Zero supplied stat buffers in functions that pretend to stat

GDB has five places where it pretends to stat for bfd_openr_iovec.
Four of these only set the incoming buffer's st_size, leaving the
other fields unchanged, which is to say very likely populated with
random values from the stack.  remote_bfd_iovec_stat was fixed in
0a93529c56714b1da3d7106d3e0300764f8bb81c; this commit fixes the
other four.

gdb/ChangeLog:

	* jit.c (mem_bfd_iovec_stat): Zero supplied buffer.
	* minidebug.c (lzma_stat): Likewise.
	* solib-spu.c (spu_bfd_iovec_stat): Likewise.
	* spu-linux-nat.c (spu_bfd_iovec_stat): Likewise.

1 files changed, 1 insertions, 0 deletions

diff --git a/gdb/jit.c b/gdb/jit.c
index e872c8f..f977ea6 100644
--- a/gdb/jit.c
+++ b/gdb/jit.c
@@ -126,6 +126,7 @@ mem_bfd_iovec_stat (struct bfd *abfd, void *stream, struct stat *sb)
 {
   struct target_buffer *buffer = (struct target_buffer*) stream;
 
+  memset (sb, 0, sizeof (struct stat));
   sb->st_size = buffer->size;
   return 0;
 }