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* Fix qsort_r namespace (bug 17571).Joseph Myers2014-11-129-7/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | qsort_r is defined in the same file as qsort, but is not an ISO C function, so should be a weak alias for __qsort_r. The uses in getaddrinfo should also call __qsort_r, since getaddrinfo is a POSIX function and qsort_r isn't. This patch implements this. Because nscd uses the getaddrinfo sources outside libc, as do the tst-rfc3484 tests, a #define of __qsort_r to qsort_r is added there alongside the similar defines for other libc-internal symbols used in getaddrinfo. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). [BZ #17571] * stdlib/msort.c (qsort_r): Rename to __qsort_r and define as weak alias of __qsort_r. (qsort): Call __qsort_r instead of qsort_r. * include/stdlib.h (qsort_r): Do not call libc_hidden_proto. (__qsort_r): Declare. Call libc_hidden_proto. * sysdeps/posix/getaddrinfo.c (getaddrinfo): Call __qsort_r instead of qsort_r. * nscd/gai.c (__qsort_r): Define to qsort_r. * posix/tst-rfc3484.c (__qsort_r): Likewise. * posix/tst-rfc3484-2.c (__qsort_r): Likewise. * posix/tst-rfc3484-3.c (__qsort_r): Likewise.
* Fix malloc_info namespace (bug 17570).Joseph Myers2014-11-123-2/+7
| | | | | | | | | | | | | malloc_info is defined in the same file as malloc and free, but is not an ISO C function, so should be a weak symbol. This patch makes it so. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). [BZ #17570] * malloc/malloc.c (malloc_info): Rename to __malloc_info and define as weak alias of __malloc_info.
* Fix __getcwd rewinddir namespace (bug 17584).Joseph Myers2014-11-127-9/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __getcwd is called from dcigettext.o (brought in by various ISO C functionality), but calls rewinddir, which is not an ISO C function. This patch makes __getcwd call __rewinddir instead and makes rewinddir a weak alias for __rewinddir. Since getcwd.c is shared with gnulib (albeit not merged in either direction for a long time, and omitted from gnulib's config/srclist.txt list of shared files) I put in a #ifndef _LIBC define of __rewinddir to rewinddir, although a future merged version of getcwd could end up looking significantly different. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by this patch). [BZ #17584] * dirent/rewinddir.c (rewinddir): Rename to __rewinddir and define as weak alias of __rewinddir. Don't use libc_hidden_def. (__rewinddir): Use libc_hidden_def. * sysdeps/mach/hurd/rewinddir.c: Rename to __rewinddir and define as weak alias of __rewinddir. Don't use libc_hidden_def. (__rewinddir): Use libc_hidden_def. * sysdeps/posix/rewinddir.c: Rename to __rewinddir and define as weak alias of __rewinddir. Don't use libc_hidden_def. (__rewinddir): Use libc_hidden_def. * include/dirent.h (rewinddir): Don't use libc_hidden_proto. (__rewinddir): Use libc_hidden_proto. * sysdeps/posix/getcwd.c [!_LIBC] (__rewinddir): Define to rewinddir. (__getcwd): Use __rewinddir instead of rewinddir.
* Fix tzfile.c namespace (bug 17583).Joseph Myers2014-11-128-30/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tzfile.c is brought in by various ISO C functions, but calls fileno, fread_unlocked and ftello, which are not ISO C functions. This patch adds names __fileno, __fread_unlocked and __ftello for those functions, making tzfile.c use those new names. Note: there are various uses of fileno elsewhere in glibc that I didn't change, although it may turn out that some of those also need to use __fileno. Tested for x86_64 with the glibc testsuite. Changed line numbers in tzfile.c cause changes in assertions, and for some reason this ends up with different instruction choice and register allocation, affecting the size of __tzfile_read and so making comparison of disassembly for libc.so problematic. [BZ #17583] * libio/fileno.c (fileno): Rename to __fileno and define as weak alias of __fileno. Use libc_hidden_weak. (__fileno): Use libc_hidden_def. [weak_alias] (fileno_unlocked): Define as weak alias of __fileno. * libio/ftello.c (ftello): Rename to __ftello and define as weak alias of __ftello. [__OFF_T_MATCHES_OFF64_T] (ftello64): Define as weak alias of __ftello. * libio/iofread.c [weak_alias && !_IO_MTSAFE_IO] (__fread_unlocked): Define as strong alias of _IO_fread. Use libc_hidden_def. (fread_unlocked): Don't use libc_hidden_ver. * libio/iofread_u.c (fread_unlocked): Rename to __fread_unlocked and define as weak alias of __fread_unlocked. Don't use libc_hidden_def. (__fread_unlocked): Use libc_hidden_def. * include/stdio.h (__fileno): Declare. Use libc_hidden_proto. (ftello): Don't use libc_hidden_proto. (__ftello): Declare. Use libc_hidden_proto. (fread_unlocked): Don't use libc_hidden_proto. (__fread_unlocked): Declare. Use libc_hidden_proto. * time/tzfile.c (__tzfile_read): Use __fileno, __fread_unlocked and __ftello instead of fileno, fread_unlocked and ftello.
