diff options
| author | Mark Wielaard <mark@klomp.org> | 2017-11-15 12:13:38 +0100 |
|---|---|---|
| committer | Mark Wielaard <mark@klomp.org> | 2018-03-11 16:34:02 +0100 |
| commit | 86fbef9bcadb98272e247a005fdc8d7fd0701179 (patch) | |
| tree | 713bf5f761e9436e5c790fbad1c9f6c57ae73eeb /libdw/dwarf_getlocation.c | |
| parent | 06263dda990be6778a4beb33481cfd39ce60c623 (diff) | |
libdw: Add new DWARF5 Dwarf expression operations.
DW_OP_implicit_pointer, DW_OP_entry_value, DW_OP_const_type,
DW_OP_regval_type, DW_OP_deref_type, DW_OP_xderef_type,
DW_OP_convert and OP_reinterpret are implemented like their
pre-DWARF5 GNU variants.
DW_OP_xderef_type is implemented as a (non-CU relative) variant of
DW_OP_deref_type.
DW_OP_addrx and DW_OP_constx are recognized but not interpreted yet.
Signed-off-by: Mark Wielaard <mark@klomp.org>
Diffstat (limited to 'libdw/dwarf_getlocation.c')
| -rw-r--r-- | libdw/dwarf_getlocation.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libdw/dwarf_getlocation.c b/libdw/dwarf_getlocation.c index 86a9ae7f..0fcf9502 100644 --- a/libdw/dwarf_getlocation.c +++ b/libdw/dwarf_getlocation.c @@ -1,5 +1,5 @@ /* Return location expression list. - Copyright (C) 2000-2010, 2013-2015 Red Hat, Inc. + Copyright (C) 2000-2010, 2013-2015, 2017 Red Hat, Inc. This file is part of elfutils. Written by Ulrich Drepper <drepper@redhat.com>, 2000. @@ -452,8 +452,12 @@ __libdw_intern_expression (Dwarf *dbg, bool other_byte_order, case DW_OP_plus_uconst: case DW_OP_regx: case DW_OP_piece: + case DW_OP_convert: case DW_OP_GNU_convert: + case DW_OP_reinterpret: case DW_OP_GNU_reinterpret: + case DW_OP_addrx: + case DW_OP_constx: get_uleb128 (newloc->number, data, end_data); break; @@ -471,6 +475,7 @@ __libdw_intern_expression (Dwarf *dbg, bool other_byte_order, break; case DW_OP_bit_piece: + case DW_OP_regval_type: case DW_OP_GNU_regval_type: get_uleb128 (newloc->number, data, end_data); if (unlikely (data >= end_data)) @@ -479,6 +484,7 @@ __libdw_intern_expression (Dwarf *dbg, bool other_byte_order, break; case DW_OP_implicit_value: + case DW_OP_entry_value: case DW_OP_GNU_entry_value: /* This cannot be used in a CFI expression. */ if (unlikely (dbg == NULL)) @@ -492,6 +498,7 @@ __libdw_intern_expression (Dwarf *dbg, bool other_byte_order, data += newloc->number; /* Skip the block. */ break; + case DW_OP_implicit_pointer: case DW_OP_GNU_implicit_pointer: /* DW_FORM_ref_addr, depends on offset size of CU. */ if (dbg == NULL || __libdw_read_offset_inc (dbg, sec_index, &data, @@ -504,13 +511,16 @@ __libdw_intern_expression (Dwarf *dbg, bool other_byte_order, get_uleb128 (newloc->number2, data, end_data); /* Byte offset. */ break; + case DW_OP_deref_type: case DW_OP_GNU_deref_type: + case DW_OP_xderef_type: if (unlikely (data + 1 >= end_data)) goto invalid; newloc->number = *data++; get_uleb128 (newloc->number2, data, end_data); break; + case DW_OP_const_type: case DW_OP_GNU_const_type: { size_t size; |