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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 Myers2015-02-061-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* CVE-2015-1472: wscanf allocates too little memoryPaul Pluzhnikov2015-02-061-9/+15
| | | | | | | | | | | 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.
* Use AVX unaligned memcpy only if AVX2 is availableH.J. Lu2015-01-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | 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.
* Initialize nscd stats data [BZ #17892]Siddhesh Poyarekar2015-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | 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.
* powerpc: Fix fesetexceptflag [BZ#17885]Adhemerval Zanella2015-01-281-1/+1
| | | | | | | | | 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 Zanella2015-01-281-9/+9
| | | | | | | | | | 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.
* Fix segmentation fault when LD_LIBRARY_PATH contains only non-existings pathsBram2015-01-251-9/+9
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* powerpc: Fix powerpc64 build failure with binutils 2.22Adhemerval Zanella2015-01-241-1/+1
| | | | | | | | | | | | | | GLIBC memset optimization for POWER8 uses the '.machine power8' directive, which is only supported officially on binutils 2.24+. This causes a build failure on older binutils. Since the requirement of .machine power8 is to correctly assembly the 'mtvsrd' instruction and it is already handled by the MTVSRD_V1_R4 macro, there is no really needed of using it. The patch replaces the power8 with power7 for .machine directive. It fixes BZ#17869.
* powerpc: Fix ifuncmain6pie failure with GCC 4.9Adhemerval Zanella2015-01-241-1/+1
| | | | | | | | | | | This patch fix the elf/ifuncmain6pie failure when building with GCC 4.9+. For some reason, the compiler removes the branch taken code at resolve_ifunc (sysdeps/powerpc/powerpc64/dl-machine.h) as dead-code and thus the testcase fails because the ifunc resolves branches to an invalid memory location. It fixes by explicit adding a dependency of value based on odp variable to avoid compiler optimization. It fixes BZ#17868.
* Use uint64_t and (uint64_t) 1 for 64-bit intH.J. Lu2015-01-231-1/+1
| | | | | | | | | | | | | | | This patch replaces unsigned long int and 1UL with uint64_t and (uint64_t) 1 to support ILP32 targets like x32. [BZ #17870] * nptl/sem_post.c (__new_sem_post): Replace unsigned long int with uint64_t. * nptl/sem_waitcommon.c (__sem_wait_cleanup): Replace 1UL with (uint64_t) 1. (__new_sem_wait_slow): Replace unsigned long int with uint64_t. Replace 1UL with (uint64_t) 1. * sysdeps/nptl/internaltypes.h (new_sem): Replace unsigned long int with uint64_t.
* BZ #16418: Fix powerpc get_clockfreq racinessAdhemerval Zanella2015-01-211-9/+9
| | | | | | | | This patch fix powerpc __get_clockfreq racy and cancel-safe issues by dropping internal static cache and by using nocancel file operations. The vDSO failure check is also removed, since kernel code does not return an error (it cleans cr0.so bit on function return) and the static code (to read value /proc) now uses non-cancellable calls.
* Fix recursive dlopen.Carlos O'Donell2015-01-211-3/+4
| | | | | | | | | | | | | | | | | | | The ability to recursively call dlopen is useful for malloc implementations that wish to load other dynamic modules that implement reentrant/AS-safe functions to use in their own implementation. Given that a user malloc implementation may be called by an ongoing dlopen to allocate memory the user malloc implementation interrupts dlopen and if it calls dlopen again that's a reentrant call. This patch fixes the issues with the ld.so.cache mapping and the _r_debug assertion which prevent this from working as expected. See: https://sourceware.org/ml/libc-alpha/2014-12/msg00446.html
* Fix semaphore destruction (bug 12674).Carlos O'Donell2015-01-211-9/+16
| | | | | | | | | | | | | This commit fixes semaphore destruction by either using 64b atomic operations (where available), or by using two separate fields when only 32b atomic operations are available. In the latter case, we keep a conservative estimate of whether there are any waiting threads in one bit of the field that counts the number of available tokens, thus allowing sem_post to atomically both add a token and determine whether it needs to call futex_wake. See: https://sourceware.org/ml/libc-alpha/2014-12/msg00155.html
* Commit nios2 port to master.Chung-Lin Tang2015-01-171-0/+2
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* S390: Get rid of linknamespace failures for utmp functions.Stefan Liebler2015-01-161-1/+1
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* S390: Get rid of linknamespace failures for string functions.Stefan Liebler2015-01-161-1/+1
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* powerpc: Optimized strncmp for POWER8/PPC64Adhemerval Zanella2015-01-131-2/+2
| | | | | | | | | | This patch adds an optimized POWER8 strncmp. The implementation focus on speeding up unaligned cases follwing the ideas of power8 strcmp. The algorithm first check the initial 16 bytes, then align the first function source and uses unaligned loads on second argument only. Aditional checks for page boundaries are done for unaligned cases (where sources alignment are different).
