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* resolv: Add test coverage for ns_name_unpack, ns_name_ntopFlorian Weimer2017-04-044-0/+863
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* S390: Clobber also r14 in TLS_LD, TLS_GD macros on 31bit.Stefan Liebler2017-04-042-4/+11
| | | | | | | | | | | | | | | | | | This patch also clobbers r14 in TLS_LD, TLS_GD macros on 31bit. This ensures that r14 isn't used to save and restore r12 while r14 is clobbered by the bas-instruction. As note: r12 can't be added to clobber list as gcc would fail with: error: PIC register clobbered by ‘12’ in ‘asm’ For 64bit this fix was already done in 2004 in the commit b80af23ac6973e69df6cd23d221fa44fffb21e17. ChangeLog: * sysdeps/s390/s390-32/tls-macros.h (TLS_LD, TLS_GD): Clobber also r14.
* ChangeLog: fix BZ style to be consistent and match majority of existing codeMike Frysinger2017-04-034-24/+24
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* posix_spawn: use a larger min stack for -fstack-check [BZ #21253]Mike Frysinger2017-04-032-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | When glibc is built with -fstack-check, trying to use posix_spawn can lead to segfaults due to gcc internally probing stack memory too far. The new spawn API will allocate a minimum of 1 page, but the stack checking logic might probe a couple of pages. When it tries to walk them, everything falls apart. The gcc internal docs [1] state the default interval checking is one page. Which means we need two pages (the current one, and the next probed). No target currently defines it larger. Further, it mentions that the default minimum stack size needed to recover from an overflow is 4/8KiB for sjlj or 8/12KiB for others. But some Linux targets (like mips and ppc) go up to 16KiB (and some non-Linux targets go up to 24KiB). Let's create each child with a minimum of 32KiB slack space to support them all, and give us future breathing room. No test is added as existing ones crash. Even a simple call is enough to trigger the problem: char *argv[] = { "/bin/ls", NULL }; posix_spawn(NULL, "/bin/ls", NULL, NULL, argv, NULL); [1] https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gccint/Stack-Checking.html
* Call the right helper function when setting mallopt M_ARENA_MAX (BZ #21338)Wladimir J. van der Laan2017-04-012-1/+7
| | | | | | | | | | | | Fixes a typo introduced in commit be7991c0705e35b4d70a419d117addcd6c627319. This caused mallopt(M_ARENA_MAX) as well as the environment variable MALLOC_ARENA_MAX to not work as intended because it set the wrong internal parameter. [BZ #21338] * malloc/malloc.c: Call do_set_arena_max for M_ARENA_MAX instead of incorrect do_set_arena_test
* Fix condition for inclusion of math-finite.h for long doubleGabriel F. T. Gomes2017-03-313-2/+7
| | | | | | | | | | The condition for declaration of long double functions in math-finite.h was #ifdef __MATH_DECLARE_LDOUBLE before the macroization of this file. After the macroization, it was incorreclty changed to #if __MATH_DECLARE_LDOUBLE, which broke the build for arm. * math/math.h: Fix check for __MATH_DECLARE_LDOUBLE. * math/bits/math-finite.h: Likewise.
* fts: Fix symbol redirect for fts_set [BZ #21289]Slava Barinov2017-03-312-1/+6
| | | | | In a 32-bit environment with _FILE_OFFSET_BITS=64, the __REDIRECT macro combined with __THROW generates an invalid C++ declaration.
* Fix more test-errno issuesAdhemerval Zanella2017-03-302-2/+12
| | | | | | | | | | | | | | | | | | This patch fixes some test-errno-linux unexpected returns for the tested syscalls on some older kernels (I saw it on a Linux 3.8 on armv7l). Basically: - inotify_add_watch: Linux v3.8 (676a0675c) removed the test to check at least one valid bit in flags (to return EINVAL). It was later added back in v3.9 (04df32fa1). - quotactl: returns ENOSYS for kernels not configured with CONFIG_QUOTA. Checked on x86_64-linux-gnu and armv7l-linux-gnueabihf. * sysdeps/unix/sysv/linux/test-errno-linux.c (do_test): Handle non expected inotify_add_watch and quotactl return.
* Change return type in the declaration of __ieee754_rem_pio2lGabriel F. T. Gomes2017-03-303-2/+9
| | | | | | | | | | | | | The implementation of __ieee754_rem_pio2l in ldbl-128, ldbl-128ibm, and ldbl-96 return the type int32_t, whereas math_private.h declares it as returning int. This patch changes the declaration to match the declaration in thoses directories, as well as it changes the stub implementation in math/e_rem_pio2l.c, similarly. * math/e_rem_pio2l.c (__ieee754_rem_pio2l): Change return type to int32_t. * sysdeps/generic/math_private.h: Declare __ieee754_rem_pio2l as returning int32_t.
