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| author | Mark Wielaard <mark@klomp.org> | 2018-11-23 20:50:51 +0100 |
|---|---|---|
| committer | Mark Wielaard <mark@klomp.org> | 2018-11-23 21:06:30 +0100 |
| commit | ffbe89d87918559ee38c65be16d39b42608735e8 (patch) | |
| tree | 598794005c060a60da62799eb65fba13b503077b /libdw/dwarf_getattrs.c | |
| parent | 628b4a93c6863b9982d817db6acaacbc4e116453 (diff) | |
| download | elfutils-ffbe89d87918559ee38c65be16d39b42608735e8.tar.gz | |
libdw: Enable building with -Og.
When building with -Og gcc is unable to see that __libdw_dieabbrev ()
will initialize what the second argument points to when no error occurs
as called by dwarf_child and dwarf_getattrs. Causing an possibly
uninitialized error. Just initialize readp/die_addr to NULL, which is
the value we would return if an error occurs anyway.
https://sourceware.org/bugzilla/show_bug.cgi?id=23914
Signed-off-by: Mark Wielaard <mark@klomp.org>
Diffstat (limited to 'libdw/dwarf_getattrs.c')
| -rw-r--r-- | libdw/dwarf_getattrs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libdw/dwarf_getattrs.c b/libdw/dwarf_getattrs.c index 50faf988..4ac16b1a 100644 --- a/libdw/dwarf_getattrs.c +++ b/libdw/dwarf_getattrs.c @@ -44,7 +44,7 @@ dwarf_getattrs (Dwarf_Die *die, int (*callback) (Dwarf_Attribute *, void *), if (unlikely (offset == 1)) return 1; - const unsigned char *die_addr; + const unsigned char *die_addr = NULL; /* Find the abbreviation entry. */ Dwarf_Abbrev *abbrevp = __libdw_dieabbrev (die, &die_addr); |