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* Move ____longjmp_chk prototype to include/setjmp.hH.J. Lu2017-08-201-0/+6
| | | | | | | | | Move ____longjmp_chk prototype to include/setjmp.h and add attribute_hidden. * debug/longjmp_chk.c (____longjmp_chk): Moved to ... * include/setjmp.h (____longjmp_chk): Here. Add attribute_hidden.
* Mark internal SSE2 functions with attribute_hidden [BZ #18822]H.J. Lu2017-08-191-0/+7
| | | | | | | | | | Mark internal SSE2 functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * sysdeps/x86_64/multiarch/strcspn-c.c (STRCSPN_SSE2): Add attribute_hidden. (__strspn_sse2): Likewise.
* Consolidate non cancellable close callAdhemerval Zanella2017-08-181-0/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates all the non cancellable close calls to use the __close_nocancel{_nostatus} identifier. For non cancellable targets it will be just a macro to call the default respective symbol while on Linux will be a internal one. Also, since it is used on libcrypto it is also exported in GLIBC_PRIVATE namespace. Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu. * sysdeps/generic/not-cancel.h (close_not_cancel): Remove macro. (close_not_cancel_no_status): Likewise. (__close_nocancel): New macro. (__close_nocancel_no_status): Likewise. * sysdeps/unix/sysv/linux/not-cancel.h (__close_nocancel): Remove macro. (close_not_cancel): Likewise. (close_not_cancel_no_status): Likewise. (__close_nocancel): New prototype. (__close_nocancel_no_status): New function. * sysdeps/unix/sysv/linux/close.c (__close_nocancel): New function. * catgets/open_catalog.c (__open_catalog): Replace close_not_cancel{_no_status) with __close_nocancel{_nostatus}. * gmon/gmon.c (write_gmon): Likewise. * iconv/gconv_cache.c (__gconv_load_cache): Likewise. * intl/loadmsgcat.c (close): Likewise. * io/ftw.c (open_dir_stream): Likewise. (ftw_startup): Likewise. * libio/fileops.c (_IO_file_open): Likewise. (_IO_file_close_mmap): Likewise. (_IO_file_close): Likewise. * libio/iopopen.c (_IO_dup2): Likewise. * locale/loadarchive.c (_nl_load_locale_from_archive): Likewise. * locale/loadlocale.c (_nl_load_locale): Likewise. * login/utmp_file.c (pututline_file): Likewise. (endutent_file): Likewise. * misc/daemon.c (daemon): Likewise. * nscd/nscd_getai.c (__nscd_getai): Likewise. * nscd/nscd_getgr_r.c (nscd_getgr_r): Likewise. * nscd/nscd_gethst_r.c (nscd_gethst_r): Likewise. * nscd/nscd_getpw_r.c (nscd_getpw_r): Likewise. * nscd/nscd_getserv_r.c (nscd_getserv_r): Likewise. * nscd/nscd_helper.c (open_socket): Likewise. (__nscd_open_socket): Likewise. * nscd/nscd_initgroups.c (__nscd_getgrouplist): Likewise. * nscd/nscd_netgroup.c (__nscd_setnetgrent): Likewise. (__nscd_innetgr): Likewise. * nss/nss_db/db-open.c (internal_setent): Likewise. * resolv/res-close.c (__res_iclose): Likewise. * sunrpc/pm_getmaps.c (pmap_getmaps): Likewise. * sysdeps/posix/closedir.c (__closedir): Likewise. * sysdeps/posix/getaddrinfo.c (getaddrinfo): Likewise. * sysdeps/posix/getcwd.c (__getcwd): Likewise. * sysdeps/posix/opendir.c (tryopen_o_directory): Likewise. (opendir_tail): Likewise. * sysdeps/posix/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/check_native.c (__check_native): Likewise. * sysdeps/unix/sysv/linux/check_pf.c (__check_pf): Likewise. * sysdeps/unix/sysv/linux/fips-private.h (fips_enabled_p): Likewise. * sysdeps/unix/sysv/linux/gethostid.c (sethostid): Likewise. (gethostid): Likewise. * sysdeps/unix/sysv/linux/getloadavg.c (getloadavg): Likewise. * sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid): Likewise. * sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs): Likewise. * sysdeps/unix/sysv/linux/grantpt.c (close_all_fds): Likewise. * sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise. * sysdeps/unix/sysv/linux/ia64/has_cpuclock.c (has_cpuclock): Likewise. * sysdeps/unix/sysv/linux/if_index.c (__if_nametoindex): Likewise. * sysdeps/unix/sysv/linux/libc_fatal.c (backtrace_and_maps): Likewise. * sysdeps/unix/sysv/linux/malloc-sysdep.h (check_may_shrink_heap): Likewise. * sysdeps/unix/sysv/linux/mq_notify.c (init_mq_netlink): Likewise. * sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np): Likewise. * sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np): Likewise. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/sysconf.c (__sysconf): Likewise.
