/* ELF executable support for BFD.
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
- 2013
- Free Software Foundation, Inc.
+ Copyright 1993-2014 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
return FALSE;
elf_object_id (abfd) = object_id;
- elf_program_header_size (abfd) = (bfd_size_type) -1;
+ if (abfd->direction != read_direction)
+ {
+ struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o);
+ if (o == NULL)
+ return FALSE;
+ elf_tdata (abfd)->o = o;
+ elf_program_header_size (abfd) = (bfd_size_type) -1;
+ }
return TRUE;
}
bfd_elf_mkcorefile (bfd *abfd)
{
/* I think this can be done just like an object file. */
- return abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd);
+ if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd))
+ return FALSE;
+ elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core));
+ return elf_tdata (abfd)->core != NULL;
}
static char *
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
- BFD_ASSERT (!elf_flags_init (obfd)
- || (elf_elfheader (obfd)->e_flags
- == elf_elfheader (ibfd)->e_flags));
+ if (!elf_flags_init (obfd))
+ {
+ elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
+ elf_flags_init (obfd) = TRUE;
+ }
elf_gp (obfd) = elf_gp (ibfd);
- elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
- elf_flags_init (obfd) = TRUE;
+
+ /* Also copy the EI_OSABI field. */
+ elf_elfheader (obfd)->e_ident[EI_OSABI] =
+ elf_elfheader (ibfd)->e_ident[EI_OSABI];
/* Copy object attributes. */
_bfd_elf_copy_obj_attributes (ibfd, obfd);
USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL
relocations. */
-bfd_boolean
+static bfd_boolean
_bfd_elf_init_reloc_shdr (bfd *abfd,
struct bfd_elf_section_reloc_data *reldata,
asection *asect,
{
d->rel.hdr->sh_link = elf_onesymtab (abfd);
d->rel.hdr->sh_info = d->this_idx;
+ d->rel.hdr->sh_flags |= SHF_INFO_LINK;
}
if (d->rela.idx != 0)
{
d->rela.hdr->sh_link = elf_onesymtab (abfd);
d->rela.hdr->sh_info = d->this_idx;
+ d->rela.hdr->sh_flags |= SHF_INFO_LINK;
}
/* We need to set up sh_link for SHF_LINK_ORDER. */
name += 5;
s = bfd_get_section_by_name (abfd, name);
if (s != NULL)
- d->this_hdr.sh_info = elf_section_data (s)->this_idx;
+ {
+ d->this_hdr.sh_info = elf_section_data (s)->this_idx;
+ d->this_hdr.sh_flags |= SHF_INFO_LINK;
+ }
break;
case SHT_STRTAB:
return FALSE;
/* Post process the headers if necessary. */
- if (bed->elf_backend_post_process_headers)
- (*bed->elf_backend_post_process_headers) (abfd, link_info);
+ (*bed->elf_backend_post_process_headers) (abfd, link_info);
fsargs.failed = FALSE;
fsargs.link_info = link_info;
== (SEC_LOAD | SEC_HAS_CONTENTS))
break;
- if (i == (unsigned) -1)
- continue;
-
- if (m->sections[i]->vma + m->sections[i]->size
- >= info->relro_end)
+ if (i != (unsigned) -1)
break;
}
}
static file_ptr
vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize)
{
+ /* PR binutils/16199: Handle an alignment of zero. */
+ if (maxpagesize == 0)
+ maxpagesize = 1;
return ((vma - off) % maxpagesize);
}
p->p_flags |= PF_W;
}
}
+
off -= off_adjust;
/* Check that all sections are in a PT_LOAD segment.
