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authorTristan Gingold <gingold@adacore.com>2011-12-14 10:30:09 +0000
committerTristan Gingold <gingold@adacore.com>2011-12-14 10:30:09 +0000
commita455111938d5abb9ed13004b040e831f836fdc23 (patch)
tree3270a4889e95c447ad07990bbe9930df36a82575 /bfd
parentd14c4eb72958ef9a46236ae8e2caea0388989a85 (diff)
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bfd/
2011-12-14 Iain Sandoe <iains@gcc.gnu.org> * mach-o-i386.c (text_section_names_xlat): New table. (data_section_names_xlat): Likewise. (import_section_names_xlat): Likewise. (mach_o_i386_segsec_names_xlat): Likewise. (bfd_mach_o_tgt_seg_table): Use new tables. * mach-o-x86-64.c (bfd_mach_o_tgt_seg_table): Set NULL. * mach-o.c (mach_o_section_name_xlat, mach_o_segment_name_xlat): Move to mach-o.h as typedefs. (text_section_names_xlat): Update for current GCC usage. (data_section_names_xlat): Likewise. (dwarf_section_names_xlat): Likewise. (objc_section_names_xlat): New table. (segsec_names_xlat): Add objc table. (bfd_mach_o_normalize_section_name): Replace with... (bfd_mach_o_section_data_for_mach_sect): New. (bfd_mach_o_section_data_for_bfd_name): New. (bfd_mach_o_section_data_for_bfd_name): Update to use additional data. (bfd_mach_o_convert_section_name_to_mach_o): Likewise. (bfd_mach_o_bfd_copy_private_section_data): Implement. (bfd_mach_o_write_symtab): Write a zero-length string as the first entry for compatibility with system tools. (bfd_mach_o_build_commands): Update section alignment info. (bfd_mach_o_new_section_hook): Use translation table data to define default section flags, type, attributes and alignment, when available. (bfd_mach_o_init_section_from_mach_o): Add TODO comment. (bfd_mach_o_section_type_name): Add 'symbol_stubs'. (bfd_mach_o_section_attribute_name): Add 'self_modifying_code'. (bfd_mach_o_get_section_type_from_name): Change "not-found" return value. (bfd_mach_o_tgt_seg_table): Set default NULL. * mach-o.h (bfd_mach_o_segment_command): Use define for name length. (bfd_mach_o_backend_data): Move until after contents are defined. (bfd_mach_o_normalize_section_name): Remove. (bfd_mach_o_convert_section_name_to_bfd): Declare. (mach_o_section_name_xlat): Declare. (mach_o_segment_name_xlat): Declare. (bfd_mach_o_section_data_for_mach_sect): Declare. (bfd_mach_o_section_data_for_bfd_name): Declare. include/ 2011-12-14 Iain Sandoe <iains@gcc.gnu.org> * mach-o/loader.h (bfd_mach_o_section_type): define BFD_MACH_O_S_ATTR_NONE to 0. gas/ 2011-12-14 Iain Sandoe <iains@gcc.gnu.org> * config/obj-macho.c: Add some more top-level comments. (collect_16char_name): New. (obj_mach_o_section): Amend to allow syntax compatible with existing system tools. Use section translation data when available. (obj_mach_o_segT_from_bfd_name): New. (known_sections): Update. (obj_mach_o_known_section): Use obj_mach_o_segT_from_bfd_name. (objc_sections): New. (obj_mach_o_objc_section): New. (debug_sections): New. (obj_mach_o_debug_section): New. (tgt_sections): New. (obj_mach_o_opt_tgt_section): New. (obj_mach_o_base_section): New. (obj_mach_o_common_parse): Update to create BSS on demand and to handle lcomm optional alignment param. (obj_mach_o_comm): Update parameter name. (obj_mach_o_placeholder): New. (mach_o_pseudo_table): Update for GCC section directives. * config/obj-macho.h (_OBJ_MACH_O_H): New. (USE_ALIGN_PTWO): Define. (S_SET_ALIGN) Define.
Diffstat (limited to 'bfd')
-rw-r--r--bfd/ChangeLog41
-rw-r--r--bfd/mach-o-i386.c55
-rw-r--r--bfd/mach-o-target.c3
-rw-r--r--bfd/mach-o-x86-64.c1
-rw-r--r--bfd/mach-o.c488
-rw-r--r--bfd/mach-o.h52
6 files changed, 498 insertions, 142 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index cf07be2..164f231 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,44 @@
+2011-12-14 Iain Sandoe <iains@gcc.gnu.org>
+
+ * mach-o-i386.c (text_section_names_xlat): New table.
