(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 762 insertions, 0 deletions

diff --git a/sysdeps/hppa/dl-machine.h b/sysdeps/hppa/dl-machine.h
new file mode 100644
index 0000000000..d29501d306
--- /dev/null
+++ b/sysdeps/hppa/dl-machine.h
@@ -0,0 +1,762 @@
+/* Machine-dependent ELF dynamic relocation inline functions.  PA-RISC version.
+   Copyright (C) 1995-1997,1999-2003
+	Free Software Foundation, Inc.
+   Contributed by David Huggins-Daines <dhd@debian.org>
+   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, 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 1
+
+#define ELF_MACHINE_NAME "hppa"
+
+#include <sys/param.h>
+#include <assert.h>
+#include <string.h>
+#include <link.h>
+#include <errno.h>
+#include <dl-fptr.h>
+#include <abort-instr.h>
+
+# define VALID_ELF_OSABI(osabi)		((osabi == ELFOSABI_SYSV) || (osabi == ELFOSABI_LINUX))
+# define VALID_ELF_ABIVERSION(ver)	(ver == 0)
+# define VALID_ELF_HEADER(hdr,exp,size) \
+  memcmp (hdr,exp,size-2) == 0 \
+  && VALID_ELF_OSABI (hdr[EI_OSABI]) \
+  && VALID_ELF_ABIVERSION (hdr[EI_ABIVERSION])
+
+/* These two definitions must match the definition of the stub in 
+   bfd/elf32-hppa.c (see plt_stub[]).
+   
+   a. Define the size of the *entire* stub we place at the end of the PLT
+   table (right up against the GOT).
+   
+   b. Define the number of bytes back from the GOT to the entry point of
+   the PLT stub. You see the PLT stub must be entered in the middle
+   so it can depwi to find it's own address (long jump stub) 
+   
+   c. Define the size of a single PLT entry so we can jump over the
+   last entry to get the stub address */
+	
+#define SIZEOF_PLT_STUB (7*4)
+#define GOT_FROM_PLT_STUB (4*4)
+#define PLT_ENTRY_SIZE (2*4)
+
+/* Initialize the function descriptor table before relocations */
+static inline void
+__hppa_init_bootstrap_fdesc_table (struct link_map *map)
+{
+  ElfW(Addr) *boot_table;
+
+  /* Careful: this will be called before got has been relocated... */
+  ELF_MACHINE_LOAD_ADDRESS(boot_table,_dl_boot_fptr_table);
+
+  map->l_mach.fptr_table_len = ELF_MACHINE_BOOT_FPTR_TABLE_LEN;
+  map->l_mach.fptr_table = boot_table;
+}
+
+#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info)		\
+	__hppa_init_bootstrap_fdesc_table (&bootstrap_map);
+
+/* Return nonzero iff ELF header is compatible with the running host.  */
+static inline int
+elf_machine_matches_host (const Elf32_Ehdr *ehdr)
+{
+  return ehdr->e_machine == EM_PARISC;
+}
+
+/* Return the link-time address of _DYNAMIC.  */
+static inline Elf32_Addr
+elf_machine_dynamic (void) __attribute__ ((const));
+
+static inline Elf32_Addr
+elf_machine_dynamic (void)
+{
+  Elf32_Addr dynamic;
+
+  asm ("b,l	1f,%0\n"
+"	depi	0,31,2,%0\n"
+"1:	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 8),%0\n"
+"	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
+       : "=r" (dynamic) : : "r1");
+
+  return dynamic;
+}
+
+/* Return the run-time load address of the shared object.  */
+static inline Elf32_Addr
+elf_machine_load_address (void) __attribute__ ((const));
+
+static inline Elf32_Addr
+elf_machine_load_address (void)
+{
+  Elf32_Addr dynamic;
+
+  asm (
+"	b,l	1f,%0\n"
+"	depi	0,31,2,%0\n"
+"1:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%0\n"
+"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
+   : "=r" (dynamic) : : "r1");
+
+  return dynamic - elf_machine_dynamic ();
+}
+
+/* Fixup a PLT entry to bounce directly to the function at VALUE.  
