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* nptl: support thread stacks that grow upCarlos O'Donell2016-02-194-12/+55
| | | | | | Gentoo has been carrying this for all arches since 2.17. URL: http://bugs.gentoo.org/301642
* Update NEWS with 2.24 templateAdhemerval Zanella2016-02-192-0/+17
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* Fix ldbl-128ibm nextafterl, nexttowardl sign of zero result (bug 19678).Joseph Myers2016-02-192-0/+10
| | | | | | | | | | | | | | The ldbl-128ibm implementation of nextafterl / nexttowardl returns -0 in FE_DOWNWARD mode when taking the next value below the least positive subnormal, when it should return +0. This patch fixes it to check explicitly for this case. Tested for powerpc. [BZ #19678] * sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Ensure +0.0 is returned when taking the next value below the least positive value.
* malloc: Remove NO_THREADSFlorian Weimer2016-02-194-24/+7
| | | | | No functional change. It was not possible to build without threading support before.
* malloc: Remove max_total_mem member form struct malloc_parFlorian Weimer2016-02-195-9/+16
| | | | | Also note that sumblks in struct mallinfo is always 0. No functional change.
* malloc: Remove arena_mem variableFlorian Weimer2016-02-193-8/+6
| | | | The computed value is never used. The accesses were data races.
* res_ninit: Update commentFlorian Weimer2016-02-192-15/+5
| | | | | | Since commit e66e7419a6f58200eec6941b14e2dcff9875cc6c (Actually make it possible to user the default name server.), the default is INADDR_LOOPBACK, not INADDR_ANY.
* Improve file descriptor checks for posix_spawn actions [BZ #19505]Florian Weimer2016-02-198-12/+249
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* Remove trailing newline from date_fmt in Serbian locales [BZ #19581]Florian Weimer2016-02-194-3/+10
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* tst-malloc-thread-exit: Use fewer system resourcesFlorian Weimer2016-02-192-14/+22
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* localedata: dz_BT/ps_AF: reformat dataMike Frysinger2016-02-193-94/+99
| | | | | | ps_AF is the only file that indents fields with tabs. Kill them. dz_BT is the only file with a slightly indented field. Kill that.
* locledata: trim trailing blank lines/commentsMike Frysinger2016-02-1834-39/+36
| | | | No functional changes, just trying to standardize the format a bit.
* Fix ldbl-128ibm powl overflow handling (bug 19674).Joseph Myers2016-02-192-17/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | The ldbl-128ibm implementation of powl has some problems in the case of overflow or underflow, which are mainly visible in non-default rounding modes. * When overflow or underflow is detected early, the correct sign of an overflowing or underflowing result is not allowed for. This is mostly hidden in the default rounding mode by the errno-setting wrappers recomputing the result (except in non-default error-handling modes such as -lieee), but visible in other rounding modes where a result that is not zero or infinity causes the wrappers not to do the recomputation. * The final scaling is done before the sign is incorporated in the result, but should be done afterwards for correct overflowing and underflowing results in directed rounding modes. This patch fixes those problems. Tested for powerpc. [BZ #19674] * sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Include sign in overflowing and underflowing results when overflow or underflow is detected early. Include sign in result before rather than after scaling.
* Fix ldbl-128ibm remainderl, remquol equality tests (bug 19603).Joseph Myers2016-02-194-0/+16
| | | | | | | | | | | | | | | | | | | | | | The ldbl-128ibm implementations of remainderl and remquol have logic resulting in incorrect tests for equality of the absolute values of the arguments. Equality is tested based on the integer representations of the high and low parts, with the sign bit masked off the high part - but when this changes the sign of the high part, the sign of the low part needs to be changed as well, and failure to do this means arguments are wrongly treated as equal when they are not. This patch fixes the logic to adjust signs of low parts as needed. Tested for powerpc. [BZ #19603] * sysdeps/ieee754/ldbl-128ibm/e_remainderl.c (__ieee754_remainderl): Adjust sign of integer version of low part when taking absolute value of high part. * sysdeps/ieee754/ldbl-128ibm/s_remquol.c (__remquol): Likewise. * math/libm-test.inc (remainder_test_data): Add another test. (remquo_test_data): Likewise.
