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path: root/sysdeps/mach/hurd/dl-sysdep.c
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2018-07-27hurd: Fix some ld.so symbol override from libcSamuel Thibault
ld.so symbols to be overriden by libc need to be extern to really get overriden. More fixes are needed to avoid the hidden attribute. * sysdeps/mach/hurd/Versions (libc): Make __access and __access_noerrno external so they can override the ld symbols. (ld): Make __access, __read, __sbrk, __strtoul_internal, __write, __writev, __open64, __access_noerrno extern so they can be overrided. * sysdeps/mach/hurd/i386/libc.abilist: Update accordingly. * sysdeps/mach/hurd/i386/ld.abilist: Update accordingly.
2018-06-12Avoid cancellable I/O primitives in ld.so.Zack Weinberg
Neither the <dlfcn.h> entry points, nor lazy symbol resolution, nor initial shared library load-up, are cancellation points, so ld.so should exclusively use I/O primitives that are not cancellable. We currently achieve this by having the cancellation hooks compile as no-ops when IS_IN(rtld); this patch changes to using exclusively _nocancel primitives in the source code instead, which makes the intent clearer and significantly reduces the amount of code compiled under IS_IN(rtld) as well as IS_IN(libc) -- in particular, elf/Makefile no longer thinks we require a copy of unwind.c in rtld-libc.a. (The older mechanism is preserved as a backstop.) The bulk of the change is splitting up the files that define the _nocancel I/O functions, so they don't also define the variants that *are* cancellation points; after which, the existing logic for picking out the bits of libc that need to be recompiled as part of ld.so Just Works. I did this for all of the _nocancel functions, not just the ones used by ld.so, for consistency. fcntl was a little tricky because it's only a cancellation point for certain opcodes (F_SETLKW(64), which can block), and the existing __fcntl_nocancel wasn't applying the FCNTL_ADJUST_CMD hook, which strikes me as asking for trouble, especially as the only nontrivial definition of FCNTL_ADJUST_CMD (for powerpc64) changes F_*LK* opcodes. To fix this, fcntl_common moves to fcntl_nocancel.c along with __fcntl_nocancel, and changes its name to the extern (but hidden) symbol __fcntl_nocancel_adjusted, so that regular fcntl can continue calling it. __fcntl_nocancel now applies FCNTL_ADJUST_CMD; so that both both fcntl.c and fcntl_nocancel.c can see it, the only nontrivial definition moves from sysdeps/u/s/l/powerpc/powerpc64/fcntl.c to .../powerpc64/sysdep.h and becomes entirely a macro, instead of a macro that calls an inline function. The nptl version of libpthread also changes a little, because its "compat-routines" formerly included files that defined all the _nocancel functions it uses; instead of continuing to duplicate them, I exported the relevant ones from libc.so as GLIBC_PRIVATE. Since the Linux fcntl.c calls a function defined by fcntl_nocancel.c, it can no longer be used from libpthread.so; instead, introduce a custom forwarder, pt-fcntl.c, and export __libc_fcntl from libc.so as GLIBC_PRIVATE. The nios2-linux ABI doesn't include a copy of vfork() in libpthread, and it was handling that by manipulating libpthread-routines in .../linux/nios2/Makefile; it is cleaner to do what other such ports do, and have a pt-vfork.S that defines no symbols. Right now, it appears that Hurd does not implement _nocancel I/O, so sysdeps/generic/not-cancel.h will forward everything back to the regular functions. This changed the names of some of the functions that sysdeps/mach/hurd/dl-sysdep.c needs to interpose. * elf/dl-load.c, elf/dl-misc.c, elf/dl-profile.c, elf/rtld.c * sysdeps/unix/sysv/linux/dl-sysdep.c Include not-cancel.h. Use __close_nocancel instead of __close, __open64_nocancel instead of __open, __read_nocancel instead of __libc_read, and __write_nocancel instead of __libc_write. * csu/check_fds.c (check_one_fd) * sysdeps/posix/fdopendir.c (__fdopendir) * sysdeps/posix/opendir.c (__alloc_dir): Use __fcntl_nocancel instead of __fcntl and/or __libc_fcntl. * sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np) * sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np) * sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Use __open64_nocancel instead of __open_nocancel. * sysdeps/unix/sysv/linux/not-cancel.h: Move all of the hidden_proto declarations to the end and issue them if either IS_IN(libc) or IS_IN(rtld). * sysdeps/unix/sysv/linux/Makefile [subdir=io] (sysdep_routines): Add close_nocancel, fcntl_nocancel, nanosleep_nocancel, open_nocancel, open64_nocancel, openat_nocancel, pause_nocancel, read_nocancel, waitpid_nocancel, write_nocancel. * io/Versions [GLIBC_PRIVATE]: Add __libc_fcntl, __fcntl_nocancel, __open64_nocancel, __write_nocancel. * posix/Versions: Add __nanosleep_nocancel, __pause_nocancel. * nptl/pt-fcntl.c: New file. * nptl/Makefile (pthread-compat-wrappers): Remove fcntl. (libpthread-routines): Add pt-fcntl. * include/fcntl.h (__fcntl_nocancel_adjusted): New function. (__libc_fcntl): Remove attribute_hidden. * sysdeps/unix/sysv/linux/fcntl.c (__libc_fcntl): Call __fcntl_nocancel_adjusted, not fcntl_common. (__fcntl_nocancel): Move to new file fcntl_nocancel.c. (fcntl_common): Rename to __fcntl_nocancel_adjusted; also move to fcntl_nocancel.c. * sysdeps/unix/sysv/linux/fcntl_nocancel.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Remove file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Define FCNTL_ADJUST_CMD here, as a self-contained macro. * sysdeps/unix/sysv/linux/close.c: Move __close_nocancel to... * sysdeps/unix/sysv/linux/close_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/nanosleep.c: Move __nanosleep_nocancel to... * sysdeps/unix/sysv/linux/nanosleep_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/open.c: Move __open_nocancel to... * sysdeps/unix/sysv/linux/open_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/open64.c: Move __open64_nocancel to... * sysdeps/unix/sysv/linux/open64_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/openat.c: Move __openat_nocancel to... * sysdeps/unix/sysv/linux/openat_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/openat64.c: Move __openat64_nocancel to... * sysdeps/unix/sysv/linux/openat64_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/pause.c: Move __pause_nocancel to... * sysdeps/unix/sysv/linux/pause_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/read.c: Move __read_nocancel to... * sysdeps/unix/sysv/linux/read_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/waitpid.c: Move __waitpid_nocancel to... * sysdeps/unix/sysv/linux/waitpid_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/write.c: Move __write_nocancel to... * sysdeps/unix/sysv/linux/write_nocancel.c: ...this new file. * sysdeps/unix/sysv/linux/nios2/Makefile: Don't override libpthread-routines. * sysdeps/unix/sysv/linux/nios2/pt-vfork.S: New file which defines nothing. * sysdeps/mach/hurd/dl-sysdep.c: Define __read instead of __libc_read, and __write instead of __libc_write. Define __open64 in addition to __open.
2018-04-24Fix Hurd glibc build with GCC 8.Joseph Myers
The build of glibc for Hurd has been failing with GCC mainline because of the checks that aliases have the same type as the symbol aliased; the Hurd dl-sysdep.c has a macro that defines aliases without using the proper type. When GCC 8 branches (soon), I intend to make it the default version in build-many-glibcs.py, so these failures would mean the default build-many-glibcs.py build fails for Hurd again. This patch fixes the Hurd build with GCC 8 by changing the macro that defines the problem aliases to use the correct type for them. An include of <not-errno.h> is needed to avoid this use of typeof resulting in an error for __access_noerrno not being declared. Tested compilation for i686-gnu with build-many-glibcs.py. * sysdeps/mach/hurd/dl-sysdep.c: Include <not-errno.h>. (check_no_hidden): Use type of original function when declaring alias.
