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* hurd: Fix ld.so __access override from libcSamuel Thibault2019-12-011-1/+2
| | | | | | ld.so symbols to be overriden by libc need to be extern to really get overriden. __access happens to have never been exposed, putting it to GLIBC_PRIVATE.
* hurd: Fix ld.so __getcwd override from libcSamuel Thibault2019-12-011-1/+2
| | | | | | ld.so symbols to be overriden by libc need to be extern to really get overriden. __getcwd happens to have never been exposed, putting it to GLIBC_PRIVATE.
* hurd: Fix linknamespace of spawniSamuel Thibault2018-12-071-0/+2
| | | | | | | | | * include/unistd.h (__confstr): Add prototype and hidden prototype. * posix/confstr.c (confstr): Rename to __confstr. (__confstr): Add hidden def. (confstr): Add weak alias for __confstr. * sysdeps/mach/hurd/spawni.c (__spawni): Call __confstr instead of confstr.
* posix: Fix posix_spawnp to not execute invalid binaries in non compat mode ↵Adhemerval Zanella2018-06-081-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (BZ#23264) Current posix_spawnp implementation wrongly tries to execute invalid binaries (for instance script without shebang) as a shell script in non compat mode. It was a regression introduced by 9ff72da471a509a8c19791efe469f47fa6977410 when __spawni started to use __execvpe instead of __execve (glibc __execvpe try to execute ENOEXEC as shell script regardless). This patch fixes it by using an internal symbol (__execvpex) with the faulty semantic (since compat mode is handled by spawni.c itself). It was reported by Daniel Drake on libc-help [1]. Checked on x86_64-linux-gnu and i686-linux-gnu. [BZ #23264] * include/unistd.h (__execvpex): New prototype. * posix/Makefile (tests): Add tst-spawn4. (tests-internal): Add tst-spawn4-compat. * posix/execvpe.c (__execvpe_common, __execvpex): New functions. * posix/tst-spawn4-compat.c: New file. * posix/tst-spawn4.c: Likewise. * sysdeps/unix/sysv/linux/spawni.c (__spawni): Do not interpret invalid binaries as shell scripts. * sysdeps/posix/spawni.c (__spawni): Likewise. [1] https://sourceware.org/ml/libc-help/2018-06/msg00012.html
* hurd: Implement faccessat without AT_EACCESS flagSamuel Thibault2018-01-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | * hurd/hurd/fd.h: Include <fcntl.h> (__hurd_at_flags): New function. * hurd/lookup-at.c (__file_name_lookup_at): Replace flag computation with call to __hurd_at_flags. * include/unistd.h (__faccessat, __faccessat_noerrno): Add declaration. * sysdeps/mach/hurd/access.c (access_common): Move implementation to __faccessat (hurd_fail_seterrno, hurd_fail_noerrno): Move to sysdeps/mach/hurd/faccessat.c. (__access_noerrno): Use __faccessat_common instead of access_common. (__access): Likewise. * sysdeps/mach/hurd/euidaccess.c (__euidaccess): Replace implementation with a call to __faccessat. * sysdeps/mach/hurd/faccessat.c (faccessat): Rename into... (__faccessat_common): ... this. Move implementation of __access into it when AT_FLAGS does not contain AT_EACCESS. Make it call __hurd_at_flags, add reauthenticate_cwdir_at helper to implement AT mechanism. (__faccessat_noerrno): New function, just calls __faccessat_common. (__faccessat): New function, just calls __faccessat_common. (faccessat): Define weak alias.
* Mark internal unistd functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-011-28/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark internal unistd functions with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/unistd.h (__access): Add attribute_hidden. (__lseek64): Likewise. (__libc_pread64): Likewise. (__pipe2): Likewise. (__sleep): Likewise. (__chdir): Likewise. (__fchdir): Likewise. (__getcwd): Likewise. (__rmdir): Likewise. (__execvpe): Likewise. (__execve): Likewise. (__setsid): Likewise. (__getuid): Likewise. (__geteuid): Likewise. (__getgid): Likewise. (__getegid): Likewise. (__getgroups): Likewise. (__group_member): Likewise. (__ttyname_r): Likewise. (__isatty): Likewise. (__readlink): Likewise. (__unlink): Likewise. (__gethostname): Likewise. (__profil): Likewise. (__getdtablesize): Likewise. (__brk): Likewise. (__ftruncate): Likewise. (__ftruncate64): Likewise.
* hurd: Fix `revoke' symbol exposition from `unlockpt'Samuel Thibault2017-09-281-0/+1
| | | | | | | | | | | | `revoke' is MISC only, it should not be exposed along `unlockpt' which is XOPEN. * include/unistd.h (__revoke): New declaration. * misc/revoke.c (revoke): Rename to __revoke, and redefine as weak alias. * sysdeps/mach/hurd/revoke.c (revoke): Likewise. * sysdeps/unix/bsd/unlockpt.c (unlockpt): Use __revoke instead of revoke.
* Consolidate non cancellable pause callAdhemerval Zanella2017-08-221-2/+0
| | | | | | | | | | | | | | | | | | This patch consolidates all the non cancellable pause calls to use the __pause_nocancel identifier. For non cancellable targets it will be just a macro to call the default respective symbol while on Linux will be a internal one. Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu. * nptl/pthread_mutex_lock.c (__pthread_mutex_lock_full): Replace pause_not_cancel with __pause_nocancel. * sysdeps/generic/not-cancel.h (pause_not_cancel): Remove macro. (__pause_nocancel): New macro. * sysdeps/unix/sysv/linux/not-cancel.h (pause_not_cancel): Remove macro. (__pause_nocancel): New prototype. * sysdeps/unix/sysv/linux/pause.c (__pause_nocancel): New function.
