* elf.c (_bfd_elf_print_private_bfd_data): Dump contents of

dynamic section, if there is one.
	* elf-bfd.h (struct elf_size_info): Add swap_dyn_in field.
	(bfd_elf32_swap_dyn_in): Change type of second parameter to PTR.
	(bfd_elf64_swap_dyn_in): Likewise.
	* elfcode.h (elf_swap_dyn_in): Change type of second parameter to
	PTR.
	(NAME(_bfd_elf,size_info)): Initialize swap_dyn_in field.
This commit is contained in:
Ian Lance Taylor 1996-01-12 19:13:49 +00:00
parent 3c38b3df0c
commit 02fcd12620
4 changed files with 156 additions and 41 deletions

View File

@ -1,5 +1,14 @@
Fri Jan 12 13:59:16 1996 Ian Lance Taylor <ian@cygnus.com>
* elf.c (_bfd_elf_print_private_bfd_data): Dump contents of
dynamic section, if there is one.
* elf-bfd.h (struct elf_size_info): Add swap_dyn_in field.
(bfd_elf32_swap_dyn_in): Change type of second parameter to PTR.
(bfd_elf64_swap_dyn_in): Likewise.
* elfcode.h (elf_swap_dyn_in): Change type of second parameter to
PTR.
(NAME(_bfd_elf,size_info)): Initialize swap_dyn_in field.
* elf32-i386.c (elf_i386_size_dynamic_sections): Don't create a
DT_TEXTREL entry because of .rel.plt. From Martin Pirker
<pirker@eiunix.tuwien.ac.at>.

View File

@ -182,6 +182,7 @@ struct elf_size_info {
void (*swap_symbol_out) PARAMS ((bfd *, Elf_Internal_Sym *, PTR));
boolean (*slurp_reloc_table) PARAMS ((bfd *, asection *, asymbol **));
long (*slurp_symbol_table) PARAMS ((bfd *, asymbol **, boolean));
void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
};
#define elf_symbol_from(ABFD,S) \
@ -687,7 +688,7 @@ extern void bfd_elf32_swap_phdr_in
extern void bfd_elf32_swap_phdr_out
PARAMS ((bfd *, Elf_Internal_Phdr *, Elf32_External_Phdr *));
extern void bfd_elf32_swap_dyn_in
PARAMS ((bfd *, const Elf32_External_Dyn *, Elf_Internal_Dyn *));
PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
extern void bfd_elf32_swap_dyn_out
PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf32_External_Dyn *));
extern boolean bfd_elf32_add_dynamic_entry
@ -723,7 +724,7 @@ extern void bfd_elf64_swap_phdr_in
extern void bfd_elf64_swap_phdr_out
PARAMS ((bfd *, Elf_Internal_Phdr *, Elf64_External_Phdr *));
extern void bfd_elf64_swap_dyn_in
PARAMS ((bfd *, const Elf64_External_Dyn *, Elf_Internal_Dyn *));
PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
extern void bfd_elf64_swap_dyn_out
PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf64_External_Dyn *));
extern boolean bfd_elf64_add_dynamic_entry