2018-03-17hurd: Replace threadvars with TLSSamuel Thibault
This gets rid of a lot of kludge and gets closer to other ports. * hurd/Makefile (headers): Remove threadvar.h. (inline-headers): Remove threadvar.h. * hurd/Versions (GLIBC_2.0: Remove __hurd_sigthread_stack_base, __hurd_sigthread_stack_end, __hurd_sigthread_variables, __hurd_threadvar_max, __hurd_errno_location. (HURD_CTHREADS_0.3): Add pthread_getattr_np, pthread_attr_getstack. * hurd/hurd/signal.h: Do not include <hurd/threadvar.h>. (_hurd_self_sigstate): Use THREAD_SELF to get _hurd_sigstate. (_HURD_SIGNAL_H_EXTERN_INLINE): Use THREAD_SELF to get _hurd_sigstate, unless TLS is not initialized yet, in which case we do not need a critical section yet anyway. * hurd/hurd/threadvar.h: Include <tls.h>, do not include <machine-sp.h>. (__hurd_sigthread_variables, __hurd_threadvar_max): Remove variables declarations. (__hurd_threadvar_index): Remove enum. (_HURD_THREADVAR_H_EXTERN_INLINE): Remove macro. (__hurd_threadvar_location_from_sp,__hurd_threadvar_location): Remove inlines. (__hurd_reply_port0): New variable declaration. (__hurd_local_reply_port): New macro. * hurd/hurdsig.c (__hurd_sigthread_variables): Remove variable. (interrupted_reply_port_location): Add thread_t parameter. Use it with THREAD_TCB to access thread-local variables. (_hurdsig_abort_rpcs): Pass ss->thread to interrupted_reply_port_location. (_hurd_internal_post_signal): Likewise. (_hurdsig_init): Use presence of cthread_fork instead of __hurd_threadvar_stack_mask to start signal thread by hand. Remove signal thread threadvar initialization. * hurd/hurdstartup.c: Do not include <hurd/threadvar.h> * hurd/sigunwind.c: Include <hurd/threadvar.h> (_hurdsig_longjmp_from_handler): Use __hurd_local_reply_port instead of threadvar. * sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE): Add __libc_lock_self0. (ld.GLIBC_2.0): Remove __hurd_sigthread_stack_base, __hurd_sigthread_stack_end, __hurd_sigthread_variables. (ld.GLIBC_PRIVATE): Add __libc_lock_self0. * sysdeps/mach/hurd/cthreads.c: Add __libc_lock_self0. * sysdeps/mach/hurd/dl-sysdep.c (errno, __hurd_sigthread_stack_base, __hurd_sigthread_stack_end, __hurd_sigthread_variables, threadvars, __hurd_threadvar_stack_offset, __hurd_threadvar_stack_mask): Do not define variables. * sysdeps/mach/hurd/errno-loc.c: Do not include <errno.h> and <hurd/threadvar.h>. [IS_IN(rtld)] (rtld_errno): New variable. [IS_IN(rtld)] (__errno_location): New weak function. [!IS_IN(rtld)]: Include "../../../csu/errno-loc.c". * sysdeps/mach/hurd/errno.c: Remove file. * sysdeps/mach/hurd/fork.c: Include <hurd/threadvar.h> (__fork): Remove THREADVAR_SPACE macro and its use. * sysdeps/mach/hurd/i386/init-first.c (__hurd_threadvar_max): Remove variable. (init): Do not initialize threadvar. * sysdeps/mach/hurd/i386/libc.abilist (__hurd_threadvar_max): Remove symbol. * sysdeps/mach/hurd/i386/sigreturn.c (__sigreturn): Use __hurd_local_reply_port instead of threadvar. * sysdeps/mach/hurd/i386/tls.h (tcbhead_t): Add reply_port and _hurd_sigstate fields. (HURD_DESC_TLS, __LIBC_NO_TLS, THREAD_TCB): New macro. * sysdeps/mach/hurd/i386/trampoline.c: Remove outdated comment. * sysdeps/mach/hurd/libc-lock.h: Do not include <hurd/threadvar.h>. (__libc_lock_owner_self): Use &__libc_lock_self0 and THREAD_SELF instead of threadvar. * sysdeps/mach/hurd/libc-tsd.h: Remove file. * sysdeps/mach/hurd/mig-reply.c (GETPORT, reply_port): Remove macros. (use_threadvar, global_reply_port): Remove variables. (__hurd_reply_port0): New variable. (__mig_get_reply_port): Use __hurd_local_reply_port and __hurd_reply_port0 instead of threadvar. (__mig_dealloc_reply_port): Likewise. (__mig_init): Do not initialize threadvar. * sysdeps/mach/hurd/profil.c: Fix comment.
2018-03-04hurd: Add missing includeSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c: Include <mach/machine/vm_param.h>.
