PR28391, strip/objcopy --preserve-dates *.a: cannot set time
After commit 985e0264516 copy_archive function began to pass invalid
values to the utimensat(2) function when it tries to preserve
timestamps in ar archives. This happens because the bfd_stat_arch_elt
implementation for ar archives fills only the st_mtim.tv_sec part of
the st_mtim timespec structure, but leaves the st_mtim.tv_nsec part
and the whole st_atim timespec untouched leaving them uninitialized
PR 28391
* ar.c (extract_file): Clear buf for preserve_dates.
* objcopy.c (copy_archive): Likewise.
diff --git a/binutils/ar.c b/binutils/ar.c
index 5d6976c..8885585 100644
--- a/binutils/ar.c
+++ b/binutils/ar.c
@@ -1180,6 +1180,9 @@
bfd_size_type size;
struct stat buf;
+ if (preserve_dates)
+ memset (&buf, 0, sizeof (buf));
+
if (bfd_stat_arch_elt (abfd, &buf) != 0)
/* xgettext:c-format */
fatal (_("internal stat error on %s"), bfd_get_filename (abfd));
diff --git a/binutils/objcopy.c b/binutils/objcopy.c
index a6c2e0d..fd7557f 100644
--- a/binutils/objcopy.c
+++ b/binutils/objcopy.c
@@ -3600,6 +3600,7 @@
if (preserve_dates)
{
+ memset (&buf, 0, sizeof (buf));
stat_status = bfd_stat_arch_elt (this_element, &buf);
if (stat_status != 0)
