-/*** bfd backend for sunos binaries */
+/* BFD backend for SunOS binaries.
+ Copyright 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2011
+ Free Software Foundation, Inc.
+ Written by Cygnus Support.
-/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+ This file is part of BFD, the Binary File Descriptor library.
-This file is part of BFD, the Binary File Diddler.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-BFD is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
-any later version.
+ This program 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 General Public License for more details.
-BFD 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 General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-You should have received a copy of the GNU General Public License
-along with BFD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+#define TARGETNAME "a.out-sunos-big"
-/* $Id$
- *
- */
+/* Do not "beautify" the CONCAT* macro args. Traditional C will not
+ remove whitespace added here, and thus will fail to concatenate
+ the tokens. */
+#define MY(OP) CONCAT2 (sunos_big_,OP)
-#define TARGET_BYTE_ORDER_BIG_P 1
-
-#include <ansidecl.h>
-#include "sysdep.h"
#include "bfd.h"
-#include "libbfd.h"
-
-
-void (*bfd_error_trap)();
-/*SUPPRESS558*/
-/*SUPPRESS529*/
-
-
+#include "bfdlink.h"
+#include "libaout.h"
+
+/* ??? Where should this go? */
+#define MACHTYPE_OK(mtype) \
+ (((mtype) == M_SPARC && bfd_lookup_arch (bfd_arch_sparc, 0) != NULL) \
+ || ((mtype) == M_SPARCLET \
+ && bfd_lookup_arch (bfd_arch_sparc, bfd_mach_sparc_sparclet) != NULL) \
+ || ((mtype) == M_SPARCLITE_LE \
+ && bfd_lookup_arch (bfd_arch_sparc, bfd_mach_sparc_sparclet) != NULL) \
+ || (((mtype) == M_UNKNOWN || (mtype) == M_68010 || (mtype) == M_68020) \
+ && bfd_lookup_arch (bfd_arch_m68k, 0) != NULL))
+
+#define MY_get_dynamic_symtab_upper_bound sunos_get_dynamic_symtab_upper_bound
+#define MY_canonicalize_dynamic_symtab sunos_canonicalize_dynamic_symtab
+#define MY_get_synthetic_symtab _bfd_nodynamic_get_synthetic_symtab
+#define MY_get_dynamic_reloc_upper_bound sunos_get_dynamic_reloc_upper_bound
+#define MY_canonicalize_dynamic_reloc sunos_canonicalize_dynamic_reloc
+#define MY_bfd_link_hash_table_create sunos_link_hash_table_create
+#define MY_add_dynamic_symbols sunos_add_dynamic_symbols
+#define MY_add_one_symbol sunos_add_one_symbol
+#define MY_link_dynamic_object sunos_link_dynamic_object
+#define MY_write_dynamic_symbol sunos_write_dynamic_symbol
+#define MY_check_dynamic_reloc sunos_check_dynamic_reloc
+#define MY_finish_dynamic_link sunos_finish_dynamic_link
+
+static bfd_boolean sunos_add_dynamic_symbols (bfd *, struct bfd_link_info *, struct external_nlist **, bfd_size_type *, char **);
+static bfd_boolean sunos_add_one_symbol (struct bfd_link_info *, bfd *, const char *, flagword, asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean, struct bfd_link_hash_entry **);
+static bfd_boolean sunos_link_dynamic_object (struct bfd_link_info *, bfd *);
+static bfd_boolean sunos_write_dynamic_symbol (bfd *, struct bfd_link_info *, struct aout_link_hash_entry *);
+static bfd_boolean sunos_check_dynamic_reloc (struct bfd_link_info *, bfd *, asection *, struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *, bfd_vma *);
+static bfd_boolean sunos_finish_dynamic_link (bfd *, struct bfd_link_info *);
+static struct bfd_link_hash_table *sunos_link_hash_table_create (bfd *);
+static long sunos_get_dynamic_symtab_upper_bound (bfd *);
+static long sunos_canonicalize_dynamic_symtab (bfd *, asymbol **);
+static long sunos_get_dynamic_reloc_upper_bound (bfd *);
+static long sunos_canonicalize_dynamic_reloc (bfd *, arelent **, asymbol **);
+
+/* Include the usual a.out support. */
+#include "aoutf1.h"
+
+/* The SunOS 4.1.4 /usr/include/locale.h defines valid as a macro. */
+#undef valid
+
+/* SunOS shared library support. We store a pointer to this structure
+ in obj_aout_dynamic_info (abfd). */
+
+struct sunos_dynamic_info
+{
+ /* Whether we found any dynamic information. */
+ bfd_boolean valid;
+ /* Dynamic information. */
+ struct internal_sun4_dynamic_link dyninfo;
+ /* Number of dynamic symbols. */
+ unsigned long dynsym_count;
+ /* Read in nlists for dynamic symbols. */
+ struct external_nlist *dynsym;
+ /* asymbol structures for dynamic symbols. */
+ aout_symbol_type *canonical_dynsym;
+ /* Read in dynamic string table. */
+ char *dynstr;
+ /* Number of dynamic relocs. */
+ unsigned long dynrel_count;
+ /* Read in dynamic relocs. This may be reloc_std_external or
+ reloc_ext_external. */
+ void * dynrel;
+ /* arelent structures for dynamic relocs. */
+ arelent *canonical_dynrel;
+};
+/* The hash table of dynamic symbols is composed of two word entries.
+ See include/aout/sun4.h for details. */
-typedef void generic_symbol_type;
-/* These values are correct for the SPARC. I dunno about anything else */
-#define PAGE_SIZE 0x02000
-#define SEGMENT_SIZE PAGE_SIZE
-#define TEXT_START_ADDR PAGE_SIZE
-#include "a.out.gnu.h"
-#include "stab.gnu.h"
-#include "ar.h"
-#include "liba.out.h" /* BFD a.out internal data structures */
+#define HASH_ENTRY_SIZE (2 * BYTES_IN_WORD)
-#include "a.out.sun4.h"
+/* Read in the basic dynamic information. This locates the __DYNAMIC
+ structure and uses it to find the dynamic_link structure. It
+ creates and saves a sunos_dynamic_info structure. If it can't find
+ __DYNAMIC, it sets the valid field of the sunos_dynamic_info
+ structure to FALSE to avoid doing this work again. */
-#define CTOR_TABLE_RELOC_IDX 2
-static CONST reloc_howto_type howto_table_ext[] =
+static bfd_boolean
+sunos_read_dynamic_info (bfd *abfd)
{
- /* type rs size bsz pcrel bitpos abs ovrf sf name partial inplace mask*/
-{ (unsigned int) RELOC_8, 0, 0, 8, false, 0, true, true,0,"8", false, 0x000000ff},
-{ (unsigned int) RELOC_16, 0, 1, 16, false, 0, true, true,0,"16", false, 0x0000ffff},
-{ (unsigned int) RELOC_32, 0, 2, 32, false, 0, true, true,0,"32", false, 0xffffffff},
-{ (unsigned int) RELOC_DISP8, 0, 0, 8, true, 0, false, true,0,"DISP8", false, 0x000000ff},
-{ (unsigned int) RELOC_DISP16, 0, 1, 16, true, 0, false, true,0,"DISP16", false, 0x0000ffff},
-{ (unsigned int) RELOC_DISP32, 0, 2, 32, true, 0, false, true,0,"DISP32", false, 0xffffffff},
-{ (unsigned int) RELOC_WDISP30,2, 2, 30, true, 0, false, true,0,"WDISP30", false, 0x3fffffff},
-{ (unsigned int) RELOC_WDISP22,2, 2, 22, true, 0, false, true,0,"WDISP22", false, 0x003fffff},
-{ (unsigned int) RELOC_HI22, 10, 2, 22, false, 0, false, true,0,"HI22", false, 0x003fffff},
-{ (unsigned int) RELOC_22, 0, 2, 22, false, 0, false, true,0,"22", false, 0x003fffff},
-{ (unsigned int) RELOC_13, 0, 2, 13, false, 0, false, true,0,"13", false, 0x00001fff},
-{ (unsigned int) RELOC_LO10, 0, 2, 10, false, 0, false, true,0,"LO10", false, 0x000003ff},
-{ (unsigned int) RELOC_SFA_BASE,0, 2, 32, false, 0, false, true,0,"SFA_BASE", false, 0xffffffff},
-{ (unsigned int) RELOC_SFA_OFF13,0,2, 32, false, 0, false, true,0,"SFA_OFF13",false, 0xffffffff},
-{ (unsigned int) RELOC_BASE10, 0, 2, 16, false, 0, false, true,0,"BASE10", false, 0x0000ffff},
-{ (unsigned int) RELOC_BASE13, 0, 2, 13, false, 0, false, true,0,"BASE13", false, 0x00001fff},
-{ (unsigned int) RELOC_BASE22, 0, 2, 0, false, 0, false, true,0,"BASE22", false, 0x00000000},
-{ (unsigned int) RELOC_PC10, 0, 2, 10, false, 0, false, true,0,"PC10", false, 0x000003ff},
-{ (unsigned int) RELOC_PC22, 0, 2, 22, false, 0, false, true,0,"PC22", false, 0x003fffff},
-{ (unsigned int) RELOC_JMP_TBL,0, 2, 32, false, 0, false, true,0,"JMP_TBL", false, 0xffffffff},
-{ (unsigned int) RELOC_SEGOFF16,0, 2, 0, false, 0, false, true,0,"SEGOFF16", false, 0x00000000},
-{ (unsigned int) RELOC_GLOB_DAT,0, 2, 0, false, 0, false, true,0,"GLOB_DAT", false, 0x00000000},
-{ (unsigned int) RELOC_JMP_SLOT,0, 2, 0, false, 0, false, true,0,"JMP_SLOT", false, 0x00000000},
-{ (unsigned int) RELOC_RELATIVE,0, 2, 0, false, 0, false, true,0,"RELATIVE", false, 0x00000000},
-{ (unsigned int) RELOC_JUMPTARG,2, 13, 16, true, 0, false, true,0,"JUMPTARG", false, 0x0000ffff},
-{ (unsigned int) RELOC_CONST, 0, 13, 16, false, 0, false, true,0,"CONST", false, 0x0000ffff},
-{ (unsigned int) RELOC_CONSTH, 16, 13, 16, false, 0, false, true,0,"CONSTH", false, 0x0000ffff},
-};
-
-/* Convert standard reloc records to "arelent" format (incl byte swap). */
-
-static CONST reloc_howto_type howto_table_std[] = {
- /* type rs size bsz pcrel bitpos abs ovrf sf name*/
-{ (unsigned int) 0, 0, 0, 8, false, 0, true, true,0,"8", true, 0x000000ff},
-{ (unsigned int) 1, 0, 1, 16, false, 0, true, true,0,"16", true, 0x0000ffff},
-{ (unsigned int) 2, 0, 2, 32, false, 0, true, true,0,"32", true, 0xffffffff},
-{ (unsigned int) 3, 0, 3, 64, false, 0, true, true,0,"64", true, 0xdeaddead},
-{ (unsigned int) 4, 0, 0, 8, true, 0, false, true,0,"DISP8", true, 0x000000ff},
-{ (unsigned int) 5, 0, 1, 16, true, 0, false, true,0,"DISP16", true, 0x0000ffff},
-{ (unsigned int) 6, 0, 2, 32, true, 0, false, true,0,"DISP32", true, 0xffffffff},
-{ (unsigned int) 7, 0, 3, 64, true, 0, false, true,0,"DISP64", true, 0xfeedface},
-};
+ struct sunos_dynamic_info *info;
+ asection *dynsec;
+ bfd_vma dynoff;
+ struct external_sun4_dynamic dyninfo;
+ unsigned long dynver;
+ struct external_sun4_dynamic_link linkinfo;
+ bfd_size_type amt;
+
+ if (obj_aout_dynamic_info (abfd) != NULL)
+ return TRUE;
+
+ if ((abfd->flags & DYNAMIC) == 0)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
-/** a.out files */
+ amt = sizeof (struct sunos_dynamic_info);
+ info = bfd_zalloc (abfd, amt);
+ if (!info)
+ return FALSE;
+ info->valid = FALSE;
+ info->dynsym = NULL;
+ info->dynstr = NULL;
+ info->canonical_dynsym = NULL;
+ info->dynrel = NULL;
+ info->canonical_dynrel = NULL;
+ obj_aout_dynamic_info (abfd) = (void *) info;
+
+ /* This code used to look for the __DYNAMIC symbol to locate the dynamic
+ linking information.
+ However this inhibits recovering the dynamic symbols from a
+ stripped object file, so blindly assume that the dynamic linking
+ information is located at the start of the data section.
+ We could verify this assumption later by looking through the dynamic
+ symbols for the __DYNAMIC symbol. */
+ if ((abfd->flags & DYNAMIC) == 0)
+ return TRUE;
+ if (! bfd_get_section_contents (abfd, obj_datasec (abfd), (void *) &dyninfo,
+ (file_ptr) 0,
+ (bfd_size_type) sizeof dyninfo))
+ return TRUE;
+
+ dynver = GET_WORD (abfd, dyninfo.ld_version);
+ if (dynver != 2 && dynver != 3)
+ return TRUE;
+
+ dynoff = GET_WORD (abfd, dyninfo.ld);
+
+ /* dynoff is a virtual address. It is probably always in the .data
+ section, but this code should work even if it moves. */
+ if (dynoff < bfd_get_section_vma (abfd, obj_datasec (abfd)))
+ dynsec = obj_textsec (abfd);
+ else
+ dynsec = obj_datasec (abfd);
+ dynoff -= bfd_get_section_vma (abfd, dynsec);
+ if (dynoff > dynsec->size)
+ return TRUE;
+
+ /* This executable appears to be dynamically linked in a way that we
+ can understand. */
+ if (! bfd_get_section_contents (abfd, dynsec, (void *) &linkinfo,
+ (file_ptr) dynoff,
+ (bfd_size_type) sizeof linkinfo))
+ return TRUE;
+
+ /* Swap in the dynamic link information. */
+ info->dyninfo.ld_loaded = GET_WORD (abfd, linkinfo.ld_loaded);
+ info->dyninfo.ld_need = GET_WORD (abfd, linkinfo.ld_need);
+ info->dyninfo.ld_rules = GET_WORD (abfd, linkinfo.ld_rules);
+ info->dyninfo.ld_got = GET_WORD (abfd, linkinfo.ld_got);
+ info->dyninfo.ld_plt = GET_WORD (abfd, linkinfo.ld_plt);
+ info->dyninfo.ld_rel = GET_WORD (abfd, linkinfo.ld_rel);
+ info->dyninfo.ld_hash = GET_WORD (abfd, linkinfo.ld_hash);
+ info->dyninfo.ld_stab = GET_WORD (abfd, linkinfo.ld_stab);
+ info->dyninfo.ld_stab_hash = GET_WORD (abfd, linkinfo.ld_stab_hash);
+ info->dyninfo.ld_buckets = GET_WORD (abfd, linkinfo.ld_buckets);
+ info->dyninfo.ld_symbols = GET_WORD (abfd, linkinfo.ld_symbols);
+ info->dyninfo.ld_symb_size = GET_WORD (abfd, linkinfo.ld_symb_size);
+ info->dyninfo.ld_text = GET_WORD (abfd, linkinfo.ld_text);
+ info->dyninfo.ld_plt_sz = GET_WORD (abfd, linkinfo.ld_plt_sz);
+
+ /* Reportedly the addresses need to be offset by the size of the
+ exec header in an NMAGIC file. */
+ if (adata (abfd).magic == n_magic)
+ {
+ unsigned long exec_bytes_size = adata (abfd).exec_bytes_size;
+
+ info->dyninfo.ld_need += exec_bytes_size;
+ info->dyninfo.ld_rules += exec_bytes_size;
+ info->dyninfo.ld_rel += exec_bytes_size;
+ info->dyninfo.ld_hash += exec_bytes_size;
+ info->dyninfo.ld_stab += exec_bytes_size;
+ info->dyninfo.ld_symbols += exec_bytes_size;
+ }
+ /* The only way to get the size of the symbol information appears to
+ be to determine the distance between it and the string table. */
+ info->dynsym_count = ((info->dyninfo.ld_symbols - info->dyninfo.ld_stab)
+ / EXTERNAL_NLIST_SIZE);
+ BFD_ASSERT (info->dynsym_count * EXTERNAL_NLIST_SIZE
+ == (unsigned long) (info->dyninfo.ld_symbols
+ - info->dyninfo.ld_stab));
-PROTO (void , sunos4_write_syms, ());
-PROTO (static boolean,sunos4_squirt_out_relocs,(bfd *abfd, asection *section));
+ /* Similarly, the relocs end at the hash table. */
+ info->dynrel_count = ((info->dyninfo.ld_hash - info->dyninfo.ld_rel)
+ / obj_reloc_entry_size (abfd));
+ BFD_ASSERT (info->dynrel_count * obj_reloc_entry_size (abfd)
+ == (unsigned long) (info->dyninfo.ld_hash
+ - info->dyninfo.ld_rel));
+ info->valid = TRUE;
-static size_t
-reloc_size_func(abfd)
-bfd *abfd;
-{
- switch (bfd_get_architecture (abfd)) {
- case bfd_arch_sparc:
- case bfd_arch_a29k:
- return RELOC_EXT_SIZE;
- default:
- return RELOC_STD_SIZE;
- }
+ return TRUE;
}
-void
-bfd_aout_swap_exec_header_in (abfd, raw_bytes, execp)
- bfd *abfd;
- unsigned char *raw_bytes;
- struct exec *execp;
-{
- struct exec_bytes *bytes = (struct exec_bytes *)raw_bytes;
-
- /* Now fill in fields in the execp, from the bytes in the raw data. */
- execp->a_info = bfd_h_getlong (abfd, bytes->a_info);
- execp->a_text = bfd_h_getlong (abfd, bytes->a_text);
- execp->a_data = bfd_h_getlong (abfd, bytes->a_data);
- execp->a_bss = bfd_h_getlong (abfd, bytes->a_bss);
- execp->a_syms = bfd_h_getlong (abfd, bytes->a_syms);
- execp->a_entry = bfd_h_getlong (abfd, bytes->a_entry);
- execp->a_trsize = bfd_h_getlong (abfd, bytes->a_trsize);
- execp->a_drsize = bfd_h_getlong (abfd, bytes->a_drsize);
-}
+/* Return the amount of memory required for the dynamic symbols. */
-void
-bfd_aout_swap_exec_header_out (abfd, execp, raw_bytes)
- bfd *abfd;
- struct exec *execp;
- unsigned char *raw_bytes;
+static long
+sunos_get_dynamic_symtab_upper_bound (bfd *abfd)
{
- struct exec_bytes *bytes = (struct exec_bytes *)raw_bytes;
-
- /* Now fill in fields in the raw data, from the fields in the exec struct. */
- bfd_h_putlong (abfd, execp->a_info , bytes->a_info);
- bfd_h_putlong (abfd, execp->a_text , bytes->a_text);
- bfd_h_putlong (abfd, execp->a_data , bytes->a_data);
- bfd_h_putlong (abfd, execp->a_bss , bytes->a_bss);
- bfd_h_putlong (abfd, execp->a_syms , bytes->a_syms);
- bfd_h_putlong (abfd, execp->a_entry , bytes->a_entry);
- bfd_h_putlong (abfd, execp->a_trsize, bytes->a_trsize);
- bfd_h_putlong (abfd, execp->a_drsize, bytes->a_drsize);
-}
+ struct sunos_dynamic_info *info;
-/* Steve wants some way to frob this stuff from Saber while he's debugging
- ld, so we have these funny shadow functions */
-/* ZMAGIC's start at 0 (making the exec part of the text section),
- other formats start after the exec
-*/
-static unsigned int n_txtoff(ptr)
-struct exec *ptr;
-{return N_MAGIC(*ptr)== ZMAGIC ? 0: sizeof(struct exec);}
-
-static unsigned int n_datoff(ptr)
-struct exec *ptr;
-{return n_txtoff(ptr) + ptr->a_text;}
-
-static unsigned int n_treloff(ptr)
-struct exec *ptr;
-{return n_datoff(ptr) + ptr->a_data;}
-
-static unsigned int n_dreloff(ptr)
-struct exec *ptr;
-{return n_treloff(ptr) + ptr->a_trsize;}
-
-static unsigned int n_symoff(ptr)
-struct exec *ptr;
-{return n_dreloff(ptr) + ptr->a_drsize;}
-
-static unsigned int n_stroff(ptr)
-struct exec *ptr;
-{return n_symoff(ptr) + ptr->a_syms;}
-
-unsigned int n_badmag(ptr)
- struct exec *ptr;
-{
- switch (N_MAGIC(*ptr)) {
- case OMAGIC: case NMAGIC: case ZMAGIC: return 0;
- default: return 1;
- }
-}
+ if (! sunos_read_dynamic_info (abfd))
+ return -1;
-bfd_target *
-sunos4_object_p (abfd)
- bfd *abfd;
-{
- unsigned char magicbuf[4]; /* Raw bytes of magic number from file */
- unsigned long magic; /* Swapped magic number */
- unsigned char exec_bytes[EXEC_BYTES_SIZE]; /* Raw bytes of exec hdr */
- struct exec *execp;
- void *rawptr;
+ info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd);
+ if (! info->valid)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return -1;
+ }
- bfd_error = system_call_error;
+ return (info->dynsym_count + 1) * sizeof (asymbol *);
+}
- if (bfd_read ((void *)magicbuf, 1, sizeof (magicbuf), abfd) !=
- sizeof (magicbuf))
- return 0;
- magic = bfd_h_getlong (abfd, magicbuf);
+/* Read the external dynamic symbols. */
- /* Baroque syntax to mask deficiencies of the Sun compiler */
- /* if (N_BADMAG (*((struct exec *) &magic))) return 0; */
- if (n_badmag ((struct exec *) &magic)) return 0;
+static bfd_boolean
+sunos_slurp_dynamic_symtab (bfd *abfd)
+{
+ struct sunos_dynamic_info *info;
+ bfd_size_type amt;
- if (bfd_seek (abfd, 0L, false) < 0) return 0;
+ /* Get the general dynamic information. */
+ if (obj_aout_dynamic_info (abfd) == NULL)
+ {
+ if (! sunos_read_dynamic_info (abfd))
+ return FALSE;
+ }
- if (bfd_read ((void *) exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
- != EXEC_BYTES_SIZE) {
- bfd_error = wrong_format;
- return 0;
- }
+ info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd);
+ if (! info->valid)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return FALSE;
+ }
- /* Use an intermediate variable for clarity */
- rawptr = (void *) zalloc (sizeof (struct sunexdata) + sizeof (struct exec));
+ /* Get the dynamic nlist structures. */
+ if (info->dynsym == NULL)
+ {
+ amt = (bfd_size_type) info->dynsym_count * EXTERNAL_NLIST_SIZE;
+ info->dynsym = bfd_alloc (abfd, amt);
+ if (info->dynsym == NULL && info->dynsym_count != 0)
+ return FALSE;
+ if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_stab, SEEK_SET) != 0
