previous\n\
-");
-
-/* Nonzero iff TYPE should not be allowed to resolve to one of
-   the main executable's symbols, as for a COPY reloc.	*/
-#define elf_machine_lookup_noexec_p(type) ((type) == R_SH_COPY)
-
-/* Nonzero iff TYPE describes relocation of a PLT entry, so
-   PLT entries should not be allowed to define the value.  */
-#define elf_machine_lookup_noplt_p(type) ((type) == R_SH_JMP_SLOT)
-
-/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.  */
-#define ELF_MACHINE_JMP_SLOT	R_SH_JMP_SLOT
-
-/* We define an initialization functions.  This is called very early in
-   _dl_sysdep_start.  */
-#define DL_PLATFORM_INIT dl_platform_init ()
-
-extern const char *_dl_platform;
-
-static inline void __attribute__ ((unused))
-dl_platform_init (void)
-{
-  if (_dl_platform != NULL && *_dl_platform == '\0')
-    /* Avoid an empty string which would disturb us.  */
-    _dl_platform = NULL;
-}
-
-static inline Elf32_Addr
-elf_machine_fixup_plt (struct link_map *map, lookup_t t,
-		       const Elf32_Rela *reloc,
-		       Elf32_Addr *reloc_addr, Elf32_Addr value)
-{
-  return *reloc_addr = value;
-}
-
-/* Return the final value of a plt relocation.	*/
-static inline Elf32_Addr
-elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
-		       Elf32_Addr value)
-{
-  return value + reloc->r_addend;
-}
-
-#endif /* !dl_machine_h */
-
-#ifdef RESOLVE
-
-/* SH never uses Elf32_Rel relocations.	 */
-#define ELF_MACHINE_NO_REL 1
-
-extern char **_dl_argv;
-
-/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
-   MAP is the object containing the reloc.  */
-
-static inline void
-elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
-		 const Elf32_Sym *sym, const struct r_found_version *version,
-		 Elf32_Addr *const reloc_addr)
-{
-  if (ELF32_R_TYPE (reloc->r_info) == R_SH_RELATIVE)
-    {
-#ifndef RTLD_BOOTSTRAP
-      if (map != &_dl_rtld_map) /* Already done in rtld itself.	 */
-#endif
-	*reloc_addr = map->l_addr + reloc->r_addend;
-    }
-  else if (ELF32_R_TYPE (reloc->r_info) != R_SH_NONE)
-    {
-      const Elf32_Sym *const refsym = sym;
-      Elf32_Addr value = RESOLVE (&sym, version, ELF32_R_TYPE (reloc->r_info));
-      if (sym)
-	value += sym->st_value;
-      value += reloc->r_addend;
-
-      switch (ELF32_R_TYPE (reloc->r_info))
-	{
-	case R_SH_COPY:
-	  if (sym == NULL)
-	    /* This can happen in trace mode if an object could not be
-	       found.  */
-	    break;
-	  if (sym->st_size > refsym->st_size
-	      || (sym->st_size < refsym->st_size && _dl_verbose))
-	    {
-	      const char *strtab;
-
-	      strtab = (const char *) D_PTR (map, l_info[DT_STRTAB]);
-	      _dl_sysdep_error (_dl_argv[0] ?: "<program name unknown>",
-				": Symbol `", strtab + refsym->st_name,
-				"' has different size in shared object, "
-				"consider re-linking\n", NULL);
-	    }
-	  memcpy (reloc_addr, (void *) value, MIN (sym->st_size,
-						   refsym->st_size));
-	  break;
-	case R_SH_GLOB_DAT:
-	case R_SH_JMP_SLOT:
-	  *reloc_addr = value;
-	  break;
-	case R_SH_DIR32:
-	  {
-#ifndef RTLD_BOOTSTRAP
-	   /* This is defined in rtld.c, but nowhere in the static
-	      libc.a; make the reference weak so static programs can
-	      still link.  This declaration cannot be done when
-	      compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP) because
-	      rtld.c contains the common defn for _dl_rtld_map, which
-	      is incompatible with a weak decl in the same file.  */
-	    weak_extern (_dl_rtld_map);
-	    if (map == &_dl_rtld_map)
-	      /* Undo the relocation done here during bootstrapping.
-		 Now we will relocate it anew, possibly using a
-		 binding found in the user program or a loaded library
-		 rather than the dynamic linker's built-in definitions
-		 used while loading those libraries.  */
-	      value -= map->l_addr + refsym->st_value + reloc->r_addend;
-#endif
-	    *reloc_addr = value;
-	    break;
-	  }
-	case R_SH_REL32:
-	  *reloc_addr = (value - (Elf32_Addr) reloc_addr);
-	  break;
-	default:
-	  _dl_reloc_bad_type (map, ELF32_R_TYPE (reloc->r_info), 0);
-	  break;
-	}
-    }
-}
-
-static inline void
-elf_machine_lazy_rel (struct link_map *map,
-		      Elf32_Addr l_addr, const Elf32_Rela *reloc)
-{
-  Elf32_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
-  /* Check for unexpected PLT reloc type.  */
-  if (ELF32_R_TYPE (reloc->r_info) == R_SH_JMP_SLOT)
-    *reloc_addr += l_addr;
-  else
-    _dl_reloc_bad_type (map, ELF32_R_TYPE (reloc->r_info), 1);
-}
-
-#endif /* RESOLVE */
+#define KERNEL_MATH_EMULATION
+#include <sysdeps/sh/dl-machine.h>