--- /dev/null
+/* ELF executable support for BFD.
+ Copyright 1991, 1992, 1993 Free Software Foundation, Inc.
+
+ Written by Fred Fish @ Cygnus Support, from information published
+ in "UNIX System V Release 4, Programmers Guide: ANSI C and
+ Programming Support Tools". Sufficient support for gdb.
+
+ Rewritten by Mark Eichin @ Cygnus Support, from information
+ published in "System V Application Binary Interface", chapters 4
+ and 5, as well as the various "Processor Supplement" documents
+ derived from it. Added support for assembler and other object file
+ utilities. Further work done by Ken Raeburn (Cygnus Support), Michael
+ Meissner (Open Software Foundation), and Peter Hoogenboom (University
+ of Utah) to finish and extend this.
+
+This file is part of BFD, the Binary File Descriptor library.
+
+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 2 of the License, 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.
+
+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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+
+/* Problems and other issues to resolve.
+
+ (1) BFD expects there to be some fixed number of "sections" in
+ the object file. I.E. there is a "section_count" variable in the
+ bfd structure which contains the number of sections. However, ELF
+ supports multiple "views" of a file. In particular, with current
+ implementations, executable files typically have two tables, a
+ program header table and a section header table, both of which
+ partition the executable.
+
+ In ELF-speak, the "linking view" of the file uses the section header
+ table to access "sections" within the file, and the "execution view"
+ uses the program header table to access "segments" within the file.
+ "Segments" typically may contain all the data from one or more
+ "sections".
+
+ Note that the section header table is optional in ELF executables,
+ but it is this information that is most useful to gdb. If the
+ section header table is missing, then gdb should probably try
+ to make do with the program header table. (FIXME)
+
+*/
+
+#include <string.h> /* For strrchr and friends */
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libelf.h"
+
+#define Elf_External_Ehdr NAME(Elf,External_Ehdr)
+#define Elf_Internal_Ehdr NAME(Elf,Internal_Ehdr)
+#define Elf_External_Sym NAME(Elf,External_Sym)
+#define Elf_Internal_Sym NAME(Elf,Internal_Sym)
+#define Elf_External_Shdr NAME(Elf,External_Shdr)
+#define Elf_Internal_Shdr NAME(Elf,Internal_Shdr)
+#define Elf_External_Phdr NAME(Elf,External_Phdr)
+#define Elf_Internal_Phdr NAME(Elf,Internal_Phdr)
+#define Elf_External_Rel NAME(Elf,External_Rel)
+#define Elf_External_Rela NAME(Elf,External_Rela)
+#define Elf_Internal_Rel NAME(Elf,Internal_Rel)
+#define Elf_Internal_Rela NAME(Elf,Internal_Rela)
+
+#define elf_symbol_type NAME(elf,symbol_type)
+#define elf_internal_shdr NAME(elf,internal_shdr)
+#define elf_backend_data NAME(elf,backend_data)
+
+#define elf_core_file_failing_command NAME(bfd_elf,core_file_failing_command)
+#define elf_core_file_failing_signal NAME(bfd_elf,core_file_failing_signal)
+#define elf_core_file_matches_executable_p NAME(bfd_elf,core_file_matches_executable_p)
+#define elf_object_p NAME(bfd_elf,object_p)
+#define elf_core_file_p NAME(bfd_elf,core_file_p)
+#define elf_mkobject NAME(bfd_elf,mkobject)
+#define elf_write_object_contents NAME(bfd_elf,write_object_contents)
+#define elf_get_symtab_upper_bound NAME(bfd_elf,get_symtab_upper_bound)
+#define elf_get_reloc_upper_bound NAME(bfd_elf,get_reloc_upper_bound)
+#define elf_canonicalize_reloc NAME(bfd_elf,canonicalize_reloc)
+#define elf_get_symtab NAME(bfd_elf,get_symtab)
+#define elf_make_empty_symbol NAME(bfd_elf,make_empty_symbol)
+#define elf_get_symbol_info NAME(bfd_elf,get_symbol_info)
+#define elf_print_symbol NAME(bfd_elf,print_symbol)
+#define elf_get_lineno NAME(bfd_elf,get_lineno)
+#define elf_set_arch_mach NAME(bfd_elf,set_arch_mach)
+#define elf_find_nearest_line NAME(bfd_elf,find_nearest_line)
+#define elf_sizeof_headers NAME(bfd_elf,sizeof_headers)
+#define elf_set_section_contents NAME(bfd_elf,set_section_contents)
+#define elf_no_info_to_howto NAME(bfd_elf,no_info_to_howto)
+#define elf_no_info_to_howto_rel NAME(bfd_elf,no_info_to_howto_rel)
+#define elf_get_sect_thunk NAME(bfd_elf,get_sect_thunk)
+#define elf_hash NAME(bfd_elf,hash)
+
+
+#ifdef HAVE_PROCFS /* Some core file support requires host /proc files */
+#include <sys/procfs.h>
+#else
+#define bfd_prstatus(abfd, descdata, descsz, filepos) /* Define away */
+#define bfd_fpregset(abfd, descdata, descsz, filepos) /* Define away */
+#define bfd_prpsinfo(abfd, descdata, descsz, filepos) /* Define away */
+#endif
+
+#ifndef INLINE
+#if __GNUC__ >= 2
+#define INLINE __inline__
+#else
+#define INLINE
+#endif
+#endif
+
+/* Forward declarations of static functions */
+
+static char * elf_read PARAMS ((bfd *, long, int));
+
+static struct sec * section_from_elf_index PARAMS ((bfd *, int));
+
+static int elf_section_from_bfd_section PARAMS ((bfd *, struct sec *));
+
+static boolean elf_slurp_symbol_table PARAMS ((bfd *, asymbol **));
+
+static char * elf_get_str_section PARAMS ((bfd *, unsigned int));
+
+static int elf_symbol_from_bfd_symbol PARAMS ((bfd *,
+ struct symbol_cache_entry **));
+
+static boolean elf_map_symbols PARAMS ((bfd *));
+
+/* Some private data is stashed away for future use using the tdata pointer
+ in the bfd structure. */
+
+struct elf_obj_tdata
+{
+ Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */
+ Elf_Internal_Shdr *elf_sect_ptr;
+ struct strtab *strtab_ptr;
+ int symtab_section;
+ int num_locals;
+ int num_globals;
+ int *symtab_map;
+ void *prstatus; /* The raw /proc prstatus structure */
+ void *prpsinfo; /* The raw /proc prpsinfo structure */
+ Elf_External_Sym *raw_syms;
+ Elf_Internal_Sym *internal_syms;
+ elf_symbol_type *symbols;
+};
+
+#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
+#define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
+#define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
+#define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr)
+#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
+#define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals)
+#define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals)
+#define elf_symtab_map(bfd) (elf_tdata(bfd) -> symtab_map)
+#define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
+#define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
+#define obj_symbols(bfd) (elf_tdata(bfd) -> symbols)
+#define obj_raw_syms(bfd) (elf_tdata(bfd) -> raw_syms)
+#define obj_internal_syms(bfd) (elf_tdata(bfd) -> internal_syms)
+
+/* Translate an ELF symbol in external format into an ELF symbol in internal
+ format. */
+
+static void
+DEFUN (elf_swap_symbol_in, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_External_Sym * src AND
+ Elf_Internal_Sym * dst)
+{
+ dst->st_name = bfd_h_get_32 (abfd, (bfd_byte *) src->st_name);
+ dst->st_value = bfd_h_get_32 (abfd, (bfd_byte *) src->st_value);
+ dst->st_size = bfd_h_get_32 (abfd, (bfd_byte *) src->st_size);
+ dst->st_info = bfd_h_get_8 (abfd, (bfd_byte *) src->st_info);
+ dst->st_other = bfd_h_get_8 (abfd, (bfd_byte *) src->st_other);
+ dst->st_shndx = bfd_h_get_16 (abfd, (bfd_byte *) src->st_shndx);
+}
+
+/* Translate an ELF symbol in internal format into an ELF symbol in external
+ format. */
+
+static void
+DEFUN (elf_swap_symbol_out, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_Internal_Sym * src AND
+ Elf_External_Sym * dst)
+{
+ bfd_h_put_32 (abfd, src->st_name, dst->st_name);
+ bfd_h_put_32 (abfd, src->st_value, dst->st_value);
+ bfd_h_put_32 (abfd, src->st_size, dst->st_size);
+ bfd_h_put_8 (abfd, src->st_info, dst->st_info);
+ bfd_h_put_8 (abfd, src->st_other, dst->st_other);
+ bfd_h_put_16 (abfd, src->st_shndx, dst->st_shndx);
+}
+
+
+/* Translate an ELF file header in external format into an ELF file header in
+ internal format. */
+
+static void
+DEFUN (elf_swap_ehdr_in, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_External_Ehdr * src AND
+ Elf_Internal_Ehdr * dst)
+{
+ memcpy (dst->e_ident, src->e_ident, EI_NIDENT);
+ dst->e_type = bfd_h_get_16 (abfd, (bfd_byte *) src->e_type);
+ dst->e_machine = bfd_h_get_16 (abfd, (bfd_byte *) src->e_machine);
+ dst->e_version = bfd_h_get_32 (abfd, (bfd_byte *) src->e_version);
+ dst->e_entry = bfd_h_get_32 (abfd, (bfd_byte *) src->e_entry);
+ dst->e_phoff = bfd_h_get_32 (abfd, (bfd_byte *) src->e_phoff);
+ dst->e_shoff = bfd_h_get_32 (abfd, (bfd_byte *) src->e_shoff);
+ dst->e_flags = bfd_h_get_32 (abfd, (bfd_byte *) src->e_flags);
+ dst->e_ehsize = bfd_h_get_16 (abfd, (bfd_byte *) src->e_ehsize);
+ dst->e_phentsize = bfd_h_get_16 (abfd, (bfd_byte *) src->e_phentsize);
+ dst->e_phnum = bfd_h_get_16 (abfd, (bfd_byte *) src->e_phnum);
+ dst->e_shentsize = bfd_h_get_16 (abfd, (bfd_byte *) src->e_shentsize);
+ dst->e_shnum = bfd_h_get_16 (abfd, (bfd_byte *) src->e_shnum);
+ dst->e_shstrndx = bfd_h_get_16 (abfd, (bfd_byte *) src->e_shstrndx);
+}
+
+/* Translate an ELF file header in internal format into an ELF file header in
+ external format. */
+
+static void
+DEFUN (elf_swap_ehdr_out, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_Internal_Ehdr * src AND
+ Elf_External_Ehdr * dst)
+{
+ memcpy (dst->e_ident, src->e_ident, EI_NIDENT);
+ /* note that all elements of dst are *arrays of unsigned char* already... */
+ bfd_h_put_16 (abfd, src->e_type, dst->e_type);
+ bfd_h_put_16 (abfd, src->e_machine, dst->e_machine);
+ bfd_h_put_32 (abfd, src->e_version, dst->e_version);
+ bfd_h_put_32 (abfd, src->e_entry, dst->e_entry);
+ bfd_h_put_32 (abfd, src->e_phoff, dst->e_phoff);
+ bfd_h_put_32 (abfd, src->e_shoff, dst->e_shoff);
+ bfd_h_put_32 (abfd, src->e_flags, dst->e_flags);
+ bfd_h_put_16 (abfd, src->e_ehsize, dst->e_ehsize);
+ bfd_h_put_16 (abfd, src->e_phentsize, dst->e_phentsize);
+ bfd_h_put_16 (abfd, src->e_phnum, dst->e_phnum);
+ bfd_h_put_16 (abfd, src->e_shentsize, dst->e_shentsize);
+ bfd_h_put_16 (abfd, src->e_shnum, dst->e_shnum);
+ bfd_h_put_16 (abfd, src->e_shstrndx, dst->e_shstrndx);
+}
+
+
+/* Translate an ELF section header table entry in external format into an
+ ELF section header table entry in internal format. */
+
+static void
+DEFUN (elf_swap_shdr_in, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_External_Shdr * src AND
+ Elf_Internal_Shdr * dst)
+{
+ dst->sh_name = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_name);
+ dst->sh_type = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_type);
+ dst->sh_flags = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_flags);
+ dst->sh_addr = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_addr);
+ dst->sh_offset = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_offset);
+ dst->sh_size = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_size);
+ dst->sh_link = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_link);
+ dst->sh_info = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_info);
+ dst->sh_addralign = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_addralign);
+ dst->sh_entsize = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_entsize);
+ /* we haven't done any processing on it yet, so... */
+ dst->rawdata = (void *) 0;
+}
+
+/* Translate an ELF section header table entry in internal format into an
+ ELF section header table entry in external format. */
+
+static void
+DEFUN (elf_swap_shdr_out, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_Internal_Shdr * src AND
+ Elf_External_Shdr * dst)
+{
+ /* note that all elements of dst are *arrays of unsigned char* already... */
+ bfd_h_put_32 (abfd, src->sh_name, dst->sh_name);
+ bfd_h_put_32 (abfd, src->sh_type, dst->sh_type);
+ bfd_h_put_32 (abfd, src->sh_flags, dst->sh_flags);
+ bfd_h_put_32 (abfd, src->sh_addr, dst->sh_addr);
+ bfd_h_put_32 (abfd, src->sh_offset, dst->sh_offset);
+ bfd_h_put_32 (abfd, src->sh_size, dst->sh_size);
+ bfd_h_put_32 (abfd, src->sh_link, dst->sh_link);
+ bfd_h_put_32 (abfd, src->sh_info, dst->sh_info);
+ bfd_h_put_32 (abfd, src->sh_addralign, dst->sh_addralign);
+ bfd_h_put_32 (abfd, src->sh_entsize, dst->sh_entsize);
+}
+
+
+/* Translate an ELF program header table entry in external format into an
+ ELF program header table entry in internal format. */
+
+static void
+DEFUN (elf_swap_phdr_in, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_External_Phdr * src AND
+ Elf_Internal_Phdr * dst)
+{
+ dst->p_type = bfd_h_get_32 (abfd, (bfd_byte *) src->p_type);
+ dst->p_offset = bfd_h_get_32 (abfd, (bfd_byte *) src->p_offset);
+ dst->p_vaddr = bfd_h_get_32 (abfd, (bfd_byte *) src->p_vaddr);
+ dst->p_paddr = bfd_h_get_32 (abfd, (bfd_byte *) src->p_paddr);
+ dst->p_filesz = bfd_h_get_32 (abfd, (bfd_byte *) src->p_filesz);
+ dst->p_memsz = bfd_h_get_32 (abfd, (bfd_byte *) src->p_memsz);
+ dst->p_flags = bfd_h_get_32 (abfd, (bfd_byte *) src->p_flags);
+ dst->p_align = bfd_h_get_32 (abfd, (bfd_byte *) src->p_align);
+}
+
+/* ... */
+
+static void
+DEFUN (elf_swap_phdr_out, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_Internal_Phdr * src AND
+ Elf_External_Phdr * dst)
+{
+ /* note that all elements of dst are *arrays of unsigned char* already... */
+ bfd_h_put_32 (abfd, src->p_type, dst->p_type);
+ bfd_h_put_32 (abfd, src->p_offset, dst->p_offset);
+ bfd_h_put_32 (abfd, src->p_vaddr, dst->p_vaddr);
+ bfd_h_put_32 (abfd, src->p_paddr, dst->p_paddr);
+ bfd_h_put_32 (abfd, src->p_filesz, dst->p_filesz);
+ bfd_h_put_32 (abfd, src->p_memsz, dst->p_memsz);
+ bfd_h_put_32 (abfd, src->p_flags, dst->p_flags);
+ bfd_h_put_32 (abfd, src->p_align, dst->p_align);
+}
+
+/* Translate an ELF reloc from external format to internal format. */
+static void
+DEFUN (elf_swap_reloc_in, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_External_Rel * src AND
+ Elf_Internal_Rel * dst)
+{
+ dst->r_offset = bfd_h_get_32 (abfd, (bfd_byte *) src->r_offset);
+ dst->r_info = bfd_h_get_32 (abfd, (bfd_byte *) src->r_info);
+}
+
+static void
+DEFUN (elf_swap_reloca_in, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_External_Rela * src AND
+ Elf_Internal_Rela * dst)
+{
+ dst->r_offset = bfd_h_get_32 (abfd, (bfd_byte *) src->r_offset);
+ dst->r_info = bfd_h_get_32 (abfd, (bfd_byte *) src->r_info);
+ dst->r_addend = bfd_h_get_32 (abfd, (bfd_byte *) src->r_addend);
+}
+
+/* Translate an ELF reloc from internal format to external format. */
+static void
+DEFUN (elf_swap_reloc_out, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_Internal_Rel * src AND
+ Elf_External_Rel * dst)
+{
+ bfd_h_put_32 (abfd, src->r_offset, dst->r_offset);
+ bfd_h_put_32 (abfd, src->r_info, dst->r_info);
+}
+
+static void
+DEFUN (elf_swap_reloca_out, (abfd, src, dst),
+ bfd * abfd AND
+ Elf_Internal_Rela * src AND
+ Elf_External_Rela * dst)
+{
+ bfd_h_put_32 (abfd, src->r_offset, dst->r_offset);
+ bfd_h_put_32 (abfd, src->r_info, dst->r_info);
+ bfd_h_put_32 (abfd, src->r_addend, dst->r_addend);
+}
+
+/*
+INTERNAL_FUNCTION
+ bfd_elf_find_section
+
+SYNOPSIS
+ struct elf32_internal_shdr *bfd_elf32_find_section (bfd *abfd, char *name);
+
+DESCRIPTION
+ Helper functions for GDB to locate the string tables.