+ (data_section_names_xlat): Likewise.
+ (import_section_names_xlat): Likewise.
+ (mach_o_i386_segsec_names_xlat): Likewise.
+ (bfd_mach_o_tgt_seg_table): Use new tables.
+ * mach-o-x86-64.c (bfd_mach_o_tgt_seg_table): Set NULL.
+ * mach-o.c (mach_o_section_name_xlat, mach_o_segment_name_xlat):
+ Move to mach-o.h as typedefs.
+ (text_section_names_xlat): Update for current GCC usage.
+ (data_section_names_xlat): Likewise.
+ (dwarf_section_names_xlat): Likewise.
+ (objc_section_names_xlat): New table.
+ (segsec_names_xlat): Add objc table.
+ (bfd_mach_o_normalize_section_name): Replace with...
+ (bfd_mach_o_section_data_for_mach_sect): New.
+ (bfd_mach_o_section_data_for_bfd_name): New.
+ (bfd_mach_o_section_data_for_bfd_name): Update to use additional data.
+ (bfd_mach_o_convert_section_name_to_mach_o): Likewise.
+ (bfd_mach_o_bfd_copy_private_section_data): Implement.
+ (bfd_mach_o_write_symtab): Write a zero-length string as the first entry
+ for compatibility with system tools.
+ (bfd_mach_o_build_commands): Update section alignment info.
+ (bfd_mach_o_new_section_hook): Use translation table data to define
+ default section flags, type, attributes and alignment, when available.
+ (bfd_mach_o_init_section_from_mach_o): Add TODO comment.
+ (bfd_mach_o_section_type_name): Add 'symbol_stubs'.
+ (bfd_mach_o_section_attribute_name): Add 'self_modifying_code'.
+ (bfd_mach_o_get_section_type_from_name): Change "not-found" return
+ value.
+ (bfd_mach_o_tgt_seg_table): Set default NULL.
+ * mach-o.h (bfd_mach_o_segment_command): Use define for name length.
+ (bfd_mach_o_backend_data): Move until after contents are defined.
+ (bfd_mach_o_normalize_section_name): Remove.
+ (bfd_mach_o_convert_section_name_to_bfd): Declare.
+ (mach_o_section_name_xlat): Declare.
+ (mach_o_segment_name_xlat): Declare.
+ (bfd_mach_o_section_data_for_mach_sect): Declare.
+ (bfd_mach_o_section_data_for_bfd_name): Declare.
+
2011-12-13 Shinichiro Hamaji <shinichiro.hamaji@gmail.com>
* dwarf2.c (bfd_dwarf2_cleanup_debug_info): Accept stash as an
diff --git a/bfd/mach-o-i386.c b/bfd/mach-o-i386.c
index 1191560..c5e3884 100644
--- a/bfd/mach-o-i386.c
+++ b/bfd/mach-o-i386.c
@@ -280,10 +280,65 @@ bfd_mach_o_i386_print_thread (bfd *abfd, bfd_mach_o_thread_flavour *thread,
return FALSE;
}
+static const mach_o_section_name_xlat text_section_names_xlat[] =
+ {
+ { ".symbol_stub", "__symbol_stub",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
+ BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS,
+ 0},
+ { ".picsymbol_stub", "__picsymbol_stub",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
+ BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS,
+ 0},
+ { NULL, NULL, 0, 0, 0, 0}
+ };
+
+static const mach_o_section_name_xlat data_section_names_xlat[] =
+ {
+ /* The first two are recognized by i386, but not emitted for x86 by
+ modern GCC. */
+ { ".non_lazy_symbol_pointer", "__nl_symbol_ptr",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".lazy_symbol_pointer", "__la_symbol_ptr",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".lazy_symbol_pointer2", "__la_sym_ptr2",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".lazy_symbol_pointer3", "__la_sym_ptr3",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { NULL, NULL, 0, 0, 0, 0}
+ };
+
+static const mach_o_section_name_xlat import_section_names_xlat[] =
+ {
+ { ".picsymbol_stub3", "__jump_table",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
+ BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
+ | BFD_MACH_O_S_SELF_MODIFYING_CODE,
+ 6},
+ { ".non_lazy_symbol_pointer_x86", "__pointers",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { NULL, NULL, 0, 0, 0, 0}
+ };
+
+const mach_o_segment_name_xlat mach_o_i386_segsec_names_xlat[] =
+ {
+ { "__TEXT", text_section_names_xlat },
+ { "__DATA", data_section_names_xlat },
+ { "__IMPORT", import_section_names_xlat },
+ { NULL, NULL }
+ };
+
#define bfd_mach_o_swap_reloc_in bfd_mach_o_i386_swap_reloc_in
#define bfd_mach_o_swap_reloc_out bfd_mach_o_i386_swap_reloc_out
#define bfd_mach_o_print_thread bfd_mach_o_i386_print_thread
+#define bfd_mach_o_tgt_seg_table mach_o_i386_segsec_names_xlat
+
#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_i386_bfd_reloc_type_lookup
#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_i386_bfd_reloc_name_lookup
diff --git a/bfd/mach-o-target.c b/bfd/mach-o-target.c
