Commit Graph

106 Commits

Author SHA1 Message Date
Peter Schauer 0db3fe94c3 Add support for Irix 6.2 native O32 and N32 ABI.
* config.in, configure.in, configure:  Check for <objlist.h>.
	* configure.tgt:  Handle mips*-sgi-irix6* like irix5 for now.

	* cp-valprint.c (cp_print_value_fields):  Use SYMBOL_VALUE_ADDRESS
	instead of SYMBOL_BLOCK_VALUE to get the address of a static member.

	* dwarf2read.c:  Turn warnings and recoverable errors into complaints,
	add new complaints where appropriate.
	gcc -Wall cleanup.
	(struct line_head):  Change line_base from char to int to avoid
	problems with compilers whose plain char is represented by an
	unsigned char.
	(struct partial_die_info):  Add is_declaration field.
	(dwarf2_tmp_obstack):  New obstack for allocating temporary storage
	used during symbol reading.
	(cu_header_offset):  New variable for resolving relative reference
	dies.
	(optimized_out, basereg, islocal, frame_base_reg, frame_base_offset):
	New interface variables for decode_locdesc.
	(struct dwarf2_pinfo):  New structure for communication between
	psymtab and symtab reading, passed via pst->read_symtab_private.
	(dwarf2_has_info, dwarf2_build_psymtabs):  Accept objects files
	without line number sections.
	(dwarf2_build_psymtabs_hard):  Initialize temporary obstack
	for symbol reading.
	Allocate and initialize pst->read_symtab_private.
	Relocate pst->textlow and pst->texthigh with baseaddr.
	(scan_partial_symbols):  Do not add DW_AT_declaration symbols
	to the partial symbol table.
	Add file scope enumerator symbols to the partial symbol table.
	Fix typo in highpc computation.
	If we didn't find a lowpc, set it to highpc to avoid complaints
	from `maint check.
	(add_partial_symbol):  Relocate symbol values with baseaddr.
	Add static DW_TAG_subprogram and DW_TAG_variable symbols to the
	minimal symbol table.
        Obtain symbol values for DW_TAG_variable symbols from the location
	descriptor, skip symbols with missing location desciptors.
	Skip symbols for aggregate types without children.
	Handle enumerator symbols.
	(dwarf2_psymtab_to_symtab):  Issue symbol reading message if verbose.
	(psymtab_to_symtab_1):  Set local variables from
	pst->read_symtab_private, set cu_header_offset and baseaddr.
	Initialize temporary obstack for symbol reading, initialize
	buildsym and add a cleanup to really_free_pendings.
	Relocate highpc with baseaddr when calling end_symtab.
	If the compilation is from a C file generated by language
	preprocessors, do not set the symtab language if it was already
	deduced by start_subfile.
	Removed verbose sorting symbol table message.
	(process_die):  Handle DW_TAG_ptr_to_member_type and
	DW_TAG_reference_type.
	Use read_subroutine_type to get the function type for
	DW_TAG_subprogram before calling read_func_scope.
	(read_file_scope):  Initialize file name to <unknown>, start_subfile
	expects a non-NULL name.
	If we didn't find a lowpc, set it to highpc to avoid complaints
	from finish_symbol.
	Relocate lowpc and highpc with baseaddr.
	Get rid of Irix6.2 native cc compile machine prefix in comp_dir.
	Zero out ftypes for each new compilation unit (may be different
	language or different objfile).
	Accept compilation units without line number information, pass
	comp_dir to decode_lines.
	(read_func_scope):  Initialize function name to <unknown> to avoid
	core dumps when DW_AT_name is missing.
	Relocate lowpc and highpc with baseaddr.
	Handle DW_AT_frame_base, keep result for DW_OP_fbreg operations.
	Pass function type to new_symbol.
	(read_lexical_block_scope):  Relocate lowpc and highpc with baseaddr.
	(read_structure_scope):  Set TYPE_TAG_NAME, not TYPE_NAME.
	Handle DW_TAG_class_type.
	Copy fields to type_obstack, release temporary storage for fields.
	Don't add symbol if die is a stub die and has no children.
	Handle C++ static member fields.
	(read_enumeration):  Set TYPE_TAG_NAME, not TYPE_NAME.
	Copy fields to type_obstack, release temporary storage for fields.
	Let new_symbol handle the symbol creation for enumerators
	instead of handcrafting a symbol.
