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2017-03-17Make alpha termios.h define IXANY unconditionally (bug 21259).Joseph Myers2-1/+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].
2017-03-17conformtest: Add mips XFAIL for struct stat st_dev type (bug 17786).Joseph Myers3-1/+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.
2017-03-17Add missing piece to last ChangeLog entry.Joseph Myers1-0/+1
2017-03-17conformtest: Add alpha XFAIL for struct netent n_net type (bug 21260).Joseph Myers3-1/+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 [$(subdir) = conform] (conformtest-xfail-conds): New variable.
2017-03-17conformtest: Skip execution tests when cross-compiling.Joseph Myers3-2/+18
This patch makes conformtest skip execution tests when cross-compiling, as an interim step towards running most of these tests (presently disabled) in that case. It omits the (obvious) Makefile change to actually enable the conformtest tests when cross-compiling, as there are still enough failures seen with build-many-glibcs.py that I'd like to get the results cleaner before enabling these tests. Tested for x86_64, and with the tests actually enabled for cross-compilation with build-many-glibcs.py. * conform/conformtest.pl ($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 $(conformtest-cross) to conformtest.pl.
2017-03-17conformtest: Support system-specific XFAILs.Joseph Myers3-2/+27
conformtest has an internal XFAIL mechanism to allow failures of individual expectations to be ignored, so that known hard-to-fix failures (e.g. those affecting ABIs or requiring kernel changes) do not cause the overall tests to FAIL and so hide other failures from the same (header, standard) pair. Various such bugs are system-specific, so this patch adds a mechanism to allow system-specific XFAILs. A system-independent XFAIL is achieved by putting "xfail-" at the start of the relevant expectation in the *-data files. A system-specific XFAIL instead uses "xfail[cond]-", where "cond" is a condition listed in conformtest-xfail-conds in a sysdeps makefile (so one for x32 might set conformtest-xfail-conds = x86_64-x32-linux, for example, and then an expectation for tv_nsec's type could use xfail[x86_64-x32-linux]-). The actual names are arbitrary, just needing to match between the makefiles and the expectations, and if necessary you can use "xfail[cond1|cond2]-" for a test that is expected to fail under multiple conditions. As with system-independent XFAILs, I think system-specific ones should have a bug filed in Bugzilla and a comment referencing that bug. Tested for x86_64, including with test expectations and makefiles changed to use the new facility. * conform/conformtest.pl ($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.
2017-03-16conformtest: Make more tests into compilation tests.Joseph Myers2-8/+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.
2017-03-16XFAIL catan and catanh tests on ibm128Tulio Magno Quites Machado Filho4-1168/+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.
2017-03-16Remove C++ namespace handling from glibc headers.Joseph Myers25-411/+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.
2017-03-15Add ChangeLog entry for aarch64 ifunc support patch.Steve Ellcey1-0/+12
Forgot to add ChangeLog entry.
2017-03-15Add ifunc support for aarch64.Steve Ellcey7-0/+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.
2017-03-15x86_64: fix static build of __mempcpy_chk for compilers defaulting to PIC/PIEMike Frysinger2-1/+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.
2017-03-15Improve float range reduction accuracy near pi/2 (bug 21094).Joseph Myers5-2/+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.