{
if (lp->p_type == PT_LOAD
&& lp->p_vaddr < link_info->relro_end
- && lp->p_vaddr + lp->p_filesz >= link_info->relro_end
&& lm->count != 0
&& lm->sections[0]->vma >= link_info->relro_start)
break;
}
- /* PR ld/14207. If the RELRO segment doesn't fit in the
- LOAD segment, it should be removed. */
BFD_ASSERT (lm != NULL);
}
else
return FALSE;
}
+ /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */
+ if (link_info != NULL
+ && link_info->executable
+ && link_info->shared)
+ {
+ unsigned int num_segments = elf_elfheader (abfd)->e_phnum;
+ Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr;
+ Elf_Internal_Phdr *end_segment = &segment[num_segments];
+
+ /* Find the lowest p_vaddr in PT_LOAD segments. */
+ bfd_vma p_vaddr = (bfd_vma) -1;
+ for (; segment < end_segment; segment++)
+ if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr)
+ p_vaddr = segment->p_vaddr;
+
+ /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD
+ segments is non-zero. */
+ if (p_vaddr)
+ i_ehdrp->e_type = ET_EXEC;
+ }
+
/* Write out the program headers. */
alloc = elf_program_header_size (abfd) / bed->s->sizeof_phdr;
if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0
return FALSE;
/* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */
- if (t->build_id != NULL
- && t->build_id->u.o.zero == 0)
- return (*t->build_id->u.o.after_write_object_contents) (abfd);
+ if (t->o->build_id.after_write_object_contents != NULL)
+ return (*t->o->build_id.after_write_object_contents) (abfd);
return TRUE;
}
if (ELF_SECTION_IN_SEGMENT (this_hdr, segment))
{
map->sections[isec++] = section->output_section;
- if (section->lma < lowest_section->lma)
- lowest_section = section;
if ((section->flags & SEC_ALLOC) != 0)
{
bfd_vma seg_off;
+ if (section->lma < lowest_section->lma)
+ lowest_section = section;
+
/* Section lmas are set up from PT_LOAD header
p_paddr in _bfd_elf_make_section_from_shdr.
If this header has a p_paddr that disagrees
struct elf_obj_tdata *tdata = elf_tdata (abfd);
if (bfd_get_format (abfd) == bfd_object && tdata != NULL)
{
- if (elf_shstrtab (abfd) != NULL)
+ if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL)
_bfd_elf_strtab_free (elf_shstrtab (abfd));
_bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info);
}
{
int pid;
- pid = elf_tdata (abfd)->core_lwpid;
+ pid = elf_tdata (abfd)->core->lwpid;
if (pid == 0)
- pid = elf_tdata (abfd)->core_pid;
+ pid = elf_tdata (abfd)->core->pid;
return pid;
}
/* Do not overwrite the core signal if it
has already been set by another thread. */
- if (elf_tdata (abfd)->core_signal == 0)
- elf_tdata (abfd)->core_signal = prstat.pr_cursig;
- if (elf_tdata (abfd)->core_pid == 0)
- elf_tdata (abfd)->core_pid = prstat.pr_pid;
+ if (elf_tdata (abfd)->core->signal == 0)
+ elf_tdata (abfd)->core->signal = prstat.pr_cursig;
+ if (elf_tdata (abfd)->core->pid == 0)
+ elf_tdata (abfd)->core->pid = prstat.pr_pid;
/* pr_who exists on:
solaris 2.5+
linux 2.[01]
*/
#if defined (HAVE_PRSTATUS_T_PR_WHO)
- elf_tdata (abfd)->core_lwpid = prstat.pr_who;
+ elf_tdata (abfd)->core->lwpid = prstat.pr_who;
#else
- elf_tdata (abfd)->core_lwpid = prstat.pr_pid;
+ elf_tdata (abfd)->core->lwpid = prstat.pr_pid;
#endif
}
#if defined (HAVE_PRSTATUS32_T)
/* Do not overwrite the core signal if it
has already been set by another thread. */
- if (elf_tdata (abfd)->core_signal == 0)
- elf_tdata (abfd)->core_signal = prstat.pr_cursig;
- if (elf_tdata (abfd)->core_pid == 0)
- elf_tdata (abfd)->core_pid = prstat.pr_pid;
+ if (elf_tdata (abfd)->core->signal == 0)
+ elf_tdata (abfd)->core->signal = prstat.pr_cursig;
+ if (elf_tdata (abfd)->core->pid == 0)
+ elf_tdata (abfd)->core->pid = prstat.pr_pid;
/* pr_who exists on:
solaris 2.5+
linux 2.[01]
*/
#if defined (HAVE_PRSTATUS32_T_PR_WHO)
- elf_tdata (abfd)->core_lwpid = prstat.pr_who;