	Determine signedness of enum type from enumerators.
	(dwarf_read_array_type):  Handle variable length arrays.
	Use lookup_pointer_type instead of handcrafting a type.
	Create array type only if a DW_TAG_subrange_type was found.
	(read_tag_pointer_type, read_tag_reference_type):
	Use lookup_pointer_type and lookup_reference_type instead
	of handcrafting a type.
	(read_tag_ptr_to_member_type):  New function to handle
	DW_TAG_ptr_to_member_type.
	(read_subroutine_type):  Handle parameter dies.
	Use lookup_function_type instead of handcrafting a type.
	(read_typedef):  Allocate a TYPE_CODE_TYPEDEF type for the typedef.
	(read_base_type):  If the type has a name, use init_type to create
	a new type instead of second guessing a fundamental type.
	(read_comp_unit):  Reset die reference table before building
	a new one.
	(dwarf2_read_section):  Read section contents into psymbol_obstack.
	(dwarf2_read_abbrevs):  Handle unterminated abbreviations
	for a compile unit gracefully.
	(read_partial_die):  Zero partial die before reading its info.
	Handle DW_AT_declaration.
	Fix typo in handling of DW_FORM_block4.
	(read_full_die):  Fix typo in handling of DW_FORM_block4.
	(read_1_signed_byte, read_2_signed_bytes, read_4_signed_bytes):
	New routines to get signed values from a buffer.
	(read_n_bytes, read_string):  Allocate storage from the temporary
	obstack. If the host char size permits it, return pointer
	to buffer instead of allocating storage.
	(set_cu_language):  Handle DW_LANG_Mips_Assembler.
	(dwarf_attr):  Return NULL if reference die for DW_AT_specification
	or DW_AT_abstract_origin die is not found.
	(record_minimal_symbol):  Removed, replaced with a direct call to
	prim_record_minimal_symbol, it now handles saving the string itself.
	(convert_locdesc):  Removed, partial symtab reading now uses
	decode_locdesc.
	(dwarf_attr):  Use dwarf2_get_ref_die_offset to get the absolute
	offset for the die reference.
	(dwarf_decode_lines):  Complain if the line section info is missing.
	Use read_1_signed_byte to extract lh.line_base to avoid
        problems with compilers whose plain char is represented by an
        unsigned char.
	Add cleanups for allocated temporary storage.
	Start a subfile for the first file in the state machine.
	Fix off by one problem with dirs.dirs access.
	Use comp_dir when directory index is 0.
	Support multiple sequences (from Jason Merrill <jason@cygnus.com>).
	(dwarf2_start_subfile):  Try to keep line numbers from identical
	absolute and relative file names in a common subfile.
	(new_symbol):  Allocate symbol and symbol name on the symbol_obstack.
	Set SYMBOL_LINE from DW_AT_decl_line if present.
	Set SYMBOL_TYPE from passed type if not NULL.
	Change DW_TAG_variable symbol types with missing type entries
	to a sensible type.
	Handle optimized_out, offreg and islocal storage classes.
	Add external symbols with type information whose address isn't
	known as LOC_UNRESOLVED symbols.
	Synthesize typedefs for C++ classes, structs, unions and enumerations.
	Handle DW_TAG_enumerator symbols, complain for unrecognized
	symbol tags.
	(die_type):  A missing DW_AT_type represents a void type.
	Use dwarf2_get_ref_die_offset to get the absolute offset for
	the die reference.
	(die_containing_type):  New function to build type from
	DW_AT_containing_type attribut.
	(read_type_die):  Handle DW_TAG_ptr_to_member_type.
	Treat DW_TAG_subprogram like DW_TAG_subroutine_type.
	(dwarf_base_type):  Fix typo with creation of FT_UNSIGNED_SHORT
	fundamental type.
	(create_name):  Removed, symbol name allocation is now done
	in new_symbol.
	(dump_die):  Use print_address_numeric to print a CORE_ADDR.
	(dwarf2_empty_die_ref_table):  New function to clear the die
	reference table.
	(dwarf2_get_ref_die_offset):  New function to get the absolute
	die offset from a die reference attribute.
	(decode_locdesc):  Complete rewrite using a stack, code mostly
	borrowed from dwarfread.c:locval.
	(dwarf_alloc_type):  Removed, replaced by direct calls to alloc_type.
	(dwarf_alloc_block):  Allocate block on temporary obstack.