* Fix ldbl-128ibm fmodl handling of equal arguments with low part zero (bug ↵Joseph Myers2016-02-184-0/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 19602). The ldbl-128ibm implementation of fmodl has logic to detect when the first argument has absolute value less than or equal to the second. This logic is only correct for nonzero low parts; if the high parts are equal and the low parts are zero, then the signs of the low parts (which have no semantic effect on the value of the long double number) can result in equal values being wrongly treated as unequal, and an incorrect result being returned from fmodl. This patch fixes this by checking for the case of zero low parts. Although this does show up in tests from libm-test.inc (both tests of fmodl, and, indirectly, of remainderl / dreml), the dependence on non-semantic zero low parts means that test shouldn't be expected to reproduce it reliably; thus, this patch adds a standalone test that sets up affected values using unions. Tested for powerpc. [BZ #19602] * sysdeps/ieee754/ldbl-128ibm/e_fmodl.c (__ieee754_fmodl): Handle equal high parts and both low parts zero specially. * sysdeps/ieee754/ldbl-128ibm/test-fmodl-ldbl-128ibm.c: New test. * sysdeps/ieee754/ldbl-128ibm/Makefile [$(subdir) = math] (tests): Add test-fmodl-ldbl-128ibm.
* Fix ldbl-128ibm fmodl handling of subnormal results (bug 19595).Joseph Myers2016-02-182-9/+11
| | | | | | | | | | | | | | | | | | | | | The ldbl-128ibm implementation of fmodl has completely bogus logic for subnormal results (in this context, that means results for which the result is in the subnormal range for double, not results with absolute value below LDBL_MIN), based on code used for ldbl-128 that is correct in that case but incorrect in the ldbl-128ibm use. This patch fixes it to convert the mantissa into the correct form expected by ldbl_insert_mantissa, removing the other cases of the code that were incorrect and in one case unreachable for ldbl-128ibm. A correct exponent value is then passed to ldbl_insert_mantissa to reflect the shifted result. Tested for powerpc. [BZ #19595] * sysdeps/ieee754/ldbl-128ibm/e_fmodl.c (__ieee754_fmodl): Use common logic for all cases of shifting subnormal results. Do not insert sign bit in shifted mantissa. Always pass -1023 as biased exponent to ldbl_insert_mantissa in subnormal case.
* Fix ldbl-128ibm roundl for non-default rounding modes (bug 19594).Joseph Myers2016-02-182-36/+39
| | | | | | | | | | | | | | | | The ldbl-128ibm implementation of roundl is only correct in round-to-nearest mode (in other modes, there are incorrect results and overflow exceptions in some cases). This patch reimplements it along the lines used for floorl, ceill and truncl, using __round on the high part, and on the low part if the high part is an integer, and then adjusting in the cases where this is incorrect. Tested for powerpc. [BZ #19594] * sysdeps/ieee754/ldbl-128ibm/s_roundl.c (__roundl): Use __round on high and low parts then adjust result and use ldbl_canonicalize_int if needed.
* Fix ldbl-128ibm truncl for non-default rounding modes (bug 19593).Joseph Myers2016-02-182-39/+16
| | | | | | | | | | | | | | | | | | | | The ldbl-128ibm implementation of truncl is only correct in round-to-nearest mode (in other modes, there are incorrect results and overflow exceptions in some cases). It is also unnecessarily complicated, rounding both high and low parts to the nearest integer and then adjusting for the semantics of trunc, when it seems more natural to take the truncation of the high part (__trunc optimized inline versions can be used), and the floor or ceiling of the low part (depending on the sign of the high part) if the high part is an integer, as was done for floorl and ceill. This patch makes it use that simpler approach. Tested for powerpc. [BZ #19593] * sysdeps/ieee754/ldbl-128ibm/s_truncl.c (__truncl): Use __trunc on high part and __floor or __ceil on low part then use ldbl_canonicalize_int if needed.
* Fix ldbl-128ibm ceill for non-default rounding modes (bug 19592).Joseph Myers2016-02-182-36/+20
| | | | | | | | | | | | | | | | | | The ldbl-128ibm implementation of ceill is only correct in round-to-nearest mode (in other modes, there are incorrect results and overflow exceptions in some cases). It is also unnecessarily complicated, rounding both high and low parts to the nearest integer and then adjusting for the semantics of ceil, when it seems more natural to take the ceiling of the high part (__ceil optimized inline versions can be used), and that of the low part if the high part is an integer, as was done for floorl. This patch makes it use that simpler approach. Tested for powerpc. [BZ #19592] * sysdeps/ieee754/ldbl-128ibm/s_ceill.c (__ceill): Use __ceil on high and low parts then use ldbl_canonicalize_int if needed.