+ || bfd_bread ((void *) info->dynsym, amt, abfd) != amt)
+ {
+ if (info->dynsym != NULL)
+ {
+ bfd_release (abfd, info->dynsym);
+ info->dynsym = NULL;
+ }
+ return FALSE;
+ }
+ }
- if (rawptr == NULL) {
- bfd_error = no_memory;
- return 0;
- }
+ /* Get the dynamic strings. */
+ if (info->dynstr == NULL)
+ {
+ amt = info->dyninfo.ld_symb_size;
+ info->dynstr = bfd_alloc (abfd, amt);
+ if (info->dynstr == NULL && info->dyninfo.ld_symb_size != 0)
+ return FALSE;
+ if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_symbols, SEEK_SET) != 0
+ || bfd_bread ((void *) info->dynstr, amt, abfd) != amt)
+ {
+ if (info->dynstr != NULL)
+ {
+ bfd_release (abfd, info->dynstr);
+ info->dynstr = NULL;
+ }
+ return FALSE;
+ }
+ }
- set_tdata (abfd, ((struct sunexdata *) rawptr));
- exec_hdr (abfd) = execp =
- (struct exec *) ((char *)rawptr + sizeof (struct sunexdata));
+ return TRUE;
+}
- bfd_aout_swap_exec_header_in (abfd, exec_bytes, execp);
+/* Read in the dynamic symbols. */
- /* Set the file flags */
- abfd->flags = NO_FLAGS;
- if (execp->a_drsize || execp->a_trsize)
- abfd->flags |= HAS_RELOC;
- if (execp->a_entry)
- abfd->flags |= EXEC_P;
- if (execp->a_syms)
- abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
+static long
+sunos_canonicalize_dynamic_symtab (bfd *abfd, asymbol **storage)
+{
+ struct sunos_dynamic_info *info;
+ unsigned long i;
+ if (! sunos_slurp_dynamic_symtab (abfd))
+ return -1;
- if (N_MAGIC (*execp) == ZMAGIC) abfd->flags |= D_PAGED;
- if (N_MAGIC (*execp) == NMAGIC) abfd->flags |= WP_TEXT;
+ info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd);
- /* Determine the architecture and machine type of the object file. */
- abfd->obj_arch = bfd_arch_unknown; /* Default values */
- abfd->obj_machine = 0;
- switch (N_MACHTYPE (*execp)) {
+#ifdef CHECK_DYNAMIC_HASH
+ /* Check my understanding of the dynamic hash table by making sure
+ that each symbol can be located in the hash table. */
+ {
+ bfd_size_type table_size;
+ bfd_byte *table;
+ bfd_size_type i;
+
+ if (info->dyninfo.ld_buckets > info->dynsym_count)
+ abort ();
+ table_size = info->dyninfo.ld_stab - info->dyninfo.ld_hash;
+ table = bfd_malloc (table_size);
+ if (table == NULL && table_size != 0)
+ abort ();
+ if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_hash, SEEK_SET) != 0
+ || bfd_bread ((void *) table, table_size, abfd) != table_size)
+ abort ();
+ for (i = 0; i < info->dynsym_count; i++)
+ {
+ unsigned char *name;
+ unsigned long hash;
+
+ name = ((unsigned char *) info->dynstr
+ + GET_WORD (abfd, info->dynsym[i].e_strx));
+ hash = 0;
+ while (*name != '\0')
+ hash = (hash << 1) + *name++;
+ hash &= 0x7fffffff;
+ hash %= info->dyninfo.ld_buckets;
+ while (GET_WORD (abfd, table + hash * HASH_ENTRY_SIZE) != i)
+ {
+ hash = GET_WORD (abfd,
+ table + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD);
+ if (hash == 0 || hash >= table_size / HASH_ENTRY_SIZE)
+ abort ();
+ }
+ }
+ free (table);
+ }
+#endif /* CHECK_DYNAMIC_HASH */
- case M_UNKNOWN:
- break;
+ /* Get the asymbol structures corresponding to the dynamic nlist
+ structures. */
+ if (info->canonical_dynsym == NULL)
+ {
+ bfd_size_type size;
+ bfd_size_type strsize = info->dyninfo.ld_symb_size;
+
+ size = (bfd_size_type) info->dynsym_count * sizeof (aout_symbol_type);
+ info->canonical_dynsym = bfd_alloc (abfd, size);
+ if (info->canonical_dynsym == NULL && info->dynsym_count != 0)
+ return -1;
+
+ if (! aout_32_translate_symbol_table (abfd, info->canonical_dynsym,
+ info->dynsym,
+ (bfd_size_type) info->dynsym_count,
+ info->dynstr, strsize, TRUE))
+ {
+ if (info->canonical_dynsym != NULL)
+ {
+ bfd_release (abfd, info->canonical_dynsym);
+ info->canonical_dynsym = NULL;
+ }
+ return -1;
+ }
+ }
- case M_68010:
- abfd->obj_arch = bfd_arch_m68k;
- abfd->obj_machine = 68010;
- break;
+ /* Return pointers to the dynamic asymbol structures. */
+ for (i = 0; i < info->dynsym_count; i++)
+ *storage++ = (asymbol *) (info->canonical_dynsym + i);
+ *storage = NULL;
- case M_68020:
- abfd->obj_arch = bfd_arch_m68k;
- abfd->obj_machine = 68020;
- break;
+ return info->dynsym_count;
+}
- case M_SPARC:
- abfd->obj_arch = bfd_arch_sparc;
- break;
+/* Return the amount of memory required for the dynamic relocs. */
- case M_386:
- abfd->obj_arch = bfd_arch_i386;
- break;
+static long
+sunos_get_dynamic_reloc_upper_bound (bfd *abfd)
+{
+ struct sunos_dynamic_info *info;
- case M_29K:
- abfd->obj_arch = bfd_arch_a29k;
- break;
+ if (! sunos_read_dynamic_info (abfd))
+ return -1;
- default:
- abfd->obj_arch = bfd_arch_obscure;
- break;
- }
+ info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd);
+ if (! info->valid)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return -1;
+ }
- bfd_get_start_address (abfd) = execp->a_entry;
-
- /* Remember the positions of the string table and symbol table. */
- obj_str_filepos (abfd) = n_stroff (execp);
- obj_sym_filepos (abfd) = n_symoff (execp);
-
- /* create the sections. This is raunchy, but bfd_close wants to reclaim
- them */
- obj_textsec (abfd) = (asection *)NULL;
- obj_datasec (abfd) = (asection *)NULL;
- obj_bsssec (abfd) = (asection *)NULL;
- obj_aout_symbols(abfd) = (aout_symbol_type *)NULL;
- (void)bfd_make_section(abfd, ".text");
- (void)bfd_make_section(abfd, ".data");
- (void)bfd_make_section(abfd, ".bss");
-
- obj_datasec (abfd)->size = execp->a_data;
- obj_bsssec (abfd)->size = execp->a_bss;
- obj_textsec (abfd)->size = execp->a_text;
- obj_datasec (abfd)->vma = N_DATADDR(*execp);
- obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
- obj_textsec (abfd)->vma = N_TXTADDR(*execp);
-
- obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
- obj_datasec (abfd)->filepos = N_DATOFF(*execp);
-
- obj_textsec (abfd)->rel_filepos = N_TROFF(*execp);
- obj_datasec (abfd)->rel_filepos = N_DROFF(*execp);
-
- obj_textsec (abfd)->flags = (execp->a_trsize != 0 ?
- (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) :
- (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS));
- obj_datasec (abfd)->flags = (execp->a_drsize != 0 ?
- (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_HAS_CONTENTS) :
- (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS));
- obj_bsssec (abfd)->flags = SEC_ALLOC;
-
- abfd->sections = obj_textsec (abfd);
- obj_textsec (abfd)->next = obj_datasec (abfd);
- obj_datasec (abfd)->next = obj_bsssec (abfd);
- return abfd->xvec;
+ return (info->dynrel_count + 1) * sizeof (arelent *);
}
+/* Read in the dynamic relocs. */
-boolean
-sunos4_mkobject (abfd)
- bfd *abfd;
+static long
+sunos_canonicalize_dynamic_reloc (bfd *abfd, arelent **storage, asymbol **syms)
{
- char *rawptr;
+ struct sunos_dynamic_info *info;
+ unsigned long i;
+ bfd_size_type size;
+
+ /* Get the general dynamic information. */
+ if (obj_aout_dynamic_info (abfd) == NULL)
+ {
+ if (! sunos_read_dynamic_info (abfd))
+ return -1;
+ }
- bfd_error = system_call_error;
+ info = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd);
+ if (! info->valid)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return -1;
+ }
- /* Use an intermediate variable for clarity */
- rawptr = zalloc (sizeof (struct sunexdata) + sizeof (struct exec));
+ /* Get the dynamic reloc information. */
+ if (info->dynrel == NULL)
+ {
+ size = (bfd_size_type) info->dynrel_count * obj_reloc_entry_size (abfd);
+ info->dynrel = bfd_alloc (abfd, size);
+ if (info->dynrel == NULL && size != 0)
+ return -1;
+ if (bfd_seek (abfd, (file_ptr) info->dyninfo.ld_rel, SEEK_SET) != 0
+ || bfd_bread ((void *) info->dynrel, size, abfd) != size)
+ {
+ if (info->dynrel != NULL)
+ {
+ bfd_release (abfd, info->dynrel);
+ info->dynrel = NULL;
+ }
+ return -1;
+ }
+ }
- if (rawptr == NULL) {
- bfd_error = no_memory;
- return false;
- }
+ /* Get the arelent structures corresponding to the dynamic reloc
+ information. */
+ if (info->canonical_dynrel == NULL)
+ {
+ arelent *to;
+
+ size = (bfd_size_type) info->dynrel_count * sizeof (arelent);
+ info->canonical_dynrel = bfd_alloc (abfd, size);
+ if (info->canonical_dynrel == NULL && info->dynrel_count != 0)
+ return -1;
- abfd->tdata = (void *)((struct sunexdata *) rawptr);
- exec_hdr (abfd) = (struct exec *) (rawptr + sizeof (struct sunexdata));
+ to = info->canonical_dynrel;
- /* For simplicity's sake we just make all the sections right here. */
+ if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE)
+ {
+ struct reloc_ext_external *p;
+ struct reloc_ext_external *pend;
+
+ p = (struct reloc_ext_external *) info->dynrel;
+ pend = p + info->dynrel_count;
+ for (; p < pend; p++, to++)
+ NAME (aout, swap_ext_reloc_in) (abfd, p, to, syms,
+ (bfd_size_type) info->dynsym_count);
+ }
+ else
+ {
+ struct reloc_std_external *p;
+ struct reloc_std_external *pend;
+
+ p = (struct reloc_std_external *) info->dynrel;
+ pend = p + info->dynrel_count;
+ for (; p < pend; p++, to++)
+ NAME (aout, swap_std_reloc_in) (abfd, p, to, syms,
+ (bfd_size_type) info->dynsym_count);
+ }
+ }
- obj_textsec (abfd) = (asection *)NULL;
- obj_datasec (abfd) = (asection *)NULL;
- obj_bsssec (abfd) = (asection *)NULL;
- bfd_make_section (abfd, ".text");
- bfd_make_section (abfd, ".data");
- bfd_make_section (abfd, ".bss");
+ /* Return pointers to the dynamic arelent structures. */
+ for (i = 0; i < info->dynrel_count; i++)
+ *storage++ = info->canonical_dynrel + i;
+ *storage = NULL;
- return true;
+ return info->dynrel_count;
}
+\f
+/* Code to handle linking of SunOS shared libraries. */
-/* Keep track of machine architecture and machine type for a.out's.
- Return the machine_type for a particular arch&machine, or M_UNKNOWN
- if that exact arch&machine can't be represented in a.out format.
+/* A SPARC procedure linkage table entry is 12 bytes. The first entry
+ in the table is a jump which is filled in by the runtime linker.
+ The remaining entries are branches back to the first entry,
+ followed by an index into the relocation table encoded to look like
+ a sethi of %g0. */
- If the architecture is understood, machine type 0 (default) should
- always be understood. */
+#define SPARC_PLT_ENTRY_SIZE (12)
-static enum machine_type
-aout_machine_type (arch, machine)
- enum bfd_architecture arch;
- unsigned long machine;
+static const bfd_byte sparc_plt_first_entry[SPARC_PLT_ENTRY_SIZE] =
{
- enum machine_type arch_flags;
-
- arch_flags = M_UNKNOWN;
-
- switch (arch) {
- case bfd_arch_sparc:
- if (machine == 0) arch_flags = M_SPARC;
- break;
-
- case bfd_arch_m68k:
- switch (machine) {
- case 0: arch_flags = M_UNKNOWN; break;
- case 68000: arch_flags = M_UNKNOWN; break;
- case 68010: arch_flags = M_68010; break;
- case 68020: arch_flags = M_68020; break;
- default: arch_flags = M_UNKNOWN; break;
- }
- break;
+ /* sethi %hi(0),%g1; address filled in by runtime linker. */
+ 0x3, 0, 0, 0,
+ /* jmp %g1; offset filled in by runtime linker. */
+ 0x81, 0xc0, 0x60, 0,
+ /* nop */
+ 0x1, 0, 0, 0
+};
- case bfd_arch_i386:
- if (machine == 0) arch_flags = M_386;
- break;
+/* save %sp, -96, %sp */
+#define SPARC_PLT_ENTRY_WORD0 ((bfd_vma) 0x9de3bfa0)
+/* call; address filled in later. */
+#define SPARC_PLT_ENTRY_WORD1 ((bfd_vma) 0x40000000)
+/* sethi; reloc index filled in later. */
+#define SPARC_PLT_ENTRY_WORD2 ((bfd_vma) 0x01000000)
+
+/* This sequence is used when for the jump table entry to a defined
+ symbol in a complete executable. It is used when linking PIC
+ compiled code which is not being put into a shared library. */
+/* sethi <address to be filled in later>, %g1 */
+#define SPARC_PLT_PIC_WORD0 ((bfd_vma) 0x03000000)
+/* jmp %g1 + <address to be filled in later> */
+#define SPARC_PLT_PIC_WORD1 ((bfd_vma) 0x81c06000)
+/* nop */
+#define SPARC_PLT_PIC_WORD2 ((bfd_vma) 0x01000000)
+
+/* An m68k procedure linkage table entry is 8 bytes. The first entry
+ in the table is a jump which is filled in the by the runtime
+ linker. The remaining entries are branches back to the first
+ entry, followed by a two byte index into the relocation table. */
+
+#define M68K_PLT_ENTRY_SIZE (8)
+
+static const bfd_byte m68k_plt_first_entry[M68K_PLT_ENTRY_SIZE] =
+{
+ /* jmps @# */
+ 0x4e, 0xf9,
+ /* Filled in by runtime linker with a magic address. */
+ 0, 0, 0, 0,
+ /* Not used? */
+ 0, 0
+};
- case bfd_arch_a29k:
- if (machine == 0) arch_flags = M_29K;
- break;
+/* bsrl */
+#define M68K_PLT_ENTRY_WORD0 ((bfd_vma) 0x61ff)
+/* Remaining words filled in later. */
- default:
- arch_flags = M_UNKNOWN;
- break;
- }
- return arch_flags;
-}
+/* An entry in the SunOS linker hash table. */
-boolean
-sunos4_set_arch_mach (abfd, arch, machine)
- bfd *abfd;
- enum bfd_architecture arch;
- unsigned long machine;
+struct sunos_link_hash_entry
{
- abfd->obj_arch = arch;
- abfd->obj_machine = machine;
- if (arch != bfd_arch_unknown &&
- aout_machine_type (arch, machine) == M_UNKNOWN)
- return false; /* We can't represent this type */
- return true; /* We're easy ... */
-}
+ struct aout_link_hash_entry root;
+
+ /* If this is a dynamic symbol, this is its index into the dynamic
+ symbol table. This is initialized to -1. As the linker looks at
+ the input files, it changes this to -2 if it will be added to the
+ dynamic symbol table. After all the input files have been seen,
+ the linker will know whether to build a dynamic symbol table; if
+ it does build one, this becomes the index into the table. */
+ long dynindx;
+
+ /* If this is a dynamic symbol, this is the index of the name in the
+ dynamic symbol string table. */
+ long dynstr_index;
+
+ /* The offset into the global offset table used for this symbol. If
+ the symbol does not require a GOT entry, this is 0. */
+ bfd_vma got_offset;
+
+ /* The offset into the procedure linkage table used for this symbol.
+ If the symbol does not require a PLT entry, this is 0. */
+ bfd_vma plt_offset;
+
+ /* Some linker flags. */
+ unsigned char flags;
+ /* Symbol is referenced by a regular object. */
+#define SUNOS_REF_REGULAR 01
+ /* Symbol is defined by a regular object. */
+#define SUNOS_DEF_REGULAR 02
+ /* Symbol is referenced by a dynamic object. */
+#define SUNOS_REF_DYNAMIC 04
+ /* Symbol is defined by a dynamic object. */
+#define SUNOS_DEF_DYNAMIC 010
+ /* Symbol is a constructor symbol in a regular object. */
+#define SUNOS_CONSTRUCTOR 020
+};
+
+/* The SunOS linker hash table. */
-boolean
-sunos4_write_object_contents (abfd)
- bfd *abfd;
+struct sunos_link_hash_table
{
- unsigned int data_pad = 0;
- unsigned char exec_bytes[EXEC_BYTES_SIZE];
- struct exec *execp = exec_hdr (abfd);
-
- execp->a_text = obj_textsec (abfd)->size;
-
- /* Magic number, maestro, please! */
- switch (bfd_get_architecture(abfd)) {
- case bfd_arch_m68k:
- switch (bfd_get_machine(abfd)) {
- case 68010:
- N_SET_MACHTYPE(*execp, M_68010);
- break;
- default:
- case 68020:
- N_SET_MACHTYPE(*execp, M_68020);
- break;
- }
- break;
- case bfd_arch_sparc:
- N_SET_MACHTYPE(*execp, M_SPARC);
- break;
- case bfd_arch_i386:
- N_SET_MACHTYPE(*execp, M_386);
- break;
- case bfd_arch_a29k:
- N_SET_MACHTYPE(*execp, M_29K);
- break;
- default:
- N_SET_MACHTYPE(*execp, M_UNKNOWN);
- }
+ struct aout_link_hash_table root;
- N_SET_MAGIC (*execp, OMAGIC);
- if (abfd->flags & D_PAGED) {
- execp->a_text = obj_textsec (abfd)->size + sizeof(struct exec);
- N_SET_MAGIC (*execp, ZMAGIC);
- } else if (abfd->flags & WP_TEXT) {
- N_SET_MAGIC (*execp, NMAGIC);
- }
- N_SET_FLAGS (*execp, 0x1); /* copied from ld.c; who the hell knows? */
+ /* The object which holds the dynamic sections. */
+ bfd *dynobj;
- if (abfd->flags & D_PAGED)
- {
- data_pad = ((obj_datasec(abfd)->size + PAGE_SIZE -1)
- & (- PAGE_SIZE)) - obj_datasec(abfd)->size;
+ /* Whether we have created the dynamic sections. */
+ bfd_boolean dynamic_sections_created;
- if (data_pad > obj_bsssec(abfd)->size)
- execp->a_bss = 0;
- else
- execp->a_bss = obj_bsssec(abfd)->size - data_pad;
- execp->a_data = obj_datasec(abfd)->size + data_pad;
+ /* Whether we need the dynamic sections. */
+ bfd_boolean dynamic_sections_needed;
- }
- else {
- execp->a_data = obj_datasec (abfd)->size;
- execp->a_bss = obj_bsssec (abfd)->size;
- }
+ /* Whether we need the .got table. */
+ bfd_boolean got_needed;
- execp->a_syms = bfd_get_symcount (abfd) * sizeof (struct nlist);
- execp->a_entry = bfd_get_start_address (abfd);
+ /* The number of dynamic symbols. */
+ size_t dynsymcount;
- execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *
- reloc_size_func(abfd));
-
- execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *
- reloc_size_func(abfd));
+ /* The number of buckets in the hash table. */
+ size_t bucketcount;
- bfd_aout_swap_exec_header_out (abfd, execp, exec_bytes);
+ /* The list of dynamic objects needed by dynamic objects included in
+ the link. */
+ struct bfd_link_needed_list *needed;
- bfd_seek (abfd, 0L, false);
- bfd_write ((void *) exec_bytes, 1, EXEC_BYTES_SIZE, abfd);
+ /* The offset of __GLOBAL_OFFSET_TABLE_ into the .got section. */
+ bfd_vma got_base;
+};
- /* Now write out reloc info, followed by syms and strings */
+/* Routine to create an entry in an SunOS link hash table. */
- if (bfd_get_symcount (abfd) != 0)
+static struct bfd_hash_entry *
+sunos_link_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
+{
+ struct sunos_link_hash_entry *ret = (struct sunos_link_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == NULL)
+ ret = bfd_hash_allocate (table, sizeof (* ret));
+ if (ret == NULL)
+ return NULL;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct sunos_link_hash_entry *)
+ NAME (aout, link_hash_newfunc) ((struct bfd_hash_entry *) ret,
+ table, string));
+ if (ret != NULL)
{
- bfd_seek (abfd,
- (long)(N_SYMOFF(*execp)), false);
-
- sunos4_write_syms (abfd);
-
- bfd_seek (abfd, (long)(N_TROFF(*execp)), false);
-
- if (!sunos4_squirt_out_relocs (abfd, obj_textsec (abfd))) return false;
- bfd_seek (abfd, (long)(N_DROFF(*execp)), false);
-
- if (!sunos4_squirt_out_relocs (abfd, obj_datasec (abfd))) return false;
+ /* Set local fields. */
+ ret->dynindx = -1;
+ ret->dynstr_index = -1;
+ ret->got_offset = 0;
+ ret->plt_offset = 0;
+ ret->flags = 0;
}
- return true;
-}
-/** core files */
-/** core files */
-
-#define CORE_MAGIC 0x080456
-#define CORE_NAMELEN 16
-
-/* The core structure is taken from the Sun documentation.