+   Optimized non-profile version. */
+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)
+{
+  /* map is the link_map for the caller, t is the link_map for the object
+     being called */
+  reloc_addr[1] = D_PTR (t, l_info[DT_PLTGOT]);
+  reloc_addr[0] = value;
+  /* Return the PLT slot rather than the function value so that the
+     trampoline can load the new LTP. */
+  return (Elf32_Addr) reloc_addr;
+}
+
+/* Fixup a PLT entry to bounce directly to the function at VALUE.  */
+#define ELF_MACHINE_PROFILE_FIXUP_PLT elf_machine_profile_fixup_plt
+static inline Elf32_Addr
+elf_machine_profile_fixup_plt (struct link_map *map, lookup_t t,
+		       const Elf32_Rela *reloc,
+		       Elf32_Addr *reloc_addr, Elf32_Addr value)
+{
+  if(__builtin_expect (t == NULL, 1)) 
+    return (Elf32_Addr) reloc_addr;
+  /* Return the PLT slot rather than the function value so that the
+     trampoline can load the new LTP. */
+  return (Elf32_Addr) elf_machine_fixup_plt(map, t, reloc, 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)
+{
+  /* We are rela only */
+  return value + reloc->r_addend;
+}
+
+/* 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
+elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
+{
+  Elf32_Addr *got = NULL;
+  Elf32_Addr l_addr, iplt, jmprel, end_jmprel, r_type, r_sym;
+  const Elf32_Rela *reloc;
+  struct fdesc *fptr;
+  static union {
+    unsigned char c[8];
+    Elf32_Addr i[2];
+  } sig = {{0x00,0xc0,0xff,0xee, 0xde,0xad,0xbe,0xef}};
+		
+  /* If we don't have a PLT we can just skip all this... */
+  if (__builtin_expect (l->l_info[DT_JMPREL] == NULL,0))
+    return lazy;
+  
+  /* All paths use these values */ 
+  l_addr = l->l_addr;
+  jmprel = D_PTR(l, l_info[DT_JMPREL]);
+  end_jmprel = jmprel + l->l_info[DT_PLTRELSZ]->d_un.d_val;
+  
+  extern void _dl_runtime_resolve (void);
+  extern void _dl_runtime_profile (void);
+  
+  /* Linking lazily */
+  if (lazy)
+    {
+      /* FIXME: Search for the got, but backwards through the relocs, technically we should
+         find it on the first try. However, assuming the relocs got out of order the 
+         routine is made a bit more robust by searching them all in case of failure. */
+      for (iplt = (end_jmprel - sizeof(Elf32_Rela)); iplt >= jmprel; iplt -= sizeof (Elf32_Rela))
+        {
+	      
+	  reloc = (const Elf32_Rela *) iplt;
+          r_type = ELF32_R_TYPE (reloc->r_info);
+          r_sym = ELF32_R_SYM (reloc->r_info);
+
+          got = (Elf32_Addr *) (reloc->r_offset + l_addr + PLT_ENTRY_SIZE + SIZEOF_PLT_STUB);
+
+          /* If we aren't an IPLT, and we aren't NONE then it's a bad reloc */
+          if (__builtin_expect (r_type != R_PARISC_IPLT, 0))
+	    {
+	      if (__builtin_expect (r_type != R_PARISC_NONE, 0))
+	        _dl_reloc_bad_type (l, r_type, 1);
+	      continue;
+	    }
+	
+          /* Check for the plt_stub that binutils placed here for us 
+             to use with _dl_runtime_resolve  */
+          if (got[-2] != sig.i[0] || got[-1] != sig.i[1])
+            {
+              got = NULL; /* Not the stub... keep looking */
+            } 
+          else 
+	    {
+              /* Found the GOT! */       	
+              register Elf32_Addr ltp __asm__ ("%r19");
