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* alpha: Remove bits/siginfo.h (BZ 16966)Richard Henderson2014-05-203-335/+5
| | | | | | Using the default header instead. This matches the kernel, which also uses the generic header. Fixes the sys/wait.h conform issue, where si_band had the wrong type.
* alpha: Define ELF_MACHINE_NO_RELARichard Henderson2014-05-202-0/+5
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* AArch64: Fix handling of nocancel syscall failuresWill Newton2014-05-202-0/+6
| | | | | | | | | | | | | | The current code for nocancel syscalls does not do a comparison of the system call return value. This leads to code being generated where the b.cs follows the svc instruction directly without setting the flags on which the branch depends. ChangeLog: 2014-05-20 Will Newton <will.newton@linaro.org> * sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h (PSEUDO): Test the return value of the system call in the nocancel case.
* AArch64: Remove asm/ptrace.h inclusion in sys/user.h and sys/procfs.hYvan Roux2014-05-203-21/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes an issue observed by the Xen project, where including signal.h exposes various PSR_MODE #defines. This is due to the usage in sys/user.h and sys/procfs.h of the struct user_pt_regs and user_fpsimd_state included via asm/ptrace.h. The namespace pollution this inclusion introduce is already partially fixed with some #undef of the PTRACE_* symbols, but other symbols like the PSR_MODE ones are still present, and undefining them is not safe since a user can include ptrace.h before user.h. My proposition is to define the 2 structures we need in user.h and get rid of the asm/ptrace.h inclusion. Build and make check are clean on AArch64. 2014-05-20 Will Newton <will.newton@linaro.org> Yvan Roux <yvan.roux@linaro.org> * sysdeps/unix/sysv/linux/aarch64/sys/user.h: Remove unused #include of asm/ptrace.h. (PTRACE_GET_THREAD_AREA): Remove #undef. (PTRACE_GETHBPREGS): Likewise. (PTRACE_SETHBPREGS): Likewise. (struct user_regs_struct): New structure. (struct user_fpsimd_struct): New structure. * sysdeps/unix/sysv/linux/aarch64/sys/procfs.h: Remove unused #include of asm/ptrace.h and second #include of sys/user.h. (PTRACE_GET_THREAD_AREA): Remove #undef. (PTRACE_GETHBPREGS): Likewise. (PTRACE_SETHBPREGS): Likewise. (ELF_NGREG): Use new struct user_regs_struct. (elf_fpregset_t): Use new struct user_fpsimd_struct.
* PowerPC: Fix multiarch hypotf PPC64 pathAdhemerval Zanella2014-05-192-0/+5
| | | | This patch moves the hypotf multiarch implementation to correct path.
* Revert "ARM: Improve fenv implementation"Marcus Shawcroft2014-05-1913-93/+99
| | | | This reverts commit c0c08d02c82275353f5c556f935a1a01714d9d7f.
* Fix sparc memcpy data corruption when using niagara2 optimized routines.Jose E. Marchesi2014-05-173-1/+8
| | | | | * sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Add missing membar to avoid block loads/stores to overlap previous stores.
* alpha: Create __syscall_nocancel entry pointsRichard Henderson2014-05-173-21/+23
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* Merge remote-tracking branch 'origin/roland/nptl-alpha'Richard Henderson2014-05-172-10/+11
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| * Alpha: Convert fork.c to arch-fork.hRoland McGrath2014-05-162-10/+11
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* | Fix some termios.h conformtest failures on sparc.David S. Miller2014-05-172-14/+14
| | | | | | | | | | | | | | | | | | * sysdeps/unix/sysv/linux/sparc/bits/termios.h (PAGEOUT, WRAP): Protect with __USE_GNU. (TIOCSET_TEMPT): Likewise. (TIOCM_LE, TIOCM_DTR, TIOCM_RTS, TIOCM_ST, TIOCM_SR, TIOCM_CTS, TIOCM_CAR, TIOCM_RNG, TIOCM_DSR, TIOCM_CD, TIOCM_RI): Remove as these are already provided in bits/ioctl-types.h
* | Fix __waitpid_nocancel link error. linaro/masterRoland McGrath2014-05-162-6/+6
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* | ARM: soft-fp NaN representation correctionMaciej W. Rozycki2014-05-162-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7d92b78723848ae616709eb8f0191ea067025b18 [Fix ARM NAN fraction bits.] removed all the bits set from NANFRAC macros and, when propagated to libgcc, regressed gcc.dg/torture/builtin-math-7.c on soft-fp arm-eabi targets, currently ARMv6-M (`-march=armv6-m -mthumb') only. This is because when used to construct a NaN in the semi-raw mode, they now build an infinity instead. Consequently operations such as (Inf - Inf) now produce Inf rather than NaN. The change worked for the original test case, posted with PR libgcc/60166, because division is made in the canonical mode, where the quiet bit is set separately, from the fp class. This change brings the quiet bit back to these macros, making semi-raw mode calculations produce the expected results again.