* powerpc: Optimized strcmp for POWER8/PPC64Adhemerval Zanella2015-01-131-1/+2
| | | | | | | This patch adds an optimized POWER8 strcmp using unaligned accesses. The algorithm first check the initial 16 bytes, then align the first function source and uses unaligned loads on second argument only. Aditional checks for page boundaries are done for unaligned cases
* powerpc: Optimized st{r,p}ncpy for POWER8/PPC64Adhemerval Zanella2015-01-131-1/+2
| | | | | | | | | | | | | This patch adds an optimized POWER8 st{r,p}ncpy using unaligned accesses. It shows 10%-80% improvement over the optimized POWER7 one that uses only aligned accesses, specially on unaligned inputs. The algorithm first read and check 16 bytes (if inputs do not cross a 4K page size). The it realign source to 16-bytes and issue a 16 bytes read and compare loop to speedup null byte checks for large strings. Also, different from POWER7 optimization, the null pad is done inline in the implementation using possible unaligned accesses, instead of realying on a memset call. Special case is added for page cross reads.
* powerpc: Optimized st{r,p}cpy for POWER8/PPC64Adhemerval Zanella2015-01-131-0/+2
| | | | | | | | | | | | This patch adds an optimized POWER8 strcpy using unaligned accesses. For strings up to 16 bytes the implementation first calculate the string size, like strlen, and issues a memcpy. For larger strings, source is first aligned to 16 bytes and then tested over a loop that reads 16 bytes am combine the cmpb results for speedup. Special case is added for page cross reads. It shows 30%-60% improvement over the optimized POWER7 one that uses only aligned accesses.
* Fix memory handling in strxfrm_l [BZ #16009]Leonhard Holz2015-01-131-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [Modified from the original email by Siddhesh Poyarekar] This patch solves bug #16009 by implementing an additional path in strxfrm that does not depend on caching the weight and rule indices. In detail the following changed: * The old main loop was factored out of strxfrm_l into the function do_xfrm_cached to be able to alternativly use the non-caching version do_xfrm. * strxfrm_l allocates a a fixed size array on the stack. If this is not sufficiant to store the weight and rule indices, the non-caching path is taken. As the cache size is not dependent on the input there can be no problems with integer overflows or stack allocations greater than __MAX_ALLOCA_CUTOFF. Note that malloc-ing is not possible because the definition of strxfrm does not allow an oom errorhandling. * The uncached path determines the weight and rule index for every char and for every pass again. * Passing all the locale data array by array resulted in very long parameter lists, so I introduced a structure that holds them. * Checking for zero src string has been moved a bit upwards, it is before the locale data initialization now. * To verify that the non-caching path works correct I added a test run to localedata/sort-test.sh & localedata/xfrm-test.c where all strings are patched up with spaces so that they are too large for the caching path.
* Fix ldbl-96 scalblnl underflowing results (bug 17803).Joseph Myers2015-01-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | The ldbl-96 implementation of scalblnl (used for x86_64 and ia64) uses a condition k <= -63 to determine when a standard underflowing result tiny*__copysignl(tiny,x) should be returned. However, that condition corresponds to values with exponent -16446 or less, and in the case of -16446, the correct result for round-to-nearest depends on whether the value is exactly 0x1p-16446 (half the least subnormal) or more than that. This patch fixes the bug by changing the condition to k <= -64 and accordingly adjusting the exponent by 64 not 63 when converting to a normal value. Tested for x86_64. [BZ #17803] * sysdeps/ieee754/ldbl-96/s_scalblnl.c (twom63): Rename to twom64. Adjust value to 0x1p-64L. (__scalblnl): Only return standard underflowing result for K <= -64 not K <= -63; adjust exponent for underflowing result by 64 not 63. * math/libm-test.inc (scalbn_test_data): Add more tests. (scalbln_test_data): Likewise.