* tunables: Use direct syscall for access (BZ#21744)Adhemerval Zanella2017-07-241-7/+0
| | | | | | | | | | | | | | | | | | | | | | | The function maybe_enable_malloc_check, which is called by __tunables_init, calls __access_noerrno. It isn't problem when symbol is is in ld.so, which has a special version of __access_noerrno without stack protector. But when glibc is built with stack protector, maybe_enable_malloc_check in libc.a can't call the regular version of __access_noerrno with stack protector. This patch changes how Linux defines the __access_noerrno to be an inline call instead and thus preventing defining different build rules for ld/static and shared. H.J. Lu <hongjiu.lu@intel.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> [BZ #21744] * elf/dl-tunables.c: Include not-errno.h header. * include/unistd.h (__access_noerrno): Remove definition. * sysdeps/unix/sysv/linux/access.c (__access_noerrno): Likewise. * sysdeps/generic/not-errno.h: New file. * sysdeps/unix/sysv/linux/not-errno.h: Likewise.
* Suppress internal declarations for most of the testsuite.Zack Weinberg2017-05-111-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new build module called 'testsuite'. IS_IN (testsuite) implies _ISOMAC, as do IS_IN_build and __cplusplus (which means several ad-hoc tests for __cplusplus can go away). libc-symbols.h now suppresses almost all of *itself* when _ISOMAC is defined; in particular, _ISOMAC mode does not get config.h automatically anymore. There are still quite a few tests that need to see internal gunk of one variety or another. For them, we now have 'tests-internal' and 'test-internal-extras'; files in this category will still be compiled with MODULE_NAME=nonlib, and everything proceeds as it always has. The bulk of this patch is moving tests from 'tests' to 'tests-internal'. There is also 'tests-static-internal', which has the same effect on files in 'tests-static', and 'modules-names-tests', which has the *inverse* effect on files in 'modules-names' (it's inverted because most of the things in modules-names are *not* tests). For both of these, the file must appear in *both* the new variable and the old one. There is also now a special case for when libc-symbols.h is included without MODULE_NAME being defined at all. (This happens during the creation of libc-modules.h, and also when preprocessing Versions files.) When this happens, IS_IN is set to be always false and _ISOMAC is *not* defined, which was the status quo, but now it's explicit. The remaining changes to C source files in this patch seemed likely to cause problems in the absence of the main change. They should be relatively self-explanatory. In a few cases I duplicated a definition from an internal header rather than move the test to tests-internal; this was a judgement call each time and I'm happy to change those however reviewers feel is more appropriate. * Makerules: New subdir configuration variables 'tests-internal' and 'test-internal-extras'. Test files in these categories will still be compiled with MODULE_NAME=nonlib. Test files in the existing categories (tests, xtests, test-srcs, test-extras) are now compiled with MODULE_NAME=testsuite. New subdir configuration variable 'modules-names-tests'. Files which are in both 'modules-names' and 'modules-names-tests' will be compiled with MODULE_NAME=testsuite instead of MODULE_NAME=extramodules. (gen-as-const-headers): Move to tests-internal. (do-tests-clean, common-mostlyclean): Support tests-internal. * Makeconfig (built-modules): Add testsuite. * Makefile: Change libof-check-installed-headers-c and libof-check-installed-headers-cxx to 'testsuite'. * Rules: Likewise. Support tests-internal. * benchtests/strcoll-inputs/filelist#en_US.UTF-8: Remove extra-modules.mk. * config.h.in: Don't check for __OPTIMIZE__ or __FAST_MATH__ here. * include/libc-symbols.h: Move definitions of _GNU_SOURCE, PASTE_NAME, PASTE_NAME1, IN_MODULE, IS_IN, and IS_IN_LIB to the very top of the file and rationalize their order. If MODULE_NAME is not defined at all, define IS_IN to always be false, and don't define _ISOMAC. If any of IS_IN (testsuite), IS_IN_build, or __cplusplus are true, define _ISOMAC and suppress everything else in this file, starting with the inclusion of config.h. Do check for inappropriate definitions of __OPTIMIZE__ and __FAST_MATH__ here, but only if _ISOMAC is not defined. Correct some out-of-date commentary. * include/math.h: If _ISOMAC is defined, undefine NO_LONG_DOUBLE and _Mlong_double_ before including math.h. * include/string.h: If _ISOMAC is defined, don't expose _STRING_ARCH_unaligned. Move a comment to a more appropriate location. * include/errno.h, include/stdio.h, include/stdlib.h, include/string.h * include/time.h, include/unistd.h, include/wchar.h: No need to check __cplusplus nor use __BEGIN_DECLS/__END_DECLS. * misc/sys/cdefs.h (__NTHNL): New macro. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h (__m81_defun): Use __NTHNL to avoid errors with GCC 6. * elf/tst-env-setuid-tunables.c: Include config.h with _LIBC defined, for HAVE_TUNABLES. * inet/tst-checks-posix.c: No need to define _ISOMAC. * intl/tst-gettext2.c: Provide own definition of N_. * math/test-signgam-finite-c99.c: No need to define _ISOMAC. * math/test-signgam-main.c: No need to define _ISOMAC. * stdlib/tst-strtod.c: Convert to test-driver. Split locale_test to... * stdlib/tst-strtod1i.c: ...this new file. * stdlib/tst-strtod5.c: Convert to test-driver and add copyright notice. Split tests of __strtod_internal to... * stdlib/tst-strtod5i.c: ...this new file. * string/test-string.h: Include stdint.h. Duplicate definition of inhibit_loop_to_libcall here (from libc-symbols.h). * string/test-strstr.c: Provide dummy definition of libc_hidden_builtin_def when including strstr.c. * sysdeps/ia64/fpu/libm-symbols.h: Suppress entire file in _ISOMAC mode; no need to test __STRICT_ANSI__ nor __cplusplus as well. * sysdeps/x86_64/fpu/math-tests-arch.h: Include cpu-features.h. Don't include init-arch.h. * sysdeps/x86_64/multiarch/test-multiarch.h: Include cpu-features.h. Don't include init-arch.h. * elf/Makefile: Move tst-ptrguard1-static, tst-stackguard1-static, tst-tls1-static, tst-tls2-static, tst-tls3-static, loadtest, unload, unload2, circleload1, neededtest, neededtest2, neededtest3, neededtest4, tst-tls1, tst-tls2, tst-tls3, tst-tls6, tst-tls7, tst-tls8, tst-dlmopen2, tst-ptrguard1, tst-stackguard1, tst-_dl_addr_inside_object, and all of the ifunc tests to tests-internal. Don't add $(modules-names) to test-extras. * inet/Makefile: Move tst-inet6_scopeid_pton to tests-internal. Add tst-deadline to tests-static-internal. * malloc/Makefile: Move tst-mallocstate and tst-scratch_buffer to tests-internal. * misc/Makefile: Move tst-atomic and tst-atomic-long to tests-internal. * nptl/Makefile: Move tst-typesizes, tst-rwlock19, tst-sem11, tst-sem12, tst-sem13, tst-barrier5, tst-signal7, tst-tls3, tst-tls3-malloc, tst-tls5, tst-stackguard1, tst-sem11-static, tst-sem12-static, and tst-stackguard1-static to tests-internal. Link tests-internal with libpthread also. Don't add $(modules-names) to test-extras. * nss/Makefile: Move tst-field to tests-internal. * posix/Makefile: Move bug-regex5, bug-regex20, bug-regex33, tst-rfc3484, tst-rfc3484-2, and tst-rfc3484-3 to tests-internal. * stdlib/Makefile: Move tst-strtod1i, tst-strtod3, tst-strtod4, tst-strtod5i, tst-tls-atexit, and tst-tls-atexit-nodelete to tests-internal. * sunrpc/Makefile: Move tst-svc_register to tests-internal. * sysdeps/powerpc/Makefile: Move test-get_hwcap and test-get_hwcap-static to tests-internal. * sysdeps/unix/sysv/linux/Makefile: Move tst-setgetname to tests-internal. * sysdeps/x86_64/fpu/Makefile: Add all libmvec test modules to modules-names-tests.
* Consolidate Linux write syscallAdhemerval Zanella2017-05-111-0/+1
| | | | | | | | | | | | | This patch consolidates the write Linux syscall implementation on sysdeps/unix/sysv/linux/write.c. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * include/unistd.h (write): Add hidden proto. * io/Makefile (CFLAGS-write.c): New rule. * nptl/Makefile (CFLAGS-write.c): Likewise. * sysdeps/unix/sysv/linux/write.c: New file.
* Consolidate Linux read syscallAdhemerval Zanella2017-05-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the read Linux syscall implementation on sysdeps/unix/sysv/linux/read.c. This leads to a different frame pointer creation on some architectures: * It fixes BZ#21428 on aarch64, since now the returned address for the read syscall can be correctly found out by backtrace_symbols. * It makes tst-backtrace{5,6} fails on powerpc due an issue on its custom backtrace implementation. It is fixed on subsequent patch from this set. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. [BZ #21428] * include/unistd.h (read): Add hidden proto. * io/Makefile (CFLAGS-read.c): New rule. * nptl/Makefile (CFLAGS-read.c): New rule. * sysdeps/unix/sysv/linux/read.c: New file.
* posix: Fix internal p{read,write} plt usageAdhemerval Zanella2017-05-021-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds internal alias for __pread, __pread64, and __pwrite following the already in place one for __pwrite64. This is not used in any implementation but on microblaze on preadv/pwritev fallback (since it does not define __ASSUME_PREADV). In fact it was signaled by commit c35db50ff5 which update the expected localptl.data for the architecture based on resulted value. This patch updates the plt for microblaze now that p{read,write}{64} are correctly routed to use internal alias. Checked on x86_64-linux-gnu and a build for all supported architectures (no all variants although). * include/unistd.h (__pread): Add libc_hidden_proto. (__pread64): Likewise. (__pwrite): Likewise. * sysdeps/unix/sysv/linux/microblaze/localplt.data [libc.so] (__pread64): Remove. * sysdeps/unix/sysv/linux/pread.c (__pread64): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/pread64.c (__pread64): Likewise. * sysdeps/unix/sysv/linux/pwrite.c (__pwrite): Likewise.