2017-03-15hppa: Fix setting of __libc_stack_endJohn David Anglin2-5/+9
The binutils package was recently changed to fix -z relro support on hppa. See ld/21000 for details: https://sourceware.org/bugzilla/show_bug.cgi?id=21000 This exposed a problem with the _dl_start_user function in the RTLD_START define. We need to set __libc_stack_end before it is made read only. For this, we need to define DL_STACK_END. The offset of 0x160 gives the same stack end as the code in _dl_start_user. A build log with the attached patch is here: https://buildd.debian.org/status/fetch.php?pkg=glibc&arch=hppa&ver=2.24-9&stamp=1487639205&raw=0
2017-03-15Fix build with --enable-static-nss [BZ #21088]Alexey Neyman2-1/+7
Signed-off-by: Alexey Neyman <stilor@att.net>
2017-03-15Fix combreloc test with BSD grepAlexey Neyman3-9/+14
The test for "-z combreloc" fails when cross-compiling on a machine that uses BSD grep (e.g. on macos). grep complains about empty subexpression and exits with non-zero status, which is interpreted by configure as "not found". As a result, support for "-z combreloc" (HAVE_Z_COMBRELOC) is not detected, leading to link failure on SPARC. While there, replace fgrep with 'grep -F', as fgrep is non-POSIX. * configure.ac: Avoid empty subexpression in grep. Signed-off-by: Alexey Neyman <stilor@att.net>
2017-03-15Fix test-errno issuesAdhemerval Zanella4-9/+53
This patch fixes multiple issues of test-errno.c (9a56f8718341): - Rename Linux test-errno.c to test-errno-linux.c to avoid build the same source for both tests. - Add a mlock check for 32 bits build running on 64 bits kernels. Althuough man pages states that mlock fails with EINVAL if final address overflows, kernels does not return it for aforementioned condition (it returns ENOMEM instead). Although it seems to be a kernel issue for compat syscall handling, I think it is worth to still check syscall return and document the behavior. - Initialize option lenght for setsockopt check. - Change open test from EINVAL to EISDIR. Checked on x86_64-linux-gnu and i686-linux-gnu (running on 64 bits kernel). * posix/test-errno.c (do_test): Initialize setsockopt optlen. * sysdeps/unix/sysv/linux/test-errno.c: Move to ... * sysdeps/unix/sysv/linux/test-errno-linux.c: ... here. (test_wrp_rv): Fix format. (test_wrp_rv2): New macro. (do_test): Handle mlock return on 64 bits kernels with 32 bits binaries.
2017-03-15Fix test-math-vector-sincos.h aliasing.Joseph Myers2-14/+23
x86_64 libmvec tests have been failing to build lately with GCC mainline with -Wuninitialized errors, and Markus Trippelsdorf traced this to an aliasing issue <https://sourceware.org/ml/libc-alpha/2017-03/msg00169.html>. This patch fixes the aliasing issue, so that the vectors-of-pointers are initialized using a union instead of pointer casts. This also fixes the testsuite build failures with GCC mainline. Tested for x86_64 (full testsuite with GCC 6; testsuite build with GCC mainline with build-many-glibcs.py). * sysdeps/x86/fpu/test-math-vector-sincos.h (INIT_VEC_PTRS_LOOP): Use a union when storing pointers. (VECTOR_WRAPPER_fFF_2): Do not take address of integer vector and cast result when passing to INIT_VEC_PTRS_LOOP. (VECTOR_WRAPPER_fFF_3): Likewise. (VECTOR_WRAPPER_fFF_4): Likewise.
2017-03-15Split helper classification macros from mathcalls.hGabriel F. T. Gomes6-29/+59
The classification macros: finite, fpclassify, iseqsig, isinf, isnan, issignaling, and signbit are defined by ISO C11 and declared in mathcalls.h for each of the floating-point types: float, double, and long double. TS 18661-3 does not mention these macros for float128, however support for them must be present when _Float128 is present. This is true, even when the feature test macro __STDC_WANT_IEC_60559_TYPES_EXT__ is false. Other function declarations in mathcalls.h, on the other hand, depend on __STDC_WANT_IEC_60559_TYPES_EXT__. This patch splits the helper functions (__finite, __fpclassify, __iseqsig, __isinf, __isnan, __issignaling, and __signbit) from mathcalls.h, so that these helper functions can be declared for _Float128, even when __STDC_WANT_IEC_60559_TYPES_EXT__ is false. Tested for powerpc64le, s390x, and x86_64. * include/bits/mathcalls-helper-functions.h: New file. * math/Makefile (headers): Add bits/mathcalls-helper-functions.h. * math/bits/mathcalls.h (__finite, __fpclassify, __iseqsig) (__isinf, __isnan, __issignaling, __signbit): Move declarations to math/bits/mathcalls-helper-functions.h. * math/bits/mathcalls-helper-functions.h: New file. * math/math.h: Include bits/mathcalls-helper-functions.h for float, double, and long double.
2017-03-15Use internal __feraiseexcept in __iseqsigGabriel F. T. Gomes2-1/+6
Replace the use of feraiseexcept with __feraiseexcept in the helper function __iseqsig (math/s_iseqsig_template.c). Tested for powerpc64le, s390x, and x86_64. * math/s_iseqsig_template.c (__iseqsig): Use __feraiseexcept instead of feraiseexcept.
