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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)
2016-08-18arm: 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)
2016-06-27MIPS, 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.
2016-05-11CVE-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)
2016-04-08powerpc: 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: 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)
2016-03-03S390: 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.
2016-02-22powerpc: 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: 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
2015-08-10Readd 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)
2015-08-04Properly terminate FDE in makecontext for ix86 (bug 18635)Andreas Schwab
2015-07-30hppa: Remove custom lowlevellock.h.Torvald Riegel
This untested patch removes the custom lowlevellock.h on hppa. It seems to contain an implementation equivalent to the generic lowlevellock.h.
2015-07-29hppa: sigaction.h: change sa_flags to an intMike Frysinger
This fixes the conform test for the sigaction.h header and makes it match all the other arches.
2015-07-29hppa: fix sysdep.h header setupMike Frysinger
The semi-recent SYSCALL_CANCEL inclusion broke hppa due to the sysdep.h headers not including the unix/sysdep.h headers. Rework the includes so we match the other ports: * hppa/sysdep.h: - Do not include sys/syscall.h as the unix sysdep.h headers do it. - Do not include config.h as libc-symbols.h does it, and it has no #ifdef multiple-include protection, and it breaks when some files do things like #undef __OPTIMIZE__. * sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h: - Drop the generic/sysdep.h as the unix sysdep.h headers include it. * sysdeps/unix/sysv/linux/hppa/sysdep.h: - Change to the unix & core hppa sysdep header stacks. - Undef a few defines that the core headers already set up for us.
2015-07-29hppa: rewrite INLINE_SYSCALLMike Frysinger
The semi-recent SYSCALL_CANCEL macro imposes a slight nuance on the implementation of INLINE_SYSCALL: the nr argument cannot be expanded directly but must be passed on to another macro which may expand it. Most arches don't notice because INLINE_SYSCALL is defined in terms of INTERNAL_SYSCALL which has the additional layer of expansion, but on hppa, it was attempting to expand it directly. That causes build errors like so: ../sysdeps/unix/sysv/linux/sigsuspend.c: In function '__sigsuspend': ../sysdeps/unix/sysv/linux/sigsuspend.c:31:62: error: implicit declaration of function 'LOAD_ARGS___SYSCALL_NARGS' ../sysdeps/unix/sysv/linux/sigsuspend.c:31:304: error: called object 'LOAD_ARGS___SYSCALL_NARGS(set, 8)' is not a function So rewrite hppa's INLINE_SYSCALL to use INTERNAL_SYSCALL like other arches do. This is also a nice clean up as the two macros had quite a bit of duplicated logic.
2015-07-29Extend local PLT reference checkH.J. Lu
On x86, linker in binutils 2.26 and newer consolidates R_*_JUMP_SLOT with R_*_GLOB_DAT relocation against the same symbol. This patch extends local PLT reference check to support alternate relocations. [BZ #18078] * scripts/check-localplt.awk: Support alternate relocations. * scripts/localplt.awk: Also check relocations in DT_RELA/DT_REL sections. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark free and malloc entries with + REL R_386_GLOB_DAT. * sysdeps/x86_64/localplt.data: New file.
2015-07-28ia64: drop __tls_get_addr from expected ld.so plt usageMike Frysinger
This file was updated with an educated guess as to the symbols needed, but on ia64, we don't have __tls_get_addr calls, so drop it from the list.
2015-07-28ia64: clean up old kernel headers cruftMike Frysinger
This define made more sense in the pre-sanitized kernel headers days, but since we require kernel versions that are sanitized, we don't need this hack anymore.
2015-07-24Fix order of arguments to rt_sigprocmask syscall when setting the signal maskChung-Lin Tang
in setcontext/swapcontext.
2015-07-23Make sysdeps/posix bring in login subdir.Roland McGrath
2015-07-23ia64: sigaction.h: fix sa_flags orderingMike Frysinger
Since ia64 is little endian, sa_flags has to come before the padding when splitting it from 64bits to 32bits. Reported-by: Joseph Myers <joseph@codesourcery.com>
2015-07-21ia64: msg.h: fix msg_qnum/msg_qbytes typesMike Frysinger
These two fields have dedicated types, so change the ia64 header to match all the other arches. This fixes the conform test for msg.h.