+ Since BFD hides string tables from callers, GDB needs to use an
+ internal hook to find them. Sun's .stabstr, in particular,
+ isn't even pointed to by the .stab section, so ordinary
+ mechanisms wouldn't work to find it, even if we had some.
+*/
+
+struct elf_internal_shdr *
+DEFUN (NAME (bfd_elf,find_section), (abfd, name),
+ bfd * abfd AND
+ char *name)
+{
+ Elf_Internal_Shdr *i_shdrp;
+ Elf_Internal_Shdr *gotit = NULL;
+ char *shstrtab;
+ unsigned int max;
+ unsigned int i;
+
+ i_shdrp = elf_elfsections (abfd);
+ if (i_shdrp != NULL)
+ {
+ shstrtab = elf_get_str_section (abfd, elf_elfheader (abfd)->e_shstrndx);
+ if (shstrtab != NULL)
+ {
+ max = elf_elfheader (abfd)->e_shnum;
+ for (i = 1; i < max; i++)
+ {
+ if (!strcmp (&shstrtab[i_shdrp[i].sh_name], name))
+ {
+ gotit = &i_shdrp[i];
+ }
+ }
+ }
+ }
+ return gotit;
+}
+
+/* End of GDB support. */
+
+static char *
+DEFUN (elf_get_str_section, (abfd, shindex),
+ bfd * abfd AND
+ unsigned int shindex)
+{
+ Elf_Internal_Shdr *i_shdrp;
+ char *shstrtab = NULL;
+ unsigned int offset;
+ unsigned int shstrtabsize;
+
+ i_shdrp = elf_elfsections (abfd);
+ if (i_shdrp != NULL)
+ {
+ shstrtab = i_shdrp[shindex].rawdata;
+ if (shstrtab == NULL)
+ {
+ /* No cached one, attempt to read, and cache what we read. */
+ offset = i_shdrp[shindex].sh_offset;
+ shstrtabsize = i_shdrp[shindex].sh_size;
+ shstrtab = elf_read (abfd, offset, shstrtabsize);
+ i_shdrp[shindex].rawdata = (void *) shstrtab;
+ }
+ }
+ return shstrtab;
+}
+
+static char *
+DEFUN (elf_string_from_elf_section, (abfd, shindex, strindex),
+ bfd * abfd AND
+ unsigned int shindex AND
+ unsigned int strindex)
+{
+ Elf_Internal_Shdr *hdr;
+
+ if (strindex == 0)
+ return "";
+
+ hdr = elf_elfsections (abfd) + shindex;
+
+ if (!hdr->rawdata
+ && elf_get_str_section (abfd, shindex) == NULL)
+ return NULL;
+
+ return ((char *) hdr->rawdata) + strindex;
+}
+
+static INLINE char *
+elf_string_from_elf_strtab (abfd, strindex)
+ bfd *abfd;
+ int strindex;
+{
+ return elf_string_from_elf_section (abfd, elf_elfheader (abfd)->e_shstrndx,
+ strindex);
+}
+
+/* Create a new bfd section from an ELF section header. */
+
+static boolean
+DEFUN (bfd_section_from_shdr, (abfd, shindex),
+ bfd * abfd AND
+ unsigned int shindex)
+{
+ Elf_Internal_Shdr *i_shdrp = elf_elfsections (abfd);
+ Elf_Internal_Shdr *hdr = i_shdrp + shindex;
+ asection *newsect;
+ char *name;
+
+ name = elf_string_from_elf_strtab (abfd, hdr->sh_name);
+
+ switch (hdr->sh_type)
+ {
+
+ case SHT_NULL:
+ /* inactive section. Throw it away. */
+ return true;
+
+ case SHT_PROGBITS:
+ /* Bits that get saved. This one is real. */
+ if (!hdr->rawdata)
+ {
+ newsect = bfd_make_section (abfd, name);
+ if (newsect != NULL)
+ {
+ newsect->vma = hdr->sh_addr;
+ newsect->_raw_size = hdr->sh_size;
+ newsect->filepos = hdr->sh_offset; /* so we can read back the bits */
+ newsect->flags |= SEC_HAS_CONTENTS;
+ newsect->alignment_power = hdr->sh_addralign;
+
+ if (hdr->sh_flags & SHF_ALLOC)
+ {
+ newsect->flags |= SEC_ALLOC;
+ newsect->flags |= SEC_LOAD;
+ }
+
+ if (!(hdr->sh_flags & SHF_WRITE))
+ newsect->flags |= SEC_READONLY;
+
+ if (hdr->sh_flags & SHF_EXECINSTR)
+ newsect->flags |= SEC_CODE; /* FIXME: may only contain SOME code */
+ else
+ newsect->flags |= SEC_DATA;
+
+ hdr->rawdata = (void *) newsect;
+ }
+ }
+ return true;
+
+ case SHT_NOBITS:
+ /* Bits that get saved. This one is real. */
+ if (!hdr->rawdata)
+ {
+ newsect = bfd_make_section (abfd, name);
+ if (newsect != NULL)
+ {
+ newsect->vma = hdr->sh_addr;
+ newsect->_raw_size = hdr->sh_size;
+ newsect->filepos = hdr->sh_offset; /* fake */
+ newsect->alignment_power = hdr->sh_addralign;
+ if (hdr->sh_flags & SHF_ALLOC)
+ newsect->flags |= SEC_ALLOC;
+
+ if (!(hdr->sh_flags & SHF_WRITE))
+ newsect->flags |= SEC_READONLY;
+
+ if (hdr->sh_flags & SHF_EXECINSTR)
+ newsect->flags |= SEC_CODE; /* FIXME: may only contain SOME code */
+ else
+ newsect->flags |= SEC_DATA;
+
+ hdr->rawdata = (void *) newsect;
+ }
+ }
+ return true;
+
+ case SHT_SYMTAB: /* A symbol table */
+ BFD_ASSERT (hdr->sh_entsize == sizeof (Elf_External_Sym));
+ elf_onesymtab (abfd) = shindex;
+ abfd->flags |= HAS_SYMS;
+ return true;
+
+ case SHT_STRTAB: /* A string table */
+ return true;
+
+ case SHT_REL:
+ case SHT_RELA:
+ /* *these* do a lot of work -- but build no sections! */
+ /* the spec says there can be multiple strtabs, but only one symtab */
+ /* but there can be lots of REL* sections. */
+ /* FIXME: The above statement is wrong! There are typically at least
+ two symbol tables in a dynamically linked executable, ".dynsym"
+ which is the dynamic linkage symbol table and ".symtab", which is
+ the "traditional" symbol table. -fnf */
+
+ {
+ asection *target_sect;
+ int use_rela_p = get_elf_backend_data (abfd)->use_rela_p;
+
+ /* Don't allow REL relocations on a machine that uses RELA and
+ vice versa. */
+ /* @@ Actually, the generic ABI does suggest that both might be
+ used in one file. But the four ABI Processor Supplements I
+ have access to right now all specify that only one is used on
+ each of those architectures. It's conceivable that, e.g., a
+ bunch of absolute 32-bit relocs might be more compact in REL
+ form even on a RELA machine... */
+ BFD_ASSERT (!(use_rela_p && (hdr->sh_type == SHT_REL)));
+ BFD_ASSERT (!(!use_rela_p && (hdr->sh_type == SHT_RELA)));
+ BFD_ASSERT (hdr->sh_entsize ==
+ (use_rela_p
+ ? sizeof (Elf32_External_Rela)
+ : sizeof (Elf32_External_Rel)));
+
+ bfd_section_from_shdr (abfd, hdr->sh_link); /* symbol table */
+ bfd_section_from_shdr (abfd, hdr->sh_info); /* target */
+ target_sect = section_from_elf_index (abfd, hdr->sh_info);
+ if (target_sect == NULL)
+ return false;
+
+#if 0
+ /* FIXME: We are only prepared to read one symbol table, so
+ do NOT read the dynamic symbol table since it is only a
+ subset of the full symbol table. Also see comment above. -fnf */
+ if (!elf_slurp_symbol_table (abfd, i_shdrp + hdr->sh_link))
+ return false;
+#endif
+
+ target_sect->reloc_count = hdr->sh_size / hdr->sh_entsize;
+ target_sect->flags |= SEC_RELOC;
+ target_sect->relocation = 0;
+ target_sect->rel_filepos = hdr->sh_offset;
+ return true;
+ }
+ break;
+
+ case SHT_HASH:
+ case SHT_DYNAMIC:
+ case SHT_DYNSYM: /* could treat this like symtab... */
+#if 0
+ fprintf (stderr, "Dynamic Linking sections not yet supported.\n");
+ BFD_FAIL ();
+#endif
+ break;
+
+ case SHT_NOTE:
+#if 0
+ fprintf (stderr, "Note Sections not yet supported.\n");
+ BFD_FAIL ();
+#endif
+ break;
+
+ case SHT_SHLIB:
+#if 0
+ fprintf (stderr, "SHLIB Sections not supported (and non conforming.)\n");
+#endif
+ return true;
+
+ default:
+ break;
+ }
+
+ return true;
+}
+
+static struct strtab *
+DEFUN (bfd_new_strtab, (abfd),
+ bfd * abfd)
+{
+ struct strtab *ss;
+
+ ss = (struct strtab *) bfd_xmalloc (sizeof (struct strtab));
+ ss->tab = bfd_xmalloc (1);
+ BFD_ASSERT (ss->tab != 0);
+ *ss->tab = 0;
+ ss->nentries = 0;
+ ss->length = 1;
+
+ return ss;
+}
+
+int
+DEFUN (bfd_add_to_strtab, (abfd, ss, str),
+ bfd * abfd AND
+ struct strtab *ss AND
+ CONST char *str)
+{
+ /* should search first, but for now: */
+ /* include the trailing NUL */
+ int ln = strlen (str) + 1;
+
+ /* should this be using obstacks? */
+ ss->tab = realloc (ss->tab, ss->length + ln);
+
+ BFD_ASSERT (ss->tab != 0);
+ strcpy (ss->tab + ss->length, str);
+ ss->nentries++;
+ ss->length += ln;
+
+ return ss->length - ln;
+}
+
+static int
+DEFUN (bfd_add_2_to_strtab, (abfd, ss, str, str2),
+ bfd * abfd AND
+ struct strtab *ss AND
+ char *str AND
+ CONST char *str2)
+{
+ /* should search first, but for now: */
+ /* include the trailing NUL */
+ int ln = strlen (str) + strlen (str2) + 1;
+
+ /* should this be using obstacks? */
+ if (ss->length)
+ ss->tab = realloc (ss->tab, ss->length + ln);
+ else
+ ss->tab = bfd_xmalloc (ln);
+
+ BFD_ASSERT (ss->tab != 0);
+ strcpy (ss->tab + ss->length, str);
+ strcpy (ss->tab + ss->length + strlen (str), str2);
+ ss->nentries++;
+ ss->length += ln;
+
+ return ss->length - ln;
+}
+
+/* Create a new ELF section from a bfd section. */
+
+static boolean
+DEFUN (bfd_shdr_from_section, (abfd, hdr, shstrtab, indx),
+ bfd * abfd AND
+ Elf_Internal_Shdr * hdr AND
+ struct strtab *shstrtab AND
+ int indx)
+{
+ asection *sect;
+ int ndx;
+
+ /* figure out out to write the section name from the bfd section name. MWE */
+
+ sect = abfd->sections;
+ for (ndx = indx; --ndx;)
+ {
+ sect = sect->next;
+ }
+ hdr[indx].sh_name = bfd_add_to_strtab (abfd, shstrtab,
+ bfd_section_name (abfd, sect));
+ hdr[indx].sh_addr = sect->vma;
+ hdr[indx].sh_size = sect->_raw_size;
+ hdr[indx].sh_addralign = sect->alignment_power;
+ hdr[indx].sh_flags = 0;
+ /* these need to be preserved on */
+ hdr[indx].sh_link = 0;
+ hdr[indx].sh_info = 0;
+ hdr[indx].sh_entsize = 0;
+
+ hdr[indx].sh_type = 0;
+ if (sect->flags & SEC_RELOC)
+ {
+ int use_rela_p = get_elf_backend_data (abfd)->use_rela_p;
+ hdr[indx].sh_type = use_rela_p ? SHT_RELA : SHT_REL;
+ }
+
+ if (sect->flags & SEC_HAS_CONTENTS)
+ {
+ hdr[indx].sh_offset = sect->filepos;
+ hdr[indx].sh_size = sect->_raw_size;
+ }
+ if (sect->flags & SEC_ALLOC)
+ {
+ hdr[indx].sh_flags |= SHF_ALLOC;
+ if (sect->flags & SEC_LOAD)
+ {
+ /* do something with sh_type ? */
+ }
+ }
+ if (!(sect->flags & SEC_READONLY))
+ hdr[indx].sh_flags |= SHF_WRITE;
+
+ if (sect->flags & SEC_CODE)
+ hdr[indx].sh_flags |= SHF_EXECINSTR;
+
+ return true;
+}
+
+/* Create a new bfd section from an ELF program header.
