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2008-11-06 Tristan Gingold <gingold@adacore.com>

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* mach-o.h (BFD_MACH_O_NO_SECT): Add; reorders the macros.
	(BFD_MACH_O_SYM_NTYPE, BFD_MACH_O_SYM_NSECT,
	BFD_MACH_O_SYM_NDESC): New macros.
	(bfd_mach_o_i386_thread_flavour): Define according to the latest
	definition from system header.
	(bfd_mach_o_load_command_type): Add BFD_MACH_O_LC_RPATH,
	BFD_MACH_O_LC_CODE_SIGNATURE.
	(BFD_MACH_O_SECTION_TYPE_MASK, BFD_MACH_O_SECTION_ATTRIBUTES_MASK,
	BFD_MACH_O_SECTION_ATTRIBUTES_SYS, BFD_MACH_O_SECTION_ATTRIBUTES_USR,
	BFD_MACH_O_S_ATTR_LOC_RELOC, BFD_MACH_O_S_ATTR_EXT_RELOC,
	BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS, BFD_MACH_O_S_ATTR_DEBUG,
	BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS): Add.
	(bfd_mach_o_segment_command): Add room for a nul terminator in
	segname field.
	(BFD_MACH_O_PROT_READ, BFD_MACH_O_PROT_WRITE,
	BFD_MACH_O_PROT_EXECUTE): Add.
	(INDIRECT_SYMBOL_LOCAL): Renames to BFD_MACH_O_INDIRECT_SYMBOL_LOCAL.
	(INDIRECT_SYMBOL_ABS): Renames to BFD_MACH_O_INDIRECT_SYMBOL_ABS.
	(bfd_mach_o_uuid_command): Add the structure.
	(bfd_mach_o_load_command): Add uuid field.
	(bfd_get_mach_o_data): New macro.
	* mach-o.c (bfd_mach_o_bfd_print_private_bfd_data): New function which
	replaces the macro.
	(SECTION_TYPE, SECTION_ATTRIBUTES, SECTION_ATTRIBUTES_USR,
	S_ATTR_PURE_INSTRUCTIONS, SECTION_ATTRIBUTES_SYS,
	S_ATTR_SOME_INSTRUCTIONS, S_ATTR_EXT_RELOC, S_ATTR_LOC_RELOC): Renamed
	and moved to mach-o.h.
	(N_STAB, N_TYPE, N_EXT, N_UNDF, N_ABS, N_TEXT, N_DATA, N_BSS,
	N_SECT, N_INDR): Removed as they duplicated macros in mach-o.h.
	(bfd_mach_o_print_symbol): Print much more details.
	(bfd_mach_o_make_bfd_section): Add prot argument, use canonical
	dwarf name for dwarf sections.  Precisely set section flags.
	(bfd_mach_o_scan_read_section_32): Add prot argument.
	(bfd_mach_o_scan_read_section_64): Ditto.
	(bfd_mach_o_scan_read_section): Ditto.
	(bfd_mach_o_scan_read_symtab_symbol): Set section for debugging
	stabs, set BSF_GLOBAL and LOCAL flags correctly.  Fix section
	for N_SECT symbols.
	(bfd_mach_o_i386_flavour_string): Reindent and adjust for new
	names.
	(bfd_mach_o_scan_read_symtab): Set HAS_SYMS flags on bfd if there
	are symbols.
	(bfd_mach_o_scan_read_uuid): New function.
	(bfd_mach_o_scan_read_segment): Add a trailing nul.  Segments
	flags are now simply HAS_CONTENTS.  Pass protection to
	bfd_mach_o_scan_read_section.
	(bfd_mach_o_scan_read_command): Decode UUID command.
	(bfd_mach_o_flatten_sections): Add comments.  Fix flavour names.
	(bfd_mach_o_scan): Set flags according to file type.
	(mach_o_fat_archentry): Remove abfd field.
	(bfd_mach_o_archive_p): Remove initialization of abfd field.
	(bfd_mach_o_openr_next_archived_file): Find previous archive
	by position and not by bfd (as former bfds may have been freed).
	Give architecture name to archived file.
	* mach-o-target.c (TARGET_NAME): Use generic archive for non fat
	targets.
This commit is contained in:
Tristan Gingold 2008-11-06 13:03:43 +00:00
parent c8941035c5
commit 15e1c58a0e
4 changed files with 484 additions and 120 deletions
Download patch file Download diff file Expand all files Collapse all files

60
bfd/ChangeLog
View file

@ -1,3 +1,63 @@
2008-11-06 Tristan Gingold <gingold@adacore.com>
* mach-o.h (BFD_MACH_O_NO_SECT): Add; reorders the macros.
(BFD_MACH_O_SYM_NTYPE, BFD_MACH_O_SYM_NSECT,
BFD_MACH_O_SYM_NDESC): New macros.
(bfd_mach_o_i386_thread_flavour): Define according to the latest
definition from system header.
(bfd_mach_o_load_command_type): Add BFD_MACH_O_LC_RPATH,
BFD_MACH_O_LC_CODE_SIGNATURE.
