split out locking and parameter checking.
(_dl_close): Call _dl_close_worker after locking and checking.
* elf/dl-open.c (_dl_open): Call _dl_close_worker instead of
_dl_close.
we are sure we do not need it anymore for _dl_close. Also move
* elf/dl-lookup.c (_dl_debug_bindings): Remove unused symbol_scope
argument.
(_dl_lookup_symbol_x): Adjust caller.
* sysdeps/generic/ldsodefs.h (struct link_namespaces): Remove
_ns_global_scope.
* elf/rtld.c (dl_main): Don't initialize _ns_global_scope.
* elf/dl-libc.c: Revert l_scope name changes.
* elf/dl-load.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/rtld.c: Likewise.
* elf/dl-close.c (_dl_close): Likewise.
* elf/dl-open.c (dl_open_worker): Likewise. If not SINGLE_THREAD_P,
always use __rtld_mrlock_{change,done}. Always free old scope list
here if not l_scope_mem.
* elf/dl-runtime.c (_dl_fixup, _dl_profile_fixup): Revert l_scope name
change. Never free scope list here. Just __rtld_mrlock_lock before
the lookup and __rtld_mrlock_unlock it after the lookup.
* elf/dl-sym.c: Likewise.
* include/link.h (struct r_scoperec): Remove.
(struct link_map): Replace l_scoperec with l_scope, l_scoperec_mem
with l_scope_mem and l_scoperec_lock with l_scope_lock.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
* sunrpc/xdr_mem.c (xdrmem_setpos): Don't compare addresses
as signed longs, check for x_base + pos overflow.
* sunrpc/Makefile (tests): Add tst-xdrmem2.
* sunrpc/tst-xdrmem2.c: New test.
2006-10-18 Ulrich Drepper <drepper@redhat.com>
* elf/dl-lookup.c (_dl_lookup_symbol_x): Add warning to
_dl_lookup_symbol_x code.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
* elf/dl-runtime.c: Include sysdep-cancel.h.
(_dl_fixup, _dl_profile_fixup): Use __rtld_mrlock_* and
scoperec->nusers only if !SINGLE_THREAD_P. Use atomic_*
instead of catomic_* macros.
* elf/dl-sym.c: Include sysdep-cancel.h.
(do_sym): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
* elf/dl-close.c: Include sysdep-cancel.h.
(_dl_close): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
* elf/dl-open.c: Include sysdep-cancel.h.
(dl_open_worker): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
[BZ #3313]
* malloc/malloc.c (malloc_consolidate): Set maxfb to address of last
fastbin rather than end of fastbin array.
2006-10-18 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/i486/bits/atomic.h (catomic_decrement): Use correct
body macro.
* sysdeps/x86_64/bits/atomic.h
(__arch_c_compare_and_exchange_val_64_acq): Add missing casts.
(catomic_decrement): Use correct body macro.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
* include/atomic.h: Add a unique prefix to all local variables
in macros.
* csu/tst-atomic.c (do_test): Test also catomic_* macros.
* include/link.h: Include <rtld-lowlevel.h>. Define struct
Implement reference counting of scope records.
* elf/dl-close.c (_dl_close): Remove all scopes from removed objects
from the list in objects which remain. Always allocate new scope
record.
* elf/dl-open.c (dl_open_worker): When growing array for scopes,
don't resize, allocate a new one.
* elf/dl-runtime.c: Update reference counters before using a scope
array.
* elf/dl-sym.c: Likewise.
* elf/dl-libc.c: Adjust for l_scope name change.
* elf/dl-load.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/rtld.c: Likewise.
* include/link.h: Inlcude <rtld-lowlevel.h>. Define struct
r_scoperec. Replace r_scope with pointer to r_scoperec structure.
Add l_scoperec_lock.
* sysdeps/generic/ldsodefs.h: Include <rtld-lowlevel.h>.
* sysdeps/generic/rtld-lowlevel.h: New file.
* include/atomic.h: Rename atomic_and to atomic_and_val and
atomic_or to atomic_or_val. Define new macros atomic_and and
atomic_or which do not return values.
* sysdeps/x86_64/bits/atomic.h: Define atomic_and and atomic_or.
Various cleanups.
* sysdeps/i386/i486/bits/atomic.h: Likewise.
sure no reference to the unloaded map's search list remains in the
dependency's scope.
2006-09-16 Jakub Jelinek <jakub@redhat.com>
* elf/Makefile: Add rules to build and run unload7 test.