* Use GOT instead of GOT12 all overSiddhesh Poyarekar2014-11-124-4/+13
| | | | | GOT12 is a synonym for GOT, so just use GOT everywhere for consistency. Generated code is unchanged on s390.
* Fix stack alignment when loader is invoked directlySiddhesh Poyarekar2014-11-123-7/+68
| | | | | | | | | | | | | The s390 ABI requires the stack pointer to be aligned at 8-bytes. When a program is invoked as an argument to the dynamic linker, _dl_start_user adjusts the stack to remove the dynamic linker arguments so that the program sees only its name and arguments. This may result in the stack being misaligned since each argument shift is only a word and not a double-word. This is now fixed shifting argv and envp down instead of shifting argc up and reclaiming the stack. This requires _dl_argv to be adjusted and hence, is no longer relro.
* Fix tst-strcoll-overflow returning before timeout (BZ #17506)Leonhard Holz2014-11-124-29/+45
| | | | | | | Modifies the test examination in test-skeleton.c so that a test can be successful if it is interrupted or it returns uninterrupted with the expected status. For this both EXPECTED_SIGNAL and EXPECTED_STATUS have to be set, as is done in tst-strcoll-overflow.c.
* New Bhilodi and Tulu locales (BZ #17475)Tatiana Udalova2014-11-127-1/+393
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* [AArch64] Add ipc.h.Alan Hayward2014-11-112-0/+58
| | | | | Adding ipc.h for AArch64 adjusted to behave correctly on big endian targets.
* Fix ChangeLog formatting of previous commit.Marcus Shawcroft2014-11-111-1/+1
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* [AArch64] End frame record chain correctly.Renlin Li2014-11-113-2/+6
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* Update minimal required bunutils version to 2.22Andrew Senkevich2014-11-105-8/+19
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* m68k: don't expect PLT reference to __tls_get_addrAndreas Schwab2014-11-072-4/+8
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* Remove __libc_waitpid function name.Joseph Myers2014-11-0711-20/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the removal of unused __libc_* function names, this patch removes the __libc_waitpid name. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch; __waitpid, which is exported from shared libc, changes from weak to strong on some configurations, which is of no significance). * include/sys/wait.h (__libc_waitpid): Remove declaration. * posix/waitpid.c (__libc_waitpid): Rename to __waitpid. (__waitpid): Don't define as alias. Use libc_hidden_def not libc_hidden_weak. (waitpid): Define as alias of __waitpid. * sysdeps/unix/bsd/waitpid.c (__libc_waitpid): Rename to __waitpid. (__waitpid): Don't define as alias. Use libc_hidden_def not libc_hidden_weak. (waitpid): Define as alias of __waitpid. * sysdeps/unix/sysv/linux/i386/syscalls.list (waitpid): Remove __libc_waitpid alias. * sysdeps/unix/sysv/linux/m68k/syscalls.list (waitpid): Likewise. * sysdeps/unix/sysv/linux/powerpc/syscalls.list (waitpid): Likewise. * sysdeps/unix/sysv/linux/sh/syscalls.list (waitpid): Likewise. * sysdeps/unix/sysv/linux/sparc/syscalls.list (waitpid): Likewise. * sysdeps/unix/sysv/linux/tile/waitpid.S (__libc_waitpid): Remove alias. * sysdeps/unix/sysv/linux/waitpid.c (__libc_waitpid): Rename to __waitpid. (__waitpid): Don't define as alias. Use libc_hidden_def not libc_hidden_weak. (waitpid): Define as alias of __waitpid.
* manual/llio.texi: Comment on write atomicity.Carlos O'Donell2014-11-062-0/+8
| | | | | | | | | | We add Linux-realted comments about the atomicity of write with respect to file offsets. As of Linux 3.14 the file offset update is atomic. That means that multiple threads calling the write syscall can not possibly get the same file offset. Therefore the writes should not overlap and data should not be lost as is required by POSIX.