2015-07-21ia64: stat.h: rename pad0 to __glibc_reserved0Mike Frysinger
This fixes the conform test for the stat.h header and makes it match all the other arches.
2015-07-21ia64: sifaction.h: change sa_flags to an intMike Frysinger
This fixes the conform test for the sigaction.h header and makes it match all the other arches.
2015-07-21ia64: siginfo.h: delete siginfo nameMike Frysinger
This fixes the conform test for the siginfo.h header and makes it match all the other arches.
2015-07-21tile: Fix BZ #18508 (makecontext yield infinite backtrace)Chris Metcalf
It turns out tile suffered from the same problem as S390. However, disabling CFI information for the __startcontext on tile was not sufficient to fix the problem; I think the backtracer will just blindly try to follow the link register (lr) in that case. Instead, the change adds a cfi_undefined directive for "lr" and then arranges to call __startcontext directly when the new context starts, rather than just synthesizing a return to it. In addition to being a bit easier now to understand the control flow, this also allows the cfi_undefined directive to be placed in a way that causes it to be in force at the address that the "lr" from the called function points to.
2015-07-20sparc: fix sigaction for 32bit builds [BZ #18694]Mike Frysinger
Commit a059d359d86130b5fa74e04a978c8523a0293f77 changed the sigaction struct to pass conform tests, but it ended up also changing the ABI for 32 bit builds. For 64 bit builds, changing the long to two ints works, but for 32 bit builds, it inserts 4 extra bytes. This leads to many packages randomly failing like bash that spews things like: configure: line 471: wait_for: No record of process 0 Bracket the new member by a wordsize check to fix the ABI for 32bit.
2015-07-20Add si_addr_bnd to _sigfault in x86 struct siginfoH.J. Lu
X86 struct siginfo in kernel 3.19 has been changed by commit ee1b58d36aa1b5a79eaba11f5c3633c88231da83 Author: Qiaowei Ren <qiaowei.ren@intel.com> Date: Fri Nov 14 07:18:19 2014 -0800 mpx: Extend siginfo structure to include bound violation information This patch adds new fields about bound violation into siginfo structure. si_lower and si_upper are respectively lower bound and upper bound when bound violation is caused. This patch updates x86 struct siginfo to enable GDB with MPX support. [BZ #18696] * sysdeps/unix/sysv/linux/x86/bits/siginfo.h (_sigfault): Add si_addr_bnd. (si_lower): New. (si_upper): Likewise.
2015-07-10Add and use new glibc-internal futex API.Torvald Riegel
This adds new functions for futex operations, starting with wait, abstimed_wait, reltimed_wait, wake. They add documentation and error checking according to the current draft of the Linux kernel futex manpage. Waiting with absolute or relative timeouts is split into separate functions. This allows for removing a few cases of code duplication in pthreads code, which uses absolute timeouts; also, it allows us to put platform-specific code to go from an absolute to a relative timeout into the platform-specific futex abstractions.. Futex operations that can be canceled are also split out into separate functions suffixed by "_cancelable". There are separate versions for both Linux and NaCl; while they currently differ only slightly, my expectation is that the separate versions of lowlevellock-futex.h will eventually be merged into futex-internal.h when we get to move the lll_ functions over to the new futex API.
2015-07-09PLT avoidance for _exit in rtld.Roland McGrath
2015-07-09libio: Update powerpc64le libc.abilistAdhemerval Zanella
This patch adds the missing fmemopen entry for powerpc64le libc abilist check file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
2015-07-09[AArch64][BZ 18648] change greg_t definition in ucontext.hSzabolcs Nagy
This is an ABI breaking change, but typedef int greg_t; is not a useful definition on aarch64. greg_t is usually used for defining gregset_t which is used in mcontext_t. The general registers in mcontext_t can only be accessed by target specific code and on aarch64 greg_t is not needed for that so this change is not supposed to break existing code, just fix the definition. [BZ #18648] * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (greg_t): Change the definition to elf_greg_t. (Added another BZ entry that was missed in the previous commit).