* Fix ldbl-96 scalblnl for subnormal arguments (bug 17834).Joseph Myers2015-01-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | The ldbl-96 implementation of scalblnl (used for x86_64 and ia64) is incorrect for subnormal arguments (this is a separate bug from bug 17803, which is about underflowing results). There are two problems with the adjustments of subnormal arguments: the "two63" variable multiplied by is actually 0x1p52L not 0x1p63L, so is insufficient to make values normal, and then GET_LDOUBLE_EXP(es,x), used to extract the new exponent, extracts it into a variable that isn't used, while the value taken to by the new exponent is wrongly taken from the high part of the mantissa before the adjustment (hx). This patch fixes both those problems and adds appropriate tests. Tested for x86_64. [BZ #17834] * sysdeps/ieee754/ldbl-96/s_scalblnl.c (two63): Change value to 0x1p63L. (__scalblnl): Get new exponent of adjusted subnormal value from ES not HX. * math/libm-test.inc (scalbn_test_data): Add more tests. (scalbln_test_data): Likewise.
* powerpc: Add the lock elision using HTMAdhemerval Zanella2015-01-121-0/+7
| | | | | | | | | | | | This patch adds support for lock elision using ISA 2.07 hardware transactional memory instructions for pthread_mutex primitives. Similar to s390 version, the for elision logic defined in 'force-elision.h' is only enabled if ENABLE_LOCK_ELISION is defined. Also, the lock elision code should be able to be built even with a compiler that does not provide HTM support with builtins. However I have noted the performance is sub-optimal due scheduling pressures.
* Remove 17581 from NEWSAndreas Schwab2015-01-121-6/+6
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* MicroBlaze: Fix BZ17791 - Remove fixed page size macros and othersMatthew Fortune2015-01-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | Microblaze apparently has a variable page size (see thread below) and should not hard-code any page-size related macros. Also remove macros that are only used for BFD's trad-core support which is not relavant for microblaze also according to the thread starting here: https://sourceware.org/ml/libc-ports/2013-11/msg00028.html This patch is neither built nor tested but mirrors a MIPS patch that fixes the same issue. Thanks, Matthew * sysdepsysdeps/unix/sysv/linux/microblaze/sys/user.h (PAGE_SHIFT, PAGE_SIZE, PAGE_MASK, NBPG, UPAGES): Remove. (HOST_TEXT_START_ADDR, HOST_STACK_END_ADDR): Remove. Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
* NEWS for MIPS ABIsMatthew Fortune2015-01-081-0/+20
| | | | * NEWS: Announce support for new MIPS ABI extensions.
* Fix libm feupdateenv namespace (bug 17748).Joseph Myers2015-01-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Concluding the fixes for C90 libm functions calling C99 fe* functions, this patch fixes the case of feupdateenv by making it a weak alias for __feupdateenv and making the affected code call __feupdateenv. Tested for x86_64 (testsuite, and that installed stripped shared libraries are unchanged by the patch). Also tested for ARM (soft-float) that the math.h linknamespace tests now pass. [BZ #17748] * include/fenv.h (__feupdateenv): Use libm_hidden_proto. * math/feupdateenv.c (__feupdateenv): Use libm_hidden_def. * sysdeps/aarch64/fpu/feupdateenv.c (feupdateenv): Rename to __feupdateenv and define as weak alias of __feupdateenv. Use libm_hidden_weak. * sysdeps/alpha/fpu/feupdateenv.c (__feupdateenv): Use libm_hidden_def. * sysdeps/arm/feupdateenv.c (feupdateenv): Rename to __feupdateenv and define as weak alias of __feupdateenv. Use libm_hidden_weak. * sysdeps/hppa/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/i386/fpu/feupdateenv.c (__feupdateenv): Use libm_hidden_def. * sysdeps/ia64/fpu/feupdateenv.c (feupdateenv): Rename to __feupdateenv and define as weak alias of __feupdateenv. Use libm_hidden_weak. * sysdeps/m68k/fpu/feupdateenv.c (__feupdateenv): Use libm_hidden_def. * sysdeps/mips/fpu/feupdateenv.c (feupdateenv): Rename to __feupdateenv and define as weak alias of __feupdateenv. Use libm_hidden_weak. * sysdeps/powerpc/fpu/feupdateenv.c (__feupdateenv): Use libm_hidden_def. * sysdeps/powerpc/nofpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/powerpc/powerpc32/e500/nofpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/s390/fpu/feupdateenv.c (feupdateenv): Rename to __feupdateenv and define as weak alias of __feupdateenv. Use libm_hidden_weak. * sysdeps/sh/sh4/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/sparc/fpu/feupdateenv.c (__feupdateenv): Use libm_hidden_def. * sysdeps/tile/math_private.h (__feupdateenv): New inline function. * sysdeps/x86_64/fpu/feupdateenv.c (__feupdateenv): Use libm_hidden_def. * sysdeps/generic/math_private.h (default_libc_feupdateenv): Call __feupdateenv instead of feupdateenv. (default_libc_feupdateenv_test): Likewise. (libc_feresetround_ctx): Likewise.