+ elf_tdata (abfd)->core->lwpid = prstat.pr_who;
#else
- elf_tdata (abfd)->core_lwpid = prstat.pr_pid;
+ elf_tdata (abfd)->core->lwpid = prstat.pr_pid;
#endif
}
#endif /* HAVE_PRSTATUS32_T */
return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note);
}
+static bfd_boolean
+elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note)
+{
+ return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note);
+}
+
static bfd_boolean
elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note)
{
memcpy (&psinfo, note->descdata, sizeof (psinfo));
#if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID)
- elf_tdata (abfd)->core_pid = psinfo.pr_pid;
+ elf_tdata (abfd)->core->pid = psinfo.pr_pid;
#endif
- elf_tdata (abfd)->core_program
+ elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, psinfo.pr_fname,
sizeof (psinfo.pr_fname));
- elf_tdata (abfd)->core_command
+ elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, psinfo.pr_psargs,
sizeof (psinfo.pr_psargs));
}
memcpy (&psinfo, note->descdata, sizeof (psinfo));
#if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID)
- elf_tdata (abfd)->core_pid = psinfo.pr_pid;
+ elf_tdata (abfd)->core->pid = psinfo.pr_pid;
#endif
- elf_tdata (abfd)->core_program
+ elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, psinfo.pr_fname,
sizeof (psinfo.pr_fname));
- elf_tdata (abfd)->core_command
+ elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, psinfo.pr_psargs,
sizeof (psinfo.pr_psargs));
}
implementations, so strip it off if it exists. */
{
- char *command = elf_tdata (abfd)->core_command;
+ char *command = elf_tdata (abfd)->core->command;
int n = strlen (command);
if (0 < n && command[n - 1] == ' ')
memcpy (&pstat, note->descdata, sizeof (pstat));
- elf_tdata (abfd)->core_pid = pstat.pr_pid;
+ elf_tdata (abfd)->core->pid = pstat.pr_pid;
}
#if defined (HAVE_PSTATUS32_T)
else if (note->descsz == sizeof (pstatus32_t))
memcpy (&pstat, note->descdata, sizeof (pstat));
- elf_tdata (abfd)->core_pid = pstat.pr_pid;
+ elf_tdata (abfd)->core->pid = pstat.pr_pid;
}
#endif
/* Could grab some more details from the "representative"
memcpy (&lwpstat, note->descdata, sizeof (lwpstat));
- elf_tdata (abfd)->core_lwpid = lwpstat.pr_lwpid;
+ elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid;
/* Do not overwrite the core signal if it has already been set by
another thread. */
- if (elf_tdata (abfd)->core_signal == 0)
- elf_tdata (abfd)->core_signal = lwpstat.pr_cursig;
+ if (elf_tdata (abfd)->core->signal == 0)
+ elf_tdata (abfd)->core->signal = lwpstat.pr_cursig;
/* Make a ".reg/999" section. */
switch (type)
{
case 1 /* NOTE_INFO_PROCESS */:
- /* FIXME: need to add ->core_command. */
+ /* FIXME: need to add ->core->command. */
/* process_info.pid */
- elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 8);
+ elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8);
/* process_info.signal */
- elf_tdata (abfd)->core_signal = bfd_get_32 (abfd, note->descdata + 12);
+ elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12);
break;
case 2 /* NOTE_INFO_THREAD */:
else
return TRUE;
+ case NT_S390_TDB:
+ if (note->namesz == 6
+ && strcmp (note->namedata, "LINUX") == 0)
+ return elfcore_grok_s390_tdb (abfd, note);
+ else
+ return TRUE;
+
case NT_ARM_VFP:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return FALSE;
t = elf_tdata (abfd);
- t->build_id = bfd_alloc (abfd, sizeof (t->build_id->u.i) - 1 + note->descsz);
+ t->build_id = bfd_alloc (abfd, sizeof (*t->build_id) - 1 + note->descsz);
if (t->build_id == NULL)
return FALSE;
- t->build_id->u.i.size = note->descsz;
- memcpy (t->build_id->u.i.data, note->descdata, note->descsz);
+ t->build_id->size = note->descsz;
+ memcpy (t->build_id->data, note->descdata, note->descsz);
return TRUE;
}
elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note)
{
/* Signal number at offset 0x08. */
- elf_tdata (abfd)->core_signal
+ elf_tdata (abfd)->core->signal
= bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08);
/* Process ID at offset 0x50. */
- elf_tdata (abfd)->core_pid
+ elf_tdata (abfd)->core->pid
= bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50);
/* Command name at 0x7c (max 32 bytes, including nul). */
- elf_tdata (abfd)->core_command
+ elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31);
return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo",
int lwp;
if (elfcore_netbsd_get_lwpid (note, &lwp))
- elf_tdata (abfd)->core_lwpid = lwp;
+ elf_tdata (abfd)->core->lwpid = lwp;
if (note->type == NT_NETBSDCORE_PROCINFO)
{
elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note)
{
/* Signal number at offset 0x08. */
- elf_tdata (abfd)->core_signal
+ elf_tdata (abfd)->core->signal
= bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08);
/* Process ID at offset 0x20. */
- elf_tdata (abfd)->core_pid
+ elf_tdata (abfd)->core->pid
= bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20);
/* Command name at 0x48 (max 32 bytes, including nul). */
- elf_tdata (abfd)->core_command
+ elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31);
return TRUE;
unsigned flags;
/* nto_procfs_status 'pid' field is at offset 0. */
- elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, (bfd_byte *) ddata);
+ elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata);
/* nto_procfs_status 'tid' field is at offset 4. Pass it back. */
*tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4);
/* nto_procfs_status 'what' field is at offset 14. */
if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0)
{
- elf_tdata (abfd)->core_signal = sig;
- elf_tdata (abfd)->core_lwpid = *tid;
+ elf_tdata (abfd)->core->signal = sig;
+ elf_tdata (abfd)->core->lwpid = *tid;
}
/* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores
do not come from signals so we make sure we set the current
thread just in case. */
if (flags & 0x00000080)
- elf_tdata (abfd)->core_lwpid = *tid;
+ elf_tdata (abfd)->core->lwpid = *tid;
/* Make a ".qnx_core_status/%d" section. */
sprintf (buf, ".qnx_core_status/%ld", *tid);
sect->alignment_power = 2;
/* This is the current thread. */
- if (elf_tdata (abfd)->core_lwpid == tid)
+ if (elf_tdata (abfd)->core->lwpid == tid)
return elfcore_maybe_make_sect (abfd, base, sect);
return TRUE;
s390_system_call, size);
}
+char *
+elfcore_write_s390_tdb (bfd *abfd,
+ char *buf,
+ int *bufsiz,
+ const void *s390_tdb,
+ int size)
+{
+ char *note_name = "LINUX";
+ return elfcore_write_note (abfd, buf, bufsiz,
+ note_name, NT_S390_TDB, s390_tdb, size);
+}
+
char *
elfcore_write_arm_vfp (bfd *abfd,
char *buf,
return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-s390-system-call") == 0)
return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size);
+ if (strcmp (section, ".reg-s390-tdb") == 0)
+ return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-arm-vfp") == 0)
return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-aarch-tls") == 0)
}
enum elf_reloc_type_class
-_bfd_elf_reloc_type_class (const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED)
+_bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const asection *rel_sec ATTRIBUTE_UNUSED,
+ const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED)
{
return reloc_class_normal;
}
SEC_IS_COMMON, NULL, "LARGE_COMMON", 0);
void
-_bfd_elf_set_osabi (bfd * abfd,
- struct bfd_link_info * link_info ATTRIBUTE_UNUSED)
+_bfd_elf_post_process_headers (bfd * abfd,
+ struct bfd_link_info * link_info ATTRIBUTE_UNUSED)
{
Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */
projects / deliverable / binutils-gdb.git / blobdiff