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* hurd: fix sigstate lockingSamuel Thibault2015-02-072-2/+6
| | | | | | | | | It looks like _hurd_thread_sigstate used to return with the sigstate lock held long ago, but since that's no longer the case, don't unlock something that isn't locked. Note that it's unlikely this change fixes anything in practice since its current implementation (on i386) makes this call a nop.
* hurdselect: Let select get interrupted by signalsSamuel Thibault2015-02-072-1/+6
| | | | | We need to set MACH_RCV_INTERRUPT to avoid __mach_msg just looping on signals, and then we can handle the interruption.
* hurd: map nice levels 1-to-1 with Mach prio levelsSamuel Thibault2015-02-072-2/+5
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* hurd: allow poll() array bigger than FD_SETSIZESamuel Thibault2015-02-072-1/+3
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* hurd: fix f?chflags prototypes, declare them and their flagsSamuel Thibault2015-02-076-7/+45
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* hurd: fix build with pthread aioSamuel Thibault2015-02-072-1/+9
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* ARM: Add missing sfi_breg in LDR_GLOBAL macro.Roland McGrath2015-02-062-2/+7
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* NPTL: Conditionalize some sanity tests for SIGCANCEL/SIGSETXID.Roland McGrath2015-02-063-0/+11
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* Conditionalize use of SIGRTMIN in nptl/tst-locale1.c.Roland McGrath2015-02-062-1/+7
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* Don't set unused field in rt/tst-timer2.Roland McGrath2015-02-062-2/+4
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* NPTL: Build tests using clone directly only for Linux.Roland McGrath2015-02-066-8/+24
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* Use signal rather than sigaction in nptl/tst-cleanup2.Roland McGrath2015-02-062-8/+6
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* Conditionalize some tests' use of SA_SIGINFO.Roland McGrath2015-02-064-2/+20
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* Do not use SA_NOCLDWAIT in tst-pselect.Roland McGrath2015-02-062-2/+3
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* Move tst-getlogin to login/ subdirectory.Roland McGrath2015-02-064-2/+7
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* Fix libio/tst-atime not to presume ST_NOATIME exists.Roland McGrath2015-02-062-3/+5
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* Fix dirent/tst-fdopendir not to presume O_NOATIME exists.Roland McGrath2015-02-062-0/+5
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* Fix nptl/tst-kill5 not to presume SIGRTMAX exists.Roland McGrath2015-02-062-1/+4
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* Clean up nptl/tst-join5 use of nanosleep.Roland McGrath2015-02-062-7/+11
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* Clean up NPTL system to be compat-only.Roland McGrath2015-02-062-8/+44
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* Clean up NPTL longjmp to be compat-only.Roland McGrath2015-02-062-6/+54
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* Clean up NPTL fork to be compat-only.Roland McGrath2015-02-063-4/+57
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* x86: Clean up __vdso_clock_gettime variable.Roland McGrath2015-02-067-232/+20
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* Exclude rpcent functions and NSS backends for rpc, key when excluding sunrpc.Roland McGrath2015-02-0613-12/+58
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* Clean up sysdep-dl-routines variable.Roland McGrath2015-02-0614-26/+33
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* NEWS: Fix spelling.Carlos O'Donell2015-02-061-1/+1
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* NEWS: Also mention CVE-2015-1473Florian Weimer2015-02-061-4/+5
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* soft-fp: Fix _FP_FMA when product is zero and third argument is finite (bug ↵Joseph Myers2015-02-065-0/+381
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 17932). soft-fp's _FP_FMA fails to set the result's exponent for cases where the result of the multiplication is 0, yielding incorrect (arbitrary, depending on uninitialized values) results for those cases. This affects libm for architectures using soft-fp to implement fma. This patch adds the exponent setting and tests for this case. Tested for ARM soft-float (which uses soft-fp fma), x86_64 and x86 (to verify not introducing new libm test failures there). (This bug showed up in testing my patch to move the Linux kernel to current soft-fp. math/Makefile has "override CFLAGS += -Wno-uninitialized" which would have stopped compiler warnings from showing up this problem, although I wouldn't be surprised if removing that shows spurious warnings from this code, if the compiler fails to follow that various cases where the exponent is uninitialized don't need it initialized because the class is set to a value meaning the uninitialized exponent isn't used.) [BZ #17932] * soft-fp/op-common.h (_FP_FMA): Set exponent of result in case where multiplication results in zero and third argument is finite and nonzero. * math/auto-libm-test-in: Add more tests of fma. * math/auto-libm-test-out: Regenerated.
