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2018-04-13posix: Sync glob with gnulib [BZ #1062]Adhemerval Zanella
This patch syncs posix/glob.c implementation with gnulib version b5ec983 (glob: simplify symlink detection). The only difference to gnulib code is * DT_UNKNOWN, DT_DIR, and DT_LNK definition in the case there were not already defined. Gnulib code which uses HAVE_STRUCT_DIRENT_D_TYPE will redefine them wrongly because GLIBC does not define HAVE_STRUCT_DIRENT_D_TYPE. Instead the patch check for each definition instead. Also, the patch requires additional globfree and globfree64 files for compatibility version on some architectures. Also the code simplification leads to not macro simplification (not need for NO_GLOB_PATTERN_P anymore). Checked on x86_64-linux-gnu and on a build using build-many-glibcs.py for all major architectures. [BZ #1062] * posix/Makefile (routines): Add globfree, globfree64, and glob_pattern_p. * posix/flexmember.h: New file. * posix/glob_internal.h: Likewise. * posix/glob_pattern_p.c: Likewise. * posix/globfree.c: Likewise. * posix/globfree64.c: Likewise. * sysdeps/gnu/globfree64.c: Likewise. * sysdeps/unix/sysv/linux/alpha/globfree.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/globfree64.c: Likewise. * sysdeps/unix/sysv/linux/oldglob.c: Likewise. * sysdeps/unix/sysv/linux/wordsize-64/globfree64.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/globfree.c: Likewise. * sysdeps/wordsize-64/globfree.c: Likewise. * sysdeps/wordsize-64/globfree64.c: Likewise. * posix/glob.c (HAVE_CONFIG_H): Use !_LIBC instead. [NDEBUG): Remove comments. (GLOB_ONLY_P, _AMIGA, VMS): Remove define. (dirent_type): New type. Use uint_fast8_t not uint8_t, as C99 does not require uint8_t. (DT_UNKNOWN, DT_DIR, DT_LNK): New macros. (struct readdir_result): Use dirent_type. Do not define skip_entry unless it is needed; this saves a byte on platforms lacking d_ino. (readdir_result_type, readdir_result_skip_entry): New functions, replacing ... (readdir_result_might_be_symlink, readdir_result_might_be_dir): these functions, which were removed. This makes the callers easier to read. All callers changed. (D_INO_TO_RESULT): Now empty if there is no d_ino. (size_add_wrapv, glob_use_alloca): New static functions. (glob, glob_in_dir): Check for size_t overflow in several places, and fix some size_t checks that were not quite right. Remove old code using SHELL since Bash no longer uses this. (glob, prefix_array): Separate MS code better. (glob_in_dir): Remove old Amiga and VMS code. (globfree, __glob_pattern_type, __glob_pattern_p): Move to separate files. (glob_in_dir): Do not rely on undefined behavior in accessing struct members beyond their bounds. Use a flexible array member instead (link_stat): Rename from link_exists2_p and return -1/0 instead of 0/1. Caller changed. (glob): Fix memory leaks. * posix/glob64 (globfree64): Move to separate file. * sysdeps/gnu/glob64.c (NO_GLOB_PATTERN_P): Remove define. (globfree64): Remove hidden alias. * sysdeps/unix/sysv/linux/Makefile (sysdeps_routines): Add oldglob. * sysdeps/unix/sysv/linux/alpha/glob.c (__new_globfree): Move to separate file. * sysdeps/unix/sysv/linux/i386/glob64.c (NO_GLOB_PATTERN_P): Remove define. Move compat code to separate file. * sysdeps/wordsize-64/glob.c (globfree): Move definitions to separate file. (cherry picked from commit c66c908230169c1bab1f83b071eb585baa214b9f)
2016-10-14powerpc: Sync hwcap.h with kernelCarlos Eduardo Seo
Linux commit b4b56f9ecab40f3b4ef53e130c9f6663be491894 introduced a new HWCAP2 bit to indicate that the kernel now aborts a memory transaction when a syscall is made. This patch adds that bit to sysdeps/powerpc/bits/hwcap.h. * sysdeps/powerpc/bits/hwcap.h: Add PPC_FEATURE2_HTM_NOSC. * sysdeps/powerpc/dl-procinfo.c: (_dl_powerpc_cap_flags): Added descriptor for this hwcap feature so it shows when LD_SHOW_AUXV=1. (cherry picked from commit 3c13f28c8eac1e5a883d1b3801314430a094fc99)
2016-10-14powerpc: Add missing hwcap strings.Carlos Eduardo Seo
