From: Zoran Zaric <zoran.zaric@amd.com>
To: <gdb-patches@sourceware.org>
Subject: [PATCH v3 22/28] Remove DWARF expression composition check
Date: Thu, 14 Oct 2021 10:32:29 +0100 [thread overview]
Message-ID: <20211014093235.69756-23-zoran.zaric@amd.com> (raw)
In-Reply-To: <20211014093235.69756-1-zoran.zaric@amd.com>
From: Zoran Zaric <Zoran.Zaric@amd.com>
The dwarf_expr_require_composition function reports an error if the
last operation is not a leaf node of the DWARF expression. This was
previously used to prevent location description operations to be used
freely in the DWARF expression.
With the new approach, all operations are treated the same and
everything is composable, so there is no need for the previous
restrictions in the expression evaluator.
gdb/ChangeLog:
* dwarf2/expr.c (dwarf_expr_context::execute_stack_op): Remove
the use of dwarf_expr_require_composition.
---
gdb/dwarf2/expr.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/gdb/dwarf2/expr.c b/gdb/dwarf2/expr.c
index 602a5186cfa..20fb0e66c97 100644
--- a/gdb/dwarf2/expr.c
+++ b/gdb/dwarf2/expr.c
@@ -3282,7 +3282,6 @@ dwarf_expr_context::execute_stack_op (const gdb_byte *op_ptr,
else
result = op - DW_OP_reg0;
- dwarf_expr_require_composition (op_ptr, op_end, "DW_OP_reg");
push (make_unique<dwarf_register> (arch, result));
break;
}
@@ -3298,8 +3297,6 @@ dwarf_expr_context::execute_stack_op (const gdb_byte *op_ptr,
(arch, gdb::array_view<const gdb_byte> (op_ptr, len),
BFD_ENDIAN_UNKNOWN));
op_ptr += len;
- dwarf_expr_require_composition (op_ptr, op_end,
- "DW_OP_implicit_value");
break;
}
@@ -3311,9 +3308,6 @@ dwarf_expr_context::execute_stack_op (const gdb_byte *op_ptr,
push (make_unique<dwarf_implicit>
(arch, value->contents (),
type_byte_order (value->type ())));
-
- dwarf_expr_require_composition (op_ptr, op_end,
- "DW_OP_stack_value");
break;
}
@@ -3338,8 +3332,6 @@ dwarf_expr_context::execute_stack_op (const gdb_byte *op_ptr,
this->m_per_cu,
this->m_addr_size,
die_offset, len));
- dwarf_expr_require_composition (op_ptr, op_end,
- "DW_OP_implicit_pointer");
break;
}
--
2.17.1
next prev parent reply other threads:[~2021-10-14 9:33 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-14 9:32 [PATCH v3 00/28] Allow location description on the DWARF stack Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 01/28] Add new register access interface to expr.c Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 02/28] Add new memory " Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 03/28] Add new classes that model DWARF stack element Zoran Zaric
2021-10-21 23:43 ` Lancelot SIX
2021-10-22 16:38 ` Zoran Zaric
2021-10-22 21:34 ` Lancelot SIX
2021-10-14 9:32 ` [PATCH v3 04/28] Add to_location method to DWARF entry classes Zoran Zaric
2021-10-22 21:21 ` Lancelot SIX
2021-10-25 21:23 ` Simon Marchi
2021-11-01 16:01 ` Zoran Zaric
2021-11-01 20:36 ` Simon Marchi
2021-11-01 16:00 ` Zoran Zaric
2021-11-01 17:48 ` Lancelot SIX
2021-10-14 9:32 ` [PATCH v3 05/28] Add to_value " Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 06/28] Add read method to location description classes Zoran Zaric
2021-10-25 18:33 ` Lancelot SIX
2021-10-25 21:37 ` Simon Marchi
2021-11-02 14:26 ` Zoran Zaric
2021-11-03 19:03 ` Simon Marchi
2021-11-05 11:58 ` Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 07/28] Add write " Zoran Zaric
2021-10-25 20:21 ` Lancelot SIX
2021-11-03 10:27 ` Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 08/28] Add deref " Zoran Zaric
2021-10-25 22:31 ` Lancelot SIX
2021-11-03 10:51 ` Zoran Zaric
2021-11-03 17:37 ` Simon Marchi
2021-11-05 11:55 ` Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 09/28] Add read_from_gdb_value method to dwarf_location Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 10/28] Add write_to_gdb_value " Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 11/28] Add is_implicit_ptr_at " Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 12/28] Add indirect_implicit_ptr to dwarf_location class Zoran Zaric
2021-10-26 20:52 ` Lancelot SIX
2021-11-03 15:11 ` Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 13/28] Add is_optimized_out " Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 14/28] Add new computed struct value callback interface Zoran Zaric
2021-10-26 22:50 ` Lancelot SIX
2021-11-04 11:32 ` Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 15/28] Add to_gdb_value method to DWARF entry class Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 16/28] Change DWARF stack to use new dwarf_entry classes Zoran Zaric
2021-10-31 17:58 ` Lancelot SIX
2021-11-04 12:43 ` Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 17/28] Remove old computed struct value callbacks Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 18/28] Comments cleanup between expr.h and expr.c Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 19/28] Remove dwarf_expr_context from expr.h interface Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 20/28] Move read_addr_from_reg function to frame.c Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 21/28] Add frame info check to DW_OP_reg operations Zoran Zaric
2021-10-14 9:32 ` Zoran Zaric [this message]
2021-10-14 9:32 ` [PATCH v3 23/28] Add support for any location description in CFI Zoran Zaric
2021-10-31 22:58 ` Lancelot SIX
2021-11-04 15:09 ` Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 24/28] Add DWARF operations for byte and bit offset Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 25/28] Add support for DW_OP_LLVM_undefined operation Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 26/28] Add support for nested composite locations Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 27/28] Add DW_OP_LLVM_extend DWARF operation Zoran Zaric
2021-11-01 21:48 ` Lancelot SIX
2021-11-04 16:26 ` Zoran Zaric
2021-10-14 9:32 ` [PATCH v3 28/28] Add DW_OP_LLVM_select_bit_piece " Zoran Zaric
2021-11-01 22:25 ` Lancelot SIX
2021-11-04 16:39 ` Zoran Zaric
2021-11-05 11:54 ` [PATCH v3 00/28] Allow location description on the DWARF stack Zaric, Zoran (Zare)
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