* Consolidate non cancellable openat callAdhemerval Zanella2017-08-181-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates all the non cancellable openat{64} calls to use the __openat{64}_nocancel identifier. For non cancellable targets it will be just a macro to call the default respective symbol while on Linux will be a internal one. Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu. * sysdeps/generic/not-cancel.h (openat_not_cancel): Remove macro. (openat_not_cancel_3): Likewise. (openat64_not_cancel_3): Likewise). (openat_not_cancel_3): Likewise). * sysdeps/unix/sysv/linux/not-cancel.h (openat_not_cancel): Remove macro. (openat_not_cancel_3): Likewise. (openat64_not_cancel): Likewise. (openat64_not_cancel_3): Likewise. * sysdeps/unix/sysv/linux/openat.c (__openat_nocancel): New function. * sysdeps/unix/sysv/linux/openat64.c (__openat64_nocancel): Likewise. * io/ftw.c (open_dir_stream): Replace openat{64}_not_cancel{_3} with __open{64}_nocancel. * sysdeps/mach/hurd/opendir.c (__opendirat): Likewise. * sysdeps/posix/getcwd.c (__getcwd): Likewise. * sysdeps/posix/opendir.c (__opendirat): Likewise.
* Mark internal argz functions with attribute_hidden [BZ #18822]H.J. Lu2017-08-181-0/+18
| | | | | | | | | | | | | | | | | | | | | | | Move internal argz function prototypes to include/argz.h and mark them with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. This also brings string/argz.h closer to the gnulib version. [BZ #18822] * include/argz.h (__argz_create_sep): New function prototype. (__argz_append): Likewise. (__argz_add): Likewise. (__argz_add_sep): Likewise. (__argz_delete): Likewise. (__argz_insert): Likewise. (__argz_replace): Likewise. * string/argz.h (__argz_create_sep): Removed. (__argz_append): Likewise. (__argz_add): Likewise. (__argz_add_sep): Likewise. (__argz_delete): Likewise. (__argz_insert): Likewise. (__argz_replace): Likewise.
* Add NT_GNU_PROPERTY_TYPE_0 macrosH.J. Lu2017-08-181-0/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add macros used in GNU .note.gnu.property notes (NT_GNU_PROPERTY_TYPE_0). * elf/elf.h (NT_GNU_PROPERTY_TYPE_0): New. (NOTE_GNU_PROPERTY_SECTION_NAME): Likewise. (GNU_PROPERTY_STACK_SIZE): Likewie. (GNU_PROPERTY_NO_COPY_ON_PROTECTED): Likewie. (GNU_PROPERTY_LOPROC): Likewise. (GNU_PROPERTY_HIPROC): Likewise. (GNU_PROPERTY_LOUSER): Likewise. (GNU_PROPERTY_HIUSER): Likewise. (GNU_PROPERTY_X86_ISA_1_USED): Likwise. (GNU_PROPERTY_X86_ISA_1_NEEDED): Likwise. (GNU_PROPERTY_X86_FEATURE_1_AND): Likwise. (GNU_PROPERTY_X86_ISA_1_486): Likwise. (GNU_PROPERTY_X86_ISA_1_586): Likwise. (GNU_PROPERTY_X86_ISA_1_686): Likwise. (GNU_PROPERTY_X86_ISA_1_SSE): Likwise. (GNU_PROPERTY_X86_ISA_1_SSE2): Likwise. (GNU_PROPERTY_X86_ISA_1_SSE3): Likwise. (GNU_PROPERTY_X86_ISA_1_SSSE3): Likwise. (GNU_PROPERTY_X86_ISA_1_SSE4_1): Likwise. (GNU_PROPERTY_X86_ISA_1_SSE4_2): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX2): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX512F): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX512CD): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX512ER): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX512PF): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX512VL): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX512DQ): Likwise. (GNU_PROPERTY_X86_ISA_1_AVX512BW): Likwise. (GNU_PROPERTY_X86_FEATURE_1_IBT): Likwise. (GNU_PROPERTY_X86_FEATURE_1_SHSTK): Likwise.