* soft-fp: Refine FP_EX_DENORM handling for comparisons.Joseph Myers2015-02-062-4/+51
| | | | | | | | | | | | | | | | | | | | | | In <https://sourceware.org/ml/libc-alpha/2014-09/msg00488.html>, I noted that comparisons in soft-fp did not set FP_EX_DENORM unless denormal operands were flushed to zero. This patch fixes soft-fp to check for denormal operands for comparisons and set that exception whenever FP_EX_DENORM is not zero. In particular, for the one architecture for which the Linux kernel defines FP_EX_DENORM (alpha), this corresponds to the existing logic for comparisons and so allows that logic to be replaced by a simple call to FP_CMP_D when soft-fp is updated in the kernel. Tested for powerpc (e500) that installed stripped shared libraries are unchanged by this patch. * soft-fp/op-common.h (_FP_CMP_CHECK_DENORM): New macro. (_FP_CMP_CHECK_FLUSH_ZERO): Likewise. (_FP_CMP): Use_FP_CMP_CHECK_DENORM and _FP_CMP_CHECK_FLUSH_ZERO. (_FP_CMP_EQ): Likewise. (_FP_CMP_UNORD): Use _FP_CMP_CHECK_DENORM.
* soft-fp: Support floating-point extensions without quieting sNaNs.Joseph Myers2015-02-062-4/+16
| | | | | | | | | | | | | | | | | | | | | | | One special case needed in soft-fp to replace the old version in the Linux kernel is extending from a narrower floating-point format to a wider one without quieting signaling NaNs. (This is for arch/powerpc/math-emu/lfs.c, where previously it used the old FP_CONV which didn't do anything special for NaNs, then handled packing specially for NaNs to avoid quieting at packing time, and discarded the exceptions from unpacking.) This patch accordingly refactors FP_EXTEND, creating a separate _FP_EXTEND_CNAN that offers a choice of how NaNs are handled, with FP_EXTEND reimplemented as a wrapper that provides the common case of the IEEE operation that does quiet signaling NaNs and raise exceptions for them. Tested for powerpc (e500) that installed stripped shared libraries are unchanged by this patch. * soft-fp/op-common.h (FP_EXTEND): Rename to _FP_EXTEND_CNAN with extra argument CHECK_NAN. Redefine as wrapper around _FP_EXTEND_CNAN.
* Fix missing ChangeLog attribution.Carlos O'Donell2015-02-061-0/+1
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* Open development for 2.22. glibc-2.21.90Carlos O'Donell2015-02-061-2/+2
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* Update version.h and include/features.h for 2.21 release glibc-2.21Carlos O'Donell2015-02-063-3/+7
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* hppa: Sync with pthread.h.Carlos O'Donell2015-02-062-1/+1150
| | | | | | | | This reverts part of the previous commit to refactor pthread.h. The refactoring must be done by having pthread.h include arch bits headers, not the other way around. Then hppa provides the arch bits header. For now we synchronzie again with pthread.h and include the entire contents in the hppa copy.
* CVE-2015-1472: wscanf allocates too little memoryPaul Pluzhnikov2015-02-064-15/+62
| | | | | | | | | | | BZ #16618 Under certain conditions wscanf can allocate too little memory for the to-be-scanned arguments and overflow the allocated buffer. The implementation now correctly computes the required buffer size when using malloc. A regression test was added to tst-sscanf.
* glibc 2.21 pre-release update.Carlos O'Donell2015-02-0540-46505/+67618
| | | | | | | | | | | | Update all translations. Update contributions in the manual. Update installation notes with information about newest working tools. Reconfigure using exactly autoconf 2.69. Regenerate INSTALL.