2015-07-09[AArch64][BZ 18400] fix elf_prpsinfo in procfs.hSzabolcs Nagy
Kernel uses int pr_uid, pr_gid, but glibc used unsigned short. This is an ABI breaking change, but the size and alignment of the struct and the layout of other members is not changed and there is no known usage of pr_uid and pr_gid so it is expected to be safe. [BZ #18400] * sysdeps/unix/sysv/linux/aarch64/sys/procfs.h (struct elf_prpsinfo): Fix pr_uid and pr_gid members.
2015-07-08libio: fmemopen rewrite to POSIX complianceAdhemerval Zanella
This patch added a new fmemopen version, for glibc 2.22, that aims to be POSIX complaint. It fixes some long-stading glibc fmemopen issues, such as: * it changes the way fseek with SEEK_END works on fmemopen to seek relative to buffer size instead of first '\0'. This is default mode and 'b' opening mode does not change internal behavior (bz#6544). * fix apending opening mode to use as start position either first null byte of len specified in function call (bz#13152 and #13151). * remove binary option 'b' and internal different handling (bz#12836) * fix seek/SEE_END with negative values (bz#14292). A compatibility symbol is provided to with old behavior for older symbols version (2.2.5). * include/stdio.h (fmemopen): Remove hidden prototype. (__fmemopen): Add new hidden prototype. * libio/Makefile: Add oldfmemopen object. * libio/Versions [GLIBC_2.22]: Add new fmemopen symbol. * libio/fmemopen.c (__fmemopen): Function rewrite to be POSIX compliance. * libio/oldfmemopen.c: New file: old fmemopen implementation for symbol compatibility. * stdio-common/Makefile [tests]: Add new tst-fmemopen3. * stdio-common/psiginfo.c [psiginfo]: Call __fmemopen instead of fmemopen. * stdio-common/tst-fmemopen3.c: New file: more fmemopen tests, focus on append and read mode. * sysdeps/unix/sysv/linux/aarch64/libc.abilist [GLIBC_2.22]: Add fmemopen. * sysdeps/unix/sysv/linux/alpha/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/arm/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/microblaze/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/sh/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/hppa/libc.abilist [GLIBC_2.22]: Likewise. * sysdeps/unix/sysv/linux/nios2/libc.abilist [GLIBC_2.22]: Likewise.
2015-07-08Add missing Advanced API (RFC3542) (1) defines.Carlos O'Donell
Fixes bug 18643. Defines IPV6_RECVPATHMTU, IPV6_PATHMTU, and IPV6_DONTFRAG for Linux.
2015-07-07S390: Fix "backtrace() returns infinitely deep stack frames with ↵Stefan Liebler
makecontext()" [BZ #18508]. On s390/s390x backtrace(buffer, size) returns the series of called functions until "makecontext_ret" and additional entries (up to "size") with "makecontext_ret". GDB-backtrace is also warning: "Backtrace stopped: previous frame identical to this frame (corrupt stack?)" To reproduce this scenario you have to setup a new context with makecontext() and activate it with setcontext(). See e.g. cf() function in testcase stdlib/tst-makecontext.c. Or see bug in libgo "Bug 66303 - runtime.Caller() returns infinitely deep stack frames on s390x " (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66303). This patch omits the cfi_startproc/cfi_endproc directives in ENTRY/END macro of __makecontext_ret. Thus no frame information is generated in .eh_frame and backtrace stops after __makecontext_ret. There is also no .eh_frame info for _start or thread_start functions. ChangeLog: [BZ #18508] * stdlib/Makefile ($(objpfx)tst-makecontext3): Depend on $(libdl). * stdlib/tst-makecontext.c (cf): Test if _Unwind_Backtrace is not called infinitely times. (backtrace_helper): New function. (trace_arg): New struct. (st1): Enlarge stack size. * sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S: (__makecontext_ret): Omit cfi_startproc and cfi_endproc. * sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S: Likewise.