* Do not use generic selection in C++ modeGabriel F. T. Gomes2017-08-181-0/+5
| | | | | | | | | | | The logic to protect the use of generic selection (_Generic) does not check for C or C++ mode, however, generic selection is a C-only feature. Tested for powerpc64le. * misc/sys/cdefs.h (__HAVE_GENERIC_SELECTION): Define to 0, if in C++ mode.
* Do not use __builtin_types_compatible_p in C++ mode (bug 21930)Gabriel F. T. Gomes2017-08-181-0/+6
| | | | | | | | | | | | | | | | | The logic to define isinf for float128 depends on the availability of __builtin_types_compatible_p, which is only available in C mode, however, the conditionals do not check for C or C++ mode. This lead to an error in libstdc++ configure, as reported by bug 21930. This patch adds a conditional for C mode in the definition of isinf for float128. No definition is provided in C++ mode, since libstdc++ headers undefine isinf. Tested for powerpc64le (glibc test suite and libstdc++-v3 configure). [BZ #21930] * math/math.h (isinf): Check if in C or C++ mode before using __builtin_types_compatible_p, since this is a C mode feature.
* Consolidate non cancellable write callAdhemerval Zanella2017-08-181-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates all the non cancellable write calls to use the __write_nocancel identifier. For non cancellable targets it will be just a macro to call the default respective symbol while on Linux will be a internal one. Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu. * sysdeps/generic/not-cancel.h (write_not_cancel): Remove macro. (__write_nocancel): New macro. * sysdeps/unix/sysv/linux/not-cancel.h (__write_nocancel): Rewrite as a function prototype. (write_not_cancel): Remove macro. * sysdeps/unix/sysv/linux/write.c (__write_nocancel): New function. * gmon/gmon.c (ERR): Replace write_not_cancel with __write_nocancel. (write_gmon): Likewise. * libio/fileops.c (_IO_new_file_write): Likewise. * login/utmp_file.c (pututline_file): Likewise. (updwtmp_file): Likewise. * stdio-common/psiginfo.c (psiginfo): Likewise. * sysdeps/posix/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/gethostid.c (sethostid): Likewise. * sysdeps/unix/sysv/linux/libc_fatal.c (backtrace_and_maps): Likewise. * sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np): Likewise.
* Consolidate non cancellable read callAdhemerval Zanella2017-08-181-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates all the non cancellable read calls to use the __read_nocancel identifier. For non cancellable targets it will be just a macro to call the default respective symbol while on Linux will be a internal one. Also, since it is used on libcrypto it is also exported in GLIBC_PRIVATE namespace. Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu. * sysdeps/generic/not-cancel.h (read_not_cancel): Remove macro. (__read_nocancel): New macro. * sysdeps/unix/sysv/linux/Versions (libc) [GLIBC_PRIVATE]: Add __read_nocancel. * sysdeps/unix/sysv/linux/not-cancel.h (__read_nocancel): Remove macro. (__read_nocancel): New prototype. * sysdeps/unix/sysv/linux/read.c (__read_nocancel): New function. * catgets/open_catalog.c (__open_catalog): Replace read_not_cancel with __read_nocancel. * intl/loadmsgcat.c (read): Likewise. * libio/fileops.c (_IO_file_read): Likewise. * locale/loadlocale.c (_nl_load_locale): Likewise. * login/utmp_file.c (getutent_r_file): Likewise. (internal_getut_r): Likewise. (getutline_r_file): Likewise. * sysdeps/unix/sysv/linux/fips-private.h (fips_enable_p): Likewise. * sysdeps/unix/sysv/linux/gethostid.c (gethostid): Likewise. * sysdeps/unix/sysv/linux/getloadavg.c (getloadavg): Likewise. * sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid): Likewise. * sysdeps/unix/sysv/linux/getsysstats.c (next_line): Likewise. * sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise. * sysdeps/unix/sysv/linux/ia64/has_cpuclock.c (has_cpuclock): Likewise. * sysdeps/unix/sysv/linux/libc_fatal.c (backtrace_and_maps): Likewise. * sysdeps/unix/sysv/linux/malloc-sysdep.h (check_may_shrink_heap): Likewise. * sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np): Likewise. * sysdeps/unix/sysv/linux/sysconf.c (__sysconf): Likewise.
