[Qemu-devel] [PATCH v2 0/4] initialize progname with error_set_progname()

[Hitoshi Mitake]

In the context of some subcommands of QEMU, error_get_progname() can
be used for obtaining argv[0]. The function is useful for the commands
because it is possible to detect a name of executable file and switch
behavior based on the function like busybox. e.g. block drivers can
switch behavior based on the name (qemu itself, qemu-img, or qemu-io).

But calling error_get_progname() in some commands causes segmentation
fault because initialization, calling error_set_progname(), isn't
done. This patchset adds the initialization to the commands which
lacks it but linked to util/qemu-error.o (one exception is bsd-user, because I
don't have an environment which can build and test it).

Currently, the missing call of error_set_progname() doesn't cause any
problems because the changed commands don't use error_get_progname(). This
patchset is a proactive action (but sheepdog driver will use it soon).

v2:
 - pass argv[0] directly to error_set_progname() without calling basename
 - add initialization to commands other than qemu-io

The thread of v1 can be found here:
http://lists.gnu.org/archive/html/qemu-devel/2014-08/msg01502.html

Hitoshi Mitake (4):
  qemu-io: initialize progname with error_set_progname()
  qemu-nbd: initialize progname with error_set_progname()
  qga: initialize progname with error_set_progname()
  linux-user: initialize progname with error_set_progname()

 linux-user/main.c | 2 ++
 qemu-io.c         | 1 +
 qemu-nbd.c        | 1 +
 qga/main.c        | 1 +
 4 files changed, 5 insertions(+)

-- 
1.9.1