Some features in hwcap.h do not have matching string descriptors to be displayed when LD_SHOW_AUXV=1. This patch fixes the problem. * sysdeps/powerpc/dl-procinfo.c: (_dl_powerpc_cap_flags): Added missing strings for some hwcap features. * sysdeps/powerpc/dl-procinfo.h: Updated hwcap bit count. (cherry picked from commit 94ec7e007f4845de284d4f7569721b225ba77572)
2016-10-14Don't compile do_test with -mavx/-mavx2/-mavx512.Andrew Senkevich
Don't compile do_test (in sincos ABI tests) with -mavx, -mavx2 nor -mavx512 since they won't run on non-AVX machines. (cherry-picked from commit fe0cf8614836e2b08b802eb1f55abca75d558545)
2016-10-14Fixed x86_64 vector sincos/sincosf ABI.Andrew Senkevich
Fixed wrong vector sincos/sincosf ABI to have it compatible with current vector function declaration "#pragma omp declare simd notinbranch", according to which vector sincos should have vector of pointers for second and third parameters. It is fixed with implementation as wrapper to version having second and third parameters as pointers. (cherry-picked from commit ee2196bb6766ca7e63a1ba22ebb7619a3266776a)
2016-08-18arm: mark __startcontext as .cantunwind (bug 20435)Andreas Schwab
__startcontext marks the bottom of the call stack of the contexts created by makecontext. (cherry picked from commit 9e2ff6c9cc54c0b4402b8d49e4abe7000fde7617) Also includes the NEWS update, cherry-picked from commits 056dd72af83f5459ce6d545a49dea6dba7d635dc and 4d047efdbc55b0d68947cde682e5363d16a66294.
2016-08-18Do not override objects in libc.a in other static libraries [BZ #20452]Florian Weimer
With this change, we no longer add sysdep.o and similar objects which are present in libc.a to other static libraries. (cherry picked from commit d9067fca40b8aac156d73cfa44d6875813555a6c)
2016-07-01hppa: fix loading of global pointer in _start [BZ #20277]John David Anglin
The patched change fixes a regression for executables compiled with the -p option and linked with gcrt1.o. The executables crash on startup. This regression was introduced in 2.22 and was noticed in the gcc testsuite. (cherry picked from commit 9765ffa71030efd8bb4f2ea4ed6e020fcb4bb714)
2016-06-27MIPS, SPARC: more fixes to the vfork aliases in libpthread.soAurelien Jarno
Commit 43c29487 tried to fix the vfork aliases in libpthread.so on MIPS and SPARC, but failed to do it correctly, introducing an ABI change. This patch does the remaining changes needed to align the MIPS and SPARC vfork implementations with the other architectures. That way the the alpha version of pt-vfork.S works correctly for MIPS and SPARC. The changes for alpha were done in 82aab97c. Changelog: * sysdeps/unix/sysv/linux/mips/vfork.S (__vfork): Rename into __libc_vfork. (__vfork) [IS_IN (libc)]: Remove alias. (__libc_vfork) [IS_IN (libc)]: Define as an alias. * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Likewise. (cherry picked from commit b87c1ec3fa398646f042a68f0ce0f7d09c1348c7)
2016-06-19MIPS, SPARC: fix wrong vfork aliases in libpthread.soAurelien Jarno
With recent binutils versions the GNU libc fails to build on at least MISP and SPARC, with this kind of error: /home/aurel32/glibc/glibc-build/nptl/libpthread.so:(*IND*+0x0): multiple definition of `vfork@GLIBC_2.0' /home/aurel32/glibc/glibc-build/nptl/libpthread.so::(.text+0xee50): first defined here It appears that on these architectures pt-vfork.S includes vfork.S (through the alpha version of pt-vfork.S) and that the __vfork aliases are not conditionalized on IS_IN (libc) like on other architectures. Therefore the aliases are also wrongly included in libpthread.so. Fix this by properly conditionalizing the aliases like on other architectures. Changelog: * sysdeps/unix/sysv/linux/mips/vfork.S (__vfork): Conditionalize hidden_def, weak_alias and strong_alias on [IS_IN (libc)]. * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Likewise. (cherry picked from commit 43c2948756bb6e144c7b871e827bba37d61ad3a3)
2016-06-02sysdeps/unix/sysv/linux/dl-openat64.c: Convert to ISO definitionFlorian Weimer
Partial backport of commit 9dd346ff431fc761f1b748bd4da8bb59f7652094.