(BFD_MACH_O_SECTION_TYPE_MASK, BFD_MACH_O_SECTION_ATTRIBUTES_MASK,
BFD_MACH_O_SECTION_ATTRIBUTES_SYS, BFD_MACH_O_SECTION_ATTRIBUTES_USR,
BFD_MACH_O_S_ATTR_LOC_RELOC, BFD_MACH_O_S_ATTR_EXT_RELOC,
BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS, BFD_MACH_O_S_ATTR_DEBUG,
BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS): Add.
(bfd_mach_o_segment_command): Add room for a nul terminator in
segname field.
(BFD_MACH_O_PROT_READ, BFD_MACH_O_PROT_WRITE,
BFD_MACH_O_PROT_EXECUTE): Add.
(INDIRECT_SYMBOL_LOCAL): Renames to BFD_MACH_O_INDIRECT_SYMBOL_LOCAL.
(INDIRECT_SYMBOL_ABS): Renames to BFD_MACH_O_INDIRECT_SYMBOL_ABS.
(bfd_mach_o_uuid_command): Add the structure.
(bfd_mach_o_load_command): Add uuid field.
(bfd_get_mach_o_data): New macro.
* mach-o.c (bfd_mach_o_bfd_print_private_bfd_data): New function which
replaces the macro.
(SECTION_TYPE, SECTION_ATTRIBUTES, SECTION_ATTRIBUTES_USR,
S_ATTR_PURE_INSTRUCTIONS, SECTION_ATTRIBUTES_SYS,
S_ATTR_SOME_INSTRUCTIONS, S_ATTR_EXT_RELOC, S_ATTR_LOC_RELOC): Renamed
and moved to mach-o.h.
(N_STAB, N_TYPE, N_EXT, N_UNDF, N_ABS, N_TEXT, N_DATA, N_BSS,
N_SECT, N_INDR): Removed as they duplicated macros in mach-o.h.
(bfd_mach_o_print_symbol): Print much more details.
(bfd_mach_o_make_bfd_section): Add prot argument, use canonical
dwarf name for dwarf sections. Precisely set section flags.
(bfd_mach_o_scan_read_section_32): Add prot argument.
(bfd_mach_o_scan_read_section_64): Ditto.
(bfd_mach_o_scan_read_section): Ditto.
(bfd_mach_o_scan_read_symtab_symbol): Set section for debugging
stabs, set BSF_GLOBAL and LOCAL flags correctly. Fix section
for N_SECT symbols.
(bfd_mach_o_i386_flavour_string): Reindent and adjust for new
names.
(bfd_mach_o_scan_read_symtab): Set HAS_SYMS flags on bfd if there
are symbols.
(bfd_mach_o_scan_read_uuid): New function.
(bfd_mach_o_scan_read_segment): Add a trailing nul. Segments
flags are now simply HAS_CONTENTS. Pass protection to
bfd_mach_o_scan_read_section.
(bfd_mach_o_scan_read_command): Decode UUID command.
(bfd_mach_o_flatten_sections): Add comments. Fix flavour names.
(bfd_mach_o_scan): Set flags according to file type.
(mach_o_fat_archentry): Remove abfd field.
(bfd_mach_o_archive_p): Remove initialization of abfd field.
(bfd_mach_o_openr_next_archived_file): Find previous archive
by position and not by bfd (as former bfds may have been freed).
Give architecture name to archived file.
* mach-o-target.c (TARGET_NAME): Use generic archive for non fat
targets.
2008-10-30 Jay Krell <jay.krell@cornell.edu>
* cache.c (cache_bread): Cast void * pointer before performing

10
bfd/mach-o-target.c
View file

@ -84,27 +84,31 @@ const bfd_target TARGET_NAME =
#else
_bfd_dummy_target,
bfd_mach_o_object_p,
_bfd_dummy_target,
bfd_generic_archive_p,
bfd_mach_o_core_p
#endif
},
{ /* bfd_set_format. */
bfd_false,
bfd_mach_o_mkobject,
bfd_false,
_bfd_generic_mkarchive,
bfd_mach_o_mkobject,
},
{ /* bfd_write_contents. */
bfd_false,
bfd_mach_o_write_contents,
bfd_false,
_bfd_write_archive_contents,
bfd_mach_o_write_contents,
},
BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
BFD_JUMP_TABLE_COPY (bfd_mach_o),
BFD_JUMP_TABLE_CORE (bfd_mach_o),
#if TARGET_ARCHIVE
BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
#else
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
#endif
BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
BFD_JUMP_TABLE_WRITE (bfd_mach_o),

440
bfd/mach-o.c
View file

@ -24,6 +24,7 @@
#include "bfd.h"
#include "libbfd.h"
#include "libiberty.h"
#include "aout/stab_gnu.h"
#include <ctype.h>
#ifndef BFD_IO_FUNCS
@ -64,7 +65,6 @@
#define bfd_mach_o_set_arch_mach bfd_default_set_arch_mach
#define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
#define bfd_mach_o_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
#define bfd_mach_o_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
#define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents
#define bfd_mach_o_set_section_contents _bfd_generic_set_section_contents
