X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fsunos.c;h=9cb856d009808fb39710fcf515c73029b6a29ff1;hb=c244074cb684302be1378a072b33cdb8dd0dff1f;hp=a88d39137feff56365b8b36fdcb7e15df72f30ed;hpb=9846338e68f0951443690e50cb678082a86be57e;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/sunos.c b/bfd/sunos.c index a88d39137f..9cb856d009 100644 --- a/bfd/sunos.c +++ b/bfd/sunos.c @@ -1,2178 +1,2845 @@ -/*** bfd backend for sunos binaries */ +/* BFD backend for SunOS binaries. + Copyright (C) 1990-2016 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 (sparc_aout_sunos_be_,OP) -#define TARGET_BYTE_ORDER_BIG_P 1 - -#include #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 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, 0,0x000000ff}, -{ (unsigned int) RELOC_16, 0, 1, 16, false, 0, true, true,0,"16", false, 0,0x0000ffff}, -{ (unsigned int) RELOC_32, 0, 2, 32, false, 0, true, true,0,"32", false, 0,0xffffffff}, -{ (unsigned int) RELOC_DISP8, 0, 0, 8, true, 0, false, true,0,"DISP8", false, 0,0x000000ff}, -{ (unsigned int) RELOC_DISP16, 0, 1, 16, true, 0, false, true,0,"DISP16", false, 0,0x0000ffff}, -{ (unsigned int) RELOC_DISP32, 0, 2, 32, true, 0, false, true,0,"DISP32", false, 0,0xffffffff}, -{ (unsigned int) RELOC_WDISP30,2, 2, 30, true, 0, false, true,0,"WDISP30", false, 0,0x3fffffff}, -{ (unsigned int) RELOC_WDISP22,2, 2, 22, true, 0, false, true,0,"WDISP22", false, 0,0x003fffff}, -{ (unsigned int) RELOC_HI22, 10, 2, 22, false, 0, false, true,0,"HI22", false, 0,0x003fffff}, -{ (unsigned int) RELOC_22, 0, 2, 22, false, 0, false, true,0,"22", false, 0,0x003fffff}, -{ (unsigned int) RELOC_13, 0, 2, 13, false, 0, false, true,0,"13", false, 0,0x00001fff}, -{ (unsigned int) RELOC_LO10, 0, 2, 10, false, 0, false, true,0,"LO10", false, 0,0x000003ff}, -{ (unsigned int) RELOC_SFA_BASE,0, 2, 32, false, 0, false, true,0,"SFA_BASE", false, 0,0xffffffff}, -{ (unsigned int) RELOC_SFA_OFF13,0,2, 32, false, 0, false, true,0,"SFA_OFF13",false, 0,0xffffffff}, -{ (unsigned int) RELOC_BASE10, 0, 2, 16, false, 0, false, true,0,"BASE10", false, 0,0x0000ffff}, -{ (unsigned int) RELOC_BASE13, 0, 2, 13, false, 0, false, true,0,"BASE13", false, 0,0x00001fff}, -{ (unsigned int) RELOC_BASE22, 0, 2, 0, false, 0, false, true,0,"BASE22", false, 0,0x00000000}, -{ (unsigned int) RELOC_PC10, 0, 2, 10, false, 0, false, true,0,"PC10", false, 0,0x000003ff}, -{ (unsigned int) RELOC_PC22, 0, 2, 22, false, 0, false, true,0,"PC22", false, 0,0x003fffff}, -{ (unsigned int) RELOC_JMP_TBL,0, 2, 32, false, 0, false, true,0,"JMP_TBL", false, 0,0xffffffff}, -{ (unsigned int) RELOC_SEGOFF16,0, 2, 0, false, 0, false, true,0,"SEGOFF16", false, 0,0x00000000}, -{ (unsigned int) RELOC_GLOB_DAT,0, 2, 0, false, 0, false, true,0,"GLOB_DAT", false, 0,0x00000000}, -{ (unsigned int) RELOC_JMP_SLOT,0, 2, 0, false, 0, false, true,0,"JMP_SLOT", false, 0,0x00000000}, -{ (unsigned int) RELOC_RELATIVE,0, 2, 0, false, 0, false, true,0,"RELATIVE", false, 0,0x00000000}, -{ (unsigned int) RELOC_JUMPTARG,2, 13, 16, true, 0, false, true,0,"JUMPTARG", false, 0,0x0000ffff}, -{ (unsigned int) RELOC_CONST, 0, 13, 16, false, 0, false, true,0,"CONST", false, 0,0x0000ffff}, -{ (unsigned int) RELOC_CONSTH, 16, 13, 16, false, 0, false, true,0,"CONSTH", false, 0,0x0000ffff}, -}; - -/* Convert standard reloc records to "arelent" format (incl byte swap). */ - -static 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,0x000000ff}, -{ (unsigned int) 1, 0, 1, 16, false, 0, true, true,0,"16", true, 0x0000ffff,0x0000ffff}, -{ (unsigned int) 2, 0, 2, 32, false, 0, true, true,0,"32", true, 0xffffffff,0xffffffff}, -{ (unsigned int) 3, 0, 3, 64, false, 0, true, true,0,"64", true, 0xdeaddead,0xdeaddead}, -{ (unsigned int) 4, 0, 0, 8, true, 0, false, true,0,"DISP8", true, 0x000000ff,0x000000ff}, -{ (unsigned int) 5, 0, 1, 16, true, 0, false, true,0,"DISP16", true, 0x0000ffff,0x0000ffff}, -{ (unsigned int) 6, 0, 2, 32, true, 0, false, true,0,"DISP32", true, 0xffffffff,0xffffffff}, -{ (unsigned int) 7, 0, 3, 64, true, 0, false, true,0,"DISP64", true, 0xfeedface,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; + } -bfd_error_vector_type bfd_error_vector; -/** 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; } -static void -DEFUN(bfd_aout_swap_exec_header_in,(abfd, raw_bytes, execp), - bfd *abfd AND - unsigned char *raw_bytes AND - 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. */ -static void -DEFUN(bfd_aout_swap_exec_header_out,(abfd, execp, raw_bytes), - bfd *abfd AND - struct exec *execp AND - 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;} - -static -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; - PTR 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 ((PTR)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 ((PTR) 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 = (PTR) 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; - abfd->tdata = (PTR)((struct sunexdata *) rawptr); - exec_hdr (abfd) = (struct exec *) (rawptr + sizeof (struct sunexdata)); + 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; - /* For simplicity's sake we just make all the sections right here. */ + to = info->canonical_dynrel; + + 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; } + +/* 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
