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* PowerPC: powerpc64le abilist for 2.17Adhemerval Zanella2014-02-0413-0/+3149
| | | | This patch is the abifiles for powerpc64le based on GLIBC 2.17.
* abilist-pattern configurabilityAdhemerval Zanella2014-02-041-0/+4
| | | | | | | This patch creates implicit rules to match the abifiles if abilist-pattern is defined in the architecture Makefile. This allows machine specific Makefiles to define different abifiles names (for instance *-le.abilist for powerpc64le).
* Update x86_64 ULPs (AMD family 21, model 2)Eric Wong2014-02-041-3/+161
| | | | Tested on an AMD FX-8320 CPU
* Update x86_64 ULPs (AMD Family 10h)Eric Wong2014-02-041-2/+611
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* Disable x87 inline functions for SSE2 mathH.J. Lu2014-01-291-2/+2
| | | | | | | When i386 and x86-64 mathinline.h was merged into a single mathinline.h, "gcc -m32" enables x87 inline functions on x86-64 even when -mfpmath=sse and SSE2 is enabled. It is a regression on x86-64. We should check __SSE2_MATH__ instead of __x86_64__ when disabling x87 inline functions.
* Add -mieee to SH sysdep-CFLAGS for older SH compilers.Kaz Kojima2014-01-281-0/+3
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* Regenerate SH libm-test-ulps with proper compiler options.Kaz Kojima2014-01-271-9/+716
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* Rebuild sparc ULPs.David S. Miller2014-01-241-1203/+9817
| | | | * sysdeps/sparc/fpu/libm-test-ulps: Regenerate.
* Move SH libm-test-ulps to sysdeps/sh and regenerate it.Kaz Kojima2014-01-252-1094/+5486
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* Restore ucontext ABI for soft-float sh4.Kaz Kojima2014-01-242-99/+1
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* Adjust SH specific fpu_control.h and ucontext.h files.Kaz Kojima2014-01-233-103/+31
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* S/390: Merge 32 and 64 bit ucontext.h.Andreas Krebbel2014-01-222-98/+6
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* Include generic symbol-hacks.h for x32H.J. Lu2014-01-201-1/+1
| | | | | | In BZ #15605 fix with addding memset/memmove alias in symbol-hacks.h, x32 symbol-hacks.h change was missing. Fixed by including <sysdeps/generic/symbol-hacks.h> in x32 symbol-hacks.h.
* PowerPC: Fix gettimeofday ifunc selectionAdhemerval Zanella2014-01-202-4/+10
| | | | | | | | | | | | The IFUNC selector for gettimeofday runs before _libc_vdso_platform_setup where __vdso_gettimeofday is set. The selector then sets __gettimeofday (the internal version used within GLIBC) to use the system call version instead of the vDSO one. This patch changes the check if vDSO is available to get its value directly instead of rely on __vdso_gettimeofday. This patch changes it by getting the vDSO value directly. It fixes BZ#16431.
* s390: implement sotruss supportMike Frysinger2014-01-161-0/+62
| | | | | | | | | | | | | See commit 41b1792698a335d3a85381921a84a16e9635f36a for testcase. Note: while this works on s390x, the s390 code hangs when using -e. But it hangs regardless of this code (the hang seems to occur before the exit func is even called). I didn't look too closely at it as it seems to be an issue external to this file, so this code shouldn't make the situation any worse. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* PowerPC: Fix ftime gettimeofday internal call returning bogus dataAdhemerval Zanella2014-01-162-4/+36
| | | | | | | | | | | | This patches fixes BZ#16430 by setting a different symbol for internal GLIBC calls that points to ifunc resolvers. For PPC32, if the symbol is defined as hidden (which is the case for gettimeofday and time) the compiler will create local branches (symbol@local) and linker will not create PLT calls (required for IFUNC). This will leads to internal symbol calling the IFUNC resolver instead of the resolved symbol. For PPC64 this behavior does not occur because a call to a function in another translation unit might use a different toc pointer thus requiring a PLT call.
* PowerPC: sotruss-lib implementationAdhemerval Zanella2014-01-151-0/+69
| | | | This patch add the missing sotruss-lib interfaces for PowerPC.
* Do not enable asynchronous cancellation in system. Fixes bug 14782.Ondřej Bílka2014-01-151-10/+1
| | | | | | We needlessly enabled thread cancellation before it was necessary. As only call that needs to be guarded is waitpid which is cancellation point we could remove cancellation altogether.
* [BZ #16427] Fix ldbl-128 exp overflows.Andreas Krebbel2014-01-151-13/+5
| | | | | Invoke the non-IEEE handling only for numbers special also in the IEEE case. This aligns the exp handling with the other ldbl variants.