+              /* Identify this shared object. */
+              got[1] = (Elf32_Addr) l;
+
+              /* This function will be called to perform the relocation. */
+              if (__builtin_expect (!profile, 1))
+                {
+                  /* If a static application called us, then _dl_runtime_resolve is not
+		     a function descriptor, but the *real* address of the function... */
+		  if((unsigned long) &_dl_runtime_resolve & 3)
+		    {
+                      got[-2] = (Elf32_Addr) ((struct fdesc *) 
+                                  ((unsigned long) &_dl_runtime_resolve & ~3))->ip;
+		    }
+		  else
+		    {
+		      /* Static executable! */
+                      got[-2] = (Elf32_Addr) &_dl_runtime_resolve;
+		    }
+                }
+              else
+	        {
+	          if (_dl_name_match_p (GLRO(dl_profile), l))
+	            {
+		      /* This is the object we are looking for.  Say that
+		         we really want profiling and the timers are
+		         started.  */
+                      GL(dl_profile_map) = l;
+                    }
+
+		  if((unsigned long) &_dl_runtime_resolve & 3)
+		    {
+                      got[-2] = (Elf32_Addr) ((struct fdesc *)
+                                  ((unsigned long) &_dl_runtime_profile & ~3))->ip;
+		    }
+		  else
+		    {
+		      /* Static executable */
+                      got[-2] = (Elf32_Addr) &_dl_runtime_profile;
+		    }
+                }
+              /* Plunk in the gp of this function descriptor so we 
+	         can make the call to _dl_runtime_xxxxxx */
+              got[-1] = ltp;
+              break;
+              /* Done looking for the GOT, and stub is setup */
+            } /* else we found the GOT */
+        } /* for, walk the relocs backwards */
+
+      if(!got) 
+        return 0; /* No lazy linking for you! */
+  
+      /* Process all the relocs, now that we know the GOT... */    
+      for (iplt = jmprel; iplt < end_jmprel; iplt += sizeof (Elf32_Rela))
+	{
+	  reloc = (const Elf32_Rela *) iplt;
+	  r_type = ELF32_R_TYPE (reloc->r_info);
+	  r_sym = ELF32_R_SYM (reloc->r_info);
+
+	  if (__builtin_expect (r_type == R_PARISC_IPLT, 1))
+	    {
+	      fptr = (struct fdesc *) (reloc->r_offset + l_addr);
+	      if (r_sym != 0)
+		{
+		  /* Relocate the pointer to the stub.  */
+		  fptr->ip = (Elf32_Addr) got - GOT_FROM_PLT_STUB;
+
+		  /* Instead of the LTP value, we put the reloc offset
+		     here.  The trampoline code will load the proper
+		     LTP and pass the reloc offset to the fixup
+		     function.  */
+		  fptr->gp = iplt - jmprel;
+		} /* r_sym != 0 */
+	      else
+		{
+		  /* Relocate this *ABS* entry.  */
+		  fptr->ip = reloc->r_addend + l_addr;
+		  fptr->gp = D_PTR (l, l_info[DT_PLTGOT]);
+		}
+	    } /* r_type == R_PARISC_IPLT */
+	} /* for all the relocations */ 
+    } /* if lazy */
+  else
+    {
+      for (iplt = jmprel; iplt < end_jmprel; iplt += sizeof (Elf32_Rela))
+        {
+          reloc = (const Elf32_Rela *) iplt;
+          r_type = ELF32_R_TYPE (reloc->r_info);
+          r_sym = ELF32_R_SYM (reloc->r_info);
+
+          if (__builtin_expect ((r_type == R_PARISC_IPLT) && (r_sym == 0), 1))
+            {