* Assume that dup3 is availableFlorian Weimer2017-04-181-2/+0
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* Assume that pipe2 is always availableFlorian Weimer2017-04-181-1/+0
| | | | | The Debian patches for Hurd (which are already required to build glibc before this commit) contain an implementation of pipe2.
* Fix hurd __access_noerrno implementation.Adhemerval Zanella2016-11-181-1/+2
| | | | | | | | | | | | | | This patch fixes some hurd bits from commit afcf3cd8eb that added the __access_noerrno internal symbol. It basically removes the nonrequired __hurd_fail_noerrno (since the 'err' argument is ignored) and fixes a typo for EACCES. However, as stated on maillist [1] this __access_noerrno may still be unsafe to run during initialization of tunables on the Hurd. The access_common calls __hurd_file_name_lookup, which calls __hurd_file_name_lookup_retry, which can set errno. [1] https://sourceware.org/ml/libc-alpha/2016-11/msg00646.html
* New internal function __access_noerrnoAdhemerval Zanella2016-11-161-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | Implement an internal version of __access called __access_noerrno that avoids setting errno. This is useful to check accessibility of files very early on in process startup i.e. before TLS setup. This allows tunables to replace MALLOC_CHECK_ safely (i.e. check existence of /etc/suid-debug to enable/disable MALLOC_CHECK) and at the same time initialize very early so that it can override IFUNCs. Checked on x86_64. * hurd/hurd.h (__hurd_fail_noerrno): New function. * include/unistd.h [IS_IN (rtld) || !defined SHARED]: Declare __access_noerrno. * io/access.c (__access_noerrno): New function. * sysdeps/mach/hurd/access.c (hurd_fail_seterrno): New function. (hurd_fail_seterrno): Likewise. (access_common): Likewise. (__access_noerrno): Likewise. * sysdeps/nacl/access.c (__access_noerrno): Likewise. * sysdeps/unix/sysv/linux/access.c (__access_noerrno): Likewise. * sysdeps/nacl/nacl-interfaces.h (NACL_CALL_NOERRNO): New macro.
* posix: New Linux posix_spawn{p} implementationAdhemerval Zanella2016-03-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a new posix_spawn{p} implementation for Linux. The main difference is it uses the clone syscall directly with CLONE_VM and CLONE_VFORK flags and a direct allocated stack. The new stack and start function solves most the vfork limitation (possible parent clobber due stack spilling). The remaning issue are related to signal handling: 1. That no signal handlers must run in child context, to avoid corrupt parent's state. 2. Child must synchronize with parent to enforce stack deallocation and to possible return execv issues. The first one is solved by blocking all signals in child, even NPTL-internal ones (SIGCANCEL and SIGSETXID). The second issue is done by a stack allocation in parent and a synchronization with using a pipe or waitpid (in case or error). The pipe has the advantage of allowing the child signal an exec error (checked with new tst-spawn2 test). There is an inherent race condition in pipe2 usage for architectures that do not support the syscall directly. In such cases the a pipe plus fctnl is used instead and it may lead to file descriptor leak in parent (as decribed by fcntl documentation). The child process stack is allocate with a mmap with MAP_STACK flag using default architecture stack size. Although it is slower than use a stack buffer from parent, it allows some slack for the compatibility code to run scripts with no shebang (which may use a buffer with size depending of argument list count). Performance should be similar to the vfork default posix implementation and way faster than fork path (vfork on mostly linux ports are basically clone with CLONE_VM plus CLONE_VFORK). The only difference is the syscalls required for the stack allocation/deallocation. It fixes BZ#10354, BZ#14750, and BZ#18433. Tested on i386, x86_64, powerpc64le, and aarch64. [BZ #14750] [BZ #10354] [BZ #18433] * include/sched.h (__clone): Add hidden prototype. (__clone2): Likewise. * include/unistd.h (__dup): Likewise. * posix/Makefile (tests): Add tst-spawn2. * posix/tst-spawn2.c: New file. * sysdeps/posix/dup.c (__dup): Add hidden definition. * sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/alpha/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/arm/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/i386/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/ia64/clone2.S (__clone): Likewise. * sysdeps/unix/sysv/linux/m68k/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/microblaze/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/mips/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/nios2/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/sh/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/tile/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/nptl-signals.h (____nptl_is_internal_signal): New function. * sysdeps/unix/sysv/linux/spawni.c: New file.
* Mark internal unistd functions hidden in ld.soH.J. Lu2016-01-061-1/+5
| | | | | | | | | | | | Since internal unistd functions are only used internally in ld.so and libc.so, they can be made hidden. __close, __getcwd, __getpid, __libc_read and __libc_write can't be hidden in ld.so on Hurd since they will be preempted by the ones in libc.so after bootstrap. [BZ #19122] * include/unistd.h [IS_IN (rtld)]: Include <dl-unistd.h>. * sysdeps/generic/dl-unistd.h: New file. * sysdeps/mach/hurd/dl-unistd.h: Likewise.
* Assume that SOCK_CLOEXEC is available and worksFlorian Weimer2015-10-171-1/+0
| | | | | This fixes (harmless) data races when accessing the various __have_sock_cloexec variables.