2017-03-15support: Explain ignored failures of temporary file removal [BZ #21243]Florian Weimer2-1/+10
2017-03-15support: Add error checking to close system calls [BZ #21244]Florian Weimer7-15/+63
2017-03-15support_format_dns_packet: Fix CNAME and multiple RR handlingFlorian Weimer4-7/+123
Before this change, the loop iterating over RRs in the answer section stopped at the first CNAME record, never printing them. The CNAME and PTR record contents was extracted from the wrong buffer (whole packet instead RDATA). This desynced the parsing after the first CNAME or PTR record. Also fix the AAAA record parsing by checking their sizes.
2017-03-14Fix missing posix_fadvise64 mips64 static build (BZ #21232)Adhemerval Zanella2-0/+8
This patch fixes the missing posix_fadvise64 symbol for static build required for _FILE_OFFSET_BITS=64 on mips64 build. Checked on a mips64-linux-gnu build with run-built-tests=no. [BZ #21232] * sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c: Add posix_fadvise64 weak_alias for static build.
2017-03-14Remove _dl_platform_stringAndreas Schwab7-36/+13
There are no non-trivial uses of _dl_platform_string.
2017-03-13hurd: Make send/recv more posixishSamuel Thibault3-2/+16
Thanks David Michael for the suggestion. * sysdeps/mach/hurd/send.c (__send): Convert hurdish error code into posix error code. * sysdeps/mach/hurd/recv.c (__recv): Likewise.
2017-03-13build-many-glibcs: Remove no_isolate from SH configAdhemerval Zanella2-19/+11
Now with d40dbe7 SH build does not require more the no_isolate gcc options to correct build glibc (since SH build now does not generate a trap anymore). This patch removes the unrequired options from SH config. Checked with a build for sh3-linux-gnu, sh3eb-linux-gnu, sh4-linux-gnu, and sh4eb-linux-gnu. * scripts/build-many-glibcs.py (Context.add_all_configs): Remove no_isolate usage for SH.
2017-03-13 Remove the str(n)dup inlines from string/bits/string2.h. Although inliningWilco Dijkstra15-98/+41
calls with constant strings shows a small (~10%) performance gain, strdup is typically used in error reporting code, so not performance critical. Remove the now unused __need_malloc_and_calloc related defines from stdlib.h. Rename existing uses of str(n)dup to __str(n)dup so it no longer needs to be redirected to a builtin. Also building GLIBC with -Os now no longer shows localplt or linkname space failures (partial fix for BZ #15105 and BZ #19463). [BZ #15105] [BZ #19463] * elf/dl-cache.c (_dl_load_cache_lookup): Use __strdup. * inet/rcmd.c (rcmd_af): Likewise. * inet/rexec.c (rexec_af): Likewise. * intl/dcigettext.c (_LIBC): Likewise. * intl/finddomain.c (_nl_find_domain): Use strdup expansion. * locale/loadarchive.c (_nl_load_locale_from_archive): Use __strdup. * locale/setlocale.c (setlocale): Likewise. * posix/spawn_faction_addopen.c (posix_spawn_file_actions_addopen): Likewise. * stdlib/putenv.c (putenv): Use __strndup. * sunrpc/svc_simple.c (__registerrpc): Use __strdup. * sysdeps/posix/getaddrinfo.c (gaih_inet): Use __strdup/__strndup. * include/stdlib.h (__need_malloc_and_calloc): Remove uses. (__Need_M_And_C) Remove define/undef. * stdlib/stdlib.h (__need_malloc_and_calloc): Remove uses. (__malloc_and_calloc_defined): Remove define. * string/bits/string2.h (__strdup): Remove define. (strdup): Likewise. (__strndup): Likewise. (strndup): Likewise.
