for mips64 to build this with MLIBDIR set to o32
- make mips64 ldd call elf32_compat_ldd as well
- make mips64 elf64 set MLIBDIR to 64
- don't need ld.elf_so's Makefile.ld32 files anymore (they are going away
soon anyway)
tested on amd64 and sparc64, and an earlier version tested on mips64.
- open() and close() the file in the main loop
- pass the fd down into the handlers
- use _rtld_error() in ELFNAME(ldd)
this fixes PR#40543 and also makes error messages look better.
cases, since we never did 64 bit a.out. now ldd on 32 bit a.out
at least tries to work, but fails (on sparc or sparc64, no idea yet
for x86) the same way that all dynamic a.out binaries fail.
binaries for the ELF version.)
- convert a.out, elf32 and elf64 support into convience libraries and
link them right ones in. if elf_ldd() fails on 64 bit platforms,
try elf32_ldd() before aout_ldd().
now ldd on 64 bit platforms works for 32 bit binaries, aka PR#40199,
and it seems that all the issues from README are gone too.
First, parse arguments correctly so -f isn't taken as a file name. For ELF
don't do anything yet, but for a.out compat, pass formats along when
exec'ing binary.
Previously dlsym resolved to the version in crt0.o or libc which would
mean that the caller's shared object couldn't be determined correctly
using __builtin_return_address(0).
Mainly from FreeBSD, but adapted by me. Benefits of this solutions are:
- backward comptibility maintained
- existing broken binaries are fixed with a new ld.elf_so
- __mainprog_obj can be removed from crt0.o
- we do the same thing as FreeBSD
Fixes PR 22067.
OKed by Jason and Christos.
This is the case only with a.out programs, and the manual page has been
changed to reflect that in the BUGS section. Since most our architectures
have been converted to elf, this is not an issue anymore.