* Run check-localpltk/textrel/execstack over ld.so.Carlos O'Donell2014-11-0616-1/+151
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For maximum paranoia we run ld.so through the normal set of tests for all of the shared libraries. This includes running ld.so through check-localplt, check-textrel, and check-execstack. While none of these should trigger any failures given the way ld.so is built, it might possibly fail if a developer does something wrong. This paranoia was triggered by a discussion over the use of __strcpy vs. strcpy [1] and if the symbol could leak and use the libc.so version. The check-localplt test fails right away because localplt.data needs updating for all arches. By default we add 6 new symbols: __tls_get_addr, __libc_memalign, malloc, calloc, realloc and free. Other machines like i386, power, and s390 require some different symbol sets e.g. ___tls_get_addr vs. __tls_get_addr for i386. Verified for i386 Verified for x86_64 Verified for ppc32 Verified for ppc64 Verified for ppc64le Verified for arm Verified for aarch64 Verified for s390 Verified for s390x Guessed for alpha Guessed for ia64 Guessed for m68k Guessed for microblaze Guessed for sparc32 Guessed for sparc64 Defaults for sh Defaults for mips Defaults for hppa Defaults for tile Machine manintainers notified to double check the data used in localplt.data. [1] https://sourceware.org/ml/libc-alpha/2014-10/msg00548.html
* Remove INTDEF / INTUSE / INTVARDEF (bug 14132).Joseph Myers2014-11-058-36/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Completing the removal of the obsolete INTDEF / INTUSE mechanism, this patch removes the final use - that for _dl_starting_up - replacing it by rtld_hidden_def / rtld_hidden_proto. Having removed the last use, the mechanism itself is also removed. Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. (This is not much of a test since this variable is only defined and used in the !HAVE_INLINED_SYSCALLS case.) [BZ #14132] * include/libc-symbols.h (INTUSE): Remove macro. (INTDEF): Likewise. (INTVARDEF): Likewise. (_INTVARDEF): Likewise. (INTDEF2): Likewise. (INTVARDEF2): Likewise. * elf/rtld.c [!HAVE_INLINED_SYSCALLS] (_dl_starting_up): Use rtld_hidden_def instead of INTVARDEF. * sysdeps/generic/ldsodefs.h [IS_IN_rtld] (_dl_starting_up_internal): Remove declaration. (_dl_starting_up): Use rtld_hidden_proto. * elf/dl-init.c [!HAVE_INLINED_SYSCALLS] (_dl_starting_up): Remove declaration. [!HAVE_INLINED_SYSCALLS] (_dl_starting_up_internal): Likewise. (_dl_init) [!HAVE_INLINED_SYSCALLS]: Don't use INTUSE with _dl_starting_up. * elf/dl-writev.h (_dl_writev): Likewise. * sysdeps/powerpc/powerpc64/dl-machine.h [!HAVE_INLINED_SYSCALLS] (DL_STARTING_UP_DEF): Use __GI__dl_starting_up instead of _dl_starting_up_internal.
* libio: Refactor tst-fmemopen to use test-skeleton.cAdhemerval Zanella2014-11-052-23/+76
| | | | | This patch refactor tst-fmemopen.c to use test-skeleton.c. No logic changes are added.
* benchtests: Add malloc microbenchmarkWill Newton2014-11-053-3/+325
| | | | | | | | | | | | | | | | | | | | Add a microbenchmark for measuring malloc and free performance with varying numbers of threads. The benchmark allocates and frees buffers of random sizes in a random order and measures the overall execution time and RSS. Variants of the benchmark are run with 1, 8, 16 and 32 threads. The random block sizes used follow an inverse square distribution which is intended to mimic the behaviour of real applications which tend to allocate many more small blocks than large ones. ChangeLog: 2014-11-05 Will Newton <will.newton@linaro.org> * benchtests/Makefile: (bench-malloc): Add malloc thread scalability benchmark. * benchtests/bench-malloc-threads.c: New file.
* [AArch64] Add optimized strchrnul.Richard Earnshaw2014-11-053-0/+136
| | | | | | | | | | | Here is an optimized implementation of __strchrnul. The simplification that we don't have to track precisely why the loop terminates (match or end-of-string) means we have to do less work in both setup and the core inner loop. That means this should never be slower than strchr. As with strchr, the use of LD1 means we do not need different versions for big-/little-endian.