+              fptr = (struct fdesc *) (reloc->r_offset + l_addr);
+              /* Relocate this *ABS* entry, set only the gp, the rest is set later
+                 when elf_machine_rela_relative is called (WITHOUT the linkmap)  */
+              fptr->gp = D_PTR (l, l_info[DT_PLTGOT]);
+            } /* r_type == R_PARISC_IPLT */
+        } /* for all the relocations */ 
+    }	  
+  return lazy;
+}
+
+/* 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 \
+/* Set up dp for any non-PIC lib constructors that may be called.  */	\
+static struct link_map * __attribute__((used))				\
+set_dp (struct link_map *map)						\
+{									\
+  register Elf32_Addr dp asm ("%r27");					\
+  dp = D_PTR (map, l_info[DT_PLTGOT]);					\
+  asm volatile ("" : : "r" (dp));					\
+  return map;								\
+}									\
+									\
+asm (									\
+"	.text\n"							\
+"	.globl _start\n"						\
+"	.type _start,@function\n"					\
+"_start:\n"								\
+	/* The kernel does not give us an initial stack frame. */	\
+"	ldo	64(%sp),%sp\n"						\
+	/* Save the relevant arguments (yes, those are the correct	\
+	   registers, the kernel is weird) in their stack slots. */	\
+"	stw	%r25,-40(%sp)\n" /* argc */				\
+"	stw	%r24,-44(%sp)\n" /* argv */				\
+									\
+	/* We need the LTP, and we need it now.				\
+	   $PIC_pcrel$0 points 8 bytes past the current instruction,	\
+	   just like a branch reloc.  This sequence gets us the		\
+	   runtime address of _DYNAMIC. */				\
+"	bl	0f,%r19\n"						\
+"	depi	0,31,2,%r19\n"	/* clear priviledge bits */		\
+"0:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%r19\n"			\
+"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%r1),%r26\n"		\
+									\
+	/* The link time address is stored in the first entry of the	\
+	   GOT.  */							\
+"	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 16),%r19\n"	\
+"	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 20)(%r1),%r20\n" \
+									\
+"	sub	%r26,%r20,%r20\n"	/* Calculate load offset */	\
+									\
+	/* Rummage through the dynamic entries, looking for		\
+	   DT_PLTGOT.  */						\
+"	ldw,ma	8(%r26),%r19\n"						\
+"1:	cmpib,=,n 3,%r19,2f\n"	/* tag == DT_PLTGOT? */			\
+"	cmpib,<>,n 0,%r19,1b\n"						\
+"	ldw,ma	8(%r26),%r19\n"						\
+									\
+	/* Uh oh!  We didn't find one.  Abort. */			\
+"	iitlbp	%r0,(%r0)\n"						\
+									\
+"2:	ldw	-4(%r26),%r19\n"	/* Found it, load value. */	\
+"	add	%r19,%r20,%r19\n"	/* And add the load offset. */	\
+									\
+	/* Our initial stack layout is rather different from everyone	\
+	   else's due to the unique PA-RISC ABI.  As far as I know it	\
+	   looks like this:						\
+									\
+	   -----------------------------------  (this frame created above) \
+	   |         32 bytes of magic       |				\
+	   |---------------------------------|				\
+	   | 32 bytes argument/sp save area  |				\
+	   |---------------------------------|  ((current->mm->env_end)	\
+	   |         N bytes of slack        |	 + 63 & ~63)		\
+	   |---------------------------------|				\
+	   |      envvar and arg strings     |				\
+	   |---------------------------------|				\
+	   |	    ELF auxiliary info	     |				\
+	   |         (up to 28 words)        |				\