index d92c58b..4d5690e 100644
--- a/bfd/mach-o-target.c
+++ b/bfd/mach-o-target.c
@@ -95,7 +95,8 @@ static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
TARGET_ARCHITECTURE,
bfd_mach_o_swap_reloc_in,
bfd_mach_o_swap_reloc_out,
- bfd_mach_o_print_thread
+ bfd_mach_o_print_thread,
+ bfd_mach_o_tgt_seg_table
};
const bfd_target TARGET_NAME =
diff --git a/bfd/mach-o-x86-64.c b/bfd/mach-o-x86-64.c
index 2248d97..1bc3bf8 100644
--- a/bfd/mach-o-x86-64.c
+++ b/bfd/mach-o-x86-64.c
@@ -287,6 +287,7 @@ bfd_mach_o_x86_64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_x86_64_bfd_reloc_type_lookup
#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_x86_64_bfd_reloc_name_lookup
#define bfd_mach_o_print_thread NULL
+#define bfd_mach_o_tgt_seg_table NULL
#define TARGET_NAME mach_o_x86_64_vec
#define TARGET_STRING "mach-o-x86-64"
diff --git a/bfd/mach-o.c b/bfd/mach-o.c
index 54edd07..c768689 100644
--- a/bfd/mach-o.c
+++ b/bfd/mach-o.c
@@ -87,118 +87,312 @@ bfd_mach_o_wide_p (bfd *abfd)
names. Use of canonical names (such as .text or .debug_frame) is required
by gdb. */
-struct mach_o_section_name_xlat
-{
- const char *bfd_name;
- const char *mach_o_name;
- flagword flags;
-};
-
-static const struct mach_o_section_name_xlat dwarf_section_names_xlat[] =
+/* __TEXT Segment. */
+static const mach_o_section_name_xlat text_section_names_xlat[] =
{
- { ".debug_frame", "__debug_frame", SEC_DEBUGGING },
- { ".debug_info", "__debug_info", SEC_DEBUGGING },
- { ".debug_abbrev", "__debug_abbrev", SEC_DEBUGGING },
- { ".debug_aranges", "__debug_aranges", SEC_DEBUGGING },
- { ".debug_macinfo", "__debug_macinfo", SEC_DEBUGGING },
- { ".debug_line", "__debug_line", SEC_DEBUGGING },
- { ".debug_loc", "__debug_loc", SEC_DEBUGGING },
- { ".debug_pubnames", "__debug_pubnames", SEC_DEBUGGING },
- { ".debug_pubtypes", "__debug_pubtypes", SEC_DEBUGGING },
- { ".debug_str", "__debug_str", SEC_DEBUGGING },
- { ".debug_ranges", "__debug_ranges", SEC_DEBUGGING },
- { NULL, NULL, 0}
+ { ".text", "__text",
+ SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0},
+ { ".const", "__const",
+ SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".static_const", "__static_const",
+ SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".cstring", "__cstring",
+ SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS,
+ BFD_MACH_O_S_CSTRING_LITERALS,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".literal4", "__literal4",
+ SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".literal8", "__literal8",
+ SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS,
+ BFD_MACH_O_S_ATTR_NONE, 3},
+ { ".literal16", "__literal16",
+ SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS,
+ BFD_MACH_O_S_ATTR_NONE, 4},
+ { ".constructor", "__constructor",
+ SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".destructor", "__destructor",
+ SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".eh_frame", "__eh_frame",
+ SEC_READONLY | SEC_LOAD, BFD_MACH_O_S_COALESCED,
+ BFD_MACH_O_S_ATTR_LIVE_SUPPORT
+ | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
+ | BFD_MACH_O_S_ATTR_NO_TOC, 3},
+ { NULL, NULL, 0, 0, 0, 0}
};
-static const struct mach_o_section_name_xlat text_section_names_xlat[] =
+/* __DATA Segment. */
+static const mach_o_section_name_xlat data_section_names_xlat[] =
{
- { ".text", "__text", SEC_CODE | SEC_LOAD },
- { ".const", "__const", SEC_READONLY | SEC_DATA | SEC_LOAD },
- { ".cstring", "__cstring", SEC_READONLY | SEC_DATA | SEC_LOAD },
- { ".eh_frame", "__eh_frame", SEC_READONLY | SEC_LOAD },
- { NULL, NULL, 0}
+ { ".data", "__data",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".bss", "__bss",
+ SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".const_data", "__const",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".static_data", "__static_data",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".mod_init_func", "__mod_init_func",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".mod_term_func", "__mod_term_func",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".dyld", "__dyld",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 0},
+ { ".cfstring", "__cfstring",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { NULL, NULL, 0, 0, 0, 0}
};
-static const struct mach_o_section_name_xlat data_section_names_xlat[] =
+/* __DWARF Segment. */
+static const mach_o_section_name_xlat dwarf_section_names_xlat[] =