2016-06-02Fix indentation.Steve Ellcey
* sysdeps/ieee754/flt-32/k_rem_pio2f.c (__kernel_rem_pio2f): Fix indentation. (cherry picked from commit 976ef870542580cf5fed896c2c652b3e1a95f9da)
2016-06-02Fix several build failures with GCC6 due to unused static variables.Wilco Dijkstra
2015-09-18 Wilco Dijkstra <wdijkstr@arm.com> * resolv/base64.c (rcsid): Remove unused static. * sysdeps/ieee754/dbl-64/atnat2.h (qpi1): Remove unused static. (tqpi1): Likewise. * sysdeps/ieee754/dbl-64/uexp.h (one): Likewise. * sysdeps/ieee754/dbl-64/upow.h (sqrt_2): Likewise. * sysdeps/ieee754/flt-32/e_log10f.c (one): Likewise. * sysdeps/ieee754/flt-32/s_cosf.c (one): Likewise. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (zero): Likewise. * sysdeps/ieee754/ldbl-128/s_erfl.c (half): Likewise. * sysdeps/ieee754/ldbl-128/s_log1pl.c (maxlog): Likewise. * timezone/private.h (time_t_min): Likewise. (time_t_max): Likewise. (cherry picked from commit 6565fcb6e189d67b5a3f321453daebb805056d73)
2016-05-11CVE-2016-3706: getaddrinfo: stack overflow in hostent conversion [BZ #20010]Florian Weimer
When converting a struct hostent response to struct gaih_addrtuple, the gethosts macro (which is called from gaih_inet) used alloca, without malloc fallback for large responses. This commit changes this code to use calloc unconditionally. This commit also consolidated a second hostent-to-gaih_addrtuple conversion loop (in gaih_inet) to use the new conversion function. (cherry picked from commit 4ab2ab03d4351914ee53248dc5aef4a8c88ff8b9)
2016-05-11CVE-2016-1234: glob: Do not copy d_name field of struct dirent [BZ #19779]Florian Weimer
Instead, we store the data we need from the return value of readdir in an object of the new type struct readdir_result. This type is independent of the layout of struct dirent. (cherry picked from commit 5171f3079f2cc53e0548fc4967361f4d1ce9d7ea)
2016-04-12Increase internal precision of ldbl-128ibm decimal printf [BZ #19853]Paul E. Murphy
When the signs differ, the precision of the conversion sometimes drops below 106 bits. This strategy is identical to the hexadecimal variant. I've refactored tst-sprintf3 to enable testing a value with more than 30 significant digits in order to demonstrate this failure and its solution. Additionally, this implicitly fixes a typo in the shift quantities when subtracting from the high mantissa to compute the difference. (cherry picked from commit 37a4c70bd4c5c74ac562072e450dc02e8cb4c150)
2016-04-09configure: fix `test ==` usageMike Frysinger
POSIX defines the = operator, but not ==. Fix the few places where we incorrectly used ==. (cherry picked from commit b2d4456b333970ab4cb01ed8045b9a8d2c4832f3)
2016-04-08powerpc: Fix tabort usage in syscallsPaul E. Murphy
Fix usage of tabort in generated syscalls. r0 has special meaning when used with this instruction, thus it will not generate persistent errors, nor return an error code. This mitigates poor CPU usage when performing elided critical sections. Additionally, transactions should be aborted when entering a user invoked syscall. Otherwise the results of the transaction may be undefined. 2015-08-25 Paul E. Murphy <murphyp@linux.vnet.ibm.com> * sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION): Use register other than r0 for tabort, it has special meaning. * sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION): Likewise * sysdeps/unix.sysv/linux/powerpc/syscall.S (syscall): Abort transaction before starting syscall. (cherry picked from commit 18173559a23e28055640b152e623d9f0d40ecca8)