2017-03-13Add more IPV6_* macros to sysdeps/unix/sysv/linux/bits/in.h.Joseph Myers2-0/+26
Linux 4.10 adds IPV6_RECVFRAGSIZE to include/uapi/linux/in6.h, which shows that several such IPV6_* macros are missing from glibc's sysdeps/unix/sysv/linux/bits/in.h (while older ones are present). I don't know whether any of these might be deliberately omitted, but this patch adds what appear to be the missing more recent macros to glibc. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/in.h (IPV6_AUTOFLOWLABEL): New macro. (IPV6_ADDR_PREFERENCES): Likewise. (IPV6_MINHOPCOUNT): Likewise. (IPV6_ORIGDSTADDR): Likewise. (IPV6_RECVORIGDSTADDR): Likewise. (IPV6_TRANSPARENT): Likewise. (IPV6_UNICAST_IF): Likewise. (IPV6_RECVFRAGSIZE): Likewise.
2017-03-13Add missing ChangeLog entries.Thorsten Kukuk1-0/+9
2017-03-13The rpcgen tests should not run if we don't build rpcgen.Thorsten Kukuk1-0/+2
* sunrpc/Makefile: only run rpcgen tests if we build rpcgen.
2017-03-12sh: Fix building with gcc5/6Alexey Neyman2-1/+7
Build glibc for sh4-unknown-linux-gnu currently fails if one's using GCC5/6: in dl-conflict.c, the elf_machine_rela() function is called with NULL as its 3rd argument, sym. The implementation of that function in sysdeps/sh/dl-machine.h dereferences that pointer: const Elf32_Sym *const refsym = sym; ... if (map == &GL(dl_rtld_map)) value -= map->l_addr + refsym->st_value + reloc->r_addend; GCC discovers a null pointer dereference, and in accordance with -fdelete-null-pointer-checks (which is enabled in -O2) replaces this code with a trap - which, as SH does not implement a trap pattern in GCC, evaluates to an abort() call. This abort() call pulls many more objects from libc_nonshared.a, eventually resulting in link failure due to multiple definitions for a number of symbols. As far as I see, the conditional before this code is always false in rtld: _dl_resolve_conflicts() is called with main_map as the first argument, not GL(_dl_rtld_map), but since that call is in yet another compilation unit, GCC does not know about it. Patch that wraps this conditional into !defined RESOLVE_CONFLICT_FIND_MAP attached. * sysdeps/sh/dl-machine.h (elf_machine_rela): The condition in R_SH_DIR32 case is always false when inlined from dl-conflict.c. Ifdef out to prevent GCC from insertin an abort() call.
2017-03-12Fix send consolidation typoMarko Myllynen2-1/+7
Fix 60f9423b type for alpha kernel-features.h definition. * sysdeps/unix/sysv/linux/alpha/kernel-features.h (__ASSUME_RECV_SYSCALL): Replace duplicate by __ASSUME_SEND_SYSCALL.
2017-03-11If sunrpc code is disabled, rpcsvc header files, rpcgen andThorsten Kukuk2-6/+15
librpcsvc.a should not be installed, too. * sunrpc/Makefile: don't build and install rpcsvc header files, rpcgen and librpcsvc.a by default. Signed-off-by: Thorsten Kukuk <kukuk@suse.com>
2017-03-10Update auto-libm-test-out for catan / catanh.Stefan Liebler4-912/+918
I've used gmp 6.1.2, mpfr 3.1.5 and upstream mpc with fix in mpc_atan (https://scm.gforge.inria.fr/anonscm/gitweb?p=mpc/mpc.git;a=commit;h=958aac9b15a659d6fb5edcb11778123f8a35b14f) to build gen-auto-libm-tests and regenerated catan / catanh out files. Regenerated ULPs for s390 from scratch. Now the catan / catanh tests are passing. ChangeLog: * math/auto-libm-test-out-catan: Regenerated. * math/auto-libm-test-out-catanh: Likewise. * sysdeps/s390/fpu/libm-test-ulps: Likewise.
2017-03-09Regenerate MIPS catan, catanh long double ulps.Joseph Myers2-16/+21
This patch regenerates MIPS catan and catanh ulps for long double with fixed expected results for the tests of those functions. ulps for other types (which may see variation depending on whether glibc is built for a processor with fused multiply-add support) are deliberately not reduced. ulps are not regenerated for powerpc-nofpu as such regeneration does not result in any changes for long double. * sysdeps/mips/mips64/libm-test-ulps: Update catan and catanh ulps for long double with corrected test expectations.