* PLT avoidance for _exit in rtld.Roland McGrath2015-07-091-0/+1
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* Fix getlogin_r namespace (bug 18527).Joseph Myers2015-06-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Various functions in XPG4 bring in references to getlogin_r, which is not in XPG4; this is also a bug for some older POSIX versions which aren't yet covered by the linknamespace tests. This patch fixes this by making getlogin_r into a weak alias for __getlogin_r and using __getlogin_r as needed. Tested for x86_64 and x86 (testsuite, and that disassembly of installed stripped shared libraries is unchanged by the patch). [BZ #18527] * login/getlogin_r.c (getlogin_r): Rename to __getlogin_r and define as weak alias of __getlogin_r. Use libc_hidden_weak. * sysdeps/mach/hurd/getlogin_r.c (getlogin_r): Likewise. * sysdeps/unix/getlogin_r.c (getlogin_r): Likewise. * sysdeps/unix/sysv/linux/getlogin_r.c (getlogin_r): Likewise. * include/unistd.h (__getlogin_r): Declare. Use libc_hidden_proto. * posix/glob.c (glob): Call __getlogin_r instead of getlogin_r. * conform/Makefile (test-xfail-XPG3/glob.h/linknamespace): Remove variable. (test-xfail-XPG3/wordexp.h/linknamespace): Likewise. (test-xfail-XPG4/glob.h/linknamespace): Likewise. (test-xfail-XPG4/wordexp.h/linknamespace): Likewise.
* Don't use INTVARDEF/INTUSE with __libc_enable_secure (bug 14132).Joseph Myers2014-10-101-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Clean up __exit_thread.Roland McGrath2014-05-131-3/+0
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* add attribute_hidden to __have_{sock_cloexec,pipe2,dup3Mike Frysinger2012-08-181-3/+3
| | | | | | | These internal knobs are not exposed as part of the public ABI, so mark them hidden to avoid generating relocations against them. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* split assume pipe2/dup3/sock_cloexec knobsMike Frysinger2012-08-181-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can't assume sock_cloexec and pipe2 are bound together as the former defines are found in glibc only while the latter are a combo of kernel headers and glibc. So if we do a runtime detection of SOCK_CLOEXEC, but pipe2() is a stub inside of glibc, we hit a problem. For example: main() { getgrnam("portage"); if (!popen("ls", "r")) perror("popen()"); } getgrnam() will detect that the kernel supports SOCK_CLOEXEC and then set both __have_sock_cloexec and __have_pipe2 to true. But if glibc was built against older kernel headers where __NR_pipe2 does not exist, glibc will have a ENOSYS stub for it. So popen() will always fail as glibc assumes pipe2() works. While this isn't too much of an issue for some arches as they added the functionality to the kernel at the same time, not all arches are that lucky. Since the code already has dedicated names for each feature, delete the defines wiring these three features together and make each one a proper dedicated knob. We've been carrying this in Gentoo since glibc-2.9. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix lots of bitrot for stub configurations.Roland McGrath2012-07-301-1/+1
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* Hurd: dup3Thomas Schwinge2012-05-101-1/+2
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* First steps to get conformtest fully workingUlrich Drepper2012-02-251-0/+2
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* Remove pre-ISO C supportUlrich Drepper2012-01-071-19/+19
| | | | No more __const.
* Fix __readlink declaration.Roland McGrath2011-11-111-1/+1
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* Fix a few problems in fopen and freopenUlrich Drepper2011-05-151-0/+2
| | | | | | | | | fopen should set the FD_CLOEXEC flag if requested evenif the kernel does not support an aotmic operation. freopen should reuse the file descriptor for the stream. This is especially important for calls to change the standard streams (stin, stdout, stderr).
* Fix Linux getlogin{_r,} implementationUlrich Drepper2010-03-241-0/+3
| | | | | | | | | The old implementation uses fd 0 to determine the login TTY. This was needed because using /dev/tty it is not possible to deduce the login TTY. For some time now there is the pseudo-file /proc/self/loginuid which directly helps us to find the user. Prefer using this file. It also works if stdin is closed, redirected, or re-opened.
* Make include/unistd.h suitable for C++ test cases.Duncan Simpson2009-07-231-0/+4
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* Add missing __execvpe prototype.Ulrich Drepper2009-06-021-0/+2
| | | | Avoids warnings.
* * sysdeps/unix/sysv/linux/syscalls.list: Add __pipe2 alias.Ulrich Drepper2008-07-271-0/+7
| | | | | | | | | | * io/pipe2.c: Likewise. * sysdeps/unix/sysv/linux/kernel-features.h: Define __ASSUME_PIPE2 instead of __ASSUME_PACCEPT. * include/unistd.h: Declare __have_pipe2. * libio/iopopen.c: Implement "e" flag. * libio/Makefile (tests): Add tst-popen1. * libio/tst-popen1.c: New file.
* 2006-07-30 Roland McGrath <roland@redhat.com>Roland McGrath2006-07-311-1/+1
| | | | | * include/unistd.h (__pause_nocancel): Add attribute_hidden. * include/time.h (__nanosleep_nocancel): Likewise.
* * sysdeps/unix/sysv/linux/kernel-features.h: Define cvs/fedora-glibc-20060729T2255Ulrich Drepper2006-07-291-0/+2
| | | | | | __ASSUME_FUTEX_LOCK_PI. * include/time.h: Declare __nanosleep_nocancel. * include/unistd.h: Declare __pause_nocancel.