2018-02-21hurd: fix buildSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c (_dl_random): New variable.
2018-01-27hurd: fix warningSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c (_exit): Call LOSE and abort() if __task_terminate would ever return successfully.
2018-01-27hurd: fix warningSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start): Cast vm_address_t * to ElfW(Addr) * for dl_main parameter.
2018-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2017-12-15Don't set errno in Hurd rtld's __access_noerrnoThomas Schwinge
* sysdeps/mach/hurd/dl-sysdep.c (__access_noerrno): Don't set errno. Fixes commit 819ea3347e3a30a611488ceeec53650baaeb7961. Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2017-09-24hurd: Make sure dl-sysdep.c defines proper symbol namesSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c (check_no_hidden): New macro. (__open, __close, __libc_read, __libc_write, __writev, __libc_lseek64, __mmap, __fxstat64, __xstat64, __access, __access_noerrno, __getpid, __getcwd, __sbrk, __strtoul_internal, _exit, abort): Use check_no_hidden to make sure that these symbols are defined.
2017-09-12hurd: Fix build without NO_HIDDENSamuel Thibault
* posix/sched_primax.c (__sched_get_priority_max): Add libc_hidden_def. * posix/sched_primin.c (__sched_get_priority_min): Likewise. * sysdeps/mach/hurd/mmap.c (__mmap): Likewise. * sysdeps/mach/hurd/mmap64.c (__mmap64): Likewise. * sysdeps/mach/hurd/mprotect.c (__mprotect): Likewise. * sysdeps/mach/hurd/munmap.c (__munmap): Likewise. * sysdeps/mach/hurd/dl-sysdep.c (__GI___getpid, __GI___strtoul_internal, __GI_____strtoul_internal, __GI___chk_fail, __GI___fortify_fail, __GI___assert_fail, __GI___assert_perror_fail): Add aliases.
2017-09-03hurd: Fix rtld's strtoul_internal use through hurdlookupSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c (__strtoul_internal): New function.
2017-09-03hurd: fix overriding rtld's __sbrk with the real implementationSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c (__sbrk): Add weak_function qualifier.
2017-09-03hurd: Fix rtld linkSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c (__sbrk): New function.
2017-09-03hurd: Fix rtld linkSamuel Thibault
dl-tunables.c now uses __access_noerrno in addition to __access. * sysdeps/mach/hurd/dl-sysdep.c (__access_noerrno): New function.
2017-08-31elf: Remove internal_function attributeFlorian Weimer
2017-08-08Do not use __ptr_t.Joseph Myers
sys/cdefs.h has a macro __ptr_t, which a few places in glibc use instead of void *. void * is a well-understood standard type for that purpose and in a post-C89 context there is no need for a macro for it; this patch changes those places to use void * directly instead. Unlike __long_double_t, __ptr_t is widely used outside glibc (or at least has many hits on codesearch.debian.net). I don't know how many of those uses would break if sys/cdefs.h ceased to define the macro, but there's enough risk that this patch leaves the definition and just removes the uses within glibc; removal of the definition can be considered separately if desired. Tested for x86_64, and with build-many-glibcs.py. * malloc/mcheck.c (old_free_hook): Use void * instead of __ptr_t. (old_malloc_hook): Likewise. (old_memalign_hook): Likewise. (old_realloc_hook): Likewise. (struct hdr): Likewise. (flood): Likewise. (freehook): Likewise. (mallochook): Likewise. (memalignhook): Likewise. (reallochook): Likewise. (mprobe): Likewise. * malloc/mtrace.c (mallwatch): Likewise. (tr_old_free_hook): Likewise. (tr_old_malloc_hook): Likewise. (tr_old_realloc_hook): Likewise. (tr_old_memalign_hook): Likewise. (tr_where): Likewise. (lock_and_info): Likewise. (tr_freehook): Likewise. (tr_mallochook): Likewise. (tr_reallochook): Likewise. (tr_memalignhook): Likewise. * misc/err.h [!