#define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections
@ -75,37 +75,6 @@
#define bfd_mach_o_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
#define bfd_mach_o_core_file_matches_executable_p generic_core_file_matches_executable_p
/* The flags field of a section structure is separated into two parts a section
type and section attributes. The section types are mutually exclusive (it
can only have one type) but the section attributes are not (it may have more
than one attribute). */
#define SECTION_TYPE 0x000000ff /* 256 section types. */
#define SECTION_ATTRIBUTES 0xffffff00 /* 24 section attributes. */
/* Constants for the section attributes part of the flags field of a section
structure. */
#define SECTION_ATTRIBUTES_USR 0xff000000 /* User-settable attributes. */
#define S_ATTR_PURE_INSTRUCTIONS 0x80000000 /* Section contains only true machine instructions. */
#define SECTION_ATTRIBUTES_SYS 0x00ffff00 /* System setable attributes. */
#define S_ATTR_SOME_INSTRUCTIONS 0x00000400 /* Section contains some machine instructions. */
#define S_ATTR_EXT_RELOC 0x00000200 /* Section has external relocation entries. */
#define S_ATTR_LOC_RELOC 0x00000100 /* Section has local relocation entries. */
#define N_STAB 0xe0
#define N_TYPE 0x1e
#define N_EXT 0x01
#define N_UNDF 0x0
#define N_ABS 0x2
#define N_TEXT 0x4
#define N_DATA 0x6
#define N_BSS 0x8
#define N_SECT 0xe
#define N_INDR 0xa
static unsigned int
bfd_mach_o_version (bfd *abfd)
{
@ -255,6 +224,10 @@ bfd_mach_o_print_symbol (bfd *abfd,
bfd_print_symbol_type how)
{
FILE *file = (FILE *) afile;
unsigned char ntype;
unsigned char nsect;
unsigned int ndesc;
const char *name;
switch (how)
{
@ -263,7 +236,40 @@ bfd_mach_o_print_symbol (bfd *abfd,
break;
default:
bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
fprintf (file, " %-5s %s", symbol->section->name, symbol->name);
ntype = BFD_MACH_O_SYM_NTYPE (symbol);
nsect = BFD_MACH_O_SYM_NSECT (symbol);
ndesc = BFD_MACH_O_SYM_NDESC (symbol);
if (ntype & BFD_MACH_O_N_STAB)
name = bfd_get_stab_name (ntype);
else
switch (ntype & BFD_MACH_O_N_TYPE)
{
case BFD_MACH_O_N_UNDF:
name = "UND";
break;
case BFD_MACH_O_N_ABS:
name = "ABS";
break;
case BFD_MACH_O_N_INDR:
name = "INDR";
break;
case BFD_MACH_O_N_PBUD:
name = "PBUD";
break;
case BFD_MACH_O_N_SECT:
name = "SECT";
break;
default:
name = "???";
break;
}
if (name == NULL)
name = "";
fprintf (file, " %02x %-6s %02x %04x", ntype, name, nsect, ndesc);
if ((ntype & BFD_MACH_O_N_STAB) == 0
&& (ntype & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
fprintf (file, " %-5s", symbol->section->name);
fprintf (file, " %s", symbol->name);
}
}
@ -554,9 +560,9 @@ bfd_mach_o_scan_write_symtab_symbols (bfd *abfd, bfd_mach_o_load_command *comman
s = &sym->symbols[i];
/* Instead just set from the stored values. */
ntype = (s->udata.i >> 24) & 0xff;
nsect = (s->udata.i >> 16) & 0xff;
ndesc = s->udata.i & 0xffff;
ntype = BFD_MACH_O_SYM_NTYPE (s);
nsect = BFD_MACH_O_SYM_NSECT (s);
ndesc = BFD_MACH_O_SYM_NDESC (s);
bfd_h_put_32 (abfd, s->name - sym->strtab, buf);
bfd_h_put_8 (abfd, ntype, buf + 4);
@ -769,7 +775,8 @@ bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
}
static asection *
bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section)
bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section,
unsigned long prot)
{
asection *bfdsec;
char *sname;
@ -784,11 +791,31 @@ bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section)
sname = bfd_alloc (abfd, snamelen);
if (sname == NULL)
return NULL;
sprintf (sname, "%s.%s.%s", prefix, section->segname, section->sectname);
flags = SEC_ALLOC;
if ((section->flags & SECTION_TYPE) != BFD_MACH_O_S_ZEROFILL)
flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
/* Use canonical dwarf section names for dwarf sections. */
if (strcmp (section->segname, "__DWARF") == 0
&& strncmp (section->sectname, "__", 2) == 0)
sprintf (sname, ".%s", section->sectname + 2);
else
sprintf (sname, "%s.%s.%s", prefix, section->segname, section->sectname);
