subspaces too when writing executables. Never request a negative
bss size. Fixes some problems with demand paged executables,
still having problems with pure executables and shared executables.
containing all the private section information which needs
to be copied from input section to output section during
objcopy or strip.
(som_section_data_struct): Remove several fields now in
som_copyable_section_data_struct. Make the space and
subspace dictionaries be pointers (to save space when
only reading objects).
* som.c (bfd_som_set_section_attributes): Now returns a boolean;
some references changed. Allocate a copyable data stucture if
none exists. Store info into the copyable data structure.
(bfd_som_set_subsection_attributes): Likewise.
(som_is_space, som_is_subspace, som_is_container): New functions.
Use these instead of directly accessing private data.
(som_prep_headers): Allocate space and subspace headers here.
Fill in some fields in the space/subspace headers from the
copyable data.
(som_bfd_copy_private_section_data): Only copy the stuff
that we really need to make objcopy and strip work. Allocate
the copy_data structure for the output bfd before copying.
bfd_zalloc for rawptr, because later on we may call free, not
bfd_release, on it.
* bfd.c (struct _bfd): Add cisco_core_struct to tdata union.
* libbfd.c (bfd_read, bfd_seek): Add comments regarding errors.
* cisco-core.c: New file.
* Makfile.in: Change accordingly.
* bfd-in2.h: Rebuilt.
info that must be preserved when running objcopy/strip.
(struct somdata): Add new "exec_data" field and accessor
macro. Add some comments on how the various fields are used.
(som_section_data_struct): Make is_space and is_subspace bitfields.
Delete unused subspace_index. All references now use the
target_index field within the section structure itself.
* som.c (make_unique_section): Delete unused declaration.
(som_bfd_copy_private_bfd_data): New function.
(som_object_setup): Allocate space for and save exec information
that needs to be copied during objcopy/strip.
(som_mkobject): Do not allocate space for a file header here.
It is not used when only reading SOM objects.
(som_prep_headers): Allocate space for and attach a file header
to the output bfd. For executables, use the saved system_id
value rather than trying to guess the right value. Do not abort
wwhen setting file_hdr->entry* for executables.
(som_begin_writing): For executables, set the exec_entry and
exec_flags fields.
(som_copy_private_backend_section_data): Always return a value.
* som.c (SOM_ALIGN): Define.
(som_begin_writing): If writing an executable, initialize all
fields in the exec header to zero. Update fields in the exec
header as sizes of loadable subspaces are computed. Carefully
preserve alignments when building executables. Actually write the
exec after all the fields are filled in.
names, but doesn't quite write compliant extended names yet.
* som.c (som_slurp_extended_name_table): Delete function. The
generic code will handle things correctly.
(som_slurp_armap): Seek to the beginning of the next member.
(normalize): New function.
(som_bfd_ar_write_symbol_stuff): Take the size of the extended
name table into account when computing the file offsets in the
SOM dictionary. Make sure to align to an even boundary.
(som_write_armap): Initialize the checksum to zero.
(ar_maxchars): Fix. Opps.
elf32-hppa.c, elf32-mips.c, linker.c, som.c, sunos.c: If malloc(0)
returns NULL, it is not an error. It's possible that some of
these checks are not necessary (because the size can never be
zero), but putting in the checks is the conservative thing to do
in light of the fact that some of these malloc calls replaced
unchecked alloca calls, in which a zero argument would work fine.
on either the lack of private data or the symbol flags. Do not
munge section symbol names anymore -- they no longer confuse GDB.
(som_begin_writing): Leave space for an exec header if writing
an executable.
(som_slurp_symbol_table): Recognize both forms of section symbol
names "L$0\002" and "$<FOO>$". Change the name of "L$0\002"
section symbols to be the name of the section they represent.
Debugging symbols begin with "L$0\001", not just "L$".
* bfd-in.h (JUMP_TABLE): Add new entries to the jump table
for bfd_copy_private_section_data, bfd_copy_private_bfd_data,
and bfd_is_local_label.
* targets.c: Add new entries to the bfd_target structure.
* bfd.c (bfd_copy_private_bfd_data): New definition.
* section.c (bfd_copy_private_section_data): New definition.
* syms.c (bfd_is_local_label): New definition.
* libbfd-in.h (bfd_generic_is_local_label): Declare.
* libbfd.c (bfd_generic_is_local_label): New function.
* *-core.c: Provide default definitions for new functions in
the target vector which all point to bfd_false.