__GNUC_VA_LIST] (__gnuc_va_list): Likewise. * misc/mmap.c (__mmap): Likewise. * misc/mmap64.c (__mmap64): Likewise. * misc/mprotect.c (__mprotect): Likewise. * misc/msync.c (msync): Likewise. * misc/munmap.c (__munmap): Likewise. * posix/posix_madvise.c (posix_madvise): Likewise. * socket/send.c (__send): Likewise. * socket/sendto.c (__sendto): Likewise. * socket/setsockopt.c (__setsockopt): Likewise. * string/memcmp.c (__ptr_t): Remove macro. (MEMCMP): Use void * instead of ptr_t. * string/memrchr.c (__ptr_t): Remove macro. (__memrchr): Use void * instead of ptr_t. * sysdeps/mach/hurd/dl-sysdep.c (__mmap): Likewise. * sysdeps/mach/hurd/mmap.c (__mmap): Likewise. * sysdeps/mach/hurd/mmap64.c (__mmap64): Likewise. * sysdeps/mach/mprotect.c (__mprotect): Likewise. * sysdeps/mach/msync.c (msync): Likewise. * sysdeps/mach/munmap.c (__munmap): Likewise. * sysdeps/mips/bits/setjmp.h (struct __jmp_buf_internal_tag): Likewise. * sysdeps/posix/getcwd.c (__getcwd): Likewise. * sysdeps/powerpc/powerpc32/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc32/power4/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc32/power4/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc32/power6/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc32/power6/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc32/power7/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc32/power7/mempcpy.S (__mempcpy): Likewise. * sysdeps/powerpc/powerpc32/power7/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc64/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/power4/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc64/power4/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/power6/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc64/power6/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/power7/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc64/power7/mempcpy.S (__mempcpy): Likewise. * sysdeps/powerpc/powerpc64/power7/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/power8/memset.S (memset): Likewise. * sysdeps/tile/memcmp.c (__ptr_t): Remove macro. (MEMCMP): Use void * instead of ptr_t. * sysdeps/unix/sysv/linux/alpha/oldglob.c (old_glob_t): Likewise. * sysdeps/unix/sysv/linux/mmap.c (__mmap): Likewise.
2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
2016-12-31Add framework for tunablesSiddhesh Poyarekar
The tunables framework allows us to uniformly manage and expose global variables inside glibc as switches to users. tunables/README has instructions for glibc developers to add new tunables. Tunables support can be enabled by passing the --enable-tunables configure flag to the configure script. This patch only adds a framework and does not pose any limitations on how tunable values are read from the user. It also adds environment variables used in malloc behaviour tweaking to the tunables framework as a PoC of the compatibility interface. * manual/install.texi: Add --enable-tunables option. * INSTALL: Regenerate. * README.tunables: New file. * Makeconfig (CPPFLAGS): Define TOP_NAMESPACE. (before-compile): Generate dl-tunable-list.h early. * config.h.in: Add HAVE_TUNABLES. * config.make.in: Add have-tunables. * configure.ac: Add --enable-tunables option. * configure: Regenerate. * csu/init-first.c (__libc_init_first): Move __libc_init_secure earlier... * csu/init-first.c (LIBC_START_MAIN):... to here. Include dl-tunables.h, libc-internal.h. (LIBC_START_MAIN) [!SHARED]: Initialize tunables for static binaries. * elf/Makefile (dl-routines): Add dl-tunables. * elf/Versions (ld): Add __tunable_set_val to GLIBC_PRIVATE namespace. * elf/dl-support (_dl_nondynamic_init): Unset MALLOC_CHECK_ only when !HAVE_TUNABLES. * elf/rtld.c (process_envvars): Likewise. * elf/dl-sysdep.c [HAVE_TUNABLES]: Include dl-tunables.h (_dl_sysdep_start): Call __tunables_init. * elf/dl-tunable-types.h: New file. * elf/dl-tunables.c: New file. * elf/dl-tunables.h: New file. * elf/dl-tunables.list: New file. * malloc/tst-malloc-usable-static.c: New test case. * malloc/Makefile (tests-static): Add it. * malloc/arena.c [HAVE_TUNABLES]: Include dl-tunables.h. Define TUNABLE_NAMESPACE. (DL_TUNABLE_CALLBACK (set_mallopt_check)): New function. (DL_TUNABLE_CALLBACK_FNDECL): New macro. Use it to define callback functions. (ptmalloc_init): Set tunable values. * scripts/gen-tunables.awk: New file. * sysdeps/mach/hurd/dl-sysdep.c: Include dl-tunables.h. (_dl_sysdep_start): Call __tunables_init.