+
+ Since program segments have no names, we generate a synthetic name
+ of the form segment<NUM>, where NUM is generally the index in the
+ program header table. For segments that are split (see below) we
+ generate the names segment<NUM>a and segment<NUM>b.
+
+ Note that some program segments may have a file size that is different than
+ (less than) the memory size. All this means is that at execution the
+ system must allocate the amount of memory specified by the memory size,
+ but only initialize it with the first "file size" bytes read from the
+ file. This would occur for example, with program segments consisting
+ of combined data+bss.
+
+ To handle the above situation, this routine generates TWO bfd sections
+ for the single program segment. The first has the length specified by
+ the file size of the segment, and the second has the length specified
+ by the difference between the two sizes. In effect, the segment is split
+ into it's initialized and uninitialized parts.
+
+ */
+
+static boolean
+DEFUN (bfd_section_from_phdr, (abfd, hdr, index),
+ bfd * abfd AND
+ Elf_Internal_Phdr * hdr AND
+ int index)
+{
+ asection *newsect;
+ char *name;
+ char namebuf[64];
+ int split;
+
+ split = ((hdr->p_memsz > 0) &&
+ (hdr->p_filesz > 0) &&
+ (hdr->p_memsz > hdr->p_filesz));
+ sprintf (namebuf, split ? "segment%da" : "segment%d", index);
+ name = bfd_alloc (abfd, strlen (namebuf) + 1);
+ strcpy (name, namebuf);
+ newsect = bfd_make_section (abfd, name);
+ newsect->vma = hdr->p_vaddr;
+ newsect->_raw_size = hdr->p_filesz;
+ newsect->filepos = hdr->p_offset;
+ newsect->flags |= SEC_HAS_CONTENTS;
+ if (hdr->p_type == PT_LOAD)
+ {
+ newsect->flags |= SEC_ALLOC;
+ newsect->flags |= SEC_LOAD;
+ if (hdr->p_flags & PF_X)
+ {
+ /* FIXME: all we known is that it has execute PERMISSION,
+ may be data. */
+ newsect->flags |= SEC_CODE;
+ }
+ }
+ if (!(hdr->p_flags & PF_W))
+ {
+ newsect->flags |= SEC_READONLY;
+ }
+
+ if (split)
+ {
+ sprintf (namebuf, "segment%db", index);
+ name = bfd_alloc (abfd, strlen (namebuf) + 1);
+ strcpy (name, namebuf);
+ newsect = bfd_make_section (abfd, name);
+ newsect->vma = hdr->p_vaddr + hdr->p_filesz;
+ newsect->_raw_size = hdr->p_memsz - hdr->p_filesz;
+ if (hdr->p_type == PT_LOAD)
+ {
+ newsect->flags |= SEC_ALLOC;
+ if (hdr->p_flags & PF_X)
+ newsect->flags |= SEC_CODE;
+ }
+ if (!(hdr->p_flags & PF_W))
+ newsect->flags |= SEC_READONLY;
+ }
+
+ return true;
+}
+
+#ifdef HAVE_PROCFS
+
+static void
+DEFUN (bfd_prstatus, (abfd, descdata, descsz, filepos),
+ bfd * abfd AND
+ char *descdata AND
+ int descsz AND
+ long filepos)
+{
+ asection *newsect;
+ prstatus_t *status = (prstatus_t *) 0;
+
+ if (descsz == sizeof (prstatus_t))
+ {
+ newsect = bfd_make_section (abfd, ".reg");
+ newsect->_raw_size = sizeof (status->pr_reg);
+ newsect->filepos = filepos + (long) &status->pr_reg;
+ newsect->flags = SEC_ALLOC | SEC_HAS_CONTENTS;
+ newsect->alignment_power = 2;
+ if ((core_prstatus (abfd) = bfd_alloc (abfd, descsz)) != NULL)
+ {
+ memcpy (core_prstatus (abfd), descdata, descsz);
+ }
+ }
+}
+
+/* Stash a copy of the prpsinfo structure away for future use. */
+
+static void
+DEFUN (bfd_prpsinfo, (abfd, descdata, descsz, filepos),
+ bfd * abfd AND
+ char *descdata AND
+ int descsz AND
+ long filepos)
+{
+ asection *newsect;
+
+ if (descsz == sizeof (prpsinfo_t))
+ {
+ if ((core_prpsinfo (abfd) = bfd_alloc (abfd, descsz)) != NULL)
+ {
+ memcpy (core_prpsinfo (abfd), descdata, descsz);
+ }
+ }
+}
+
+static void
+DEFUN (bfd_fpregset, (abfd, descdata, descsz, filepos),
+ bfd * abfd AND
+ char *descdata AND
+ int descsz AND
+ long filepos)
+{
+ asection *newsect;
+
+ newsect = bfd_make_section (abfd, ".reg2");
+ newsect->_raw_size = descsz;
+ newsect->filepos = filepos;
+ newsect->flags = SEC_ALLOC | SEC_HAS_CONTENTS;
+ newsect->alignment_power = 2;
+}
+
+#endif /* HAVE_PROCFS */
+
+/* Return a pointer to the args (including the command name) that were
+ seen by the program that generated the core dump. Note that for
+ some reason, a spurious space is tacked onto the end of the args
+ in some (at least one anyway) implementations, so strip it off if
+ it exists. */
+
+char *
+DEFUN (elf_core_file_failing_command, (abfd),
+ bfd * abfd)
+{
+#ifdef HAVE_PROCFS
+ if (core_prpsinfo (abfd))
+ {
+ prpsinfo_t *p = core_prpsinfo (abfd);
+ char *scan = p->pr_psargs;
+ while (*scan++)
+ {;
+ }
+ scan -= 2;
+ if ((scan > p->pr_psargs) && (*scan == ' '))
+ {
+ *scan = '\000';
+ }
+ return p->pr_psargs;
+ }
+#endif
+ return NULL;
+}
+
+/* Return the number of the signal that caused the core dump. Presumably,
+ since we have a core file, we got a signal of some kind, so don't bother
+ checking the other process status fields, just return the signal number.
+ */
+
+int
+DEFUN (elf_core_file_failing_signal, (abfd),
+ bfd * abfd)
+{
+#ifdef HAVE_PROCFS
+ if (core_prstatus (abfd))
+ {
+ return ((prstatus_t *) (core_prstatus (abfd)))->pr_cursig;
+ }
+#endif
+ return -1;
+}
+
+/* Check to see if the core file could reasonably be expected to have
+ come for the current executable file. Note that by default we return
+ true unless we find something that indicates that there might be a
+ problem.
+ */
+
+boolean
+DEFUN (elf_core_file_matches_executable_p, (core_bfd, exec_bfd),
+ bfd * core_bfd AND
+ bfd * exec_bfd)
+{
+#ifdef HAVE_PROCFS
+ char *corename;
+ char *execname;
+#endif
+
+ /* First, xvecs must match since both are ELF files for the same target. */
+
+ if (core_bfd->xvec != exec_bfd->xvec)
+ {
+ bfd_error = system_call_error;
+ return false;
+ }
+
+#ifdef HAVE_PROCFS
+
+ /* If no prpsinfo, just return true. Otherwise, grab the last component
+ of the exec'd pathname from the prpsinfo. */
+
+ if (core_prpsinfo (core_bfd))
+ {
+ corename = (((struct prpsinfo *) core_prpsinfo (core_bfd))->pr_fname);
+ }
+ else
+ {
+ return true;
+ }
+
+ /* Find the last component of the executable pathname. */
+
+ if ((execname = strrchr (exec_bfd->filename, '/')) != NULL)
+ {
+ execname++;
+ }
+ else
+ {
+ execname = (char *) exec_bfd->filename;
+ }
+
+ /* See if they match */
+
+ return strcmp (execname, corename) ? false : true;
+
+#else
+
+ return true;
+
+#endif /* HAVE_PROCFS */
+}
+
+/* ELF core files contain a segment of type PT_NOTE, that holds much of
+ the information that would normally be available from the /proc interface
+ for the process, at the time the process dumped core. Currently this
+ includes copies of the prstatus, prpsinfo, and fpregset structures.
+
+ Since these structures are potentially machine dependent in size and
+ ordering, bfd provides two levels of support for them. The first level,
+ available on all machines since it does not require that the host
+ have /proc support or the relevant include files, is to create a bfd
+ section for each of the prstatus, prpsinfo, and fpregset structures,
+ without any interpretation of their contents. With just this support,
+ the bfd client will have to interpret the structures itself. Even with
+ /proc support, it might want these full structures for it's own reasons.
+
+ In the second level of support, where HAVE_PROCFS is defined, bfd will
+ pick apart the structures to gather some additional information that
+ clients may want, such as the general register set, the name of the
+ exec'ed file and its arguments, the signal (if any) that caused the
+ core dump, etc.
+
+ */
+
+static boolean
+DEFUN (elf_corefile_note, (abfd, hdr),
+ bfd * abfd AND
+ Elf_Internal_Phdr * hdr)
+{
+ Elf_External_Note *x_note_p; /* Elf note, external form */
+ Elf_Internal_Note i_note; /* Elf note, internal form */
+ char *buf = NULL; /* Entire note segment contents */
+ char *namedata; /* Name portion of the note */
+ char *descdata; /* Descriptor portion of the note */
+ char *sectname; /* Name to use for new section */
+ long filepos; /* File offset to descriptor data */
+ asection *newsect;
+
+ if (hdr->p_filesz > 0
+ && (buf = (char *) bfd_xmalloc (hdr->p_filesz)) != NULL
+ && bfd_seek (abfd, hdr->p_offset, SEEK_SET) != -1
+ && bfd_read ((PTR) buf, hdr->p_filesz, 1, abfd) == hdr->p_filesz)
+ {
+ x_note_p = (Elf_External_Note *) buf;
+ while ((char *) x_note_p < (buf + hdr->p_filesz))
+ {
+ i_note.namesz = bfd_h_get_32 (abfd, (bfd_byte *) x_note_p->namesz);
+ i_note.descsz = bfd_h_get_32 (abfd, (bfd_byte *) x_note_p->descsz);
+ i_note.type = bfd_h_get_32 (abfd, (bfd_byte *) x_note_p->type);
+ namedata = x_note_p->name;
+ descdata = namedata + BFD_ALIGN (i_note.namesz, 4);
+ filepos = hdr->p_offset + (descdata - buf);
+ switch (i_note.type)
+ {
+ case NT_PRSTATUS:
+ /* process descdata as prstatus info */
+ bfd_prstatus (abfd, descdata, i_note.descsz, filepos);
+ sectname = ".prstatus";
+ break;
+ case NT_FPREGSET:
+ /* process descdata as fpregset info */
+ bfd_fpregset (abfd, descdata, i_note.descsz, filepos);
+ sectname = ".fpregset";
+ break;
+ case NT_PRPSINFO:
+ /* process descdata as prpsinfo */
+ bfd_prpsinfo (abfd, descdata, i_note.descsz, filepos);
+ sectname = ".prpsinfo";
+ break;
+ default:
+ /* Unknown descriptor, just ignore it. */
+ sectname = NULL;
+ break;
+ }
+ if (sectname != NULL)
+ {
+ newsect = bfd_make_section (abfd, sectname);
+ newsect->_raw_size = i_note.descsz;
+ newsect->filepos = filepos;
+ newsect->flags = SEC_ALLOC | SEC_HAS_CONTENTS;
+ newsect->alignment_power = 2;
+ }
+ x_note_p = (Elf_External_Note *)
+ (descdata + BFD_ALIGN (i_note.descsz, 4));
+ }
+ }
+ if (buf != NULL)
+ {
+ free (buf);
+ }
+ return true;
+
+}
+
+
+/* Read a specified number of bytes at a specified offset in an ELF
+ file, into a newly allocated buffer, and return a pointer to the
+ buffer. */
+
+static char *
+DEFUN (elf_read, (abfd, offset, size),
+ bfd * abfd AND
+ long offset AND
+ int size)
+{
+ char *buf;
+
+ if ((buf = bfd_alloc (abfd, size)) == NULL)
+ {
+ bfd_error = no_memory;
+ return NULL;
+ }
+ if (bfd_seek (abfd, offset, SEEK_SET) == -1)
+ {
+ bfd_error = system_call_error;
+ return NULL;
+ }
+ if (bfd_read ((PTR) buf, size, 1, abfd) != size)
+ {
+ bfd_error = system_call_error;
+ return NULL;
+ }
+ return buf;
+}
+
+/* Begin processing a given object.
+
+ First we validate the file by reading in the ELF header and checking
+ the magic number. */
+
+static INLINE boolean
+DEFUN (elf_file_p, (x_ehdrp), Elf_External_Ehdr * x_ehdrp)
+{
+ return ((x_ehdrp->e_ident[EI_MAG0] == ELFMAG0)
+ && (x_ehdrp->e_ident[EI_MAG1] == ELFMAG1)
+ && (x_ehdrp->e_ident[EI_MAG2] == ELFMAG2)
+ && (x_ehdrp->e_ident[EI_MAG3] == ELFMAG3));
+}
+
+bfd_target *
+DEFUN (elf_object_p, (abfd), bfd * abfd)
+{
+ Elf_External_Ehdr x_ehdr; /* Elf file header, external form */
+ Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
+ Elf_External_Shdr x_shdr; /* Section header table entry, external form */
+ Elf_Internal_Shdr *i_shdrp; /* Section header table, internal form */
+ int shindex;
+ char *shstrtab; /* Internal copy of section header stringtab */
+ struct elf_backend_data *ebd; /* Use to get ELF_ARCH stored in xvec */
+
+ /* Read in the ELF header in external format. */
+
+ if (bfd_read ((PTR) & x_ehdr, sizeof (x_ehdr), 1, abfd) != sizeof (x_ehdr))
+ {
+ bfd_error = system_call_error;
+ return NULL;
+ }
+
+ /* Now check to see if we have a valid ELF file, and one that BFD can
+ make use of. The magic number must match, the address size ('class')
+ and byte-swapping must match our XVEC entry, and it must have a
+ section header table (FIXME: See comments re sections at top of this
+ file). */
+
+ if (elf_file_p (&x_ehdr) == false)
+ {
+ wrong:
+ bfd_error = wrong_format;
+ return NULL;
+ }
+
+ if (x_ehdr.e_ident[EI_VERSION] != EV_CURRENT)
+ goto wrong;
+
+ {
+ unsigned int class = 0x12345;
+#if ARCH_SIZE == 64
+ class = ELFCLASS64;
+#endif
+#if ARCH_SIZE == 32
+ class = ELFCLASS32;
+#endif
+ if (x_ehdr.e_ident[EI_CLASS] != class)
+ goto wrong;
+ }
+
+ /* Switch xvec to match the specified byte order. */
+ switch (x_ehdr.e_ident[EI_DATA])
+ {
+ case ELFDATA2MSB: /* Big-endian */
+ if (!abfd->xvec->header_byteorder_big_p)
+ goto wrong;
+ break;
+ case ELFDATA2LSB: /* Little-endian */
+ if (abfd->xvec->header_byteorder_big_p)
+ goto wrong;
+ break;
+ case ELFDATANONE: /* No data encoding specified */
+ default: /* Unknown data encoding specified */
+ goto wrong;
+ }
+
+ /* Allocate an instance of the elf_obj_tdata structure and hook it up to
+ the tdata pointer in the bfd. */
+
+ if (NULL == (elf_tdata (abfd) = (struct elf_obj_tdata *)
+ bfd_zalloc (abfd, sizeof (struct elf_obj_tdata))))
+ {
+ bfd_error = no_memory;
+ return NULL;
+ }
+
+ /* FIXME: Any `wrong' exits below here will leak memory (tdata). */
+
+ /* Now that we know the byte order, swap in the rest of the header */
+ i_ehdrp = elf_elfheader (abfd);
+ elf_swap_ehdr_in (abfd, &x_ehdr, i_ehdrp);
+
+ /* If there is no section header table, we're hosed. */
+ if (i_ehdrp->e_shoff == 0)
+ goto wrong;
+
+ if (i_ehdrp->e_type == ET_EXEC || i_ehdrp->e_type == ET_DYN)
+ abfd->flags |= EXEC_P;
+
+ /* Retrieve the architecture information from the xvec and verify
+ that it matches the machine info stored in the ELF header.