2015-07-07S390: Fix sem.h conformance test failures.Stefan Liebler
On s390 the following tests are failing due to unkown types time_t, pid_t: FAIL: conform/UNIX98/sys/sem.h/conform FAIL: conform/XOPEN2K/sys/sem.h/conform FAIL: conform/XOPEN2K8/sys/sem.h/conform FAIL: conform/XPG3/sys/sem.h/conform FAIL: conform/XPG4/sys/sem.h/conform This patch changes the s390 specific sem.h and includes sys/types.h instead of bits/types.h. All other archs include sys/types.h, too. Including bits/wordsize.h is obselete, because it is already inlcuded in sys/types.h -> bits/types.h. ChangeLog: * sysdeps/unix/sysv/linux/s390/bits/sem.h: Include sys/types.h instead of bits/types.h. Remove inclusion of bits/wordsize.h.
2015-07-06[AArch64] make setcontext etc functions consistent with the kernelSzabolcs Nagy
since https://sourceware.org/ml/libc-alpha/2014-04/msg00006.html setcontext etc is no longer tied to the kernel use of ucontext. in that patch the ucontext reserved space is not used consistently with the kernel abi: the d8,d9 pair is saved in the slot of q8. this is ok (*context functions work together), but probably not desirable (ucontexts created by the kernel and getcontext are subtly different). the fix just replaces dN with qN in the save/restore code, which does a bit more than needed (saves/restores the top half of qN that is not callee saved), but this should not be an issue (and avoids having to deal with endianness). (kernel fpsimd context layout: the first 64bit contains 0x210 the fpsimd context size and 0x46508001 the FPSIMD_MAGIC, the second 64bit is for fpsr and fpcr, and the rest is the 128bit q0..q31 registers). given d8=8.1, d9=9.1,... d15=15.1, the context created by getcontext is current: (gdb) x/40xg ctx.uc_mcontext.__reserved 0x410df0 <ctx+464>: 0x0000021046508001 0x0000000000000000 0x410e00 <ctx+480>: 0x0000000000000000 0x0000000000000000 0x410e10 <ctx+496>: 0x0000000000000000 0x0000000000000000 0x410e20 <ctx+512>: 0x0000000000000000 0x0000000000000000 0x410e30 <ctx+528>: 0x0000000000000000 0x0000000000000000 0x410e40 <ctx+544>: 0x0000000000000000 0x0000000000000000 0x410e50 <ctx+560>: 0x0000000000000000 0x0000000000000000 0x410e60 <ctx+576>: 0x0000000000000000 0x0000000000000000 0x410e70 <ctx+592>: 0x0000000000000000 0x0000000000000000 0x410e80 <ctx+608>: 0x4020333333333333 0x4022333333333333 0x410e90 <ctx+624>: 0x0000000000000000 0x0000000000000000 0x410ea0 <ctx+640>: 0x4024333333333333 0x4026333333333333 0x410eb0 <ctx+656>: 0x0000000000000000 0x0000000000000000 0x410ec0 <ctx+672>: 0x4028333333333333 0x402a333333333333 0x410ed0 <ctx+688>: 0x0000000000000000 0x0000000000000000 0x410ee0 <ctx+704>: 0x402c333333333333 0x402e333333333333 0x410ef0 <ctx+720>: 0x0000000000000000 0x0000000000000000 0x410f00 <ctx+736>: 0x0000000000000000 0x0000000000000000 0x410f10 <ctx+752>: 0x0000000000000000 0x0000000000000000 0x410f20 <ctx+768>: 0x0000000000000000 0x0000000000000000 fixed: (gdb) x/40xg ctx.uc_mcontext.__reserved 0x410d70 <ctx+464>: 0x0000021046508001 0x0000000000000000 0x410d80 <ctx+480>: 0x0000000000000000 0x0000000000000000 0x410d90 <ctx+496>: 0x0000000000000000 0x0000000000000000 0x410da0 <ctx+512>: 0x0000000000000000 0x0000000000000000 0x410db0 <ctx+528>: 0x0000000000000000 0x0000000000000000 0x410dc0 <ctx+544>: 0x0000000000000000 0x0000000000000000 0x410dd0 <ctx+560>: 0x0000000000000000 0x0000000000000000 0x410de0 <ctx+576>: 0x0000000000000000 0x0000000000000000 0x410df0 <ctx+592>: 0x0000000000000000 0x0000000000000000 