2017-03-09Consolidate Linux send implementationAdhemerval Zanella23-77/+62
This patch consolidates the send Linux syscall implementation on sysdeps/unix/sysv/linux/send{to}.c. The changes are: 1. Remove send from auto-generation syscalls.list on the architecture that uses __NR_send. 2. Define __NR_send for architectures that supports it. It was done instead of defining in default kernel-features.h because current Linux practice for new ports are to implement only __NR_sendto [1] and it will require adding new kernel-features for ports that do not require it (aarch64 for instance). 3. Remove __ASSUME_SENDTO_FOR_SEND_SYSCALL and decide to use __NR_sendto for send generation based on __ASSUME_SENDTO_SYSCALL. 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/sysdep.h (HAVE_INTERNAL_SEND_SYMBOL): Define. * sysdeps/unix/sysv/linux/aarch64/sysdep.h (HAVE_INTERNAL_SEND_SYMBOL): Undefine. * sysdeps/unix/sysv/linux/nios2/sysdep.h (HAVE_INTERNAL_SEND_SYMBOL): Likewise. * sysdeps/unix/sysv/linux/tile/sysdep.h (HAVE_INTERNAL_SEND_SYMBOL): Likewise. * sysdeps/unix/sysv/linux/alpha/kernel-features.h (__ASSUME_RECV_SYSCALL): Define. * sysdeps/unix/sysv/linux/arm/kernel-features.h (__ASSUME_RECV_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/hppa/kernel-features.h (__ASSUME_RECV_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/ia64/kernel-features.h (__ASSUME_RECV_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/kernel-features.h (__ASSUME_RECV_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/i386/kernel-features.h (__ASSUME_SENDTO_FOR_SEND_SYSCALL): Remove define. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_SENDTO_FOR_SEND_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_SENDTO_FOR_SEND_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove send from auto-generation list. * sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewike. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/send.c: Simplify includes. (__ASSUME_SENDTO_FOR_SEND_SYSCALL): Replace by __ASSUME_SENDTO_SYSCALL. * sysdeps/unix/sysv/linux/x86_64/send.c: Remove file. * sysdeps/unix/sysv/linux/mips/mips64/send.c: Likewise. * sysdeps/unix/sysv/linux/generic/send.c: Likewise.
2017-03-09Consolidate Linux sendto implementationAdhemerval Zanella17-19/+30
This patch consolidates the sendto Linux syscall implementation on sysdeps/unix/sysv/linux/sendto.c. The changes are: 1. Define __ASSUME_SENDTO_SYSCALL by default. 2. Undef it for architectures that do not support __NR_sendto. 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/alpha/syscalls.list: Remove sendto from auto-generation list. * sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Define by default. * sysdeps/unix/sysv/linux/i386/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Undef it is kernel does not support __NR_sendto. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Remove definition. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sh/kernel-features.h: (__ASSUME_SENDTO_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sendto.c: Simplify includes.
2017-03-09Consolidate Linux recv implementationAdhemerval Zanella19-81/+42
This patch consolidates the recv Linux syscall implementation on sysdeps/unix/sysv/linux/recv.c. The changes are: 1. Remove recv from auto-generation syscalls.list on the architecture that uses __NR_recv. 2. Define __NR_recv for architectures that supports it. It was done instead of defining in default kernel-features.h because current Linux practice for new ports is to implement only __NR_recvfrom [1] and it will require adding new kernel-features for ports that do not require it (aarch64 for instance). 3. Remove __ASSUME_RECVFROM_FOR_RECV_SYSCALL and decide to use __NR_recvfrom for recv generation based on __ASSUME_RECVFROM_SYSCALL. 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/alpha/syscalls.list: Remove recv from auto-generation list. * sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/alpha/kernel-features.h (__ASSUME_RECV_SYSCALL): New define. * sysdeps/unix/sysv/linux/arm/kernel-features.h (__ASSUME_RECV_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/hppa/kernel-features.h (__ASSUME_RECV_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/ia64/kernel-features.h (__ASSUME_RECV_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/kernel-features.h (__ASSUME_RECV_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/i386/kernel-features.h (__ASSUME_RECVFROM_FOR_RECV_SYSCALL): Remove define. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_RECVFROM_FOR_RECV_SYSCALL): Remove define. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_RECVFROM_FOR_RECV_SYSCALL): Remove define. * sysdeps/unix/sysv/linux/generic/recv.c: Remove file. * sysdeps/unix/sysv/linux/mips/mips64/recv.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/recv.c: Likewise. * sysdeps/unix/sysv/linux/recv.c: Simplify includes. (__libc_recv): Use __ASSUME_RECVFROM_SYSCALL instead of __ASSUME_RECVFROM_FOR_RECV_SYSCALL to issue recvfrom syscall. [1] include/asm-generic/unistd.h (__ARCH_WANT_SYSCALL_DEPRECATED)
2017-03-09Consolidate Linux recvfrom implementationAdhemerval Zanella18-19/+33
This patch consolidates the recvfrom Linux syscall implementation on sysdeps/unix/sysv/linux/recvfrom.c. The changes are: 1. Define __ASSUME_RECVFROM_SYSCALL by default 2. Undef it for architectures that do not support __NR_recvfrom. 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/alpha/syscalls.list: Remove recvfrom from auto-generation list. * sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/i386/kernel-features.h * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Define by default. (__ASSUME_RECVFROM_SYSCALL): Undef it if kernel does not support __NR_recvfrom. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Remove definition. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sh/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/recvfrom.c: Simplify includes.