2016-04-04S390: Extend structs La_s390_regs / La_s390_retval with vector-registers.Stefan Liebler
Starting with z13, vector registers can also occur as argument registers. Thus the passed input/output register structs for la_s390_[32|64]_gnu_plt[enter|exit] functions should reflect those new registers. This patch extends these structs La_s390_regs and La_s390_retval and adjusts _dl_runtime_profile() to handle those fields in case of running on a z13 machine. ChangeLog: * sysdeps/s390/bits/link.h: (La_s390_vr) New typedef. (La_s390_32_regs): Append vector register lr_v24-lr_v31. (La_s390_64_regs): Likewise. (La_s390_32_retval): Append vector register lrv_v24. (La_s390_64_retval): Likeweise. * sysdeps/s390/s390-32/dl-trampoline.h (_dl_runtime_profile): Handle extended structs La_s390_32_regs and La_s390_32_retval. * sysdeps/s390/s390-64/dl-trampoline.h (_dl_runtime_profile): Handle extended structs La_s390_64_regs and La_s390_64_retval. (cherry picked from commit 5cdd1989d1d2f135d02e66250f37ba8e767f9772)
2016-04-04S390: Save and restore fprs/vrs while resolving symbols.Stefan Liebler
On s390, no fpr/vrs were saved while resolving a symbol via _dl_runtime_resolve/_dl_runtime_profile. According to the abi, the fpr-arguments are defined as call clobbered. In leaf-functions, gcc 4.9 and newer can use fprs for saving/restoring gprs instead of saving them to the stack. If gcc do this in one of the resolver-functions, then the floating point arguments of a library-function are invalid for the first library-function-call. Thus, this patch saves/restores the fprs around the resolving code. The same could occur for vector registers. Furthermore an ifunc-resolver could also clobber the vector/floating point argument registers. Thus this patch provides the further variants _dl_runtime_resolve_vx/ _dl_runtime_profile_vx, which are used if the kernel claims, that we run on a machine with vector registers. Furthermore, if _dl_runtime_profile calls _dl_call_pltexit, the pointers to inregs-/outregs-structs were setup invalid. Now they point to the correct location in the stack-frame. Before branching back to the caller, the return values are now restored instead of containing the return values of the _dl_call_pltexit() call. On s390-32, an endless loop occurs if _dl_call_pltexit() should be called. Now, this code-path branches to this function instead of just after the preceding basr-instruction. ChangeLog: * sysdeps/s390/s390-32/dl-trampoline.S: Include dl-trampoline.h twice to create a non-vector/vector version for _dl_runtime_resolve and _dl_runtime_profile. Move implementation to ... * sysdeps/s390/s390-32/dl-trampoline.h: ... here. (_dl_runtime_resolve) Save and restore fpr/vrs. (_dl_runtime_profile) Save and restore vrs and fix some issues if _dl_call_pltexit is called. * sysdeps/s390/s390-32/dl-machine.h (elf_machine_runtime_setup): Choose the correct resolver function if running on a machine with vx. * sysdeps/s390/s390-64/dl-trampoline.S: Include dl-trampoline.h twice to create a non-vector/vector version for _dl_runtime_resolve and _dl_runtime_profile. Move implementation to ... * sysdeps/s390/s390-64/dl-trampoline.h: ... here. (_dl_runtime_resolve) Save and restore fpr/vrs. (_dl_runtime_profile) Save and restore vrs and fix some issues * sysdeps/s390/s390-64/dl-machine.h: (elf_machine_runtime_setup): Choose the correct resolver function if running on a machine with vx. (cherry picked from commit 4603c51ef7989d7eb800cdd6f42aab206f891077 and commit d8a012c5c9e4bfc1b8db2bc6deacb85b44a2e1eb)