0x410e00 <ctx+608>: 0x4020333333333333 0x0000000000000000 0x410e10 <ctx+624>: 0x4022333333333333 0x0000000000000000 0x410e20 <ctx+640>: 0x4024333333333333 0x0000000000000000 0x410e30 <ctx+656>: 0x4026333333333333 0x0000000000000000 0x410e40 <ctx+672>: 0x4028333333333333 0x0000000000000000 0x410e50 <ctx+688>: 0x402a333333333333 0x0000000000000000 0x410e60 <ctx+704>: 0x402c333333333333 0x0000000000000000 0x410e70 <ctx+720>: 0x402e333333333333 0x0000000000000000 0x410e80 <ctx+736>: 0x0000000000000000 0x0000000000000000 0x410e90 <ctx+752>: 0x0000000000000000 0x0000000000000000 0x410ea0 <ctx+768>: 0x0000000000000000 0x0000000000000000 2015-07-06 Szabolcs Nagy <szabolcs.nagy@arm.com> * sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Use q registers instead of d ones so the layout is kernel abi compatible. * sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Likewise. * sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Likewise.# Please enter the commit message for your changes. Lines starting
2015-06-30Clean up BUSY_WAIT_NOP and atomic_delay.Torvald Riegel
This patch combines BUSY_WAIT_NOP and atomic_delay into a new atomic_spin_nop function and adjusts all clients. The new function is put into atomic.h because what is best done in a spin loop is architecture-specific, and atomics must be used for spinning. The function name is meant to tell users that this has no effect on synchronization semantics but is a performance aid for spinning.
2015-06-29Update headers for Linux 4.0, 4.1 definitions.Joseph Myers
This patch updates installed glibc headers for new definitions from Linux 4.0 and 4.1 that seem relevant to glibc headers. In addition, I noticed that PF_IB / AF_IB, added in Linux 3.11, were missing for no obvious reason, so added those as well. Tested for x86_64 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * sysdeps/unix/sysv/linux/bits/in.h (IP_CHECKSUM): New macro. * sysdeps/unix/sysv/linux/bits/socket.h (PF_IB): Likewise. (PF_MPLS): Likewise. (AF_IB): Likewise. (AF_MPLS): Likewise. * sysdeps/unix/sysv/linux/sys/mount.h (MS_LAZYTIME): New enum value and macro. (MS_RMT_MASK): Include MS_LAZYTIME.
2015-06-24Print more information in tst-getcpu failure case.Roland McGrath
2015-06-18Fix netinet/in.h MCAST_* namespace (bug 18558).Joseph Myers
sysdeps/unix/sysv/linux/bits/in.h (as included in netinet/in.h, and via that in netdb.h and arpa/inet.h) defines a series of MCAST_* macros, both under __USE_MISC and then again unconditionally. These are not POSIX macros, nor in any of the namespaces listed in POSIX as reserved for this header, so should not be defined unconditionally. This patch duly removes the unconditional definitions, leaving the ones conditional on __USE_MISC. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). [BZ #18558] * sysdeps/unix/sysv/linux/bits/in.h (MCAST_JOIN_GROUP): Remove unconditional definition. (MCAST_BLOCK_SOURCE): Likewise. (MCAST_UNBLOCK_SOURCE): Likewise. (MCAST_LEAVE_GROUP): Likewise. (MCAST_JOIN_SOURCE_GROUP): Likewise. (MCAST_LEAVE_SOURCE_GROUP): Likewise. (MCAST_MSFILTER): Likewise. * conform/Makefile (test-xfail-XOPEN2K/arpa/inet.h/conform): Remove variable. (test-xfail-XOPEN2K/netdb.h/conform): Likewise. (test-xfail-XOPEN2K/netinet/in.h/conform): Likewise. (test-xfail-XOPEN2K8/arpa/inet.h/conform): Likewise. (test-xfail-XOPEN2K8/netdb.h/conform): Likewise. (test-xfail-XOPEN2K8/netinet/in.h/conform): Likewise.
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