* x86-64: Check FMA_Usable in ifunc-mathvec-avx2.h [BZ #21966]H.J. Lu2017-08-181-0/+7
| | | | | | | | | | Since the AVX2 version of mathvec functions uses FMA, it can only be used when FMA is usable. [BZ #21966] * sysdeps/x86_64/fpu/multiarch/ifunc-mathvec-avx2.h (IFUNC_SELECTOR): Don't use the AVX2 version if FMA isn't usable.
* Update nss tests to new skeletonDJ Delorie2017-08-171-0/+14
| | | | | | | | | | | | | | * bug17079.c: Update to new test harness. * test-digits-dots.c: Likewise. * test-netdb.c: Likewise. * tst-field.c: Likewise. * tst-nss-getpwent.c: Likewise. * tst-nss-static.c: Likewise. * tst-nss-test1.c: Likewise. * tst-nss-test2.c: Likewise. * tst-nss-test3.c: Likewise. * tst-nss-test4.c: Likewise. * tst-nss-test5.c: Likewise.
* Consolidate non cancellable open callAdhemerval Zanella2017-08-171-0/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates all the non cancellable open calls to use the __open_nocancel identifier. For non cancellable targets it will be just a macro to call the default respective symbol while on Linux will be a internal one. To be consistent with the following non cancellable openat call, a new __open64_nocancel is also added (although not currently used). Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu. * sysdeps/generic/not-cancel.h (open_not_cancel): Remove macro. (open_not_cancel_2): Likewise. (open_nocancel): New macro. (open64_nocancel): Likewise. * sysdeps/unix/sysv/linux/not-cancel.h (open_not_cancel): Remove macro. (open_not_cancel_2): Likewise. (__open_nocancel): New prototype. (__open64_nocancel): Likewise. * sysdeps/unix/sysv/linux/Versions (libc) [GLIBC_PRIVATE]: Add __open_nocancel. * sysdeps/unix/sysv/linux/open.c (__open_nocancel): New function. * sysdeps/unix/sysv/linux/open64.c (__open64_nocancel): Likewise. * catgets/open_catalog.c (__open_catalog): Replace open_not_cancel{_2} with __open_nocancel. * csu/check_fds.c (check_one_fd): Likewise. * gmon/gmon.c (write_gmon): Likewise. * iconv/gconv_cache.c (__gconv_load_cached): Likewise. * intl/loadmsgcat.c (open): Likewise. * libio/fileops.c (_IO_file_open): Likewise. * locale/loadarchive.c (_nl_load_locale_from_archive): Likewise. * locale/loadlocale.c (_nl_load_locale): Likewise. * login/utmp_file.c (setutent_file): Likewise. * misc/daemon.c (daemon): Likewise. * nss/nss_db/db-open.c (internal_setent): Likewise. * sysdeps/mach/hurd/opendir.c (__opendirat): Likewise. * sysdeps/posix/libc_fatal.c (__libc_message): Likewise. * sysdeps/posix/opendir.c (tryopen_o_directory): Likewise. (__opendir): Likewise. * sysdeps/posix/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/fips-private.h (fips_enable_p): Likewise. * sysdeps/unix/sysv/linux/gethostid.c (sethostid): Likewise. (gethostid): Likewise. * sysdeps/unix/sysv/linux/getloadavg.c (getloadavg): Likewise. * sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid): Likewise. * sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs): Likewise. * sysdeps/unix/sysv/linux/grantpt.c (__close_all_fds): Likewise. * sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise. * sysdeps/unix/sysv/linux/ia64/has_cpuclock.c (has_cpuclock): Likewise. * sysdeps/unix/sysv/linux/libc_fatal.c (backtrace_and_maps): Likewise. * sysdeps/unix/sysv/linux/malloc-sysdep.h (check_may_shrink_heap): Likewise. * sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c (__get_clockfreq): Likewise. * sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np): Likewise. * sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np): Likewise. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/sysconf.c (__sysconf): Likewise.