, %g1 */ +#define SPARC_PLT_PIC_WORD0 ((bfd_vma) 0x03000000) +/* jmp %g1 +
*/ +#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 +}; -boolean -sunos4_write_object_contents (abfd) - bfd *abfd; +/* The SunOS linker hash table. */ + +struct sunos_link_hash_table { - size_t 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 ((PTR) 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; -}; - -/* 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.) */ -}; + return (struct bfd_hash_entry *) ret; +} -/* 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; -}; +/* Create a SunOS link hash table. */ -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 ((PTR)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 ((PTR)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_zmalloc (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)); + return &ret->root.root; +} - if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size) { - bfd_error = system_call_error; - free ((PTR)rawptr); - return 0; - } +/* Look up an entry in an SunOS link hash table. */ - 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 ((PTR)rawptr); - return 0; - } - core_datasec (abfd) = (asection *) zalloc (sizeof (asection)); - if (core_datasec (abfd) == NULL) { -loser1: - free ((PTR)core_stacksec (abfd)); - goto loser; - } - core_regsec (abfd) = (asection *) zalloc (sizeof (asection)); - if (core_regsec (abfd) == NULL) { -loser2: - free ((PTR)core_datasec (abfd)); - goto loser1; - } - core_reg2sec (abfd) = (asection *) zalloc (sizeof (asection)); - if (core_reg2sec (abfd) == NULL) { - free ((PTR)core_regsec (abfd)); - goto loser2; - } +#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))) - 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; -} +/* Traverse a SunOS link hash table. */ -char * -sunos4_core_file_failing_command (abfd) - bfd *abfd; -{ - return core_hdr (abfd)->c_cmdname; -} +#define sunos_link_hash_traverse(table, func, info) \ + (aout_link_hash_traverse \ + (&(table)->root, \ + (bfd_boolean (*) (struct aout_link_hash_entry *, void *)) (func), \ + (info))) -int -sunos4_core_file_failing_signal (abfd) - bfd *abfd; -{ - return core_hdr (abfd)->c_signo; -} - -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. */ -} - -/** 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_anyway_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_anyway_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_anyway_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_anyway_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_anyway_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_anyway_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_anyway_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) + || bfd_link_pic (info)) + { + bfd *dynobj; + + dynobj = sunos_hash_table (info)->dynobj; - if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) { - obj_bsssec(abfd) = newsect; - return true; + s = bfd_get_linker_section (dynobj, ".got"); + if (s->size == 0) + s->size = BYTES_IN_WORD; + + 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 + && !bfd_link_relocatable (info)))) + 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 ((PTR)location, 1, count, abfd) == count) ? - true : false; - } - return false; -} -boolean -sunos4_get_section_contents (abfd, section, location, offset, count) - bfd *abfd; - sec_ptr section; - PTR 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; -} - - -/* Classify stabs symbols */ + /* The native linker seems to just ignore dynamic objects when -r is + used. */ + if (bfd_link_relocatable (info)) + 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_vector.nonrepresentable_section(abfd, 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; } - -/* 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 (! bfd_link_pic (info) || 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 -DEFUN(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 ((PTR)&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; - } - - cached = (aout_symbol_type *) zalloc ((size_t)(string_size + 1 + - (symbol_count * sizeof (aout_symbol_type)))); - if (cached == NULL) { - bfd_error = no_memory; - free ((PTR)syms); - return false; - } - - strings = ((char *) cached) + (symbol_count * sizeof (aout_symbol_type)); + 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; + } - bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET); - if (bfd_read ((PTR)syms, 1, symbol_size, abfd) != symbol_size) { - bailout: - free ((PTR)cached); - free ((PTR)syms); - return false; - } + dynobj = NULL; - bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET); - if (bfd_read ((PTR)strings, 1, string_size, abfd) != string_size) { - goto bailout; - } + sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); - /* 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; - - /* 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); - - } + relend = relocs + rel_size / RELOC_STD_SIZE; + for (rel = relocs; rel < relend; rel++) + { + int r_index; + struct sunos_link_hash_entry *h; - /* 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); + /* 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; + } - } - } + /* 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_linker_section (dynobj, ".plt"); + srel = bfd_get_linker_section (dynobj, ".dynrel"); + BFD_ASSERT (splt != NULL && srel != NULL); + + sgot = bfd_get_linker_section (dynobj, ".got"); + BFD_ASSERT (sgot != NULL); + if (sgot->size == 0) + sgot->size = BYTES_IN_WORD; + sunos_hash_table (info)->got_needed = TRUE; + } - obj_aout_symbols (abfd) = cached; - bfd_get_symcount (abfd) = symbol_count; - free ((PTR)syms); + 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; + } + } + } - return true; + return TRUE; } - -void -DEFUN(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; + sym_hashes = (struct sunos_link_hash_entry **) obj_aout_sym_hashes (abfd); - nsp.n_value = g->value; - translate_to_native_sym_flags (&nsp, (generic_symbol_type *)g, abfd); - - - 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((PTR)&nsp,1, sizeof(nsp), 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; + /* 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); + } - /* 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 (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; + } + } - bfd_write((PTR)&stindex, 1, sizeof(stindex), abfd); - - generic = bfd_get_outsymbols(abfd); - for (count = 0; count < bfd_get_symcount(abfd); count++) - { - asymbol *g = *(generic++); + /* 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_linker_section (dynobj, ".plt"); + sgot = bfd_get_linker_section (dynobj, ".got"); + srel = bfd_get_linker_section (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 (bfd_link_pic (info) + || (h != NULL + && (h->flags & SUNOS_DEF_DYNAMIC) != 0 + && (h->flags & SUNOS_DEF_REGULAR) == 0)) + srel->size += RELOC_EXT_SIZE; + + continue; + } - if (g->name != (char *)NULL) + /* 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) { - size_t length = strlen(g->name)+1; - bfd_write((PTR)g->name, 1, length, abfd); + /* But, if we are creating a shared library, we need to + generate an absolute reloc. */ + if (bfd_link_pic (info)) + { + if (dynobj == NULL) + { + if (! sunos_create_dynamic_sections (abfd, info, TRUE)) + return FALSE; + dynobj = sunos_hash_table (info)->dynobj; + splt = bfd_get_linker_section (dynobj, ".plt"); + sgot = bfd_get_linker_section (dynobj, ".got"); + srel = bfd_get_linker_section (dynobj, ".dynrel"); + BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); + } + + srel->size += RELOC_EXT_SIZE; + } + + continue; } - if ((g->flags & BSF_FAKE)==0) { - g->name = itos(count); /* smash the generic symbol */ - } - } -} + /* 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 + && ! bfd_link_pic (info) + && ((h->flags & SUNOS_DEF_DYNAMIC) == 0 + || (h->flags & SUNOS_DEF_REGULAR) != 0)) + continue; + + if (r_type == RELOC_JMP_TBL + && ! bfd_link_pic (info) + && (h->flags & SUNOS_DEF_DYNAMIC) == 0 + && (h->flags & SUNOS_DEF_REGULAR) == 0) + { + /* This symbol is apparently undefined. Don't do anything + here; just let the relocation routine report an undefined + symbol. */ + continue; + } -void -DEFUN(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_linker_section (dynobj, ".plt"); + sgot = bfd_get_linker_section (dynobj, ".got"); + srel = bfd_get_linker_section (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 ((PTR)section->relocation); - section->relocation = NULL; - section->reloc_count = 0; + BFD_ASSERT (r_type == RELOC_JMP_TBL + || bfd_link_pic (info) + || (h->flags & SUNOS_REF_REGULAR) != 0); + BFD_ASSERT (r_type == RELOC_JMP_TBL + || bfd_link_pic (info) + || 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 (bfd_link_pic (info) || (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 (bfd_link_pic (info) && r_type != RELOC_JMP_TBL) + srel->size += RELOC_EXT_SIZE; + } } - bfd_get_symcount (abfd) = 0; - free ((PTR)obj_aout_symbols (abfd)); - obj_aout_symbols (abfd) = (aout_symbol_type *)NULL; + return TRUE; } - -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); -} + 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); - -/* Obsolete procedural interface; better to look at the cache directly */ + 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; -/* User should have checked the file flags; perhaps we should return - BFD_NO_MORE_SYMBOLS if there are none? */ + if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 + || bfd_bread (relocs, rel_size, abfd) != rel_size) + goto error_return; -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 (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; + } - return (exec_hdr (abfd)->a_syms) / (sizeof (struct nlist)); -} + if (free_relocs != NULL) + free (free_relocs); -symindex -sunos4_get_first_symbol (ignore_abfd) - bfd * ignore_abfd; -{ - return 0; -} - -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; -CONST 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_linker_section (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_linker_section (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; +/* 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) { - 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; - } -} - -/* 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; -{ - 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 (bfd_link_relocatable (info)) + 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 = (int) 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; - } - 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); + 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; } - } - - /* 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); - } - - } -} + dynobj = sunos_hash_table (info)->dynobj; + dynsymcount = sunos_hash_table (info)->dynsymcount; -/* Extended stuff */ -/* Output extended relocation information to a file in target byte order. */ - -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; + } + s = bfd_get_linker_section (dynobj, ".got"); + BFD_ASSERT (s != NULL); + h->root.root.type = bfd_link_hash_defined; + h->root.root.u.def.section = s; + + /* 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. */ + 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_linker_section (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_linker_section (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_linker_section (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_linker_section (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_linker_section (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_linker_section (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_linker_section (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; - PTR 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_linker_section (dynobj, ".plt"); + p = splt->contents + h->plt_offset; - if (asect->flags & SEC_CONSTRUCTOR) return true; + s = bfd_get_linker_section (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 (bfd_link_pic (info) || (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 (! bfd_link_pic (info) && (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 = (PTR) 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 (bfd_link_pic (info) || (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 = (struct reloc_ext_bytes *) 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 = (struct reloc_std_bytes *) 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_linker_section (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 + && (bfd_link_pic (info) + || (h->flags & SUNOS_DEF_REGULAR) == 0)) + { + asection *splt; - generic = section->orelocation; + /* Redirect the relocation to the PLT entry. */ + splt = bfd_get_linker_section (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 ((PTR) 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_linker_section (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 + || (! bfd_link_pic (info) + && ((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 (bfd_link_pic (info) + || (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_linker_section (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 (! bfd_link_pic (info)) + { + 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_linker_section (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; - } -} - + /* 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) { - CONST char *section_name = symbol->section == (asection *)NULL ? - "*abs" : symbol->section->name; - - bfd_print_symbol_vandf((PTR)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 -DEFUN(sunos4_find_nearest_line,(abfd, - section, - symbols, - offset, - filename_ptr, - functionname_ptr, - line_ptr), - bfd *abfd AND - asection *section AND - asymbol **symbols AND - bfd_vma offset AND - CONST char **filename_ptr AND - CONST char **functionname_ptr AND - 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) { - CONST 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_linker_section (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_linker_section (dynobj, ".got"); + BFD_ASSERT (s != NULL); + if (bfd_link_pic (info) || 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 aout_big_vec = -{ - "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 */ - }; - -bfd_target aout_little_vec = -{ - "a.out-generic-little", /* 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_getllong, _do_putllong, _do_getlshort, _do_putlshort, /* data */ - _do_getllong, _do_putllong, _do_getlshort, _do_putlshort, /* 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_linker_section (dynobj, ".got"); + BFD_ASSERT (s != NULL); + PUT_WORD (dynobj, s->output_section->vma + s->output_offset, + esdl.ld_got); + + s = bfd_get_linker_section (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_linker_section (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_linker_section (dynobj, ".hash"); + BFD_ASSERT (s != NULL); + PUT_WORD (dynobj, s->output_section->filepos + s->output_offset, + esdl.ld_hash); + + s = bfd_get_linker_section (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_linker_section (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; +}