* AArch64: Optimized implementations of strcpy and stpcpy.Richard Earnshaw2015-01-071-2/+2
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* AArch64 optimized implementation of strrchr.Richard Earnshaw2015-01-071-2/+3
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* setenv fix memory leak when setting large, duplicate string (BZ #17658)Eric Biggers2015-01-071-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | glibc maintains a binary tree of environment strings it malloc()ed itself. However, it's possible for it to malloc() a string, then find that an identical string is already in the tree. In this case, the memory is leaked and is not freed if the application later calls __libc_freeres(). Fix this by freeing 'new_value' when it's unneeded. Test case: #include <stdlib.h> #include <string.h> int main() { char *p = calloc(100000, 1); memset(p, 'A', 99999); setenv("TESTVAR", p, 1); setenv("TESTVAR", p, 1); free(p); } Leak that was reported by valgrind: 100,008 bytes in 1 blocks are definitely lost in loss record 1 of 1 at 0x4C29F90: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) by 0x4E6B3D4: __add_to_environ (setenv.c:176) by 0x4C31B8F: setenv (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) by 0x400642: main (in /mnt/tmpfs/a.out)
* Fix incorrect mount table entry parsing in __getmntent_rVladimir A. Nazarenko2015-01-061-7/+7
| | | | | | | | | When mount entry contains only four fields and have more then one space or tab at the and, mp.mnt_freq and mp.mnt_passno will be set to some specific values as side effect from parsing of previus mount entry. It is because sscanf(""," %d %d ", &a, &b) returns -1, but this case is unprocessed. Values of mp.mnt_freq and mp.mnt_passno stays unchanged. This patch is attempt to fix described issue by removing trailing tabs and spaces.
* Mention bug fix for BZ #17806H.J. Lu2015-01-061-1/+2
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* Define CLOCKS_PER_SEC type to the type clock_tH.J. Lu2015-01-061-1/+1
| | | | | | | | | | | | | | C99 specifies that CLOCKS_PER_SEC is an expression with the type clock_t. This patch adds a generic <bits/time2.h> to define CLOCKS_PER_SEC and provides the Linux/x86-64 version of <bits/time2.h> to support x32. [BZ #17797] * bits/time.h (CLOCKS_PER_SEC): Changed to ((clock_t) 1000000). * sysdeps/unix/sysv/linux/bits/time.h (CLOCKS_PER_SEC): Likewise. * sysdeps/unix/sysv/linux/clock.c (clock): _Static_assert CLOCKS_PER_SEC == 1000000. * time/clocktest.c (main): Replace %ld with %jd and cast to intmax_t.
* Fix MIPS n64 posix_fadvise namespace (bug 17796).Joseph Myers2015-01-051-1/+1
| | | | | | | | | | | | | | | | sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise.c defines posix_fadvise64 as a strong alias for posix_fadvise (for !SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) - i.e., for static linking, which is the case when this matters), but it should be a weak alias. This patch makes it a weak alias. Tested for MIPS that this fixes the observed linknamespace test failures. [BZ #17796] * sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise.c [!SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)] (posix_fadvise64): Define as weak alias not strong alias.
* Fix ARM posix_fadvise64 namespace (bug 17793).Joseph Myers2015-01-051-1/+1
| | | | | | | | | | | | | | ARM posix_fadvise calls __posix_fadvise64_l64, to which posix_fadvise64 is a strong alias, but posix_fadvise is a POSIX function and posix_fadvise64 isn't. This patch changes it into a weak alias. Tested for ARM that this fixes the corresponding linknamespace test failures. [BZ #17793] * sysdeps/unix/sysv/linux/arm/posix_fadvise64.c (posix_fadvise64): Define as weak alias not strong alias.
