egcs/gcc ChangeLog dwarf2.h dwarf2out.c frame. ...

[jason@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	egcs
Changes by:	jason@sourceware.cygnus.com	00/06/26 13:15:07

Modified files:
	gcc            : ChangeLog dwarf2.h dwarf2out.c frame.h 
	                 frame-dwarf2.c libgcc2.c 

Log message:
	* dwarf2.h (enum dwarf_call_frame_info): Add
	DW_CFA_def_cfa_expression.
	* dwarf2out.c (union dw_cfi_oprnd_struct): Add a pointer to a
	dw_loc_descr_struct entry.
	(struct cfa_loc): New structure to track a CFA location.
	(lookup_cfa): Take a cfa_loc parameter instead of a reg and an offset.
	(lookup_cfa_1): Take a cfa_loc parameter instead of a reg and an
	offset, plus handle DW_CFA_def_cfa_expression.
	(def_cfa_1): Use to be dwarf2out_def_cfa, only now it uses a
	cfa_loc record.
	(dwarf2out_def_cfa): Entry point maintained for compatability.
	(dwarf_cfi_name): Add DW_CFA_def_cfa_expression.
	(cfa_reg, cfa_offset): Replace with cfa_loc record 'cfa'.
	(cfa_store_reg, cfa_store_offset): Replace with cfa_loc 'cfa_store'.
	(initial_return_save, dwarf2out_stack_adjust): Use cfa.reg, not
	cfa_reg.
	(dwarf2out_frame_debug_expr): Use new cfa_loc records. Recognize rtl
	sequences for the new DW_CFA_def_cfa_expression record.
	(dwarf2out_frame_debug): Use new variables/fields.A
	(output_cfi): Handle DW_CFA_def_cfa_expression.
	(output_cfa_loc): New function to generate a CFI record for
	DW_CFA_def_cfa_expression.
	(get_cfa_from_loc_descr): New function to get a cfa_loc record from
	a dw_loc_descr sequeunce.
	(build_loc_descr): Build a dw_loc_descr from a cfa_loc record.
	(dwarf_stack_op_name, new_loc_descr, add_loc_descr, size_of_loc_descr,
	size_of_locs, output_loc_operands, output_loc_sequence): Move into
	unwind info section.
	* frame.h (frame_state): Add base_offset and indirect fields.
	* frame-dwarf2.c (decode_stack_op): New function to interpret a
	dw_loc_descr operation.
	(execute_cfa_insn): Add support for DW_CFA_def_cfa_expression.
	(struct frame_state): Add base offset and indirect fields.
	* libgcc2.c (next_stack_level): Support indirect loading for CFA.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.6968&r2=1.6969
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/dwarf2.h.diff?cvsroot=gcc&r1=1.12&r2=1.13
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/dwarf2out.c.diff?cvsroot=gcc&r1=1.178&r2=1.179
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/frame.h.diff?cvsroot=gcc&r1=1.13&r2=1.14
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/frame-dwarf2.c.diff?cvsroot=gcc&r1=1.1&r2=1.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/egcs/gcc/libgcc2.c.diff?cvsroot=gcc&r1=1.96&r2=1.97