DWARF reader: use size_t for DWARF expression length cont.
Commit Message
From: Mark Wielaard <mark@klomp.org>
A recent change broke 32-bit builds due to an implicit assumption that
size_t == uint64_t. Note that size_t is part of the elfutils
dwarf_getlocation* functions' types.
The previous fix omitted some instances of uint64_t. This commit
updates further functions to consistently use size_t for DWARF
expression lengths and indexes.
* src/abg-dwarf-reader.cc (eval_last_constant_dwarf_sub_expr):
Change expr_len argument type to size_t.
(op_pushes_constant_value): Update ops_len and index argument
types to size_t. Update next_index argument type to size_t&.
(op_pushes_non_constant_value): Likewise.
(op_is_arith_logic): Update expr_len and index argument types
to size_t. Update next_index argument type to size_t&.
(op_is_control_flow): Likewise.
Fixes: 16207c4af7bc ("Bug 28191 - Interpret DWARF 5 addrx locations")
Signed-off-by: Giuliano Procida <gprocida@google.com>
---
src/abg-dwarf-reader.cc | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
Comments
Giuliano Procida <gprocida@google.com> a écrit:
> From: Mark Wielaard <mark@klomp.org>
>
> A recent change broke 32-bit builds due to an implicit assumption that
> size_t == uint64_t. Note that size_t is part of the elfutils
> dwarf_getlocation* functions' types.
>
> The previous fix omitted some instances of uint64_t. This commit
> updates further functions to consistently use size_t for DWARF
> expression lengths and indexes.
>
> * src/abg-dwarf-reader.cc (eval_last_constant_dwarf_sub_expr):
> Change expr_len argument type to size_t.
> (op_pushes_constant_value): Update ops_len and index argument
> types to size_t. Update next_index argument type to size_t&.
> (op_pushes_non_constant_value): Likewise.
> (op_is_arith_logic): Update expr_len and index argument types
> to size_t. Update next_index argument type to size_t&.
> (op_is_control_flow): Likewise.
>
> Fixes: 16207c4af7bc ("Bug 28191 - Interpret DWARF 5 addrx locations")
> Signed-off-by: Giuliano Procida <gprocida@google.com>
Applied to master, thanks!
[...]
Cheers,
@@ -363,7 +363,7 @@ die_is_at_class_scope(const read_context& ctxt,
Dwarf_Die& class_scope_die);
static bool
eval_last_constant_dwarf_sub_expr(Dwarf_Op* expr,
- uint64_t expr_len,
+ size_t expr_len,
int64_t& value,
bool& is_tls_address);
@@ -7732,9 +7732,9 @@ die_location_expr(const Dwarf_Die* die,
/// value onto the DEVM stack, false otherwise.
static bool
op_pushes_constant_value(Dwarf_Op* ops,
- uint64_t ops_len,
- uint64_t index,
- uint64_t& next_index,
+ size_t ops_len,
+ size_t index,
+ size_t& next_index,
dwarf_expr_eval_context& ctxt)
{
ABG_ASSERT(index < ops_len);
@@ -7896,9 +7896,9 @@ op_pushes_constant_value(Dwarf_Op* ops,
/// non-constant value onto the DEVM stack, false otherwise.
static bool
op_pushes_non_constant_value(Dwarf_Op* ops,
- uint64_t ops_len,
- uint64_t index,
- uint64_t& next_index,
+ size_t ops_len,
+ size_t index,
+ size_t& next_index,
dwarf_expr_eval_context& ctxt)
{
ABG_ASSERT(index < ops_len);
@@ -8146,9 +8146,9 @@ op_manipulates_stack(Dwarf_Op* expr,
/// arithmetic or logic operation.
static bool
op_is_arith_logic(Dwarf_Op* expr,
- uint64_t expr_len,
- uint64_t index,
- uint64_t& next_index,
+ size_t expr_len,
+ size_t index,
+ size_t& next_index,
dwarf_expr_eval_context& ctxt)
{
ABG_ASSERT(index < expr_len);
@@ -8279,9 +8279,9 @@ op_is_arith_logic(Dwarf_Op* expr,
/// control flow operation, false otherwise.
static bool
op_is_control_flow(Dwarf_Op* expr,
- uint64_t expr_len,
- uint64_t index,
- uint64_t& next_index,
+ size_t expr_len,
+ size_t index,
+ size_t& next_index,
dwarf_expr_eval_context& ctxt)
{
ABG_ASSERT(index < expr_len);