- Unfortunately, they don't document the FPA structure, or at least I
- can't find it easily. Fortunately the core header contains its own
- length. So this shouldn't cause problems, except for c_ucode, which
- so far we don't use but is easy to find with a little arithmetic. */
-
-/* But the reg structure can be gotten from the SPARC processor handbook.
- This really should be in a GNU include file though so that gdb can use
- the same info. */
-struct regs {
- int r_psr;
- int r_pc;
- int r_npc;
- int r_y;
- int r_g1;
- int r_g2;
- int r_g3;
- int r_g4;
- int r_g5;
- int r_g6;
- int r_g7;
- int r_o0;
- int r_o1;
- int r_o2;
- int r_o3;
- int r_o4;
- int r_o5;
- int r_o6;
- int r_o7;
-};
+ return (struct bfd_hash_entry *) ret;
+}
-/* Taken from Sun documentation: */
-
-/* FIXME: It's worse than we expect. This struct contains TWO substructs
- neither of whose size we know, WITH STUFF IN BETWEEN THEM! We can't
- even portably access the stuff in between! */
-
-struct core {
- int c_magic; /* Corefile magic number */
- int c_len; /* Sizeof (struct core) */
- struct regs c_regs; /* General purpose registers */
- struct exec c_aouthdr; /* A.out header */
- int c_signo; /* Killing signal, if any */
- int c_tsize; /* Text size (bytes) */
- int c_dsize; /* Data size (bytes) */
- int c_ssize; /* Stack size (bytes) */
- char c_cmdname[CORE_NAMELEN + 1]; /* Command name */
- double fp_stuff[1]; /* external FPU state (size unknown by us) */
- /* The type "double" is critical here, for alignment.
- SunOS declares a struct here, but the struct's alignment
- is double since it contains doubles. */
- int c_ucode; /* Exception no. from u_code */
- /* (this member is not accessible by name since we don't
- portably know the size of fp_stuff.) */
-};
+/* Create a SunOS link hash table. */
-/* Supposedly the user stack grows downward from the bottom of kernel memory.
- Presuming that this remains true, this definition will work. */
-#define USRSTACK (-(128*1024*1024))
-
-PROTO (static void, swapcore, (bfd *abfd, struct core *core));
-
-/* need this cast b/c ptr is really void * */
-#define core_hdr(bfd) (((struct suncordata *) (bfd->tdata))->hdr)
-#define core_datasec(bfd) (((struct suncordata *) ((bfd)->tdata))->data_section)
-#define core_stacksec(bfd) (((struct suncordata*)((bfd)->tdata))->stack_section)
-#define core_regsec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg_section)
-#define core_reg2sec(bfd) (((struct suncordata *) ((bfd)->tdata))->reg2_section)
-
-/* These are stored in the bfd's tdata */
-struct suncordata {
- struct core *hdr; /* core file header */
- asection *data_section;
- asection *stack_section;
- asection *reg_section;
- asection *reg2_section;
-};
-
-bfd_target *
-sunos4_core_file_p (abfd)
- bfd *abfd;
+static struct bfd_link_hash_table *
+sunos_link_hash_table_create (bfd *abfd)
{
- unsigned char longbuf[4]; /* Raw bytes of various header fields */
- int core_size;
- int core_mag;
- struct core *core;
- char *rawptr;
-
- bfd_error = system_call_error;
-
- if (bfd_read ((void *)longbuf, 1, sizeof (longbuf), abfd) !=
- sizeof (longbuf))
- return 0;
- core_mag = bfd_h_getlong (abfd, longbuf);
-
- if (core_mag != CORE_MAGIC) return 0;
-
- /* SunOS core headers can vary in length; second word is size; */
- if (bfd_read ((void *)longbuf, 1, sizeof (longbuf), abfd) !=
- sizeof (longbuf))
- return 0;
- core_size = bfd_h_getlong (abfd, longbuf);
- /* Sanity check */
- if (core_size > 20000)
- return 0;
-
- if (bfd_seek (abfd, 0L, false) < 0) return 0;
-
- rawptr = zalloc (core_size + sizeof (struct suncordata));
- if (rawptr == NULL) {
- bfd_error = no_memory;
- return 0;
- }
+ struct sunos_link_hash_table *ret;
+ bfd_size_type amt = sizeof (struct sunos_link_hash_table);
+
+ ret = bfd_malloc (amt);
+ if (ret == NULL)
+ return NULL;
+ if (!NAME (aout, link_hash_table_init) (&ret->root, abfd,
+ sunos_link_hash_newfunc,
+ sizeof (struct sunos_link_hash_entry)))
+ {
+ free (ret);
+ return NULL;
+ }
- core = (struct core *) (rawptr + sizeof (struct suncordata));
+ ret->dynobj = NULL;
+ ret->dynamic_sections_created = FALSE;
+ ret->dynamic_sections_needed = FALSE;
+ ret->got_needed = FALSE;
+ ret->dynsymcount = 0;
+ ret->bucketcount = 0;
+ ret->needed = NULL;
+ ret->got_base = 0;
- if ((bfd_read ((void *) core, 1, core_size, abfd)) != core_size) {
- bfd_error = system_call_error;
- free ((void *)rawptr);
- return 0;
- }
+ return &ret->root.root;
+}
- swapcore (abfd, core);
- set_tdata (abfd, ((struct suncordata *) rawptr));
- core_hdr (abfd) = core;
-
- /* create the sections. This is raunchy, but bfd_close wants to reclaim
- them */
- core_stacksec (abfd) = (asection *) zalloc (sizeof (asection));
- if (core_stacksec (abfd) == NULL) {
-loser:
- bfd_error = no_memory;
- free ((void *)rawptr);
- return 0;
- }
- core_datasec (abfd) = (asection *) zalloc (sizeof (asection));
- if (core_datasec (abfd) == NULL) {
-loser1:
- free ((void *)core_stacksec (abfd));
- goto loser;
- }
- core_regsec (abfd) = (asection *) zalloc (sizeof (asection));
- if (core_regsec (abfd) == NULL) {
-loser2:
- free ((void *)core_datasec (abfd));
- goto loser1;
- }
- core_reg2sec (abfd) = (asection *) zalloc (sizeof (asection));
- if (core_reg2sec (abfd) == NULL) {
- free ((void *)core_regsec (abfd));
- goto loser2;
- }
+/* Look up an entry in an SunOS link hash table. */
- core_stacksec (abfd)->name = ".stack";
- core_datasec (abfd)->name = ".data";
- core_regsec (abfd)->name = ".reg";
- core_reg2sec (abfd)->name = ".reg2";
-
- core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
- core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
- core_regsec (abfd)->flags = SEC_ALLOC;
- core_reg2sec (abfd)->flags = SEC_ALLOC;
-
- core_stacksec (abfd)->size = core->c_ssize;
- core_datasec (abfd)->size = core->c_dsize;
- core_regsec (abfd)->size = (sizeof core->c_regs);
- /* Float regs take up end of struct, except c_ucode. */
- core_reg2sec (abfd)->size = core_size - (sizeof core->c_ucode) -
- (file_ptr)(((struct core *)0)->fp_stuff);
-
- core_stacksec (abfd)->vma = (USRSTACK - core->c_ssize);
- core_datasec (abfd)->vma = N_DATADDR(core->c_aouthdr);
- core_regsec (abfd)->vma = -1;
- core_reg2sec (abfd)->vma = -1;
-
- core_stacksec (abfd)->filepos = core->c_len + core->c_dsize;
- core_datasec (abfd)->filepos = core->c_len;
- /* In file header: */
- core_regsec (abfd)->filepos = (file_ptr)(&((struct core *)0)->c_regs);
- core_reg2sec (abfd)->filepos = (file_ptr)(((struct core *)0)->fp_stuff);
-
- /* Align to word at least */
- core_stacksec (abfd)->alignment_power = 2;
- core_datasec (abfd)->alignment_power = 2;
- core_regsec (abfd)->alignment_power = 2;
- core_reg2sec (abfd)->alignment_power = 2;
-
- abfd->sections = core_stacksec (abfd);
- core_stacksec (abfd)->next = core_datasec (abfd);
- core_datasec (abfd)->next = core_regsec (abfd);
- core_regsec (abfd)->next = core_reg2sec (abfd);
-
- abfd->section_count = 4;
-
- return abfd->xvec;
-}
+#define sunos_link_hash_lookup(table, string, create, copy, follow) \
+ ((struct sunos_link_hash_entry *) \
+ aout_link_hash_lookup (&(table)->root, (string), (create), (copy),\
+ (follow)))
-char *
-sunos4_core_file_failing_command (abfd)
- bfd *abfd;
-{
- return core_hdr (abfd)->c_cmdname;
-}
+/* Traverse a SunOS link hash table. */
-int
-sunos4_core_file_failing_signal (abfd)
- bfd *abfd;
-{
- return core_hdr (abfd)->c_signo;
-}
+#define sunos_link_hash_traverse(table, func, info) \
+ (aout_link_hash_traverse \
+ (&(table)->root, \
+ (bfd_boolean (*) (struct aout_link_hash_entry *, void *)) (func), \
+ (info)))
-boolean
-sunos4_core_file_matches_executable_p (core_bfd, exec_bfd)
- bfd *core_bfd, *exec_bfd;
-{
- if (core_bfd->xvec != exec_bfd->xvec) {
- bfd_error = system_call_error;
- return false;
- }
+/* Get the SunOS link hash table from the info structure. This is
+ just a cast. */
- return (bcmp ((char *)&core_hdr (core_bfd), (char*) &exec_hdr (exec_bfd),
- sizeof (struct exec)) == 0) ? true : false;
-}
+#define sunos_hash_table(p) ((struct sunos_link_hash_table *) ((p)->hash))
-/* byte-swap core structure */
-/* FIXME, this needs more work to swap IN a core struct from raw bytes */
-static void
-swapcore (abfd, core)
- bfd *abfd;
- struct core *core;
-{
- unsigned char exec_bytes[EXEC_BYTES_SIZE];
-
- core->c_magic = bfd_h_getlong (abfd, (unsigned char *)&core->c_magic);
- core->c_len = bfd_h_getlong (abfd, (unsigned char *)&core->c_len );
- /* Leave integer registers in target byte order. */
- bcopy ((char *)&(core->c_aouthdr), (char *)exec_bytes, EXEC_BYTES_SIZE);
- bfd_aout_swap_exec_header_in (abfd, exec_bytes, &core->c_aouthdr);
- core->c_signo = bfd_h_getlong (abfd, (unsigned char *)&core->c_signo);
- core->c_tsize = bfd_h_getlong (abfd, (unsigned char *)&core->c_tsize);
- core->c_dsize = bfd_h_getlong (abfd, (unsigned char *)&core->c_dsize);
- core->c_ssize = bfd_h_getlong (abfd, (unsigned char *)&core->c_ssize);
- /* Leave FP registers in target byte order. */
- /* Leave "c_ucode" unswapped for now, since we can't find it easily. */
-}
-\f
-/** exec and core file sections */
+/* Create the dynamic sections needed if we are linking against a
+ dynamic object, or if we are linking PIC compiled code. ABFD is a
+ bfd we can attach the dynamic sections to. The linker script will
+ look for these special sections names and put them in the right
+ place in the output file. See include/aout/sun4.h for more details
+ of the dynamic linking information. */
-boolean
-sunos4_new_section_hook (abfd, newsect)
- bfd *abfd;
- asection *newsect;
+static bfd_boolean
+sunos_create_dynamic_sections (bfd *abfd,
+ struct bfd_link_info *info,
+ bfd_boolean needed)
{
- /* align to double at least */
- newsect->alignment_power = 3;
+ asection *s;
- if (bfd_get_format (abfd) == bfd_object) {
- if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) {
- obj_textsec(abfd)= newsect;
- return true;
+ if (! sunos_hash_table (info)->dynamic_sections_created)
+ {
+ flagword flags;
+
+ sunos_hash_table (info)->dynobj = abfd;
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED);
+
+ /* The .dynamic section holds the basic dynamic information: the
+ sun4_dynamic structure, the dynamic debugger information, and
+ the sun4_dynamic_link structure. */
+ s = bfd_make_section_with_flags (abfd, ".dynamic", flags);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ /* The .got section holds the global offset table. The address
+ is put in the ld_got field. */
+ s = bfd_make_section_with_flags (abfd, ".got", flags);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ /* The .plt section holds the procedure linkage table. The
+ address is put in the ld_plt field. */
+ s = bfd_make_section_with_flags (abfd, ".plt", flags | SEC_CODE);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ /* The .dynrel section holds the dynamic relocs. The address is
+ put in the ld_rel field. */
+ s = bfd_make_section_with_flags (abfd, ".dynrel", flags | SEC_READONLY);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ /* The .hash section holds the dynamic hash table. The address
+ is put in the ld_hash field. */
+ s = bfd_make_section_with_flags (abfd, ".hash", flags | SEC_READONLY);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ /* The .dynsym section holds the dynamic symbols. The address
+ is put in the ld_stab field. */
+ s = bfd_make_section_with_flags (abfd, ".dynsym", flags | SEC_READONLY);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ /* The .dynstr section holds the dynamic symbol string table.
+ The address is put in the ld_symbols field. */
+ s = bfd_make_section_with_flags (abfd, ".dynstr", flags | SEC_READONLY);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ sunos_hash_table (info)->dynamic_sections_created = TRUE;
}
- if (obj_datasec(abfd) == NULL && !strcmp(newsect->name, ".data")) {
- obj_datasec(abfd) = newsect;
- return true;
- }
+ if ((needed && ! sunos_hash_table (info)->dynamic_sections_needed)
+ || info->shared)
+ {
+ bfd *dynobj;
+
+ dynobj = sunos_hash_table (info)->dynobj;
+
+ s = bfd_get_section_by_name (dynobj, ".got");
+ if (s->size == 0)
+ s->size = BYTES_IN_WORD;
- if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) {
- obj_bsssec(abfd) = newsect;
- return true;
+ sunos_hash_table (info)->dynamic_sections_needed = TRUE;
+ sunos_hash_table (info)->got_needed = TRUE;
}
- }
- /* We allow more than three sections internally */
- return true;
+ return TRUE;
}
-boolean
-sunos4_set_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- unsigned char *location;
- file_ptr offset;
- int count;
+/* Add dynamic symbols during a link. This is called by the a.out
+ backend linker for each object it encounters. */
+
+static bfd_boolean
+sunos_add_dynamic_symbols (bfd *abfd,
+ struct bfd_link_info *info,
+ struct external_nlist **symsp,
+ bfd_size_type *sym_countp,
+ char **stringsp)
{
- if (abfd->output_has_begun == false)
- { /* set by bfd.c handler */
- if ((obj_textsec (abfd) == NULL) || (obj_datasec (abfd) == NULL)
-
- /*||
- (obj_textsec (abfd)->size == 0) || (obj_datasec (abfd)->size=
- 0)*/
- )
- {
- bfd_error = invalid_operation;
- return false;
- }
+ bfd *dynobj;
+ struct sunos_dynamic_info *dinfo;
+ unsigned long need;
+ /* Make sure we have all the required sections. */
+ if (info->output_bfd->xvec == abfd->xvec)
+ {
+ if (! sunos_create_dynamic_sections (abfd, info,
+ ((abfd->flags & DYNAMIC) != 0
+ && !info->relocatable)))
+ return FALSE;
+ }
-#if 0
- if (abfd->flags & D_PAGED)
- {
- obj_textsec (abfd)->filepos = sizeof(struct exec);
- obj_datasec(abfd)->filepos = obj_textsec (abfd)->size;
- }
- else
-#endif
- {
- obj_textsec (abfd)->filepos = sizeof(struct exec);
- obj_datasec(abfd)->filepos = obj_textsec(abfd)->filepos + obj_textsec (abfd)->size;
+ /* There is nothing else to do for a normal object. */
+ if ((abfd->flags & DYNAMIC) == 0)
+ return TRUE;
+
+ dynobj = sunos_hash_table (info)->dynobj;
+
+ /* We do not want to include the sections in a dynamic object in the
+ output file. We hack by simply clobbering the list of sections
+ in the BFD. This could be handled more cleanly by, say, a new
+ section flag; the existing SEC_NEVER_LOAD flag is not the one we
+ want, because that one still implies that the section takes up
+ space in the output file. If this is the first object we have
+ seen, we must preserve the dynamic sections we just created. */
+ if (abfd != dynobj)
+ abfd->sections = NULL;
+ else
+ {
+ asection *s;
+ for (s = abfd->sections; s != NULL; s = s->next)
+ {
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
+ bfd_section_list_remove (abfd, s);
}
}
- /* regardless, once we know what we're doing, we might as well get going */
- bfd_seek (abfd, section->filepos + offset, SEEK_SET);
-
- if (count) {
- return (bfd_write ((void *)location, 1, count, abfd) == count) ?