* Macroize inclusion of math-finite.hGabriel F. T. Gomes2017-03-303-387/+140
| | | | | | | | | | | | | | | This patch macroizes the declarations in math/bits/math-finite.h similarly to what math/bits/mathcalls.h does. For each floating-point type, the file is included once in math/math.h. This will reduce the amount of repetitive boilerplate required when adding float128 versions of these declarations. Tested for powerpc64le and s390x. * math/math.h: Include bits/math-finite.h once per floating-point type. * math/bits/math-finite.h: Macroize all declarations by floating-point type.
* Fix i686 memchr overflow calculation (BZ#21182)Adhemerval Zanella2017-03-293-1/+15
| | | | | | | | | | | | | | | | | | | | | | | This patch fixes the regression added by 23d2770 for final address overflow calculation. The subtraction of the considered size (16) at line 120 is at wrong place, for sizes less than 16 subsequent overflow check will not take in consideration an invalid size (since the subtraction will be negative). Also, the lea instruction also does not raise the carry flag (CF) that is used in subsequent jbe to check for overflow. The fix is to follow x86_64 logic from 3daef2c where the overflow is first check and a sub instruction is issued. In case of resulting negative size, CF will be set by the sub instruction and a NULL result will be returned. The patch also add similar tests reported in bug report. Checked on i686-linux-gnu and x86_64-linux-gnu. * string/test-memchr.c (do_test): Add BZ#21182 checks for address near end of a page. * sysdeps/i386/i686/multiarch/memchr-sse2.S (__memchr): Fix overflow calculation.
* Change TEST_NAME to memcpy to fix IFUNC testing of multiple versions.Steve Ellcey2017-03-282-2/+7
| | | | | * benchtests/bench-memcpy-random.c (TEST_NAME): Change to memcpy. (IMPL) Call with 1 instead of 0 as argument.
* Consolidate set* Linux implementationAdhemerval Zanella2017-03-2865-379/+176
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the Linux setegid, seteuid, setgid, setgroups, setregid, setresgid, setresuid, setreuid, and setuid implementation on default sysdeps/unix/sysv/linux/set*.c implementation. It basically removes all the architecture define implementations and add support for __NR_set*32 syscall on Linux default implementation. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/arm/setegid.c: Remove file. * sysdeps/unix/sysv/linux/arm/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setgid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/arm/setregid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setegid.c: Likewise. * sysdeps/unix/sysv/linux/i386/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setgid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/i386/setregid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setegid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setgid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setregid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setuid.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setegid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setgid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setregid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setegid.c: Likewise. * sysdeps/unix/sysv/linux/sh/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setgid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/sh/setregid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setgid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setregid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setuid.c: Likewise. * sysdeps/unix/sysv/linux/setegid.c (setegid): Use INLINE_SYSCALL_ERROR_RETURN_VALUE. * sysdeps/unix/sysv/linux/seteuid.c (seteuid): Likewise. * sysdeps/unix/sysv/linux/setgid.c (setgid): Use __NR_setgid32 if defined. * sysdeps/unix/sysv/linux/setgroups.c (setgroups): Use __NR_setgroups32 if defined. * sysdeps/unix/sysv/linux/setregid.c (__setregid): Use __NR_setregid32 if defined. * sysdeps/unix/sysv/linux/setresgid.c (__setresgid): Use __NR_setresgid32 is defined. * sysdeps/unix/sysv/linux/setresuid.c (__setresuid): Use __NR_setresuid32 if defined. * sysdeps/unix/sysv/linux/setreuid.c (__setreuid): Use __NR_setreuid32 if defined. * sysdeps/unix/sysv/linux/setuid.c (__setuid): Use __NR_setuid32 if defined.
* localedata: hu_HU: fix multiple sorting bugs (bug 18934)Egmont Koblinger2017-03-285-145/+716
| | | | | | | | | | | | | | | | Fix the incorrect sorting order of a digraph and its geminated variant, regression introduced by a faulty fix to bug 13547 in commit b008d4c85619a753e441d7f473ba8af0db400bd6. Fix two inconsistencies in sorting unusual capitalization of digraphs (bug #18587). Enable DIACRIT_FORWARD to work around bug #17750. Sort foreign accents after the Hungarian ones. Add extensive unittests containing all the examples from The Rules of Hungarian Orthography and many more, including explanatory comments.
