Florian Weimer e9fed2438a
linux: Require /dev/shm as the shared memory file system ...
Previously, glibc would pick an arbitrary tmpfs file system from
/proc/mounts if /dev/shm was not available. This could lead to
an unsuitable file system being picked for the backing storage for
shm_open, sem_open, and related functions.
This patch introduces a new function, __shm_get_name, which builds
the file name under the appropriate (now hard-coded) directory. It is
called from the various shm_* and sem_* function. Unlike the
SHM_GET_NAME macro it replaces, the callers handle the return values
and errno updates. shm-directory.c is moved directly into the posix
subdirectory because it can be implemented directly using POSIX
functionality. It resides in libc because it is needed by both
librt and nptl/htl.
In the sem_open implementation, tmpfname is initialized directly
from a string constant. This happens to remove one alloca call.
Checked on x86_64-linux-gnu.
2021-02-08 14:10:42 -03:00
2021-01-02 12:17:34 -08:00
2020-06-24 13:38:08 +02:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2020-11-15 13:16:03 +01:00
2020-01-04 19:37:53 +01:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
2021-01-02 12:17:34 -08:00
e9fed2438a