* | Use existing makefile variables for dependencies on glibc libraries.Joseph Myers2014-05-1610-42/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glibc's Makeconfig defines some variables such as $(libm) and $(libdl) for linking with libraries built by glibc, and nptl/Makeconfig (included by the toplevel Makeconfig) defines others such as $(shared-thread-library). In some places glibc's Makefiles use those variables when linking against the relevant libraries, but in other places they hardcode the location of the libraries in the build tree. This patch cleans up various places to use the variables that already exist (in the case of libm, replacing several duplicate definitions of a $(link-libm) variable in subdirectory Makefiles). (It's not necessarily exactly equivalent to what the existing code does - in particular, $(shared-thread-library) includes libpthread_nonshared, but is replacing places that just referred to libpthread.so. But I think that change is desirable on the general principle of linking things as close as possible to the way in which they would be linked with an installed library, unless there is a clear reason not to do so.) To support running tests with an installed copy of glibc without needing the full build tree from when that copy was built, I think it will be useful to use such variables more generally and systematically - every time the rules for building a test refer to some file from the build tree that's also installed by glibc, use a makefile variable so that the installed-testing case can point those variables to installed copies of the files. This patch just deals with straightforward cases where such variables already exist. It's quite possible some uses of $(shared-thread-library) should actually be a new $(thread-library) variable that's set appropriately in the --disable-shared case, if those uses would in fact work without shared libraries. I didn't change the status quo that those cases hardcode use of a shared library whether or not it's actually needed (but other uses such as $(libm) and $(libdl) would now get the static library if the shared library isn't built, when some previously hardcoded use of the shared library - if they actually need shared libraries, the test itself needs an enable-shared conditional anyway). Tested x86_64. * benchtests/Makefile ($(addprefix $(objpfx)bench-,$(bench-math))): Depend on $(libm), not $(common-objpfx)math/libm.so. ($(addprefix $(objpfx)bench-,$(bench-pthread))): Depend on $(shared-thread-library), not $(common-objpfx)nptl/libpthread.so. * elf/Makefile ($(objpfx)noload): Depend on $(libdl), not $(common-objpfx)dlfcn/libdl.so. ($(objpfx)tst-audit8): Depend on $(libm), not $(common-objpfx)math/libm.so. * malloc/Makefile ($(objpfx)libmemusage.so): Depend on $(libdl), not $(common-objpfx)dlfcn/libdl.so. * math/Makefile ($(addprefix $(objpfx),$(filter-out $(tests-static),$(tests)))): Depend on $(libm), not $(objpfx)libm.so. Do not condition on [$(build-shared) = yes]. ($(objpfx)test-fenv-tls): Depend on $(shared-thread-library), not $(common-objpfx)nptl/libpthread.so. * misc/Makefile ($(objpfx)tst-tsearch): Depend on $(libm), not $(common-objpfx)math/libm.so$(libm.so-version) or $(common-objpfx)math/libm.a depending on [$(build-shared) = yes]. * nptl/Makefile ($(objpfx)tst-unload): Depend on $(libdl), not $(common-objpfx)dlfcn/libdl.so. * setjmp/Makefile (link-libm): Remove variable. ($(objpfx)tst-setjmp-fp): Depend on $(libm), not $(link-libm). * stdio-common/Makefile (link-libm): Remove variable. ($(objpfx)tst-printf-round): Depend on $(libm), not $(link-libm). * stdlib/Makefile (link-libm): Remove variable. ($(objpfx)bug-getcontext): Depend on $(libm), not $(link-libm). ($(objpfx)tst-strtod-round): Likewise. ($(objpfx)tst-tininess): Likewise. ($(objpfx)tst-strtod-underflow): Likewise. ($(objpfx)tst-strtod6): Likewise. ($(objpfx)tst-tls-atexit): Depend on $(shared-thread-library) and $(libdl), not $(common-objpfx)nptl/libpthread.so and $(common-objpfx)dlfcn/libdl.so.