* Add math benchmark latency testWilco Dijkstra2017-08-171-0/+6
| | | | | | | | | | | | | | | | | | | | | | This patch further improves math function benchmarking by adding a latency test in addition to throughput. This enables more accurate comparisons of the math functions. The latency test works by creating a dependency on the previous iteration: func_res = F (func_res * zero + input[i]). The multiply by zero avoids changing the input. It reports reciprocal throughput and latency in nanoseconds (depending on the timing header used) and max/min throughput in iterations per second: "workload-spec2006.wrf": { "reciprocal-throughput": 100, "latency": 200, "max-throughput": 1.0e+07, "min-throughput": 5.0e+06 } * benchtests/bench-skeleton.c (main): Add support for latency benchmarking. * benchtests/scripts/bench.py: Add support for latency benchmarking.
* Support mcount/gprof test with GCC defaulting to PIEH.J. Lu2017-08-171-0/+5
| | | | | | | The mcount/gprof test should be linked with gcrt1.o, not Scrt1.o. * Makeconfig (+link-pie-before-libc): Add CRT-* hook to override the startup object.
* __opensock: Remove internal_function attributeFlorian Weimer2017-08-171-0/+6
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* Fix sigval namespace (bug 21944).Joseph Myers2017-08-161-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | XPG4.2 defines the siginfo_t type, but not union sigval or its contents (which were added in the 1993 edition of POSIX.1), resulting in namespace violations for sigval, sival_int and sival_ptr for signal.h and sys/wait.h for that standard because those headers incorrectly expose those names in that case. This patch fixes this problem. The public type in this case is union sigval, but various places in the headers use the sigval_t name for it; direct uses of union sigval are already properly guarded or in headers not in XPG4.2. Now, sigval_t, although not a standard name, does seem to be widely used outside glibc. The approach taken by this patch is to make installed headers use the name __sigval_t instead. __sigval_t is then defined to either union sigval or union __sigval (where union __sigval has __-prefixed member names as well), depending on whether there are any namespace issues with the union sigval name and its members. In the case where union __sigval is used, sigval_t is not defined at all, to avoid the problem of sigval_t having a C++ mangled name that depends on feature test macros. sigval_t is still defined by signal.h if __USE_MISC (reflecting the nonstandard nature of that name). Tested for x86_64. [BZ #21944] * signal/bits/types/__sigval_t.h: New file. * signal/Makefile (headers): Add bits/types/__sigval_t.h. * signal/bits/types/sigval_t.h: Include <bits/types/__sigval_t.h> and define sigval_t using __sigval_t. * include/bits/types/__sigval_t.h: New file. * bits/types/sigevent_t.h: Include <bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>. (struct sigevent): Use __sigval_t instead of sigval_t. * bits/types/siginfo_t.h: Include <bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>. (siginfo_t): Use __sigval_t instead of sigval_t. * sysdeps/unix/sysv/linux/bits/types/sigevent_t.h: Include <bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>. (struct sigevent): Use __sigval_t instead of sigval_t. * sysdeps/unix/sysv/linux/bits/types/siginfo_t.h: Include <bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>. (siginfo_t): Use __sigval_t instead of sigval_t. * signal/signal.h [__USE_MISC]: Include <bits/types/sigval_t.h>.
* Remove "[Add new features here]" for 2.27H.J. Lu2017-08-161-0/+4
| | | | * NEWS: Remove "[Add new features here]" for 2.27.
* Allow abort PLT references in libc.so for SH.Joseph Myers2017-08-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | Given my patch <https://gcc.gnu.org/ml/gcc-patches/2017-08/msg00965.html> for the ICEs building a glibc string function test for SH, the testsuite can build completely for SH with GCC 7 and mainline. However, there is a test failure that does not appear for GCC 6: check-localplt fails because of an abort PLT reference in libc.so. Given the lack of a trap insn pattern for SH, it seems unavoidable that the compiler might sometimes generate abort calls, and such abort calls (generated from __builtin_trap when there is no trap insn pattern) will be unaffected by the normal mapping to __GI_abort for calls within glibc. Thus, this patch allows (but does not require) an abort PLT reference in libc.so for SH. Tested for sh4-linux-gnu with build-many-glibcs.py (GCC 7, with my patch applied). * sysdeps/unix/sysv/linux/sh/localplt.data: Allow abort in libc.so.