* Define more termios.h macros unconditionally for alpha (bug 21277).Joseph Myers2017-03-272-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | termios.h should define IUCLC for UNIX98 and older XSI standards. The sysdeps/unix/sysv/linux/alpha version defines it only if __USE_MISC, so causing some conform/ tests to fail. Other versions define it unconditionally (I* being a reserved namespace for this header); the API should be consistent between architectures in the absence of a clear reason for it to differ (and given that a symbol is part of the API on two architectures, I don't see any reason for the feature test macros required ever to differ between those architectures), so this patch makes the alpha version define it unconditionally as well. Two non-POSIX macros alongside it, IMAXBEL and IUTF8, are also defined unconditionally on other architectures, so this patch makes them consistent by defining them unconditionally on alpha as well. Tested (compilation only) with build-many-glibcs.py. [BZ #21277] * sysdeps/unix/sysv/linux/alpha/bits/termios.h (IUCLC): Define unconditionally. (IMAXBEL): Likewise. (IUTF8): Likewise.
* [AArch64] Update libm-test-ulpsSzabolcs Nagy2017-03-272-80/+92
| | | | * sysdeps/aarch64/libm-test-ulps: Update.
* Actually add bench-memcpy-randomSiddhesh Poyarekar2017-03-261-0/+157
| | | | git-add and commit the benchmark that Wilco posted on the list.
* Update old tunables framework document/script.Sunyeop Lee2017-03-244-14/+21
| | | | | | | | | | | Since commit 8b9e9c3c0bae497ad5e2d0ae2f333f62feddcc12, security_level replaces is_secure. There were some old files need to be updated. 2017-03-23 Sunyeop Lee <sunyeop97@gmail.com> * README.tunables: Updated descriptions. * elf/dl-tunables.list: Fixed typo: SXID_NONE -> NONE. * scripts/gen-tunables.awk: Updated the code related to the commit.
* Add a new randomized memcpy test for copies up to 256 bytes. The distributionWilco Dijkstra2017-03-232-1/+6
| | | | | | | | | | of the size and alignment is based on a trace of SPEC2006. Instead of repeating the same copy over and over again like the existing tests, it times several thousand different copies to more accurately estimate the overhead of branch prediction. * benchtests/Makefile (string-benchset): Add memcpy-random. * benchtests/bench-memcpy-random.c: New file.
* Change the order of function attributes in printf.hTulio Magno Quites Machado Filho2017-03-232-2/+8
| | | | | | | | | | | ISO C++ section 8.3.5 [dcl.fct] requires exception specifications to appear before attribute specifiers in function declarations. This patch fixes issues reported by stdio-common/check-installed-headers-cxx. * stdio-common/printf.h (register_printf_modifier): Change the order of __wur and __THROW. (register_printf_type): Likewise.
* Update string tests to use the support test driver.Wainer dos Santos Moschetta2017-03-2346-95/+143
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replaced all imports of test-skeleton.c with support/test-driver.c. In some cases it was needed to adjust do_test to return int instead of static int since that is the method's signature expected by test-driver.c. Checked on x86_64. * string/test-string.h (TEST_FUNCTION): Use test_main instead of test_main (). (CMDLINE_PROCESS): Use function instead of defined macro. * debug/test-strcpy_chk.c: Import support/test-driver.c and also <suppport/support.h> to use set_fortify_handler(). * string/bug-envz1.c: Import support/test-driver.c instead of test-skeleton.c. * string/bug-strcoll2.c: Likewise. * string/bug-strtok1.c: Likewise. * string/stratcliff.c: Likewise. * string/test-ffs.c: Likewise. * string/test-memccpy.c: Likewise. * string/test-memchr.c: Likewise. * string/test-memcmp.c: Likewise. * string/test-memcpy.c: Likewise. * string/test-memmem.c: Likewise. * string/test-memmove.c: Likewise. * string/test-memrchr.c: Likewise. * string/test-memset.c: Likewise. * string/test-rawmemchr.c: Likewise. * string/test-strcasecmp.c: Likewise. * string/test-strcasestr.c: Likewise. * string/test-strcat.c: Likewise. * string/test-strchr.c: Likewise. * string/test-strcmp.c: Likewise. * string/test-strcpy.c: Likewise. * string/test-string.h: Likewise. * string/test-strlen.c: Likewise. * string/test-strncasecmp.c: Likewise. * string/test-strncat.c: Likewise. * string/test-strncmp.c: Likewise. * string/test-strncpy.c: Likewise. * string/test-strnlen.c: Likewise. * string/test-strpbrk.c: Likewise. * string/test-strrchr.c: Likewise. * string/test-strspn.c: Likewise. * string/test-strstr.c: Likewise. * string/tst-bswap.c: Likewise. * string/tst-cmp.c: Likewise. * string/tst-endian.c: Likewise. * string/tst-inlcall.c: Likewise. * string/tst-strcoll-overflow.c: Likewise. * string/tst-strfry.c: Likewise. * string/tst-strlen.c: Likewise. * string/tst-strtok.c: Likewise. * string/tst-strtok_r.c: Likewise. * string/tst-strxfrm.c: Likewise. * string/tst-strxfrm2.c: Likewise. * string/tst-svc.c: Likewise. * string/tst-svc2.c: Likewise.