* Fix isblank / isascii / toascii namespace (bug 17635).Joseph Myers2015-01-051-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use of isblank brings in isascii and toascii, but isblank is a C99 function and the other two aren't; similarly, isascii and toascii are UNIX98 functions and bring in isblank, which isn't. (Not a conformance issue because of the is* and to* reservation, but still contrary to glibc practice.) This patch fixes this by splitting isblank out of ctype-extn.c to a separate ctype-c99.c. isblank_l is also moved to a separate file, ctype-c99_l.c (non-XSI POSIX.1-2008 has isblank_l, but isascii / toascii are marked OB XSI). (In principle all these functions could go in separate files - that's optimal for static linking - but they are also all very small, and splitting them all out is not needed to fix the present bug.) Tested for x86_64 (testsuite, and that installed stripped shared libraries are unchanged by the patch - the ordering in which new and existing sources are listed in ctype/Makefile is arranged so functions go in the same order so that this comparison works). [BZ #17635] * ctype/ctype-c99.c: New file. isblank implementation moved from ... * ctype/ctype-extn.c: ... here. (__isblank_l): Move to ... * ctype/ctype-c99_l.c: ... here. New file. * ctype/Makefile (routines): Add ctype-c99 and ctype-c99_l. * conform/Makefile (test-xfail-ISO99/ctype.h/linknamespace): Remove variable. (test-xfail-ISO11/ctype.h/linknamespace): Likewise. (test-xfail-XPG3/ctype.h/linknamespace): Likewise. (test-xfail-XPG4/ctype.h/linknamespace): Likewise. (test-xfail-UNIX98/ctype.h/linknamespace): Likewise. (test-xfail-POSIX2008/ctype.h/linknamespace): Likewise.
* Fix wordsize-64 posix_fadvise64, posix_fallocate64 namespace (bug 17777).Joseph Myers2015-01-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | On systems using sysdeps/unix/sysv/linux/wordsize-64, posix_fadvise64 and posix_fallocate64 (non-POSIX) are strong aliases for posix_fadvise and posix_fallocate (POSIX), meaning references to the latter wrongly bring in definitions of the former. They should be weak aliases; this patch makes them so. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). [BZ #17777] * sysdeps/unix/sysv/linux/wordsize-64/posix_fadvise.c (posix_fadvise64): Define as weak alias not strong alias. * sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c (posix_fallocate64): Likewise. * conform/Makefile (test-xfail-XOPEN2K/fcntl.h/linknamespace): Remove variable. (test-xfail-XOPEN2K/mqueue.h/linknamespace): Likewise. (test-xfail-POSIX2008/fcntl.h/linknamespace): Likewise. (test-xfail-POSIX2008/mqueue.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/fcntl.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/mqueue.h/linknamespace): Likewise.
* Fix MIPS variable PAGE_SIZE bug (16191)Matthew Fortune2015-01-051-7/+7
| | | | | | | | | | | | | | | | MIPS supports a variable page size but glibc defines a constant. This causes at least two glibc tests to fail when the page size does not match the hard-coded size: inet/test-ifaddrs inet/test_ifindex [BZ #16191] * NEWS: Mention bug fix. * sysdeps/unix/sysv/linux/mips/sys/user.h (PAGE_SHIFT): Remove. (PAGE_SIZE, PAGE_MASK, NBPG, UPAGES): Likewise. (HOST_TEXT_START_ADDR, HOST_DATA_START_ADDR): Likewise. (HOST_STACK_END_ADDR): Likewise.
* Fix MIPS TIOCSER_TEMT namespace (bug 17782).Joseph Myers2015-01-021-1/+1
| | | | | | | | | | | | sysdeps/unix/sysv/linux/mips/bits/termios.h defines TIOCSER_TEMT unconditionally, but it's in the user's namespace. This patch conditions it on __USE_MISC, as on powerpc. I've filed bug 17783 for the residual inconsistency in conditions on this macro (sparc defines it for __USE_GNU only). [BZ #17782] * sysdeps/unix/sysv/linux/mips/bits/termios.h (TIOCSER_TEMT): Condition macro definition on [__USE_MISC].
* Fix MIPS sa_flags type (bug 17781).Joseph Myers2015-01-021-1/+1
| | | | | | | | | | | sysdeps/unix/sysv/linux/mips/bits/sigaction.h gives sa_flags type unsigned int, but POSIX says it should be signed int. This patch gives it the correct type (the layout is unchanged, so there are no ABI issues involved). [BZ #17781] * sysdeps/unix/sysv/linux/mips/bits/sigaction.h (struct sigaction): Change type of sa_flags field to int.