* Fix ldbl-128ibm floorl for non-default rounding modes (bug 17899).Joseph Myers2016-02-183-29/+57
| | | | | | | | | | | | | | | | | | | | | | | | The ldbl-128ibm implementation of floorl is only correct in round-to-nearest mode (in other modes, there are incorrect results and overflow exceptions in some cases going beyond the incorrect signs of zero results noted in bug 17899). It is also unnecessarily complicated, rounding both high and low parts to the nearest integer and then adjusting for the semantics of floor, when it seems more natural to take the floor of the high part (__floor optimized inline versions can be used), and that of the low part if the high part is an integer. This patch makes it use that simpler approach, with a canonicalization that works in all rounding modes (given that the only way the result can be noncanonical is if taking the floor of a negative noninteger low part increased its exponent). Tested for powerpc, where over a thousand failures are removed from test-ldouble.out (floorl problems affect many powl tests). [BZ #17899] * sysdeps/ieee754/ldbl-128ibm/math_ldbl.h (ldbl_canonicalize_int): New function. * sysdeps/ieee754/ldbl-128ibm/s_floorl.c (__floorl): Use __floor on high and low parts then use ldbl_canonicalize_int if needed.
* Regenerated configure scripts.Adhemerval Zanella2016-02-182-1/+3
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* Regenerate libc.pot for 2.23.Adhemerval Zanella2016-02-182-437/+455
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* Updated translations for 2.23.Adhemerval Zanella2016-02-1829-9297/+11202
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* Open development for 2.24. glibc-2.23.90Adhemerval Zanella2016-02-182-2/+5
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* Update version.h and include/features.h for 2.23 release glibc-2.23Adhemerval Zanella2016-02-183-3/+7
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* Update NEWS with fixed bugs for 2.23 releaseAdhemerval Zanella2016-02-182-4/+270
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* Add _STRING_INLINE_unaligned and string_private.hH.J. Lu2016-02-1814-18/+155
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As discussed in https://sourceware.org/ml/libc-alpha/2015-10/msg00403.html the setting of _STRING_ARCH_unaligned currently controls the external GLIBC ABI as well as selecting the use of unaligned accesses withing GLIBC. Since _STRING_ARCH_unaligned was recently changed for AArch64, this would potentially break the ABI in GLIBC 2.23, so split the uses and add _STRING_INLINE_unaligned to select the string ABI. This setting must be fixed for each target, while _STRING_ARCH_unaligned may be changed from release to release. _STRING_ARCH_unaligned is used unconditionally in glibc. But <bits/string.h>, which defines _STRING_ARCH_unaligned, isn't included with -Os. Since _STRING_ARCH_unaligned is internal to glibc and may change between glibc releases, it should be made private to glibc. _STRING_ARCH_unaligned should defined in the new string_private.h heade file which is included unconditionally from internal <string.h> for glibc build. [BZ #19462] * bits/string.h (_STRING_ARCH_unaligned): Renamed to ... (_STRING_INLINE_unaligned): This. * include/string.h: Include <string_private.h>. * string/bits/string2.h: Replace _STRING_ARCH_unaligned with _STRING_INLINE_unaligned. * sysdeps/aarch64/bits/string.h (_STRING_ARCH_unaligned): Removed. (_STRING_INLINE_unaligned): New. * sysdeps/aarch64/string_private.h: New file. * sysdeps/generic/string_private.h: Likewise. * sysdeps/m68k/m680x0/m68020/string_private.h: Likewise. * sysdeps/s390/string_private.h: Likewise. * sysdeps/x86/string_private.h: Likewise. * sysdeps/m68k/m680x0/m68020/bits/string.h (_STRING_ARCH_unaligned): Renamed to ... (_STRING_INLINE_unaligned): This. * sysdeps/s390/bits/string.h (_STRING_ARCH_unaligned): Renamed to ... (_STRING_INLINE_unaligned): This. * sysdeps/sparc/bits/string.h (_STRING_ARCH_unaligned): Renamed to ... (_STRING_INLINE_unaligned): This. * sysdeps/x86/bits/string.h (_STRING_ARCH_unaligned): Renamed to ... (_STRING_INLINE_unaligned): This.