+ This allows us to resolve ambiguous formats that might not
+ otherwise be distinguishable. */
+
+ ebd = get_elf_backend_data (abfd);
+ switch (i_ehdrp->e_machine)
+ {
+ default:
+ case EM_NONE:
+ case EM_M32:
+ /* Arguably EM_M32 should be bfd_arch_obscure, but then we would
+ need both an elf32-obscure target and an elf32-unknown target.
+ The distinction is probably not worth worrying about. */
+ if (ebd->arch != bfd_arch_unknown)
+ goto wrong;
+ bfd_default_set_arch_mach (abfd, bfd_arch_unknown, 0);
+ break;
+ case EM_SPARC:
+ if (ebd->arch != bfd_arch_sparc)
+ goto wrong;
+ bfd_default_set_arch_mach (abfd, bfd_arch_sparc, 0);
+ break;
+ case EM_386:
+ if (ebd->arch != bfd_arch_i386)
+ goto wrong;
+ bfd_default_set_arch_mach (abfd, bfd_arch_i386, 0);
+ break;
+ case EM_68K:
+ if (ebd->arch != bfd_arch_m68k)
+ goto wrong;
+ bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
+ break;
+ case EM_88K:
+ if (ebd->arch != bfd_arch_m88k)
+ goto wrong;
+ bfd_default_set_arch_mach (abfd, bfd_arch_m88k, 0);
+ break;
+ case EM_860:
+ if (ebd->arch != bfd_arch_i860)
+ goto wrong;
+ bfd_default_set_arch_mach (abfd, bfd_arch_i860, 0);
+ break;
+ case EM_MIPS:
+ if (ebd->arch != bfd_arch_mips)
+ goto wrong;
+ bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
+ break;
+ case EM_HPPA:
+ if (ebd->arch != bfd_arch_hppa)
+ goto wrong;
+ bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 0);
+ break;
+ }
+
+ /* Allocate space for a copy of the section header table in
+ internal form, seek to the section header table in the file,
+ read it in, and convert it to internal form. As a simple sanity
+ check, verify that the what BFD thinks is the size of each section
+ header table entry actually matches the size recorded in the file. */
+
+ if (i_ehdrp->e_shentsize != sizeof (x_shdr))
+ goto wrong;
+ i_shdrp = (Elf_Internal_Shdr *)
+ bfd_alloc (abfd, sizeof (*i_shdrp) * i_ehdrp->e_shnum);
+ if (!i_shdrp)
+ {
+ bfd_error = no_memory;
+ return NULL;
+ }
+ if (bfd_seek (abfd, i_ehdrp->e_shoff, SEEK_SET) == -1)
+ {
+ bfd_error = system_call_error;
+ return NULL;
+ }
+ for (shindex = 0; shindex < i_ehdrp->e_shnum; shindex++)
+ {
+ if (bfd_read ((PTR) & x_shdr, sizeof x_shdr, 1, abfd)
+ != sizeof (x_shdr))
+ {
+ bfd_error = system_call_error;
+ return NULL;
+ }
+ elf_swap_shdr_in (abfd, &x_shdr, i_shdrp + shindex);
+ }
+
+ elf_elfsections (abfd) = i_shdrp;
+
+ /* Read in the string table containing the names of the sections. We
+ will need the base pointer to this table later. */
+ /* We read this inline now, so that we don't have to go through
+ bfd_section_from_shdr with it (since this particular strtab is
+ used to find all of the ELF section names.) */
+
+ shstrtab = elf_get_str_section (abfd, i_ehdrp->e_shstrndx);
+ if (!shstrtab)
+ return NULL;
+
+ /* Once all of the section headers have been read and converted, we
+ can start processing them. Note that the first section header is
+ a dummy placeholder entry, so we ignore it.
+
+ We also watch for the symbol table section and remember the file
+ offset and section size for both the symbol table section and the
+ associated string table section. */
+
+ for (shindex = 1; shindex < i_ehdrp->e_shnum; shindex++)
+ {
+ bfd_section_from_shdr (abfd, shindex);
+ }
+
+ /* Remember the entry point specified in the ELF file header. */
+
+ bfd_get_start_address (abfd) = i_ehdrp->e_entry;
+
+ return abfd->xvec;
+}
+
+/*
+ Takes a bfd and a symbol, returns a pointer to the elf specific area
+ of the symbol if there is one.
+ */
+static INLINE elf_symbol_type *
+DEFUN (elf_symbol_from, (ignore_abfd, symbol),
+ bfd * ignore_abfd AND
+ asymbol * symbol)
+{
+ if (symbol->the_bfd->xvec->flavour != bfd_target_elf_flavour)
+ return 0;
+
+ if (symbol->the_bfd->tdata.elf_obj_data == (struct elf_obj_tdata *) NULL)
+ return 0;
+
+ return (elf_symbol_type *) symbol;
+}
+
+/* Core files are simply standard ELF formatted files that partition
+ the file using the execution view of the file (program header table)
+ rather than the linking view. In fact, there is no section header
+ table in a core file.
+
+ The process status information (including the contents of the general
+ register set) and the floating point register set are stored in a
+ segment of type PT_NOTE. We handcraft a couple of extra bfd sections
+ that allow standard bfd access to the general registers (.reg) and the
+ floating point registers (.reg2).
+
+ */
+
+bfd_target *
+DEFUN (elf_core_file_p, (abfd), bfd * abfd)
+{
+ Elf_External_Ehdr x_ehdr; /* Elf file header, external form */
+ Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
+ Elf_External_Phdr x_phdr; /* Program header table entry, external form */
+ Elf_Internal_Phdr *i_phdrp; /* Program header table, internal form */
+ unsigned int phindex;
+
+ /* Read in the ELF header in external format. */
+
+ if (bfd_read ((PTR) & x_ehdr, sizeof (x_ehdr), 1, abfd) != sizeof (x_ehdr))
+ {
+ bfd_error = system_call_error;
+ return NULL;
+ }
+
+ /* Now check to see if we have a valid ELF file, and one that BFD can
+ make use of. The magic number must match, the address size ('class')
+ and byte-swapping must match our XVEC entry, and it must have a
+ program header table (FIXME: See comments re segments at top of this
+ file). */
+
+ if (elf_file_p (&x_ehdr) == false)
+ {
+ wrong:
+ bfd_error = wrong_format;
+ return NULL;
+ }
+
+ /* FIXME, Check EI_VERSION here ! */
+
+ switch (x_ehdr.e_ident[EI_CLASS])
+ {
+ case ELFCLASSNONE: /* address size not specified */
+ goto wrong; /* No support if can't tell address size */
+ case ELFCLASS32: /* 32-bit addresses */
+ break;
+ case ELFCLASS64: /* 64-bit addresses */
+ goto wrong; /* FIXME: 64 bits not yet supported */
+ default:
+ goto wrong; /* No support if unknown address class */
+ }
+
+ /* Switch xvec to match the specified byte order. */
+ switch (x_ehdr.e_ident[EI_DATA])
+ {
+ case ELFDATA2MSB: /* Big-endian */
+ if (abfd->xvec->byteorder_big_p == false)
+ goto wrong;
+ break;
+ case ELFDATA2LSB: /* Little-endian */
+ if (abfd->xvec->byteorder_big_p == true)
+ goto wrong;
+ break;
+ case ELFDATANONE: /* No data encoding specified */
+ default: /* Unknown data encoding specified */
+ goto wrong;
+ }
+
+ /* Allocate an instance of the elf_obj_tdata structure and hook it up to
+ the tdata pointer in the bfd. */
+
+ elf_tdata (abfd) =
+ (struct elf_obj_tdata *) bfd_zalloc (abfd, sizeof (struct elf_obj_tdata));
+ if (elf_tdata (abfd) == NULL)
+ {
+ bfd_error = no_memory;
+ return NULL;
+ }
+
+ /* FIXME, `wrong' returns from this point onward, leak memory. */
+
+ /* Now that we know the byte order, swap in the rest of the header */
+ i_ehdrp = elf_elfheader (abfd);
+ elf_swap_ehdr_in (abfd, &x_ehdr, i_ehdrp);
+
+ /* If there is no program header, or the type is not a core file, then
+ we are hosed. */
+ if (i_ehdrp->e_phoff == 0 || i_ehdrp->e_type != ET_CORE)
+ goto wrong;
+
+ /* Allocate space for a copy of the program header table in
+ internal form, seek to the program header table in the file,
+ read it in, and convert it to internal form. As a simple sanity
+ check, verify that the what BFD thinks is the size of each program
+ header table entry actually matches the size recorded in the file. */
+
+ if (i_ehdrp->e_phentsize != sizeof (x_phdr))
+ goto wrong;
+ i_phdrp = (Elf_Internal_Phdr *)
+ bfd_alloc (abfd, sizeof (*i_phdrp) * i_ehdrp->e_phnum);
+ if (!i_phdrp)
+ {
+ bfd_error = no_memory;
+ return NULL;
+ }
+ if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) == -1)
+ {
+ bfd_error = system_call_error;
+ return NULL;
+ }
+ for (phindex = 0; phindex < i_ehdrp->e_phnum; phindex++)
+ {
+ if (bfd_read ((PTR) & x_phdr, sizeof (x_phdr), 1, abfd)
+ != sizeof (x_phdr))
+ {
+ bfd_error = system_call_error;
+ return NULL;
+ }
+ elf_swap_phdr_in (abfd, &x_phdr, i_phdrp + phindex);
+ }
+
+ /* Once all of the program headers have been read and converted, we
+ can start processing them. */
+
+ for (phindex = 0; phindex < i_ehdrp->e_phnum; phindex++)
+ {
+ bfd_section_from_phdr (abfd, i_phdrp + phindex, phindex);
+ if ((i_phdrp + phindex)->p_type == PT_NOTE)
+ {
+ elf_corefile_note (abfd, i_phdrp + phindex);
+ }
+ }
+
+ /* Remember the entry point specified in the ELF file header. */
+
+ bfd_get_start_address (abfd) = i_ehdrp->e_entry;
+
+ return abfd->xvec;
+}
+
+boolean
+DEFUN (elf_mkobject, (abfd), bfd * abfd)
+{
+ /* this just does initialization */
+ /* coff_mkobject zalloc's space for tdata.coff_obj_data ... */
+ elf_tdata (abfd) = (struct elf_obj_tdata *)
+ bfd_zalloc (abfd, sizeof (struct elf_obj_tdata));
+ if (elf_tdata (abfd) == 0)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+ /* since everything is done at close time, do we need any
+ initialization? */
+
+ return true;
+}
+
+/*
+ Create ELF output from BFD sections.
+
+ Essentially, just create the section header and forget about the program
+ header for now.