* powerpc: Simplify encoding of POWER8 instructionAdhemerval Zanella2014-11-057-36/+22
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* Modify several tests to use test-skeleton.cArjun Shankar2014-11-05124-250/+745
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch modifies several test cases to use test-skeleton.c. It was generated by a bash script written for this purpose and thus excludes several other tests which I deemed worth a visual inspection before making the change. I intend to follow up with individual patches to the tests skipped by the script. The script itself resides at http://git.io/WODAmg and should reproduce this very patch when run against master. ChangeLog: 2014-10-30 Arjun Shankar <arjun.is@lostca.se> * catgets/test-gencat.c: Use test-skeleton.c. * catgets/tst-catgets.c: Likewise. * csu/tst-empty.c: Likewise. * elf/tst-audit2.c: Likewise. * elf/tst-global1.c: Likewise. * elf/tst-pathopt.c: Likewise. * elf/tst-piemod1.c: Likewise. * elf/tst-tls10.c: Likewise. * elf/tst-tls11.c: Likewise. * elf/tst-tls12.c: Likewise. * gnulib/tst-gcc.c: Likewise. * iconvdata/tst-e2big.c: Likewise. * iconvdata/tst-loading.c: Likewise. * iconv/tst-iconv1.c: Likewise. * iconv/tst-iconv2.c: Likewise. * inet/test-inet6_opt.c: Likewise. * inet/tst-gethnm.c: Likewise. * inet/tst-network.c: Likewise. * inet/tst-ntoa.c: Likewise. * intl/tst-codeset.c: Likewise. * intl/tst-gettext2.c: Likewise. * intl/tst-gettext3.c: Likewise. * intl/tst-ngettext.c: Likewise. * intl/tst-translit.c: Likewise. * io/test-stat.c: Likewise. * libio/test-fmemopen.c: Likewise. * libio/tst-freopen.c: Likewise. * libio/tst-sscanf.c: Likewise. * libio/tst-ungetwc1.c: Likewise. * libio/tst-ungetwc2.c: Likewise. * libio/tst-widetext.c: Likewise. * localedata/tst-ctype.c: Likewise. * localedata/tst-digits.c: Likewise. * localedata/tst-leaks.c: Likewise. * localedata/tst-mbswcs1.c: Likewise. * localedata/tst-mbswcs2.c: Likewise. * localedata/tst-mbswcs3.c: Likewise. * localedata/tst-mbswcs4.c: Likewise. * localedata/tst-mbswcs5.c: Likewise. * localedata/tst-setlocale.c: Likewise. * localedata/tst-trans.c: Likewise. * localedata/tst-wctype.c: Likewise. * localedata/tst-xlocale1.c: Likewise. * login/tst-grantpt.c: Likewise. * malloc/tst-calloc.c: Likewise. * malloc/tst-malloc.c: Likewise. * malloc/tst-mallocstate.c: Likewise. * malloc/tst-mcheck.c: Likewise. * malloc/tst-mtrace.c: Likewise. * malloc/tst-obstack.c: Likewise. * math/atest-exp2.c: Likewise. * math/atest-exp.c: Likewise. * math/atest-sincos.c: Likewise. * math/test-matherr.c: Likewise. * math/test-misc.c: Likewise. * math/test-powl.c: Likewise. * math/tst-definitions.c: Likewise. * misc/tst-dirname.c: Likewise. * misc/tst-efgcvt.c: Likewise. * misc/tst-fdset.c: Likewise. * misc/tst-hsearch.c: Likewise. * misc/tst-mntent2.c: Likewise. * nptl/tst-sem7.c: Likewise. * nptl/tst-sem8.c: Likewise. * nptl/tst-sem9.c: Likewise. * nss/test-netdb.c: Likewise. * posix/tst-fnmatch.c: Likewise. * posix/tst-getlogin.c: Likewise. * posix/tst-gnuglob.c: Likewise. * posix/tst-mmap.c: Likewise. * pwd/tst-getpw.c: Likewise. * resolv/tst-inet_ntop.c: Likewise. * rt/tst-timer.c: Likewise. * stdio-common/test-fseek.c: Likewise. * stdio-common/test-popen.c: Likewise. * stdio-common/test-vfprintf.c: Likewise. * stdio-common/tst-cookie.c: Likewise. * stdio-common/tst-fileno.c: Likewise. * stdio-common/tst-gets.c: Likewise. * stdio-common/tst-obprintf.c: Likewise. * stdio-common/tst-perror.c: Likewise. * stdio-common/tst-sprintf2.c: Likewise. * stdio-common/tst-sprintf3.c: Likewise. * stdio-common/tst-sprintf.c: Likewise. * stdio-common/tst-swprintf.c: Likewise. * stdio-common/tst-tmpnam.c: Likewise. * stdio-common/tst-unbputc.c: Likewise. * stdio-common/tst-wc-printf.c: Likewise. * stdlib/tst-environ.c: Likewise. * stdlib/tst-fmtmsg.c: Likewise. * stdlib/tst-limits.c: Likewise. * stdlib/tst-rand48-2.c: Likewise. * stdlib/tst-rand48.c: Likewise. * stdlib/tst-random2.c: Likewise. * stdlib/tst-random.c: Likewise. * stdlib/tst-strtol.c: Likewise. * stdlib/tst-strtoll.c: Likewise. * stdlib/tst-tls-atexit.c: Likewise. * stdlib/tst-xpg-basename.c: Likewise. * string/test-ffs.c: Likewise. * string/tst-bswap.c: Likewise. * string/tst-inlcall.c: Likewise. * string/tst-strtok.c: Likewise. * string/tst-strxfrm.c: Likewise. * sysdeps/x86_64/tst-audit10.c: Likewise. * sysdeps/x86_64/tst-audit3.c: Likewise. * sysdeps/x86_64/tst-audit4.c: Likewise. * sysdeps/x86_64/tst-audit5.c: Likewise. * time/tst-ftime_l.c: Likewise. * time/tst-getdate.c: Likewise. * time/tst-mktime3.c: Likewise. * time/tst-mktime.c: Likewise. * time/tst-posixtz.c: Likewise. * time/tst-strptime2.c: Likewise. * time/tst-strptime3.c: Likewise. * wcsmbs/tst-btowc.c: Likewise. * wcsmbs/tst-mbrtowc.c: Likewise. * wcsmbs/tst-mbsrtowcs.c: Likewise. * wcsmbs/tst-wchar-h.c: Likewise. * wcsmbs/tst-wcpncpy.c: Likewise. * wcsmbs/tst-wcrtomb.c: Likewise. * wcsmbs/tst-wcsnlen.c: Likewise. * wcsmbs/tst-wcstof.c: Likewise.