* elf/unload7.c: New test.
* elf/unload7mod1.c: New file.
* elf/unload7mod2.c: New file.
(_dl_close): If called recursively, just remember GC needs to be rerun
and decrease l_direct_opencount. Avoid GC if l_direct_opencount
decreased to 1. Rerun GC at the end if any destructor unloaded some
additional libraries.
* elf/Makefile: Add rules to build and run unload6 test.
* elf/unload6.c: New test.
* elf/unload6mod1.c: New file.
* elf/unload6mod2.c: New file.
* elf/unload6mod3.c: New file.
* malloc/hooks.c (mem2chunk_check): Add magic_p argument, set *magic_p
if magic_p is not NULL.
(top_check): Invoke MALLOC_FAILURE_ACTION if MORECORE failed.
(malloc_check): Fail if sz == -1.
(free_check): Adjust mem2chunk_check caller.
(realloc_check): Likewise. Fail if bytes == -1. If bytes == 0 and
oldmem != NULL, call free_check and return NULL. If reallocating
and returning NULL, invert magic byte again to make oldmem valid
region for further checking.
(memalign_check): Fail if bytes == -1.
* malloc/Makefile: Add rules to build and run tst-mcheck.
* malloc/tst-mcheck.c: New test.
function _dl_sort_fini.
(_dl_sort_fini): New function.
* sysdeps/generic/ldsodefs.h: Declare _dl_sort_fini.
* elf/dl-close.c (_dl_close): Call _dl_sort_fini before running
destructors to call them in the right order.
Change type of l_idx to int.
* elf/dl-close.c: Basically rewrite. Do not use l_opencount to
determine whether a DSO has to be unloaded. Instead compute this
in this function.
* elf/dl-deps.c: No need to manipulate l_opencount anymore.
* elf/dl-lookup.c: Likewise.
* elf/rtld.c: Likewise
* elf/dl-open.c: Likewise. Use l_init_called to determine whether
object was just loaded.
* elf/dl-fini.c: Bump l_direct_opencount instead of l_opencount.
* elf/dl-load.c (_dl_map_object_from_fd): Do not recognize DSO which
is about to be unloaded as a match.
(_dl_map_object): Likewise.
* elf/do-lookup.h (do_lookup_x): Do not look into DSO which is about
to be unloaded.
* elf/circleload1.c: Don't use l_opencount anymore.
* elf/neededtest.c: Likewise.
* elf/neededtest2.c: Likewise.
* elf/neededtest3.c: Likewise.
* elf/neededtest4.c: Likewise.
* elf/unload.c: Likewise.
* elf/unload2.c: Likewise.
* elf/loadtest.c: Likewise.
* elf/rtld.c: Preloading errors are now never fatal.
2005-03-08 Jakub Jelinek <jakub@redhat.com>
* elf/Makefile: Add rules to build and run unload5 test.
* elf/unload5.c: New file.
2005-03-08 Jakub Jelinek <jakub@redhat.com>
* elf/Makefile: Add rules to build and run unload4 test.
* elf/unload4.c: New file.
* elf/unload4mod1.c: New file.
* elf/unload4mod2.c: New file.
* elf/unload4mod3.c: New file.
* elf/unload4mod4.c: New file.
2005-03-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #776]
* iconv/iconvconfig.c: Fix comment for the output file.
(write_output): Clear padding in header.
2005-03-03 Ulrich Drepper <drepper@redhat.com>
* elf/dl-close.c (_dl_close): Don't try to set up new searchpath if the
loader is closed. Fixes unload3.
* elf/tst-global1.c: New file.
* elf/Makefile (tests): Add tst-global1.
2005-03-03 Jakub Jelinek <jakub@redhat.com>
* elf/Makefile: Add rules to build and run unload3 test.
* elf/unload3.c: New test.
* elf/unload3mod1.c: New file.
* elf/unload3mod2.c: New file.
* elf/unload3mod3.c: New file.
* elf/unload3mod4.c: New file.
2005-01-09 Ulrich Drepper <drepper@redhat.com>
* elf/dl-debug.c (_dl_debug_initialize): Take extra parameter and
use it to select the r_debug structure for that namespace.
* elf/dl-close.c (_dl_close): Adjust call to _dl_debug_initialize.
* elf/dl-load.c (_dl_map_object_from_fd): Likewise.
* elf/dl-open.c (_dl_open): Likewise.
* elf/rtld.c (dl_main): Likewise.