2016-10-31hurd: Fix spurious port deallocationBrent W. Baccala
* sysdeps/mach/hurd/dl-sysdep.c (__mmap): Do not deallocate memobj_wr when it is MACH_PORT_NULL.
2016-01-04Update copyright dates with scripts/update-copyrights.Joseph Myers
2015-11-25hurd: Initialize __libc_stack_end for hidden supportSamuel Thibault
* sysdeps/mach/hurd/dl-sysdep.c (__libc_stack_end): Initialize to get into initialized data instead of common.
2015-11-25Do not add relro attribute to __libc_stack_endSamuel Thibault
It does not actually work yet * sysdeps/mach/hurd/dl-sysdep.c (__libc_stack_end): Remove relro attribute.
2015-11-25Fix hurd build with hidden supportSamuel Thibault
* hurd/sigunwind.c (_hurdsig_longjmp_from_handler): Destroy reply port of interrupted RPC instead of restoring it. * sysdeps/i386/setjmp.S (__sigsetjmp): Add hidden_def. * sysdeps/mach/hurd/accept4.c (__libc_accept4): Remove libc_hidden_def. * sysdeps/mach/hurd/dl-sysdep.c (__libc_stack_end): Add relro attribute, define rtld_hidden_data_def. * sysdeps/mach/hurd/fxstatat64.c (__fxstatat64): Add libc_hidden_def. * sysdeps/mach/hurd/if_index.c (__if_freenameindex): Add libc_hidden_def. (if_freenameindex): Add libc_hidden_weak. (if_nameindex): Add libc_hidden_weak. * sysdeps/mach/hurd/open.c (_open64): Rename libc_hidden_weak into __open64. * sysdeps/mach/hurd/sigwait.c (__sigwait): Add libc_hidden_def. * sysdeps/mach/hurd/xmknodat.c (__xmknodat): Add libc_hidden_def. * sysdeps/mach/nanosleep.c: Include <time.h> (__nanosleep): Rename to __libc_nanosleep. (__nanosleep): Add weak_alias. (nanosleep): Update alias. * sysdeps/mach/hurd/configure.ac (NO_HIDDEN): Do not define. * sysdeps/mach/hurd/configure: Regenerate.
2015-11-09ld.so: Add original DSO name if overridden by audit module [BZ #18251]Florian Weimer
* elf/dl-load.c (_dl_map_object_from_fd): Add additional parameter for original name of the DSO. Add it to the name list of the DSO if it is actually given. (_dl_map_object): Keep track of whether an audit module rewrote the file name. If yes, pass the original name to _dl_map_object_from_fd in a new parameter, otherwise NULL. When debugging is enabled, log the change of the file name. * sysdeps/mach/hur/dl-sysdep.c: Adjust commented-out call to _dl_map_object_from_fd. * elf/Makefile: Build and run tst-audit11 and tst-audit12. * elf/tst-audit11.c: New file * elf/tst-auditmod11.c: New file. * elf/tst-audit11mod1.c: New file. * elf/tst-audit11mod2.c: New file. * elf/tst-audit11mod2.map: New file. * elf/tst-audit12.c: New file * elf/tst-auditmod12.c: New file. * elf/tst-audit12mod1.c: New file. * elf/tst-audit12mod2.c: New file. * elf/tst-audit12mod2.map: New file. * elf/tst-audit12mod3.c: New file.
2015-09-16Cache the host port like we cache the task portJustus Winter
This way we do not need to call the kernel just to get the port. Furthermore, we no longer increase the reference count on every invocation of `mach_host_self'. * mach/mach/mach_traps.h (__mach_host_self, mach_host_self): Protect declarations against the macro expansion. * mach/mach_init.c (__mach_host_self_): New variable. (mach_init): Initialize `__mach_host_self_'. * mach/mach_init.h (__mach_host_self_): New declaration. (__mach_host_self, mach_host_self): New macros. * sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start_cleanup): Release reference.