* Don't use INTDEF/INTUSE with _dl_mcount (bug 14132).Joseph Myers2014-11-055-5/+14
| | | | | | | | | | | | | | | | | | | Continuing the removal of the obsolete INTDEF / INTUSE mechanism, this patch replaces its use for _dl_mcount with use of rtld_hidden_def / rtld_hidden_proto. Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. [BZ #14132] * elf/dl-profile.c (_dl_mcount): Use rtld_hidden_def instead of INTDEF. * sysdeps/generic/ldsodefs.h (_dl_mcount_internal): Remove declaration. (_dl_mcount): Use rtld_hidden_proto. * elf/dl-runtime.c (_dl_profile_fixup): Don't use INTUSE with _dl_mcount. * elf/rtld.c (_rtld_global_ro): Likewise.
* Don't use INTDEF/INTUSE with _dl_init (bug 14132).Joseph Myers2014-11-0420-24/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the removal of the obsolete INTDEF / INTUSE mechanism, this patch eliminates its use for _dl_init. Since _dl_init was already declared with hidden visibility, creating a second hidden alias for it was completely pointless, so this patch replaces all uses of _dl_init_internal with plain _dl_init instead of using hidden_proto / hidden_def (which are only needed when you want a hidden alias for a non-hidden symbol; it's quite possible there are cases where they are used but don't need to be because the symbol in question is not part of the public ABI and is only used within a single library, so using attributes_hidden instead would suffice). Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. [BZ #14132] * elf/dl-init.c (_dl_init): Don't use INTDEF. * sysdeps/aarch64/dl-machine.h (RTLD_START): Use _dl_init instead of _dl_init_internal. * sysdeps/alpha/dl-machine.h (RTLD_START): Likewise. * sysdeps/arm/dl-machine.h (RTLD_START): Likewise. * sysdeps/hppa/dl-machine.h (RTLD_START): Likewise. * sysdeps/i386/dl-machine.h (RTLD_START): Likewise. * sysdeps/ia64/dl-machine.h (RTLD_START): Likewise. * sysdeps/m68k/dl-machine.h (RTLD_START): Likewise. * sysdeps/microblaze/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/dl-machine.h (RTLD_START): Likewise. * sysdeps/powerpc/powerpc32/dl-start.S (_start): Likewise. * sysdeps/s390/s390-32/dl-machine.h (RTLD_START): Likewise. * sysdeps/s390/s390-64/dl-machine.h (RTLD_START): Likewise. * sysdeps/sh/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (RTLD_START): Likewise. * sysdeps/tile/dl-start.S (_start): Likewise. * sysdeps/x86_64/dl-machine.h (RTLD_START): Likewise. * sysdeps/x86_64/x32/dl-machine.h (RTLD_START): Likewise.
* Don't use INTDEF/INTUSE with _dl_argv (bug 14132).Joseph Myers2014-11-047-34/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the removal of the obsolete INTDEF / INTUSE mechanism, this patch replaces its use for _dl_argv with rtld_hidden_data_def and rtld_hidden_proto. Some places in .S files that previously used _dl_argv_internal or INTUSE(_dl_argv) now use __GI__dl_argv directly (there are plenty of existing examples of such direct use of __GI_*). A single place in rtld.c previously used _dl_argv without INTUSE, apparently accidentally, while the rtld_hidden_proto mechanism avoids such accidential omissions. As a consequence, this patch *does* change the contents of stripped ld.so. However, the installed stripped shared libraries are identical to those you get if instead of this patch you change that single _dl_argv use to use INTUSE, without any other changes. Tested for x86_64 (testsuite as well as comparison of installed stripped shared libraries as described above). [BZ #14132] * sysdeps/generic/ldsodefs.h (_dl_argv): Use rtld_hidden_proto. [IS_IN_rtld] (_dl_argv_internal): Do not declare. (rtld_progname): Make macro definition unconditional. * elf/rtld.c (_dl_argv): Use rtld_hidden_data_def instead of INTDEF. (dlmopen_doit): Do not use INTUSE with _dl_argv. (dl_main): Likewise. * elf/dl-sysdep.c (_dl_sysdep_start): Likewise. * sysdeps/alpha/dl-machine.h (RTLD_START): Use __GI__dl_argv instead of _dl_argv_internal. * sysdeps/powerpc/powerpc32/dl-start.S (_dl_start_user): Use __GI__dl_argv instead of INTUSE(_dl_argv). * sysdeps/powerpc/powerpc64/dl-machine.h (RTLD_START): Use __GI__dl_argv instead of _dl_argv_internal.