if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
flags = SEC_HAS_CONTENTS | SEC_DEBUGGING;
else
{
flags = SEC_ALLOC;
if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
!= BFD_MACH_O_S_ZEROFILL)
{
flags |= SEC_HAS_CONTENTS | SEC_LOAD;
if (prot & BFD_MACH_O_PROT_EXECUTE)
flags |= SEC_CODE;
if (prot & BFD_MACH_O_PROT_WRITE)
flags |= SEC_DATA;
else if (prot & BFD_MACH_O_PROT_READ)
flags |= SEC_READONLY;
}
}
bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, flags);
if (bfdsec == NULL)
return NULL;
@ -806,7 +833,8 @@ bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section)
static int
bfd_mach_o_scan_read_section_32 (bfd *abfd,
bfd_mach_o_section *section,
bfd_vma offset)
bfd_vma offset,
unsigned long prot)
{
unsigned char buf[68];
@ -828,7 +856,7 @@ bfd_mach_o_scan_read_section_32 (bfd *abfd,
section->reserved1 = bfd_h_get_32 (abfd, buf + 60);
section->reserved2 = bfd_h_get_32 (abfd, buf + 64);
section->reserved3 = 0;
section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section);
section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section, prot);
if (section->bfdsection == NULL)
return -1;
@ -839,7 +867,8 @@ bfd_mach_o_scan_read_section_32 (bfd *abfd,
static int
bfd_mach_o_scan_read_section_64 (bfd *abfd,
bfd_mach_o_section *section,
bfd_vma offset)
bfd_vma offset,
unsigned long prot)
{
unsigned char buf[80];
@ -861,7 +890,7 @@ bfd_mach_o_scan_read_section_64 (bfd *abfd,
section->reserved1 = bfd_h_get_32 (abfd, buf + 68);
section->reserved2 = bfd_h_get_32 (abfd, buf + 72);
section->reserved3 = bfd_h_get_32 (abfd, buf + 76);
section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section);
section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section, prot);
if (section->bfdsection == NULL)
return -1;
@ -873,12 +902,13 @@ static int
bfd_mach_o_scan_read_section (bfd *abfd,
bfd_mach_o_section *section,
bfd_vma offset,
unsigned long prot,
unsigned int wide)
{
if (wide)
return bfd_mach_o_scan_read_section_64 (abfd, section, offset);
return bfd_mach_o_scan_read_section_64 (abfd, section, offset, prot);
else
return bfd_mach_o_scan_read_section_32 (abfd, section, offset);
return bfd_mach_o_scan_read_section_32 (abfd, section, offset, prot);
}
int
@ -912,7 +942,7 @@ bfd_mach_o_scan_read_symtab_symbol (bfd *abfd,
stroff = bfd_h_get_32 (abfd, buf);
type = bfd_h_get_8 (abfd, buf + 4);
symtype = (type & 0x0e);
section = bfd_h_get_8 (abfd, buf + 5) - 1;
section = bfd_h_get_8 (abfd, buf + 5);
desc = bfd_h_get_16 (abfd, buf + 6);
if (wide)
value = bfd_h_get_64 (abfd, buf + 8);
@ -936,20 +966,35 @@ bfd_mach_o_scan_read_symtab_symbol (bfd *abfd,
{
s->flags |= BSF_DEBUGGING;
s->section = bfd_und_section_ptr;
switch (type)
{
case N_FUN:
case N_STSYM:
case N_LCSYM:
case N_BNSYM:
case N_SLINE:
case N_ENSYM:
case N_ECOMM:
case N_ECOML:
case N_GSYM:
if ((section > 0) && (section <= mdata->nsects))
{
s->section = mdata->sections[section - 1]->bfdsection;
s->value = s->value - mdata->sections[section - 1]->addr;
}
break;
}
}
else
{
if (type & BFD_MACH_O_N_PEXT)
{
type &= ~BFD_MACH_O_N_PEXT;
s->flags |= BSF_GLOBAL;
}
s->flags |= BSF_GLOBAL;
if (type & BFD_MACH_O_N_EXT)
{
type &= ~BFD_MACH_O_N_EXT;
s->flags |= BSF_GLOBAL;
}
s->flags |= BSF_GLOBAL;
if (!(type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)))
s->flags |= BSF_LOCAL;
switch (symtype)
{
@ -965,8 +1010,8 @@ bfd_mach_o_scan_read_symtab_symbol (bfd *abfd,
case BFD_MACH_O_N_SECT:
if ((section > 0) && (section <= mdata->nsects))
{
s->section = mdata->sections[section]->bfdsection;
s->value = s->value - mdata->sections[section]->addr;
s->section = mdata->sections[section - 1]->bfdsection;
s->value = s->value - mdata->sections[section - 1]->addr;
}
else
{
@ -1094,18 +1139,19 @@ bfd_mach_o_i386_flavour_string (unsigned int flavour)
{
switch ((int) flavour)
{
case BFD_MACH_O_i386_NEW_THREAD_STATE: return "i386_NEW_THREAD_STATE";
case BFD_MACH_O_i386_FLOAT_STATE: return "i386_FLOAT_STATE";
case BFD_MACH_O_i386_ISA_PORT_MAP_STATE: return "i386_ISA_PORT_MAP_STATE";