+
+*/
+
+static int
+elf_idx_of_sym (abfd, sym)
+ bfd *abfd;
+ asymbol *sym;
+{
+ int i;
+ for (i = 0; i < abfd->symcount; i++)
+ {
+ if (sym == (asymbol *) abfd->outsymbols[i])
+ {
+ /* sanity check */
+ BFD_ASSERT ((strcmp (sym->name, abfd->outsymbols[i]->name) == 0)
+ || (strlen (sym->name) == 0));
+ return i + 1;
+ }
+ }
+ return STN_UNDEF;
+}
+
+static void
+DEFUN (elf_make_sections, (abfd, asect, obj),
+ bfd * abfd AND
+ asection * asect AND
+ PTR obj)
+{
+ elf_sect_thunk *thunk = (elf_sect_thunk *) obj;
+ /* most of what is in bfd_shdr_from_section goes in here... */
+ /* and all of these sections generate at *least* one ELF section. */
+ int this_section;
+ int idx;
+
+ /* check if we're making a PROGBITS section... */
+ /* if ((asect->flags & SEC_ALLOC) && (asect->flags & SEC_LOAD)) */
+ /* this was too strict... what *do* we want to check here? */
+ if (1)
+ {
+ Elf_Internal_Shdr *this_hdr;
+ this_section = elf_section_from_bfd_section (abfd, asect);
+ this_hdr = &thunk->i_shdrp[this_section];
+
+ this_hdr->sh_addr = asect->vma;
+ this_hdr->sh_size = asect->_raw_size;
+ /* contents already set by elf_set_section_contents */
+
+ if (asect->flags & SEC_RELOC)
+ {
+ /* emit a reloc section, and thus strtab and symtab... */
+ Elf_Internal_Shdr *rela_hdr;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_External_Rela *outbound_relocas;
+ Elf_External_Rel *outbound_relocs;
+ int rela_section;
+ int use_rela_p = get_elf_backend_data (abfd)->use_rela_p;
+
+ symtab_hdr = &thunk->i_shdrp[thunk->symtab_section];
+
+ if (thunk->symtab_section == this_section + 1)
+ rela_section = thunk->symtab_section + 2; /* symtab + symstrtab */
+ else
+ rela_section = this_section + 1;
+ rela_hdr = &thunk->i_shdrp[rela_section];
+ rela_hdr->sh_link = thunk->symtab_section;
+ rela_hdr->sh_info = this_section;
+
+ /* orelocation has the data, reloc_count has the count... */
+ if (use_rela_p)
+ {
+ rela_hdr->sh_type = SHT_RELA;
+ rela_hdr->sh_entsize = sizeof (Elf_External_Rela);
+ rela_hdr->sh_size = rela_hdr->sh_entsize * asect->reloc_count;
+ outbound_relocas = (Elf_External_Rela *) bfd_alloc (abfd, rela_hdr->sh_size);
+
+ for (idx = 0; idx < asect->reloc_count; idx++)
+ {
+ Elf_Internal_Rela dst_rela;
+ Elf_External_Rela *src_rela;
+ arelent *ptr;
+
+ ptr = asect->orelocation[idx];
+ src_rela = outbound_relocas + idx;
+ if (!(abfd->flags & EXEC_P))
+ dst_rela.r_offset = ptr->address - asect->vma;
+ else
+ dst_rela.r_offset = ptr->address;
+
+ dst_rela.r_info
+ = ELF32_R_INFO (elf_symbol_from_bfd_symbol (abfd, ptr->sym_ptr_ptr),
+ ptr->howto->type);
+
+ dst_rela.r_addend = ptr->addend;
+ elf_swap_reloca_out (abfd, &dst_rela, src_rela);
+ }
+
+ rela_hdr->contents = (void *) outbound_relocas;
+ }
+ else
+ /* REL relocations */
+ {
+ rela_hdr->sh_type = SHT_REL;
+ rela_hdr->sh_entsize = sizeof (Elf_External_Rel);
+ rela_hdr->sh_size = rela_hdr->sh_entsize * asect->reloc_count;
+ outbound_relocs = (Elf_External_Rel *)
+ bfd_alloc (abfd, rela_hdr->sh_size);
+
+ for (idx = 0; idx < asect->reloc_count; idx++)
+ {
+ Elf_Internal_Rel dst_rel;
+ Elf_External_Rel *src_rel;
+ arelent *ptr;
+
+ ptr = asect->orelocation[idx];
+ src_rel = outbound_relocs + idx;
+ if (!(abfd->flags & EXEC_P))
+ dst_rel.r_offset = ptr->address - asect->vma;
+ else
+ dst_rel.r_offset = ptr->address;
+
+ dst_rel.r_info
+ = ELF32_R_INFO (elf_symbol_from_bfd_symbol (abfd, ptr->sym_ptr_ptr),
+ ptr->howto->type);
+
+ elf_swap_reloc_out (abfd, &dst_rel, src_rel);
+
+ /* Update the addend -- FIXME add 64 bit support. */
+#ifdef DEBUG
+ fprintf (stderr, "Updating addend: 0x%.8lx = %d, this_section = %d\n",
+ (long) ((unsigned char *) (elf_elfsections (abfd)[this_section].contents)
+ + dst_rel.r_offset), ptr->addend, this_section);
+#endif
+
+ bfd_put_32 (abfd, ptr->addend,
+ (unsigned char *) (elf_elfsections (abfd)[this_section].contents)
+ + dst_rel.r_offset);
+ }
+ rela_hdr->contents = (void *) outbound_relocs;
+ }
+ }
+ if (asect->flags & SEC_ALLOC)
+ {
+ this_hdr->sh_flags |= SHF_ALLOC;
+ if (asect->flags & SEC_LOAD)
+ {
+ /* @@ Do something with sh_type? */
+ }
+ }
+ if (!(asect->flags & SEC_READONLY))
+ this_hdr->sh_flags |= SHF_WRITE;
+
+ if (asect->flags & SEC_CODE)
+ this_hdr->sh_flags |= SHF_EXECINSTR;
+ }
+}
+
+static void
+DEFUN (elf_fake_sections, (abfd, asect, obj),
+ bfd * abfd AND
+ asection * asect AND
+ PTR obj)
+{
+ elf_sect_thunk *thunk = (elf_sect_thunk *) obj;
+ /* most of what is in bfd_shdr_from_section goes in here... */
+ /* and all of these sections generate at *least* one ELF section. */
+ int this_section;
+
+ /* check if we're making a PROGBITS section... */
+ /* if ((asect->flags & SEC_ALLOC) && (asect->flags & SEC_LOAD)) */
+ /* this was too strict... what *do* we want to check here? */
+ if (1)
+ {
+ Elf_Internal_Shdr *this_hdr;
+ this_section = thunk->i_ehdr->e_shnum++;
+ this_hdr = &thunk->i_shdrp[this_section];
+ this_hdr->sh_name =
+ bfd_add_to_strtab (abfd, thunk->shstrtab, asect->name);
+ /* we need to log the type *now* so that elf_section_from_bfd_section
+ can find us... have to set rawdata too. */
+ this_hdr->rawdata = (void *) asect;
+ this_hdr->sh_addralign = asect->alignment_power;
+ if ((asect->flags & SEC_ALLOC) && (asect->flags & SEC_LOAD))
+ this_hdr->sh_type = SHT_PROGBITS;
+ /* @@ Select conditions correctly! */
+ else if (!strcmp (asect->name, ".bss"))
+ this_hdr->sh_type = SHT_NOBITS;
+ else
+ /* what *do* we put here? */
+ this_hdr->sh_type = SHT_PROGBITS;
+
+
+ {
+ /* Emit a strtab and symtab, and possibly a reloc section. */
+ Elf_Internal_Shdr *rela_hdr;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *symstrtab_hdr;
+ int rela_section;
+ int symstrtab_section;
+
+ /* Note that only one symtab is used, so just remember it
+ for now. */
+ if (!thunk->symtab_section)
+ {
+ thunk->symtab_section = thunk->i_ehdr->e_shnum++;
+ symtab_hdr = &thunk->i_shdrp[thunk->symtab_section];
+ symtab_hdr->sh_name =
+ bfd_add_to_strtab (abfd, thunk->shstrtab, ".symtab");
+ symtab_hdr->sh_type = SHT_SYMTAB;
+ symtab_hdr->sh_entsize = sizeof (Elf_External_Sym);
+
+ symstrtab_section = thunk->i_ehdr->e_shnum++;
+ BFD_ASSERT (symstrtab_section == thunk->symtab_section + 1);
+ symstrtab_hdr = &thunk->i_shdrp[symstrtab_section];
+ symtab_hdr->sh_link = symstrtab_section;
+ symstrtab_hdr->sh_name =
+ bfd_add_to_strtab (abfd, thunk->shstrtab, ".strtab");
+ symstrtab_hdr->sh_type = SHT_STRTAB;
+
+ symtab_hdr->contents = 0;
+ symstrtab_hdr->contents = 0;
+ symstrtab_hdr->sh_size = 0;
+ }
+ else
+ symtab_hdr = &thunk->i_shdrp[thunk->symtab_section];
+
+ if (asect->flags & SEC_RELOC)
+ {
+ int use_rela_p = get_elf_backend_data (abfd)->use_rela_p;
+
+ rela_section = thunk->i_ehdr->e_shnum++;
+ rela_hdr = &thunk->i_shdrp[rela_section];
+ rela_hdr->sh_name =
+ bfd_add_2_to_strtab (abfd, thunk->shstrtab,
+ use_rela_p ? ".rela" : ".rel",
+ asect->name);
+ rela_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL;
+ rela_hdr->sh_link = thunk->symtab_section;
+ rela_hdr->sh_info = this_section;
+ rela_hdr->sh_entsize = sizeof (Elf_External_Rela);
+ }
+ }
+ if (asect->flags & SEC_ALLOC)
+ {
+ this_hdr->sh_flags |= SHF_ALLOC;
+ if (asect->flags & SEC_LOAD)
+ {
+ /* @@ Do something with sh_type? */
+ }
+ }
+ if (!(asect->flags & SEC_READONLY))
+ this_hdr->sh_flags |= SHF_WRITE;
+ if (asect->flags & SEC_CODE)
+ this_hdr->sh_flags |= SHF_EXECINSTR;
+ }
+}
+
+
+/*
+xxxINTERNAL_FUNCTION
+ bfd_elf_locate_sh
+
+xxxSYNOPSIS
+ struct elf_internal_shdr *bfd_elf_locate_sh (bfd *abfd,
+ struct strtab *strtab,
+ struct elf_internal_shdr *shdrp,
+ CONST char *name);
+
+xxxDESCRIPTION
+ Helper function to locate an ELF section header given the
+ name of a BFD section.
+*/
+
+struct elf32_internal_shdr *
+DEFUN (bfd_elf_locate_sh, (abfd, strtab, shdrp, name),
+ bfd * abfd AND
+ struct strtab *strtab AND
+ struct elf32_internal_shdr *shdrp AND
+ CONST char *name)
+{
+ Elf_Internal_Shdr *gotit = NULL;
+ int max, i;
+
+ if (shdrp != NULL && strtab != NULL)
+ {
+ max = elf_elfheader (abfd)->e_shnum;
+ for (i = 1; i < max; i++)
+ {
+ if (!strcmp (strtab->tab + shdrp[i].sh_name, name))
+ {
+ gotit = &shdrp[i];
+ }
+ }
+ }
+ return gotit;
+}
+
+/* Map symbol from it's internal number to the external number, moving
+ all local symbols to be at the head of the list. */
+
+static boolean
+DEFUN (elf_map_symbols, (abfd), bfd * abfd)
+{
+ int symcount = bfd_get_symcount (abfd);
+ asymbol **syms = bfd_get_outsymbols (abfd);
+ flagword flags;
+ int num_locals = 0;
+ int num_globals = 0;
+ int num_locals2 = 0;
+ int num_globals2 = 0;
+ int num_sections = 0;
+ int *symtab_map;
+ int idx;
+ asection *asect;
+
+#ifdef DEBUG
+ fprintf (stderr, "elf_map_symbols\n");
+ fflush (stderr);
+#endif
+
+ /* Add local symbols for each allocated section
+ FIXME -- we should only put out symbols for sections that
+ are actually relocated against. */
+ for (asect = abfd->sections; asect; asect = asect->next)
+ {
+ if (asect->flags & (SEC_LOAD | SEC_DATA | SEC_CODE))
+ num_sections++;
+ }
+
+ if (num_sections)
+ {
+ if (syms)
+ syms = (asymbol **) bfd_realloc (abfd, syms,
+ ((symcount + num_sections + 1)
+ * sizeof (asymbol *)));
+ else
+ syms = (asymbol **) bfd_alloc (abfd,
+ (num_sections + 1) * sizeof (asymbol *));
+
+ for (asect = abfd->sections; asect; asect = asect->next)
+ {
+ if (asect->flags & (SEC_LOAD | SEC_DATA | SEC_CODE))
+ {
+ asymbol *sym = syms[symcount++] = bfd_make_empty_symbol (abfd);
+ sym->the_bfd = abfd;
+ sym->name = asect->name;
+ sym->value = asect->vma;
+ sym->flags = BSF_SECTION_SYM;
+ sym->section = asect;
+ }
+ }
+
+ syms[symcount] = (asymbol *) 0;
+ bfd_set_symtab (abfd, syms, symcount);
+ }
+
+ elf_symtab_map (abfd) = symtab_map
+ = (int *) bfd_alloc (abfd, symcount * sizeof (int *));
+
+ /* Identify and classify all of the symbols. */
+ for (idx = 0; idx < symcount; idx++)
+ {
+ flags = syms[idx]->flags;
+ if (flags & (BSF_LOCAL | BSF_SECTION_SYM | BSF_FILE))
+ num_locals++;
+ else
+ num_globals++;
+ }
+
+ /* Now provide mapping information. Add +1 for skipping over the
+ dummy symbol. */
+ for (idx = 0; idx < symcount; idx++)
+ {
+ flags = syms[idx]->flags;
+ if (flags & (BSF_LOCAL | BSF_SECTION_SYM | BSF_FILE))
+ symtab_map[idx] = 1 + num_locals2++;
+ else
+ symtab_map[idx] = 1 + num_locals + num_globals2++;
+ }
+
+ elf_num_locals (abfd) = num_locals;
+ elf_num_globals (abfd) = num_globals;
+}
+
+
+static boolean
+DEFUN (elf_compute_section_file_positions, (abfd), bfd * abfd)
+{
+ Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
+ Elf_Internal_Shdr *i_shdrp; /* Section header table, internal form */
+ struct strtab *shstrtab;
+ int count, maxsections;
+ elf_sect_thunk est;
+
+ if (!elf_shstrtab (abfd))
+ {
+ i_ehdrp = elf_elfheader (abfd); /* build new header in tdata memory */
+ shstrtab = bfd_new_strtab (abfd);
+
+ i_ehdrp->e_ident[EI_MAG0] = ELFMAG0;
+ i_ehdrp->e_ident[EI_MAG1] = ELFMAG1;
+ i_ehdrp->e_ident[EI_MAG2] = ELFMAG2;
+ i_ehdrp->e_ident[EI_MAG3] = ELFMAG3;
+
+ i_ehdrp->e_ident[EI_CLASS] = ELFCLASS32; /* FIXME: find out from bfd */
+ i_ehdrp->e_ident[EI_DATA] =
+ abfd->xvec->byteorder_big_p ? ELFDATA2MSB : ELFDATA2LSB;
+ i_ehdrp->e_ident[EI_VERSION] = EV_CURRENT;
+
+ for (count = EI_PAD; count < EI_NIDENT; count++)
+ i_ehdrp->e_ident[count] = 0;
+
+ i_ehdrp->e_type = (abfd->flags & EXEC_P) ? ET_EXEC : ET_REL;
+ switch (bfd_get_arch (abfd))
+ {
+ case bfd_arch_unknown:
+ i_ehdrp->e_machine = EM_NONE;
+ break;
+ case bfd_arch_sparc:
+ i_ehdrp->e_machine = EM_SPARC;
+ break;
+ case bfd_arch_i386:
+ i_ehdrp->e_machine = EM_386;
+ break;
+ case bfd_arch_m68k:
+ i_ehdrp->e_machine = EM_68K;
+ break;
+ case bfd_arch_m88k:
+ i_ehdrp->e_machine = EM_88K;
+ break;
+ case bfd_arch_i860:
+ i_ehdrp->e_machine = EM_860;
+ break;
+ case bfd_arch_mips: /* MIPS Rxxxx */
+ i_ehdrp->e_machine = EM_MIPS; /* only MIPS R3000 */
+ break;
+ case bfd_arch_hppa:
+ i_ehdrp->e_machine = EM_HPPA;
+ break;
+ /* also note that EM_M32, AT&T WE32100 is unknown to bfd */
+ default:
+ i_ehdrp->e_machine = EM_NONE;
+ }
+ i_ehdrp->e_version = EV_CURRENT;
+ i_ehdrp->e_ehsize = sizeof (Elf_External_Ehdr);
+
+ /* no program header, for now. */
+ i_ehdrp->e_phoff = 0;
+ i_ehdrp->e_phentsize = 0;
+ i_ehdrp->e_phnum = 0;
+
+ /* each bfd section is section header entry */
+ i_ehdrp->e_entry = bfd_get_start_address (abfd);
+ i_ehdrp->e_shentsize = sizeof (Elf_External_Shdr);
+
+ /* figure at most each section can have a rel, strtab, symtab */
+ maxsections = 4 * bfd_count_sections (abfd) + 2;
+
+ i_ehdrp->e_shoff = i_ehdrp->e_ehsize;
+
+ /* and we'll just have to fix up the offsets later. */
+ /* outbase += i_ehdr.e_shentsize * i_ehdr.e_shnum; */
+
+ i_shdrp = (Elf_Internal_Shdr *)
+ bfd_alloc (abfd, sizeof (*i_shdrp) * maxsections);
+ if (!i_shdrp)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+ for (count = 0; count < maxsections; count++)
+ {
+ i_shdrp[count].rawdata = 0;
+ i_shdrp[count].contents = 0;
+ }
+
+
+ i_shdrp[0].sh_name = 0;
+ i_shdrp[0].sh_type = SHT_NULL;
+ i_shdrp[0].sh_flags = 0;
+ i_shdrp[0].sh_addr = 0;
+ i_shdrp[0].sh_offset = 0;
+ i_shdrp[0].sh_size = 0;
+ i_shdrp[0].sh_link = SHN_UNDEF;
+ i_shdrp[0].sh_info = 0;
+ i_shdrp[0].sh_addralign = 0;
+ i_shdrp[0].sh_entsize = 0;
+
+ i_ehdrp->e_shnum = 1;
+
+ elf_elfsections (abfd) = i_shdrp;
+ elf_shstrtab (abfd) = shstrtab;
+ }
+ est.i_ehdr = elf_elfheader (abfd);
+ est.i_shdrp = elf_elfsections (abfd);
+ est.shstrtab = elf_shstrtab (abfd);
+ est.symtab_section = 0; /* elf_fake_sections fills it in */
+
+ elf_map_symbols (abfd);
+ bfd_map_over_sections (abfd, elf_fake_sections, &est);
+ {
+ asection *secp;
+ asection *psecp = (asection *) 0;
+ int idx;
+ Elf_Internal_Shdr *shp;
+
+ for (idx = 0, secp = abfd->sections; secp; idx++, secp = secp->next)
+ {
+ if (psecp == (asection *) 0)
+ {
+ secp->filepos = est.i_ehdr->e_shoff + (est.i_ehdr->e_shnum + 1) * sizeof (Elf_External_Shdr);
+ }
+ else
+ {
+ secp->filepos = psecp->filepos + psecp->_cooked_size;
+ }
+ shp = bfd_elf_locate_sh (abfd, est.shstrtab, est.i_shdrp, secp->name);
+ if (shp)
+ shp->sh_offset = secp->filepos;
+ psecp = secp;
+ }
+ }
+ elf_onesymtab (abfd) = est.symtab_section;
+ return true;
+}
+
+static boolean
+DEFUN (elf_write_phdrs, (abfd, i_ehdrp, i_phdrp, phdr_cnt),
+ bfd * abfd AND
+ Elf_Internal_Ehdr * i_ehdrp AND
+ Elf_Internal_Phdr * i_phdrp AND
+ Elf32_Half phdr_cnt)
+{
+ /* first program header entry goes after the file header */
+ int outbase = i_ehdrp->e_ehsize;
+ int i;
+ Elf_External_Phdr x_phdr;
+
+ for (i = 0; i < phdr_cnt; i++)
+ {
+ elf_swap_phdr_out (abfd, i_phdrp + i, &x_phdr);
+ bfd_seek (abfd, outbase, SEEK_SET);
+ bfd_write ((PTR) & x_phdr, sizeof (x_phdr), 1, abfd);
+ outbase += sizeof (x_phdr);
+ }
+
+ return true;
+}
+
+static Elf_Internal_Phdr *
+DEFUN (elf_build_phdrs, (abfd, i_ehdrp, i_shdrp, phdr_cnt),
+ bfd * abfd AND
+ Elf_Internal_Ehdr * i_ehdrp AND
+ Elf_Internal_Shdr * i_shdrp AND
+ Elf32_Half * phdr_cnt)
+{
+ Elf_Internal_Phdr *phdr_buf;
+ int idx;
+ /* NOTES:
+ 1. The program header table is *not* loaded as part
+ of the memory image of the program. If this
+ changes later, the PT_PHDR entry must come first.