* soft-fp: Add _FP_TO_INT_ROUND.Joseph Myers2014-11-046-0/+240
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the series of patches adding soft-fp features from the kernel version of soft-fp to glibc so that glibc's version is able to replace the old fork of soft-fp in the kernel, this patch adds the last major such feature: _FP_TO_INT_ROUND, converting a floating-point number to an integer with rounding according to the current rounding direction (as opposed to truncating towards zero, which _FP_TO_INT does). The general structure of the implementation follows that of _FP_TO_INT, but of course is more complicated. As with glibc's _FP_TO_INT it works with raw input (the kernel versions of these macros predate the conversion of _FP_TO_INT and many other macros to raw or semi-raw input). I have not tried to work out what bugs there might be in the kernel version that this might fix; it's a from-scratch implementation based on _FP_TO_INT. Tested for powerpc (soft-float) that there is no change to the installed shared libraries; also tested with the libm tests with lrint / lrintf / llrint / llrintf made to use _FP_TO_INT_ROUND, to provide some test of the functionality. As we don't have benchmarks for those functions, I haven't actually included the soft-fp versions of them, although I expect them to be faster than the existing code (given that the existing code involves adding and subtracting numbers such as 0x1p52 to achieve the desired rounding, which is not particularly efficient when the underlying floating point is software floating point). 2014-11-04 Joseph Myers <joseph@codesourcery.com> * soft-fp/op-common.h (_FP_TO_INT_ROUND): New macro. * soft-fp/double.h [_FP_W_TYPE_SIZE < 64] (FP_TO_INT_ROUND_D): New macro. [_FP_W_TYPE_SIZE >= 64] (FP_TO_INT_ROUND_D): Likewise. * soft-fp/extended.h [_FP_W_TYPE_SIZE < 64] (FP_TO_INT_ROUND_E): New macro. [_FP_W_TYPE_SIZE >= 64] (FP_TO_INT_ROUND_E): Likewise. * soft-fp/quad.h [_FP_W_TYPE_SIZE < 64] (FP_TO_INT_ROUND_Q): New macro. [_FP_W_TYPE_SIZE >= 64] (FP_TO_INT_ROUND_Q): Likewise. * soft-fp/single.h (FP_TO_INT_ROUND_S): New macro.
* Remove unused includeAndreas Schwab2014-11-042-1/+4
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* powerpc: Fix encoding of POWER8 instructionAdhemerval Zanella2014-11-032-1/+13
| | | | | This patch adds a binary encoding for 'mtvsrd' instruction to avoid build failures when assembler does not support POWER8.
* Don't error out writing a multibyte character to an unbuffered stream (bug ↵Andreas Schwab2014-11-035-7/+69
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* Fix sparc struct fpu definition.Jose E. Marchesi2014-11-012-1/+6
| | | | | * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (struct fpu): fix the size of the fpu_fr.fpu_dregs[] array.
* Remove __libc_nanosleep function name.Joseph Myers2014-11-013-5/+12
| | | | | | | | | | | | | | | Continuing the removal of unused __libc_* function names, this patch removes the __libc_nanosleep name. Tested for x86_64 (testsuite, and that the disassembly of installed shared libraries is unchanged by the patch; __nanosleep changes from weak to strong, which is of no significance). * posix/nanosleep.c (__libc_nanosleep): Rename to __nanosleep. (__nanosleep): Do not define as alias. (nanosleep): Define as alias of __nanosleep. * sysdeps/unix/sysv/linux/syscalls.list (nanosleep): Remove __libc_nanosleep name.
* Make aclocal.m4 comment mention updating install.texi for autoconf version.Joseph Myers2014-10-312-1/+7
| | | | | * aclocal.m4 (GLIBC_AUTOCONF_VERSION): Mention need to update install.texi in comment.
