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author | Andrew Macleod <amacleod@cygnus.com> | 2000-06-26 16:15:07 -0400 |
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committer | Jason Merrill <jason@gcc.gnu.org> | 2000-06-26 16:15:07 -0400 |
commit | 7d9d8943c9a920f25b1b0319dc201de1a280c412 (patch) | |
tree | 71b921aa27ff78a41f60dae65d13fa8833d71768 /gcc/libgcc2.c | |
parent | 4540727afe11267220f725c694e04e01de19f9d0 (diff) | |
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dwarf2.h (enum dwarf_call_frame_info): Add DW_CFA_def_cfa_expression.
* 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.
From-SVN: r34717
Diffstat (limited to 'gcc/libgcc2.c')
-rw-r--r-- | gcc/libgcc2.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c index 06c6fdd..b40fb58 100644 --- a/gcc/libgcc2.c +++ b/gcc/libgcc2.c @@ -3711,6 +3711,9 @@ next_stack_level (void *pc, frame_state *udata, frame_state *caller_udata) caller_udata->cfa = get_reg (caller_udata->cfa_reg, udata, 0); else caller_udata->cfa = udata->cfa; + if (caller_udata->indirect) + caller_udata->cfa = *(word_type *)((unsigned char *)caller_udata->cfa + + caller_udata->base_offset); caller_udata->cfa += caller_udata->cfa_offset; return caller_udata; |