+ 2. there is currently no support for program header
+ entries of type PT_PHDR, PT_DYNAMIC, PT_INTERP,
+ or PT_SHLIB. */
+
+ /* A. Figure out how many program header table entries are needed
+ 1. PT_LOAD for the text segment
+ 2. PT_LOAD for the data segment
+ Then, reserve space for one more pointer. This will be NULL
+ to indicate the end of the program header table. */
+
+#ifdef PHDRS_INCLUDED
+ *phdr_cnt = 4;
+#else
+ /* XXX right now, execve() expects exactly 3 PT entries on HPPA-OSF. */
+ *phdr_cnt = 3;
+#endif
+
+ phdr_buf = (Elf_Internal_Phdr *) bfd_xmalloc (((*phdr_cnt) + 1)
+ *
+ sizeof (Elf_Internal_Phdr));
+
+ idx = 0;
+#ifdef PHDRS_INCLUDED
+ /* B. Fill in the PT_PHDR entry. */
+
+ idx++;
+#endif
+
+ /* C. Fill in the PT_LOAD entry for the text segment. */
+
+ phdr_buf[idx].p_type = PT_LOAD;
+
+ /* get virtual/physical address from .text section */
+ phdr_buf[idx].p_vaddr = bfd_get_section_by_name (abfd, ".text")->vma;
+ phdr_buf[idx].p_paddr = 0; /* XXX */
+
+ /* Ultimately, we would like the size of the .text load
+ segment to be the sum of the following sections:
+ the program header table itself
+ .interp
+ .hash
+ .dynsym
+ .dynstr
+ .rela.bss
+ .rela.plt
+ .init
+ .text
+ .fini
+ .rodata
+ But, right now, it will be the sum of the following sections:
+ .text
+ .rodata */
+
+ {
+ static char *CONST ld_sect_names[] =
+ {".text", ".rodata", NULL};
+ int i;
+ int ld_size = 0;
+
+ for (i = 0; ld_sect_names[i]; i++)
+ {
+ asection *asect = bfd_get_section_by_name (abfd,
+ ld_sect_names[i]);
+
+ if (asect)
+ ld_size += bfd_section_size (abfd, asect);
+ }
+ phdr_buf[idx].p_filesz = ld_size;
+ /* XXX: need to fix this */
+ phdr_buf[idx].p_memsz = ld_size;
+ }
+ phdr_buf[idx].p_flags = PF_R + PF_X;
+ phdr_buf[idx].p_align =
+ bfd_get_section_by_name (abfd, ".text")->alignment_power;
+
+ idx++;
+
+ /* D. Fill in the PT_LOAD entry for the data segment. */
+
+ phdr_buf[idx].p_type = PT_LOAD;
+
+ /* get virtual/physical address from .data section */
+ phdr_buf[idx].p_vaddr = bfd_get_section_by_name (abfd, ".data")->vma;
+ phdr_buf[idx].p_paddr = 0; /* XXX */
+
+ /* Ultimately, we would like the size of the data load segment
+ to be the sum of the following sections:
+ the PT_DYNAMIC program header table entry
+ .plt
+ .data
+ .data1
+ .got
+ .dynamic
+ But, right now, it will be the sum of the following sections:
+ .data */
+
+ {
+ static char *CONST ld_sect_names[] =
+ {".data", NULL};
+ int i;
+ int ld_size = 0;
+
+ for (i = 0; ld_sect_names[i]; i++)
+ {
+ asection *asect = bfd_get_section_by_name (abfd,
+ ld_sect_names[i]);
+
+ if (asect)
+ ld_size += bfd_section_size (abfd, asect);
+ }
+ phdr_buf[idx].p_filesz = ld_size;
+ /* XXX: need to fix this */
+ phdr_buf[idx].p_memsz = ld_size;
+ }
+ phdr_buf[idx].p_flags = PF_R + PF_W + PF_X;
+ phdr_buf[idx].p_align
+ = bfd_get_section_by_name (abfd, ".data")->alignment_power;
+
+ idx++;
+
+ /* E. Fill in the PT_LOAD entry for the bss segment. */
+
+ phdr_buf[idx].p_type = PT_LOAD;
+
+ /* get virtual/physical address from .data section */
+ phdr_buf[idx].p_vaddr = bfd_get_section_by_name (abfd, ".bss")->vma;
+ phdr_buf[idx].p_paddr = 0; /* XXX */
+
+ {
+ static char *CONST ld_sect_names[] =
+ {".bss", NULL};
+ int i;
+ int ld_size = 0;
+
+ for (i = 0; ld_sect_names[i]; i++)
+ {
+ asection *asect = bfd_get_section_by_name (abfd,
+ ld_sect_names[i]);
+
+ if (asect)
+ ld_size += bfd_section_size (abfd, asect);
+ }
+ phdr_buf[idx].p_filesz = 0;
+ /* XXX: need to fix this */
+ phdr_buf[idx].p_memsz = ld_size;
+ }
+ phdr_buf[idx].p_flags = PF_R + PF_W + PF_X;
+ phdr_buf[idx].p_align
+ = bfd_get_section_by_name (abfd, ".bss")->alignment_power;
+
+ idx++;
+
+ /* F. Set up the "end of program header table" sentinel. */
+
+ bzero ((char *) (phdr_buf + idx), sizeof (Elf_Internal_Phdr));
+ idx++;
+
+ BFD_ASSERT (idx - 1 == *phdr_cnt);
+
+ return phdr_buf;
+}
+
+boolean
+DEFUN (elf_write_object_contents, (abfd), bfd * abfd)
+{
+ Elf_External_Ehdr x_ehdr; /* Elf file header, external form */
+ Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
+ Elf_Internal_Phdr *i_phdrp = 0; /* Program header table, internal form */
+ Elf_External_Shdr *x_shdrp; /* Section header table, external form */
+ Elf_Internal_Shdr *i_shdrp; /* Section header table, internal form */
+ asection *nsect;
+ elf_sect_thunk est;
+
+ int outbase = 0;
+ int count;
+ int scnt;
+ struct strtab *shstrtab;
+
+ if (abfd->output_has_begun == false)
+ {
+ elf_compute_section_file_positions (abfd);
+ abfd->output_has_begun = true;
+ }
+
+ i_ehdrp = elf_elfheader (abfd);
+ i_shdrp = elf_elfsections (abfd);
+ shstrtab = elf_shstrtab (abfd);
+
+ est.i_ehdr = i_ehdrp;
+ est.i_shdrp = i_shdrp;
+ est.shstrtab = shstrtab;
+ est.symtab_section = elf_onesymtab (abfd); /* filled in by elf_fake */
+
+ bfd_map_over_sections (abfd, elf_make_sections, &est);
+
+ /* Dump out the symtabs. */
+ {
+ int symcount = bfd_get_symcount (abfd);
+ asymbol **syms = bfd_get_outsymbols (abfd);
+ struct strtab *stt = bfd_new_strtab (abfd);
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *symstrtab_hdr;
+ int symstrtab_section;
+ Elf_External_Sym *outbound_syms;
+ int idx;
+
+ symtab_hdr = &i_shdrp[est.symtab_section];
+ symtab_hdr->sh_type = SHT_SYMTAB;
+ symtab_hdr->sh_entsize = sizeof (Elf_External_Sym);
+ symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1);
+ symtab_hdr->sh_info = elf_num_locals (abfd) + 1;
+
+ /* see assert in elf_fake_sections that supports this: */
+ symstrtab_section = est.symtab_section + 1;
+ symstrtab_hdr = &i_shdrp[symstrtab_section];
+ symtab_hdr->sh_link = symstrtab_section;
+ symstrtab_hdr->sh_type = SHT_STRTAB;
+
+ outbound_syms = (Elf_External_Sym *)
+ bfd_alloc (abfd, (1 + symcount) * sizeof (Elf_External_Sym));
+ /* now generate the data (for "contents") */
+ {
+ /* Fill in zeroth symbol and swap it out. */
+ Elf_Internal_Sym sym;
+ sym.st_name = 0;
+ sym.st_value = 0;
+ sym.st_size = 0;
+ sym.st_info = 0;
+ sym.st_other = 0;
+ sym.st_shndx = SHN_UNDEF;
+ elf_swap_symbol_out (abfd, &sym, outbound_syms);
+ }
+ for (idx = 0; idx < symcount; idx++)
+ {
+ Elf_Internal_Sym sym;
+ bfd_vma value = syms[idx]->value;
+
+ sym.st_name = bfd_add_to_strtab (abfd, stt, syms[idx]->name);
+
+ value += syms[idx]->section->output_section->vma
+ + syms[idx]->section->output_offset;
+ sym.st_value = value;
+
+ sym.st_size = (Elf32_Word) (elf_symbol_from (abfd, syms[idx]))->internal_elf_sym.st_size;
+
+ if (syms[idx]->flags & BSF_WEAK)
+ sym.st_info = ELF_ST_INFO (STB_WEAK, STT_OBJECT);
+ else if (syms[idx]->flags & BSF_LOCAL)
+ {
+ if (syms[idx]->flags & BSF_FUNCTION)
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FUNC);
+ else
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_OBJECT);
+ }
+ else if (syms[idx]->flags & BSF_GLOBAL)
+ {
+ if (syms[idx]->flags & BSF_FUNCTION)
+ sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_FUNC);
+ else
+ sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_OBJECT);
+ }
+ else if (syms[idx]->flags & BSF_EXPORT)
+ {
+ if (syms[idx]->flags & BSF_FUNCTION)
+ sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_FUNC);
+ else
+ sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_OBJECT);
+ }
+ else if (syms[idx]->flags & BSF_SECTION_SYM)
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
+ else if (syms[idx]->flags & BSF_FILE)
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE);
+ else
+ sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_OBJECT);
+
+ sym.st_other = 0;
+ if (syms[idx]->section)
+ sym.st_shndx =
+ elf_section_from_bfd_section (abfd,
+ syms[idx]->section->output_section);
+ else
+ sym.st_shndx = SHN_UNDEF;
+
+ elf_swap_symbol_out (abfd, &sym,
+ outbound_syms + elf_symtab_map (abfd)[idx]);
+ }
+
+ symtab_hdr->contents = (void *) outbound_syms;
+ symstrtab_hdr->contents = (void *) stt->tab;
+ symstrtab_hdr->sh_size = stt->length;
+ symstrtab_hdr->sh_type = SHT_STRTAB;
+ }
+
+ /* put the strtab out too... */
+ {
+ Elf_Internal_Shdr *this_hdr;
+ int this_section;
+
+ this_section = i_ehdrp->e_shnum++;
+ i_ehdrp->e_shstrndx = this_section;
+ this_hdr = &i_shdrp[this_section];
+ this_hdr->sh_name = bfd_add_to_strtab (abfd, shstrtab, ".shstrtab");
+ this_hdr->sh_type = SHT_STRTAB;
+ this_hdr->sh_size = shstrtab->length;
+ this_hdr->contents = (void *) shstrtab->tab;
+ }
+
+ outbase = i_ehdrp->e_ehsize;
+
+ /* if we're building an executable, we'll need a program header table */
+ if (abfd->flags & EXEC_P)
+ {
+ i_ehdrp->e_phentsize = sizeof (Elf_External_Phdr);
+
+ /* elf_build_phdrs() returns a (NULL-terminated) array of
+ Elf_Internal_Phdrs */
+ i_phdrp = elf_build_phdrs (abfd, i_ehdrp, i_shdrp, &i_ehdrp->e_phnum);
+ i_ehdrp->e_phoff = i_ehdrp->e_ehsize;
+ i_ehdrp->e_shoff = i_ehdrp->e_phoff + (i_ehdrp->e_phentsize
+ * i_ehdrp->e_phnum);
+ }
+
+ /* swap the header before spitting it out... */
+ elf_swap_ehdr_out (abfd, i_ehdrp, &x_ehdr);
+ bfd_seek (abfd, (file_ptr) 0, SEEK_SET);
+ bfd_write ((PTR) & x_ehdr, sizeof (x_ehdr), 1, abfd);
+
+#if 0
+ outbase += i_ehdrp->e_phentsize * i_ehdrp->e_phnum;
+ outbase += i_ehdrp->e_shentsize * i_ehdrp->e_shnum;
+#endif
+ /* find the next available location in the file
+ (just beyond the sections that have already been written). */
+ outbase = 0;
+ for (count = 1; count < i_ehdrp->e_shnum; count++)
+ {
+ if (i_shdrp[count].sh_offset && outbase < i_shdrp[count].sh_offset)
+ outbase = i_shdrp[count].sh_offset + i_shdrp[count].sh_size;
+ }
+
+ /* now we fix up the offsets... */
+ for (count = 1; count < i_ehdrp->e_shnum; count++)
+ {
+ if (i_shdrp[count].sh_offset == 0)
+ i_shdrp[count].sh_offset = outbase;
+ outbase += i_shdrp[count].sh_size;
+ }
+
+ /* If we're building an executable, fixup the program header table
+ offsets.