* * posix/bits/unistd.h (__readlinkat_chk): New prototype.Ulrich Drepper2006-04-241-0/+1
| | | | | | | | | | | | | | | | | (__readlinkat_alias): New alias. (readlinkat): New inline function. * include/unistd.h (readlinkat): Add libc_hidden_proto. * sysdeps/unix/sysv/linux/readlinkat.c (readlinkat): Add libc_hidden_def. * io/readlinkat.c (readlinkat): Likewise. * debug/readlinkat_chk.c: New file. * debug/Makefile (routines): Add readlinkat_chk. * debug/Versions (libc): Export __readlinkat_chk@@GLIBC_2.5. * debug/tst-chk1.c (do_test): Add readlinkat tests. * nis/nss_nisplus/nisplus-netgrp.c: Cleanups. code is possible. Move compatibility code in .text.compat section. over gaih array. There is only one function to call in the moment.
* [BZ #2329]Roland McGrath2006-02-211-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2006-02-20 Roland McGrath <roland@redhat.com> * sysdeps/mips: Directory removed, saved in ports repository. * sysdeps/unix/mips: Likewise. * sysdeps/unix/sysv/linux/mips: Likewise. * sysdeps/mach/mips: Likewise. * sysdeps/mach/hurd/mips: Likewise. * shlib-versions: Remove mips matches, now in ports fragment. * sysdeps/unix/sysv/linux/kernel-features.h: Likewise. * configure.in (machine): Likewise. * configure: Regenerated. 2006-02-15 Thomas Schwinge <tschwinge@gnu.org> [BZ #2329] * include/unistd.h (__getresuid, __getresgid, __setresuid) (__setresgid): Fix argument name order in prototypes. * posix/unistd.h (getresuid, getresgid, setresuid, setresgid): Likewise. * posix/getresuid.c (__getresuid): Fix argument order in definition. * posix/getresgid.c (__getresgid): Likewise. * posix/setresuid.c (__setresuid): Likewise. * posix/setresgid.c (__setresgid): Likewise. * sysdeps/mach/hurd/getresuid.c (__getresuid): Likewise. * sysdeps/mach/hurd/getresgid.c (__getresgid): Likewise. * sysdeps/mach/hurd/setresuid.c (__setresuid): Likewise. * sysdeps/mach/hurd/setresgid.c (__setresgid): Likewise. Reported by Samuel Thibault <samuel.thibault@ens-lyon.org>.
* (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.Ulrich Drepper2004-12-221-7/+4
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* 2.5-18.1Jakub Jelinek2007-07-121-4/+7
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* Update.Ulrich Drepper2004-06-301-0/+1
| | | | | | | | | | | | | | | | | 2004-06-30 Ulrich Drepper <drepper@redhat.com> * include/net/if.h: Handle if_nameindex and if_freenameindex with libc_proto_hidden. * sysdeps/unix/sysv/linux/netlinkaccess.h: New file. * sysdeps/unix/sysv/linux/ifaddrs.c: Export netlink handling functions. * sysdeps/unix/sysv/linux/if_index.c (if_nameindex): Implement using netlink if possible. Fall back on ioctl method if necessary. * include/unistd.h: Declare __truncate. * sysdeps/generic/truncate.c: Also define __truncate. * sysdeps/mach/hurd/truncate.c: Likewise. * sysdeps/unix/common/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/truncate64.c: Use __truncate, not truncate.
* * include/unistd.h (__libc_enable_secure): Mark attribute_relro. ↵Richard Henderson2004-01-161-2/+2
| | | | | | | (__libc_enable_secure_internal): Likewise. * include/unistd.h (__libc_enable_secure): Mark attribute_relro. (__libc_enable_secure_internal): Likewise.
* Update.Ulrich Drepper2003-05-061-0/+1
| | | | | | | | | | | * sysdeps/generic/enbl-secure.c (__libc_enable_secure_decided): New variable. (__libc_init_secure): Don't do anything if __libc_enable_secure_decided is nonzero. * include/unistd.h: Declare __libc_enable_secure_decided. * elf/dl-support.c (_dl_aux_init): Recognize AT_UID, AT_EUID, AT_GID, and AT_EGID. If all found, set __libc_enable_secure and __libc_enable_secure_decided.