172
bfd/elf.c
View File

@ -335,50 +335,152 @@ _bfd_elf_print_private_bfd_data (abfd, farg)
{
FILE *f = (FILE *) farg;
Elf_Internal_Phdr *p;
unsigned int i, c;
asection *s;
bfd_byte *dynbuf = NULL;
p = elf_tdata (abfd)->phdr;
if (p == NULL)
return true;
c = elf_elfheader (abfd)->e_phnum;
for (i = 0; i < c; i++, p++)
if (p != NULL)
{
const char *s;
char buf[20];
unsigned int i, c;
switch (p->p_type)
fprintf (f, "\nProgram Header:\n");
c = elf_elfheader (abfd)->e_phnum;
for (i = 0; i < c; i++, p++)
{
case PT_NULL: s = "NULL"; break;
case PT_LOAD: s = "LOAD"; break;
case PT_DYNAMIC: s = "DYNAMIC"; break;
case PT_INTERP: s = "INTERP"; break;
case PT_NOTE: s = "NOTE"; break;
case PT_SHLIB: s = "SHLIB"; break;
case PT_PHDR: s = "PHDR"; break;
default: sprintf (buf, "0x%lx", p->p_type); s = buf; break;
const char *s;
char buf[20];
switch (p->p_type)
{
case PT_NULL: s = "NULL"; break;
case PT_LOAD: s = "LOAD"; break;
case PT_DYNAMIC: s = "DYNAMIC"; break;
case PT_INTERP: s = "INTERP"; break;
case PT_NOTE: s = "NOTE"; break;
case PT_SHLIB: s = "SHLIB"; break;
case PT_PHDR: s = "PHDR"; break;
default: sprintf (buf, "0x%lx", p->p_type); s = buf; break;
}
fprintf (f, "%8s off 0x", s);
fprintf_vma (f, p->p_offset);
fprintf (f, " vaddr 0x");
fprintf_vma (f, p->p_vaddr);
fprintf (f, " paddr 0x");
fprintf_vma (f, p->p_paddr);
fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align));
fprintf (f, " filesz 0x");
fprintf_vma (f, p->p_filesz);
fprintf (f, " memsz 0x");
fprintf_vma (f, p->p_memsz);
fprintf (f, " flags %c%c%c",
(p->p_flags & PF_R) != 0 ? 'r' : '-',
(p->p_flags & PF_W) != 0 ? 'w' : '-',
(p->p_flags & PF_X) != 0 ? 'x' : '-');
if ((p->p_flags &~ (PF_R | PF_W | PF_X)) != 0)
fprintf (f, " %lx", p->p_flags &~ (PF_R | PF_W | PF_X));
fprintf (f, "\n");
}
fprintf (f, "%8s off 0x", s);
fprintf_vma (f, p->p_offset);
fprintf (f, " vaddr 0x");
fprintf_vma (f, p->p_vaddr);
fprintf (f, " paddr 0x");
fprintf_vma (f, p->p_paddr);
fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align));
fprintf (f, " filesz 0x");
fprintf_vma (f, p->p_filesz);
fprintf (f, " memsz 0x");
fprintf_vma (f, p->p_memsz);
fprintf (f, " flags %c%c%c",
(p->p_flags & PF_R) != 0 ? 'r' : '-',
(p->p_flags & PF_W) != 0 ? 'w' : '-',
(p->p_flags & PF_X) != 0 ? 'x' : '-');
if ((p->p_flags &~ (PF_R | PF_W | PF_X)) != 0)
fprintf (f, " %lx", p->p_flags &~ (PF_R | PF_W | PF_X));
fprintf (f, "\n");
}
s = bfd_get_section_by_name (abfd, ".dynamic");
if (s != NULL)
{
int elfsec;
unsigned long link;
bfd_byte *extdyn, *extdynend;
size_t extdynsize;
void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
fprintf (f, "\nDynamic Section:\n");
dynbuf = (bfd_byte *) bfd_malloc (s->_raw_size);
if (dynbuf == NULL)
goto error_return;
if (! bfd_get_section_contents (abfd, s, (PTR) dynbuf, (file_ptr) 0,
s->_raw_size))
goto error_return;
elfsec = _bfd_elf_section_from_bfd_section (abfd, s);
if (elfsec == -1)
goto error_return;
link = elf_elfsections (abfd)[elfsec]->sh_link;
extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
extdyn = dynbuf;
extdynend = extdyn + s->_raw_size;
for (; extdyn < extdynend; extdyn += extdynsize)
{
Elf_Internal_Dyn dyn;
const char *name;
char ab[20];
boolean stringp;
(*swap_dyn_in) (abfd, (PTR) extdyn, &dyn);
if (dyn.d_tag == DT_NULL)
break;
stringp = false;
switch (dyn.d_tag)
{
default:
sprintf (ab, "0x%x", dyn.d_tag);
name = ab;
break;
case DT_NEEDED: name = "NEEDED"; stringp = true; break;
case DT_PLTRELSZ: name = "PLTRELSZ"; break;
case DT_PLTGOT: name = "PLTGOT"; break;
case DT_HASH: name = "HASH"; break;
case DT_STRTAB: name = "STRTAB"; break;
case DT_SYMTAB: name = "SYMTAB"; break;
case DT_RELA: name = "RELA"; break;
case DT_RELASZ: name = "RELASZ"; break;
case DT_RELAENT: name = "RELAENT"; break;
case DT_STRSZ: name = "STRSZ"; break;
case DT_SYMENT: name = "SYMENT"; break;
case DT_INIT: name = "INIT"; break;
case DT_FINI: name = "FINI"; break;
case DT_SONAME: name = "SONAME"; stringp = true; break;
case DT_RPATH: name = "RPATH"; stringp = true; break;
case DT_SYMBOLIC: name = "SYMBOLIC"; break;
case DT_REL: name = "REL"; break;
case DT_RELSZ: name = "RELSZ"; break;
case DT_RELENT: name = "RELENT"; break;
case DT_PLTREL: name = "PLTREL"; break;
case DT_DEBUG: name = "DEBUG"; break;
case DT_TEXTREL: name = "TEXTREL"; break;
case DT_JMPREL: name = "JMPREL"; break;
}
fprintf (f, " %-11s ", name);
if (! stringp)
fprintf (f, "0x%x", dyn.d_un.d_val);
else
{
const char *string;
string = bfd_elf_string_from_elf_section (abfd, link,
dyn.d_un.d_val);
if (string == NULL)
goto error_return;
fprintf (f, "%s", string);
}
fprintf (f, "\n");
}
free (dynbuf);
dynbuf = NULL;
}
return true;
error_return:
if (dynbuf != NULL)
free (dynbuf);
return false;
}
/* Display ELF-specific fields of a symbol. */

View File

@ -393,11 +393,13 @@ elf_swap_reloca_out (abfd, src, dst)
}
INLINE void
elf_swap_dyn_in (abfd, src, dst)
elf_swap_dyn_in (abfd, p, dst)
bfd *abfd;
const Elf_External_Dyn *src;
const PTR p;
Elf_Internal_Dyn *dst;
{
const Elf_External_Dyn *src = (const Elf_External_Dyn *) p;
dst->d_tag = get_word (abfd, src->d_tag);
dst->d_un.d_val = get_word (abfd, src->d_un.d_val);
}
@ -477,11 +479,11 @@ elf_object_p (abfd)
switch (x_ehdr.e_ident[EI_DATA])
{
case ELFDATA2MSB: /* Big-endian */
if (!abfd->xvec->header_byteorder_big_p)
if (! bfd_header_big_endian (abfd))
goto got_wrong_format_error;
break;
case ELFDATA2LSB: /* Little-endian */
if (abfd->xvec->header_byteorder_big_p)
if (! bfd_header_little_endian (abfd))
goto got_wrong_format_error;
break;
case ELFDATANONE: /* No data encoding specified */
@ -1269,4 +1271,5 @@ const struct elf_size_info NAME(_bfd_elf,size_info) = {
elf_swap_symbol_out,
elf_slurp_reloc_table,
elf_slurp_symbol_table,
elf_swap_dyn_in
};