* S/390: Regenerate ULPs.Andreas Krebbel2014-01-151-1139/+9960
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* ARM: Disable compat mcount code when unneeded.Roland McGrath2014-01-101-0/+42
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* Fix a thinko/typo in i686's memmove (aka __memmove_ia32).Yuriy Kaminskiy2014-01-091-2/+2
| | | | | * sysdeps/i386/i686/memmove.S (memmove): Compare distance between SRC and DEST against LEN.
* PowerPC: remove wrong truncl implementation for PowerPC64Adhemerval Zanella2014-01-082-123/+0
| | | | | | | | | | | | | | | The truncl assembly implementation (sysdeps/powerpc/powerpc64/fpu/s_truncl.S) returns wrong results for some inputs where first double is a exact integer and the precision is determined by second long double. Checking on implementation comments and history, I am very confident the assembly implementation was based on a version before commit 5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in long double (ldbl-128ibm) rounding functions in glibc-2.4). By just removing the implementation and make the build select sysdeps/ieee754/ldbl-128ibm/s_truncl.c instead it fixes tgammal issues regarding wrong result sign.
* Update powerpc-fpu ULPs.Adhemerval Zanella2014-01-081-6/+91
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* Fix ldbl-128ibm expm1l on large arguments (bug 16408).Joseph Myers2014-01-081-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes bug 16408, ldbl-128ibm expm1l returning NaN for some large arguments. The basic problem is that the approach of converting the exponent to the form n * log(2) + y, where -0.5 <= y <= 0.5, then computing 2^n * expm1(y) + (2^n - 1) falls over when 2^n overflows (starting slightly before the point where expm1 overflows, when y is negative and n is the least integer for which 2^n overflows). The ldbl-128 code, and the x86/x86_64 code, make expm1l fall back to expl for large positive arguments to avoid this issue. This patch makes the ldbl-128ibm code do the same. (The problem appears for the particular argument in the testsuite because the ldbl-128ibm code also uses an overflow threshold that's for ldbl-128 and is too big for ldbl-128ibm, but the problem described applies for large non-overflowing cases as well, although during the freeze is not a suitable time for making the expm1 tests cover cases close to overflow more thoroughly.) This leaves some code for large positive arguments in expm1l that is now dead. To keep the code for ldbl-128 and ldbl-128ibm similar, and to avoid unnecessary changes during the freeze, the patch doesn't remove it; instead I propose to file a bug in Bugzilla as a reminder that this code (for overflow, including errno setting, and for arguments of +Inf) is no longer needed and should be removed from both those expm1l implementations. Tested powerpc32. * sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Use __expl for large positive arguments.
* Regenerate powerpc-nofpu ulps (again).Joseph Myers2014-01-071-52/+64
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* Fix ldbl-128ibm coshl spurious overflows (bug 16407).Joseph Myers2014-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | This patch fixes bug 16407, spurious overflows from ldbl-128ibm coshl. The implementation assumed that a high part (reinterpreted as an integer) of the absolute value of the argument of 0x408633ce8fb9f87dLL or more meant overflow, but the actual threshold has high part 0x408633ce8fb9f87eLL (and a negative low part). The patch adjusts the threshold accordingly. sinhl probably has the same issue, but I didn't get that far in adding tests of special cases (such as just below and above overflow) before the freeze and during the freeze is not a suitable time to add them (as they'd require ulps to be regenerated again), so I'm not changing that function for now; when I add more tests of special cases, we'll discover whether sinhl indeed has this problem. Tested powerpc32. * sysdeps/ieee754/ldbl-128ibm/e_coshl.c (__ieee754_coshl): Increase overflow threshold.
* S/390: Remove __tls_get_addr argument cast.Andreas Krebbel2014-01-071-1/+1
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* S/390: Get rid of unused variable warning in dl-machine.hAndreas Krebbel2014-01-071-1/+2
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* S/390: Make ucontext_t extendible.Andreas Krebbel2014-01-0716-17/+290
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* S/390: Make jmp_buf extendible.Andreas Krebbel2014-01-0726-24/+649
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* Fix ldbl-128 / ldbl-128ibm lgammal spurious underflow (bug 16400).Joseph Myers2014-01-061-1/+3
| | | | | | | | | | | | | | This patch fixes bug 16400, spurious underflow exceptions for ldbl-128 / ldbl-128ibm lgammal with small positive arguments, by just using -__logl (x) as the result in the problem cases (similar to the previous fix for problems with small negative arguments). Tested powerpc32, and also tested on mips64 that this does not require ulps regeneration for the ldbl-128 case. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Return -__logl (x) for small positive arguments without evaluating a polynomial.
