uClibc-alpine/ldso/libdl, branch master

libdl: fix dlclose handling of symbol scope

2012-01-24T00:21:18+00:00

Defer removal of the local scope of a dl-opened library after
all the destructors (of itself and related dependencies) are actually
get unloaded, otherwise any function registered via atexit()
won't be resolved.

Signed-off-by: Carmelo Amoroso 
Signed-off-by: Khem Raj 
Signed-off-by: Filippo Arcidiacono

mips/libdl: Apply relocations after appending the new scope

2012-01-24T00:10:21+00:00

Without this the relocations for the current shared object
are not resolved since the scope is not added to map yet

Signed-off-by: Khem Raj

libdl: rudimentary locking for dlopen/dlsym/dlclose

2011-12-22T09:35:35+00:00

This implements big-dlfcn lock to allow multithreaded usage of
dlopen/dlsym/dlclose. We should really clean up the dl code so
we can use more fine grained locking or even RCU where appropriate.
But at least we won't crash now.

Signed-off-by: Timo Teräs 
Signed-off-by: Bernhard Reutner-Fischer

ldso: use func rather than FUNCTION

2011-11-27T05:30:06+00:00

The former is part of a standard (C99) while the latter is not.

Signed-off-by: Mike Frysinger

libdl: fix size parameter when unmap library in dlclose

2011-11-23T15:12:09+00:00

Fix size parameter when unmap a library by means of dlclose, by
taking into account the p_vaddr of first PT_LOAD segment, so it works
also for prelinked shared objects.
Unmapping of dlopen shared libraries is broken since
94cc6edb78a12655c0602a246fa1cbdc8c6d0ad9

Signed-off-by: Filippo Arcidiacono 
Signed-off-by: Carmelo Amoroso

ldso: support RTLD_NOLOAD

2011-11-07T17:10:32+00:00

So application query if specified module is loaded or not with
dlopen.

Signed-off-by: Timo Teräs 
Signed-off-by: Bernhard Reutner-Fischer

ldso: let people disable to lookup into LD_LIBRARY_PATH

2011-10-25T10:28:51+00:00

On hardened system it could be useful to disable the use
of LD_LIBRARY_PATH.

Signed-off-by: Carmelo Amoroso

libdl: remove _dl_ldsopath from libdl.a

2011-10-19T14:30:57+00:00

Signed-off-by: Carmelo Amoroso

libdl: add option for controlling dl_cleanup

2011-07-25T07:09:03+00:00

When debugging memory leaks with Valgrind, it is required that
dynamically loaded shared objects are not unloaded when a process exits,
otherwise symbols from those files aren't correctly resolved in
allocation traces. This patch adds the LDSO_NO_CLEANUP configuration
option to control this behaviour.

Signed-off-by: Richard Braun 
Signed-off-by: Carmelo Amoroso

Merge remote-tracking branch 'origin/master' into prelink

2011-06-24T14:24:25+00:00

* origin/master: (61 commits)
  fts: fix warning due to old-style function definition
  ldso_tls: fix compiler warning due to missing cast
  resolv: fix bug in res_init with ipv6 nameservers
  config: Fix passing defconfig args
  buildsys: pt-initfini.s depends on uClibc_config.h
  libdl: search for ELF_RTYPE_CLASS_DLSYM in dlsym()
  resolv: try next server on SERVFAIL
  getaddrinfo: allow numeric service without any hints
  bump version to 0.9.33-git
  nptl/pthread: Correct path for machine specific pt-initfini.c
  ctor/dtor nptl: Fix init and fini function compilation
  Rules.mak: Rearrange appending UCLIBC_EXTRA_CFLAGS to CFLAGS
  ARM: remove EABI/OABI selection
  ARM: detect BX availibility at build time
  ARM: #include  where __USE_BX__ is used
  ARM: transform the EABI/OABI choice into a boolean
  ARM: remove sub-arch/variants selection from menuconfig
  ARM: introduce blind options to select & force THUMB mode
  ARM: reorder "Use BX" option
  Fix __libc_epoll_pwait compile failure on x86
  ...

Conflicts:
	ldso/libdl/libdl.c

Signed-off-by: Carmelo Amoroso