* Another round of inclusion fixes for _ISOMAC testsuite.Zack Weinberg2017-03-225-5/+20
| | | | | | | | | * stdio-common/bug25.c: Include stdlib.h. * support/tst-support_format_dns_packet.c: Include stdio.h, stdlib.h, and string.h. * support/tst-support_record_failure.c: Include string.h. * support/tst-support_record_failure-2.sh: Adjust line number expectations and correct a typo in an error message.
* x86-64: Improve branch predication in _dl_runtime_resolve_avx512_opt [BZ #21258]H.J. Lu2017-03-213-6/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Skylake server, _dl_runtime_resolve_avx512_opt is used to preserve the first 8 vector registers. The code layout is if only %xmm0 - %xmm7 registers are used preserve %xmm0 - %xmm7 registers if only %ymm0 - %ymm7 registers are used preserve %ymm0 - %ymm7 registers preserve %zmm0 - %zmm7 registers Branch predication always executes the fallthrough code path to preserve %zmm0 - %zmm7 registers speculatively, even though only %xmm0 - %xmm7 registers are used. This leads to lower CPU frequency on Skylake server. This patch changes the fallthrough code path to preserve %xmm0 - %xmm7 registers instead: if whole %zmm0 - %zmm7 registers are used preserve %zmm0 - %zmm7 registers if only %ymm0 - %ymm7 registers are used preserve %ymm0 - %ymm7 registers preserve %xmm0 - %xmm7 registers Tested on Skylake server. [BZ #21258] * sysdeps/x86_64/dl-trampoline.S (_dl_runtime_resolve_opt): Define only if _dl_runtime_resolve is defined to _dl_runtime_resolve_sse_vex. * sysdeps/x86_64/dl-trampoline.h (_dl_runtime_resolve_opt): Fallthrough to _dl_runtime_resolve_sse_vex.
* Regenerate INSTALL.Joseph Myers2017-03-212-0/+10
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* Merge branch 'master' of ssh://sourceware.org/git/glibcThorsten Kukuk2017-03-212-1/+6
|\ | | | | | | | | Conflicts: ChangeLog
| * Fix failing test malloc/tst-interpose-nothread with GCC 7.Stefan Liebler2017-03-212-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The test malloc/tst-interpose-nothread fails on s390x if built with GCC 7 and glibc commit "Remove the str(n)dup inlines from string/bits/string2.h. Although inlining" (ae65d4f3c3995279ca458c460ebf8bab1885fa03) with output: error: free: 0x3fffdffa010: invalid allocation index: 0 (not less than 0) The destructor check_for_allocations in malloc/tst-interpose-aux.c is called twice. One time after the test-child-process has finished successfully and once after the test-parent-process finishes. During the latter invocation, allocation_index == 0. GCC 7 is now inlining the free function and calls unconditionally fail in get_header as header->allocation_index (type == size_t) is always >= allocation_index (= 0). Before the mentioned commit above, strdup was replaced by strlen, malloc and memcpy. The malloc call was also inlined and allocation_index was set to one. This patch moves the already existing compiler barrier before the invocation of free. ChangeLog: * malloc/tst-interpose-aux.c (check_for_allocations): Move compiler barrier before free.