* NEWS: List additional fixed security bugsFlorian Weimer2016-02-181-4/+16
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* Use PIC relocation in ALIAS_IMPLAndrew Senkevich2016-02-172-2/+8
| | | | | | | | | Since libmvec_nonshared.a may be linked into shared objects, ALIAS_IMPL should use PIC relocation. [BZ #19590] * sysdeps/x86_64/fpu/svml_finite_alias.S (ALIAS_IMPL): Use PIC relocation.
* CVE-2015-7547: getaddrinfo() stack-based buffer overflow (Bug 18665).Carlos O'Donell2016-02-165-66/+339
| | | | | | | | | | | | | | | | | | | | * A stack-based buffer overflow was found in libresolv when invoked from libnss_dns, allowing specially crafted DNS responses to seize control of execution flow in the DNS client. The buffer overflow occurs in the functions send_dg (send datagram) and send_vc (send TCP) for the NSS module libnss_dns.so.2 when calling getaddrinfo with AF_UNSPEC family. The use of AF_UNSPEC triggers the low-level resolver code to send out two parallel queries for A and AAAA. A mismanagement of the buffers used for those queries could result in the response of a query writing beyond the alloca allocated buffer created by _nss_dns_gethostbyname4_r. Buffer management is simplified to remove the overflow. Thanks to the Google Security Team and Red Hat for reporting the security impact of this issue, and Robert Holiday of Ciena for reporting the related bug 18665. (CVE-2015-7547) See also: https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html https://sourceware.org/ml/libc-alpha/2016-02/msg00418.html
* Update INSTALL with latest versions tested to work.Carlos O'Donell2016-02-143-15/+19
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* Ensure isinff, isinfl, isnanf, and isnanl are defined (Bug 19439)Carlos O'Donell2016-02-144-3/+71
| | | | | | | In ICO C++11 mode ensure that isinff, isinfl, isnanf, and isnanl are defined. These functions were accidentally removed from the header as part of commit d9b965fa56350d6eea9f7f438a0714c7ffbb183f, but being GNU extensions, they should have been left in place.
* Revert "ChangeLogs: convert to utf-8"Mike Frysinger2016-02-127-14/+14
| | | | | | | | | | This reverts commit d2bb040b2a2f58b1ef80f01292bd722fce01d36a. It seems some files (like tst-regex) directly parse these and rely on some of its content *not* being UTF-8. Until we can fix thoses tests (and isolate them from ChangeLog updates), back out this change. It also shouldn't really have landed during the freeze.
* hsearch_r: Apply VM size limit in test caseFlorian Weimer2016-02-122-0/+26
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* [ARM] add missing -funwind-tables to test case (bug 19529)Szabolcs Nagy2016-02-112-0/+6
| | | | | stdlib/tst-makecontext test failed on arm because it used backtrace without -funwind-tables.
* ChangeLogs: convert to utf-8Paul Eggert2016-02-087-14/+14
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* localedata: convert all files to utf-8Mike Frysinger2016-02-0815-146/+163
| | | | | The comments were using various encodings like ISO-8859-1. Convert them all over to UTF-8.
* powerpc: Regenerate libm-test-ulpsRajalakshmi Srinivasaraghavan2016-02-042-0/+14
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* Fix MIPS mmap negative offset handling for consistency (bug 19550).Joseph Myers2016-02-017-2/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The handling of negative offsets in MIPS mmap is inconsistent with other architectures, as shown by failure of the test posix/tst-mmap-offset for o32 and n32. The MIPS mmap syscall uses a signed argument and does a signed arithmetic shift on it, whereas the glibc semantics expected by that test are for the offset to be considered as a large positive offset. This patch makes MIPS consistent with other architectures as far as possible by using the mmap2 syscall on o32 (#including the generic implementation), and making mmap not an alias for mmap64 for n32, with a custom implementation for n32 that zero-extends the offset argument to 64-bit before calling the mmap syscall. Tested for MIPS64 (o32, n32, n64). [BZ #19550] * sysdeps/unix/sysv/linux/mips/mips32/mmap.c: New file. * sysdeps/unix/sysv/linux/mips/mips64/mmap64.c: Move to .... * sysdeps/unix/sysv/linux/mips/mips64/n64/mmap64.c: ... here. * sysdeps/unix/sysv/linux/mips/mips64/n32/mmap.c: New file. * sysdeps/unix/sysv/linux/mips/mips64/n32/syscalls.list (mmap64): New syscall entry. * sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list (mmap): New syscall entry. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (mmap): Remove syscall entry.
