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Silence maybe-uninitialized warning in dwarf2read.c 

I upgraded to Fedora 30 recently.  It includes GCC 9, which gives a
warning for dwarf2read.c:

../../binutils-gdb/gdb/dwarf2read.c:16103:24: warning: ‘discr_offset’ may be used uninitialized in this function [-Wmaybe-uninitialized]

This patch fixes the problem by initializing discr_offset.
Tested by rebuilding.

gdb/ChangeLog
2019-12-04  Tom Tromey  <tromey@adacore.com>

	* dwarf2read.c (process_structure_scope): Initialize
	"discr_offset".

Change-Id: I76a6157921c9beacb641b8a41e10026006621b95
This commit is contained in:
Tom Tromey 2019-12-04 07:46:59 -07:00
parent c2512106f8
commit feee869bd8
2 changed files with 6 additions and 1 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2019-12-04 Tom Tromey <tromey@adacore.com>
* dwarf2read.c (process_structure_scope): Initialize
"discr_offset".
2019-12-04 Andrew Burgess <andrew.burgess@embecosm.com>
* mi/mi-symbol-cmds.c (mi_symbol_info): Take extra parameter, and

2
gdb/dwarf2read.c
View File

@ -16060,7 +16060,7 @@ process_structure_scope (struct die_info *die, struct dwarf2_cu *cu)
read the discriminant member, so we can record it later in the
discriminant_info. */
bool is_variant_part = TYPE_FLAG_DISCRIMINATED_UNION (type);
sect_offset discr_offset;
sect_offset discr_offset {};
bool has_template_parameters = false;
if (is_variant_part)