2016-04-04S390: configure check for vector instruction support in assembler.Stefan Liebler
The S390 specific test checks if the assembler has support for the new z13 vector instructions by compiling a vector instruction. The .machine and .machinemode directives are needed to compile the vector instruction without -march=z13 option on 31/64 bit. On success the macro HAVE_S390_VX_ASM_SUPPORT is defined. This macro is used to determine if the optimized functions can be build without compile errors. If the used assembler lacks vector support, then a warning is dumped while configuring and only the common code functions are build. The z13 instruction support was introduced in "[Committed] S/390: Add support for IBM z13." (https://sourceware.org/ml/binutils/2015-01/msg00197.html) ChangeLog: * config.h.in (HAVE_S390_VX_ASM_SUPPORT): New macro undefine. * sysdeps/s390/configure.ac: Add test for S390 vector instruction assembler support. * sysdeps/s390/configure: Regenerated. (cherry picked from commit 4f0a1cea34c05fb2acc16f1a2d291f53230eb4fb)
2016-04-04S390: Add new s390 platform.Stefan Liebler
The new IBM z13 is added to platform string array. The macro _DL_PLATFORMS_COUNT is incremented to 8, because it was not incremented by commit "S/390: Sync AUXV capabilities and archs with kernel". ChangeLog: * sysdeps/s390/dl-procinfo.c (_dl_s390_cap_flags): Add z13. * sysdeps/s390/dl-procinfo.h (_DL_PLATFORMS_COUNT): Increased. (cherry picked from commit a1b0488fc9df3d895a2e5eefbcd348d3f7fe0e52)
2016-04-04S390: Add hwcaps value for vector facility.Stefan Liebler
The HWCAP_S390_VX flag in hwcap field of auxiliary vector indicates if the vector facility is available and the kernel is aware of it. This can be tested with LD_SHOW_AUXV=1 <prog>. Currently it does not show te, because it was not incremented by commit "S/390: Add hwcap value for transactional execution.". Thus _DL_HWCAP_COUNT is incremented by two. ChangeLog: * sysdeps/s390/dl-procinfo.c (_dl_s390_platforms): Add vector flag. * sysdeps/s390/dl-procinfo.h: Add vector capability. * sysdeps/unix/sysv/linux/s390/bits/hwcap.h (HWCAP_S390_VX): Define. (cherry picked from commit 4e28fa80886c71e6aaf85016b82ce981c0f12e6d)
2016-03-11Use PIC relocation in ALIAS_IMPLAndrew Senkevich
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. (cherry picked from commit a5df3210a641c175138052037fcdad34298bfa4d)
2016-03-08Fix x86_64 fma4 pow inappropriate contraction (bug 19003).Joseph Myers
The x86_64 fma4 version of pow fails to disable contraction of operations other than those explicitly intended to use fma instructions, so resulting in large ulps errors on processors with fma4 instructions, as in bug 18104 (165ulp for the test added for that bug; error originally reported by "blaaa" on #glibc). This patch adds $(config-cflags-nofma) for e_pow-fma4.c, corresponding to the use for e_pow.c in sysdeps/ieee754/dbl-64/Makefile. Tested for x86_64 on a processor with fma4. [BZ #19003] * sysdeps/x86_64/fpu/multiarch/Makefile (CFLAGS-e_pow-fma4.c): Add $(config-cflags-nofma). (cherry picked from commit 51df2605064a2bfd44fa0655ef9815812347de80)
2016-03-03S390: Do not use direct socket syscalls if build on kernels >= 4.3. [BZ #19682]Stefan Liebler