- true : false;
- }
- return false;
-}
-boolean
-sunos4_get_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- void *location;
- file_ptr offset;
- int count;
-{
- if (count) {
- if (offset >= section->size) return false;
-
- bfd_seek (abfd, section->filepos + offset, SEEK_SET);
-
- return (bfd_read (location, 1, count, abfd) == count) ? true:false;
- }
- else return true;
-}
-
-\f
-/* Classify stabs symbols */
+ /* The native linker seems to just ignore dynamic objects when -r is
+ used. */
+ if (info->relocatable)
+ return TRUE;
+ /* There's no hope of using a dynamic object which does not exactly
+ match the format of the output file. */
+ if (info->output_bfd->xvec != abfd->xvec)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
-#define sym_in_text_section(sym) \
- (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_TEXT)
+ /* Make sure we have a .need and a .rules sections. These are only
+ needed if there really is a dynamic object in the link, so they
+ are not added by sunos_create_dynamic_sections. */
+ if (bfd_get_section_by_name (dynobj, ".need") == NULL)
+ {
+ /* The .need section holds the list of names of shared objets
+ which must be included at runtime. The address of this
+ section is put in the ld_need field. */
+ flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY | SEC_READONLY);
+ asection *s = bfd_make_section_with_flags (dynobj, ".need", flags);
+ if (s == NULL
+ || ! bfd_set_section_alignment (dynobj, s, 2))
+ return FALSE;
+ }
-#define sym_in_data_section(sym) \
- (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_DATA)
+ if (bfd_get_section_by_name (dynobj, ".rules") == NULL)
+ {
+ /* The .rules section holds the path to search for shared
+ objects. The address of this section is put in the ld_rules
+ field. */
+ flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY | SEC_READONLY);
+ asection *s = bfd_make_section_with_flags (dynobj, ".rules", flags);
+ if (s == NULL
+ || ! bfd_set_section_alignment (dynobj, s, 2))
+ return FALSE;
+ }
-#define sym_in_bss_section(sym) \
- (((sym)->n_type & (N_ABS | N_TEXT | N_DATA | N_BSS))== N_BSS)
+ /* Pick up the dynamic symbols and return them to the caller. */
+ if (! sunos_slurp_dynamic_symtab (abfd))
+ return FALSE;
-/* Symbol is undefined if type is N_UNDF|N_EXT and if it has
- zero in the "value" field. Nonzeroes there are fortrancommon
- symbols. */
-#define sym_is_undefined(sym) \
- ((sym)->n_type == (N_UNDF | N_EXT) && (sym)->n_value == 0)
+ dinfo = (struct sunos_dynamic_info *) obj_aout_dynamic_info (abfd);
+ *symsp = dinfo->dynsym;
+ *sym_countp = dinfo->dynsym_count;
+ *stringsp = dinfo->dynstr;
-/* Symbol is a global definition if N_EXT is on and if it has
- a nonzero type field. */
-#define sym_is_global_defn(sym) \
- (((sym)->n_type & N_EXT) && (sym)->n_type & N_TYPE)
+ /* Record information about any other objects needed by this one. */
+ need = dinfo->dyninfo.ld_need;
+ while (need != 0)
+ {
+ bfd_byte buf[16];
+ unsigned long name, flags;
+ unsigned short major_vno, minor_vno;
+ struct bfd_link_needed_list *needed, **pp;
+ char *namebuf, *p;
+ bfd_size_type alc;
+ bfd_byte b;
+ char *namecopy;
+
+ if (bfd_seek (abfd, (file_ptr) need, SEEK_SET) != 0
+ || bfd_bread (buf, (bfd_size_type) 16, abfd) != 16)
+ return FALSE;
+
+ /* For the format of an ld_need entry, see aout/sun4.h. We
+ should probably define structs for this manipulation. */
+ name = bfd_get_32 (abfd, buf);
+ flags = bfd_get_32 (abfd, buf + 4);
+ major_vno = (unsigned short) bfd_get_16 (abfd, buf + 8);
+ minor_vno = (unsigned short) bfd_get_16 (abfd, buf + 10);
+ need = bfd_get_32 (abfd, buf + 12);
+
+ alc = sizeof (struct bfd_link_needed_list);
+ needed = bfd_alloc (abfd, alc);
+ if (needed == NULL)
+ return FALSE;
+ needed->by = abfd;
+
+ /* We return the name as [-l]name[.maj][.min]. */
+ alc = 30;
+ namebuf = bfd_malloc (alc + 1);
+ if (namebuf == NULL)
+ return FALSE;
+ p = namebuf;
+
+ if ((flags & 0x80000000) != 0)
+ {
+ *p++ = '-';
+ *p++ = 'l';
+ }
+ if (bfd_seek (abfd, (file_ptr) name, SEEK_SET) != 0)
+ {
+ free (namebuf);
+ return FALSE;
+ }
-/* Symbol is debugger info if any bits outside N_TYPE or N_EXT
- are on. */
-#define sym_is_debugger_info(sym) \
- ((sym)->n_type & ~(N_EXT | N_TYPE))
+ do
+ {
+ if (bfd_bread (&b, (bfd_size_type) 1, abfd) != 1)
+ {
+ free (namebuf);
+ return FALSE;
+ }
+
+ if ((bfd_size_type) (p - namebuf) >= alc)
+ {
+ char *n;
+
+ alc *= 2;
+ n = bfd_realloc (namebuf, alc + 1);
+ if (n == NULL)
+ {
+ free (namebuf);
+ return FALSE;
+ }
+ p = n + (p - namebuf);
+ namebuf = n;
+ }
+
+ *p++ = b;
+ }
+ while (b != '\0');
-#define sym_is_fortrancommon(sym) \
- (((sym)->n_type == (N_EXT)) && (sym)->n_value != 0)
+ if (major_vno == 0)
+ *p = '\0';
+ else
+ {
+ char majbuf[30];
+ char minbuf[30];
+
+ sprintf (majbuf, ".%d", major_vno);
+ if (minor_vno == 0)
+ minbuf[0] = '\0';
+ else
+ sprintf (minbuf, ".%d", minor_vno);
+
+ if ((p - namebuf) + strlen (majbuf) + strlen (minbuf) >= alc)
+ {
+ char *n;
+
+ alc = (p - namebuf) + strlen (majbuf) + strlen (minbuf);
+ n = bfd_realloc (namebuf, alc + 1);
+ if (n == NULL)
+ {
+ free (namebuf);
+ return FALSE;
+ }
+ p = n + (p - namebuf);
+ namebuf = n;
+ }
+
+ strcpy (p, majbuf);
+ strcat (p, minbuf);
+ }
-/* Symbol is absolute if it has N_ABS set */
-#define sym_is_absolute(sym) \
- (((sym)->n_type & N_TYPE)== N_ABS)
+ namecopy = bfd_alloc (abfd, (bfd_size_type) strlen (namebuf) + 1);
+ if (namecopy == NULL)
+ {
+ free (namebuf);
+ return FALSE;
+ }
+ strcpy (namecopy, namebuf);
+ free (namebuf);
+ needed->name = namecopy;
+ needed->next = NULL;
-#define sym_is_indirect(sym) \
- (((sym)->n_type & N_ABS)== N_ABS)
+ for (pp = &sunos_hash_table (info)->needed;
+ *pp != NULL;
+ pp = &(*pp)->next)
+ ;
+ *pp = needed;
+ }
-/* Only in their own functions for ease of debugging; when sym flags have
- stabilised these should be inlined into their (single) caller */
+ return TRUE;
+}
-static void
-translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd)
- struct nlist *sym_pointer;
- aout_symbol_type *cache_ptr;
- bfd *abfd;
+/* Function to add a single symbol to the linker hash table. This is
+ a wrapper around _bfd_generic_link_add_one_symbol which handles the
+ tweaking needed for dynamic linking support. */
+
+static bfd_boolean
+sunos_add_one_symbol (struct bfd_link_info *info,
+ bfd *abfd,
+ const char *name,
+ flagword flags,
+ asection *section,
+ bfd_vma value,
+ const char *string,
+ bfd_boolean copy,
+ bfd_boolean collect,
+ struct bfd_link_hash_entry **hashp)
{
- switch (cache_ptr->type & N_TYPE) {
- case N_SETA:
- case N_SETT:
- case N_SETD:
- case N_SETB:
+ struct sunos_link_hash_entry *h;
+ int new_flag;
+
+ if ((flags & (BSF_INDIRECT | BSF_WARNING | BSF_CONSTRUCTOR)) != 0
+ || ! bfd_is_und_section (section))
+ h = sunos_link_hash_lookup (sunos_hash_table (info), name, TRUE, copy,
+ FALSE);
+ else
+ h = ((struct sunos_link_hash_entry *)
+ bfd_wrapped_link_hash_lookup (abfd, info, name, TRUE, copy, FALSE));
+ if (h == NULL)
+ return FALSE;
+
+ if (hashp != NULL)
+ *hashp = (struct bfd_link_hash_entry *) h;
+
+ /* Treat a common symbol in a dynamic object as defined in the .bss
+ section of the dynamic object. We don't want to allocate space
+ for it in our process image. */
+ if ((abfd->flags & DYNAMIC) != 0
+ && bfd_is_com_section (section))
+ section = obj_bsssec (abfd);
+
+ if (! bfd_is_und_section (section)
+ && h->root.root.type != bfd_link_hash_new
+ && h->root.root.type != bfd_link_hash_undefined
+ && h->root.root.type != bfd_link_hash_defweak)
{
- asection *section = bfd_make_section(abfd,
- cache_ptr->symbol.name);
- arelent_chain *reloc = (arelent_chain *)malloc(sizeof(arelent_chain));
-
- switch ( (cache_ptr->type & N_TYPE) ) {
- case N_SETA:
- reloc->relent.section = (asection *)NULL;
- cache_ptr->symbol.section = (asection *)NULL;
- break;
- case N_SETT:
- reloc->relent.section = (asection *)obj_textsec(abfd);
- cache_ptr->symbol.value -= reloc->relent.section->vma;
- break;
- case N_SETD:
- reloc->relent.section = (asection *)obj_datasec(abfd);
- cache_ptr->symbol.value -= reloc->relent.section->vma;
- break;
- case N_SETB:
- reloc->relent.section = (asection *)obj_bsssec(abfd);
- cache_ptr->symbol.value -= reloc->relent.section->vma;
- break;
- }
- cache_ptr->symbol.section = reloc->relent.section;
- reloc->relent.addend = cache_ptr->symbol.value ;
- /*
- We modify the symbol to belong to a section depending upon the
- name of the symbol - probably __CTOR__ or __DTOR__ but we don't
- really care, and add to the size of the section to contain a
- pointer to the symbol. Build a reloc entry to relocate to this
- symbol attached to this section.
- */
-
-
- section->flags = SEC_CONSTRUCTOR;
- section->reloc_count++;
- section->alignment_power = 2;
- reloc->relent.sym_ptr_ptr = (asymbol **)NULL;
- reloc->next = section->constructor_chain;
- section->constructor_chain = reloc;
- reloc->relent.address = section->size;
- section->size += sizeof(int *);
-
- reloc->relent.howto = howto_table_ext +CTOR_TABLE_RELOC_IDX;
- cache_ptr->symbol.flags |= BSF_DEBUGGING ;
- }
- break;
- default:
-
- if (sym_is_debugger_info (sym_pointer)) {
- cache_ptr->symbol.flags = BSF_DEBUGGING ;
- /* Work out the section correct for this symbol */
- switch (sym_pointer->n_type & N_TYPE)
+ /* We are defining the symbol, and it is already defined. This
+ is a potential multiple definition error. */
+ if ((abfd->flags & DYNAMIC) != 0)
{
- case N_TEXT:
- case N_FN:
- cache_ptr->symbol.section = obj_textsec (abfd);
- cache_ptr->symbol.value -= obj_textsec(abfd)->vma;
- break;
- case N_DATA:
- cache_ptr->symbol.value -= obj_datasec(abfd)->vma;
- cache_ptr->symbol.section = obj_datasec (abfd);
- break;
- case N_BSS :
- cache_ptr->symbol.section = obj_bsssec (abfd);
- cache_ptr->symbol.value -= obj_bsssec(abfd)->vma;
- break;
- case N_ABS:
- default:
- cache_ptr->symbol.section = 0;
- break;
+ /* The definition we are adding is from a dynamic object.
+ We do not want this new definition to override the
+ existing definition, so we pretend it is just a
+ reference. */
+ section = bfd_und_section_ptr;
}
- }
- else {
- if (sym_is_fortrancommon (sym_pointer))
+ else if (h->root.root.type == bfd_link_hash_defined
+ && h->root.root.u.def.section->owner != NULL
+ && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0)
{
- cache_ptr->symbol.flags = BSF_FORT_COMM;
- cache_ptr->symbol.section = (asection *)NULL;
+ /* The existing definition is from a dynamic object. We
+ want to override it with the definition we just found.
+ Clobber the existing definition. */
+ h->root.root.type = bfd_link_hash_undefined;
+ h->root.root.u.undef.abfd = h->root.root.u.def.section->owner;
}
- else {
- if (sym_is_undefined (sym_pointer)) {
- cache_ptr->symbol.flags = BSF_UNDEFINED;
- }
- else if (sym_is_global_defn (sym_pointer)) {
- cache_ptr->symbol.flags = BSF_GLOBAL | BSF_EXPORT;
+ else if (h->root.root.type == bfd_link_hash_common
+ && (h->root.root.u.c.p->section->owner->flags & DYNAMIC) != 0)
+ {
+ /* The existing definition is from a dynamic object. We
+ want to override it with the definition we just found.
+ Clobber the existing definition. We can't set it to new,
+ because it is on the undefined list. */
+ h->root.root.type = bfd_link_hash_undefined;
+ h->root.root.u.undef.abfd = h->root.root.u.c.p->section->owner;
}
+ }
- else if (sym_is_absolute (sym_pointer)) {
- cache_ptr->symbol.flags = BSF_ABSOLUTE;
+ if ((abfd->flags & DYNAMIC) != 0
+ && abfd->xvec == info->output_bfd->xvec
+ && (h->flags & SUNOS_CONSTRUCTOR) != 0)
+ /* The existing symbol is a constructor symbol, and this symbol
+ is from a dynamic object. A constructor symbol is actually a
+ definition, although the type will be bfd_link_hash_undefined
+ at this point. We want to ignore the definition from the
+ dynamic object. */
+ section = bfd_und_section_ptr;
+ else if ((flags & BSF_CONSTRUCTOR) != 0
+ && (abfd->flags & DYNAMIC) == 0
+ && h->root.root.type == bfd_link_hash_defined
+ && h->root.root.u.def.section->owner != NULL
+ && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0)
+ /* The existing symbol is defined by a dynamic object, and this
+ is a constructor symbol. As above, we want to force the use
+ of the constructor symbol from the regular object. */
+ h->root.root.type = bfd_link_hash_new;
+
+ /* Do the usual procedure for adding a symbol. */
+ if (! _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section,
+ value, string, copy, collect,
+ hashp))
+ return FALSE;
+
+ if (abfd->xvec == info->output_bfd->xvec)
+ {
+ /* Set a flag in the hash table entry indicating the type of
+ reference or definition we just found. Keep a count of the
+ number of dynamic symbols we find. A dynamic symbol is one
+ which is referenced or defined by both a regular object and a
+ shared object. */
+ if ((abfd->flags & DYNAMIC) == 0)
+ {
+ if (bfd_is_und_section (section))
+ new_flag = SUNOS_REF_REGULAR;
+ else
+ new_flag = SUNOS_DEF_REGULAR;
}
- else {
- cache_ptr->symbol.flags = BSF_LOCAL;
+ else
+ {
+ if (bfd_is_und_section (section))
+ new_flag = SUNOS_REF_DYNAMIC;
+ else
+ new_flag = SUNOS_DEF_DYNAMIC;
}
+ h->flags |= new_flag;
- /* In a.out, the value of a symbol is always relative to the
- * start of the file, if this is a data symbol we'll subtract
- * the size of the text section to get the section relative
- * value. If this is a bss symbol (which would be strange)
- * we'll subtract the size of the previous two sections
- * to find the section relative address.
- */
-
- if (sym_in_text_section (sym_pointer)) {
- cache_ptr->symbol.value -= obj_textsec(abfd)->vma;
- cache_ptr->symbol.section = obj_textsec (abfd);
- }
- else if (sym_in_data_section (sym_pointer)){
- cache_ptr->symbol.value -= obj_datasec(abfd)->vma;
- cache_ptr->symbol.section = obj_datasec (abfd);
- }
- else if (sym_in_bss_section(sym_pointer)) {
- cache_ptr->symbol.section = obj_bsssec (abfd);
- cache_ptr->symbol.value -= obj_bsssec(abfd)->vma;
- }
- else {
- cache_ptr->symbol.section = (asection *)NULL;
- cache_ptr->symbol.flags |= BSF_ABSOLUTE;
+ if (h->dynindx == -1
+ && (h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0)
+ {
+ ++sunos_hash_table (info)->dynsymcount;
+ h->dynindx = -2;
}
- }
- }
- }
-}
-
-void
-translate_to_native_sym_flags (sym_pointer, cache_ptr_g, abfd)
- struct nlist *sym_pointer;
- generic_symbol_type *cache_ptr_g;
- bfd *abfd;
-{
- asymbol *cache_ptr = (asymbol *)cache_ptr_g;
- /* FIXME check for wrigin bss */
- if (bfd_get_section(cache_ptr)) {
- if (bfd_get_output_section(cache_ptr) == obj_bsssec (abfd)) {
- sym_pointer->n_type |= N_BSS;
- }
- else if (bfd_get_output_section(cache_ptr) == obj_datasec (abfd)) {
- sym_pointer->n_type |= N_DATA;
+ if ((flags & BSF_CONSTRUCTOR) != 0
+ && (abfd->flags & DYNAMIC) == 0)
+ h->flags |= SUNOS_CONSTRUCTOR;
}
- else if (bfd_get_output_section(cache_ptr) == obj_textsec (abfd)) {
- sym_pointer->n_type |= N_TEXT;
- }
- else {
- bfd_error_trap(bfd_error_nonrepresentable_section,
- bfd_get_output_section(cache_ptr)->name);
- }
- /* Turn the symbol from section relative to absolute again */
- sym_pointer->n_value +=
- cache_ptr->section->output_section->vma
- + cache_ptr->section->output_offset ;
- }
- else {
- sym_pointer->n_type |= N_ABS;
- }
+ return TRUE;
+}
- if (cache_ptr->flags & (BSF_FORT_COMM | BSF_UNDEFINED)) {
- sym_pointer->n_type = (N_UNDF | N_EXT);
- return;
- }
+extern const bfd_target MY (vec);
- if (cache_ptr->flags & BSF_ABSOLUTE) {
- sym_pointer->n_type |= N_ABS;
- }
+/* Return the list of objects needed by BFD. */
- if (cache_ptr->flags & (BSF_GLOBAL | BSF_EXPORT)) {
- sym_pointer->n_type |= N_EXT;
- }
- if (cache_ptr->flags & BSF_DEBUGGING) {
- sym_pointer->n_type = ((aout_symbol_type *)cache_ptr)->type;
- }
-
+struct bfd_link_needed_list *
+bfd_sunos_get_needed_list (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
+{
+ if (info->output_bfd->xvec != &MY (vec))
+ return NULL;
+ return sunos_hash_table (info)->needed;
}
-\f
-/* Native-level interface to symbols. */
-/* We read the symbols into a buffer, which is discarded when this
- function exits. We read the strings into a buffer large enough to
- hold them all plus all the cached symbol entries. */
+/* Record an assignment made to a symbol by a linker script. We need
+ this in case some dynamic object refers to this symbol. */
-asymbol *
-sunos4_make_empty_symbol (abfd)
-bfd *abfd;
+bfd_boolean
+bfd_sunos_record_link_assignment (bfd *output_bfd,
+ struct bfd_link_info *info,
+ const char *name)
{
- aout_symbol_type *new =
- (aout_symbol_type *)zalloc (sizeof (aout_symbol_type));
- new->symbol.the_bfd = abfd;
+ struct sunos_link_hash_entry *h;
+
+ if (output_bfd->xvec != &MY(vec))
+ return TRUE;
+
+ /* This is called after we have examined all the input objects. If
+ the symbol does not exist, it merely means that no object refers
+ to it, and we can just ignore it at this point. */
+ h = sunos_link_hash_lookup (sunos_hash_table (info), name,
+ FALSE, FALSE, FALSE);
+ if (h == NULL)
+ return TRUE;
+
+ /* In a shared library, the __DYNAMIC symbol does not appear in the
+ dynamic symbol table. */
+ if (! info->shared || strcmp (name, "__DYNAMIC") != 0)
+ {
+ h->flags |= SUNOS_DEF_REGULAR;
+
+ if (h->dynindx == -1)
+ {
+ ++sunos_hash_table (info)->dynsymcount;
+ h->dynindx = -2;
+ }
+ }
- return &new->symbol;
+ return TRUE;
}
-boolean
-sunos4_slurp_symbol_table (abfd)
- bfd *abfd;
+/* Scan the relocs for an input section using standard relocs. We
+ need to figure out what to do for each reloc against a dynamic
+ symbol. If the symbol is in the .text section, an entry is made in
+ the procedure linkage table. Note that this will do the wrong
+ thing if the symbol is actually data; I don't think the Sun 3
+ native linker handles this case correctly either. If the symbol is
+ not in the .text section, we must preserve the reloc as a dynamic
+ reloc. FIXME: We should also handle the PIC relocs here by
+ building global offset table entries. */
+
+static bfd_boolean
+sunos_scan_std_relocs (struct bfd_link_info *info,
+ bfd *abfd,
+ asection *sec ATTRIBUTE_UNUSED,
+ const struct reloc_std_external *relocs,
+ bfd_size_type rel_size)
{
- unsigned int symbol_count;
- size_t symbol_size;
- size_t string_size;
- struct nlist *syms;
- char *strings;
- aout_symbol_type *cached;
-
- /* If there's no work to be done, don't do any */
- if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true;
- symbol_size = exec_hdr(abfd)->a_syms;
- if (symbol_size == 0) {
- bfd_error = no_symbols;
- return false;
- }
-
- bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET);
- if (bfd_read ((void *)&string_size, 4, 1, abfd) != 4)
- return false;
- string_size = bfd_h_getlong (abfd, (unsigned char *)&string_size);
-
- symbol_count = symbol_size / sizeof (struct nlist);
-
- /* Malloc (should alloca) space for native symbols, and
- malloc space for string table and symbol cache. */
-
- syms = (struct nlist *) zalloc (symbol_size);
- if (syms == NULL) {
- bfd_error = no_memory;
- return false;
- }
+ bfd *dynobj;
+ asection *splt = NULL;
+ asection *srel = NULL;
+ struct sunos_link_hash_entry **sym_hashes;
+ const struct reloc_std_external *rel, *relend;
+
+ /* We only know how to handle m68k plt entries. */
+ if (bfd_get_arch (abfd) != bfd_arch_m68k)
+ {
+ bfd_set_error (bfd_error_invalid_target);
+ return FALSE;
+ }
- cached = (aout_symbol_type *) zalloc ((size_t)(string_size + 1 +
- (symbol_count * sizeof (aout_symbol_type))));
- if (cached == NULL) {
- bfd_error = no_memory;
- free ((void *)syms);
- return false;
- }
+ dynobj = NULL;
- strings = ((char *) cached) + (symbol_count * sizeof (aout_symbol_type));
+ sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd);
- bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET);
- if (bfd_read ((void *)syms, 1, symbol_size, abfd) != symbol_size) {
- bailout:
- free ((void *)cached);
- free ((void*)syms);
- return false;
- }
+ relend = relocs + rel_size / RELOC_STD_SIZE;
+ for (rel = relocs; rel < relend; rel++)
+ {
+ int r_index;
+ struct sunos_link_hash_entry *h;
- bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET);
- if (bfd_read ((void *)strings, 1, string_size, abfd) != string_size) {
- goto bailout;
- }
+ /* We only want relocs against external symbols. */
+ if (bfd_header_big_endian (abfd))
+ {
+ if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG) == 0)
+ continue;
+ }
+ else
+ {
+ if ((rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE) == 0)
+ continue;
+ }
- /* OK, now walk the new symtable, cacheing symbol properties */
- {
- register struct nlist *sym_pointer;
- register struct nlist *sym_end = syms + symbol_count;
- register aout_symbol_type *cache_ptr = cached;
-
- if (bfd_header_twiddle_required (abfd) == true) {
- /* run through the table and byte swap if needed */
- for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++) {
- sym_pointer->n_un.n_strx =
- bfd_h_get_x (abfd, &sym_pointer->n_un.n_strx);
- sym_pointer->n_desc =
- bfd_h_get_x (abfd, &sym_pointer->n_desc);
- sym_pointer->n_value =
- bfd_h_get_x (abfd, &sym_pointer->n_value);
- sym_pointer->n_other = (char)
- bfd_h_get_x(abfd, &sym_pointer->n_other);
- sym_pointer->n_type = (char)
- bfd_h_get_x(abfd, &sym_pointer->n_type);
+ /* Get the symbol index. */
+ if (bfd_header_big_endian (abfd))
+ r_index = ((rel->r_index[0] << 16)
+ | (rel->r_index[1] << 8)
+ | rel->r_index[2]);
+ else
+ r_index = ((rel->r_index[2] << 16)
+ | (rel->r_index[1] << 8)
+ | rel->r_index[0]);
+
+ /* Get the hash table entry. */
+ h = sym_hashes[r_index];
+ if (h == NULL)
+ /* This should not normally happen, but it will in any case
+ be caught in the relocation phase. */
+ continue;
+
+ /* At this point common symbols have already been allocated, so
+ we don't have to worry about them. We need to consider that
+ we may have already seen this symbol and marked it undefined;
+ if the symbol is really undefined, then SUNOS_DEF_DYNAMIC
+ will be zero. */
+ if (h->root.root.type != bfd_link_hash_defined
+ && h->root.root.type != bfd_link_hash_defweak
+ && h->root.root.type != bfd_link_hash_undefined)
+ continue;
+
+ if ((h->flags & SUNOS_DEF_DYNAMIC) == 0
+ || (h->flags & SUNOS_DEF_REGULAR) != 0)
+ continue;
+
+ if (dynobj == NULL)
+ {
+ asection *sgot;
+
+ if (! sunos_create_dynamic_sections (abfd, info, FALSE))
+ return FALSE;
+ dynobj = sunos_hash_table (info)->dynobj;
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ srel = bfd_get_section_by_name (dynobj, ".dynrel");
+ BFD_ASSERT (splt != NULL && srel != NULL);
+
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (sgot != NULL);
+ if (sgot->size == 0)
+ sgot->size = BYTES_IN_WORD;
+ sunos_hash_table (info)->got_needed = TRUE;
+ }
- }
+ BFD_ASSERT ((h->flags & SUNOS_REF_REGULAR) != 0);
+ BFD_ASSERT (h->plt_offset != 0
+ || ((h->root.root.type == bfd_link_hash_defined
+ || h->root.root.type == bfd_link_hash_defweak)
+ ? (h->root.root.u.def.section->owner->flags
+ & DYNAMIC) != 0
+ : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0));
+
+ /* This reloc is against a symbol defined only by a dynamic
+ object. */
+ if (h->root.root.type == bfd_link_hash_undefined)
+ /* Presumably this symbol was marked as being undefined by
+ an earlier reloc. */
+ srel->size += RELOC_STD_SIZE;
+ else if ((h->root.root.u.def.section->flags & SEC_CODE) == 0)
+ {
+ bfd *sub;
+
+ /* This reloc is not in the .text section. It must be
+ copied into the dynamic relocs. We mark the symbol as
+ being undefined. */
+ srel->size += RELOC_STD_SIZE;
+ sub = h->root.root.u.def.section->owner;
+ h->root.root.type = bfd_link_hash_undefined;
+ h->root.root.u.undef.abfd = sub;
+ }
+ else
+ {
+ /* This symbol is in the .text section. We must give it an
+ entry in the procedure linkage table, if we have not
+ already done so. We change the definition of the symbol
+ to the .plt section; this will cause relocs against it to
+ be handled correctly. */
+ if (h->plt_offset == 0)
+ {
+ if (splt->size == 0)
+ splt->size = M68K_PLT_ENTRY_SIZE;
+ h->plt_offset = splt->size;
+
+ if ((h->flags & SUNOS_DEF_REGULAR) == 0)
+ {
+ h->root.root.u.def.section = splt;
+ h->root.root.u.def.value = splt->size;
+ }
+
+ splt->size += M68K_PLT_ENTRY_SIZE;
+
+ /* We may also need a dynamic reloc entry. */
+ if ((h->flags & SUNOS_DEF_REGULAR) == 0)
+ srel->size += RELOC_STD_SIZE;
+ }
+ }
}
- /* Run through table and copy values */
- for (sym_pointer = syms, cache_ptr = cached;
- sym_pointer < sym_end; sym_pointer++, cache_ptr++)
- {
- cache_ptr->symbol.the_bfd = abfd;
- if (sym_pointer->n_un.n_strx)
- cache_ptr->symbol.name = sym_pointer->n_un.n_strx + strings;
- else
- cache_ptr->symbol.name = (char *)NULL;
- cache_ptr->symbol.value = sym_pointer->n_value;
- cache_ptr->desc = sym_pointer->n_desc;
- cache_ptr->other = sym_pointer->n_other;
- cache_ptr->type = sym_pointer->n_type;
- cache_ptr->symbol.udata = 0;
- translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd);
-
- }
- }
- obj_aout_symbols (abfd) = cached;
- bfd_get_symcount (abfd) = symbol_count;
- free ((void *)syms);
-
- return true;
+ return TRUE;
}
-\f
-void
-sunos4_write_syms (abfd)
- bfd *abfd;
+/* Scan the relocs for an input section using extended relocs. We
+ need to figure out what to do for each reloc against a dynamic
+ symbol. If the reloc is a WDISP30, and the symbol is in the .text
+ section, an entry is made in the procedure linkage table.
