* 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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34717 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 3 insertions, 1 deletions

diff --git a/gcc/frame.h b/gcc/frame.h
index 85c5e436d5b..52908f11b32 100644
--- a/gcc/frame.h
+++ b/gcc/frame.h
@@ -1,6 +1,6 @@
 /* Header file for unwinding stack frames for exception handling.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    Contributed by Jason Merrill <jason@cygnus.com>.
 
 This file is part of GNU CC.
@@ -30,11 +30,13 @@ typedef struct frame_state
   void *cfa;
   void *eh_ptr;
   long cfa_offset;
+  long base_offset;
   long args_size;
   long reg_or_offset[DWARF_FRAME_REGISTERS+1];
   unsigned short cfa_reg;
   unsigned short retaddr_column;
   char saved[DWARF_FRAME_REGISTERS+1];
+  char indirect;
 } frame_state;
 
 /* Values for 'saved' above.  */