Beginning with Linux 4.3, the kernel headers contain direct system call numbers __NR_socket etc. on s390x. On older kernels, the socket-multiplexer syscall __NR_socketcall was used. To enable these new syscalls, the patch "S390: Call direct system calls for socket operations." (https://sourceware.org/git/?p=glibc.git;a=commit;h=016495b818cb61df7d0d10e6db54074271b3e3a5) was applied upstream. If glibc 2.23 is configured with --enable-kernel=4.3 and newer, the direct socket syscalls are used. For older kernels, the socket-multiplexer syscall is used instead. In glibc 2.22 and earlier, this patch is not applied. If you build glibc on a kernel < 4.3, the socket-multiplexer syscall is used. But if you build glibc on kernel >= 4.3, the direct socket-syscalls are used. If you install this glibc on a kernel < 4.3, all socket operations will fail. See "Bug 19682 - s390x: Incorrect syscall definitions cause breakage with Linux 4.3 headers" (https://sourceware.org/bugzilla/show_bug.cgi?id=19682) The configure switch --enable-kernel does not influence this behaviour on older glibc-releases. The solution is to remove the direct socket-syscalls in sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (this patch) on older glibc-releases as it was done by the upstream patch, too. These entries were never used on s390x, but the c-files in sysdeps/unix/sysv/linux/. After this removal, the behaviour of the socket functions are not changed compared to the original glibc release version and the socket-multiplexer-syscall is always used.
2016-03-01Regenerate Alpha ULPsAurelien Jarno
* sysdeps/alpha/fpu/libm-test-ulps: Update ULPs.
2016-02-22powerpc: Fix macro usage of htm builtinsPaul E. Murphy
Some extraneous semicolons were included in a recent patch which causes a build failure with newer compilers. (cherry picked from commit af8ea0f449af7d3847351a4a5bafcd435a22ac31)
2016-02-22powerpc: Enforce compiler barriers on hardware transactionsTulio Magno Quites Machado Filho
Work around a GCC behavior with hardware transactional memory built-ins. GCC doesn't treat the PowerPC transactional built-ins as compiler barriers, moving instructions past the transaction boundaries and altering their atomicity. (cherry picked from commit 42bf1c897170ff951c7fd0ee9da25f97ff787396) Conflicts: sysdeps/unix/sysv/linux/powerpc/elision-trylock.c
2016-01-24hppa: start.S: rework references to fix PIE TEXTRELs [BZ #18421]Alan Modra
The startup code was not using PIC friendly references leading to TEXTRELs in every PIE ELF. (cherry picked from commit cf4253777412e9c8d5bfbc1c8b975f472e1e7d43)
2016-01-24hppa: Fix miscompilation of sched_setaffinity() [BZ #18480]John David Anglin
The attached change fixes the miscompilation of sched_setaffinity() on hppa. This is an old problem that was fixed on other architectures using a similar approach to the attached change. See: https://sourceware.org/ml/libc-hacker/2004-04/msg00016.html Build tested on trunk. Patch has been applied to debian glibc for some time. (cherry picked from commit 04ece7d2dec91fe870c5f1a38032875915f44633)
2015-12-31alpha/hppa: fix libc.abilist sorting wrt fmemopenAurelien Jarno
Commit fdb7d390 introduced the fmemopen symbol at the wrong location in alpha/libc.abilist and hppa/libc.abilist. The file needs to keep sorted, fix that. Note: this is for 2.22 only, for master the format has been changed in commit 8c77b6ad. * sysdeps/unix/sysv/linux/alpha/libc.abilist [GLIBC_2.22]: Move to keep the file sorted. * sysdeps/unix/sysv/linux/hppa/libc.abilist [GLIBC_2.22]: Likewise.