+
+ @@ For now, assume that the entries are in a fixed order: text,
+ data, bss. FIXME */
+
+ if (abfd->flags & EXEC_P)
+ {
+ static char *CONST section_name[] =
+ {".text", ".data", ".bss"};
+
+ for (count = 0; count < 3; count++)
+ {
+ asection *asect = bfd_get_section_by_name (abfd, section_name[count]);
+ int sh_idx = elf_section_from_bfd_section (abfd, asect);
+
+ i_phdrp[count].p_offset = i_shdrp[sh_idx].sh_offset;
+ }
+
+ /* write out the program header table entries */
+ elf_write_phdrs (abfd, i_ehdrp, i_phdrp, i_ehdrp->e_phnum);
+ }
+
+ /* at this point we've concocted all the ELF sections... */
+ x_shdrp = (Elf_External_Shdr *)
+ bfd_alloc (abfd, sizeof (*x_shdrp) * (i_ehdrp->e_shnum));
+ if (!x_shdrp)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+
+ for (count = 0, scnt = 0; count < i_ehdrp->e_shnum; count++)
+ {
+ elf_swap_shdr_out (abfd, i_shdrp + count, x_shdrp + scnt);
+ scnt++;
+ }
+ bfd_write ((PTR) x_shdrp, sizeof (*x_shdrp), i_ehdrp->e_shnum, abfd);
+ /* need to dump the string table too... */
+
+ /* after writing the headers, we need to write the sections too... */
+ nsect = abfd->sections;
+ for (count = 0; count < i_ehdrp->e_shnum; count++)
+ {
+ if (i_shdrp[count].contents)
+ {
+ bfd_seek (abfd, i_shdrp[count].sh_offset, SEEK_SET);
+ bfd_write (i_shdrp[count].contents, i_shdrp[count].sh_size, 1, abfd);
+ }
+ }
+
+ return true;
+}
+
+/* Given an index of a section, retrieve a pointer to it. Note
+ that for our purposes, sections are indexed by {1, 2, ...} with
+ 0 being an illegal index. */
+
+/* In the original, each ELF section went into exactly one BFD
+ section. This doesn't really make sense, so we need a real mapping.
+ The mapping has to hide in the Elf_Internal_Shdr since asection
+ doesn't have anything like a tdata field... */
+
+static struct sec *
+DEFUN (section_from_elf_index, (abfd, index),
+ bfd * abfd AND
+ int index)
+{
+ /* @@ Is bfd_com_section really correct in all the places it could
+ be returned from this routine? */
+
+ if (index == SHN_ABS)
+ return &bfd_com_section;
+ if (index == SHN_COMMON)
+ return &bfd_com_section;
+
+ {
+ Elf_Internal_Shdr *i_shdrp = elf_elfsections (abfd);
+ Elf_Internal_Shdr *hdr = i_shdrp + index;
+
+ switch (hdr->sh_type)
+ {
+ /* ELF sections that map to BFD sections */
+ case SHT_PROGBITS:
+ case SHT_NOBITS:
+ if (!hdr->rawdata)
+ bfd_section_from_shdr (abfd, index);
+ return (struct sec *) hdr->rawdata;
+
+ default:
+ return (struct sec *) &bfd_abs_section;
+ }
+ }
+}
+
+/* given a section, search the header to find them... */
+static int
+DEFUN (elf_section_from_bfd_section, (abfd, asect),
+ bfd * abfd AND
+ struct sec *asect)
+{
+ Elf_Internal_Shdr *i_shdrp = elf_elfsections (abfd);
+ int index;
+ Elf_Internal_Shdr *hdr;
+ int maxindex = elf_elfheader (abfd)->e_shnum;
+
+ if (asect == &bfd_abs_section)
+ return SHN_ABS;
+ if (asect == &bfd_com_section)
+ return SHN_COMMON;
+
+ for (index = 0; index < maxindex; index++)
+ {
+ hdr = &i_shdrp[index];
+ switch (hdr->sh_type)
+ {
+ /* ELF sections that map to BFD sections */
+ case SHT_PROGBITS:
+ case SHT_NOBITS:
+ if (hdr->rawdata)
+ {
+ if (((struct sec *) (hdr->rawdata)) == asect)
+ return index;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ return 0;
+}
+
+/* given a symbol, return the bfd index for that symbol. */
+static int
+DEFUN (elf_symbol_from_bfd_symbol, (abfd, asym_ptr_ptr),
+ bfd * abfd AND
+ struct symbol_cache_entry **asym_ptr_ptr)
+{
+ struct symbol_cache_entry *asym_ptr = *asym_ptr_ptr;
+ CONST char *name = asym_ptr->name;
+ flagword flags = asym_ptr->flags;
+ int idx;
+ int symcount = bfd_get_symcount (abfd);
+ asymbol **syms = bfd_get_outsymbols (abfd);
+
+ /* FIXME -- there has to be a better way than linear search. */
+ for (idx = 0; idx < symcount; idx++)
+ {
+ if (syms[idx] == asym_ptr || (name == syms[idx]->name && name))
+ break;
+ }
+
+ BFD_ASSERT (idx < symcount);
+ idx = elf_symtab_map (abfd)[idx];
+
+#ifdef DEBUG
+ fprintf (stderr, "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags =",
+ (long) asym_ptr, asym_ptr->name, idx);
+
+ if (flags == BSF_NO_FLAGS)
+ fprintf (stderr, " none");
+
+ if (flags & BSF_LOCAL)
+ fprintf (stderr, " local");
+
+ if (flags & BSF_GLOBAL)
+ fprintf (stderr, " global");
+
+ if (flags & BSF_IMPORT)
+ fprintf (stderr, " import");
+
+ if (flags & BSF_EXPORT)
+ fprintf (stderr, " export");
+
+ if (flags & BSF_UNDEFINED_OBS)
+ fprintf (stderr, " undefined_obs");
+
+ if (flags & BSF_FORT_COMM_OBS)
+ fprintf (stderr, " fort_comm_obs");
+
+ if (flags & BSF_DEBUGGING)
+ fprintf (stderr, " debugging");
+
+ if (flags & BSF_KEEP)
+ fprintf (stderr, " keep");
+
+ if (flags & BSF_KEEP_G)
+ fprintf (stderr, " keep_g");
+
+ if (flags & BSF_WEAK)
+ fprintf (stderr, " weak");
+
+ if (flags & BSF_CTOR)
+ fprintf (stderr, " ctor");
+
+ if (flags & BSF_SECTION_SYM)
+ fprintf (stderr, " section_sym");
+
+ if (flags & BSF_OLD_COMMON)
+ fprintf (stderr, " old_common");
+
+ if (flags & BSF_NOT_AT_END)
+ fprintf (stderr, " not_at_end");
+
+ if (flags & BSF_CONSTRUCTOR)
+ fprintf (stderr, " constructor");
+
+ if (flags & BSF_WARNING)
+ fprintf (stderr, " warning");
+
+ if (flags & BSF_INDIRECT)
+ fprintf (stderr, " indirect");
+
+ if (flags & BSF_FILE)
+ fprintf (stderr, " file");
+
+ if (flags & BSF_FUNCTION)
+ fprintf (stderr, " function");
+
+ putc ('\n', stderr);
+ fflush (stderr);
+#endif
+
+ return idx;
+}
+
+static boolean
+DEFUN (elf_slurp_symbol_table, (abfd, symptrs),
+ bfd * abfd AND
+ asymbol ** symptrs) /* Buffer for generated bfd symbols */
+{
+ Elf_Internal_Shdr *i_shdrp = elf_elfsections (abfd);
+ Elf_Internal_Shdr *hdr = i_shdrp + elf_onesymtab (abfd);
+ int symcount; /* Number of external ELF symbols */
+ int i;
+ elf_symbol_type *sym; /* Pointer to current bfd symbol */
+ elf_symbol_type *symbase; /* Buffer for generated bfd symbols */
+ Elf_Internal_Sym i_sym;
+ Elf_External_Sym *x_symp;
+
+ /* this is only valid because there is only one symtab... */
+ /* FIXME: This is incorrect, there may also be a dynamic symbol
+ table which is a subset of the full symbol table. We either need
+ to be prepared to read both (and merge them) or ensure that we
+ only read the full symbol table. Currently we only get called to
+ read the full symbol table. -fnf */
+ if (bfd_get_outsymbols (abfd) != NULL)
+ {
+ return true;
+ }
+
+ /* Read each raw ELF symbol, converting from external ELF form to
+ internal ELF form, and then using the information to create a
+ canonical bfd symbol table entry.
+
+ Note that we allocate the initial bfd canonical symbol buffer
+ based on a one-to-one mapping of the ELF symbols to canonical
+ symbols. We actually use all the ELF symbols, so there will be no
+ space left over at the end. When we have all the symbols, we
+ build the caller's pointer vector. */
+
+ if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) == -1)
+ {
+ bfd_error = system_call_error;
+ return false;
+ }
+
+ symcount = hdr->sh_size / sizeof (Elf_External_Sym);
+ symbase = (elf_symbol_type *) bfd_zalloc (abfd, symcount * sizeof (elf_symbol_type));
+ sym = symbase;
+
+ /* Temporarily allocate room for the raw ELF symbols. */
+ x_symp = (Elf_External_Sym *) bfd_xmalloc (symcount * sizeof (Elf_External_Sym));
+
+ if (bfd_read ((PTR) x_symp, sizeof (Elf_External_Sym), symcount, abfd)
+ != symcount * sizeof (Elf_External_Sym))
+ {
+ free ((PTR) x_symp);
+ bfd_error = system_call_error;
+ return false;
+ }
+ /* Skip first symbol, which is a null dummy. */
+ for (i = 1; i < symcount; i++)
+ {
+ elf_swap_symbol_in (abfd, x_symp + i, &i_sym);
+ memcpy (&sym->internal_elf_sym, &i_sym, sizeof (Elf_Internal_Sym));
+ memcpy (&sym->native_elf_sym, x_symp + i, sizeof (Elf_External_Sym));
+ sym->symbol.the_bfd = abfd;
+
+ sym->symbol.name = elf_string_from_elf_section (abfd, hdr->sh_link,
+ i_sym.st_name);
+
+ sym->symbol.value = i_sym.st_value;
+#if 0
+ /* FIXME -- this is almost certainly bogus. It's from Pace
+ Willisson's hasty Solaris support, to pass the sizes of
+ object files or functions down into GDB via the back door, to
+ circumvent some other kludge in how Sun hacked stabs. --
+ gnu@cygnus.com */
+ /* XXX Size is now stored via a pointer in an elf_symbol_type;
+ should fix gdb then turn this off. */
+ sym->symbol.udata = (PTR) i_sym.st_size;
+ /* FIXME -- end of bogosity. */
+#endif
+ if (i_sym.st_shndx > 0 && i_sym.st_shndx < SHN_LORESERV)
+ {
+ sym->symbol.section = section_from_elf_index (abfd, i_sym.st_shndx);
+ }
+ else if (i_sym.st_shndx == SHN_ABS)
+ {
+ sym->symbol.section = &bfd_abs_section;
+ }
+ else if (i_sym.st_shndx == SHN_COMMON)
+ {
+ sym->symbol.section = &bfd_com_section;
+ }
+ else if (i_sym.st_shndx == SHN_UNDEF)
+ {
+ sym->symbol.section = &bfd_und_section;
+ }
+ else
+ sym->symbol.section = &bfd_abs_section;
+
+ sym->symbol.value -= sym->symbol.section->vma;
+
+ switch (ELF_ST_BIND (i_sym.st_info))
+ {
+ case STB_LOCAL:
+ sym->symbol.flags |= BSF_LOCAL;
+ break;
+ case STB_GLOBAL:
+ sym->symbol.flags |= (BSF_GLOBAL | BSF_EXPORT);
+ break;
+ case STB_WEAK:
+ sym->symbol.flags |= BSF_WEAK;
+ break;
+ }
+
+ switch (ELF_ST_TYPE (i_sym.st_info))
+ {
+ case STT_SECTION:
+ sym->symbol.flags |= BSF_SECTION_SYM | BSF_DEBUGGING;
+ break;
+ case STT_FILE:
+ sym->symbol.flags |= BSF_FILE | BSF_DEBUGGING;
+ break;
+ case STT_FUNC:
+ sym->symbol.flags |= BSF_FUNCTION;
+ break;
+ }
+ /* Is this a definition of $global$? If so, keep it because it will be
+ needd if any relocations are performed. */
+ if (!strcmp (sym->symbol.name, "$global$")
+ && sym->symbol.section != &bfd_und_section)
+ {
+ /* @@ Why is this referring to backend data and not a field of
+ abfd? FIXME */
+ struct elf_backend_data *be_data = (struct elf_backend_data *) abfd->xvec->backend_data;
+
+ be_data->global_sym = sym;
+ }
+ sym++;
+ }
+
+ /* We rely on the zalloc to clear out the final symbol entry. */
+
+ obj_raw_syms (abfd) = x_symp;
+
+ bfd_get_symcount (abfd) = symcount = sym - symbase;
+
+ /* Fill in the user's symbol pointer vector if needed. */
+ if (symptrs)
+ {
+ sym = symbase;
+ while (symcount-- > 0)
+ {
+ *symptrs++ = &sym->symbol;
+ sym++;
+ }
+ *symptrs = 0; /* Final null pointer */
+ }
+
+ return true;
+}
+
+/* Return the number of bytes required to hold the symtab vector.