* Revert "elf/elf.h: Add new 386 and X86_64 relocations from binutils."Mark Wielaard2016-01-312-20/+3
| | | | | | This reverts commit 3da75f08818fa3d217e5d566477c7001cb774792. glibc 2.23 hard freeze doesn't allow this change at this time.
* elf/elf.h: Add new 386 and X86_64 relocations from binutils.Mark Wielaard2016-01-312-3/+20
| | | | | | | | | | | | | | | | | | | | | | | The following new 386 and X86_64 were added to binutils. They are non-dynamic relocations, so don't need direct handling in glibc. But other programs, like elfutils, use the glibc elf.h definitions for the names and numbers when inspecting ET_REL files. R_386_GOT32X was proposed in https://groups.google.com/forum/#!topic/ia32-abi/GbJJskkid4I X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX were proposed in https://groups.google.com/forum/#!topic/x86-64-abi/n9AWHogmVY0 There also used to be R_X86_64_PC32_BND and R_X86_64_PLT32_BND but those already got deprecated in https://groups.google.com/d/msg/x86-64-abi/-hdQyMixt8Y/XFDOvioG85cJ * elf/elf.h (R_386_GOT32X): New. (R_386_NUM): Update. (R_X86_64_GOTPCRELX: New. (R_X86_64_REX_GOTPCRELX): New. (R_X86_64_NUM): Update.
* Improve check against integer wraparound in hcreate_r [BZ #18240]Florian Weimer2016-01-284-19/+105
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* Fix MIPS64 memcpy regression.Steve Ellcey2016-01-282-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MIPS memcpy optimizations at <https://sourceware.org/ml/libc-alpha/2015-10/msg00597.html> introduced a bug causing many string function tests to fail with segfaults for n32 and n64: FAIL: string/stratcliff FAIL: string/test-bcopy FAIL: string/test-memccpy FAIL: string/test-memcmp FAIL: string/test-memcpy FAIL: string/test-memmove FAIL: string/test-mempcpy FAIL: string/test-stpncpy FAIL: string/test-strncmp FAIL: string/test-strncpy (Some failures in other directories could also be caused by this bug.) The problem is that after the check for whether a word of input is left that can be copied as a word before moving to byte copies, a load can occur in the branch delay slot, resulting in a segfault if we are at the end of a page and the following page is unmapped. I don't see how this would have passed the tests as reported in the original patch posting (different kernel configurations affecting the code setting up unmapped pages, maybe?), since the tests in question don't appear to have changed recently. This patch moves a later instruction into the delay slot, as suggested at <https://sourceware.org/ml/libc-alpha/2016-01/msg00584.html>. Tested for n32 and n64. 2016-01-28 Steve Ellcey <sellcey@imgtec.com> Joseph Myers <joseph@codesourcery.com> * sysdeps/mips/memcpy.S (MEMCPY_NAME) [USE_DOUBLE]: Avoid word load in branch delay slot when less than a word of input left.
* Remove unused variablesAndreas Schwab2016-01-275-10/+13
| | | | They are flagged by -Wunused-const-variable.
* Update localplt.data for 32-bit sparc.David S. Miller2016-01-262-0/+5
| | | | * sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data: Add _Q_cmp.
* Define __sqrtl_finite on sparc 32-bit with correct symbol version.David S. Miller2016-01-254-2/+14
| | | | | | | * sysdeps/sparc/sparc32/Versions (GLIBC_2.23): Add entry for __sqrtl_finite. * sysdeps/sparc/sparc32/fpu/e_sqrtl.c (__sqrtl_finite): Define instead using versioned_symbol. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Fix ordering of entries.
* Adjust sparc 32-bit __sqrtl_finite version tag.David S. Miller2016-01-252-1/+6
| | | | | * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Move __sqrtl_finite to GLIBC_2.23
* Update Alpha libm-test-ulpsRichard Henderson2016-01-252-284/+400
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* Don't do lock elision on an error checking mutex (bug 17514)Andreas Schwab2016-01-254-4/+76
| | | | | | Error checking mutexes are not supposed to be subject to lock elision. That would defeat the error checking nature of the mutex because lock elision doesn't record ownership.
* Cleanup ppc bits/ipc.hPaul E. Murphy2016-01-252-24/+16
| | | | | Ages ago (commit e9dcb08) the ipc syscalls were inlined and eventually abstracted away any need for direct __ipc calls.
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