* | PowerPC: clean BSD Terminal Modes expectation in termios.hAdhemerval Zanella2014-05-162-2/+14
| | | | | | | | | | | | | | | | | | This patch guard the BSD definition for terminal modes in PowerPC specific header fixing the following conformance failures: FAIL: conform/POSIX/termios.h/conform FAIL: conform/POSIX2008/termios.h/conform FAIL: conform/UNIX98/termios.h/conform
* | ARM: Convert fork.c to arch-fork.hRoland McGrath2014-05-162-10/+10
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* Add stub arch-fork.h header.Roland McGrath2014-05-162-0/+28
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* Split arch-fork.h from fork.hRoland McGrath2014-05-168-6/+20
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* Update Swedish translationsAllan McRae2014-05-162-6/+8
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* Fix variable used in sed expression in timezone/MakefileAllan McRae2014-05-162-1/+6
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* SPARC: add prlimit and prlimit64 in <bits/resource.h> (BZ #16943)Aurelien Jarno2014-05-163-1/+32
| | | | | | | | prlimit and prlimit64 have been added in the main <bits/resource.h>, but not in the SPARC specific version. Fix that. Note: this is Debian bug#703559, reported by Emilio Pozuelo Monfort <pochu@debian.org>
* ptsname_r: don't leak uninitialized memory (BZ #16917)Aurelien Jarno2014-05-165-3/+122
| | | | | | | | | | | | | | | If the fd refers to a terminal device, but not a pty master, the TIOCGPTN ioctl returns with ENOTTY. This error is not caught, and the possibly undefined buffer passed to ptsname_r is sent directly to the stat64 syscall. Fix this by using a fallback to the old method only if the TIOCGPTN ioctl fails with EINVAL. This also fix the return value in that specific case (it return ENOENT without this patch). Also add tests to the ptsname_r function (and ptsname at the same time). Note: this is Debian bug#741482, reported by Jakub Wilk <jwilk@debian.org>
* ARM: Improve fenv implementationWilco2014-05-1513-99/+93
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* ARM: Improve fenv implementationWilco2014-05-1517-233/+190
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* Return EAI_AGAIN for AF_UNSPEC when herrno is TRY_AGAIN (BZ #16849)Siddhesh Poyarekar2014-05-153-4/+9
| | | | | | | | | | getaddrinfo correctly returns EAI_AGAIN for AF_INET and AF_INET6 queries. For AF_UNSPEC however, an older change (a682a1bf553b1efe4dbb03207fece5b719cec482) broke the check and due to that the returned error was EAI_NONAME. This patch fixes the check so that a non-authoritative not-found is returned as EAI_AGAIN to the user instead of EAI_NONAME.