{
- { ".data", "__data", SEC_DATA | SEC_LOAD },
- { ".const_data", "__const", SEC_DATA | SEC_LOAD },
- { ".dyld", "__dyld", SEC_DATA | SEC_LOAD },
- { ".lazy_symbol_ptr", "__la_symbol_ptr", SEC_DATA | SEC_LOAD },
- { ".non_lazy_symbol_ptr", "__nl_symbol_ptr", SEC_DATA | SEC_LOAD },
- { ".bss", "__bss", SEC_NO_FLAGS },
- { NULL, NULL, 0}
+ { ".debug_frame", "__debug_frame",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_info", "__debug_info",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_abbrev", "__debug_abbrev",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_aranges", "__debug_aranges",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_macinfo", "__debug_macinfo",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_line", "__debug_line",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_loc", "__debug_loc",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_pubnames", "__debug_pubnames",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_pubtypes", "__debug_pubtypes",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_str", "__debug_str",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_ranges", "__debug_ranges",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { ".debug_macro", "__debug_macro",
+ SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_DEBUG, 0},
+ { NULL, NULL, 0, 0, 0, 0}
};
-struct mach_o_segment_name_xlat
-{
- /* Segment name. */
- const char *segname;
-
- /* List of known sections for the segment. */
- const struct mach_o_section_name_xlat *sections;
-};
-
-/* List of known segment names. */
+/* __OBJC Segment. */
+static const mach_o_section_name_xlat objc_section_names_xlat[] =
+ {
+ { ".objc_class", "__class",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_meta_class", "__meta_class",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_cat_cls_meth", "__cat_cls_meth",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_cat_inst_meth", "__cat_inst_meth",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_protocol", "__protocol",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_string_object", "__string_object",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_cls_meth", "__cls_meth",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_inst_meth", "__inst_meth",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_cls_refs", "__cls_refs",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_message_refs", "__message_refs",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_symbols", "__symbols",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_category", "__category",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_class_vars", "__class_vars",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_instance_vars", "__instance_vars",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_module_info", "__module_info",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_selector_strs", "__selector_strs",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_image_info", "__image_info",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc_selector_fixup", "__sel_fixup",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ /* Objc V1 */
+ { ".objc1_class_ext", "__class_ext",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc1_property_list", "__property",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { ".objc1_protocol_ext", "__protocol_ext",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
+ BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
+ { NULL, NULL, 0, 0, 0, 0}
+ };
-static const struct mach_o_segment_name_xlat segsec_names_xlat[] =
+static const mach_o_segment_name_xlat segsec_names_xlat[] =
{
{ "__TEXT", text_section_names_xlat },
{ "__DATA", data_section_names_xlat },
{ "__DWARF", dwarf_section_names_xlat },
+ { "__OBJC", objc_section_names_xlat },
{ NULL, NULL }
};
-/* Mach-O to bfd names. */
+/* For both cases bfd-name => mach-o name and vice versa, the specific target
+ is checked before the generic. This allows a target (e.g. ppc for cstring)
+ to override the generic definition with a more specific one. */
-void
-bfd_mach_o_normalize_section_name (const char *segname, const char *sectname,
- const char **name, flagword *flags)
+/* Fetch the translation from a Mach-O section designation (segment, section)
+ as a bfd short name, if one exists. Otherwise return NULL.