* Mention x86-64 FMA optimization in NEWSH.J. Lu2017-08-161-0/+4
| | | | * NEWS: Mention x86-64 FMA optimization.
* x86-64: Optimize e_expf with FMA [BZ #21912]H.J. Lu2017-08-161-0/+9
| | | | | | | | | | | FMA optimized e_expf improves performance by more than 50% on Skylake. [BZ #21912] * sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines): Add e_expf-fma. * sysdeps/x86_64/fpu/multiarch/e_expf-fma.S: New file. * sysdeps/x86_64/fpu/multiarch/e_expf.c: Likewise. * sysdeps/x86_64/fpu/multiarch/ifunc-fma.h: Likewise.
* Add ChangeLog reference to bug 16750/CVE-2009-5064Florian Weimer2017-08-161-0/+2
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* ldd: never run file directlyAndreas Schwab2017-08-161-0/+4
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* x86-64: Align L(SP_RANGE)/L(SP_INF_0) to 8 bytes [BZ #21955]H.J. Lu2017-08-151-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sysdeps/x86_64/fpu/e_expf.S has lea L(SP_RANGE)(%rip), %rdx /* load over/underflow bound */ cmpl (%rdx,%rax,4), %ecx /* |x|<under/overflow bound ? */ ... /* Here if |x| is Inf */ lea L(SP_INF_0)(%rip), %rdx /* depending on sign of x: */ movss (%rdx,%rax,4), %xmm0 /* return zero or Inf */ ret ... .section .rodata.cst8,"aM",@progbits,8 ... .p2align 2 L(SP_RANGE): /* single precision overflow/underflow bounds */ .long 0x42b17217 /* if x>this bound, then result overflows */ .long 0x42cff1b4 /* if x<this bound, then result underflows */ .type L(SP_RANGE), @object ASM_SIZE_DIRECTIVE(L(SP_RANGE)) .p2align 2 L(SP_INF_0): .long 0x7f800000 /* single precision Inf */ .long 0 /* single precision zero */ .type L(SP_INF_0), @object ASM_SIZE_DIRECTIVE(L(SP_INF_0)) Since L(SP_RANGE) and L(SP_INF_0) are in .rodata.cst8 section, they must be aligned to 8 bytes. [BZ #21955] * sysdeps/x86_64/fpu/e_expf.S (L(SP_RANGE)): Aligned to 8 bytes. (L(SP_INF_0)): Likewise.
* gmon: Run tst-gmon-prof only for run-built-tests=yesFlorian Weimer2017-08-151-0/+5
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* aio: Remove support for BROKEN_THREAD_SIGNALSFlorian Weimer2017-08-151-0/+14
| | | | | This was originally added to support LinuxThreads and is not needed for NPTL.
* gmon: Add test for basic mcount/gprof functionalityFlorian Weimer2017-08-151-0/+15
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* powerpc: Add values from Linux 4.8 to <elf.h>Gustavo Romero2017-08-151-0/+16
| | | | | | | | | | | | | | | | | | Add powerpc specific note sections available since Linux v4.8. * elf/elf.h A (NT_PPC_TAR): New macro. (NT_PPC_PPR): Likewise. (NT_PPC_DSCR): Likewise. (NT_PPC_EBB): Likewise. (NT_PPC_PMU): Likewise. (NT_PPC_TM_CGPR): Likewise. (NT_PPC_TM_CFPR): Likewise. (NT_PPC_TM_CVMX): Likewise. (NT_PPC_TM_CVSX): Likewise. (NT_PPC_TM_SPR): Likewise. (NT_PPC_TM_CTAR): Likewise. (NT_PPC_TM_CPPR): Likewise. (NT_PPC_TM_CDSCR): Likewise.
* i386: Replace internal_function attribute for __mcount_internalFlorian Weimer2017-08-151-0/+6
| | | | | | | | __mcount_internal is called from assembler code. Use an explicit regparm attribute to pass both arguments in registers, to match what used to happen with internal_function before commit fbdc1e3e8de7f49e439b6e274d3e7e07da78416e (i386: Do not set internal_function).