case BFD_MACH_O_i386_V86_ASSIST_STATE: return "i386_V86_ASSIST_STATE";
case BFD_MACH_O_i386_REGS_SEGS_STATE: return "i386_REGS_SEGS_STATE";
case BFD_MACH_O_i386_THREAD_SYSCALL_STATE: return "i386_THREAD_SYSCALL_STATE";
case BFD_MACH_O_i386_THREAD_STATE_NONE: return "i386_THREAD_STATE_NONE";
case BFD_MACH_O_i386_SAVED_STATE: return "i386_SAVED_STATE";
case BFD_MACH_O_i386_THREAD_STATE: return "i386_THREAD_STATE";
case BFD_MACH_O_i386_THREAD_FPSTATE: return "i386_THREAD_FPSTATE";
case BFD_MACH_O_i386_THREAD_EXCEPTSTATE: return "i386_THREAD_EXCEPTSTATE";
case BFD_MACH_O_i386_THREAD_CTHREADSTATE: return "i386_THREAD_CTHREADSTATE";
case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
case BFD_MACH_O_THREAD_STATE_NONE: return "THREAD_STATE_NONE";
default: return "UNKNOWN";
}
}
@ -1422,6 +1468,9 @@ bfd_mach_o_scan_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
seg->stabs_segment = bfdsec;
if (seg->nsyms != 0)
abfd->flags |= HAS_SYMS;
prefix = "LC_SYMTAB.stabstr";
sname = bfd_alloc (abfd, strlen (prefix) + 1);
if (sname == NULL)
@ -1443,6 +1492,40 @@ bfd_mach_o_scan_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
return 0;
}
static int
bfd_mach_o_scan_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
{
bfd_mach_o_uuid_command *cmd = &command->command.uuid;
asection *bfdsec;
char *sname;
static const char prefix[] = "LC_UUID";
BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bread ((PTR) cmd->uuid, 16, abfd) != 16)
return -1;
sname = bfd_alloc (abfd, strlen (prefix) + 1);
if (sname == NULL)
return -1;
strcpy (sname, prefix);
bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, SEC_HAS_CONTENTS);
if (bfdsec == NULL)
return -1;
bfdsec->vma = 0;
bfdsec->lma = 0;
bfdsec->size = command->len - 8;
bfdsec->filepos = command->offset + 8;
bfdsec->alignment_power = 0;
cmd->section = bfdsec;
return 0;
}
static int
bfd_mach_o_scan_read_segment (bfd *abfd,
bfd_mach_o_load_command *command,
@ -1465,6 +1548,7 @@ bfd_mach_o_scan_read_segment (bfd *abfd,
return -1;
memcpy (seg->segname, buf, 16);
seg->segname[16] = '\0';
seg->vmaddr = bfd_h_get_64 (abfd, buf + 16);
seg->vmsize = bfd_h_get_64 (abfd, buf + 24);
@ -1484,6 +1568,7 @@ bfd_mach_o_scan_read_segment (bfd *abfd,
return -1;
memcpy (seg->segname, buf, 16);
seg->segname[16] = '\0';
seg->vmaddr = bfd_h_get_32 (abfd, buf + 16);
seg->vmsize = bfd_h_get_32 (abfd, buf + 20);
@ -1510,7 +1595,7 @@ bfd_mach_o_scan_read_segment (bfd *abfd,
bfdsec->size = seg->filesize;
bfdsec->filepos = seg->fileoff;
bfdsec->alignment_power = 0x0;
bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
bfdsec->flags = SEC_HAS_CONTENTS;
bfdsec->segment_mark = 1;
seg->segment = bfdsec;
@ -1530,7 +1615,7 @@ bfd_mach_o_scan_read_segment (bfd *abfd,
segoff = command->offset + 48 + 8 + (i * 68);
if (bfd_mach_o_scan_read_section
(abfd, &seg->sections[i], segoff, wide) != 0)
(abfd, &seg->sections[i], segoff, seg->initprot, wide) != 0)
return -1;
}
}
@ -1618,6 +1703,12 @@ bfd_mach_o_scan_read_command (bfd *abfd, bfd_mach_o_load_command *command)
case BFD_MACH_O_LC_TWOLEVEL_HINTS:
case BFD_MACH_O_LC_PREBIND_CKSUM:
break;
case BFD_MACH_O_LC_UUID:
if (bfd_mach_o_scan_read_uuid (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_CODE_SIGNATURE:
break;
default:
fprintf (stderr, "unable to read unknown load command 0x%lx\n",
(unsigned long) command->type);
@ -1634,6 +1725,7 @@ bfd_mach_o_flatten_sections (bfd *abfd)
long csect = 0;
unsigned long i, j;
/* Count total number of sections. */
mdata->nsects = 0;
for (i = 0; i < mdata->header.ncmds; i++)
@ -1648,8 +1740,11 @@ bfd_mach_o_flatten_sections (bfd *abfd)
}
}
/* Allocate sections array. */
mdata->sections = bfd_alloc (abfd,
mdata->nsects * sizeof (bfd_mach_o_section *));
/* Fill the array. */
csect = 0;
for (i = 0; i < mdata->header.ncmds; i++)
@ -1694,7 +1789,7 @@ bfd_mach_o_scan_start_address (bfd *abfd)
{
if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
&& (cmd->flavours[i].flavour
== (unsigned long) BFD_MACH_O_i386_THREAD_STATE))