* hppa: Remove warnings and fix conformance errors.Carlos O'Donell2015-02-0514-1212/+151
| | | | | | | | | | | | | | | | | (1) Fix warnings. This is a bulk update to fix all the warnings that were causing build failures with -Werror on hppa. The most egregious problems are in dl-fptr.c which needs to be entirely rewritten, thus I've used -Wno-error for that. (2) Fix conformance errors. The sysdep.c file had __syscall_error and syscall in one file which caused conformance issues by including syscall when __syscall_error was linked to. The fix is obviously to split the file and use syscall.c to implement syscall.
* Function name typo error in non-PIC case, fixed in this patch.Chung-Lin Tang2015-02-052-1/+6
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* Fix two bugs in sparc atomics.David S. Miller2015-01-312-7/+14
| | | | | | | | * sysdeps/sparc/sparc32/bits/atomic.h (__sparc32_atomic_do_unlock24): Put the memory barrier before the unlock not after it. (__v9_compare_and_exchange_val_32_acq): Use unions to avoid getting volatile register usage warnings from the compiler.
* Fix sparc semaphore implementation after recent changes.David S. Miller2015-01-3118-703/+692
| | | | | | | | | | | | | | | | | | | | | | | | * sysdeps/sparc/nptl/sem_init.c: Delete. * sysdeps/sparc/nptl/sem_post.c: Delete. * sysdeps/sparc/nptl/sem_timedwait.c: Delete. * sysdeps/sparc/nptl/sem_wait.c: Delete. * sysdeps/sparc/sparc32/sem_init.c: New file. * sysdeps/sparc/sparc32/sem_waitcommon.c: New file. * sysdeps/sparc/sparc32/sem_open.c: Generic nptl version with padding explicitly initialized. * sysdeps/sparc/sparc32/sem_post.c: Generic nptl version using padding for in-semaphore spinlock. * sysdeps/sparc/sparc32/sem_wait.c: Likewise. * sysdeps/sparc/sparc32/sem_trywait.c: Delete. * sysdeps/sparc/sparc32/sem_timedwait.c: Delete. * sysdeps/sparc/sparc32/sparcv9/sem_init.c: New file. * sysdeps/sparc/sparc32/sparcv9/sem_open.c: New file. * sysdeps/sparc/sparc32/sparcv9/sem_post.c: New file. * sysdeps/sparc/sparc32/sparcv9/sem_waitcommon.c: New file. * sysdeps/sparc/sparc32/sparcv9/sem_wait.c: Redirect to nptl version. * sysdeps/sparc/sparc32/sparcv9/sem_timedwait.c: Delete. * sysdeps/sparc/sparc32/sparcv9/sem_trywait.c: Delete.
* Use AVX unaligned memcpy only if AVX2 is availableH.J. Lu2015-01-3010-10/+37
| | | | | | | | | | | | | | | | | | | | | | memcpy with unaligned 256-bit AVX register loads/stores are slow on older processorsl like Sandy Bridge. This patch adds bit_AVX_Fast_Unaligned_Load and sets it only when AVX2 is available. [BZ #17801] * sysdeps/x86_64/multiarch/init-arch.c (__init_cpu_features): Set the bit_AVX_Fast_Unaligned_Load bit for AVX2. * sysdeps/x86_64/multiarch/init-arch.h (bit_AVX_Fast_Unaligned_Load): New. (index_AVX_Fast_Unaligned_Load): Likewise. (HAS_AVX_FAST_UNALIGNED_LOAD): Likewise. * sysdeps/x86_64/multiarch/memcpy.S (__new_memcpy): Check the bit_AVX_Fast_Unaligned_Load bit instead of the bit_AVX_Usable bit. * sysdeps/x86_64/multiarch/memcpy_chk.S (__memcpy_chk): Likewise. * sysdeps/x86_64/multiarch/mempcpy.S (__mempcpy): Likewise. * sysdeps/x86_64/multiarch/mempcpy_chk.S (__mempcpy_chk): Likewise. * sysdeps/x86_64/multiarch/memmove.c (__libc_memmove): Replace HAS_AVX with HAS_AVX_FAST_UNALIGNED_LOAD. * sysdeps/x86_64/multiarch/memmove_chk.c (__memmove_chk): Likewise.