2015-03-21Fix warningsSamuel Thibault
* sysdeps/mach/hurd/Makefile ($(common-objpfx)errnos.d): Depend on libc-modules.h * sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler): Remove unused declaration of _hurd_intr_rpc_msg_in_trap. * mach/mach_init.c (__mach_init): Test whether HAVE_HOST_PAGE_SIZE is defined instead of whether it is non-zero. * sysdeps/mach/hurd/i386/intr-msg.h (INTR_MSG_TRAP): Use "+m" input constraint instead of both input and output constraint. Use ecx clobber instead of %ecx. * sysdeps/mach/hurd/malloc-machine.h (mutex_init, mutex_lock, mutex_unlock): Use a statement expression instead of an expression list. * sysdeps/mach/hurd/setitimer.c (_hurd_itimer_thread_stack_size): Set type to vm_size_t instead of vm_address_t. * sysdeps/mach/hurd/fork.c (__fork): Test whether STACK_GROWTH_UP is defined instead of whether it is non-zero. * hurd/hurd/ioctl.h (_hurd_locked_install_cttyid): New declaration. * sysdeps/mach/hurd/setsid.c: Include <hurd/ioctl.h>. * sysdeps/mach/hurd/mmap.c (__mmap): Use 0 instead of NULL for comparisons with mapaddr. * nscd/nscd-client.h: Include <time.h>. * sysdeps/mach/hurd/dl-sysdep.c (fmh): Pass vm_offset_t dummy 9th parameter to __vm_region instead of int.
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers
2014-10-10Don't use INTVARDEF/INTUSE with __libc_enable_secure (bug 14132).Joseph Myers
Continuing the removal of the obsolete INTDEF / INTVARDEF / INTUSE mechanism, this patch replaces its use for __libc_enable_secure with the use of rtld_hidden_data_def and rtld_hidden_proto. Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. [BZ #14132] * elf/dl-sysdep.c (__libc_enable_secure): Use rtld_hidden_data_def instead of INTVARDEF. (_dl_sysdep_start): Do not use INTUSE with __libc_enable_secure. * sysdeps/mach/hurd/dl-sysdep.c (__libc_enable_secure): Use rtld_hidden_data_def instead of INTVARDEF. (_dl_sysdep_start): Do not use INTUSE with __libc_enable_secure. * elf/dl-deps.c (expand_dst): Likewise. * elf/dl-load.c (_dl_dst_count): Likewise. (_dl_dst_substitute): Likewise. (decompose_rpath): Likewise. (_dl_init_paths): Likewise. (open_path): Likewise. (_dl_map_object): Likewise. * elf/rtld.c (dl_main): Likewise. (process_dl_audit): Likewise. (process_envvars): Likewise. * include/unistd.h [IS_IN_rtld] (__libc_enable_secure_internal): Remove declaration. (__libc_enable_secure): Use rtld_hidden_proto.
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae
2013-08-30Fix typos.Ondřej Bílka
2013-06-08Use (void) in no-arguments function definitions.Joseph Myers
2013-05-26_dl_skip_args declaration cleanup.Thomas Schwinge
* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start:go): Don't declare _dl_skip_args. Continuation of commit 8347c74cc5c972aa9e57747177b1f5f4b1cbcac8.
2013-01-02Update copyright notices with scripts/update-copyrights.Joseph Myers
2012-10-05Move _dl_important_hwcaps to dl-hwcaps.cH.J. Lu
2012-05-10Hurd: Hurd: dl-sysdep.c: Include code only #ifdef SHARED.Samuel Thibault
2012-05-10Hurd: O_CLOEXEC in rtldThomas Schwinge
2012-02-09Replace FSF snail mail address with URLs.Paul Eggert
2010-03-29Fix typos from last patch.Ulrich Drepper
2010-03-29Handle platforms without aux vectorThomas Schwinge
2008-07-02* sysdeps/mach/hurd/recv.c (__recv): Initialize NPORTS.cvs/fedora-glibc-20080703T1203Roland McGrath
* sysdeps/mach/hurd/recvfrom.c (__recvfrom): Likewise. * sysdeps/mach/hurd/recvmsg.c (__recvmsg): Likewise. * hurd/fd-read.c (_hurd_fd_read): Initialize NREAD. * hurd/get-host.c (_hurd_get_host_config): Likewise. * sysdeps/mach/hurd/dl-sysdep.c (__libc_read): Likewise.