* sysdeps/generic/ldsodefs.h (struct link_namespaces): Add _ns_debug
member.
(_dl_debug_initialize): Add new parameter in declaration.
* elf/dl-close.c (_dl_close): Make sure auditing callbacks are not
called for the auditing objects themselves.
* elf/dl-load.c (_dl_map_object_from_fd): Likewise.
2004-10-14 Jakub Jelinek <jakub@redhat.com>
* elf/rtld.c (_dl_start): Fix one last dl_loaded.
* elf/dl-load.c (_dl_map_object_from_fd): Avoid definition of
label when it is not needed.
* elf/dl-close.c (_dl_close): Typo: & -> &&.
Update.
Add support for namespaces in the dynamic linker.
* dlfcn/Makefile (libdl-routines): Add dlmopen.
* dlfcn/Versions [libdl, GLIBC_2.3.4]: Add dlmopen.
* dlfcn/dlfcn.h: Define Lmid_t, LM_ID_BASE, and LM_ID_NEWLM.
Declare dlmopen. Document RTLD_DI_LMID.
* dlfcn/dlinfo.c: Handle RTLD_DI_LMID.
* dlfcn/dlmopen.c: New file.
* dlfcn/dlopen.c: Pass new parameter to _dl_open.
* dlfcn/dlopenold.c: Likewise.
* elf/dl-addr.c: Adjust for removal of GL(dl_loaded).
* elf/dl-caller.c: Likewise.
* elf/dl-close.c: Likewise.
* elf/dl-conflict.c: Likewise.
* elf/dl-debug.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-sym.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* elf/rtld.c: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise.
* elf/dl-depsc: Likewise. Add new parameter to _dl_map_object.
* elf/dl-fini.c: Call destructors in all namespaces.
* elf/dl-iteratephdr.c: Compute total nloaded. Adjust for removal of
GL(dl_loaded).
* elf/dl-libc.c: Pass new parameter to _dl_open. Adjust for removal
of GL(dl_loaded).
* elf/dl-load.c (_dl_map_object_from_fd): Don't load ld.so a second
time. Reuse the one from the main namespace in all others.
Pass new parameter to _dl_new_object.
Adjust for removal of GL(dl_loaded).
* elf/dl-object.c: Take new parameter. Use it to initialize l_ns.
Adjust for removal of GL(dl_loaded).
* elf/dl-open.c (_dl_open): Take new parameter.
Adjust for removal of GL(dl_loaded).
* elf/dl-support.c: Replace global _dl_loaded etc variables with
_dl_ns variable.
* include/dlfcn.h: Adjust prototype of _dl_open.
Define __LM_ID_CALLER.
* include/link.h: Add l_real, l_ns, and l_direct_opencount elements.
* sysdeps/generic/dl-tls.c: Bump TLS_STATIC_SURPLUS. Since libc is
using TLS we need memory appropriate to the number of namespaces.
* sysdeps/generic/ldsodefs.h (struct rtld_global): Replace _dl_loaded,
_dl_nloaded, _dl_global_scope, _dl_main_searchlist, and
_dl_global_scope_alloc with _dl_ns element. Define DL_NNS.
Adjust prototypes of _dl_map_object and member in rtld_global_ro.
* malloc/malloc.c: Include <dlfcn.h>.
* malloc/arena.c (ptmalloc_init): If libc is not in primary namespace,
never use brk.
* elf/Makefile: Add rules to build and run tst-dlmopen1 and
tst-dlmopen2.
* elf/tst-dlmopen1.c: New file.
* elf/tst-dlmopen1mod.c: New file.
* elf/tst-dlmopen2.c: New file.
* elf/dl-close.c: Improve reference counting by tracking direct loads.
* elf/dl-lookup.c (add_dependency): Likewise.
* elf/dl-open.c (dl_open_worker): Likewise.
* elf/rtld.c (dl_main): Likewise.
2004-09-09 GOTO Masanori <gotom@debian.or.jp>
[BZ #77]
* elf/dl-close.c: Count down l_opencount to check not only for
l_reldeps, but also l_initfini.
2004-10-13 Ulrich Drepper <drepper@redhat.com>
2003-01-11 Jim Meyering <jim@meyering.net>
* io/ftw.c [HAVE_CONFIG_H]: Include <config.h>.
[HAVE_SYS_PARAM_H || _LIBC]: Guard inclusion of <sys/param.h>.
Include <sys/stat.h>, not <include/sys/stat.h>, if !_LIBC.