* x86: Move abilist files out of nptl/ subdirectories.Roland McGrath2014-05-1444-0/+90
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* Move remaining files out of nptl/sysdeps/unix/sysv/linux/x86/.Roland McGrath2014-05-1417-3/+38
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* Fix mips fork after i386 reorganization.Roland McGrath2014-05-143-1/+4
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* Move remaining nptl/sysdeps/unix/sysv/linux/i386/ files.Roland McGrath2014-05-1461-1/+153
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* Fix powerpc fork after i386 reorganization.Roland McGrath2014-05-143-1/+4
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* Update alpha and ia64 timer_*.c files for x86_64 file moves.Roland McGrath2014-05-1411-10/+20
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* i386: Remove useless pthread_spin_{init,unlock} wrapper files.Roland McGrath2014-05-143-2/+3
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* Move remaining nptl/sysdeps/unix/sysv/linux/x86_64/ files.Roland McGrath2014-05-1426-2/+55
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* x86: Consolidate NPTL fork.Roland McGrath2014-05-144-16/+16
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* Consolidate not-cancel.h files.Roland McGrath2014-05-1411-172/+38
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* Update s390 timer_*.c files for x86_64 file moves.Roland McGrath2014-05-146-5/+10
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* x86_64: Remove useless pthread_spin_{init,unlock} wrapper files.Roland McGrath2014-05-143-2/+3
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* Move x86_64 compat-timer.h out of nptl/Roland McGrath2014-05-142-0/+2
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* Move x86_64 timer_*.c out of nptl/Roland McGrath2014-05-1418-22/+56
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* x86: Consolidate NPTL/non versions of cloneRoland McGrath2014-05-145-29/+6
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* Move NPTL public ABI headers for x86 to sysdeps/x86/nptl/.Roland McGrath2014-05-145-0/+9
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* x86: Consolidate NPTL/non versions of vforkRoland McGrath2014-05-147-196/+51
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* ARM: Consolidate NPTL/non versions of vforkRoland McGrath2014-05-146-77/+112
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* stdlib/gmp-impl.h: Silence -Wundef warning for USE_STACK_ALLOCWill Newton2014-05-142-1/+6
| | | | | | | | | | | | | | | | | | The upstream version of GMP has long removed this conditional altogether in this commit: changeset: 5254:88618a4694ac user: Kevin Ryde <user42@zip.com.au> date: Sun Jun 17 01:37:27 2001 +0200 So just turn the #if into an #ifdef to silence the warning. ChangeLog: 2014-05-14 Will Newton <will.newton@linaro.org> * stdlib/gmp-impl.h: Test USE_STACK_ALLOC #ifdef rather than #if.
* Fix log1pl (LDBL_MAX) in FE_UPWARD mode (bug 16564).Joseph Myers2014-05-148-11/+311
| | | | | | | | | | | | | | | | | | | | | | | Bug 16564 is spurious overflow of log1pl (LDBL_MAX) in FE_UPWARD mode, resulting from log1pl adding 1 to its argument (for arguments not close to 0), which overflows in that mode. This patch fixes this by avoiding adding 1 to large arguments (precisely what counts as large depends on the floating-point format). Tested x86_64 and x86, and spot-checked log1pl tests on mips64 and powerpc64. [BZ #16564] * sysdeps/i386/fpu/s_log1pl.S (__log1pl): Do not add 1 to positive arguments with exponent 65 or above. * sysdeps/ieee754/ldbl-128/s_log1pl.c (__log1pl): Do not add 1 to arguments 0x1p113L or above. * sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (__log1pl): Do not add 1 to arguments 0x1p107L or above. * sysdeps/x86_64/fpu/s_log1pl.S (__log1pl): Do not add 1 to positive arguments with exponent 65 or above. * math/auto-libm-test-in: Add more tests of log1p. * math/auto-libm-test-out: Regenerated.