* | Deprecate libnsl by default (only shared library will beThorsten Kukuk2017-03-2148-81/+300
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | build for backward compatibility, no linking possible) and disable building of libnss_compat, libnss_nis and libnss_nisplus, except --enable-obsolete-nsl option is given to configure. * config.h.in: Add LINK_OBSOLETE_NSL. * config.make.in: Add build-obsolete-nsl. * configure.ac: Add obsolete-nsl option. * include/libc-symbols.h: Define libnsl_hidden_nolink_def. * include/rpcsvc/yp.h: Add missing functions as libnsl_hidden_proto. * include/rpcsvc/nislib.h: Likewise. * include/rpcsvc/ypclnt.h: Likewise. * manual/install.texi: Document --enable-obsolete-nsl. * nis/Makefile: Build only libnsl by default (add build-obsolete-nsl). * nis/nis_add.c: Replace libnsl_hidden_def with libnsl_hidden_nolink_def. * nis/nis_addmember.c: Likewise. * nis/nis_call.c: Likewise. * nis/nis_clone_obj.c: Likewise. * nis/nis_defaults.c: Likeise. * nis/nis_domain_of_r.c: Likewise. * nis/nis_error.c: Likewise. * nis/nis_file.c: Likewise. * nis/nis_free.c: Likewise. * nis_local_names.c: Likewise. * nis/nis_lookup.c: Likewise. * nis/nis_modify.c: Likewise. * nis/nis_print.c: Likewise. * nis/nis_remove.c: Likewise. * nis/nis_table.c: Likewise. * nis/nis_util.c: Likewise. * nis/nis_xdr.c: Likewise. * nis/yp_xdr.c: Likewise. * nis/ypclnt.c: Likewise. * nis/ypupdate_xdr.c: Likewise. * nis/nis_checkpoint.c: Add libnsl_hidden_nolink_def to all functions. * nis/nis_clone_dir.c: Likewise. * nis/nis_clone_res.c: Likewise. * nis/nis_creategroup.c: Likewise. * nis/nis_destroygroup.c: Likewise. * nis/nis_domain_of.c: Likewise. * nis/nis_getservlist.c: Likewise. * nis/nis_ismember.c: Likewise. * nis/nis_mkdir.c: Likewise. * nis/nis_ping.c: Likewise. * nis/nis_print_group_entry.c: Likewise. * nis/nis_removemember.c: Likewise. * nis/nis_rmdir.c: Likewise. * nis/nis_server.c: Likewise. * nis/nis_subr.c: Likewise. * nis/nis_verifygroup.c: Likewise. Signed-off-by: Thorsten Kukuk <kukuk@suse.com>
* conformtest: Add x32 XFAILs for mq_attr element types (bug 21279).Joseph Myers2017-03-203-5/+15
| | | | | | | | | | | | | | | | | | POSIX specifies long as the type of elements of struct mq_attr. For x32, they are __syscall_slong_t (i.e. long long). This patch XFAILs the corresponding tests for x32 in the conformtest expectations (the bug should not be closed without an actual fix). Tested with build-many-glibcs.py. [BZ #21279] * sysdeps/unix/sysv/linux/x86_64/x32/Makefile [$(subdir) = conform] (conformtest-xfail-conds): Update comment. * conform/data/mqueue.h-data (mq_attr.mq_flags): XFAIL for x86_64-x32-linux. (mq_attr.mq_maxmsg): Likewise. (mq_attr.mq_msgsize): Likewise. (mq_attr.mq_curmsgs): Likewise.
* conformtest: Add mips XFAIL for struct stat st_rdev type (bug 21278).Joseph Myers2017-03-203-2/+9
| | | | | | | | | | | | | | MIPS o32 struct stat has the wrong type of st_rdev. This patch XFAILs that test in the conformtest expectations for this case (the bug should not be closed without an actual fix, however). Tested with build-many-glibcs.py. [BZ #21278] * sysdeps/unix/sysv/linux/mips/mips32/Makefile [$(subdir) = conform] (conformtest-xfail-conds): Update comment. * conform/data/sys/stat.h-data (stat.st_rdev): XFAIL for mips-o32-linux.
* Fix alpha termios.h NL2, NL3 namespace (bug 21268).Joseph Myers2017-03-202-2/+11
| | | | | | | | | | | | | | | sysdeps/unix/sysv/linux/alpha/bits/termios.h defines NL2 and NL3 for __USE_MISC || __USE_XOPEN. These should only be defined for __USE_MISC as they are not part of any standard namespace. This patch conditions them accordingly, matching the powerpc version of the header (the only other one in glibc that defines these macros). Tested (compilation only) with build-many-glibcs.py. [BZ #21268] * sysdeps/unix/sysv/linux/alpha/bits/termios.h (NL2): Define only if [__USE_MISC] (NL3): Likewise.
* posix_spawn: fix stack setup on ia64 [BZ #21275]Mike Frysinger2017-03-202-5/+14
| | | | | | | | | The ia64-specific clone2 call expects the base of the stack mapping and the stack size as sep arguments, not an initial stack value as on other stack-grows-down architectures. Reuse the stack-grows-up macro so we pass in the right stack base. Reported-by: Matt Turner <mattst88@gentoo.org>
* linux ttyname and ttyname_r: do not return wrong resultsChristian Brauner2017-03-194-8/+71
| | | | | | | | | | | | | If a link (say /proc/self/fd/0) pointing to a device, say /dev/pts/2, in a parent mount namespace is passed to ttyname, and a /dev/pts/2 exists (in a different devpts) in the current namespace, then it returns /dev/pts/2. But /dev/pts/2 is NOT the current tty, it is a different file and device. Detect this case and return ENODEV. Userspace can choose to take this as a hint that the fd points to a tty device but to act on the fd rather than the link. Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
* conformtest: XFAIL tv_nsec tests for x32 (bug 16437).Joseph Myers2017-03-186-4/+22
| | | | | | | | | | | | | | | | | This patch XFAILs the conformtest tv_nsec tests for x32 so that the incorrect type does not potentially hide other failures. As this is not a fix for the bug, it should remain open in Bugzilla. Tested (compilation only) with build-many-glibcs.py. [BZ #16437] * sysdeps/unix/sysv/linux/x86_64/x32/Makefile [$(subdir) = conform] (conformtest-xfail-conds): New variable. * conform/data/signal.h-data (timespec.tv_nsec): XFAIL for x86_64-x32-linux. * conform/data/sys/select.h-data (timespec.tv_nsec): Likewise. * conform/data/sys/stat.h-data (timespec.tv_nsec): Likewise. * conform/data/time.h-data (timespec.tv_nsec): Likewise.