+ Otherwise, we must preserve the reloc as a dynamic reloc. */
+
+static bfd_boolean
+sunos_scan_ext_relocs (struct bfd_link_info *info,
+ bfd *abfd,
+ asection *sec ATTRIBUTE_UNUSED,
+ const struct reloc_ext_external *relocs,
+ bfd_size_type rel_size)
{
- unsigned int count ;
- asymbol **generic = bfd_get_outsymbols (abfd);
-
- unsigned int stindex = sizeof(stindex); /* initial string length */
-
- for (count = 0; count < bfd_get_symcount (abfd); count++) {
- asymbol *g = generic[count];
- struct nlist nsp;
-
- if (g->name) {
- unsigned int length = strlen(g->name) +1;
- bfd_h_putlong (abfd, stindex, (unsigned char *)&nsp.n_un.n_strx);
- stindex += length;
- }
- else {
- bfd_h_putlong (abfd, 0, (unsigned char *)&nsp.n_un.n_strx);
+ bfd *dynobj;
+ struct sunos_link_hash_entry **sym_hashes;
+ const struct reloc_ext_external *rel, *relend;
+ asection *splt = NULL;
+ asection *sgot = NULL;
+ asection *srel = NULL;
+ bfd_size_type amt;
+
+ /* We only know how to handle SPARC plt entries. */
+ if (bfd_get_arch (abfd) != bfd_arch_sparc)
+ {
+ bfd_set_error (bfd_error_invalid_target);
+ return FALSE;
}
- if (g->the_bfd->xvec->flavour == abfd->xvec->flavour)
- {
- nsp.n_desc = aout_symbol( g)->desc;
- nsp.n_other = aout_symbol(g)->other;
- nsp.n_type = aout_symbol(g)->type;
- }
- else
- {
- nsp.n_desc = 0;
- nsp.n_other = 0;
- nsp.n_type = 0;
- }
-
+ dynobj = NULL;
- nsp.n_value = g->value;
- translate_to_native_sym_flags (&nsp, (generic_symbol_type *)g, abfd);
+ sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd);
+ relend = relocs + rel_size / RELOC_EXT_SIZE;
+ for (rel = relocs; rel < relend; rel++)
+ {
+ unsigned int r_index;
+ int r_extern;
+ int r_type;
+ struct sunos_link_hash_entry *h = NULL;
- bfd_h_putshort (abfd, nsp.n_desc, (unsigned char *)&nsp.n_desc);
- bfd_h_putlong (abfd, nsp.n_value, (unsigned char *)&nsp.n_value);
- bfd_write((void *)&nsp,1, sizeof(nsp), abfd);
- }
+ /* Swap in the reloc information. */
+ if (bfd_header_big_endian (abfd))
+ {
+ r_index = ((rel->r_index[0] << 16)
+ | (rel->r_index[1] << 8)
+ | rel->r_index[2]);
+ r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
+ r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
+ >> RELOC_EXT_BITS_TYPE_SH_BIG);
+ }
+ else
+ {
+ r_index = ((rel->r_index[2] << 16)
+ | (rel->r_index[1] << 8)
+ | rel->r_index[0]);
+ r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
+ r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
+ >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
+ }
+ if (r_extern)
+ {
+ h = sym_hashes[r_index];
+ if (h == NULL)
+ {
+ /* This should not normally happen, but it will in any
+ case be caught in the relocation phase. */
+ continue;
+ }
+ }
- /* Now output the strings. Be sure to put string length into correct
- * byte ordering before writing it.
- */
- bfd_h_putlong (abfd, stindex, (unsigned char *)&stindex);
+ /* If this is a base relative reloc, we need to make an entry in
+ the .got section. */
+ if (r_type == RELOC_BASE10
+ || r_type == RELOC_BASE13
+ || r_type == RELOC_BASE22)
+ {
+ if (dynobj == NULL)
+ {
+ if (! sunos_create_dynamic_sections (abfd, info, FALSE))
+ return FALSE;
+ dynobj = sunos_hash_table (info)->dynobj;
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ srel = bfd_get_section_by_name (dynobj, ".dynrel");
+ BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
+
+ /* Make sure we have an initial entry in the .got table. */
+ if (sgot->size == 0)
+ sgot->size = BYTES_IN_WORD;
+ sunos_hash_table (info)->got_needed = TRUE;
+ }
+
+ if (r_extern)
+ {
+ if (h->got_offset != 0)
+ continue;
+
+ h->got_offset = sgot->size;
+ }
+ else
+ {
+ if (r_index >= bfd_get_symcount (abfd))
+ /* This is abnormal, but should be caught in the
+ relocation phase. */
+ continue;
+
+ if (adata (abfd).local_got_offsets == NULL)
+ {
+ amt = bfd_get_symcount (abfd);
+ amt *= sizeof (bfd_vma);
+ adata (abfd).local_got_offsets = bfd_zalloc (abfd, amt);
+ if (adata (abfd).local_got_offsets == NULL)
+ return FALSE;
+ }
+
+ if (adata (abfd).local_got_offsets[r_index] != 0)
+ continue;
+
+ adata (abfd).local_got_offsets[r_index] = sgot->size;
+ }
+
+ sgot->size += BYTES_IN_WORD;
+
+ /* If we are making a shared library, or if the symbol is
+ defined by a dynamic object, we will need a dynamic reloc
+ entry. */
+ if (info->shared
+ || (h != NULL
+ && (h->flags & SUNOS_DEF_DYNAMIC) != 0
+ && (h->flags & SUNOS_DEF_REGULAR) == 0))
+ srel->size += RELOC_EXT_SIZE;
+
+ continue;
+ }
- bfd_write((void *)&stindex, 1, sizeof(stindex), abfd);
-
- generic = bfd_get_outsymbols(abfd);
- for (count = 0; count < bfd_get_symcount(abfd); count++)
- {
- asymbol *g = *(generic++);
+ /* Otherwise, we are only interested in relocs against symbols
+ defined in dynamic objects but not in regular objects. We
+ only need to consider relocs against external symbols. */
+ if (! r_extern)
+ {
+ /* But, if we are creating a shared library, we need to
+ generate an absolute reloc. */
+ if (info->shared)
+ {
+ if (dynobj == NULL)
+ {
+ if (! sunos_create_dynamic_sections (abfd, info, TRUE))
+ return FALSE;
+ dynobj = sunos_hash_table (info)->dynobj;
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ srel = bfd_get_section_by_name (dynobj, ".dynrel");
+ BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
+ }
+
+ srel->size += RELOC_EXT_SIZE;
+ }
+
+ continue;
+ }
- if (g->name != (char *)NULL)
+ /* At this point common symbols have already been allocated, so
+ we don't have to worry about them. We need to consider that
+ we may have already seen this symbol and marked it undefined;
+ if the symbol is really undefined, then SUNOS_DEF_DYNAMIC
+ will be zero. */
+ if (h->root.root.type != bfd_link_hash_defined
+ && h->root.root.type != bfd_link_hash_defweak
+ && h->root.root.type != bfd_link_hash_undefined)
+ continue;
+
+ if (r_type != RELOC_JMP_TBL
+ && ! info->shared
+ && ((h->flags & SUNOS_DEF_DYNAMIC) == 0
+ || (h->flags & SUNOS_DEF_REGULAR) != 0))
+ continue;
+
+ if (r_type == RELOC_JMP_TBL
+ && ! info->shared
+ && (h->flags & SUNOS_DEF_DYNAMIC) == 0
+ && (h->flags & SUNOS_DEF_REGULAR) == 0)
{
- size_t length = strlen(g->name)+1;
- bfd_write((void *)g->name, 1, length, abfd);
+ /* This symbol is apparently undefined. Don't do anything
+ here; just let the relocation routine report an undefined
+ symbol. */
+ continue;
}
- if ((g->flags & BSF_FAKE)==0) {
- g->name = itos(count); /* smash the generic symbol */
- }
- }
-}
-\f
-void
-sunos4_reclaim_symbol_table (abfd)
- bfd *abfd;
-{
- asection *section;
+ if (strcmp (h->root.root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
+ continue;
- if (!bfd_get_symcount (abfd)) return;
+ if (dynobj == NULL)
+ {
+ if (! sunos_create_dynamic_sections (abfd, info, FALSE))
+ return FALSE;
+ dynobj = sunos_hash_table (info)->dynobj;
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ srel = bfd_get_section_by_name (dynobj, ".dynrel");
+ BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
+
+ /* Make sure we have an initial entry in the .got table. */
+ if (sgot->size == 0)
+ sgot->size = BYTES_IN_WORD;
+ sunos_hash_table (info)->got_needed = TRUE;
+ }
- for (section = abfd->sections;
- section != (asection *) NULL;
- section = section->next)
- if (section->relocation) {
- free ((void *)section->relocation);
- section->relocation = NULL;
- section->reloc_count = 0;
+ BFD_ASSERT (r_type == RELOC_JMP_TBL
+ || info->shared
+ || (h->flags & SUNOS_REF_REGULAR) != 0);
+ BFD_ASSERT (r_type == RELOC_JMP_TBL
+ || info->shared
+ || h->plt_offset != 0
+ || ((h->root.root.type == bfd_link_hash_defined
+ || h->root.root.type == bfd_link_hash_defweak)
+ ? (h->root.root.u.def.section->owner->flags
+ & DYNAMIC) != 0
+ : (h->root.root.u.undef.abfd->flags & DYNAMIC) != 0));
+
+ /* This reloc is against a symbol defined only by a dynamic
+ object, or it is a jump table reloc from PIC compiled code. */
+
+ if (r_type != RELOC_JMP_TBL
+ && h->root.root.type == bfd_link_hash_undefined)
+ /* Presumably this symbol was marked as being undefined by
+ an earlier reloc. */
+ srel->size += RELOC_EXT_SIZE;
+
+ else if (r_type != RELOC_JMP_TBL
+ && (h->root.root.u.def.section->flags & SEC_CODE) == 0)
+ {
+ bfd *sub;
+
+ /* This reloc is not in the .text section. It must be
+ copied into the dynamic relocs. We mark the symbol as
+ being undefined. */
+ srel->size += RELOC_EXT_SIZE;
+ if ((h->flags & SUNOS_DEF_REGULAR) == 0)
+ {
+ sub = h->root.root.u.def.section->owner;
+ h->root.root.type = bfd_link_hash_undefined;
+ h->root.root.u.undef.abfd = sub;
+ }
+ }
+ else
+ {
+ /* This symbol is in the .text section. We must give it an
+ entry in the procedure linkage table, if we have not
+ already done so. We change the definition of the symbol
+ to the .plt section; this will cause relocs against it to
+ be handled correctly. */
+ if (h->plt_offset == 0)
+ {
+ if (splt->size == 0)
+ splt->size = SPARC_PLT_ENTRY_SIZE;
+ h->plt_offset = splt->size;
+
+ if ((h->flags & SUNOS_DEF_REGULAR) == 0)
+ {
+ if (h->root.root.type == bfd_link_hash_undefined)
+ h->root.root.type = bfd_link_hash_defined;
+ h->root.root.u.def.section = splt;
+ h->root.root.u.def.value = splt->size;
+ }
+
+ splt->size += SPARC_PLT_ENTRY_SIZE;
+
+ /* We will also need a dynamic reloc entry, unless this
+ is a JMP_TBL reloc produced by linking PIC compiled
+ code, and we are not making a shared library. */
+ if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0)
+ srel->size += RELOC_EXT_SIZE;
+ }
+
+ /* If we are creating a shared library, we need to copy over
+ any reloc other than a jump table reloc. */
+ if (info->shared && r_type != RELOC_JMP_TBL)
+ srel->size += RELOC_EXT_SIZE;
+ }
}
- bfd_get_symcount (abfd) = 0;
- free ((void *)obj_aout_symbols (abfd));
- obj_aout_symbols (abfd) = (aout_symbol_type *)NULL;
+ return TRUE;
}
-\f
-unsigned int
-sunos4_get_symtab_upper_bound (abfd)
- bfd *abfd;
-{
- if (!sunos4_slurp_symbol_table (abfd)) return 0;
- return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
-}
+/* Scan the relocs for an input section. */
-unsigned int
-sunos4_get_symtab (abfd, location)
- bfd *abfd;
- asymbol **location;
+static bfd_boolean
+sunos_scan_relocs (struct bfd_link_info *info,
+ bfd *abfd,
+ asection *sec,
+ bfd_size_type rel_size)
{
- unsigned int counter = 0;
- aout_symbol_type *symbase;
+ void * relocs;
+ void * free_relocs = NULL;
- if (!sunos4_slurp_symbol_table (abfd)) return 0;
+ if (rel_size == 0)
+ return TRUE;
- for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);)
- *(location++) = (asymbol *)( symbase++);
- *location++ =0;
- return bfd_get_symcount(abfd);
-}
-
-\f
-/* Obsolete procedural interface; better to look at the cache directly */
+ if (! info->keep_memory)
+ relocs = free_relocs = bfd_malloc (rel_size);
+ else
+ {
+ struct aout_section_data_struct *n;
+ bfd_size_type amt = sizeof (struct aout_section_data_struct);
-/* User should have checked the file flags; perhaps we should return
- BFD_NO_MORE_SYMBOLS if there are none? */
+ n = bfd_alloc (abfd, amt);
+ if (n == NULL)
+ relocs = NULL;
+ else
+ {
+ set_aout_section_data (sec, n);
+ relocs = bfd_malloc (rel_size);
+ aout_section_data (sec)->relocs = relocs;
+ }
+ }
+ if (relocs == NULL)
+ return FALSE;
-int
-sunos4_get_symcount_upper_bound (abfd)
- bfd *abfd;
-{
- /* In case we're doing an output file or something...? */
- if (bfd_get_symcount (abfd)) return bfd_get_symcount (abfd);
+ if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0
+ || bfd_bread (relocs, rel_size, abfd) != rel_size)
+ goto error_return;
- return (exec_hdr (abfd)->a_syms) / (sizeof (struct nlist));
-}
+ if (obj_reloc_entry_size (abfd) == RELOC_STD_SIZE)
+ {
+ if (! sunos_scan_std_relocs (info, abfd, sec,
+ (struct reloc_std_external *) relocs,
+ rel_size))
+ goto error_return;
+ }
+ else
+ {
+ if (! sunos_scan_ext_relocs (info, abfd, sec,
+ (struct reloc_ext_external *) relocs,
+ rel_size))
+ goto error_return;
+ }
-symindex
-sunos4_get_first_symbol (ignore_abfd)
- bfd * ignore_abfd;
-{
- return 0;
-}
+ if (free_relocs != NULL)
+ free (free_relocs);
-symindex
-sunos4_get_next_symbol (abfd, oidx)
- bfd *abfd;
- symindex oidx;
-{
- if (oidx == BFD_NO_MORE_SYMBOLS) return BFD_NO_MORE_SYMBOLS;
- return ++oidx >= bfd_get_symcount (abfd) ? BFD_NO_MORE_SYMBOLS : oidx;
-}
+ return TRUE;
-char *
-sunos4_symbol_name (abfd, idx)
- bfd *abfd;
- symindex idx;
-{
- return (obj_aout_symbols (abfd) + idx)->symbol.name;
+ error_return:
+ if (free_relocs != NULL)
+ free (free_relocs);
+ return FALSE;
}
-long
-sunos4_symbol_value (abfd, idx)
- bfd *abfd;
- symindex idx;
-{
- return (obj_aout_symbols (abfd) + idx)->symbol.value;
-}
+/* Build the hash table of dynamic symbols, and to mark as written all
+ symbols from dynamic objects which we do not plan to write out. */
-symclass
-sunos4_classify_symbol (abfd, idx)
- bfd *abfd;
- symindex idx;
+static bfd_boolean
+sunos_scan_dynamic_symbol (struct sunos_link_hash_entry *h, void * data)
{
- aout_symbol_type *sym = obj_aout_symbols (abfd) + idx;
+ struct bfd_link_info *info = (struct bfd_link_info *) data;
+
+ /* Set the written flag for symbols we do not want to write out as
+ part of the regular symbol table. This is all symbols which are
+ not defined in a regular object file. For some reason symbols
+ which are referenced by a regular object and defined by a dynamic
+ object do not seem to show up in the regular symbol table. It is
+ possible for a symbol to have only SUNOS_REF_REGULAR set here, it
+ is an undefined symbol which was turned into a common symbol
+ because it was found in an archive object which was not included
+ in the link. */
+ if ((h->flags & SUNOS_DEF_REGULAR) == 0
+ && (h->flags & SUNOS_DEF_DYNAMIC) != 0
+ && strcmp (h->root.root.root.string, "__DYNAMIC") != 0)
+ h->root.written = TRUE;
+
+ /* If this symbol is defined by a dynamic object and referenced by a
+ regular object, see whether we gave it a reasonable value while
+ scanning the relocs. */
+ if ((h->flags & SUNOS_DEF_REGULAR) == 0
+ && (h->flags & SUNOS_DEF_DYNAMIC) != 0
+ && (h->flags & SUNOS_REF_REGULAR) != 0)
+ {
+ if ((h->root.root.type == bfd_link_hash_defined
+ || h->root.root.type == bfd_link_hash_defweak)
+ && ((h->root.root.u.def.section->owner->flags & DYNAMIC) != 0)
+ && h->root.root.u.def.section->output_section == NULL)
+ {
+ bfd *sub;
+
+ /* This symbol is currently defined in a dynamic section
+ which is not being put into the output file. This
+ implies that there is no reloc against the symbol. I'm
+ not sure why this case would ever occur. In any case, we
+ change the symbol to be undefined. */
+ sub = h->root.root.u.def.section->owner;
+ h->root.root.type = bfd_link_hash_undefined;
+ h->root.root.u.undef.abfd = sub;
+ }
+ }
- if ((sym->symbol.flags & BSF_FORT_COMM) != 0) return bfd_symclass_fcommon;
- if ((sym->symbol.flags & BSF_GLOBAL) != 0) return bfd_symclass_global;
- if ((sym->symbol.flags & BSF_DEBUGGING) != 0) return bfd_symclass_debugger;
- if ((sym->symbol.flags & BSF_UNDEFINED) != 0) return bfd_symclass_undefined;
+ /* If this symbol is defined or referenced by a regular file, add it
+ to the dynamic symbols. */
+ if ((h->flags & (SUNOS_DEF_REGULAR | SUNOS_REF_REGULAR)) != 0)
+ {
+ asection *s;
+ size_t len;
+ bfd_byte *contents;
+ unsigned char *name;
+ unsigned long hash;
+ bfd *dynobj;
+
+ BFD_ASSERT (h->dynindx == -2);
+
+ dynobj = sunos_hash_table (info)->dynobj;
+
+ h->dynindx = sunos_hash_table (info)->dynsymcount;
+ ++sunos_hash_table (info)->dynsymcount;
+
+ len = strlen (h->root.root.root.string);
+
+ /* We don't bother to construct a BFD hash table for the strings
+ which are the names of the dynamic symbols. Using a hash
+ table for the regular symbols is beneficial, because the
+ regular symbols includes the debugging symbols, which have
+ long names and are often duplicated in several object files.