* ptrace.h: add __ prefix to ptrace_peeksiginfo_argsMike Frysinger2014-01-064-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | All the other ptrace structures in this file have a __ prefix except this new one. This in turn causes build problems for most packages that try to use ptrace such as strace: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../linux/x86_64 -I../../linux \ -I./linux -Wall -Wwrite-strings -g -O2 -MT process.o -MD -MP \ -MF .deps/process.Tpo -c -o process.o ../../process.c In file included from ../../process.c:63:0: /usr/include/linux/ptrace.h:58:8: error: redefinition of 'struct ptrace_peeksiginfo_args' struct ptrace_peeksiginfo_args { ^ In file included from ../../defs.h:159:0, from ../../process.c:37: /usr/include/sys/ptrace.h:191:8: note: originally defined here struct ptrace_peeksiginfo_args ^ Since this struct was introduced in glibc-2.18, there shouldn't be any real regressions with adding the __ prefix. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Update ULPs for i386Andreas Jaeger2014-01-051-0/+84
| | | | Update based on testing with GCC 4.8.1 on Intel i7
* tst-fanotify: switch to AC_DEFINEMike Frysinger2014-01-043-2/+4
| | | | | Reported-by: Joseph S. Myers <joseph@codesourcery.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix soft-float ldbl-128ibm atan2l signs of zero results (bug 16390).Joseph Myers2014-01-031-0/+1
| | | | | | | | | | | This patch fixes bug 16390, incorrect signs of zero results from ldbl-128ibm atan2l, soft-float only. The problem is a longstanding GCC bug with fabsl not being correct for signed zero for soft float, and the fix is using -fno-builtin-fabsl as a workaround, as already done for various other source files. Tested powerpc-nofpu. * sysdeps/powerpc/nofpu/Makefile [$(subdir) = math] (CFLAGS-e_atan2l.c): Use -fno-builtin-fabsl.
* PowerPC: Fix compiler warningsAdhemerval Zanella2014-01-034-4/+4
| | | | | This patch fixes some compile warnings related to extra tokens at end of #undef directive from multilib patchset.
* Regenerate powerpc-nofpu ulps.Joseph Myers2014-01-031-963/+7499
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* Fix ldbl-128ibm logl inaccuracy (bug 16386).Joseph Myers2014-01-021-0/+8
| | | | | | | | | | | | This patch fixes bug 16386, ldbl-128ibm logl inaccuracy (with consequent inaccuracy for lgammal) for arguments where the high double is subnormal, which showed up while attempting to regenerate ulps for powerpc-nofpu for 2.19. The problem here is logic failing to allow for subnormals when calculating the exponent of the argument. Tested for powerpc-nofpu. * sysdeps/ieee754/ldbl-128ibm/e_logl.c (__ieee754_logl): Adjust numbers with subnormal high part when calculating exponent.
* Fix ldbl-128ibm asinhl inaccuracy (bug 16385).Joseph Myers2014-01-021-1/+1
| | | | | | | | | | | This patch fixes bug 16385, ldbl-128ibm asinhl inaccuracy, which showed up while attempting to regenerate ulps for powerpc-nofpu for 2.19. The problem here was use of fabs instead of fabsl meaning large arguments were reduced to the precision of double. Tested for powerpc-nofpu. * sysdeps/ieee754/ldbl-128ibm/s_asinhl.c (__asinhl): Use fabsl not fabs.
* Fix ldbl-128ibm acoshl inaccuracy (bug 16384).Joseph Myers2014-01-021-2/+2
| | | | | | | | | | | | | | | This patch fixes bug 16384, ldbl-128ibm acoshl inaccuracy, which showed up while attempting to regenerate ulps for powerpc-nofpu for 2.19. There were two separate problems, use of __log1p instead of __log1pl and an insufficiently accurate constant value for log 2 (which this patch replaces by use of M_LN2l), each of which could cause substantial inaccuracy in affected cases. Tested for powerpc-nofpu. * sysdeps/ieee754/ldbl-128ibm/e_acoshl.c (ln2): Initialize with M_LN2l. (__ieee754_acoshl): Use __log1pl not __log1p.