* Update.Ulrich Drepper2002-12-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * io/sys/stat.h [__USE_MISC]: Define __need_timespec for struct stat. * sysdeps/unix/sysv/linux/xstatconv.c (xstat_conv): Adjust for nsec resolution changes. (xstat64_conv): Likewise. (xstat32_conv): Likewise. * sysdeps/unix/sysv/linux/kernel_stat.h: Add nsec resolution for struct kernel_stat. * sysdeps/unix/sysv/linux/bits/stat.h: Add nsec resolution for structs stat and stat64. * time/time.h (__timespec_defined): Define for __USE_MISC. 2002-12-31 Ulrich Drepper <drepper@redhat.com> * include/signal.h: Add libc_hidden_proto for __libc_current_sigrtmin and __libc_current_sigrtmax. 2002-12-31 Jakub Jelinek <jakub@redhat.com> * include/errno.h (__errno_location): Add prototype. Use libc_hidden_proto unconditionally. * include/netdb.h (__h_errno_location): Use libc_hidden_proto unconditionally. * include/resolv.h (__res_state): Likewise. * hurd/errno-loc.c (__errno_location): Add libc_hidden_def. * include/sys/socket.h (accept): Add libc_hidden_proto. * include/errno.h (__errno_location): Likewise. * include/netdb.h (__h_errno_location): Likewise. * include/resolv.h (__res_state): Likewise. * include/unistd.h (__lseek): Likewise. * sysdeps/generic/errno-loc.c (__errno_location): Add libc_hidden_def. * sysdeps/generic/herrno-loc.c (__h_errno_location): Likewise. * sysdeps/generic/res-state.c (__res_state): Likewise. * sysdeps/generic/accept.c (accept): Likewise. * sysdeps/generic/lseek.c (__lseek): Likewise. * sysdeps/generic/allocrtsig.c (__libc_current_sigrtmin, __libc_current_sigrtmax): Likewise. * sysdeps/mach/hurd/accept.c (accept): Likewise. * sysdeps/mach/hurd/lseek.c (__lseek): Likewise. * sysdeps/unix/sysv/aix/accept.c (accept): Likewise. * sysdeps/unix/sysv/aix/lseek.c (__lseek): Likewise. * sysdeps/unix/sysv/linux/accept.S (accept): Likewise. * sysdeps/unix/inet/syscalls.list (__GI_accept): New alias to accept. * sysdeps/unix/sysv/linux/alpha/syscalls.list (__GI_accept): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (__GI_accept): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (__GI___lseek): New alias to llseek. (__GI_accept): New alias to accept. * sysdeps/unix/sysv/linux/mips/syscalls.list (__GI_accept): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (__GI___lseek): New alias to llseek. (__GI_accept): New alias to accept. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (__GI_accept): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (__GI_accept): Likewise. * sysdeps/unix/syscalls.list (__GI___lseek): New alias to lseek. * sysdeps/alpha/setjmp.S : Use libc_hidden_def(name) instead of strong_alias (name, __GI_name). * sysdeps/arm/bsd-_setjmp.S : Likewise. * sysdeps/hppa/bsd-_setjmp.S : Likewise. * sysdeps/i386/bsd-_setjmp.S : Likewise. * sysdeps/mips/mips64/bsd-_setjmp.S : Likewise. * sysdeps/mips/bsd-_setjmp.S : Likewise. * sysdeps/powerpc/powerpc32/bsd-_setjmp.S : Likewise. * sysdeps/powerpc/powerpc64/setjmp.S : Likewise. * sysdeps/s390/s390-32/elf/setjmp.S : Likewise. * sysdeps/s390/s390-32/bsd-_setjmp.S : Likewise. * sysdeps/s390/s390-64/elf/setjmp.S : Likewise. * sysdeps/s390/s390-64/bsd-_setjmp.S : Likewise. * sysdeps/sh/bsd-_setjmp.S : Likewise. * sysdeps/sparc/sparc32/setjmp.S : Likewise. * sysdeps/unix/arm/fork.S : Likewise. * sysdeps/unix/bsd/hp/m68k/vfork.S : Likewise. * sysdeps/unix/bsd/i386/vfork.S : Likewise. * sysdeps/unix/bsd/osf/alpha/fork.S : Likewise. * sysdeps/unix/bsd/sun/m68k/vfork.S : Likewise. * sysdeps/unix/bsd/ultrix4/mips/vfork.S : Likewise. * sysdeps/unix/bsd/vax/vfork.S : Likewise. * sysdeps/unix/i386/fork.S : Likewise. * sysdeps/unix/mips/fork.S : Likewise. * sysdeps/unix/sparc/fork.S : Likewise. * sysdeps/unix/sparc/vfork.S : Likewise. * sysdeps/unix/sysv/linux/arm/vfork.S : Likewise. * sysdeps/unix/sysv/linux/cris/vfork.S : Likewise. * sysdeps/unix/sysv/linux/i386/vfork.S : Likewise. * sysdeps/unix/sysv/linux/ia64/fork.S : Likewise. * sysdeps/unix/sysv/linux/ia64/setjmp.S : Likewise. * sysdeps/unix/sysv/linux/ia64/vfork.S : Likewise. * sysdeps/unix/sysv/linux/m68k/vfork.S : Likewise. * sysdeps/unix/sysv/linux/sh/vfork.S : Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S : Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/setjmp.S : Likewise. * sysdeps/unix/sysv/linux/sparc/fork.S : Likewise. * sysdeps/unix/sysv/linux/sparc/vfork.S : Likewise. * sysdeps/unix/sysv/linux/x86_64/vfork.S : Likewise. * sysdeps/unix/fork.S : Likewise. * sysdeps/vax/bsd-_setjmp.S : Likewise. * sysdeps/x86_64/bsd-_setjmp.S : Likewise. * sysdeps/unix/sysv/linux/ia64/sysdep.h: Guard against multiple inclusion.