+	   |---------------------------------|				\
+	   |  Environment variable pointers  |				\
+	   |         upwards to NULL	     |				\
+	   |---------------------------------|				\
+	   |        Argument pointers        |				\
+	   |         upwards to NULL	     |				\
+	   |---------------------------------|				\
+	   |          argc (1 word)          |				\
+	   -----------------------------------				\
+									\
+	  So, obviously, we can't just pass %sp to _dl_start.  That's	\
+	  okay, argv-4 will do just fine.				\
+									\
+	  The pleasant part of this is that if we need to skip		\
+	  arguments we can just decrement argc and move argv, because	\
+	  the stack pointer is utterly unrelated to the location of	\
+	  the environment and argument vectors. */			\
+									\
+	/* This is always within range so we'll be okay. */		\
+"	bl	_dl_start,%rp\n"					\
+"	ldo	-4(%r24),%r26\n"					\
+									\
+"	.globl _dl_start_user\n"					\
+"	.type _dl_start_user,@function\n"				\
+"_dl_start_user:\n"							\
+	/* Save the entry point in %r3. */				\
+"	copy	%ret0,%r3\n"						\
+									\
+	/* Remember the lowest stack address. */			\
+"	addil	LT'__libc_stack_end,%r19\n"				\
+"	ldw	RT'__libc_stack_end(%r1),%r20\n"			\
+"	stw	%sp,0(%r20)\n"						\
+									\
+	/* See if we were called as a command with the executable file	\
+	   name as an extra leading argument. */			\
+"	addil	LT'_dl_skip_args,%r19\n"				\
+"	ldw	RT'_dl_skip_args(%r1),%r20\n"				\
+"	ldw	0(%r20),%r20\n"						\
+									\
+"	ldw	-40(%sp),%r25\n"	/* argc */			\
+"	comib,=	0,%r20,.Lnofix\n"	/* FIXME: Mispredicted branch */\
+"	ldw	-44(%sp),%r24\n"	/* argv (delay slot) */		\
+									\
+"	sub	%r25,%r20,%r25\n"					\
+"	stw	%r25,-40(%sp)\n"					\
+"	sh2add	%r20,%r24,%r24\n"					\
+"	stw	%r24,-44(%sp)\n"					\
+									\
+".Lnofix:\n"								\
+"	addil	LT'_rtld_local,%r19\n"					\
+"	ldw	RT'_rtld_local(%r1),%r26\n"				\
+"	bl	set_dp, %r2\n"						\
+"	ldw	0(%r26),%r26\n"						\
+									\
+	/* Call _dl_init(_dl_loaded, argc, argv, envp). */		\
+"	copy	%r28,%r26\n"						\
+									\
+	/* envp = argv + argc + 1 */					\
+"	sh2add	%r25,%r24,%r23\n"					\
+"	bl	_dl_init_internal,%r2\n"				\
+"	ldo	4(%r23),%r23\n"	/* delay slot */			\
+									\
+	/* Reload argc, argv to the registers start.S expects.  */	\
+"	ldw	-40(%sp),%r25\n"					\
+"	ldw	-44(%sp),%r24\n"					\
+									\
+	/* _dl_fini does have a PLT slot now.  I don't know how to get	\
+	   to it though, so this hack will remain. */			\
+"	.section .data\n"						\
+"__dl_fini_plabel:\n"							\
+"	.word	_dl_fini\n"						\
+"	.word	0xdeadbeef\n"						\
+"	.previous\n"							\
+									\
+	/* %r3 contains a function pointer, we need to mask out the	\
+	   lower bits and load the gp and jump address. */		\
+"	depi	0,31,2,%r3\n"						\
+"	ldw	0(%r3),%r2\n"						\
+"	addil	LT'__dl_fini_plabel,%r19\n"				\
+"	ldw	RT'__dl_fini_plabel(%r1),%r23\n"			\
+"	stw	%r19,4(%r23)\n"						\
+"	ldw	4(%r3),%r19\n"	/* load the object's gp */		\
+"	bv	%r0(%r2)\n"						\
+"	depi	2,31,2,%r23\n"	/* delay slot */			\
+	);
+
+
+/* This code gets called via the .plt stub, and is used in
+   dl-runtime.c to call the `fixup' function and then redirect to the
+   address it returns.