* Fix MIPS bits/fcntl.h namespace (bug 17780).Joseph Myers2015-01-021-1/+1
| | | | | | | | | | | sysdeps/unix/sysv/linux/mips/bits/fcntl.h has a structure field called pad, which is in the user's namespace. This patch changes it to __glibc_reserved0. [BZ #17780] * sysdeps/unix/sysv/linux/mips/bits/fcntl.h (struct flock) [!__USE_FILE_OFFSET64 && _MIPS_SIM != _ABI64]: Rename pad field to __glibc_reserved0.
* Update copyright dates not handled by scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I've updated copyright dates in glibc for 2015. This is the patch for the changes not generated by scripts/update-copyrights and subsequent build / regeneration of generated files. Apart from the files updated last time (of which sotruss.ksh had moved to sotruss.sh during the year) this also updates nptl/version.c (missed from 2006 until October) and sysdeps/unix/sysv/linux/lddlibc4.c (missed since 2009). * NEWS: Update copyright dates. * catgets/gencat.c (print_version): Likewise. * csu/version.c (banner): Likewise. * debug/catchsegv.sh: Likewise. * debug/pcprofiledump.c (print_version): Likewise. * debug/xtrace.sh (do_version): Likewise. * elf/ldconfig.c (print_version): Likewise. * elf/ldd.bash.in: Likewise. * elf/pldd.c (print_version): Likewise. * elf/sotruss.sh: Likewise. * elf/sprof.c (print_version): Likewise. * iconv/iconv_prog.c (print_version): Likewise. * iconv/iconvconfig.c (print_version): Likewise. * locale/programs/locale.c (print_version): Likewise. * locale/programs/localedef.c (print_version): Likewise. * login/programs/pt_chown.c (print_version): Likewise. * malloc/memusage.sh (do_version): Likewise. * malloc/memusagestat.c (print_version): Likewise. * malloc/mtrace.pl: Likewise. * manual/libc.texinfo: Likewise. * nptl/version.c (banner): Likewise. * nscd/nscd.c (print_version): Likewise. * nss/getent.c (print_version): Likewise. * nss/makedb.c (print_version): Likewise. * posix/getconf.c (main): Likewise. * scripts/test-installation.pl: Likewise. * sysdeps/unix/sysv/linux/lddlibc4.c (main): Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
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* Don't check PI_STATIC_AND_HIDDEN in i386 dl-machine.hH.J. Lu2014-12-301-1/+2
| | | | | | | | | | PI_STATIC_AND_HIDDEN is always defined for i386. There is no need to check PI_STATIC_AND_HIDDEN in sysdeps/i386/dl-machine.h. [BZ #17775] * sysdeps/i386/dl-machine.h (PI_STATIC_AND_HIDDEN): Removed. (elf_machine_dynamic) [!PI_STATIC_AND_HIDDEN]: Likewise. (elf_machine_load_address) [!PI_STATIC_AND_HIDDEN]: Likewise.