+
+ Allow the segment and section names to be unterminated 16 byte arrays. */
+
+const mach_o_section_name_xlat *
+bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname,
+ const char *sectname)
{
const struct mach_o_segment_name_xlat *seg;
+ const mach_o_section_name_xlat *sec;
+ bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
- *name = NULL;
- *flags = SEC_NO_FLAGS;
+ /* First try any target-specific translations defined... */
+ if (bed->segsec_names_xlat)
+ for (seg = bed->segsec_names_xlat; seg->segname; seg++)
+ if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
+ for (sec = seg->sections; sec->mach_o_name; sec++)
+ if (strncmp (sec->mach_o_name, sectname,
+ BFD_MACH_O_SECTNAME_SIZE) == 0)
+ return sec;
+ /* ... and then the Mach-O generic ones. */
for (seg = segsec_names_xlat; seg->segname; seg++)
- {
- if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
- {
- const struct mach_o_section_name_xlat *sec;
+ if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
+ for (sec = seg->sections; sec->mach_o_name; sec++)
+ if (strncmp (sec->mach_o_name, sectname,
+ BFD_MACH_O_SECTNAME_SIZE) == 0)
+ return sec;
- for (sec = seg->sections; sec->mach_o_name; sec++)
- {
- if (strncmp (sec->mach_o_name, sectname,
- BFD_MACH_O_SECTNAME_SIZE) == 0)
- {
- *name = sec->bfd_name;
- *flags = sec->flags;
- return;
- }
- }
- return;
- }
- }
+ return NULL;
}
-/* Convert Mach-O section name to BFD. Try to use standard names, otherwise
- forge a new name. SEGNAME and SECTNAME are 16 bytes strings. */
+/* If the bfd_name for this section is a 'canonical' form for which we
+ know the Mach-O data, return the segment name and the data for the
+ Mach-O equivalent. Otherwise return NULL. */
-static void
-bfd_mach_o_convert_section_name_to_bfd
- (bfd *abfd, const char *segname, const char *sectname,
- const char **name, flagword *flags)
+const mach_o_section_name_xlat *
+bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name,
+ const char **segname)
{
+ const struct mach_o_segment_name_xlat *seg;
+ const mach_o_section_name_xlat *sec;
+ bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
+ *segname = NULL;
+
+ if (bfd_name[0] != '.')
+ return NULL;
+
+ /* First try any target-specific translations defined... */
+ if (bed->segsec_names_xlat)
+ for (seg = bed->segsec_names_xlat; seg->segname; seg++)
+ for (sec = seg->sections; sec->bfd_name; sec++)
+ if (strcmp (bfd_name, sec->bfd_name) == 0)
+ {
+ *segname = seg->segname;
+ return sec;
+ }
+
+ /* ... and then the Mach-O generic ones. */
+ for (seg = segsec_names_xlat; seg->segname; seg++)
+ for (sec = seg->sections; sec->bfd_name; sec++)
+ if (strcmp (bfd_name, sec->bfd_name) == 0)
+ {
+ *segname = seg->segname;
+ return sec;
+ }
+
+ return NULL;
+}
+
+/* Convert Mach-O section name to BFD.
+
+ Try to use standard/canonical names, for which we have tables including
+ default flag settings - which are returned. Otherwise forge a new name
+ in the form "<segmentname>.<sectionname>" this will be prefixed with
+ LC_SEGMENT. if the segment name does not begin with an underscore.
+
+ SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
+ terminated if the name length is exactly 16 bytes - but must be if the name
+ length is less than 16 characters). */
+
+void
+bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname,
+ const char *secname, const char **name,
+ flagword *flags)
+{
+ const mach_o_section_name_xlat *xlat;
char *res;
unsigned int len;
const char *pfx = "";
- /* First search for a canonical name. */
- bfd_mach_o_normalize_section_name (segname, sectname, name, flags);
+ *name = NULL;
+ *flags = SEC_NO_FLAGS;
- /* Return now if found. */
- if (*name)
- return;
+ /* First search for a canonical name...