+   
+   WARNING: This template is also used by gcc's __cffc, and expects
+   that the "bl" for fixup() exist at a particular offset.
+   Do not change this template without changing gcc, while the prefix
+   "bl" should fix everything so gcc finds the right spot, it will
+   slow down __cffc when it attempts to call fixup to resolve function
+   descriptor references. Please refer to gcc/gcc/config/pa/fptr.c
+   
+   Enter with r19 = reloc offset, r20 = got-8, r21 = fixup ltp.  */
+#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) 			\
+  extern void tramp_name (void);		    			\
+  asm (									\
+ "	.text\n"							\
+ 	/* FAKE bl to provide gcc's __cffc with fixup's address */	\
+ "	bl	" #fixup_name ",%r2\n" /* Runtime address of fixup */	\
+ "	.globl " #tramp_name "\n"					\
+ "	.type " #tramp_name ",@function\n"				\
+  #tramp_name ":\n"							\
+ "	.proc\n"							\
+ "	.callinfo frame=64,calls,save_rp\n"				\
+ "	.entry\n"							\
+ 	/* Save return pointer */					\
+ "	stw	%r2,-20(%sp)\n"						\
+ 	/* Save argument registers in the call stack frame. */		\
+ "	stw	%r26,-36(%sp)\n"					\
+ "	stw	%r25,-40(%sp)\n"					\
+ "	stw	%r24,-44(%sp)\n"					\
+ "	stw	%r23,-48(%sp)\n"					\
+ 	/* Build a call frame, and save structure pointer. */		\
+ "	stwm	%r28,64(%sp)\n"						\
+ 									\
+ 	/* Set up args to fixup func.  */				\
+ "	ldw	8+4(%r20),%r26\n" /* (1) got[1] == struct link_map */	\
+ "	copy	%r19,%r25\n"	  /* (2) reloc offset  */		\
+ "	copy    %r2,%r24\n"	  /* (3) profile_fixup needs rp */	\
+ 									\
+ 	/* Call the real address resolver. */				\
+ "	bl	" #fixup_name ",%r2\n"					\
+ "	copy	%r21,%r19\n"	  /* set fixup func ltp (DELAY SLOT)*/	\
+ 									\
+ "	ldw	0(%r28),%r22\n"	  /* load up the returned func ptr */	\
+ "	ldw	4(%r28),%r19\n"						\
+ "	ldwm	-64(%sp),%r28\n"					\
+ 	/* Arguments. */						\
+ "	ldw	-36(%sp),%r26\n"					\
+ "	ldw	-40(%sp),%r25\n"					\
+ "	ldw	-44(%sp),%r24\n"					\
+ "	ldw	-48(%sp),%r23\n"					\
+ 	/* Call the real function. */					\
+ "	bv	%r0(%r22)\n"						\
+ 	/* Return pointer. */						\
+ "	ldw	-20(%sp),%r2\n"						\
+ "	.exit\n"							\
+ "	.procend\n");
+  
+#ifndef PROF
+#define ELF_MACHINE_RUNTIME_TRAMPOLINE			\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup);	\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_profile, profile_fixup);
+#else
+#define ELF_MACHINE_RUNTIME_TRAMPOLINE			\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup);	\
+  strong_alias (_dl_runtime_resolve, _dl_runtime_profile);
+#endif
+
+/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
+   PLT entries should not be allowed to define the value.