2004-09-062004-09-06 Roland McGrath <roland@frob.com>Roland McGrath
* sysdeps/mach/hurd/dl-sysdep.c (__writev): Does use assert on FD validity, since __assert_fail gets to here anyway. Just fail.
2004-03-082004-03-08 Jeroen Dekkers <jeroen@dekkers.cx>Roland McGrath
* sysdeps/mach/hurd/dl-sysdep.c (_dl_important_hwcaps): Don't use INTUSE with _dl_signal_error.
2004-03-06Update.Ulrich Drepper
* elf/Versions: Remove functions which are not exported anymore. * dlfcn/dlerror.c: Call ld.so functions through GLSO. * dlfcn/dlinfo.c: Likewise. * elf/dl-close.c: Likewise. * elf/dl-libc.c: Likewise. * elf/dl-open.c: Likewise. * elf/dl-sym.c: Likewise. * sysdeps/generic/libc-start.c: Likewise. * elf/dl-debug.c: Remove *_internal definition. Don't use INTUSE for functions which are not exported anymore. * elf/dl-deps.c: Likewise. * elf/dl-dst.h: Likewise. * elf/dl-error.c: Likewise. * elf/dl-fini.c: Likewise. * elf/dl-init.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-misc.c: Likewise. * elf/dl-profile.c: Likewise. * elf/dl-profstub.c: Likewise. * elf/dl-reloc.c: Likewise. * elf/dl-runtime.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-lookup.h: Likewise. * include/dlfcn.h: Likewise. * sysdeps/generic/dl-cache.c: Likewise. * sysdeps/generic/dl-fptr.c: Likewise. * sysdeps/generic/dl-origin.c: Likewise. * sysdeps/generic/dl-sysdep.c: Likewise. * sysdeps/generic/dl-tls.c: Likewise. * sysdeps/generic/ldsodefs.h: Likewise. * sysdeps/i386/dl-tls.h: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * elf/rtld.c: Likewise. Export function though _rtld_global_ro. * generic/dl-fptr.c: Likewise. * mach/hurd/dl-sysdep.c: Likewise. * unix/sysv/linux/ia64/dl-static.c: Likewise. * unix/sysv/linux/ia64/getpagesize.c: Likewise. * unix/sysv/linux/m68k/getpagesize.c: Likewise. * unix/sysv/linux/sparc/sparc32/getpagesize.c: Likewise.
2003-12-222003-12-21 Roland McGrath <roland@frob.com>Roland McGrath
* sysdeps/mach/hurd/dl-sysdep.c (_exit): Define with attribute_hidden.
2002-09-28* sysdeps/mach/hurd/dl-sysdep.c (_dl_important_hwcaps): Use INTUSE forRoland McGrath
_dl_signal_error. * sysdeps/mips/dl-machine.h (elf_machine_runtime_link_map): Likewise. * sysdeps/powerpc/powerpc64/dl-machine.c (_dl_reloc_overflow): Likewise. * sysdeps/arm/dl-machine.h (elf_machine_rel): Likewise. (elf_machine_rela): Likewise.
2002-09-22* sysdeps/mach/hurd/dl-sysdep.c (_exit): Add alias __GI__exit.Roland McGrath
2002-08-30* sysdeps/mach/_strerror.c (__strerror_r): Add libc_hidden_def.Roland McGrath
* sysdeps/mach/hurd/pwrite64.c: No libc_hidden_def (__libc_pwrite64). * sysdeps/mach/hurd/dl-sysdep.c (__GI_abort): Define alias for abort. * include/assert.h (__assert_perror_fail): Declare it, do hidden_proto. * assert/assert-perr.c: Add libc_hidden_def. * elf/dl-minimal.c [! NDEBUG] (__assert_perror_fail): New function. * sysdeps/gnu/errlist-compat.awk: Don't fail if there are no versions found at all. * sysdeps/gnu/Versions: File removed. Moved all #errlist-compat sys_errlist stuff to ... * sysdeps/unix/sysv/linux/Versions: ... here. * mach/mach.h: Include <features.h>.
2002-08-18* sysdeps/mach/hurd/dl-sysdep.cRoland McGrath
[HP_TIMING_AVAIL] (_dl_cpuclock_offset): New variable. [HP_TIMING_AVAIL] (_dl_sysdep_start): Set it with HP_TIMING_NOW.
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