* Update.Ulrich Drepper2002-12-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * include/unistd.h: Add libc_hidden_proto for __fork and __vfork. * sysdeps/generic/fork.c: Add libc_hidden_def for __fork. * sysdeps/mach/hurd/fork.c: Likewise. * sysdeps/unix/sysv/aix/fork.c: Likewise. * sysdeps/unix/fork.S: Add __GI___fork alias. * sysdeps/unix/arm/fork.S: Likewise. * sysdeps/unix/bsd/osf/alpha/fork.S: Likewise. * sysdeps/unix/i386/fork.S: Likewise. * sysdeps/unix/mips/fork.S: Likewise. * sysdeps/unix/sparc/fork.S: Likewise. * sysdeps/unix/sysv/linux/ia64/fork.S: Likewise. * sysdeps/unix/sysv/linux/sparc/fork.S: Likewise. * sysdeps/unix/sysv/linux/syscalls.list: Likewise. * sysdeps/generic/vfork.c: Add libc_hidden_def for __vfork. * sysdeps/unix/bsd/hp/m68k/vfork.S: Add __GI___vfork alias. * sysdeps/unix/bsd/i386/vfork.S: Likewise. * sysdeps/unix/bsd/sun/m68k/vfork.S: Likewise. * sysdeps/unix/bsd/ultrix4/mips/vfork.S: Likewise. * sysdeps/unix/bsd/vax/vfork.S: Likewise. * sysdeps/unix/sparc/vfork.S: Likewise. * sysdeps/unix/sysv/linux/arm/vfork.S: Likewise. * sysdeps/unix/sysv/linux/cris/vfork.S: Likewise. * sysdeps/unix/sysv/linux/i386/vfork.S: Likewise. * sysdeps/unix/sysv/linux/ia64/vfork.S: Likewise. * sysdeps/unix/sysv/linux/m68k/vfork.S: Likewise. * sysdeps/unix/sysv/linux/sh/vfork.S: Likewise. * sysdeps/unix/sysv/linux/sparc/vfork.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/vfork.S: Likewise.
* Update.Ulrich Drepper2002-12-081-0/+1
| | | | | | 2002-12-08 Ulrich Drepper <drepper@redhat.com> * include/unistd.h: Declare __libc_close.
* * elf/rtld-Rules ($(objpfx)rtld-libc.a): Use $(verbose) in ar command.Roland McGrath2002-10-141-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * sysdeps/mach/hurd/getresuid.c: New file. * sysdeps/mach/hurd/getresgid.c: New file. * sysdeps/mach/hurd/setresuid.c: New file. * sysdeps/mach/hurd/setresgid.c: New file. * posix/unistd.h [__USE_GNU] (getresuid, getresgid, setresuid, setresgid): Declare them. * NEWS: Mention it. * include/unistd.h (__getresuid, __getresgid, __setresuid, __setresgid): Declare them, add libc_hidden_proto. * posix/Versions (libc: GLIBC_2.3.2): New set. Add getresuid, getresgid, setresuid, setresgid here. * Versions.def (libc): Define GLIBC_2.3.2 set. * sysdeps/generic/getresuid.c (__getresuid): Fix argument types. Add libc_hidden_def. * sysdeps/generic/getresgid.c (__getresgid): Likewise. * sysdeps/generic/setresgid.c: New file. * sysdeps/generic/setresuid.c: New file. * sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc] (sysdep_routines): Don't add getresuid and getresgid here. * sysdeps/unix/sysv/linux/arm/Makefile [$(subdir) = misc] (sysdep_routines): Don't add setresuid and setresgid here. * sysdeps/unix/sysv/linux/cris/Makefile: Likewise. * sysdeps/unix/sysv/linux/sh/Makefile: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/Makefile: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/Makefile: Likewise. * sysdeps/unix/sysv/linux/i386/Makefile: Likewise. * sysdeps/unix/sysv/linux/m68k/Makefile: Likewise. * posix/Makefile (routines): Add them all here instead. * sysdeps/unix/sysv/linux/i386/getresuid.c (getresuid): Renamed to __getresuid. Add libc_hidden_def for that, and weak alias to old name. * sysdeps/unix/sysv/linux/i386/getresgid.c (getresgid): Renamed to __getresgid. Add libc_hidden_def for that, and weak alias to old name. * sysdeps/unix/sysv/linux/i386/setresuid.c: Add libc_hidden_def. [! __NR_setresuid]: Include generic file. * sysdeps/unix/sysv/linux/i386/setresgid.c (setresgid): Renamed to __setresgid. Add libc_hidden_def for that, and weak alias to old name. [! __NR_setresuid]: Include generic file. * sysdeps/unix/sysv/linux/syscalls.list (setresuid, setresgid): Caller is - now, not EXTRA. * sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list (setresuid, setresgid, getresuid, getresgid): Likewise. * sysdeps/unix/sysv/linux/syscalls.list (getresuid, getresgid): Add these calls here. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove them here. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc] (sysdep_routines): Add setfsuid and setfsgid here. * sysdeps/unix/sysv/linux/arm/Makefile: Not here. * sysdeps/unix/sysv/linux/sparc/sparc32/Makefile: Likewise. * sysdeps/unix/sysv/linux/cris/Makefile: Likewise. * sysdeps/unix/sysv/linux/sh/Makefile: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/Makefile: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/Makefile: Likewise. * sysdeps/unix/sysv/linux/i386/Makefile: Likewise. * sysdeps/unix/sysv/linux/m68k/Makefile: Likewise. * hurd/errno.c: Renamed to ... * hurd/errno-loc.c: ... this. * hurd/Makefile (routines): errno -> errno-loc
* Update.Ulrich Drepper2002-09-171-1/+1
| | | | | | * include/libc-symbols.h: Change *hidden_proto macros to accept option parameters and pass those to the attribute definition. * include/unistd.h (_exit): Add __noreturn__ to libc_hidden_proto call.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-03 15:44:37 +0000