+   ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
+   of the main executable's symbols, as for a COPY reloc.  */
+#define elf_machine_type_class(type) \
+  ((((type) == R_PARISC_IPLT || (type) == R_PARISC_EPLT)	\
+    * ELF_RTYPE_CLASS_PLT)					\
+   | (((type) == R_PARISC_COPY) * ELF_RTYPE_CLASS_COPY))
+
+/* Used by the runtime in fixup to figure out if reloc is *really* PLT */
+#define ELF_MACHINE_JMP_SLOT R_PARISC_IPLT
+#define ELF_MACHINE_SIZEOF_JMP_SLOT PLT_ENTRY_SIZE
+
+/* We only use RELA. */
+#define ELF_MACHINE_NO_REL 1
+
+/* Return the address of the entry point. */
+#define ELF_MACHINE_START_ADDRESS(map, start) \
+  DL_STATIC_FUNCTION_ADDRESS (map, start)
+
+/* We define an initialization functions.  This is called very early in
+ *    _dl_sysdep_start.  */
+#define DL_PLATFORM_INIT dl_platform_init ()
+
+static inline void __attribute__ ((unused))
+dl_platform_init (void)
+{
+	if (GLRO(dl_platform) != NULL && *GLRO(dl_platform) == '\0')
+	/* Avoid an empty string which would disturb us.  */
+		GLRO(dl_platform) = NULL;
+}
+	
+#endif /* !dl_machine_h */
+
+/* These are only actually used where RESOLVE_MAP is defined, anyway. */
+#ifdef RESOLVE_MAP
+
+auto void __attribute__((always_inline))
+elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
+		  const Elf32_Sym *sym, const struct r_found_version *version,
+		  void *const reloc_addr_arg)
+{
+  Elf32_Addr *const reloc_addr = reloc_addr_arg;
+  const Elf32_Sym *const refsym = sym;
+  unsigned long const r_type = ELF32_R_TYPE (reloc->r_info);
+  struct link_map *sym_map;
+  Elf32_Addr value;
+
+# if !defined RTLD_BOOTSTRAP && !defined SHARED
+  /* 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 (GL(dl_rtld_map));
+# endif
+
+  /* RESOLVE_MAP will return a null value for undefined syms, and
+     non-null for all other syms.  In particular, relocs with no
+     symbol (symbol index of zero), also called *ABS* relocs, will be
+     resolved to MAP.  (The first entry in a symbol table is all
+     zeros, and an all zero Elf32_Sym has a binding of STB_LOCAL.)
+     See RESOLVE_MAP definition in elf/dl-reloc.c  */
+# ifdef RTLD_BOOTSTRAP
+  /* RESOLVE_MAP in rtld.c doesn't have the local sym test.  */
+  sym_map = (ELF32_ST_BIND (sym->st_info) != STB_LOCAL
+	     ? RESOLVE_MAP (&sym, version, r_type) : map);
+# else
+  sym_map = RESOLVE_MAP (&sym, version, r_type);
+# endif
+  if (sym_map)
+    {
+      value = sym ? sym_map->l_addr + sym->st_value : 0;
+      value += reloc->r_addend;
+    }
+  else
+    value = 0;
+
+  switch (r_type)
+    {
+    case R_PARISC_DIR32:
+      /* .eh_frame can have unaligned relocs.  */
+      if ((unsigned long) reloc_addr_arg & 3)
+	{
+	  char *rel_addr = (char *) reloc_addr_arg;
+	  rel_addr[0] = value >> 24;
+	  rel_addr[1] = value >> 16;
+	  rel_addr[2] = value >> 8;
+	  rel_addr[3] = value;
+	  return;
+	}
+      break;
+
+    case R_PARISC_PLABEL32:
+      /* Easy rule: If there is a symbol and it is global, then we
+         need to make a dynamic function descriptor.  Otherwise we
+         have the address of a PLT slot for a local symbol which we
+         know to be unique. */
+      if (sym == NULL
+	  || sym_map == NULL
+	  || ELF32_ST_BIND (sym->st_info) == STB_LOCAL)
+        {
+	  break;
+        }
+      /* Set bit 30 to indicate to $$dyncall that this is a PLABEL.