== (unsigned long) BFD_MACH_O_x86_THREAD_STATE32))
{
unsigned char buf[4];
@ -1761,8 +1856,21 @@ bfd_mach_o_scan (bfd *abfd,
mdata->header = *header;
mdata->symbols = NULL;
abfd->flags = (abfd->xvec->object_flags
| (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
abfd->flags = abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS);
switch (header->filetype)
{
case BFD_MACH_O_MH_OBJECT:
abfd->flags |= HAS_RELOC;
break;
case BFD_MACH_O_MH_EXECUTE:
abfd->flags |= EXEC_P;
break;
case BFD_MACH_O_MH_DYLIB:
case BFD_MACH_O_MH_BUNDLE:
abfd->flags |= DYNAMIC;
break;
}
abfd->tdata.mach_o_data = mdata;
bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
@ -1938,7 +2046,6 @@ typedef struct mach_o_fat_archentry
unsigned long offset;
unsigned long size;
unsigned long align;
bfd *abfd;
} mach_o_fat_archentry;
typedef struct mach_o_fat_data_struct
@ -1984,7 +2091,6 @@ bfd_mach_o_archive_p (bfd *abfd)
adata->archentries[i].offset = bfd_getb32 (buf + 8);
adata->archentries[i].size = bfd_getb32 (buf + 12);
adata->archentries[i].align = bfd_getb32 (buf + 16);
adata->archentries[i].abfd = NULL;
}
abfd->tdata.mach_o_fat_data = adata;
@ -2003,6 +2109,11 @@ bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
mach_o_fat_data_struct *adata;
mach_o_fat_archentry *entry = NULL;
unsigned long i;
bfd *nbfd;
const char *arch_name;
enum bfd_architecture arch_type;
unsigned long arch_subtype;
char *s = NULL;
adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
BFD_ASSERT (adata != NULL);
@ -2014,7 +2125,7 @@ bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
{
for (i = 0; i < adata->nfat_arch; i++)
{
if (adata->archentries[i].abfd == prev)
if (adata->archentries[i].offset == prev->origin)
break;
}
@ -2034,25 +2145,23 @@ bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
}
entry = &adata->archentries[i];
if (entry->abfd == NULL)
{
bfd *nbfd = _bfd_new_bfd_contained_in (archive);
char *s = NULL;
nbfd = _bfd_new_bfd_contained_in (archive);
if (nbfd == NULL)
return NULL;
if (nbfd == NULL)
return NULL;
nbfd->origin = entry->offset;
nbfd->origin = entry->offset;
s = bfd_malloc (strlen (archive->filename) + 1);
if (s == NULL)
return NULL;
strcpy (s, archive->filename);
nbfd->filename = s;
nbfd->iostream = NULL;
entry->abfd = nbfd;
}
bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
&arch_type, &arch_subtype);
arch_name = bfd_printable_arch_mach (arch_type, arch_subtype);
s = bfd_malloc (strlen (arch_name) + 1);
if (s == NULL)
return NULL;
strcpy (s, arch_name);
nbfd->filename = s;
nbfd->iostream = NULL;
return entry->abfd;
return nbfd;
}
int
@ -2161,6 +2270,147 @@ bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
}
}
static bfd_boolean
bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, PTR ptr)
{
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
FILE *file = (FILE *) ptr;
unsigned int i, j;
unsigned int sec_nbr = 0;
fprintf (file, _("Segments and Sections:\n"));
fprintf (file, _(" #: Segment name Section name Address\n"));
for (i = 0; i < mdata->header.ncmds; i++)
{
bfd_mach_o_segment_command *seg;
if (mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT
&& mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT_64)
continue;
seg = &mdata->commands[i].command.segment;
fprintf (file, "[Segment %-16s ", seg->segname);
fprintf_vma (file, seg->vmaddr);
fprintf (file, "-");
fprintf_vma (file, seg->vmaddr + seg->vmsize - 1);
fputc (' ', file);
fputc (seg->initprot & BFD_MACH_O_PROT_READ ? 'r' : '-', file);
fputc (seg->initprot & BFD_MACH_O_PROT_WRITE ? 'w' : '-', file);
fputc (seg->initprot & BFD_MACH_O_PROT_EXECUTE ? 'x' : '-', file);
fprintf (file, "]\n");
for (j = 0; j < seg->nsects; j++)
{
bfd_mach_o_section *sec = &seg->sections[j];
fprintf (file, "%02u: %-16s %-16s ", ++sec_nbr,
sec->segname, sec->sectname);
fprintf_vma (file, sec->addr);
fprintf (file, " ");
fprintf_vma (file, sec->size);
fprintf (file, " %08lx\n", sec->flags);
}
}
for (i = 0; i < mdata->header.ncmds; i++)
{
bfd_mach_o_load_command *cmd = &mdata->commands[i];
switch (cmd->type)