2015-12-17powerpc: Fix usage of elision transient failure adapt paramPaul Murphy
The skip_lock_out_of_tbegin_retries adaptive parameter was not being used correctly, nor as described. This prevents a fallback for all users of the lock if a transient abort occurs within the accepted number of retries. [BZ #19174] * sysdeps/powerpc/nptl/elide.h (__elide_lock): Fix usage of .skip_lock_out_of_tbegin_retries. * sysdeps/unix/sysv/linux/powerpc/elision-lock.c (__lll_lock_elision): Likewise, and respect a value of try_tbegin <= 0. (cherry picked from commit 72f1463df85a522bfd1568e47bd81371522ee358) Conflicts: NEWS
2015-11-27Better workaround for aliases of *_finite symbols in vector math library.Andrew Senkevich
Old workaround based on assembly aliases can lead to link fail (bug 19058). This patch makes workaround in another way to avoid it. [BZ #19058] * math/Makefile ($(inst_libdir)/libm.so): Added libmvec_nonshared.a to AS_NEEDED. * sysdeps/x86/fpu/bits/math-vector.h: Removed code with old workaround. * sysdeps/x86_64/fpu/Makefile (libmvec-support, libmvec-static-only-routines): Added new file. * sysdeps/x86_64/fpu/svml_finite_alias.S: New file. * NEWS: Mention this fix.
2015-11-20NaCl: Use allocate_code_data after dyncode_createRoland McGrath
(cherry picked from commit f549f0bcba7196a2afc51657c536bbc131a7c544)
2015-11-15Run tst-prelink test for GLOB_DAT relocH.J. Lu
Run tst-prelink test on targets with GLOB_DAT relocaton. * config.make.in (have-glob-dat-reloc): New. * configure.ac (libc_cv_has_glob_dat): New. Set to yes if target supports GLOB_DAT relocaton. AC_SUBST. * configure: Regenerated. * elf/Makefile (tests): Add tst-prelink. (tests-special): Add $(objpfx)tst-prelink-cmp.out. (tst-prelink-ENV): New. ($(objpfx)tst-prelink-conflict.out): Likewise. ($(objpfx)tst-prelink-cmp.out): Likewise. * sysdeps/x86/tst-prelink.c: Moved to ... * elf/tst-prelink.c: Here. * sysdeps/x86/tst-prelink.exp: Moved to ... * elf/tst-prelink.exp: Here. * sysdeps/x86/Makefile (tests): Don't add tst-prelink. (tst-prelink-ENV): Removed. ($(objpfx)tst-prelink-conflict.out): Likewise. ($(objpfx)tst-prelink-cmp.out): Likewise. (tests-special): Don't add $(objpfx)tst-prelink-cmp.out. (cherry picked from commit 89569c8bb6b386db4881af0e96514d2ec5c35478)
2015-11-10NaCl: Use open_resource API for shared objectsRoland McGrath
(cherry picked from commit c0d6f2a33e1229a96d5d5064b9b04d7d3cd41d9d)
2015-11-10Add a test for prelink outputH.J. Lu
This test applies to i386 and x86_64 which set R_386_GLOB_DAT and R_X86_64_GLOB_DAT to ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA. [BZ #19178] * sysdeps/x86/Makefile (tests): Add tst-prelink. (tst-prelink-ENV): New. ($(objpfx)tst-prelink-conflict.out): Likewise. ($(objpfx)tst-prelink-cmp.out): Likewise. (tests-special): Add $(objpfx)tst-prelink-cmp.out. * sysdeps/x86/tst-prelink.c: New file. * sysdeps/x86/tst-prelink.exp: Likewise. (cherry picked from commit fe534fe8980fa214c410e3661a4216e781073353)
2015-10-20PowerPC: Fix a race condition when eliding a lockTulio Magno Quites Machado Filho
The previous code used to evaluate the preprocessor token is_lock_free to a variable before starting a transaction. This behavior can cause an error if another thread got the lock (without using a transaction) between the evaluation of the token and the beginning of the transaction. This bug can be triggered with the following order of events: 1. The lock accessed by is_lock_free is free. 2. Thread T1 evaluates is_lock_free and stores into register R1 that the lock is free. 3. Thread T2 acquires the same lock used in is_lock_free. 4. T1 begins the transaction, creating a memory barrier where is_lock_free is false, but R1 is true. 5. T1 reads R1 and doesn't abort the transaction. 