[!_LIBC] (__chdir, __closedir, __fchdir, __getcwd, __opendir): Define.
[!_LIBC] (__readdir64, __tdestroy, __tfind, __tsearch): Define.
[!_LIBC] (internal_function, dirent64, MAX): Define.
(__set_errno): Define if not already defined.
(open_dir_stream): When FTW_CHDIR is enabled, invoke opendir on
the basename, not the entire file name.
(process_entry): When FTW_CHDIR is enabled, invoke XSTAT or LXSTAT on
the basename, not the entire file name.
2003-01-12 Ulrich Drepper <drepper@redhat.com>
* string/tester.c (test_strcpy): Disable last added strcpy until
it is fixed.
2003-01-11 Philip Blundell <philb@gnu.org>
* sysdeps/unix/sysv/linux/arm/socket.S: Add cancellation support.
2003-01-11 Andreas Schwab <schwab@suse.de>
* Makerules: Add vpath for %.dynsym and %.so so that the
implicit rule chaining for check-abi works.
2003-01-11 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/unix/sysv/linux/sh/sysdep.h (SYSCALL_ERROR_HANDLER):
Add non-PIC case.
2003-01-11 Jakub Jelinek <jakub@redhat.com>
* elf/tls-macros.h [__ia64__] (__TLS_CALL_CLOBBERS): Define.
[__ia64__] (TLS_LE, TLS_IE): Fix typos. Add ;; at start of asm if
gp is used early.
[__ia64__] (TLS_LD, TLS_GD): Likewise. Use __TLS_CALL_CLOBBERS.
* elf/Makefile ($(objpfx)tst-tlsmod5.so, $(objpfx)tst-tlsmod6.so):
Ensure libc.so in DT_NEEDED.
* sysdeps/alpha/dl-machine.h (elf_machine_rela): Move
CHECK_STATIC_TLS before l_tls_offset use.
* sysdeps/i386/dl-machine.h (elf_machine_rel, elf_machine_rela):
Likewise.
* sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/generic/dl-tls.c (_dl_allocate_tls_storage) [TLS_DTV_AT_TP]:
Allocate TLS_PRE_TCB_SIZE bytes below result.
(_dl_deallocate_tls) [TLS_DTV_AT_TP]: Adjust before freeing.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): If
TLS_INIT_TP_EXPENSIVE is not defined, allocate even if no PT_TLS
segment has been found. If TLS_DTV_AT_TP, allocate TLS_PRE_TCB_SIZE
bytes below result and add tcb_offset to memsz.
* sysdeps/ia64/dl-tls.h (__tls_get_addr): New prototype.
* sysdeps/ia64/dl-machine.h: Include tls.h.
(elf_machine_type_class): Return ELF_RTYPE_CLASS_PLT for TLS relocs
too.
(elf_machine_rela): Assume if sym_map != NULL sym is non-NULL too.
Handle R_IA64_DTPMOD*, R_IA64_DTPREL* and R_IA64_TPREL* relocations.
* sysdeps/ia64/libc-tls.c: New file.
2003-01-10 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc64/sysdep.h (PSEUDO_RET): Add branch hit.
* sysdeps/unix/sysv/linux/powerpc/bits/stat.h (STAT_VER_LINUX):
Fix type. Move definition out of #if.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/ftruncate64.c: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pread.c: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pread64.c: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite.c: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite64.c: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/socket.S: Add cancellation
support.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: Remove
ftruncate64, pread64, pwrite64, truncate64 entries.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
(INLINE_SYSCALL): New version that supports function call like
syscalls. Add __builtin_expect.
(LOADARGS_n): Add argument size safety checks.
(INTERNAL_SYSCALL): New Macro.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/truncate64.c: New file.
* sysdeps/unix/sysv/linux/powerpc/sys/procfs.h [__PPC_ELF_H]: Avoid
redefinition of elf_fpreg_t and elf_fpregset_t.
2003-01-12 Ulrich Drepper <drepper@redhat.com>
* elf/dl-close.c (_dl_close): Add several asserts. Correct and
simplify test for unloading. If loader of a DSO is unloaded do not
use its scope anymore. Fall back to own scope and adjust opencounts.
Fix several comments.
* elf/dl-deps.c (_dl_map_object_deps): Always allocate memory for
the l_searchlist, not only for l_initfini.
* elf/dl-lookup.c (add_dependencies): Avoid creating relocation
dependencies if objects cannot be removed. Remove object with the
definition as not unloadable if necessary.