* Include <signal.h> in sysdeps/nptl/allocrtsig.cAndreas Schwab2015-01-292-0/+5
| | | | | Architectures which don't use hp-timing-common.h don't include <signal.h> via <sys/param.h>.
* Fix up ChangeLog formattingSiddhesh Poyarekar2015-01-291-12/+12
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* Initialize nscd stats data [BZ #17892]Siddhesh Poyarekar2015-01-293-1/+8
| | | | | | | | | | | | | | | | | | | | | | | The padding bytes in the statsdata struct are not initialized, due to which valgrind throws a warning: ==11384== Memcheck, a memory error detector ==11384== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al. ==11384== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info ==11384== Command: nscd -d ==11384== Fri 25 Apr 2014 10:34:53 AM CEST - 11384: handle_request: request received (Version = 2) from PID 11396 Fri 25 Apr 2014 10:34:53 AM CEST - 11384: GETSTAT ==11384== Thread 6: ==11384== Syscall param socketcall.sendto(msg) points to uninitialised byte(s) ==11384== at 0x4E4ACDC: send (in /lib64/libpthread-2.12.so) ==11384== by 0x11AF6B: send_stats (in /usr/sbin/nscd) ==11384== by 0x112F75: nscd_run_worker (in /usr/sbin/nscd) ==11384== by 0x4E439D0: start_thread (in /lib64/libpthread-2.12.so) ==11384== by 0x599AB6C: clone (in /lib64/libc-2.12.so) ==11384== Address 0x15708395 is on thread 6's stack Fix the warning by initializing the structure.
* Clarify math/README.libm-test. Add "How to read the test output."Martin Sebor2015-01-282-14/+71
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* tilegx32: set __HAVE_64B_ATOMICS to 0Chris Metcalf2015-01-282-1/+14
| | | | | | This is because of alignment issues in the sem_t support. tilegx32 does in fact support 64-bit atomics and we will need to revisit this after the 2.21 freeze.
* Disable 64-bit atomics for MIPS n32.Joseph Myers2015-01-282-1/+6
| | | | | | | | | | | | | | | | | | This patch disables use of 64-bit atomics for MIPS n32 to fix the problems with unaligned semaphores. Before 64-bit atomics are used for anything for which such alignment issues do not arise, and before the addition of any new ILP32 ports with 64-bit semaphores for which the ABI can be set to have the greater alignment (AARCH64?), a better approach will need to be established that allows architectures to declare their 64-bit atomics availability accurately, without doing so causing inappropriate use of such atomics on unaligned semaphores. Tested for MIPS n32 that this fixes the nptl/tst-sem3 failure. * sysdeps/mips/bits/atomic.h [_MIPS_SIM == _ABIN32] (__HAVE_64B_ATOMICS): Define to 0.
* powerpc: Fix fesetexceptflag [BZ#17885]Adhemerval Zanella2015-01-283-2/+6
| | | | | | | | | This patch fixes a bug introduced by 18f2945ae9216cfc, where it optimizes the FPSCR set by just issuing a mtfs instruction if new flag is different from older one. The issue is a typo, where the new flag should the the new value, instead of the old one. It fixes BZ#17885.
* powerpc: Fix fsqrt build in libm [BZ#16576]Adhemerval Zanella2015-01-287-111/+50
| | | | | | | | | | Some powerpc64 processors (e5500 core for instance) does not provide the fsqrt instruction, however current check to use in math_private.h is __WORDSIZE and _ARCH_PWR4 (ISA 2.02). This is patch change it to use the compiler flag _ARCH_PPCSQ (which is the same condition GCC uses to decide whether to generate fsqrt instruction). It fixes BZ#16576.
* iconv: Suppress array out of bounds warning.Andreas Krebbel2015-01-272-1/+12
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