* Fix sparc64 bits/setjmp.h namespace (bug 21261).Joseph Myers2017-03-183-21/+30
| | | | | | | | | | | | | | | | | | sysdeps/unix/sysv/linux/sparc/bits/setjmp.h defines 64-bit __jmp_buf with a load of identifiers that are not part of any standard namespace, resulting in conform/ tests failing. This patch fixes this by moving those identifiers to the implementation namespace, so enabling the conform/ tests to pass for sparc64. Tested (compilation only) for sparc64 with build-many-glibcs.py. [BZ #21261] * sysdeps/unix/sysv/linux/sparc/bits/setjmp.h [__WORDSIZE == 64 && !_ASM] (__sparc64_jmp_buf): Use reserved names for all fields. * sysdeps/sparc/sparc64/jmpbuf-unwind.h (_JMPBUF_UNWINDS): Update for jmp_buf field renaming. (_JMPBUF_UNWINDS_ADJ): Likewise.
* conformtest: Handle conditional XFAILs with allow-header.Joseph Myers2017-03-182-1/+6
| | | | | | | | | | | This patch fixes the conformtest handling of headers listed in allow-header to process xfail[cond]- in the expectations for those headers. Tested with build-many-glibcs.py. * conform/conformtest.pl: Handle xfail[cond]- in header mentioned with allow-header.
* Further harden glibc malloc metadata against 1-byte overflows.DJ Delorie2017-03-172-0/+7
| | | | | | | | | Additional check for chunk_size == next->prev->chunk_size in unlink() 2017-03-17 Chris Evans <scarybeasts@gmail.com> * malloc/malloc.c (unlink): Add consistency check between size and next->prev->size, to further harden against 1-byte overflows.
* Use CPU_FEATURES_CPU_P to check if AVX is availableH.J. Lu2017-03-172-2/+6
| | | | | | | Don't use bit_cpu_AVX directly. * sysdeps/x86/cpu-features.c (init_cpu_features): Check AVX with CPU_FEATURES_CPU_P.
* Make alpha termios.h define IXANY unconditionally (bug 21259).Joseph Myers2017-03-172-1/+5
| | | | | | | | | | | | | | | | | sysdeps/unix/sysv/linux/alpha/bits/termios.h defines IXANY only if __USE_MISC. But it's in the base standard for POSIX.1:2008, and XSI-shaded in previous standards. This patch makes the header define it unconditionally, like other versions of this header do (it's always reserved by standards that don't require it, so defining unconditionally is OK by the standards). Tested (compilation only) for alpha with build-many-glibcs.py. Note that there are still termios.h conformtest failures after this patch because of other issues with the alpha version of this header. [BZ #21259] * sysdeps/unix/sysv/linux/alpha/bits/termios.h (IXANY): Define unconditionally, not just for [__USE_MISC].
* conformtest: Add mips XFAIL for struct stat st_dev type (bug 17786).Joseph Myers2017-03-173-1/+11
| | | | | | | | | | | | | | | | As noted in bug 17786, MIPS o32 struct stat has the wrong type of st_dev. This patch XFAILs that test in the conformtest expectations for this case (the test still fails after the patch because there's also a similar issue for st_rdev that needs reporting and XFAILing separately, and the bug should not be closed without an actual fix, not just XFAILing). Tested for mips with build-many-glibcs.py. [BZ #17786] * sysdeps/unix/sysv/linux/mips/mips32/Makefile: New file. * conform/data/sys/stat.h-data (stat.st_dev): XFAIL for mips-o32-linux.
* Add missing piece to last ChangeLog entry.Joseph Myers2017-03-171-0/+1
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* conformtest: Add alpha XFAIL for struct netent n_net type (bug 21260).Joseph Myers2017-03-173-1/+11
| | | | | | | | | | | | | | As noted in bug 21260, sysdeps/unix/sysv/linux/alpha/bits/netdb.h defines struct netent with n_net of type unsigned long instead of the correct uint32_t. This patch XFAILs that test in the conformtest expectations for alpha. (This is not a fix for the bug, and it should not be closed without an actual fix.) Tested for alpha with build-many-glibcs.py. [BZ #21260] * sysdeps/unix/sysv/linux/alpha/Makefile [$(subdir) = conform] (conformtest-xfail-conds): New variable.