* powerpc: Change atomic_write_barrier to have release semantics.Torvald Riegel2014-10-314-1/+11
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* Add a hook to enable load-time inspection of program headersMatthew Fortune2014-10-313-0/+47
| | | | | | | | | | | This hook can be used to perform additional compatibility checks between shared libraries by inspecting custom program header information. * elf/dl-machine-reject-phdr.h: New file. * elf/dl-load.c: #include that. (open_verify): Call elf_machine_reject_phdr_p and ignore the file if that returned true.
* BZ#17496: Fix gnu/lib-names.h dependency.Roland McGrath2014-10-312-64/+75
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* Update autoconf version requirement in install.texi.Joseph Myers2014-10-313-2/+6
| | | | | | | | | | I noticed that install.texi was out of date with regard to the actual autoconf version requirement for regenerating configure scripts. This patch updates the documentation. * manual/install.texi (Tools for Compilation): Update autoconf version requirements. * INSTALL: Regenerated.
* Remove __libc_pselect alias.Joseph Myers2014-10-313-2/+4
| | | | | | | | | | | | Continuing the removal of unused __libc_* function names, this patch removes the __libc_pselect alias. Tested for x86_64 that installed stripped shared libraries are unchanged by this patch. * misc/pselect.c [!__pselect] (__libc_pselect): Remove alias. * sysdeps/unix/sysv/linux/pselect.c [__NR_pselect6] (__libc_pselect): Likewise.
* Add bug 15215 to NEWS; move bug 17344 to correct version's list in NEWS.Joseph Myers2014-10-311-3/+3
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* Move powerpc64 pread/pwrite definitions to syscalls.list (bug 14138).Joseph Myers2014-10-316-221/+10
| | | | | | | | | | | | | | | | Concluding the move of syscall definitions to syscalls.list, where the removal of support for old kernel versions has made this possible, this patch removes C definitions of pread, pread64, pwrite and pwrite64 for powerpc64. As far as I can tell, the existing syscalls.list definitions in sysdeps/unix/sysv/linux/wordsize-64/syscalls.list should suffice to produce results equivalent to what these C files do. [BZ #14138] * sysdeps/unix/sysv/linux/powerpc/powerpc64/pread.c: Remove file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/pread64.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite64.c: Likewise.
* Fix SPARC atomic_write_barrier.Torvald Riegel2014-10-314-4/+13
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* Clean up internal ctype.h header.Roland McGrath2014-10-302-16/+22
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* Remove __libc_readv and __libc_writev function names.Joseph Myers2014-10-307-22/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the removal of __libc_* function names that are no longer used anywhere, this patch removes the __libc_readv and __libc_writev names. Tested for x86_64 that stripped installed shared libraries are unchanged by the patch. * include/sys/uio.h (__libc_readv): Remove declaration. (__libc_writev): Likewise. * misc/readv.c (__libc_readv): Rename to __readv. (__readv): Do not define as alias. (readv): Define as alias of __readv. * misc/writev.c (__libc_writev): Rename to __writev. (__writev): Do not define as alias. (writev): Define as alias of __writev. * sysdeps/posix/readv.c (__libc_readv): Rename to __readv. (__readv): Do not define as alias. (readv): Define unconditionally as alias of __readv. * sysdeps/posix/writev.c (__libc_writev): Rename to __writev. (__writev): Do not define as alias. (writev): Define unconditionally as alias of __writev. * sysdeps/unix/syscalls.list (readv): Do not define __libc_readv name. (writev): Do not define __libc_writev name.
* Clean up wchar_t conversion code in iconv program.Roland McGrath2014-10-302-79/+61
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* Remove __libc_creat function name.Joseph Myers2014-10-307-9/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glibc has lots of __libc_* function names that no longer serve any purpose (are not used for any calls or exported at a public symbol version). This patch removes __libc_creat. It has the effect of creat becoming a strong symbol instead of a weak symbol in various cases, but that's fine; in shared libraries it doesn't matter at all, while for static linking the only other symbol sometimes defined in the same object is creat64, and whenever creat64 is a reserved name so is creat. Other such cases of unnecessary __libc_* symbols are expected to be dealt with in separate patches over time. Tested for x86_64 (testsuite, and that the disassembly of installed shared libraries is unchanged by the patch). * include/fcntl.h (__libc_creat): Remove declaration. * io/creat.c (__libc_creat): Rename to creat. (creat): Do not define as alias. * sysdeps/unix/sysv/linux/alpha/creat.c (creat64): Define as alias of creat instead of __libc_creat. * sysdeps/unix/sysv/linux/generic/creat.c (__libc_creat): Rename to creat. (creat): Do not define as alias. [__WORDSIZE == 64] (creat64): Define as alias of creat instead of __libc_creat. * sysdeps/unix/sysv/linux/syscalls.list (creat): Do not define __libc_creat name. * sysdeps/unix/sysv/linux/wordsize-64/syscalls.list (creat): Likewise.