* Fix cacos (+Inf + finite*i) in round-downward mode (bug 16928).Joseph Myers2014-05-148-4/+113
| | | | | | | | | | | | | | | | | | | | | According to C99/C11 Annex G, cacos applied to a value with real part +Inf and finite imaginary part should produce a result with real part +0. glibc wrongly produces a result with real part -0 in FE_DOWNWARD mode. This patch fixes this by checking for zero results in the relevant case of non-finite arguments (where there should never be a result with -0 real part), and converts the tests of cacos to ALL_RM_TEST. Tested x86_64 and x86 and ulps updated accordingly. [BZ #16928] * math/s_cacos.c (__cacos): Ensure zero real part of result from non-finite arguments is +0. * math/s_cacosf.c (__cacosf): Likewise. * math/s_cacosl.c (__cacosl): Likewise. * math/libm-test.inc (cacos_test): Use ALL_RM_TEST. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
* Fix acosh (1) in round-downward mode (bug 16927).Joseph Myers2014-05-149-5/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to C99 and C11 Annex F, acosh (1) should be +0 in all rounding modes. However, some implementations in glibc wrongly return -0 in round-downward mode (which is what you get if you end up computing log1p (-0), via 1 - 1 being -0 in round-downward mode). This patch fixes the problem implementations, by correcting the test for an exact 1 value in the ldbl-96 implementation to allow for the explicit high bit of the mantissa, and by inserting fabs instructions in the i386 implementations; tests of acosh are duly converted to ALL_RM_TEST. I believe all the other sysdeps/ieee754 implementations are already OK (I haven't checked the ia64 versions, but if buggy then that will be obvious from the results of test runs after this patch is in). Tested x86_64 and x86 and ulps updated accordingly. [BZ #16927] * sysdeps/i386/fpu/e_acosh.S (__ieee754_acosh): Use fabs on x-1 value. * sysdeps/i386/fpu/e_acoshf.S (__ieee754_acoshf): Likewise. * sysdeps/i386/fpu/e_acoshl.S (__ieee754_acoshl): Likewise. * sysdeps/ieee754/ldbl-96/e_acoshl.c (__ieee754_acoshl): Correct for explicit high bit of mantissa when testing for argument equal to 1. * math/libm-test.inc (acosh_test): Use ALL_RM_TEST. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
* Fix erf underflow handling near 0 (bug 16516).Joseph Myers2014-05-149-23/+289
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug 16516 reports spurious underflows from erf (for all floating-point types), when the result is close to underflowing but does not actually underflow. erf (x) is about (2/sqrt(pi))*x for x close to 0, so there are subnormal arguments for which it does not underflow. The various implementations do (x + efx*x) (for efx = 2/sqrt(pi) - 1), for greater accuracy than if just using a single multiplication by an approximation to 2/sqrt(pi) (effectively, this way there are a few more bits in the approximation to 2/sqrt(pi)). This can introduce underflows when efx*x underflows even though the final result does not, so a scaled calculation with 8*efx is done in these cases - but 8 is not a big enough scale factor to avoid all such underflows. 16 is (any underflows with a scale factor of 16 would only occur when the final result underflows), so this patch changes the code to use that factor. Rather than recomputing all the values of the efx8 variable, it is removed, leaving it to the compiler's constant folding to compute 16*efx. As such scaling can also lose underflows when the final scaling down happens to be exact, appropriate checks are added to ensure underflow exceptions occur when required in such cases. Tested x86_64 and x86; no ulps updates needed. Also spot-checked for powerpc32 and mips64 to verify the changes to the ldbl-128ibm and ldbl-128 implementations. [BZ #16516] * sysdeps/ieee754/dbl-64/s_erf.c (efx8): Remove variable. (__erf): Scale by 16 instead of 8 in potentially underflowing case. Ensure exception if result actually underflows. * sysdeps/ieee754/flt-32/s_erff.c (efx8): Remove variable. (__erff): Scale by 16 instead of 8 in potentially underflowing case. Ensure exception if result actually underflows. * sysdeps/ieee754/ldbl-128/s_erfl.c: Include <float.h>. (efx8): Remove variable. (__erfl): Scale by 16 instead of 8 in potentially underflowing case. Ensure exception if result actually underflows. * sysdeps/ieee754/ldbl-128ibm/s_erfl.c: Include <float.h>. (efx8): Remove variable. (__erfl): Scale by 16 instead of 8 in potentially underflowing case. Ensure exception if result actually underflows. * sysdeps/ieee754/ldbl-96/s_erfl.c: Include <float.h>. (efx8): Remove variable. (__erfl): Scale by 16 instead of 8 in potentially underflowing case. Ensure exception if result actually underflows. * math/auto-libm-test-in: Add more tests of erf. * math/auto-libm-test-out: Regenerated.
* Remove last use of USE___THREADAndreas Schwab2014-05-142-149/+8
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* Fix macro warning on HAVE_PT_CHOWNAndreas Schwab2014-05-143-2/+8
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