6. T1 calls ELIDE_UNLOCK, which reads false from is_lock_free and decides to unlock a lock acquired by T2, leading to undefined behavior. This patch delays the evaluation of is_lock_free to inside a transaction by moving this part of the code to the macro ELIDE_LOCK. [BZ #18743] * sysdeps/powerpc/nptl/elide.h (__elide_lock): Move most of this code to... (ELIDE_LOCK): ...here. (__get_new_count): New function with part of the code from __elide_lock that updates the value of adapt_count after a transaction abort. (__elided_trylock): Moved this code to... (ELIDE_TRYLOCK): ...here. (cherry picked from commit 6ec52bf634b7650b57ff67b5f5053bce8992d549)
2015-10-16Always enable pointer guard [BZ #18928]Florian Weimer
Honoring the LD_POINTER_GUARD environment variable in AT_SECURE mode has security implications. This commit enables pointer guard unconditionally, and the environment variable is now ignored. [BZ #18928] * sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Remove _dl_pointer_guard member. * elf/rtld.c (_rtld_global_ro): Remove _dl_pointer_guard initializer. (security_init): Always set up pointer guard. (process_envvars): Do not process LD_POINTER_GUARD. (cherry picked from commit a014cecd82b71b70a6a843e250e06b541ad524f7)
2015-09-11NaCl: Do not install <sys/mtio.h>.Roland McGrath
(cherry picked from commit d57248f0351b307e17476aa1ef812023025c8fd7)
2015-09-04BZ#18921: Fix opendir inverted o_directory_works test.Roland McGrath
(cherry picked from commit bd9e69abb887d78d0d6708fc089cc9f3eabf106d)
2015-08-31Fix non-v9 32-bit sparc build.Brett Neumeier
[BZ #18870] * sysdeps/sparc/sparc32/sem_open.c: Add missing #include
2015-08-25NaCl: Call __nacl_main in preference to main.fedora/2.22/masterRoland McGrath
(cherry picked from commit f97194930886838796546646e26a49bb5899075b)
2015-08-10Readd O_LARGEFILE flag for openat64 (bug 18781)Andreas Schwab
(cherry picked from commit eb32b0d40308166c4d8f6330cc2958cb1e545075)
2015-08-08hppa: Fix reload error with atomic code [BZ #18787]John David Anglin
As noted in the bug, the asm operands need to be copied to register variables to avoid operand reloads in the principal asm of the macro. See the arm implementation for reference. Otherwise we get: ../sysdeps/unix/sysv/linux/hppa/bits/atomic.h:68:6: error: can't find a register in class 'R1_REGS' while reloading 'asm' Build tested on trunk with gcc-4.8. Similar patch has been tested with 2.19 on Debian hppa-unknown-linux-gnu. (cherry picked from commit 74bc0c3a16e3c8f138e29a284e84d16474b65a8e)
2015-08-07microblaze: include unix/sysdep.hMike Frysinger
The semi-recent SYSCALL_CANCEL inclusion broke microblaze due to the sysdep.h header not including the unix/sysdep.h header. Include it here like all other ports. (cherry picked from commit 5d5de49c3ccd69f65b801f1ca490a0112d1cbd7d)
2015-08-07hppa: _dl_symbol_address: add missing hidden defMike Frysinger
Commit 2a6ad8142d14c998e6c5eb51418aac1f598b621e updated the headers and the common dl-symaddr.c, but missed that hppa has its own dedicated source file for this func. Update that too to fix build errors due to missing exports of the symbol. (cherry picked from commit be144ba68c918a5d7bc964be06fbeb51a0df84fc)
2015-08-04tilepro: fix warnings in sysdeps/tile/tilepro/bits/atomic.hChris Metcalf
Using a ({ }) structure avoids the "value computed is not used" that a simple () structure causes.
2015-08-04Properly terminate FDE in makecontext for ix86 (bug 18635)Andreas Schwab
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