	* elfread.c (elf_symtab_read):  When handling Irix dynamic symbols,
	skip section name symbols and relocate all others.
	(elf_symfile_read):  Build dwarf2 psymtab even if offset is non-zero.

	* irix5-nat.c (fetch_core_registers):  Handle core_reg_sect
	from N32 executables. Call registers_fetched after extracting
	the registers.
	(obj_list_variant, struct link_map, LM_OFFSET, LM_ADDR):  New
	definitions to enable support of O32 and N32 format objlists.
	(struct so_list):  New members offset, so_name and lmstart to
	eliminate dependencies from the objlist format used.
	(solib_map_sections, symbol_add_stub, solib_add,
	info_sharedlibrary_command, solib_address, clear_solib):  Use
	so_name and LM_OFFSET.
	(first_link_map_member):  Rewrite to enable support of O32 and N32
	format objlists.
	(next_link_map_member, xfer_link_map_member):  New functions to
	support O32 and N32 format objlists.
	(find_solib):  Use first_link_map_member, next_link_map_member and
	xfer_link_map_member.
	(solib_create_inferior_hook):  Use TARGET_SIGNAL_* instead of
	host signal numbers.

	* mdebugread.c (parse_partial_symbols, handle_psymbol_enumerators):
	Pass CORE_ADDR variant to add_psymbol_to_list.

	* mips-tdep.c (heuristic_proc_desc):  Stop examining the prologue
	if we encounter a positive stack adjustment. Handle `move $30,$sp'.
	Handle `sd reg,offset($sp)' for 32 bit ABIs.

	* symmisc.c (dump_msymbols, print_partial_symbols):  Use
	print_address_numeric to print a SYMBOL_VALUE_ADDRESS.
	(dump_symtab):  Print compilation directory if it is not NULL.

	* valops.c (search_struct_field, value_struct_elt_for_reference):
	Use SYMBOL_VALUE_ADDRESS instead of SYMBOL_BLOCK_VALUE to get the
	address of a static member.
1996-12-01 08:33:39 +00:00
Jason Merrill e61a754e39 Sun Oct 6 22:43:06 1996 Jason Merrill <jason@yorick.cygnus.com>
* dwarf2read.c (read_tag_reference_type): New fn.
	(read_type_die): Call it.
	(dwarf_attr): Also look in the DIEs referred to by specification
 	or abstract_origin attributes.
1996-10-07 17:18:24 +00:00
Stu Grossman 8501c74270 * defs.h: Define CONST_PTR as blank if compiling with Microsoft
C, else it's `const'.
	* c-lang.c c-lang.h ch-lang.c f-lang.c language.c m2-lang.c
	scm-lang.c: Microsoft C can't hack const pointers.  Use CONST_PTR
	macro instead.
	* configure configure.in defs.h:  Use AC_C_CONST to figure out if
	the compiler supports const.  Gets rid of some cruft in defs.h.
	* dwarf2read.c:  <string.h> -> "gdb_string.h"
	* remote-sim.c:  Add prototypes.  Fix call to gdbsim_kill.
	* sparcl-tdep.c (download):  Add prototypes to write_routine and
	start_routine args.

