On Wed, 17 Aug 2016, Mark Kettenis wrote:
...
> Functions listed by DT_PREINIT_ARRAY get run immediately after ld.so has
> finished loading and relocating all shared objects. This happens only
> for the main executable.
The _dl_call_init() invocation in dlopen() needs to change too, or
dlopen() will call preinit functions in the requested object, no?
> There is a functional change here. Our current ld.so doesn't run
> DT_INIT and DT_FINI for the main executable. The ELF standard is a bit
> ambiguous about this, but Linux does run tose for the main executable.
> And Solaris allegedly does as well. So my diff changes that.
ld.so doesn't run them because __start() in csu does! Note that csu needs
to run them for static executables, and we use the same crt0.o for both
static and dynamic executables. I think you're double executing them with
this.
(There are _some_ regress tests for this, but we'll want to add more for
the {init,fini,preinit}array additions.)
Philip Guenther