+ xlat will be non-null if there is an entry for segname, secname. */
+ xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname);
+ if (xlat)
+ {
+ len = strlen (xlat->bfd_name);
+ res = bfd_alloc (abfd, len+1);
+ if (res == NULL)
+ return;
+ memcpy (res, xlat->bfd_name, len+1);
+ *name = res;
+ *flags = xlat->bfd_flags;
+ return;
+ }
+
+ /* ... else we make up a bfd name from the segment concatenated with the
+ section. */
len = 16 + 1 + 16 + 1;
@@ -215,43 +409,46 @@ bfd_mach_o_convert_section_name_to_bfd
res = bfd_alloc (abfd, len);
if (res == NULL)
return;
- snprintf (res, len, "%s%.16s.%.16s", pfx, segname, sectname);
+ snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname);
*name = res;
- *flags = SEC_NO_FLAGS;
}
-/* Convert a bfd section name to a Mach-O segment + section name. */
+/* Convert a bfd section name to a Mach-O segment + section name.
-static void
+ If the name is a canonical one for which we have a Darwin match
+ return the translation table - which contains defaults for flags,
+ type, attribute and default alignment data.
+
+ Otherwise, expand the bfd_name (assumed to be in the form
+ "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
+
+static const mach_o_section_name_xlat *
bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
asection *sect,
bfd_mach_o_section *section)
{
- const struct mach_o_segment_name_xlat *seg;
+ const mach_o_section_name_xlat *xlat;
const char *name = bfd_get_section_name (abfd, sect);
+ const char *segname;
const char *dot;
unsigned int len;
unsigned int seglen;
unsigned int seclen;
- /* List of well known names. They all start with a dot. */
- if (name[0] == '.')
- for (seg = segsec_names_xlat; seg->segname; seg++)
- {
- const struct mach_o_section_name_xlat *sec;
-
- for (sec = seg->sections; sec->mach_o_name; sec++)
- {
- if (strcmp (sec->bfd_name, name) == 0)
- {
- strcpy (section->segname, seg->segname);
- strcpy (section->sectname, sec->mach_o_name);
- return;
- }
- }
- }
+ memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1);
+ memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1);
+
+ /* See if is a canonical name ... */
+ xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname);
+ if (xlat)
+ {
+ strcpy (section->segname, segname);
+ strcpy (section->sectname, xlat->mach_o_name);
+ return xlat;
+ }
- /* Strip LC_SEGMENT. prefix. */
+ /* .. else we convert our constructed one back to Mach-O.
+ Strip LC_SEGMENT. prefix, if present. */
if (strncmp (name, "LC_SEGMENT.", 11) == 0)
name += 11;
@@ -271,16 +468,23 @@ bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
section->segname[seglen] = 0;
memcpy (section->sectname, dot + 1, seclen);
section->sectname[seclen] = 0;
- return;
+ return NULL;
}
}
+ /* The segment and section names are both missing - don't make them
+ into dots. */
+ if (dot && dot == name)
+ return NULL;
+
+ /* Just duplicate the name into both segment and section. */
if (len > 16)
len = 16;
memcpy (section->segname, name, len);
section->segname[len] = 0;
memcpy (section->sectname, name, len);
section->sectname[len] = 0;
+ return NULL;
}
/* Return the size of an entry for section SEC.
@@ -337,10 +541,20 @@ bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
bfd_boolean
bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
- asection *isection ATTRIBUTE_UNUSED,
+ asection *isection,
bfd *obfd ATTRIBUTE_UNUSED,
- asection *osection ATTRIBUTE_UNUSED)
-{
+ asection *osection)
+{
+ if (osection->used_by_bfd == NULL)
+ osection->used_by_bfd = isection->used_by_bfd;
+ else
+ if (isection->used_by_bfd != NULL)
+ memcpy (osection->used_by_bfd, isection->used_by_bfd,
+ sizeof (bfd_mach_o_section));
+
+ if (osection->used_by_bfd != NULL)
+ ((bfd_mach_o_section *)osection->used_by_bfd)->bfdsection = osection;
+
return TRUE;
}
@@ -1099,6 +1313,12 @@ bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
if (strtab == NULL)
return FALSE;
+ if (sym->nsyms > 0)
+ /* Although we don't strictly need to do this, for compatibility with
+ Darwin system tools, actually output an empty string for the index
+ 0 entry. */
+ _bfd_stringtab_add (strtab, "", TRUE, FALSE);
+
for (i = 0; i < sym->nsyms; i++)
{
bfd_size_type str_index;
@@ -1415,22 +1635,22 @@ bfd_mach_o_build_commands (bfd *abfd)
seg->sect_head = NULL;
seg->sect_tail = NULL;
- /* Create Mach-O sections. */
+ /* Create Mach-O sections.
