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Fix array subranges (wrongly) having the same lower bound

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In some case, some array subranges would all have the same lower
bound.

Fixed thus.

	* src/abg-dwarf-reader.cc (build_subranges_from_array_type_die):
	Consider the 'lower_bound' parameter as the default lower bound
	for each sub-ranges.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
This commit is contained in:
Dodji Seketeli 2017-05-04 16:08:52 +02:00
parent 9fa58eca69
commit 7ee98c29f4
1 changed files with 5 additions and 3 deletions
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8
src/abg-dwarf-reader.cc
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@ -11859,17 +11859,18 @@ build_function_type(read_context& ctxt,
/// @param die the DIE of tag DW_TAG_array_type which contains
/// children DIEs that represent the sub-ranges.
///
/// @param lower_bound the lower bound to consider given our context.
/// @param default_lower_bound the default lower bound to consider
/// given our context.
///
/// @param subranges out parameter. This is set to the sub-ranges
/// that are built from @p die.
static void
build_subranges_from_array_type_die(Dwarf_Die* die,
uint64_t lower_bound,
uint64_t default_lower_bound,
array_type_def::subranges_type& subranges)
{
Dwarf_Die child;
uint64_t upper_bound = 0;
uint64_t upper_bound = 0, lower_bound = 0;
uint64_t count = 0;
if (dwarf_child(die, &child) == 0)
@ -11879,6 +11880,7 @@ build_subranges_from_array_type_die(Dwarf_Die* die,
int child_tag = dwarf_tag(&child);
if (child_tag == DW_TAG_subrange_type)
{
lower_bound = default_lower_bound;
// The DWARF 4 specifications says, in [5.11 Subrange
// Type Entries]:
//