{
case BFD_MACH_O_LC_SEGMENT:
case BFD_MACH_O_LC_SEGMENT_64:
break;
case BFD_MACH_O_LC_UUID:
{
bfd_mach_o_uuid_command *uuid = &cmd->command.uuid;
unsigned int i;
fprintf (file, "\n"
"UUID:");
for (i = 0; i < sizeof (uuid->uuid); i++)
fprintf (file, " %02x", uuid->uuid[i]);
fputc ('\n', file);
}
break;
case BFD_MACH_O_LC_LOAD_DYLIB:
{
bfd_mach_o_dylib_command *dylib = &cmd->command.dylib;
bfd_byte *data = NULL;
if (! bfd_malloc_and_get_section (abfd, dylib->section, &data))
{
if (data != NULL)
free (data);
break;
}
fprintf (file, "\n"
"LOAD_DYLIB: %s\n",
data + dylib->name_offset - cmd->offset - 8);
fprintf (file, " time stamp: 0x%08lx\n",
dylib->timestamp);
fprintf (file, " current version: 0x%08lx\n",
dylib->current_version);
fprintf (file, " comptibility version: 0x%08lx\n",
dylib->compatibility_version);
free (data);
break;
}
case BFD_MACH_O_LC_LOAD_DYLINKER:
{
bfd_mach_o_dylinker_command *linker = &cmd->command.dylinker;
bfd_byte *data = NULL;
if (! bfd_malloc_and_get_section (abfd, linker->section, &data))
{
if (data != NULL)
free (data);
break;
}
fprintf (file, "\n"
"LOAD_DYLINKER: %s\n",
data + linker->name_offset - cmd->offset - 8);
free (data);
break;
}
case BFD_MACH_O_LC_SYMTAB:
{
bfd_mach_o_symtab_command *symtab = &cmd->command.symtab;
fprintf (file, "\n"
"LC_SYMTAB: nsyms: %lu, strsize: %lu\n",
symtab->nsyms, symtab->strsize);
break;
}
case BFD_MACH_O_LC_DYSYMTAB:
{
bfd_mach_o_dysymtab_command *dysymtab = &cmd->command.dysymtab;
fprintf (file, "\n"
"LC_DYSYMTAB:\n"
" local symbols: index: %lu number: %lu\n",
dysymtab->ilocalsym, dysymtab->nlocalsym);
fprintf (file,
" external symbols: index: %lu number: %lu\n",
dysymtab->iextdefsym, dysymtab->nextdefsym);
fprintf (file,
" undefined symbols: index: %lu number: %lu\n",
dysymtab->iundefsym, dysymtab->nundefsym);
fprintf (file,
" ntoc: offset: %lu number: %lu\n",
dysymtab->tocoff, dysymtab->ntoc);
fprintf (file,
" module table: offset: %lu number: %lu\n",
dysymtab->modtaboff, dysymtab->nmodtab);
break;
}
default:
fprintf (file, "LC_%d\n", cmd->type);
break;
}
}
return TRUE;
}
int
bfd_mach_o_core_fetch_environment (bfd *abfd,
unsigned char **rbuf,

94
bfd/mach-o.h
View file

@ -30,9 +30,15 @@
#define BFD_MACH_O_N_EXT 0x01 /* External symbol bit, set for external symbols. */
#define BFD_MACH_O_N_UNDF 0x00 /* Undefined, n_sect == NO_SECT. */
#define BFD_MACH_O_N_ABS 0x02 /* Absolute, n_sect == NO_SECT. */
#define BFD_MACH_O_N_SECT 0x0e /* Defined in section number n_sect. */
#define BFD_MACH_O_N_PBUD 0x0c /* Prebound undefined (defined in a dylib). */
#define BFD_MACH_O_N_INDR 0x0a /* Indirect. */
#define BFD_MACH_O_N_PBUD 0x0c /* Prebound undefined (defined in a dylib). */
#define BFD_MACH_O_N_SECT 0x0e /* Defined in section number n_sect. */
#define BFD_MACH_O_NO_SECT 0
#define BFD_MACH_O_SYM_NTYPE(SYM) (((SYM)->udata.i >> 24) & 0xff)
#define BFD_MACH_O_SYM_NSECT(SYM) (((SYM)->udata.i >> 16) & 0xff)
#define BFD_MACH_O_SYM_NDESC(SYM) ((SYM)->udata.i & 0xffff)
typedef enum bfd_mach_o_ppc_thread_flavour
{
@ -44,26 +50,22 @@ typedef enum bfd_mach_o_ppc_thread_flavour
}
bfd_mach_o_ppc_thread_flavour;
/* Defined in <mach/i386/thread_status.h> */
typedef enum bfd_mach_o_i386_thread_flavour
{
BFD_MACH_O_i386_NEW_THREAD_STATE = 1,
BFD_MACH_O_i386_FLOAT_STATE = 2,
BFD_MACH_O_i386_ISA_PORT_MAP_STATE = 3,
BFD_MACH_O_i386_V86_ASSIST_STATE = 4,
BFD_MACH_O_i386_REGS_SEGS_STATE = 5,
BFD_MACH_O_i386_THREAD_SYSCALL_STATE = 6,
BFD_MACH_O_i386_SAVED_STATE = 8,
BFD_MACH_O_i386_THREAD_STATE = -1,
BFD_MACH_O_i386_THREAD_FPSTATE = -2,
BFD_MACH_O_i386_THREAD_EXCEPTSTATE = -3,
BFD_MACH_O_i386_THREAD_CTHREADSTATE = -4,
BFD_MACH_O_x86_THREAD_STATE32 = 1,
BFD_MACH_O_x86_FLOAT_STATE32 = 2,
BFD_MACH_O_x86_EXCEPTION_STATE32 = 3,
BFD_MACH_O_x86_THREAD_STATE64 = 4,
BFD_MACH_O_x86_FLOAT_STATE64 = 5,
BFD_MACH_O_x86_EXCEPTION_STATE64 = 6,
BFD_MACH_O_x86_THREAD_STATE = 7,
BFD_MACH_O_x86_FLOAT_STATE = 8,
BFD_MACH_O_x86_EXCEPTION_STATE = 9,
BFD_MACH_O_i386_THREAD_STATE_NONE = 10,
BFD_MACH_O_x86_DEBUG_STATE32 = 10,