* aout-target.h, coffcode.h, elf32-target.h elf64-target.h, ieee.c
libaout.h, libecoff.h, nlm-target.h, oasys.c, srec.c, tekhex.c
Default new vectors for copying private backend data to bfd_true.
Default new vector for determining if a symbol is a local label
to bfd_generic_is_local_label.
* som.c (som_bfd_copy_private_section_data): New function.
(som_bfd_is_local_label): New function.
(som_bfd_copy_private_bfd_data): For now default to bfd_true.
* elf32-hppa.c (hppa_elf_is_local_label): New function.
Replace DEFUN and DEFUN_VOID with K&R-style function definition.
Indent some of them to GNU standards.
* aout32.c, archures.c, core.c, cpu-h8300.c, cpu-i960.c,
cpu-m68k.c, cpu-m88k.c, cpu-mips.c, cpu-vax.c, ctor.c, demo64.c,
elf32-hppa.h, gen-aout.c, host-aout.c, init.c, libhppa.h,
libieee.h, liboasys.h, newsos3.c, som.h, stab-syms.c, sunos.c:
Update copyright years.
symbol for the *ABS* section is really a relocation involving
no symbol.
(som_slurp_symbol_table): Do not set BSF_GLOBAL or BSF_EXPORT for
undefined symbols. Correctly distinguish between debugger symbols
and section symbols.
HAS_RELOC based on the object's magic number.
(make_unique_section): Delete function. BFD and its users are
prepared to handle multiple sections with the same name.
(setup_sections): Allocate space on the BFD's obstack to hold
section names. Use bfd_make_setion_anyway rather than the
obsolete make_unique_section.
(som_prep_headers): Choose the correct SOM magic number based
on the BFD's flags.
(som_bfd_fill_in_ar_symbols): Return false, not NULL on error.
is always located at the start of the data section to allow
recovery of the dynamic info from a stripped executable.
* ecoff.c (ecoff_styp_to_sec_flags): Handle STYP_PDATA, STYP_XDATA
and STYP_COMMENT.
cruft (like the #pragma alloca for AIX).
In addition to that problem, the C alloca calls xmalloc, which
means checking for being out of memory can't work right. The
following changes remove all uses of alloca from BFD.
* hosts/solaris2.h: Remove alloca cruft.
* som.c: Replace alloca with a fixed size auto array.
* aoutx.h, elfcode.h, nlmcode.h, bout.c, coff-alpha.c, ecoff.c,
ecofflink.c, elf32-hppa.c, elf32-mips.c, linker.c, reloc.c, som.c,
sunos.c: Replace alloca with malloc and appropriate error checking and
freeing.
* linker.c: Replace alloca with obstack_alloc.
* libbfd.h: Rebuilt.
cruft (like the #pragma alloca for AIX).
In addition to that problem, the C alloca calls xmalloc, which
means checking for being out of memory can't work right. The
following changes remove all uses of alloca from BFD.
* hosts/solaris2.h: Remove alloca cruft.
* som.c: Replace alloca with a fixed size auto array.
* aoutx.h, elfcode.h, nlmcode.h, bout.c, coff-alpha.c, ecoff.c,
ecofflink.c, elf32-hppa.c, elf32-mips.c, linker.c, reloc.c, som.c:
Replace alloca with malloc and appropriate error checking and
freeing.
* linker.c: Replace alloca with obstack_alloc.
* libbfd.h: Rebuilt.
* trad-core.c (trad_unix_core_file_p): A non-zero, not zero,
return from bfd_seek indicates an error.
New macro TRAD_CORE_DSIZE_INCLUDES_TSIZE to replace
TRAD_CORE_STACK_OFFSET.
* hosts/symmetry.h: Define TRAD_CORE_DSIZE_INCLUDES_TSIZE and
TRAD_CORE_USER_OFFSET but not HOST_STACK_OFFSET.
field parameter.
(bfd_som_set_section_attributes): Use unsigned int rather than
unsigned char to avoid GNU-C extensions.
(bfd_som_attach_aux_hdr): Return a boolean to indicate success
or failure rather than aborting on failure.
* som.h (bfd_som_set_section_attributes): Fix prototype to match
som.c changes.
(bfd_som_attach_aux_hdr): Add prototype.
(hppa_som-gen_reloc_type): Likewise.
* elf32-hppa.c: Add a couple casts to make HP compiler happy.
(hppa_look_for_stubs_in_section): Do not return false on failure
until rest of code is ready to handle it. Abort for now.