* conformtest: Skip execution tests when cross-compiling.Joseph Myers2017-03-173-2/+18
| | | | | | | | | | | | | | | | | | | | This patch makes conformtest skip execution tests when cross-compiling, as an interim step towards running most of these tests (presently disabled) in that case. It omits the (obvious) Makefile change to actually enable the conformtest tests when cross-compiling, as there are still enough failures seen with build-many-glibcs.py that I'd like to get the results cleaner before enabling these tests. Tested for x86_64, and with the tests actually enabled for cross-compilation with build-many-glibcs.py. * conform/conformtest.pl ($cross): New variable. (--cross): New command-line option. (runtest): Skip test execution when cross-compiling. * conform/Makefile (conformtest-cross): New variable. ($(conformtest-header-tests)): Pass $(conformtest-cross) to conformtest.pl.
* conformtest: Support system-specific XFAILs.Joseph Myers2017-03-173-2/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | conformtest has an internal XFAIL mechanism to allow failures of individual expectations to be ignored, so that known hard-to-fix failures (e.g. those affecting ABIs or requiring kernel changes) do not cause the overall tests to FAIL and so hide other failures from the same (header, standard) pair. Various such bugs are system-specific, so this patch adds a mechanism to allow system-specific XFAILs. A system-independent XFAIL is achieved by putting "xfail-" at the start of the relevant expectation in the *-data files. A system-specific XFAIL instead uses "xfail[cond]-", where "cond" is a condition listed in conformtest-xfail-conds in a sysdeps makefile (so one for x32 might set conformtest-xfail-conds = x86_64-x32-linux, for example, and then an expectation for tv_nsec's type could use xfail[x86_64-x32-linux]-). The actual names are arbitrary, just needing to match between the makefiles and the expectations, and if necessary you can use "xfail[cond1|cond2]-" for a test that is expected to fail under multiple conditions. As with system-independent XFAILs, I think system-specific ones should have a bug filed in Bugzilla and a comment referencing that bug. Tested for x86_64, including with test expectations and makefiles changed to use the new facility. * conform/conformtest.pl ($xfail_str): New variable. (--xfail=): New command-line option. (top level): Handle expectations starting xfail[cond]-. * conform/Makefile (conformtest-xfail): New variable. ($(conformtest-header-tests)): Pass $(conformtest-xfail) to conformtest.pl.
* conformtest: Make more tests into compilation tests.Joseph Myers2017-03-162-8/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | The conformtest header tests test some things through compilation tests and others through execution tests. This patch makes more of the tests into compilation tests, using _Static_assert (note: for float.h tests on floating-point values this is depending on a GNU extension, that those assertions are allowed in the absence of -pedantic although they aren't strictly integer constant expressions). The remaining execution tests are for values of things listed as "symbol" (in fact no such things have a value expectation listed) and for values of macros defined as string constants (three such values listed in total). This is intended as preparation for enabling the vast bulk of the tests to run for cross compilation. (Even the few remaining execution tests ought in principle to run for cross compilation when a test wrapper is defined, but that's more complicated. The existing execution tests for native builds in fact are linked and run with an existing installed libc that's required to exist to link against, rather than with the newly built libc; only the new headers are used.) Tested for x86_64. * conform/conformtest.pl: Use compilation instead of execution tests for testing values of constants and usability in #if.
* XFAIL catan and catanh tests on ibm128Tulio Magno Quites Machado Filho2017-03-164-1168/+1175
| | | | | | | | | | | | | | | Mark 4 catan and catanh tests as xfail-rounding:ibm128-libgcc. After this patch all catan and catanh tests pass on ibm128. Regenerated auto-libm-test-out using gmp 6.1.2, mpfr 3.1.5 and upstream mpc (9ef8030e50), Tested on powerpc, powerpc64 and powerpc64le. * math/auto-libm-test-in: Mark some catan and catanh as xfail-rounding:ibm128-libgcc. * math/auto-libm-test-out-catan: Regenerate. * math/auto-libm-test-out-catanh: Likewise.
