Details
capsule_shim_dlopen ()
return capsule_shim_dlopen (cap Param1,
filename Param2,
flag Param3);
Returns : |
A handle as if for `dlopen`
An implementation of dlopen suitable to be called from inside a
namespace. Load file into cap namespace.
If cap has a non-trivial prefix, load file and its recursive
dependencies from cap prefix instead of from the root filesystem.
This helper function exists because dlopen() cannot safely be called
by a DSO opened into a private namespace. It takes file and flag
arguments cf dlopen() and a cap handle,
and performs a safe dlmopen() call instead.
Typically this function is used to implement a safe wrapper for dlopen()
which is assigned to the int_dlopen member of the capsule_metadata.
This * replaces calls to dlopen() by all DSOs in the capsule,
allowing libraries which use dlopen() to work inside the capsule.
Limitations: RTLD_GLOBAL is not supported in flag. This is a glibc
limitation in the dlmopen() implementation. |
capsule_shim_realloc ()
return capsule_shim_realloc (cap Param1,
ptr Param2,
size Param3);