2017-03-09Consolidate Linux connect implementationAdhemerval Zanella15-16/+26
This patch consolidates the connect Linux syscall implementation on sysdeps/unix/sysv/linux/accept.c. The changes are: 1. Remove connect from auto-generation syscalls.list on the architecture that uses __NR_connect. 2. Define __NR_connect as default (__ASSUME_CONNECT_SYSCALL) and undef for architectures that do not support it. 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/alpha/syscalls.list: Remove connect from auto-generation list. * sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/connect.c: Simplify include list. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_CONNECT_SYSCALL): Define. * sysdeps/unix/sysv/linux/i386/kernel-features.h (__ASSUME_CONNECT_SYSCALL): Undef if kernel does not support it. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_CONNECT_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_CONNECT_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/kernel-features.h (__ASSUME_CONNECT_SYSCALL): Likewise.
2017-03-09Consolidate Linux accept implementationAdhemerval Zanella18-20/+45
This patch consolidates the accept Linux syscall implementation on sysdeps/unix/sysv/linux/accept.c. The changes are: 1. Remove accept from auto-generation syscalls.list on the architecture that uses __NR_accept. 2. Define __NR_accept as default (__ASSUME_ACCEPT_SYSCALL) and undef for architectures that do not support it. 3. Remove __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL and decide to use __NR_accept4 for accept generation based on __ASSUME_ACCEPT4_SYSCALL. 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/accept.c (__libc_accept): Replace __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL by __ASSUME_ACCEPT4_SYSCALL. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove accept from auto-generation list. * sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/i386/kernel-features.h (__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define. (__ASSUME_ACCEPT_SYSCALL): Undefine. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_ACCEPT_SYSCALL): New define. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define. (__ASSUME_ACCEPT_SYSCALL): Define wheter kernel version supports. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_ACCEPT_SYSCALL): Define. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h (__ASSUME_ACCEPT_SYSCALL): Undefine. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define. (__ASSUME_ACCEPT_SYSCALL): Undefine. * sysdeps/unix/sysv/linux/sh/kernel-features.h (__ASSUME_ACCEPT_SYSCALL): Undefine. * sysdeps/unix/sysv/linux/sparc/kernel-features.h (__ASSUME_ACCEPT_SYSCALL): Undefine for 32 bits.
2017-03-08Test for correct setting of errno.Yury Norov5-2/+305
This patch adds tests for POSIX and Linux specific syscalls that implemented with syscall templates machinery. The reason of tests is to receive the expected error code and test if it's handled properly by glibc. 2017-03-08 Yury Norov <ynorov@caviumnetworks.com> Zack Weinberg <zackw@panix.com> * posix/test-errno.c: New file. * posix/Makefile (tests): Add test-errno. * sysdeps/unix/sysv/linux/test-errno.c: New file. * sysdeps/unix/sysv/linux/Makefile (tests): Add test-errno.