+ There are no debugging symbols in the dynamic symbols. */
+ s = bfd_get_section_by_name (dynobj, ".dynstr");
+ BFD_ASSERT (s != NULL);
+ contents = bfd_realloc (s->contents, s->size + len + 1);
+ if (contents == NULL)
+ return FALSE;
+ s->contents = contents;
+
+ h->dynstr_index = s->size;
+ strcpy ((char *) contents + s->size, h->root.root.root.string);
+ s->size += len + 1;
+
+ /* Add it to the dynamic hash table. */
+ name = (unsigned char *) h->root.root.root.string;
+ hash = 0;
+ while (*name != '\0')
+ hash = (hash << 1) + *name++;
+ hash &= 0x7fffffff;
+ hash %= sunos_hash_table (info)->bucketcount;
+
+ s = bfd_get_section_by_name (dynobj, ".hash");
+ BFD_ASSERT (s != NULL);
+
+ if (GET_SWORD (dynobj, s->contents + hash * HASH_ENTRY_SIZE) == -1)
+ PUT_WORD (dynobj, h->dynindx, s->contents + hash * HASH_ENTRY_SIZE);
+ else
+ {
+ bfd_vma next;
+
+ next = GET_WORD (dynobj,
+ (s->contents
+ + hash * HASH_ENTRY_SIZE
+ + BYTES_IN_WORD));
+ PUT_WORD (dynobj, s->size / HASH_ENTRY_SIZE,
+ s->contents + hash * HASH_ENTRY_SIZE + BYTES_IN_WORD);
+ PUT_WORD (dynobj, h->dynindx, s->contents + s->size);
+ PUT_WORD (dynobj, next, s->contents + s->size + BYTES_IN_WORD);
+ s->size += HASH_ENTRY_SIZE;
+ }
+ }
- return bfd_symclass_unknown;
+ return TRUE;
}
-boolean
-sunos4_symbol_hasclass (abfd, idx, class)
- bfd *abfd;
- symindex idx;
- symclass class;
-{
- aout_symbol_type *sym = obj_aout_symbols (abfd) + idx;
- switch (class) {
- case bfd_symclass_fcommon:
- return (sym->symbol.flags & BSF_FORT_COMM) ? true :false;
- case bfd_symclass_global:
- return (sym->symbol.flags & BSF_GLOBAL) ? true:false;
- case bfd_symclass_debugger:
- return (sym->symbol.flags & BSF_DEBUGGING) ? true:false;;
- case bfd_symclass_undefined:
- return (sym->symbol.flags & BSF_UNDEFINED) ? true:false;;
- default: return false;
- }
-}
-\f
-/* Standard reloc stuff */
-/* Output standard relocation information to a file in target byte order. */
-
-void
-swap_std_reloc_out (abfd, p, natptr, count)
- bfd *abfd;
- arelent **p; /* Generic relocation struct */
- struct reloc_std_bytes *natptr;
- unsigned int count;
+/* Set up the sizes and contents of the dynamic sections created in
+ sunos_add_dynamic_symbols. This is called by the SunOS linker
+ emulation before_allocation routine. We must set the sizes of the
+ sections before the linker sets the addresses of the various
+ sections. This unfortunately requires reading all the relocs so
+ that we can work out which ones need to become dynamic relocs. If
+ info->keep_memory is TRUE, we keep the relocs in memory; otherwise,
+ we discard them, and will read them again later. */
+
+bfd_boolean
+bfd_sunos_size_dynamic_sections (bfd *output_bfd,
+ struct bfd_link_info *info,
+ asection **sdynptr,
+ asection **sneedptr,
+ asection **srulesptr)
{
- int r_index;
- int r_extern;
- unsigned int r_length;
- int r_pcrel;
- int r_baserel, r_jmptable, r_relative;
- unsigned int r_addend;
- unsigned int idx;
- for (idx = 0; idx < count; idx++, p++, natptr++)
+ bfd *dynobj;
+ bfd_size_type dynsymcount;
+ struct sunos_link_hash_entry *h;
+ asection *s;
+ size_t bucketcount;
+ bfd_size_type hashalloc;
+ size_t i;
+ bfd *sub;
+
+ *sdynptr = NULL;
+ *sneedptr = NULL;
+ *srulesptr = NULL;
+
+ if (info->relocatable)
+ return TRUE;
+
+ if (output_bfd->xvec != &MY(vec))
+ return TRUE;
+
+ /* Look through all the input BFD's and read their relocs. It would
+ be better if we didn't have to do this, but there is no other way
+ to determine the number of dynamic relocs we need, and, more
+ importantly, there is no other way to know which symbols should
+ get an entry in the procedure linkage table. */
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
{
- arelent *g = *p;
- bfd_h_putlong (abfd, g->address, natptr->r_address);
-
- r_length = g->howto->size; /* Size as a power of two */
- r_pcrel = g->howto->pc_relative; /* Relative to PC? */
- /* r_baserel, r_jmptable, r_relative??? FIXME-soon */
- r_baserel = 0;
- r_jmptable = 0;
- r_relative = 0;
-
- r_addend = g->addend; /* Start here, see how it goes */
-
- /* name was clobbered by sunos4_write_syms to be symbol index */
-
- if (g->sym_ptr_ptr != NULL)
+ if ((sub->flags & DYNAMIC) == 0
+ && sub->xvec == output_bfd->xvec)
{
- if ((*(g->sym_ptr_ptr))->section) {
- /* put the section offset into the addend for output */
- r_addend += (*(g->sym_ptr_ptr))->section->vma;
- }
-
- r_index = stoi((*(g->sym_ptr_ptr))->name);
- r_extern = 1;
- }
- else {
- r_extern = 0;
- if (g->section == NULL) {
- BFD_ASSERT(0);
- r_index = N_ABS | N_EXT;
- }
- else if(g->section->output_section == obj_textsec(abfd)) {
- r_index = N_TEXT | N_EXT;
- r_addend += g->section->output_section->vma;
- }
- else if (g->section->output_section == obj_datasec(abfd)) {
- r_index = N_DATA | N_EXT;
- r_addend += g->section->output_section->vma;
+ if (! sunos_scan_relocs (info, sub, obj_textsec (sub),
+ exec_hdr (sub)->a_trsize)
+ || ! sunos_scan_relocs (info, sub, obj_datasec (sub),
+ exec_hdr (sub)->a_drsize))
+ return FALSE;
}
- else if (g->section->output_section == obj_bsssec(abfd)) {
- r_index = N_BSS | N_EXT ;
- r_addend += g->section->output_section->vma;
- }
- else {
- BFD_ASSERT(0);
- }
- }
-
- /* now the fun stuff */
- if (abfd->xvec->header_byteorder_big_p != false) {
- natptr->r_index[0] = r_index >> 16;
- natptr->r_index[1] = r_index >> 8;
- natptr->r_index[2] = r_index;
- natptr->r_bits[0] =
- (r_extern? RELOC_STD_BITS_EXTERN_BIG: 0)
- | (r_pcrel? RELOC_STD_BITS_PCREL_BIG: 0)
- | (r_baserel? RELOC_STD_BITS_BASEREL_BIG: 0)
- | (r_jmptable? RELOC_STD_BITS_JMPTABLE_BIG: 0)
- | (r_relative? RELOC_STD_BITS_RELATIVE_BIG: 0)
- | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG);
- } else {
- natptr->r_index[2] = r_index >> 16;
- natptr->r_index[1] = r_index >> 8;
- natptr->r_index[0] = r_index;
- natptr->r_bits[0] =
- (r_extern? RELOC_STD_BITS_EXTERN_LITTLE: 0)
- | (r_pcrel? RELOC_STD_BITS_PCREL_LITTLE: 0)
- | (r_baserel? RELOC_STD_BITS_BASEREL_LITTLE: 0)
- | (r_jmptable? RELOC_STD_BITS_JMPTABLE_LITTLE: 0)
- | (r_relative? RELOC_STD_BITS_RELATIVE_LITTLE: 0)
- | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE);
- }
-
-
}
-}
-
-/* Extended stuff */
-/* Output extended relocation information to a file in target byte order. */
+ dynobj = sunos_hash_table (info)->dynobj;
+ dynsymcount = sunos_hash_table (info)->dynsymcount;
-void
-swap_ext_reloc_out (abfd, p, natptr, count)
- bfd *abfd;
- arelent **p; /* Generic relocation struct */
- register struct reloc_ext_bytes *natptr;
- unsigned int count;
-{
+ /* If there were no dynamic objects in the link, and we don't need
+ to build a global offset table, there is nothing to do here. */
+ if (! sunos_hash_table (info)->dynamic_sections_needed
+ && ! sunos_hash_table (info)->got_needed)
+ return TRUE;
- int r_index;
- int r_extern;
- unsigned int r_type;
- unsigned int r_addend;
- unsigned int idx;
- for (idx = 0; idx < count; idx++, p++, natptr++) {
- arelent *g = *p;
+ /* If __GLOBAL_OFFSET_TABLE_ was mentioned, define it. */
+ h = sunos_link_hash_lookup (sunos_hash_table (info),
+ "__GLOBAL_OFFSET_TABLE_", FALSE, FALSE, FALSE);
+ if (h != NULL && (h->flags & SUNOS_REF_REGULAR) != 0)
+ {
+ h->flags |= SUNOS_DEF_REGULAR;
+ if (h->dynindx == -1)
+ {
+ ++sunos_hash_table (info)->dynsymcount;
+ h->dynindx = -2;
+ }
+ h->root.root.type = bfd_link_hash_defined;
+ h->root.root.u.def.section = bfd_get_section_by_name (dynobj, ".got");
+
+ /* If the .got section is more than 0x1000 bytes, we set
+ __GLOBAL_OFFSET_TABLE_ to be 0x1000 bytes into the section,
+ so that 13 bit relocations have a greater chance of working. */
+ s = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (s != NULL);
+ if (s->size >= 0x1000)
+ h->root.root.u.def.value = 0x1000;
+ else
+ h->root.root.u.def.value = 0;
+
+ sunos_hash_table (info)->got_base = h->root.root.u.def.value;
+ }
- bfd_h_putlong (abfd, g->address, natptr->r_address);
+ /* If there are any shared objects in the link, then we need to set
+ up the dynamic linking information. */
+ if (sunos_hash_table (info)->dynamic_sections_needed)
+ {
+ *sdynptr = bfd_get_section_by_name (dynobj, ".dynamic");
+
+ /* The .dynamic section is always the same size. */
+ s = *sdynptr;
+ BFD_ASSERT (s != NULL);
+ s->size = (sizeof (struct external_sun4_dynamic)
+ + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE
+ + sizeof (struct external_sun4_dynamic_link));
+
+ /* Set the size of the .dynsym and .hash sections. We counted
+ the number of dynamic symbols as we read the input files. We
+ will build the dynamic symbol table (.dynsym) and the hash
+ table (.hash) when we build the final symbol table, because
+ until then we do not know the correct value to give the
+ symbols. We build the dynamic symbol string table (.dynstr)
+ in a traversal of the symbol table using
+ sunos_scan_dynamic_symbol. */
+ s = bfd_get_section_by_name (dynobj, ".dynsym");
+ BFD_ASSERT (s != NULL);
+ s->size = dynsymcount * sizeof (struct external_nlist);
+ s->contents = bfd_alloc (output_bfd, s->size);
+ if (s->contents == NULL && s->size != 0)
+ return FALSE;
+
+ /* The number of buckets is just the number of symbols divided
+ by four. To compute the final size of the hash table, we
+ must actually compute the hash table. Normally we need
+ exactly as many entries in the hash table as there are
+ dynamic symbols, but if some of the buckets are not used we
+ will need additional entries. In the worst case, every
+ symbol will hash to the same bucket, and we will need
+ BUCKETCOUNT - 1 extra entries. */
+ if (dynsymcount >= 4)
+ bucketcount = dynsymcount / 4;
+ else if (dynsymcount > 0)
+ bucketcount = dynsymcount;
+ else
+ bucketcount = 1;
+ s = bfd_get_section_by_name (dynobj, ".hash");
+ BFD_ASSERT (s != NULL);
+ hashalloc = (dynsymcount + bucketcount - 1) * HASH_ENTRY_SIZE;
+ s->contents = bfd_zalloc (dynobj, hashalloc);
+ if (s->contents == NULL && dynsymcount > 0)
+ return FALSE;
+ for (i = 0; i < bucketcount; i++)
+ PUT_WORD (output_bfd, (bfd_vma) -1, s->contents + i * HASH_ENTRY_SIZE);
+ s->size = bucketcount * HASH_ENTRY_SIZE;
+
+ sunos_hash_table (info)->bucketcount = bucketcount;
+
+ /* Scan all the symbols, place them in the dynamic symbol table,
+ and build the dynamic hash table. We reuse dynsymcount as a
+ counter for the number of symbols we have added so far. */
+ sunos_hash_table (info)->dynsymcount = 0;
+ sunos_link_hash_traverse (sunos_hash_table (info),
+ sunos_scan_dynamic_symbol,
+ (void *) info);
+ BFD_ASSERT (sunos_hash_table (info)->dynsymcount == dynsymcount);
+
+ /* The SunOS native linker seems to align the total size of the
+ symbol strings to a multiple of 8. I don't know if this is
+ important, but it can't hurt much. */
+ s = bfd_get_section_by_name (dynobj, ".dynstr");
+ BFD_ASSERT (s != NULL);
+ if ((s->size & 7) != 0)
+ {
+ bfd_size_type add;
+ bfd_byte *contents;
+
+ add = 8 - (s->size & 7);
+ contents = bfd_realloc (s->contents, s->size + add);
+ if (contents == NULL)
+ return FALSE;
+ memset (contents + s->size, 0, (size_t) add);
+ s->contents = contents;
+ s->size += add;
+ }
+ }
- /* Find a type in the output format which matches the input howto -
- at the moment we assume input format == output format FIXME!! */
- r_type = (enum reloc_type) g->howto->type;
+ /* Now that we have worked out the sizes of the procedure linkage
+ table and the dynamic relocs, allocate storage for them. */
+ s = bfd_get_section_by_name (dynobj, ".plt");
+ BFD_ASSERT (s != NULL);
+ if (s->size != 0)
+ {
+ s->contents = bfd_alloc (dynobj, s->size);
+ if (s->contents == NULL)
+ return FALSE;
- r_addend = g->addend; /* Start here, see how it goes */
+ /* Fill in the first entry in the table. */
+ switch (bfd_get_arch (dynobj))
+ {
+ case bfd_arch_sparc:
+ memcpy (s->contents, sparc_plt_first_entry, SPARC_PLT_ENTRY_SIZE);
+ break;
- /* name was clobbered by sunos4_write_syms to be symbol index*/
+ case bfd_arch_m68k:
+ memcpy (s->contents, m68k_plt_first_entry, M68K_PLT_ENTRY_SIZE);
+ break;
- if (g->sym_ptr_ptr != NULL)
- {
- if ((*(g->sym_ptr_ptr))->section) {
- /* put the section offset into the addend for output */
- r_addend += (*(g->sym_ptr_ptr))->section->vma;
+ default:
+ abort ();
}
-
- r_index = stoi((*(g->sym_ptr_ptr))->name);
- r_extern = 1;
- }
- else {
- r_extern = 0;
- if (g->section == NULL) {
- BFD_ASSERT(0);
- r_index = N_ABS | N_EXT;
- }
- else if(g->section->output_section == obj_textsec(abfd)) {
- r_index = N_TEXT | N_EXT;
- r_addend += g->section->output_section->vma;
- }
- else if (g->section->output_section == obj_datasec(abfd)) {
- r_index = N_DATA | N_EXT;
- r_addend += g->section->output_section->vma;
- }
- else if (g->section->output_section == obj_bsssec(abfd)) {
- r_index = N_BSS | N_EXT ;
- r_addend += g->section->output_section->vma;
- }
- else {
- BFD_ASSERT(0);
- }
}
- /* now the fun stuff */
- if (abfd->xvec->header_byteorder_big_p != false) {
- natptr->r_index[0] = r_index >> 16;
- natptr->r_index[1] = r_index >> 8;
- natptr->r_index[2] = r_index;
- natptr->r_bits[0] =
- (r_extern? RELOC_EXT_BITS_EXTERN_BIG: 0)
- || (r_type << RELOC_EXT_BITS_TYPE_SH_BIG);
- } else {
- natptr->r_index[2] = r_index >> 16;
- natptr->r_index[1] = r_index >> 8;
- natptr->r_index[0] = r_index;
- natptr->r_bits[0] =
- (r_extern? RELOC_EXT_BITS_EXTERN_LITTLE: 0)
- || (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
+ s = bfd_get_section_by_name (dynobj, ".dynrel");
+ if (s->size != 0)
+ {
+ s->contents = bfd_alloc (dynobj, s->size);
+ if (s->contents == NULL)
+ return FALSE;
}
+ /* We use the reloc_count field to keep track of how many of the
+ relocs we have output so far. */
+ s->reloc_count = 0;
- bfd_h_putlong (abfd, r_addend, natptr->r_addend);
- }
-}
-#define MOVE_ADDRESS(ad) \
- if (r_extern) { \
- cache_ptr->sym_ptr_ptr = symbols + r_index; \
- cache_ptr->section = (asection *)NULL; \
- cache_ptr->addend = ad; \
- } else { \
- cache_ptr->sym_ptr_ptr = (asymbol **)NULL; \
- switch (r_index) { \
- case N_TEXT: \
- case N_TEXT | N_EXT: \
- cache_ptr->section = obj_textsec(abfd); \
- cache_ptr->addend = ad - su->textsec->vma; \
- break; \
- case N_DATA: \
- case N_DATA | N_EXT: \
- cache_ptr->section = obj_datasec(abfd); \
- cache_ptr->addend = ad - su->datasec->vma; \
- break; \
- case N_BSS: \
- case N_BSS | N_EXT: \
- cache_ptr->section = obj_bsssec(abfd); \
- cache_ptr->addend = ad - su->bsssec->vma; \
- break; \
- case N_ABS: \
- case N_ABS | N_EXT: \
- BFD_ASSERT(1); \
- break; \
- default: \
- BFD_ASSERT(1); \
- break; \
- } \
- } \
-
-void
-swap_ext_reloc_in (abfd, bytes, cache_ptr, symbols)
- bfd *abfd;
- struct reloc_ext_bytes *bytes;
- arelent *cache_ptr;
- asymbol **symbols;
-{
- int r_index;
- int r_extern;
- unsigned int r_type;
- struct sunexdata *su = (struct sunexdata *)(abfd->tdata);
-
- cache_ptr->address = bfd_h_getlong (abfd, bytes->r_address);
-
- /* now the fun stuff */
- if (abfd->xvec->header_byteorder_big_p != false) {
- r_index = (bytes->r_index[0] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[2];
- r_extern = (0 != (bytes->r_bits[0] & RELOC_EXT_BITS_EXTERN_BIG));
- r_type = (bytes->r_bits[0] & RELOC_EXT_BITS_TYPE_BIG)
- >> RELOC_EXT_BITS_TYPE_SH_BIG;
- } else {
- r_index = (bytes->r_index[2] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[0];
- r_extern = (0 != (bytes->r_bits[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
- r_type = (bytes->r_bits[0] & RELOC_EXT_BITS_TYPE_LITTLE)
- >> RELOC_EXT_BITS_TYPE_SH_LITTLE;
- }
+ /* Make space for the global offset table. */
+ s = bfd_get_section_by_name (dynobj, ".got");
+ s->contents = bfd_alloc (dynobj, s->size);
+ if (s->contents == NULL)
+ return FALSE;
- cache_ptr->howto = howto_table_ext + r_type;
- MOVE_ADDRESS(bfd_h_getlong(abfd,bytes->r_addend));
-
-}
+ *sneedptr = bfd_get_section_by_name (dynobj, ".need");
+ *srulesptr = bfd_get_section_by_name (dynobj, ".rules");
-void
-swap_std_reloc_in (abfd, bytes, cache_ptr, symbols)
- bfd *abfd;
- struct reloc_std_bytes *bytes;
- arelent *cache_ptr;
- asymbol **symbols;
-{
