Konstantin Belousov 83aa9cc00c Add support for preinit, init and fini arrays. Some ABIs, in ... particular on ARM, do require working init arrays. Traditional FreeBSD crt1 calls _init and _fini of the binary, instead of allowing runtime linker to arrange the calls. This was probably done to have the same crt code serve both statically and dynamically linked binaries. Since ABI mandates that first is called preinit array functions, then init, and then init array functions, the init have to be called from rtld now. To provide binary compatibility to old FreeBSD crt1, which calls _init itself, rtld only calls intializers and finalizers for main binary if binary has a note indicating that new crt was used for linking. Add parsing of ELF notes to rtld, and cache p_osrel value since we parsed it anyway. The patch is inspired by init_array support for DragonflyBSD, written by John Marino. Reviewed by: kan Tested by: andrew (arm, previous version), flo (sparc64, previous version) MFC after: 3 weeks		2012-03-11 20:03:09 +00:00
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amd64	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
arm	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
i386	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
ia64	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
mips	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
powerpc	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
powerpc64	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
sparc64	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
debug.c	Rtld links with the specially built pic static libc library to get some	2011-08-24 20:05:13 +00:00
debug.h
libmap.c	Cosmetic nit:	2012-03-06 09:34:30 +00:00
libmap.h
Makefile	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
malloc.c	Rtld links with the specially built pic static libc library to get some	2011-08-24 20:05:13 +00:00
map_object.c	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
rtld_lock.c	Rtld links with the specially built pic static libc library to get some	2011-08-24 20:05:13 +00:00
rtld_lock.h	Implement support for ELF filters in rtld. Both normal and auxillary	2010-12-25 08:51:20 +00:00
rtld_printf.c	Remove the use of toupper() from rtld_printf.c. Use of the libc function	2012-03-09 16:21:40 +00:00
rtld_printf.h	Rtld links with the specially built pic static libc library to get some	2011-08-24 20:05:13 +00:00
rtld_tls.h
rtld.1	Implement support for ELF filters in rtld. Both normal and auxillary	2010-12-25 08:51:20 +00:00
rtld.c	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
rtld.h	Add support for preinit, init and fini arrays. Some ABIs, in	2012-03-11 20:03:09 +00:00
Symbol.map	Implement fdlopen(3), an rtld interface to load shared object by file	2012-01-07 10:33:01 +00:00
xmalloc.c	Rtld links with the specially built pic static libc library to get some	2011-08-24 20:05:13 +00:00