+         We have to do this outside of the generic function descriptor
+	 code, since it doesn't know about our requirement for setting
+	 protection bits */
+      value = (Elf32_Addr)((unsigned int)_dl_make_fptr (sym_map, sym, value) | 2);
+      break;
+
+    case R_PARISC_IPLT:
+      if (__builtin_expect (sym_map != NULL, 1))
+        {
+	  elf_machine_fixup_plt (NULL, sym_map, reloc, reloc_addr, value);
+        } 
+      else 
+        {
+	  /* If we get here, it's a (weak) undefined sym.  */
+	  elf_machine_fixup_plt (NULL, map, reloc, reloc_addr, value);
+        }
+      return;
+
+    case R_PARISC_COPY:
+      if (__builtin_expect (sym == NULL, 0))
+	/* This can happen in trace mode if an object could not be
+	   found.  */
+	break;
+      if (__builtin_expect (sym->st_size > refsym->st_size, 0)
+	  || (__builtin_expect (sym->st_size < refsym->st_size, 0)
+	      && __builtin_expect (GLRO(dl_verbose), 0)))
+	{
+	  const char *strtab;
+
+	  strtab = (const char *) 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 ?: "<program name unknown>",
+			    strtab + refsym->st_name);
+	}
+      memcpy (reloc_addr_arg, (void *) value,
+	      MIN (sym->st_size, refsym->st_size));
+      return;
+      
+    case R_PARISC_NONE:	/* Alright, Wilbur. */
+      return;
+
+    default:
+      _dl_reloc_bad_type (map, r_type, 0);
+    }
+
+  *reloc_addr = value;
+}
+
+/* hppa doesn't have an R_PARISC_RELATIVE reloc, but uses relocs with
+   ELF32_R_SYM (info) == 0 for a similar purpose.  */
+auto void __attribute__((always_inline))
+elf_machine_rela_relative (Elf32_Addr l_addr,
+			   const Elf32_Rela *reloc,
+			   void *const reloc_addr_arg)
+{
+  unsigned long const r_type = ELF32_R_TYPE (reloc->r_info);
+  Elf32_Addr *const reloc_addr = reloc_addr_arg;
+  static char msgbuf[] = { "Unknown" }; 
+  struct link_map map;
+  Elf32_Addr value;
+
+  value = l_addr + reloc->r_addend;
+
+  if (ELF32_R_SYM (reloc->r_info) != 0){ 
+    _dl_error_printf ("%s: In elf_machine_rela_relative "
+		      "ELF32_R_SYM (reloc->r_info) != 0. Aborting.",
+		      rtld_progname ?: "<program name unknown>");
+    ABORT_INSTRUCTION;  /* Crash. */
+  }
+
+  switch (r_type)
+    {
+    case R_PARISC_DIR32:
+      /* .eh_frame can have unaligned relocs.  */
+      if ((unsigned long) reloc_addr_arg & 3)
+	{
+	  char *rel_addr = (char *) reloc_addr_arg;
+	  rel_addr[0] = value >> 24;
+	  rel_addr[1] = value >> 16;
+	  rel_addr[2] = value >> 8;
+	  rel_addr[3] = value;
+	  return;
+	}
+      break;
+
+    case R_PARISC_PLABEL32:
+      break;
+
+    case R_PARISC_IPLT: /* elf_machine_runtime_setup already set gp */
+      break;
+
+    case R_PARISC_NONE:
+      return;
+
+    default: /* Bad reloc, map unknown (really it's the current map) */
+      map.l_name = msgbuf;
+      _dl_reloc_bad_type (&map, r_type, 0);
+      return;
+    }
+
+  *reloc_addr = value;
+}
+
+auto void __attribute__((always_inline))
+elf_machine_lazy_rel (struct link_map *map,
+		      Elf32_Addr l_addr, const Elf32_Rela *reloc)
+{
+  /* We don't have anything to do here.  elf_machine_runtime_setup has
+     done all the relocs already.  */
+}
+
+#endif /* RESOLVE_MAP */