- int r_index;
- int r_extern;
- unsigned int r_length;
- int r_pcrel;
- int r_baserel, r_jmptable, r_relative;
- struct sunexdata *su = (struct sunexdata *)(abfd->tdata);
- cache_ptr->address = bfd_h_getlong (abfd, bytes->r_address);
-
- /* now the fun stuff */
- if (abfd->xvec->header_byteorder_big_p != false) {
- r_index = (bytes->r_index[0] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[2];
- r_extern = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_EXTERN_BIG));
- r_pcrel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_PCREL_BIG));
- r_baserel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_BASEREL_BIG));
- r_jmptable= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_JMPTABLE_BIG));
- r_relative= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_RELATIVE_BIG));
- r_length = (bytes->r_bits[0] & RELOC_STD_BITS_LENGTH_BIG)
- >> RELOC_STD_BITS_LENGTH_SH_BIG;
- } else {
- r_index = (bytes->r_index[2] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[0];
- r_extern = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_EXTERN_LITTLE));
- r_pcrel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_PCREL_LITTLE));
- r_baserel = (0 != (bytes->r_bits[0] & RELOC_STD_BITS_BASEREL_LITTLE));
- r_jmptable= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
- r_relative= (0 != (bytes->r_bits[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
- r_length = (bytes->r_bits[0] & RELOC_STD_BITS_LENGTH_LITTLE)
- >> RELOC_STD_BITS_LENGTH_SH_LITTLE;
- }
+ return TRUE;
+}
- cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel;
- /* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */
+/* Link a dynamic object. We actually don't have anything to do at
+ this point. This entry point exists to prevent the regular linker
+ code from doing anything with the object. */
- MOVE_ADDRESS(0);
+static bfd_boolean
+sunos_link_dynamic_object (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ bfd *abfd ATTRIBUTE_UNUSED)
+{
+ return TRUE;
}
-/* Reloc hackery */
+/* Write out a dynamic symbol. This is called by the final traversal
+ over the symbol table. */
-boolean
-sunos4_slurp_reloc_table (abfd, asect, symbols)
- bfd *abfd;
- sec_ptr asect;
- asymbol **symbols;
+static bfd_boolean
+sunos_write_dynamic_symbol (bfd *output_bfd,
+ struct bfd_link_info *info,
+ struct aout_link_hash_entry *harg)
{
- unsigned int count;
- size_t reloc_size;
- void *relocs;
- arelent *reloc_cache;
- size_t each_size;
+ struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg;
+ int type;
+ bfd_vma val;
+ asection *s;
+ struct external_nlist *outsym;
+
+ /* If this symbol is in the procedure linkage table, fill in the
+ table entry. */
+ if (h->plt_offset != 0)
+ {
+ bfd *dynobj;
+ asection *splt;
+ bfd_byte *p;
+ bfd_vma r_address;
- if (asect->relocation) return true;
+ dynobj = sunos_hash_table (info)->dynobj;
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ p = splt->contents + h->plt_offset;
- if (asect->flags & SEC_CONSTRUCTOR) return true;
+ s = bfd_get_section_by_name (dynobj, ".dynrel");
- if (asect == obj_datasec (abfd)) {
- reloc_size = exec_hdr(abfd)->a_drsize;
- goto doit;
- }
+ r_address = (splt->output_section->vma
+ + splt->output_offset
+ + h->plt_offset);
- if (asect == obj_textsec (abfd)) {
- reloc_size = exec_hdr(abfd)->a_trsize;
- goto doit;
- }
-
- bfd_error = invalid_operation;
- return false;
+ switch (bfd_get_arch (output_bfd))
+ {
+ case bfd_arch_sparc:
+ if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0)
+ {
+ bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD0, p);
+ bfd_put_32 (output_bfd,
+ (SPARC_PLT_ENTRY_WORD1
+ + (((- (h->plt_offset + 4) >> 2)
+ & 0x3fffffff))),
+ p + 4);
+ bfd_put_32 (output_bfd, SPARC_PLT_ENTRY_WORD2 + s->reloc_count,
+ p + 8);
+ }
+ else
+ {
+ val = (h->root.root.u.def.section->output_section->vma
+ + h->root.root.u.def.section->output_offset
+ + h->root.root.u.def.value);
+ bfd_put_32 (output_bfd,
+ SPARC_PLT_PIC_WORD0 + ((val >> 10) & 0x3fffff),
+ p);
+ bfd_put_32 (output_bfd,
+ SPARC_PLT_PIC_WORD1 + (val & 0x3ff),
+ p + 4);
+ bfd_put_32 (output_bfd, SPARC_PLT_PIC_WORD2, p + 8);
+ }
+ break;
- doit:
- bfd_seek (abfd, asect->rel_filepos, SEEK_SET);
- each_size = reloc_size_func(abfd);
+ case bfd_arch_m68k:
+ if (! info->shared && (h->flags & SUNOS_DEF_REGULAR) != 0)
+ abort ();
+ bfd_put_16 (output_bfd, M68K_PLT_ENTRY_WORD0, p);
+ bfd_put_32 (output_bfd, (- (h->plt_offset + 2)), p + 2);
+ bfd_put_16 (output_bfd, (bfd_vma) s->reloc_count, p + 6);
+ r_address += 2;
+ break;
- count = reloc_size / each_size;
+ default:
+ abort ();
+ }
- relocs = malloc (reloc_size);
- if (!relocs) {
- bfd_error = no_memory;
- return false;
- }
- reloc_cache = (arelent *) zalloc ((size_t)(count * sizeof (arelent)));
- if (reloc_cache == (arelent *)NULL) {
- free (relocs);
- bfd_error = no_memory;
- return false;
- }
+ /* We also need to add a jump table reloc, unless this is the
+ result of a JMP_TBL reloc from PIC compiled code. */
+ if (info->shared || (h->flags & SUNOS_DEF_REGULAR) == 0)
+ {
+ BFD_ASSERT (h->dynindx >= 0);
+ BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj)
+ < s->size);
+ p = s->contents + s->reloc_count * obj_reloc_entry_size (output_bfd);
+ if (obj_reloc_entry_size (output_bfd) == RELOC_STD_SIZE)
+ {
+ struct reloc_std_external *srel;
+
+ srel = (struct reloc_std_external *) p;
+ PUT_WORD (output_bfd, r_address, srel->r_address);
+ if (bfd_header_big_endian (output_bfd))
+ {
+ srel->r_index[0] = (bfd_byte) (h->dynindx >> 16);
+ srel->r_index[1] = (bfd_byte) (h->dynindx >> 8);
+ srel->r_index[2] = (bfd_byte) (h->dynindx);
+ srel->r_type[0] = (RELOC_STD_BITS_EXTERN_BIG
+ | RELOC_STD_BITS_JMPTABLE_BIG);
+ }
+ else
+ {
+ srel->r_index[2] = (bfd_byte) (h->dynindx >> 16);
+ srel->r_index[1] = (bfd_byte) (h->dynindx >> 8);
+ srel->r_index[0] = (bfd_byte)h->dynindx;
+ srel->r_type[0] = (RELOC_STD_BITS_EXTERN_LITTLE
+ | RELOC_STD_BITS_JMPTABLE_LITTLE);
+ }
+ }
+ else
+ {
+ struct reloc_ext_external *erel;
+
+ erel = (struct reloc_ext_external *) p;
+ PUT_WORD (output_bfd, r_address, erel->r_address);
+ if (bfd_header_big_endian (output_bfd))
+ {
+ erel->r_index[0] = (bfd_byte) (h->dynindx >> 16);
+ erel->r_index[1] = (bfd_byte) (h->dynindx >> 8);
+ erel->r_index[2] = (bfd_byte)h->dynindx;
+ erel->r_type[0] =
+ (RELOC_EXT_BITS_EXTERN_BIG
+ | (RELOC_JMP_SLOT << RELOC_EXT_BITS_TYPE_SH_BIG));
+ }
+ else
+ {
+ erel->r_index[2] = (bfd_byte) (h->dynindx >> 16);
+ erel->r_index[1] = (bfd_byte) (h->dynindx >> 8);
+ erel->r_index[0] = (bfd_byte)h->dynindx;
+ erel->r_type[0] =
+ (RELOC_EXT_BITS_EXTERN_LITTLE
+ | (RELOC_JMP_SLOT << RELOC_EXT_BITS_TYPE_SH_LITTLE));
+ }
+ PUT_WORD (output_bfd, (bfd_vma) 0, erel->r_addend);
+ }
+
+ ++s->reloc_count;
+ }
+ }
- if (bfd_read ( relocs, 1, reloc_size, abfd) != reloc_size) {
- bfd_error = system_call_error;
- free (reloc_cache);
- free (relocs);
- return false;
- }
+ /* If this is not a dynamic symbol, we don't have to do anything
+ else. We only check this after handling the PLT entry, because
+ we can have a PLT entry for a nondynamic symbol when linking PIC
+ compiled code from a regular object. */
+ if (h->dynindx < 0)
+ return TRUE;
- if (each_size == RELOC_EXT_SIZE)
+ switch (h->root.root.type)
{
- register struct reloc_ext_bytes *rptr = relocs;
- unsigned int counter = 0;
- arelent *cache_ptr = reloc_cache;
-
- for (; counter < count; counter++, rptr++, cache_ptr++) {
- swap_ext_reloc_in(abfd, rptr, cache_ptr, symbols);
+ default:
+ case bfd_link_hash_new:
+ abort ();
+ /* Avoid variable not initialized warnings. */
+ return TRUE;
+ case bfd_link_hash_undefined:
+ type = N_UNDF | N_EXT;
+ val = 0;
+ break;
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ {
+ asection *sec;
+ asection *output_section;
+
+ sec = h->root.root.u.def.section;
+ output_section = sec->output_section;
+ BFD_ASSERT (bfd_is_abs_section (output_section)
+ || output_section->owner == output_bfd);
+ if (h->plt_offset != 0
+ && (h->flags & SUNOS_DEF_REGULAR) == 0)
+ {
+ type = N_UNDF | N_EXT;
+ val = 0;
+ }
+ else
+ {
+ if (output_section == obj_textsec (output_bfd))
+ type = (h->root.root.type == bfd_link_hash_defined
+ ? N_TEXT
+ : N_WEAKT);
+ else if (output_section == obj_datasec (output_bfd))
+ type = (h->root.root.type == bfd_link_hash_defined
+ ? N_DATA
+ : N_WEAKD);
+ else if (output_section == obj_bsssec (output_bfd))
+ type = (h->root.root.type == bfd_link_hash_defined
+ ? N_BSS
+ : N_WEAKB);
+ else
+ type = (h->root.root.type == bfd_link_hash_defined
+ ? N_ABS
+ : N_WEAKA);
+ type |= N_EXT;
+ val = (h->root.root.u.def.value
+ + output_section->vma
+ + sec->output_offset);
+ }
}
+ break;
+ case bfd_link_hash_common:
+ type = N_UNDF | N_EXT;
+ val = h->root.root.u.c.size;
+ break;
+ case bfd_link_hash_undefweak:
+ type = N_WEAKU;
+ val = 0;
+ break;
+ case bfd_link_hash_indirect:
+ case bfd_link_hash_warning:
+ /* FIXME: Ignore these for now. The circumstances under which
+ they should be written out are not clear to me. */
+ return TRUE;
}
- else {
- register struct reloc_std_bytes *rptr = relocs;
- unsigned int counter = 0;
- arelent *cache_ptr = reloc_cache;
- for (; counter < count; counter++, rptr++, cache_ptr++) {
- swap_std_reloc_in(abfd, rptr, cache_ptr, symbols);
- }
+ s = bfd_get_section_by_name (sunos_hash_table (info)->dynobj, ".dynsym");
+ BFD_ASSERT (s != NULL);
+ outsym = ((struct external_nlist *)
+ (s->contents + h->dynindx * EXTERNAL_NLIST_SIZE));
- }
- free (relocs);
- asect->relocation = reloc_cache;
- asect->reloc_count = count;
- return true;
-}
+ H_PUT_8 (output_bfd, type, outsym->e_type);
+ H_PUT_8 (output_bfd, 0, outsym->e_other);
+ /* FIXME: The native linker doesn't use 0 for desc. It seems to use
+ one less than the desc value in the shared library, although that
+ seems unlikely. */
+ H_PUT_16 (output_bfd, 0, outsym->e_desc);
+ PUT_WORD (output_bfd, h->dynstr_index, outsym->e_strx);
+ PUT_WORD (output_bfd, val, outsym->e_value);
-/* Write out a relocation section into an object file. */
+ return TRUE;
+}
-static boolean
-sunos4_squirt_out_relocs (abfd, section)
- bfd *abfd;
- asection *section;
+/* This is called for each reloc against an external symbol. If this
+ is a reloc which are are going to copy as a dynamic reloc, then
+ copy it over, and tell the caller to not bother processing this
+ reloc. */
+
+static bfd_boolean
+sunos_check_dynamic_reloc (struct bfd_link_info *info,
+ bfd *input_bfd,
+ asection *input_section,
+ struct aout_link_hash_entry *harg,
+ void * reloc,
+ bfd_byte *contents ATTRIBUTE_UNUSED,
+ bfd_boolean *skip,
+ bfd_vma *relocationp)
{
- arelent **generic;
- unsigned char *native;
- size_t each_size;
-
- unsigned int count = section->reloc_count;
- size_t natsize;
-
- if (count == 0) return true;
-
- each_size = reloc_size_func(abfd);
- natsize = each_size * count;
- native = (unsigned char *) zalloc (natsize);
- if (!native) {
- bfd_error = no_memory;
- return false;
- }
+ struct sunos_link_hash_entry *h = (struct sunos_link_hash_entry *) harg;
+ bfd *dynobj;
+ bfd_boolean baserel;
+ bfd_boolean jmptbl;
+ bfd_boolean pcrel;
+ asection *s;
+ bfd_byte *p;
+ long indx;
+
+ *skip = FALSE;
+
+ dynobj = sunos_hash_table (info)->dynobj;
+
+ if (h != NULL
+ && h->plt_offset != 0
+ && (info->shared
+ || (h->flags & SUNOS_DEF_REGULAR) == 0))
+ {
+ asection *splt;
- generic = section->orelocation;
+ /* Redirect the relocation to the PLT entry. */
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ *relocationp = (splt->output_section->vma
+ + splt->output_offset
+ + h->plt_offset);
+ }
- if (each_size == RELOC_EXT_SIZE)
+ if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
{
- swap_ext_reloc_out (abfd,
- generic,
- (struct reloc_ext_bytes *)native,
- count);
+ struct reloc_std_external *srel;
+
+ srel = (struct reloc_std_external *) reloc;
+ if (bfd_header_big_endian (input_bfd))
+ {
+ baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
+ jmptbl = (0 != (srel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
+ pcrel = (0 != (srel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
+ }
+ else
+ {
+ baserel = (0 != (srel->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
+ jmptbl = (0 != (srel->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
+ pcrel = (0 != (srel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
+ }
}
- else
+ else
{
- swap_std_reloc_out(abfd, generic, native, count);
+ struct reloc_ext_external *erel;
+ int r_type;
+
+ erel = (struct reloc_ext_external *) reloc;
+ if (bfd_header_big_endian (input_bfd))
+ r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
+ >> RELOC_EXT_BITS_TYPE_SH_BIG);
+ else
+ r_type = ((erel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
+ >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
+ baserel = (r_type == RELOC_BASE10
+ || r_type == RELOC_BASE13
+ || r_type == RELOC_BASE22);
+ jmptbl = r_type == RELOC_JMP_TBL;
+ pcrel = (r_type == RELOC_DISP8
+ || r_type == RELOC_DISP16
+ || r_type == RELOC_DISP32
+ || r_type == RELOC_WDISP30
+ || r_type == RELOC_WDISP22);
+ /* We don't consider the PC10 and PC22 types to be PC relative,
+ because they are pcrel_offset. */
}
- if ( bfd_write ((void *) native, 1, natsize, abfd) != natsize) {
- free(native);
- return false;
- }
- free (native);
-
- return true;
-}
-
-/* This is stupid. This function should be a boolean predicate */
-unsigned int
-sunos4_canonicalize_reloc (abfd, section, relptr, symbols)
- bfd *abfd;
- sec_ptr section;
- arelent **relptr;
- asymbol **symbols;
-{
- arelent *tblptr = section->relocation;
- unsigned int count;
+ if (baserel)
+ {
+ bfd_vma *got_offsetp;
+ asection *sgot;
+
+ if (h != NULL)
+ got_offsetp = &h->got_offset;
+ else if (adata (input_bfd).local_got_offsets == NULL)
+ got_offsetp = NULL;
+ else
+ {
+ struct reloc_std_external *srel;
+ int r_index;
+
+ srel = (struct reloc_std_external *) reloc;
+ if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
+ {
+ if (bfd_header_big_endian (input_bfd))
+ r_index = ((srel->r_index[0] << 16)
+ | (srel->r_index[1] << 8)
+ | srel->r_index[2]);
+ else
+ r_index = ((srel->r_index[2] << 16)
+ | (srel->r_index[1] << 8)
+ | srel->r_index[0]);
+ }
+ else
+ {
+ struct reloc_ext_external *erel;
+
+ erel = (struct reloc_ext_external *) reloc;
+ if (bfd_header_big_endian (input_bfd))
+ r_index = ((erel->r_index[0] << 16)
+ | (erel->r_index[1] << 8)
+ | erel->r_index[2]);
+ else
+ r_index = ((erel->r_index[2] << 16)
+ | (erel->r_index[1] << 8)
+ | erel->r_index[0]);
+ }
+
+ got_offsetp = adata (input_bfd).local_got_offsets + r_index;
+ }
- if (!(tblptr || sunos4_slurp_reloc_table (abfd, section, symbols)))
- return 0;
+ BFD_ASSERT (got_offsetp != NULL && *got_offsetp != 0);
- if (section->flags & SEC_CONSTRUCTOR) {
- arelent_chain *chain = section->constructor_chain;
- for (count = 0; count < section->reloc_count; count ++) {
- *relptr ++ = &chain->relent;
- chain = chain->next;
- }
- }
- else {
- tblptr = section->relocation;
- if (!tblptr) return 0;
+ sgot = bfd_get_section_by_name (dynobj, ".got");
- for (count = 0; count++ < section->reloc_count;)
- {
- *relptr++ = tblptr++;
- }
- }
- *relptr = 0;
+ /* We set the least significant bit to indicate whether we have
+ already initialized the GOT entry. */
+ if ((*got_offsetp & 1) == 0)
+ {
+ if (h == NULL
+ || (! info->shared
+ && ((h->flags & SUNOS_DEF_DYNAMIC) == 0
+ || (h->flags & SUNOS_DEF_REGULAR) != 0)))
+ PUT_WORD (dynobj, *relocationp, sgot->contents + *got_offsetp);
+ else
+ PUT_WORD (dynobj, 0, sgot->contents + *got_offsetp);
+
+ if (info->shared
+ || (h != NULL
+ && (h->flags & SUNOS_DEF_DYNAMIC) != 0
+ && (h->flags & SUNOS_DEF_REGULAR) == 0))
+ {
+ /* We need to create a GLOB_DAT or 32 reloc to tell the
+ dynamic linker to fill in this entry in the table. */
+
+ s = bfd_get_section_by_name (dynobj, ".dynrel");
+ BFD_ASSERT (s != NULL);
+ BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj)
+ < s->size);
+
+ p = (s->contents
+ + s->reloc_count * obj_reloc_entry_size (dynobj));
+
+ if (h != NULL)
+ indx = h->dynindx;
+ else
+ indx = 0;
+