2017-03-08S390: Regenerate ULPsStefan Liebler2-128/+140
Updated ulps file. There are still fails for long double catan / catanh due to MPC bug. See post from Joseph Myers: https://www.sourceware.org/ml/libc-alpha/2017-03/msg00099.html ChangeLog: * sysdeps/s390/fpu/libm-test-ulps: Regenerated.
2017-03-07Fix auto-merge issue in ChangeLogFlorian Weimer1-2/+0
2017-03-07tzset: Clean up preprocessor macros min, max, signFlorian Weimer2-7/+15
2017-03-07timezone: Remove TZNAME_MAX limit from sysconf [BZ #15576]Florian Weimer7-79/+28
glibc does not impose a limit, and POSIX does not allow a sysconf limit which changes during the lifetime of a process.
2017-03-07Ignore and remove LD_HWCAP_MASK for AT_SECURE programs (bug #21209)Siddhesh Poyarekar5-2/+27
The LD_HWCAP_MASK environment variable may alter the selection of function variants for some architectures. For AT_SECURE process it means that if an outdated routine has a bug that would otherwise not affect newer platforms by default, LD_HWCAP_MASK will allow that bug to be exploited. To be on the safe side, ignore and disable LD_HWCAP_MASK for setuid binaries. [BZ #21209] * elf/rtld.c (process_envvars): Ignore LD_HWCAP_MASK for AT_SECURE processes. * sysdeps/generic/unsecvars.h: Add LD_HWCAP_MASK. * elf/tst-env-setuid.c (test_parent): Test LD_HWCAP_MASK. (test_child): Likewise. * elf/Makefile (tst-env-setuid-ENV): Add LD_HWCAP_MASK.
2017-03-07hppa: set __IPC_64 as zero for SysV IPC callsAdhemerval Zanella2-0/+25
In 1e5834c38a22 ("Refactor Linux ipc_priv header") a different approach to passing __IPC_64 as zero was created. Hppa kernel ABI requires to oass __IPC_64 as zero since it does not set CONFIG_ARCH_WANT_IPC_PARSE_VERSION in the kernel. Checked on hppa-linux-gnu with some adjustments to avoid BZ#21016 (basically by removing hppa compat implementations and adjusting required headers). * sysdeps/unix/sysv/linux/hppa/ipc_priv.h: New file.
2017-03-06S390: Optimize atomic macros.Stefan Liebler2-64/+124
This patch activates C11 atomic builtins by defining USE_ATOMIC_COMPILER_BUILTINS to 1. Note: E.g. in nptl/pthread_key_delete.c if compiled with GCCs 6 and before, an extra stack-frame is generated and the old value is stored on stack before cs instruction but it never loads this value from stack. An unreleased GCC 7 omit those stack operations. E.g. in nptl/pthread_once.c the condition code of cs instruction is evaluated by a sequence of ipm, sra, compare and jump instructions instead of one conditional jump instruction. This also occurs with an unreleased GCC 7. These shortcomings does not really hurt. Nevertheless, the gcc guys are investigating those ones and plan to fix them before GCC 7 release. The atomic_fetch_abc_def C11 builtins are now using load-and-abc instructions on z196 zarch and higher cpus instead of a loop with compare-and-swap instruction. Some of the non-C11 atomic macros from include/atomic.h are now implemented with help of the C11 atomic builtins. The other non-C11 atomic macros are using the macros defined here. ChangeLog: * sysdeps/s390/atomic-machine.h (USE_ATOMIC_COMPILER_BUILTINS): Define to 1. (__arch_compare_and_exchange_val_8_acq, __arch_compare_and_exchange_val_16_acq, __arch_compare_and_exchange_val_32_acq, __arch_compare_and_exchange_val_64_acq): Delete macro. (atomic_compare_and_exchange_val_acq, atomic_compare_and_exchange_val_rel, atomic_compare_and_exchange_bool_acq, catomic_compare_and_exchange_bool_acq, atomic_exchange_acq, atomic_exchange_rel, atomic_exchange_and_add_acq, atomic_exchange_and_add_rel, catomic_exchange_and_add, atomic_or_val, atomic_or, catomic_or, atomic_bit_test_set, atomic_and_val, atomic_and, catomic_and): Define macros with help of C11 atomic builtins.
generated by cgit v1.1 at 2024-08-30 02:40:15 +0000