* S390: Add new s390 platform z14.Stefan Liebler2017-08-151-0/+5
| | | | | | | | | | The new IBM z14 is added to platform string array. The macro _DL_PLATFORMS_COUNT is incremented. ChangeLog: * sysdeps/s390/dl-procinfo.c (_dl_s390_cap_flags): Add z14. * sysdeps/s390/dl-procinfo.h (_DL_PLATFORMS_COUNT): Increased.
* conformtest: Disable si_value expectation for XPG42.Joseph Myers2017-08-141-0/+5
| | | | | | | | | | This patch corrects the conform/ expectations for sys/wait.h not to expect si_value for XPG4.2. Tested for x86_64. * conform/data/sys/wait.h-data (si_value): Do not expect for XPG42.
* NSS: Replace exported NSS lookup functions with stubs [BZ #21962]Florian Weimer2017-08-141-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 384ca551743318bd9c9e24a496d6397f2e3f2a49 from 2007 added this to nss/XXX-lookup.c: +#ifndef NO_COMPAT +int +internal_function attribute_compat_text_section +DB_COMPAT_FCT (service_user **ni, const char *fct_name, void **fctp) +{ + return DB_LOOKUP_FCT (ni, fct_name, NULL, fctp); +} +#endif That is, it adds a pseudo-compat function with an internal_function attribute. The function it was supposed to replace did not have the attribute: extern int DB_LOOKUP_FCT (service_user **ni, const char *fct_name, - void **fctp) internal_function; + const char *fct2_name, void **fctp) + internal_function; This changed the calling convention on i386 for the following functions in the public ABI: __nss_passwd_lookup __nss_group_lookup __nss_hosts_lookup This commit replaces the functions with always-failing stubs, with true compat symbols. Due to a happy accident, the calling convention of the stub is identical for the internal_function and non-internal_function case on i386. In addition, this commit auto-generates the __nss_*_lookup2 function declarations as part of <nsswitch.h>.
* posix: Fix mmap for m68k and ia64 (BZ#21908)Adhemerval Zanella2017-08-141-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Default semantic for mmap2 syscall is to take the offset in 4096-byte units. However m68k and ia64 mmap2 implementation take in the configured pageunit units and for both architecture it can be different values. This patch fixes the m68k runtime discover of mmap2 offset unit and adds the ia64 definition to find it at runtime. Checked the basic tst-mmap and tst-mmap-offset on m68k (the system is configured with 4k, so current code is already passing on this system) and a sanity check on x86_64-linux-gnu (which should not be affected by this change). Sergei also states that ia64 loader now work correctly with this change. Adhemerval Zanella <adhemerval.zanella@linaro.org> Sergei Trofimovich <slyfox@inbox.ru> * sysdeps/unix/sysv/linux/m68k/mmap_internal.h (MMAP2_PAGE_SHIFT): Rename to MMAP2_PAGE_UNIT. * sysdeps/unix/sysv/linux/mmap.c: Include mmap_internal iff __OFF_T_MATCHES_OFF64_T is not defined. * sysdeps/unix/sysv/linux/mmap_internal.h (page_unit): Declare as uint64_t. (MMAP2_PAGE_UNIT) [MMAP2_PAGE_UNIT == -1]: Redefine to page_unit. (page_unit) [MMAP2_PAGE_UNIT != -1]: Remove definition.
* i386: Do not set internal_functionFlorian Weimer2017-08-141-0/+7
| | | | | | | | | | All calls to functions with the internal_function attribute have been removed from assembler implementations, which means that the definition of internal_function can be changed at the C level without causing ABI issues with assembler code. _dl_fixup still uses a regparm calling convention on i386, but this is controlled through ARCH_FIXUP_ATTRIBUTE, not internal_function.
* _dl_init: Remove internal_function attributeFlorian Weimer2017-08-141-0/+6
| | | | | The function is called from the i386 startup code, which needs minor adjustments due to the changed ABI.
* _dl_start: Remove internal_function attributeFlorian Weimer2017-08-141-0/+6
| | | | | The i386 startup code needs adjusting because it calls the function and the ABI has changed.