+ if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE)
+ {
+ struct reloc_std_external *srel;
+
+ srel = (struct reloc_std_external *) p;
+ PUT_WORD (dynobj,
+ (*got_offsetp
+ + sgot->output_section->vma
+ + sgot->output_offset),
+ srel->r_address);
+ if (bfd_header_big_endian (dynobj))
+ {
+ srel->r_index[0] = (bfd_byte) (indx >> 16);
+ srel->r_index[1] = (bfd_byte) (indx >> 8);
+ srel->r_index[2] = (bfd_byte)indx;
+ if (h == NULL)
+ srel->r_type[0] = 2 << RELOC_STD_BITS_LENGTH_SH_BIG;
+ else
+ srel->r_type[0] =
+ (RELOC_STD_BITS_EXTERN_BIG
+ | RELOC_STD_BITS_BASEREL_BIG
+ | RELOC_STD_BITS_RELATIVE_BIG
+ | (2 << RELOC_STD_BITS_LENGTH_SH_BIG));
+ }
+ else
+ {
+ srel->r_index[2] = (bfd_byte) (indx >> 16);
+ srel->r_index[1] = (bfd_byte) (indx >> 8);
+ srel->r_index[0] = (bfd_byte)indx;
+ if (h == NULL)
+ srel->r_type[0] = 2 << RELOC_STD_BITS_LENGTH_SH_LITTLE;
+ else
+ srel->r_type[0] =
+ (RELOC_STD_BITS_EXTERN_LITTLE
+ | RELOC_STD_BITS_BASEREL_LITTLE
+ | RELOC_STD_BITS_RELATIVE_LITTLE
+ | (2 << RELOC_STD_BITS_LENGTH_SH_LITTLE));
+ }
+ }
+ else
+ {
+ struct reloc_ext_external *erel;
+
+ erel = (struct reloc_ext_external *) p;
+ PUT_WORD (dynobj,
+ (*got_offsetp
+ + sgot->output_section->vma
+ + sgot->output_offset),
+ erel->r_address);
+ if (bfd_header_big_endian (dynobj))
+ {
+ erel->r_index[0] = (bfd_byte) (indx >> 16);
+ erel->r_index[1] = (bfd_byte) (indx >> 8);
+ erel->r_index[2] = (bfd_byte)indx;
+ if (h == NULL)
+ erel->r_type[0] =
+ RELOC_32 << RELOC_EXT_BITS_TYPE_SH_BIG;
+ else
+ erel->r_type[0] =
+ (RELOC_EXT_BITS_EXTERN_BIG
+ | (RELOC_GLOB_DAT << RELOC_EXT_BITS_TYPE_SH_BIG));
+ }
+ else
+ {
+ erel->r_index[2] = (bfd_byte) (indx >> 16);
+ erel->r_index[1] = (bfd_byte) (indx >> 8);
+ erel->r_index[0] = (bfd_byte)indx;
+ if (h == NULL)
+ erel->r_type[0] =
+ RELOC_32 << RELOC_EXT_BITS_TYPE_SH_LITTLE;
+ else
+ erel->r_type[0] =
+ (RELOC_EXT_BITS_EXTERN_LITTLE
+ | (RELOC_GLOB_DAT
+ << RELOC_EXT_BITS_TYPE_SH_LITTLE));
+ }
+ PUT_WORD (dynobj, 0, erel->r_addend);
+ }
+
+ ++s->reloc_count;
+ }
+
+ *got_offsetp |= 1;
+ }
- return section->reloc_count;
-}
+ *relocationp = (sgot->vma
+ + (*got_offsetp &~ (bfd_vma) 1)
+ - sunos_hash_table (info)->got_base);
-unsigned int
-sunos4_get_reloc_upper_bound (abfd, asect)
- bfd *abfd;
- sec_ptr asect;
-{
- if (bfd_get_format (abfd) != bfd_object) {
- bfd_error = invalid_operation;
- return 0;
- }
- if (asect->flags & SEC_CONSTRUCTOR) {
- return (sizeof (arelent *) * (asect->reloc_count+1));
- }
+ /* There is nothing else to do for a base relative reloc. */
+ return TRUE;
+ }
+ if (! sunos_hash_table (info)->dynamic_sections_needed)
+ return TRUE;
+ if (! info->shared)
+ {
+ if (h == NULL
+ || h->dynindx == -1
+ || h->root.root.type != bfd_link_hash_undefined
+ || (h->flags & SUNOS_DEF_REGULAR) != 0
+ || (h->flags & SUNOS_DEF_DYNAMIC) == 0
+ || (h->root.root.u.undef.abfd->flags & DYNAMIC) == 0)
+ return TRUE;
+ }
+ else
+ {
+ if (h != NULL
+ && (h->dynindx == -1
+ || jmptbl
+ || strcmp (h->root.root.root.string,
+ "__GLOBAL_OFFSET_TABLE_") == 0))
+ return TRUE;
+ }
- if (asect == obj_datasec (abfd))
- return (sizeof (arelent *) *
- ((exec_hdr(abfd)->a_drsize / reloc_size_func(abfd))
- +1));
+ /* It looks like this is a reloc we are supposed to copy. */
- if (asect == obj_textsec (abfd))
- return (sizeof (arelent *) *
- ((exec_hdr(abfd)->a_trsize / reloc_size_func(abfd))
- +1));
+ s = bfd_get_section_by_name (dynobj, ".dynrel");
+ BFD_ASSERT (s != NULL);
+ BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj) < s->size);
- bfd_error = invalid_operation;
- return 0;
-}
+ p = s->contents + s->reloc_count * obj_reloc_entry_size (dynobj);
-void
-sunos4_reclaim_reloc (ignore_abfd, section)
- bfd *ignore_abfd;
- sec_ptr section;
-{
- if (section->relocation) {
- free (section->relocation);
- section->relocation = NULL;
- section->reloc_count = 0;
- }
-}
-\f
+ /* Copy the reloc over. */
+ memcpy (p, reloc, obj_reloc_entry_size (dynobj));
-alent *
-sunos4_get_lineno(ignore_abfd, ignore_symbol)
-bfd *ignore_abfd;
-generic_symbol_type *ignore_symbol;
-{
-return (alent *)NULL;
-}
+ if (h != NULL)
+ indx = h->dynindx;
+ else
+ indx = 0;
-void
-sunos4_print_symbol(ignore_abfd, file, symbol, how)
-bfd *ignore_abfd;
-FILE *file;
-asymbol *symbol;
-bfd_print_symbol_enum_type how;
-{
- switch (how) {
- case bfd_print_symbol_name_enum:
- fprintf(file,"%s", symbol->name);
- break;
- case bfd_print_symbol_type_enum:
- fprintf(file,"%4x %2x %2x",(unsigned)(aout_symbol(symbol)->desc & 0xffff),
- (unsigned)( aout_symbol(symbol)->other & 0xff),
- (unsigned)(aout_symbol(symbol)->type));
- break;
- case bfd_print_symbol_all_enum:
+ /* Adjust the address and symbol index. */
+ if (obj_reloc_entry_size (dynobj) == RELOC_STD_SIZE)
{
- char *section_name = symbol->section == (asection *)NULL ?
- "*abs" : symbol->section->name;
-
- bfd_print_symbol_vandf((void *)file,symbol);
-
- fprintf(file," %-5s %04x %02x %02x %s",
- section_name,
- (unsigned)(aout_symbol(symbol)->desc & 0xffff),
- (unsigned)(aout_symbol(symbol)->other & 0xff),
- (unsigned)(aout_symbol(symbol)->type & 0xff),
- symbol->name);
+ struct reloc_std_external *srel;
+
+ srel = (struct reloc_std_external *) p;
+ PUT_WORD (dynobj,
+ (GET_WORD (dynobj, srel->r_address)
+ + input_section->output_section->vma
+ + input_section->output_offset),
+ srel->r_address);
+ if (bfd_header_big_endian (dynobj))
+ {
+ srel->r_index[0] = (bfd_byte) (indx >> 16);
+ srel->r_index[1] = (bfd_byte) (indx >> 8);
+ srel->r_index[2] = (bfd_byte)indx;
+ }
+ else
+ {
+ srel->r_index[2] = (bfd_byte) (indx >> 16);
+ srel->r_index[1] = (bfd_byte) (indx >> 8);
+ srel->r_index[0] = (bfd_byte)indx;
+ }
+ /* FIXME: We may have to change the addend for a PC relative
+ reloc. */
}
- break;
- }
-}
-/* Once we know all the stuff that could be consed, we know how to clean
- it up. So why don't we? */
-
-boolean
-sunos4_close_and_cleanup (abfd)
- bfd *abfd;
-{
- if (!bfd_read_p (abfd))
- switch (abfd->format) {
- case bfd_archive:
- if (!_bfd_write_archive_contents (abfd)) return false; break;
- case bfd_object:
- if (!sunos4_write_object_contents (abfd)) return false; break;
- default: bfd_error = invalid_operation; return false;
+ else
+ {
+ struct reloc_ext_external *erel;
+
+ erel = (struct reloc_ext_external *) p;
+ PUT_WORD (dynobj,
+ (GET_WORD (dynobj, erel->r_address)
+ + input_section->output_section->vma
+ + input_section->output_offset),
+ erel->r_address);
+ if (bfd_header_big_endian (dynobj))
+ {
+ erel->r_index[0] = (bfd_byte) (indx >> 16);
+ erel->r_index[1] = (bfd_byte) (indx >> 8);
+ erel->r_index[2] = (bfd_byte)indx;
+ }
+ else
+ {
+ erel->r_index[2] = (bfd_byte) (indx >> 16);
+ erel->r_index[1] = (bfd_byte) (indx >> 8);
+ erel->r_index[0] = (bfd_byte)indx;
+ }
+ if (pcrel && h != NULL)
+ {
+ /* Adjust the addend for the change in address. */
+ PUT_WORD (dynobj,
+ (GET_WORD (dynobj, erel->r_addend)
+ - (input_section->output_section->vma
+ + input_section->output_offset
+ - input_section->vma)),
+ erel->r_addend);
+ }
}
-#define cleaner(ptr) if (abfd->ptr) free (abfd->ptr)
- cleaner (tdata);
+ ++s->reloc_count;
- if (abfd->my_archive)
- cleaner (filename);
+ if (h != NULL)
+ *skip = TRUE;
-#undef cleaner
- return true;
+ return TRUE;
}
-/*
- provided a bfd, a section and an offset into the section, calculate
- and return the name of the source file and the line nearest to the
- wanted location.
-*/
-
-boolean
-sunos4_find_nearest_line(abfd,
- section,
- symbols,
- offset,
- filename_ptr,
- functionname_ptr,
- line_ptr)
-bfd *abfd;
-asection *section;
-asymbol **symbols;
-bfd_vma offset;
-char **filename_ptr;
-char **functionname_ptr;
-unsigned int *line_ptr;
+/* Finish up the dynamic linking information. */
+
+static bfd_boolean
+sunos_finish_dynamic_link (bfd *abfd, struct bfd_link_info *info)
{
- /* Run down the file looking for the filename, function and linenumber */
- asymbol **p;
- static char buffer[100];
- bfd_vma high_line_vma = ~0;
- bfd_vma low_func_vma = 0;
- asymbol *func = 0;
- *filename_ptr = abfd->filename;
- *functionname_ptr = 0;
- *line_ptr = 0;
- if (symbols != (asymbol **)NULL) {
- for (p = symbols; *p; p++) {
- aout_symbol_type *q = (aout_symbol_type *)(*p);
- switch (q->type){
- case N_SO:
- *filename_ptr = q->symbol.name;
- if (obj_textsec(abfd) != section) {
- return true;
- }
- break;
- case N_SLINE:
-
- case N_DSLINE:
- case N_BSLINE:
- /* We'll keep this if it resolves nearer than the one we have already */
- if (q->symbol.value >= offset &&
- q->symbol.value < high_line_vma) {
- *line_ptr = q->desc;
- high_line_vma = q->symbol.value;
- }
- break;
- case N_FUN:
- {
- /* We'll keep this if it is nearer than the one we have already */
- if (q->symbol.value >= low_func_vma &&
- q->symbol.value <= offset) {
- low_func_vma = q->symbol.value;
- func = (asymbol *)q;
- }
- if (*line_ptr && func) {
- char *function = func->name;
- char *p;
- strncpy(buffer, function, sizeof(buffer)-1);
- buffer[sizeof(buffer)-1] = 0;
- /* Have to remove : stuff */
- p = strchr(buffer,':');
- if (p != NULL) {*p = NULL; }
- *functionname_ptr = buffer;
- return true;
+ bfd *dynobj;
+ asection *o;
+ asection *s;
+ asection *sdyn;
+
+ if (! sunos_hash_table (info)->dynamic_sections_needed
+ && ! sunos_hash_table (info)->got_needed)
+ return TRUE;
+
+ dynobj = sunos_hash_table (info)->dynobj;
+
+ sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+ BFD_ASSERT (sdyn != NULL);
+
+ /* Finish up the .need section. The linker emulation code filled it
+ in, but with offsets from the start of the section instead of
+ real addresses. Now that we know the section location, we can
+ fill in the final values. */
+ s = bfd_get_section_by_name (dynobj, ".need");
+ if (s != NULL && s->size != 0)
+ {
+ file_ptr filepos;
+ bfd_byte *p;
- }
+ filepos = s->output_section->filepos + s->output_offset;
+ p = s->contents;
+ while (1)
+ {
+ bfd_vma val;
+
+ PUT_WORD (dynobj, GET_WORD (dynobj, p) + filepos, p);
+ val = GET_WORD (dynobj, p + 12);
+ if (val == 0)
+ break;
+ PUT_WORD (dynobj, val + filepos, p + 12);
+ p += 16;
}
- break;
- }
}
- }
-
- return true;
-}
+ /* The first entry in the .got section is the address of the
+ dynamic information, unless this is a shared library. */
+ s = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (s != NULL);
+ if (info->shared || sdyn->size == 0)
+ PUT_WORD (dynobj, 0, s->contents);
+ else
+ PUT_WORD (dynobj, sdyn->output_section->vma + sdyn->output_offset,
+ s->contents);
+
+ for (o = dynobj->sections; o != NULL; o = o->next)
+ {
+ if ((o->flags & SEC_HAS_CONTENTS) != 0
+ && o->contents != NULL)
+ {
+ BFD_ASSERT (o->output_section != NULL
+ && o->output_section->owner == abfd);
+ if (! bfd_set_section_contents (abfd, o->output_section,
+ o->contents,
+ (file_ptr) o->output_offset,
+ o->size))
+ return FALSE;
+ }
+ }
-bfd_target aoutvec =
-{
- "a.out-generic-big", /* name */
- bfd_target_aout_flavour_enum,
- true, /* target byte order */
- true, /* target headers byte order */
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- 0, /* valid reloc types */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- sunos4_close_and_cleanup, /* _close_and_cleanup */
- sunos4_set_section_contents, /* bfd_set_section_contents */
- sunos4_get_section_contents, /* bfd_get_section_contents */
- sunos4_new_section_hook, /* new_section_hook */
- sunos4_core_file_failing_command, /* _core_file_failing_command */
- sunos4_core_file_failing_signal, /* _core_file_failing_signal */
- sunos4_core_file_matches_executable_p, /* _core_file_matches_ex...p */
-
- bfd_slurp_bsd_armap, /* bfd_slurp_armap */
- bfd_true, /* bfd_slurp_extended_name_table */
- bfd_bsd_truncate_arname, /* bfd_truncate_arname */
-
- sunos4_get_symtab_upper_bound, /* get_symtab_upper_bound */
- sunos4_get_symtab, /* canonicalize_symtab */
- sunos4_reclaim_symbol_table, /* bfd_reclaim_symbol_table */
- sunos4_get_reloc_upper_bound, /* get_reloc_upper_bound */
- sunos4_canonicalize_reloc, /* bfd_canonicalize_reloc */
- sunos4_reclaim_reloc, /* bfd_reclaim_reloc */
- sunos4_get_symcount_upper_bound, /* bfd_get_symcount_upper_bound */
- sunos4_get_first_symbol, /* bfd_get_first_symbol */
- sunos4_get_next_symbol, /* bfd_get_next_symbol */
- sunos4_classify_symbol, /* bfd_classify_symbol */
- sunos4_symbol_hasclass, /* bfd_symbol_hasclass */
- sunos4_symbol_name, /* bfd_symbol_name */
- sunos4_symbol_value, /* bfd_symbol_value */
-
- _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* data */
- _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* hdrs */
-
- {_bfd_dummy_target, sunos4_object_p, /* bfd_check_format */
- bfd_generic_archive_p, sunos4_core_file_p},
- {bfd_false, sunos4_mkobject, /* bfd_zxset_format */
- _bfd_generic_mkarchive, bfd_false},
- sunos4_make_empty_symbol,
- sunos4_print_symbol,
- sunos4_get_lineno,
- sunos4_set_arch_mach,
- bsd_write_armap,
- bfd_generic_openr_next_archived_file,
- sunos4_find_nearest_line, /* bfd_find_nearest_line */
- bfd_generic_stat_arch_elt /* bfd_stat_arch_elt */
- };
+ if (sdyn->size > 0)
+ {
+ struct external_sun4_dynamic esd;
+ struct external_sun4_dynamic_link esdl;
+ file_ptr pos;
+
+ /* Finish up the dynamic link information. */
+ PUT_WORD (dynobj, (bfd_vma) 3, esd.ld_version);
+ PUT_WORD (dynobj,
+ sdyn->output_section->vma + sdyn->output_offset + sizeof esd,
+ esd.ldd);
+ PUT_WORD (dynobj,
+ (sdyn->output_section->vma
+ + sdyn->output_offset
+ + sizeof esd
+ + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE),
+ esd.ld);
+
+ if (! bfd_set_section_contents (abfd, sdyn->output_section, &esd,
+ (file_ptr) sdyn->output_offset,
+ (bfd_size_type) sizeof esd))
+ return FALSE;
+
+ PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_loaded);
+
+ s = bfd_get_section_by_name (dynobj, ".need");
+ if (s == NULL || s->size == 0)
+ PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_need);
+ else
+ PUT_WORD (dynobj, s->output_section->filepos + s->output_offset,
+ esdl.ld_need);
+
+ s = bfd_get_section_by_name (dynobj, ".rules");
+ if (s == NULL || s->size == 0)
+ PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_rules);
+ else
+ PUT_WORD (dynobj, s->output_section->filepos + s->output_offset,
+ esdl.ld_rules);
+
+ s = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (s != NULL);
+ PUT_WORD (dynobj, s->output_section->vma + s->output_offset,
+ esdl.ld_got);
+
+ s = bfd_get_section_by_name (dynobj, ".plt");
+ BFD_ASSERT (s != NULL);
+ PUT_WORD (dynobj, s->output_section->vma + s->output_offset,
+ esdl.ld_plt);
+ PUT_WORD (dynobj, s->size, esdl.ld_plt_sz);
+
+ s = bfd_get_section_by_name (dynobj, ".dynrel");
+ BFD_ASSERT (s != NULL);
+ BFD_ASSERT (s->reloc_count * obj_reloc_entry_size (dynobj)
+ == s->size);
+ PUT_WORD (dynobj, s->output_section->filepos + s->output_offset,
+ esdl.ld_rel);
+
+ s = bfd_get_section_by_name (dynobj, ".hash");
+ BFD_ASSERT (s != NULL);
+ PUT_WORD (dynobj, s->output_section->filepos + s->output_offset,
+ esdl.ld_hash);
+
+ s = bfd_get_section_by_name (dynobj, ".dynsym");
+ BFD_ASSERT (s != NULL);
+ PUT_WORD (dynobj, s->output_section->filepos + s->output_offset,
+ esdl.ld_stab);
+
+ PUT_WORD (dynobj, (bfd_vma) 0, esdl.ld_stab_hash);
+
+ PUT_WORD (dynobj, (bfd_vma) sunos_hash_table (info)->bucketcount,
+ esdl.ld_buckets);
+
+ s = bfd_get_section_by_name (dynobj, ".dynstr");
+ BFD_ASSERT (s != NULL);
+ PUT_WORD (dynobj, s->output_section->filepos + s->output_offset,
+ esdl.ld_symbols);
+ PUT_WORD (dynobj, s->size, esdl.ld_symb_size);
+
+ /* The size of the text area is the size of the .text section
+ rounded up to a page boundary. FIXME: Should the page size be
+ conditional on something? */
+ PUT_WORD (dynobj,
+ BFD_ALIGN (obj_textsec (abfd)->size, 0x2000),
+ esdl.ld_text);
+
+ pos = sdyn->output_offset;
+ pos += sizeof esd + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE;
+ if (! bfd_set_section_contents (abfd, sdyn->output_section, &esdl,
+ pos, (bfd_size_type) sizeof esdl))
+ return FALSE;
+
+ abfd->flags |= DYNAMIC;
+ }
+ return TRUE;
+}
projects / external / binutils.git / blobdiff