+ Section type, attribute and align should have been set when the
+ section was created - either read in or specified. */
target_index = 0;
for (sec = abfd->sections; sec; sec = sec->next)
{
+ unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
bfd_mach_o_append_section_to_segment (seg, sec);
- if (msect->flags == 0)
- {
- /* We suppose it hasn't been set. Convert from BFD flags. */
- bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
- }
msect->addr = bfd_get_section_vma (abfd, sec);
msect->size = bfd_get_section_size (sec);
- msect->align = bfd_get_section_alignment (abfd, sec);
+ /* Use the largest alignment set, in case it was bumped after the
+ section was created. */
+ msect->align = msect->align > bfd_align ? msect->align : bfd_align;
if (msect->size != 0)
{
@@ -1572,11 +1792,13 @@ bfd_boolean
bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
{
bfd_mach_o_section *s;
+ unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
s = bfd_mach_o_get_mach_o_section (sec);
if (s == NULL)
{
flagword bfd_flags;
+ static const mach_o_section_name_xlat * xlat;
s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
if (s == NULL)
@@ -1584,21 +1806,24 @@ bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
sec->used_by_bfd = s;
s->bfdsection = sec;
- /* Create default name. */
- bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
-
- /* Create default flags. */
- bfd_flags = bfd_get_section_flags (abfd, sec);
- if ((bfd_flags & SEC_CODE) == SEC_CODE)
- s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
- | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
- | BFD_MACH_O_S_REGULAR;
- else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
- s->flags = BFD_MACH_O_S_ZEROFILL;
- else if (bfd_flags & SEC_DEBUGGING)
- s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
+ /* Create the Darwin seg/sect name pair from the bfd name.
+ If this is a canonical name for which a specific paiting exists
+ there will also be defined flags, type, attribute and alignment
+ values. */
+ xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
+ if (xlat != NULL)
+ {
+ s->flags = xlat->macho_sectype | xlat->macho_secattr;
+ s->align = xlat->sectalign > bfdalign ? xlat->sectalign
+ : bfdalign;
+ bfd_set_section_alignment (abfd, sec, s->align);
+ bfd_flags = bfd_get_section_flags (abfd, sec);
+ if (bfd_flags == SEC_NO_FLAGS)
+ bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
+ }
else
- s->flags = BFD_MACH_O_S_REGULAR;
+ /* Create default flags. */
+ bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
}
return _bfd_generic_new_section_hook (abfd, sec);
@@ -1614,6 +1839,9 @@ bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
flags = bfd_get_section_flags (abfd, sec);
section = bfd_mach_o_get_mach_o_section (sec);
+ /* TODO: see if we should use the xlat system for doing this by
+ preference and fall back to this for unknown sections. */
+
if (flags == SEC_NO_FLAGS)
{
/* Try to guess flags. */
@@ -3323,6 +3551,7 @@ const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
{ "interposing", BFD_MACH_O_S_INTERPOSING},
{ "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
{ "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
+ { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
{ "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
{ NULL, 0}
};
@@ -3339,10 +3568,11 @@ const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
{ "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
{ "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
{ "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
+ { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
{ NULL, 0}
};
-/* Get the section type from NAME. Return -1 if NAME is unknown. */
+/* Get the section type from NAME. Return 256 if NAME is unknown. */
unsigned int
bfd_mach_o_get_section_type_from_name (const char *name)
@@ -3352,7 +3582,8 @@ bfd_mach_o_get_section_type_from_name (const char *name)
for (x = bfd_mach_o_section_type_name; x->name; x++)
if (strcmp (x->name, name) == 0)
return x->val;
- return (unsigned int)-1;
+ /* Maximum section ID = 0xff. */
+ return 256;
}
/* Get the section attribute from NAME. Return -1 if NAME is unknown. */
@@ -3518,6 +3749,7 @@ bfd_mach_o_close_and_cleanup (bfd *abfd)
#define bfd_mach_o_swap_reloc_in NULL
#define bfd_mach_o_swap_reloc_out NULL
#define bfd_mach_o_print_thread NULL
+#define bfd_mach_o_tgt_seg_table NULL
#define TARGET_NAME mach_o_be_vec
#define TARGET_STRING "mach-o-be"
diff --git a/bfd/mach-o.h b/bfd/mach-o.h
index 686bb90..0c6f4fd 100644
--- a/bfd/mach-o.h
+++ b/bfd/mach-o.h
@@ -1,5 +1,5 @@
/* Mach-O support for BFD.
- Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009
+ Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009, 2011
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
@@ -70,7 +70,7 @@ bfd_mach_o_section;
typedef struct bfd_mach_o_segment_command
{
- char segname[16 + 1];
+ char segname[BFD_MACH_O_SEGNAME_SIZE + 1];
bfd_vma vmaddr;
bfd_vma vmsize;
bfd_vma fileoff;
@@ -530,15 +530,6 @@ typedef struct bfd_mach_o_xlat_name
bfd_mach_o_xlat_name;
/* Target specific routines. */
-typedef struct bfd_mach_o_backend_data
-{
- enum bfd_architecture arch;
- bfd_boolean (*_bfd_mach_o_swap_reloc_in)(arelent *, bfd_mach_o_reloc_info *);
- bfd_boolean (*_bfd_mach_o_swap_reloc_out)(arelent *, bfd_mach_o_reloc_info *);
- bfd_boolean (*_bfd_mach_o_print_thread)(bfd *, bfd_mach_o_thread_flavour *,
- void *, char *);
-}
-bfd_mach_o_backend_data;
#define bfd_mach_o_get_data(abfd) ((abfd)->tdata.mach_o_data)
#define bfd_mach_o_get_backend_data(abfd) \
@@ -591,8 +582,9 @@ unsigned int bfd_mach_o_version (bfd *);
unsigned int bfd_mach_o_get_section_type_from_name (const char *);
unsigned int bfd_mach_o_get_section_attribute_from_name (const char *);
-void bfd_mach_o_normalize_section_name (const char *, const char *,
- const char **, flagword *);
+
+void bfd_mach_o_convert_section_name_to_bfd (bfd *, const char *, const char *,
+ const char **, flagword *);
bfd_boolean bfd_mach_o_find_nearest_line (bfd *, asection *, asymbol **,
bfd_vma, const char **,
const char **, unsigned int *);
@@ -608,4 +600,38 @@ extern const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[];
extern const bfd_target mach_o_fat_vec;
+/* Interfaces between BFD names and Mach-O names. */
+
+typedef struct mach_o_section_name_xlat
+{
+ const char *bfd_name;
+ const char *mach_o_name;
+ flagword bfd_flags;
+ unsigned int macho_sectype;
+ unsigned int macho_secattr;
+ unsigned int sectalign;
+} mach_o_section_name_xlat;
+
+typedef struct mach_o_segment_name_xlat
+{
+ const char *segname;
+ const mach_o_section_name_xlat *sections;
+} mach_o_segment_name_xlat;
+
+const mach_o_section_name_xlat *
+bfd_mach_o_section_data_for_mach_sect (bfd *, const char *, const char *);
+const mach_o_section_name_xlat *
+bfd_mach_o_section_data_for_bfd_name (bfd *, const char *, const char **);
+
+typedef struct bfd_mach_o_backend_data
+{
+ enum bfd_architecture arch;
+ bfd_boolean (*_bfd_mach_o_swap_reloc_in)(arelent *, bfd_mach_o_reloc_info *);
+ bfd_boolean (*_bfd_mach_o_swap_reloc_out)(arelent *, bfd_mach_o_reloc_info *);
+ bfd_boolean (*_bfd_mach_o_print_thread)(bfd *, bfd_mach_o_thread_flavour *,
+ void *, char *);
+ const mach_o_segment_name_xlat *segsec_names_xlat;
+}
+bfd_mach_o_backend_data;
+
#endif /* _BFD_MACH_O_H_ */