* manual/llio.texi: Add Linux-specific comments for write().Carlos O'Donell2014-10-292-0/+30
| | | | | | | | | | Add Linux-specific comments about the atomicity of write() and the POSIX requirements. 2014-10-29 Carlos O'Donell <carlos@redhat.com> * manual/llio.texi: Add comments discussing why write() may be considered MT-unsafe on Linux.
* elf/dl-load.c: Use __strdup.Carlos O'Donell2014-10-282-19/+12
| | | | | | | | | | | | | | | | | | | | | | During a refactoring pass several repeated blocks of code in dl-load.c were turned into a call to a local function named local_strdup. There is no need for local_strdup, and the routines should instead call __strdup. This change does just that. We call the internal symbol __strdup because calling strdup is unsafe. The user might be using a standard that doesn't include strdup and may have defined this symbol in their application. During a static link we might reference the user defined symbol and crash if it doesn't implement a standards conforming strdup. The resulting code is simpler to understand, and makes it easier to debug. No regressions on x86_64. 2014-10-28 Carlos O'Donell <carlos@redhat.com> * dl-load.c (local_strdup): Remove. (expand_dynamic_string_token): Use __strdup. (decompose_rpath): Likewise. (_dl_map_object): Likewise.
* Don't use INTDEF/INTUSE in unwind-dw2-fde.c (bug 14132).Joseph Myers2014-10-282-15/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the removal of the obsolete INTDEF / INTUSE mechanism, this patch replaces its use in unwind-dw2-fde.c with hidden_def and hidden_proto. Tested for x86. This patch does result in code generation differences (for some reason GCC decides to partition __register_frame_info_bases after the patch). [BZ #14132] * sysdeps/generic/unwind-dw2-fde.c (__register_frame_info_bases_internal): Do not declare. (__register_frame_info_table_bases_internal): Likewise. (__deregister_frame_info_bases_internal): Likewise. (__register_frame_info_bases): Declare and use hidden_proto before definition. Use hidden_def instead of INTDEF. (__register_frame_info_table_bases): Likewise. (__deregister_frame_info_bases): Likewise. (__register_frame_info): Do not use INTUSE. (__register_frame): Likewise. (__register_frame_info_table): Likewise. (__register_frame_table): Likewise. (__deregister_frame_info): Likewise. (__deregister_frame): Likewise.
* arm: Re-enable PI futex support for ARM kernels >= 3.14.3Gratian Crisan2014-10-272-4/+16
| | | | | | | | | | | | | | | | | | | ARM linux kernels before 3.14.3 may or may not support futex_atomic_cmpxchg_inatomic depending on the kernel configuration (e.g. CONFIG_CPU_USE_DOMAINS && CONFIG_SMP configuration was not supported) Starting with 3.14.3 the linux kernel unconditionally enables support for ARM, and this re-enables the relevant __ASSUME_* macros. Tested on ARM both with kernels >= 3.14.3 and older kernels. * sysdeps/unix/sysv/linux/arm/kernel-features.h [__LINUX_KERNEL_VERSION >= 0x030E03] (__ASSUME_FUTEX_LOCK_PI): Do not undefine. [__LINUX_KERNEL_VERSION >= 0x030E03] (__ASSUME_REQUEUE_PI): Likewise. [__LINUX_KERNEL_VERSION >= 0x030E03] (__ASSUME_SET_ROBUST_LIST): Likewise.
* Move setfsgid/setfsuid definitions to syscalls.list (bug 14138).Joseph Myers2014-10-2719-77/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the move of syscall definitions to syscalls.list, where the removal of support for old kernel versions has made this possible, this patch moves various definitions of setfsgid and setfsuid. Tested for x86. [BZ #14138] * sysdeps/unix/sysv/linux/arm/setfsgid.c: Remove file. * sysdeps/unix/sysv/linux/arm/setfsuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setfsgid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setfsuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setfsgid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setfsuid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setfsgid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setfsuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setfsgid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setfsuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setfsgid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setfsuid.c: Likewise. * sysdeps/unix/sysv/linux/arm/syscalls.list (setfsgid): Add syscall. (setfsuid): Likewise. * sysdeps/unix/sysv/linux/i386/syscalls.list (setfsgid): Likewise. (setfsuid): Likewise. * sysdeps/unix/sysv/linux/m68k/syscalls.list (setfsgid): Likewise. (setfsuid): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list (setfsgid): Likewise. (setfsuid): Likewise. * sysdeps/unix/sysv/linux/sh/syscalls.list (setfsgid): Likewise. (setfsuid): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list (setfsgid): Likewise. (setfsuid): Likewise.
* Fix misdetected Slow_SSE4_2 cpu feature bit (bug 17501)Andreas Schwab2014-10-276-11/+21
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