* Mention i386 memcpy with SSE2 unaligned load/storeH.J. Lu2014-12-301-0/+2
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* Fix libm feraiseexcept namespace (bug 17723).Joseph Myers2014-12-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various C90 and UNIX98 libm functions call feraiseexcept, which is not in those standards. This causes linknamespace test failures - except on x86 / x86_64, where feraiseexcept is inline (for the relevant constant arguments) in bits/fenv.h. This patch fixes this by making those functions call __feraiseexcept instead. All changes are applied to all architectures rather than considering the possibility that some might not be needed in some cases (e.g. x86) as it seems most maintainable to keep architectures consistent. Where __feraiseexcept does not exist, it is added, with feraiseexcept made a weak alias; where it is a strong alias, it is made weak. libm_hidden_def / libm_hidden_proto are used with __feraiseexcept (this might in some cases improve code generation for existing calls to __feraiseexcept in some code on some architectures). Where there are dummy feraiseexcept macros (on architectures without floating-point exceptions support, to avoid compile errors from references to undefined FE_* macros), corresponding dummy __feraiseexcept macros are added. And on x86, to ensure __feraiseexcept calls still get inlined, the inline function in bits/fenv.h is refactored so that most of it can be reused in an inline __feraiseexcept in a separate include/bits/fenv.h. Calls are changed in C90/UNIX98 functions, but generally not in functions missing from those standards. They are also changed in libc_fe* functions (on the basis that those might be used in any libm function), and in feupdateenv (on the same basis - may be used, via default libc_*, in any libm function - of course feupdateenv will need changing to __feupdateenv in a subsequent patch to make that fully namespace-clean). No __feraiseexcept is added corresponding to the feraiseexcept in powerpc bits/fenvinline.h, because that macro definition is conditional on !defined __NO_MATH_INLINES, and glibc libm is built with -D__NO_MATH_INLINES, so changing internal calls to use __feraiseexcept should make no difference. Tested for x86_64 (testsuite; the only change in disassembly of installed shared libraries is a slight code reordering in clog10, of no apparent significance). Also tested for MIPS, where (in the configuration tested) it eliminates math.h linknamespace failures for n32 and n64 (some for o32 remain because of other issues). [BZ #17723] * include/fenv.h (__feraiseexcept): Use libm_hidden_proto. * math/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. * sysdeps/aarch64/fpu/fraiseexcpt.c (feraiseexcept): Rename to __feraiseexcept and define as weak alias of __feraiseexcept. Use libm_hidden_weak. * sysdeps/arm/fraiseexcpt.c (feraiseexcept): Likewise. * sysdeps/hppa/fpu/fraiseexcpt.c (feraiseexcept): Likewise. * sysdeps/i386/fpu/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. * sysdeps/ia64/fpu/fraiseexcpt.c (feraiseexcept): Rename to __feraiseexcept and define as weak alias of __feraiseexcept. Use libm_hidden_weak. * sysdeps/m68k/coldfire/fpu/fraiseexcpt.c (feraiseexcept): Likewise. * sysdeps/microblaze/math_private.h (__feraiseexcept): New macro. * sysdeps/mips/fpu/fraiseexcpt.c (feraiseexcept): Rename to __feraiseexcept and define as weak alias of __feraiseexcept. Use libm_hidden_weak. * sysdeps/powerpc/fpu/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. * sysdeps/powerpc/nofpu/fraiseexcpt.c (__feraiseexcept): Likewise. * sysdeps/powerpc/powerpc32/e500/nofpu/fraiseexcpt.c (__feraiseexcept): Likewise. * sysdeps/s390/fpu/fraiseexcpt.c (feraiseexcept): Rename to __feraiseexcept and define as weak alias of __feraiseexcept. Use libm_hidden_weak. * sysdeps/sh/sh4/fpu/fraiseexcpt.c (feraiseexcept): Likewise. * sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. * sysdeps/tile/math_private.h (__feraiseexcept): New macro. * sysdeps/unix/sysv/linux/alpha/fraiseexcpt.S (__feraiseexcept): Use libm_hidden_def. * sysdeps/x86_64/fpu/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. (feraiseexcept): Define as weak not strong alias. Use libm_hidden_weak. * sysdeps/x86/fpu/bits/fenv.h (__feraiseexcept_invalid_divbyzero): New inline function. Factored out of ... (feraiseexcept): ... here. Use __feraiseexcept_invalid_divbyzero. * sysdeps/x86/fpu/include/bits/fenv.h: New file. * math/e_scalb.c (invalid_fn): Call __feraiseexcept instead of feraiseexcept. * math/w_acos.c (__acos): Likewise. * math/w_asin.c (__asin): Likewise. * math/w_ilogb.c (__ilogb): Likewise. * math/w_j0.c (y0): Likewise. * math/w_j1.c (y1): Likewise. * math/w_jn.c (yn): Likewise. * math/w_log.c (__log): Likewise. * math/w_log10.c (__log10): Likewise. * sysdeps/aarch64/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/aarch64/fpu/math_private.h (libc_feupdateenv_test_aarch64): Likewise. * sysdeps/alpha/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/arm/fenv_private.h (libc_feupdateenv_test_vfp): Likewise. * sysdeps/arm/feupdateenv.c (feupdateenv): Likewise. * sysdeps/ia64/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/m68k/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/mips/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/powerpc/fpu/e_sqrt.c (__slow_ieee754_sqrt): Likewise. * sysdeps/s390/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/sh/sh4/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/sparc/fpu/feupdateenv.c (__feupdateenv): Likewise.
* Mention fix for BZ #17732H.J. Lu2014-12-301-1/+1
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