BFD_MACH_O_x86_DEBUG_STATE64 = 11,
BFD_MACH_O_x86_DEBUG_STATE = 12,
BFD_MACH_O_THREAD_STATE_NONE = 13
}
bfd_mach_o_i386_thread_flavour;
@ -99,9 +101,11 @@ typedef enum bfd_mach_o_load_command_type
BFD_MACH_O_LC_LOAD_WEAK_DYLIB = 0x18,
BFD_MACH_O_LC_SEGMENT_64 = 0x19, /* 64-bit segment of this file to be
mapped. */
BFD_MACH_O_LC_ROUTINES_64 = 0x1a, /* Address of the dyld init routine
in a dylib. */
BFD_MACH_O_LC_UUID = 0x1b /* 128-bit UUID of the executable. */
BFD_MACH_O_LC_ROUTINES_64 = 0x1a, /* Address of the dyld init routine
in a dylib. */
BFD_MACH_O_LC_UUID = 0x1b, /* 128-bit UUID of the executable. */
BFD_MACH_O_LC_RPATH = 0x1c, /* Run path addiions. */
BFD_MACH_O_LC_CODE_SIGNATURE = 0x1d /* Local of code signature. */
}
bfd_mach_o_load_command_type;
@ -188,6 +192,35 @@ typedef enum bfd_mach_o_section_type
}
bfd_mach_o_section_type;
/* The flags field of a section structure is separated into two parts a section
type and section attributes. The section types are mutually exclusive (it
can only have one type) but the section attributes are not (it may have more
than one attribute). */
#define BFD_MACH_O_SECTION_TYPE_MASK 0x000000ff
/* Constants for the section attributes part of the flags field of a section
structure. */
#define BFD_MACH_O_SECTION_ATTRIBUTES_MASK 0xffffff00
/* System setable attributes. */
#define BFD_MACH_O_SECTION_ATTRIBUTES_SYS 0x00ffff00
/* User attributes. */
#define BFD_MACH_O_SECTION_ATTRIBUTES_USR 0xff000000
/* Section has local relocation entries. */
#define BFD_MACH_O_S_ATTR_LOC_RELOC 0x00000100
/* Section has external relocation entries. */
#define BFD_MACH_O_S_ATTR_EXT_RELOC 0x00000200
/* Section contains some machine instructions. */
#define BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS 0x00004000
#define BFD_MACH_O_S_ATTR_DEBUG 0x02000000
/* Section contains only true machine instructions. */
#define BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS 0x80000000
typedef unsigned long bfd_mach_o_cpu_subtype;
typedef struct bfd_mach_o_header
@ -226,13 +259,13 @@ bfd_mach_o_section;
typedef struct bfd_mach_o_segment_command
{
char segname[16];
char segname[16 + 1];
bfd_vma vmaddr;
bfd_vma vmsize;
bfd_vma fileoff;
unsigned long filesize;
unsigned long maxprot;
unsigned long initprot;
unsigned long maxprot; /* Maximum permitted protection. */
unsigned long initprot; /* Initial protection. */
unsigned long nsects;
unsigned long flags;
bfd_mach_o_section *sections;
@ -240,6 +273,11 @@ typedef struct bfd_mach_o_segment_command
}
bfd_mach_o_segment_command;
/* Protection flags. */
#define BFD_MACH_O_PROT_READ 0x01
#define BFD_MACH_O_PROT_WRITE 0x02
#define BFD_MACH_O_PROT_EXECUTE 0x04
typedef struct bfd_mach_o_symtab_command
{
unsigned long symoff;
@ -399,8 +437,8 @@ bfd_mach_o_dysymtab_command;
removed. In which case it has the value INDIRECT_SYMBOL_LOCAL. If the
symbol was also absolute INDIRECT_SYMBOL_ABS is or'ed with that. */
#define INDIRECT_SYMBOL_LOCAL 0x80000000
#define INDIRECT_SYMBOL_ABS 0x40000000
#define BFD_MACH_O_INDIRECT_SYMBOL_LOCAL 0x80000000
#define BFD_MACH_O_INDIRECT_SYMBOL_ABS 0x40000000
typedef struct bfd_mach_o_thread_flavour
{
@ -452,6 +490,15 @@ typedef struct bfd_mach_o_prebound_dylib_command
}
bfd_mach_o_prebound_dylib_command;
typedef struct bfd_mach_o_uuid_command
{
unsigned long cmd; /* LC_PREBOUND_DYLIB. */
unsigned long cmdsize; /* Includes uuid. */
unsigned char uuid[16]; /* Uuid. */
asection *section;
}
bfd_mach_o_uuid_command;
typedef struct bfd_mach_o_load_command
{
bfd_mach_o_load_command_type type;
@ -467,6 +514,7 @@ typedef struct bfd_mach_o_load_command
bfd_mach_o_dylib_command dylib;
bfd_mach_o_dylinker_command dylinker;
bfd_mach_o_prebound_dylib_command prebound_dylib;
bfd_mach_o_uuid_command uuid;
}
command;
}
@ -484,6 +532,8 @@ typedef struct mach_o_data_struct
}
mach_o_data_struct;
#define bfd_get_mach_o_data(abfd) ((abfd)->tdata.mach_o_data)
typedef struct mach_o_data_struct bfd_mach_o_data_struct;
bfd_boolean bfd_mach_o_valid (bfd *);