	* mswin/gdbwin.c:  Don't include both varargs.h AND stdarg.h.  Get
	rid of varargs.h  Include string.h.
	* (gdbwin_update gdbwin_fputs regs_changed_f bpt_changed_f
	update):  Fix prototypes, fix calls.
	* (update):  Return value for catch_errors.
	* (run_execute_command togdb_command_from_tty togdb_command):
	Cleanup catching of errors from calls to execute_command.  Also,
	dup command string to avoid modifying const strings.
	* (togdb_breakinfo_i_init togdb_breakinfo_i_next):  Use 0 instead
	of NULL when see if b->address isn't set.
	* (bi_disable_bpt bi_enable_bpt bi_delete_all
	bi_delete_breakpoint):  Add arg to calls to update.
	* (gui_command):  Add prototype.
	* (mswin_query):  Fix prototype.
	* (_initialize_gdbwin):  Dup string to avoid modifying const.
	* (info_path togdb_get_info_path):  Remove const from decls cuz
	this can't be const (it points at malloc'ed memory).
	* (togdb_searchpath):  Remove const from path.  Dup string to
	avoid modifying const strings.
	* rindex -> strrchr.
	* (gdbwin_list_symbols):  Regexp param is const.
	* Fix lots of refs to psymtabs to deref correct pointers.
	* (togdb_set_breakpoint_sal):  Call set_breakpoint_sal with sal,
	not &sal.
	* mswin/gdbwin.h (togdb_searchpath togdb_get_info_path
	toget_set_info_path):  Fix prototypes to match reality.
	* mswin/gui.cpp:  Define _beginthreadex and _endthreadex routines
	with proper prototypes.
	* mswin/iface.cpp (gdbwin_fputs):  Define with correct number of args.
	* mswin/ser-win32s.c:  Fix defs of min and max.
	* mswin/serdll32.c (OpenComm16):  Make cbInQueue and cbOutQueue be
	USHORT.
	* (WriteComm16):  Change lpBug from LPVOID to LPCSTR.
	* mswin/serdll32.h:  Fix prototypes for OpenComm16 and WriteComm16.
1996-08-13 00:01:37 +00:00
Stu Grossman 9e77e83d30 * dwarf2read.c dwarfread.c exec.c infcmd.c infrun.c main.c
mdebugread.c os9kread.c source.c top.c utils.c:  Don't
	include param.h or sys/file.h (or unistd.h in some cases).
	* defs.h exec.c inflow.c remote-array.c remote-e7000.c
	sparcl-tdep.c terminal.h utils.c:  Replace all occurances of
	__WIN32__, WINGDB, WIN32, etc... with _WIN32.
	* main.c:  Remove #ifndef WINGDB around option processing.  Fix
	bug with passing argc==0 and argv==NULL to getopt.
	* (main) Remove calls to access() before source_command.  Let
	soure_command handle access errors.
	* maint.c (maintenance_dump_me):  #ifdef out for _WIN32.
	* symtab.c (operator_chars):  Make this global for wingdb.
	* top.c (disconnect):  #ifdef out for _WIN32.
	* (source_command):  If got an error and from_tty, then call print
	error, else just return quietly.
	* utils.c (fatal_dump_core):  Can't kill ourselves under windows.
	Just exit.
	* (pollquit notice_quit):  #ifdef out stuff that doesn't exist
	under windows.
1996-08-08 02:50:22 +00:00
Fred Fish 9422fadb91 * dwarf2read.c (struct filenames): Change internal "struct file"
to "struct fileinfo" to avoid conflict with "struct file" in
	<sys/file.h> on HPUX and Solaris.
1996-07-20 18:33:27 +00:00
Stan Shebs fcf0554956 * dwarf2read.c: New file, DWARF 2 reader originally contributed by
Brent Benson, with additions by Gary Funck and Jerry Kreuscher.
	* Makefile.in (COMMON_OBS): Add dwarf2read.o.
	(SFILES): Add dwarf2read.c.
	(dwarf2read.o): Add build rule.
	* symfile.h (dwarf2_has_info, dwarf2_build_psymtabs): Declare
	exported functions.
	* elfread.c (elf_symfile_read): Call them.
	(elf_symtab_read) [HARRIS_TARGET]: Skip some special symbols.
1996-07-19 21:16:13 +00:00