+
+ Note that we base it on the count plus 1, since we will null terminate
+ the vector allocated based on this size. However, the ELF symbol table
+ always has a dummy entry as symbol #0, so it ends up even. */
+
+unsigned int
+DEFUN (elf_get_symtab_upper_bound, (abfd), bfd * abfd)
+{
+ unsigned int symcount;
+ unsigned int symtab_size = 0;
+ Elf_Internal_Shdr *i_shdrp;
+ Elf_Internal_Shdr *hdr;
+
+ i_shdrp = elf_elfsections (abfd);
+ if (i_shdrp != NULL)
+ {
+ hdr = i_shdrp + elf_onesymtab (abfd);
+ symcount = hdr->sh_size / sizeof (Elf_External_Sym);
+ symtab_size = (symcount - 1 + 1) * (sizeof (asymbol));
+ }
+ return symtab_size;
+}
+
+/*
+ This function return the number of bytes required to store the
+ relocation information associated with section <<sect>>
+ attached to bfd <<abfd>>
+
+*/
+unsigned int
+elf_get_reloc_upper_bound (abfd, asect)
+ bfd *abfd;
+ sec_ptr asect;
+{
+ if (asect->flags & SEC_RELOC)
+ {
+ /* either rel or rela */
+ return asect->_raw_size;
+ }
+ else
+ return 0;
+}
+
+static boolean
+DEFUN (elf_slurp_reloca_table, (abfd, asect, symbols),
+ bfd * abfd AND
+ sec_ptr asect AND
+ asymbol ** symbols)
+{
+ Elf_External_Rela *native_relocs;
+ arelent *reloc_cache;
+ arelent *cache_ptr;
+
+ unsigned int idx;
+
+ if (asect->relocation)
+ return true;
+ if (asect->reloc_count == 0)
+ return true;
+ if (asect->flags & SEC_CONSTRUCTOR)
+ return true;
+
+ bfd_seek (abfd, asect->rel_filepos, SEEK_SET);
+ native_relocs = (Elf_External_Rela *)
+ bfd_alloc (abfd, asect->reloc_count * sizeof (Elf_External_Rela));
+ bfd_read ((PTR) native_relocs,
+ sizeof (Elf_External_Rela), asect->reloc_count, abfd);
+
+ reloc_cache = (arelent *)
+ bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent)));
+
+ if (!reloc_cache)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+
+ for (idx = 0; idx < asect->reloc_count; idx++)
+ {
+#ifdef RELOC_PROCESSING
+ Elf_Internal_Rela dst;
+ Elf_External_Rela *src;
+
+ cache_ptr = reloc_cache + idx;
+ src = native_relocs + idx;
+ elf_swap_reloca_in (abfd, src, &dst);
+
+ RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
+#else
+ Elf_Internal_Rela dst;
+ Elf_External_Rela *src;
+
+ cache_ptr = reloc_cache + idx;
+ src = native_relocs + idx;
+
+ elf_swap_reloca_in (abfd, src, &dst);
+
+ if (asect->flags & SEC_RELOC)
+ {
+ /* relocatable, so the offset is off of the section */
+ cache_ptr->address = dst.r_offset + asect->vma;
+ }
+ else
+ {
+ /* non-relocatable, so the offset a virtual address */
+ cache_ptr->address = dst.r_offset;
+ }
+ /* ELF_R_SYM(dst.r_info) is the symbol table offset; subtract 1
+ because the first entry is NULL. */
+ cache_ptr->sym_ptr_ptr = symbols + ELF32_R_SYM (dst.r_info) - 1;
+ cache_ptr->addend = dst.r_addend;
+
+ /* Fill in the cache_ptr->howto field from dst.r_type */
+ {
+ struct elf_backend_data *ebd = get_elf_backend_data (abfd);
+ (*ebd->elf_info_to_howto) (abfd, cache_ptr, &dst);
+ }
+#endif
+ }
+
+ asect->relocation = reloc_cache;
+ return true;
+}
+
+#ifdef DEBUG
+static void
+elf_debug_section (str, num, hdr)
+ char *str;
+ int num;
+ Elf_Internal_Shdr *hdr;
+{
+ fprintf (stderr, "\nSection#%d '%s' 0x%.8lx\n", num, str, (long) hdr);
+ fprintf (stderr, "sh_name = %ld\n", (long) hdr->sh_name);
+ fprintf (stderr, "sh_type = %ld\n", (long) hdr->sh_type);
+ fprintf (stderr, "sh_flags = %ld\n", (long) hdr->sh_flags);
+ fprintf (stderr, "sh_addr = %ld\n", (long) hdr->sh_addr);
+ fprintf (stderr, "sh_offset = %ld\n", (long) hdr->sh_offset);
+ fprintf (stderr, "sh_size = %ld\n", (long) hdr->sh_size);
+ fprintf (stderr, "sh_link = %ld\n", (long) hdr->sh_link);
+ fprintf (stderr, "sh_info = %ld\n", (long) hdr->sh_info);
+ fprintf (stderr, "sh_addralign = %ld\n", (long) hdr->sh_addralign);
+ fprintf (stderr, "sh_entsize = %ld\n", (long) hdr->sh_entsize);
+ fprintf (stderr, "rawdata = 0x%.8lx\n", (long) hdr->rawdata);
+ fprintf (stderr, "contents = 0x%.8lx\n", (long) hdr->contents);
+ fprintf (stderr, "size = %ld\n", (long) hdr->size);
+ fflush (stderr);
+}
+
+#endif
+
+static boolean
+DEFUN (elf_slurp_reloc_table, (abfd, asect, symbols),
+ bfd * abfd AND
+ sec_ptr asect AND
+ asymbol ** symbols)
+{
+ Elf_External_Rel *native_relocs;
+ arelent *reloc_cache;
+ arelent *cache_ptr;
+ Elf_Internal_Shdr *i_shdrp;
+ Elf_Internal_Shdr *data_hdr;
+ ElfNAME (Off) data_off;
+ ElfNAME (Word) data_max;
+ char buf[4]; /* FIXME -- might be elf64 */
+
+ unsigned int idx;
+
+ if (asect->relocation)
+ return true;
+ if (asect->reloc_count == 0)
+ return true;
+ if (asect->flags & SEC_CONSTRUCTOR)
+ return true;
+
+ bfd_seek (abfd, asect->rel_filepos, SEEK_SET);
+ native_relocs = (Elf_External_Rel *)
+ bfd_alloc (abfd, asect->reloc_count * sizeof (Elf_External_Rel));
+ bfd_read ((PTR) native_relocs,
+ sizeof (Elf_External_Rel), asect->reloc_count, abfd);
+
+ reloc_cache = (arelent *)
+ bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent)));
+
+ if (!reloc_cache)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+
+ /* Get the offset of the start of the segment we are relocating to read in
+ the implicit addend. */
+ i_shdrp = elf_elfsections (abfd);
+ data_hdr = i_shdrp + elf_section_from_bfd_section (abfd, asect);
+ data_off = data_hdr->sh_offset;
+ data_max = data_hdr->sh_size - sizeof (buf) + 1;
+
+#ifdef DEBUG
+ elf_debug_section ("data section", data_hdr - i_shdrp, data_hdr);
+#endif
+
+ for (idx = 0; idx < asect->reloc_count; idx++)
+ {
+#ifdef RELOC_PROCESSING
+ Elf_Internal_Rel dst;
+ Elf_External_Rel *src;
+
+ cache_ptr = reloc_cache + idx;
+ src = native_relocs + idx;
+ elf_swap_reloc_in (abfd, src, &dst);
+
+ RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
+#else
+ Elf_Internal_Rel dst;
+ Elf_External_Rel *src;
+
+ cache_ptr = reloc_cache + idx;
+ src = native_relocs + idx;
+
+ elf_swap_reloc_in (abfd, src, &dst);
+
+ if (asect->flags & SEC_RELOC)
+ {
+ /* relocatable, so the offset is off of the section */
+ cache_ptr->address = dst.r_offset + asect->vma;
+ }
+ else
+ {
+ /* non-relocatable, so the offset a virtual address */
+ cache_ptr->address = dst.r_offset;
+ }
+ /* ELF_R_SYM(dst.r_info) is the symbol table offset...
+ -1 is to skip the dummy symbol table entry */
+ cache_ptr->sym_ptr_ptr = symbols + ELF32_R_SYM (dst.r_info) - 1;
+ BFD_ASSERT (dst.r_offset <= data_max);
+ if (bfd_seek (abfd, data_off + dst.r_offset, SEEK_SET) != 0
+ || bfd_read ((PTR) buf, sizeof (buf), 1, abfd) != sizeof (buf))
+ {
+ bfd_error = system_call_error;
+ return false;
+ }
+
+ cache_ptr->addend = (*abfd->xvec->bfd_getx_signed_32) ((bfd_byte *) buf);
+
+ /* Fill in the cache_ptr->howto field from dst.r_type */
+ {
+ struct elf_backend_data *ebd = get_elf_backend_data (abfd);
+ (*ebd->elf_info_to_howto_rel) (abfd, cache_ptr, &dst);
+ }
+#endif
+ }
+
+ asect->relocation = reloc_cache;
+ return true;
+}
+
+unsigned int
+elf_canonicalize_reloc (abfd, section, relptr, symbols)
+ bfd *abfd;
+ sec_ptr section;
+ arelent **relptr;
+ asymbol **symbols;
+{
+ arelent *tblptr = section->relocation;
+ unsigned int count = 0;
+ int use_rela_p = get_elf_backend_data (abfd)->use_rela_p;
+
+ /* snarfed from coffcode.h */
+ if (use_rela_p)
+ elf_slurp_reloca_table (abfd, section, symbols);
+ else
+ elf_slurp_reloc_table (abfd, section, symbols);
+
+ tblptr = section->relocation;
+ if (!tblptr)
+ return 0;
+
+ for (; count++ < section->reloc_count;)
+ *relptr++ = tblptr++;
+
+ *relptr = 0;
+ return section->reloc_count;
+}
+
+unsigned int
+DEFUN (elf_get_symtab, (abfd, alocation),
+ bfd * abfd AND
+ asymbol ** alocation)
+{
+
+ if (!elf_slurp_symbol_table (abfd, alocation))
+ return 0;
+ else
+ return bfd_get_symcount (abfd);
+}
+
+asymbol *
+DEFUN (elf_make_empty_symbol, (abfd),
+ bfd * abfd)
+{
+ elf_symbol_type *newsym;
+
+ newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (elf_symbol_type));
+ if (!newsym)
+ {
+ bfd_error = no_memory;
+ return NULL;
+ }
+ else
+ {
+ newsym->symbol.the_bfd = abfd;
+ return &newsym->symbol;
+ }
+}
+
+void
+DEFUN (elf_get_symbol_info, (ignore_abfd, symbol, ret),
+ bfd * ignore_abfd AND
+ asymbol * symbol AND
+ symbol_info * ret)
+{
+ bfd_symbol_info (symbol, ret);
+}
+
+void
+DEFUN (elf_print_symbol, (ignore_abfd, filep, symbol, how),
+ bfd * ignore_abfd AND
+ PTR filep AND
+ asymbol * symbol AND
+ bfd_print_symbol_type how)
+{
+ FILE *file = (FILE *) filep;
+ switch (how)
+ {
+ case bfd_print_symbol_name:
+ fprintf (file, "%s", symbol->name);
+ break;
+ case bfd_print_symbol_more:
+ fprintf (file, "elf %lx %lx",
+ symbol->value,
+ (long) symbol->flags);
+ break;
+ case bfd_print_symbol_all:
+ {
+ CONST char *section_name;
+ section_name = symbol->section ? symbol->section->name : "(*none*)";
+ bfd_print_symbol_vandf ((PTR) file, symbol);
+ fprintf (file, " %s\t%s",
+ section_name,
+ symbol->name);
+ }
+ break;
+ }
+
+}
+
+alent *
+DEFUN (elf_get_lineno, (ignore_abfd, symbol),
+ bfd * ignore_abfd AND
+ asymbol * symbol)
+{
+ fprintf (stderr, "elf_get_lineno unimplemented\n");
+ fflush (stderr);
+ BFD_FAIL ();
+ return NULL;
+}
+
+boolean
+DEFUN (elf_set_arch_mach, (abfd, arch, machine),
+ bfd * abfd AND
+ enum bfd_architecture arch AND
+ unsigned long machine)
+{
+ /* Allow any architecture to be supported by the elf backend */
+ switch (arch)
+ {
+ case bfd_arch_unknown: /* EM_NONE */
+ case bfd_arch_sparc: /* EM_SPARC */
+ case bfd_arch_i386: /* EM_386 */
+ case bfd_arch_m68k: /* EM_68K */
+ case bfd_arch_m88k: /* EM_88K */
+ case bfd_arch_i860: /* EM_860 */
+ case bfd_arch_mips: /* EM_MIPS (MIPS R3000) */
+ case bfd_arch_hppa: /* EM_HPPA (HP PA_RISC) */
+ return bfd_default_set_arch_mach (abfd, arch, machine);
+ default:
+ return false;
+ }
+}
+
+boolean
+DEFUN (elf_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)
+{
+ fprintf (stderr, "elf_find_nearest_line unimplemented\n");
+ fflush (stderr);
+ BFD_FAIL ();
+ return false;
+}
+
+int
+DEFUN (elf_sizeof_headers, (abfd, reloc),
+ bfd * abfd AND
+ boolean reloc)
+{
+ fprintf (stderr, "elf_sizeof_headers unimplemented\n");
+ fflush (stderr);
+ BFD_FAIL ();
+ return 0;
+}
+
+boolean
+DEFUN (elf_set_section_contents, (abfd, section, location, offset, count),
+ bfd * abfd AND
+ sec_ptr section AND
+ PTR location AND
+ file_ptr offset AND
+ bfd_size_type count)
+{
+ int dest_sect;
+
+ if (abfd->output_has_begun == false) /* set by bfd.c handler? */
+ {
+ /* do setup calculations (FIXME) */
+ elf_compute_section_file_positions (abfd);
+ abfd->output_has_begun = true;
+ }
+
+ dest_sect = elf_section_from_bfd_section (abfd, section);
+ if (!dest_sect)
+ return false;
+
+ if (bfd_seek (abfd, elf_elfsections (abfd)[dest_sect].sh_offset + offset, SEEK_SET) == -1)
+ return false;
+ if (bfd_write (location, 1, count, abfd) != count)
+ return false;
+ return true;
+}
+
+void
+DEFUN (elf_no_info_to_howto, (abfd, cache_ptr, dst),
+ bfd * abfd AND
+ arelent * cache_ptr AND
+ Elf_Internal_Rela * dst)
+{
+ fprintf (stderr, "elf RELA relocation support for target machine unimplemented\n");
+ fflush (stderr);
+ BFD_FAIL ();
+}
+
+void
+DEFUN (elf_no_info_to_howto_rel, (abfd, cache_ptr, dst),
+ bfd * abfd AND
+ arelent * cache_ptr AND
+ Elf_Internal_Rel * dst)
+{
+ fprintf (stderr, "elf REL relocation support for target machine unimplemented\n");
+ fflush (stderr);
+ BFD_FAIL ();
+}
+
+boolean
+DEFUN (elf_get_sect_thunk, (abfd, est),
+ bfd * abfd AND
+ elf_sect_thunk * est)
+{
+ if (est == (elf_sect_thunk *) NULL)
+ return false;
+
+ est->i_ehdr = elf_elfheader (abfd);
+ est->i_shdrp = elf_elfsections (abfd);
+ est->shstrtab = elf_shstrtab (abfd);
+ est->symtab_section = elf_onesymtab (abfd); /* filled in by elf_fake */
+
+ return true;
+}
projects / binutils-gdb.git / commitdiff