* _dl_fini: Remove internal_function attributeFlorian Weimer2017-08-141-0/+5
| | | | | | | | | | Assembler code passes the address of _dl_fini to __libc_start_main, whose function pointer argument lacks the attribute. This means that calls could use the wrong ABI. Fortunately, for zero-parameter void-returning functions, internal_function does not change ABI on i386 (the only architecture which uses internal_function), so this inconsistency was harmless (which is why it had not been noticed so far).
* x86: Add IBT/SHSTK bits to cpu-featuresH.J. Lu2017-08-141-0/+11
| | | | | | | | | | | | | | | | Add IBT/SHSTK bits to cpu-features for Shadow Stack in Intel Control-flow Enforcement Technology (CET) instructions: https://software.intel.com/sites/default/files/managed/4d/2a/control-flow-enforcement-technology-preview.pdf * sysdeps/x86/cpu-features.h (bit_cpu_BIT): New. (bit_cpu_SHSTK): Likewise. (index_cpu_IBT): Likewise. (index_cpu_SHSTK): Likewise. (reg_IBT): Likewise. (reg_SHSTK): Likewise. * sysdeps/x86/cpu-tunables.c (TUNABLE_CALLBACK (set_hwcaps)): Handle index_cpu_IBT and index_cpu_SHSTK.
* Fix spelling mistake in fr.poMike FABIAN2017-08-141-0/+5
| | | | | [BZ #19982] * po/fr.po: Fix spelling mistake.
* ld.so: Remove internal_function attribute from various functionsFlorian Weimer2017-08-131-0/+14
| | | | | These functions are invoked from other DSOs and should therefore use the standard calling convention.
* Remove internal_function attribute from string-to-float functionsFlorian Weimer2017-08-131-0/+7
| | | | | These are called across DSO boundaries and should therefore use the standard calling convention.
* NPTL: Remove internal_function from stack marking functionsFlorian Weimer2017-08-131-0/+14
| | | | | These are called across DSO boundaries and therefore should use the ABI calling convention.
* __netlink_assert_response: Remove internal_function attributeFlorian Weimer2017-08-131-0/+7
| | | | | This function is called from nscd and should not use a non-standard calling convention.
* __libc_rpc_getport: Remove internal_function attributeFlorian Weimer2017-08-131-0/+6
| | | | | This function has a hidden alias and is therefore expected to be called across DSO boundaries.
* NSS: Do not use internal_function for functions with hidden aliasesFlorian Weimer2017-08-131-0/+14
| | | | | Such functions are called across DSO boundaries and should not use a non-standard ABI.
* __fortify_fail: Remove internal_function attributeFlorian Weimer2017-08-131-0/+10
| | | | | __fortify_fail is called across DSO boundaries, so it should not use a non-standard calling convention.
* Adapt test case data to the changes in the thousands separatorsMike FABIAN2017-08-121-0/+11
| | | | | | | | [BZ #20756] * localedata/tst-langinfo.sh: Adapt test case data. * stdlib/tst-strfmon_l.c: Likewise. * stdlib/tst-strtod4.c: Likewise. * stdlib/tst-strtod5i.c: Likewise.
* assert: Suppress pedantic warning caused by statement expressionFlorian Weimer2017-08-111-0/+7
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* benchtests: Print json in memmove benchmarkSiddhesh Poyarekar2017-08-111-0/+4
| | | | | | | | | | Make the memmove benchmarks (bench-memmove and bench-memmove-large) print their output in JSON so that they can be evaluated using the compare_strings.py script. * benchtests/bench-memmove-large.c: Print output in JSON format. * benchtests/bench-memmove.c: Likewise.
* benchtests: Remove verification runs from benchmark testsSiddhesh Poyarekar2017-08-111-0/+12
| | | | | | | | | | | | | | | The test run is unnecessary and interferes with the benchmark. The tests are done during make check, so they're unnecessary here. * benchtests/bench-memccpy.c (do_one_test): Remove checks. * benchtests/bench-memchr.c (do_one_test): Likewise. * benchtests/bench-memcpy-large.c (do_one_test): Likewise. * benchtests/bench-memcpy.c (do_one_test): Likewise. * benchtests/bench-memmove-large.c (do_one_test): Likewise. * benchtests/bench-memmove.c (do_one_test): Likewise. * benchtests/bench-memset-large.c (do_one_test): Likewise. * benchtests/bench-memset.c (do_one_test): Likewise. * benchtests/bench-string.h (test_init): Remove memsets.
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