* elf/reldep6.c: Create relocation dependency before closing the first
module.
2003-01-10 Guido Günther <agx@sigxcpu.org>
* elf/Makefile: Add rules to build and run reldep9 test.
* elf/reldep9.c: New file.
* elf/reldep9mod1.c: New file.
* elf/reldep9mod2.c: New file.
* elf/reldep9mod3.c: New file.
2003-01-09 Jakub Jelinek <jakub@redhat.com>
* elf/Makefile: Add rules to build and run nodelete2 test.
* elf/nodelete2.c: New file.
* elf/nodel2mod1.c: New file.
* elf/nodel2mod2.c: New file.
* elf/nodel2mod3.c: New file.
2003-01-09 Jakub Jelinek <jakub@redhat.com>
members to the end, so a libpthread compiled with !USE_TLS will still
find other members properly.
* sysdeps/i386/i486/bits/string.h (__strcpy_g): Add dummy output
operand for DEST memory. Fix dummy input operand to use SRC.
Reported by Davin McCall <davmac@ozonline.com.au>.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Account for TCB
alignment when initializing the DTV entry.
* elf/dl-load.c (_dl_map_object_from_fd): If we hit a TLS segment
when TLS has not been set up, try to set it up if we can.
* elf/tst-tls4.c: Revert last change.
* elf/tst-tls5.c: Likewise.
* elf/tst-tls6.c: Likewise.
* elf/tst-tls7.c: Likewise.
* elf/tst-tls8.c: Likewise.
* elf/tst-tls9.c: Likewise.
* sysdeps/generic/dl-tls.c [SHARED] (_dl_tls_setup): New function.
* sysdeps/generic/ldsodefs.h: Declare it.
* elf/Versions (ld: GLIBC_PRIVATE): Add it.
* sysdeps/generic/libc-tls.c (init_slotinfo): New static inline
function, broken out of __libc_setup_tls.
(init_static_tls): Likewise.
(__libc_setup_tls): Call them.
(_dl_tls_setup): New function, uses new subroutines.
* elf/dl-close.c (free_slotinfo): Make argument pointer to pointer.
Clear the pointer when returning true.
(libc_freeres_fn) [SHARED]: If GL(dl_initial_dtv) is null, free the
first element of the slotinfo list too.
* sysdeps/generic/dl-tls.c (_dl_determine_tlsoffset): Define only if
[SHARED].
* sysdeps/generic/ldsodefs.h (_dl_next_tls_modid): Declare as hidden.
(_dl_determine_tlsoffset): Likewise.
* elf/rtld.c (_dl_initial_error_catch_tsd): Renamed from
startup_error_tsd, made global.
(dl_main): Update initialization.
* elf/dl-tsd.c: Likewise.
* sysdeps/generic/ldsodefs.h: Declare it.
slotinfo list's len member to the proper size, not just 1.
Initialize static_map.l_tls_initimage.
* elf/dl-open.c (dl_open_worker): Fix loop searching for
dtv_slotinfo_list element containing new modules' l_tls_modid.
* elf/tst-tls9.c, elf/tst-tls9-static.c: New files.
* elf/tst-tlsmod5.c, elf/tst-tlsmod6.c: New files.
* elf/Makefile (tests): Add tst-tls9.
(tests-static): Add tst-tls9-static.
(tst-tls9-static-ENV): New variable.
($(objpfx)tst-tls9-static, $(objpfx)tst-tls9-static.out): New targets.
* elf/dl-close.c (remove_slotinfo): Remove an assert; the number of
modids used by partially loaded modules being closed can't be known.
* elf/dl-close.c (remove_slotinfo): Take new argument. If false,
allow IDX to be one past the current last slotinfo entry.
(_dl_close): Pass IMAP->l_init_called for that parameter.
* elf/dl-reloc.c (_dl_relocate_object: CHECK_STATIC_TLS): New macro
to signal error if an IE-model TLS reloc resolved to a dlopen'd module.
* sysdeps/i386/dl-machine.h (elf_machine_rel, elf_machine_rela):
Call it after performing TPOFF relocs.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise.
* elf/dl-conflict.c (CHECK_STATIC_TLS): New macro (no-op).
* elf/dl-close.c (remove_slotinfo): Change asserts so as not to crash
when closing a partially-initialized object.
* elf/dl-load.c (_dl_map_object_from_fd) [! USE_TLS]: Call lose
instead of _dl_fatal_printf when we see PT_TLS.