* Remove C++ namespace handling from glibc headers.Joseph Myers2017-03-1625-411/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glibc headers include some code (not particularly consistent or systematic) to put various declarations in C++ namespaces std and __c99, if _GLIBCPP_USE_NAMESPACES is defined. As noted in <https://gcc.gnu.org/ml/libstdc++/2017-03/msg00025.html>, this macro was removed from libstdc++ in 2000. I don't expect compilation with such old versions of libstdc++ to work with current glibc headers anyway (whereas old *binaries* are expected to stay working with current glibc); this patch (which should be a no-op with any libstdc++ version postdating that removal) removes all this code from the glibc headers. The begin-end-check.pl test, whose comments say it is about checking these namespace macro calls, is also removed. The code in that test would have covered __BEGIN_DECLS / __END_DECLS as well, but if those weren't properly matched it would show up with the check-installed-headers-cxx tests, so I don't think there is an actual use for keeping begin-end-check.pl with the namespace code removed. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * misc/sys/cdefs.h (__BEGIN_NAMESPACE_STD): Remove macro. (__END_NAMESPACE_STD): Likewise. (__USING_NAMESPACE_STD): Likewise. (__BEGIN_NAMESPACE_C99): Likewise. (__END_NAMESPACE_C99): Likewise. (__USING_NAMESPACE_C99): Likewise. * math/math.h (_Mdouble_BEGIN_NAMESPACE): Do not define and undefine macro. (_Mdouble_END_NAMESPACE): Likewise. * ctype/ctype.h: Do not handle C++ namespaces. * libio/bits/stdio-ldbl.h: Likewise. * libio/stdio.h: Likewise. * locale/locale.h: Likewise. * math/bits/mathcalls.h: Likewise. * setjmp/setjmp.h: Likewise. * signal/signal.h: Likewise. * stdlib/bits/stdlib-float.h: Likewise. * stdlib/bits/stdlib-ldbl.h: Likewise. * stdlib/stdlib.h: Likewise. * string/string.h: Likewise. * sysdeps/x86/fpu/bits/mathinline.h: Likewise. * time/bits/types/clock_t.h: Likewise. * time/bits/types/struct_tm.h: Likewise. * time/bits/types/time_t.h: Likewise. * time/time.h: Likewise. * wcsmbs/bits/wchar-ldbl.h: Likewise. * wcsmbs/uchar.h: Likewise. * wcsmbs/wchar.h: Likewise. [_GLIBCPP_USE_NAMESPACES] (wint_t): Remove conditional definition. * wctype/wctype.h: Do not handle C++ namespaces. * scripts/begin-end-check.pl: Remove. * Makefile (installed-headers): Likewise. (tests-special): Do not add $(objpfx)begin-end-check.out. ($(objpfx)begin-end-check.out): Remove.
* Add ChangeLog entry for aarch64 ifunc support patch.Steve Ellcey2017-03-151-0/+12
| | | | Forgot to add ChangeLog entry.
* Add ifunc support for aarch64.Steve Ellcey2017-03-157-0/+205
| | | | | | | | | | | * sysdeps/aarch64/dl-machine.h: Include cpu-features.c. (DL_PLATFORM_INIT): New define. (dl_platform_init): New function. * sysdeps/aarch64/ldsodefs.h: Include cpu-features.h. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c: New file. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h: Likewise. * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/libc-start.c: Likewise.
* x86_64: fix static build of __mempcpy_chk for compilers defaulting to PIC/PIEMike Frysinger2017-03-152-1/+6
| | | | | | | | | | | | When glibc is compiled with gcc 6.2 that has been configured with to default to PIC/PIE, the static version of __mempcpy_chk is not built, as the test is done on PIC instead of SHARED. Fix the test to check for SHARED, like it is done for similar functions like __memcpy_chk. 2017-03-12 Mike Frysinger <vapier@gentoo.org> * sysdeps/x86_64/mempcpy_chk.S (__mempcpy_chk): Check for SHARED instead of PIC.
* Improve float range reduction accuracy near pi/2 (bug 21094).Joseph Myers2017-03-155-2/+595
| | | | | | | | | | | | | | | | | | | | | | | | | Bug 21094 reports 3ulp errors of cosf and tanf for certain arguments near pi/2 arising from the use of an insufficiently accurate range reduction. (To be clear, this is a quality-of-implementation issue relating to the apparent intent of those particular cosf and tanf implementations; 3ulp is within the general glibc accuracy goals, so not inherently a bug.) This patch fixes that error by making a wider range of cases use the existing more accurate range reduction for arguments close to pi/2. The wider range of values is still narrow enough for the "z -= pio2_2;" in the more accurate case to be exact, as the code expects. Tested for x86_64, x86 and mips64; no ulps updates needed (but at least on mips64, the larger ulps were seen if the tests were added without the substantive fix). [BZ #21094] * sysdeps/ieee754/flt-32/e_rem_pio2f.c (__ieee754_rem_pio2f): Use 24+24+24-bit pi for wider range of values around pi/2. * math/auto-libm-test-in: Add more tests of cos and tan. * math/auto-libm-test-out-cos: Regenerated. * math/auto-libm-test-out-tan: Likewise.
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