* Regenerate x86 / x86_64 ulps.Joseph Myers2014-01-012-5812/+33
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* Update copyright notices with scripts/update-copyrightsAllan McRae2014-01-013066-3066/+3066
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* tst-fanotify: check for linux/fanotify.h existenceMike Frysinger2013-12-313-0/+61
| | | | | | | | We support older kernels that lack this header, so check for it before we try to use it. Reported-by: Adhemerval Zanella <azanella@linux.vnet.ibm.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix typo in csloww()Allan McRae2013-12-271-1/+1
| | | | | An incorrect variable name was used during the refactoring done in commit 4aafb73c.
* Update powerpc-fpu ULPs.Adhemerval Zanella2013-12-231-73/+4075
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* Fix ldbl-128 lgammal for small negative arguments (bug 16337).Joseph Myers2013-12-221-2/+2
| | | | | | | | | | | | | | | | | | | | | This patch fixes bug 16337, ldbl-128 lgammal spurious overflows for small negative arguments (the arguments in question are already in the testsuite). The implementation uses the reflection formula to compute lgamma of negative x from lgamma of -x, effectively resulting in a calculation -log(x^2) + log(-x); cancellation isn't problematic in this case (bugs for problematic cancellation in lgamma are 2542, 2543, 2558), but the x^2 calculation can underflow (in which case there is spurious logic to return an overflowing value - lgamma can only ever correctly overflow for large positive arguments, though tgamma can overflow for small arguments of either sign as well as large positive arguments). The fix is simply to calculate the result directly with logl when the argument is a small enough negative number. Tested mips64. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Calculate results for small negative arguments directly rather than using reflection formula with special underflow handling.
* Flatten sysdeps/unix/bsd/bsd4.4 into sysdeps/unix/bsd.Joseph Myers2013-12-2217-14/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As discussed in <https://sourceware.org/ml/libc-alpha/2012-04/msg00840.html> and <https://sourceware.org/ml/libc-alpha/2012-04/msg00989.html>, it seems appropriate to flatten sysdeps/unix/bsd/bsd4.4 into sysdeps/unix/bsd. The bulk of the patch is just moving files. The only other changes are: update paths in sysdeps/mach/hurd/Implies and sysdeps/unix/sysv/linux/wait3.c; merge the two syscalls.list files, with the removal of syscalls that were in sysdeps/unix/bsd/syscalls.list but overridden in the bsd4.4 directory by .c files there. Tested x86_64. The installed shared libraries are identical before and after the patch except for libc.so where the move of wait3.c (included by sysdeps/unix/sysv/linux/wait3.c) affects debug info, but the disassembly is unchanged. * sysdeps/mach/hurd/Implies: Change unix/bsd/bsd4.4 to unix/bsd. * sysdeps/unix/bsd/syscalls.list (chflags): Add entry from sysdeps/unix/bsd/bsd4.4/syscalls.list. (fchflags): Likewise. (revoke): Likewise. (setlogin): Likewise. (sigaltstack): Likewise. (wait4): Likewise. (sigblock): Remove. (sigsetmask): Likewise. (wait3): Likewise. (waitpid): Likewise. * sysdeps/unix/bsd/bsd4.4/syscalls.list: Remove file. * sysdeps/unix/sysv/linux/wait3.c: Update directory of included file. * sysdeps/unix/bsd/bsd4.4/Makefile: Move to ... * sysdeps/unix/bsd/Makefile: ... here. * sysdeps/unix/bsd/bsd4.4/Versions: Move to ... * sysdeps/unix/bsd/Versions: ... here. * sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h: Move to ... * sysdeps/unix/bsd/bits/sockaddr.h: ... here. * sysdeps/unix/bsd/bsd4.4/cmsg_nxthdr.c: Move to ... * sysdeps/unix/bsd/cmsg_nxthdr.c: ... here. * sysdeps/unix/bsd/bsd4.4/sigblock.c: Move to ... * sysdeps/unix/bsd/sigblock.c: ... here. * sysdeps/unix/bsd/bsd4.4/sigsetmask.c: Move to ... * sysdeps/unix/bsd/sigsetmask.c: ... here. * sysdeps/unix/bsd/bsd4.4/sigvec.c: Move to ... * sysdeps/unix/bsd/sigvec.c: ... here. * sysdeps/unix/bsd/bsd4.4/tcdrain.c: Move to ... * sysdeps/unix/bsd/tcdrain.c: ... here. * sysdeps/unix/bsd/bsd4.4/tcgetattr.c: Move to ... * sysdeps/unix/bsd/tcgetattr.c: ... here. * sysdeps/unix/bsd/bsd4.4/tcsetattr.c: Move to ... * sysdeps/unix/bsd/tcsetattr.c: ... here. * sysdeps/unix/bsd/bsd4.4/wait.c: Move to ... * sysdeps/unix/bsd/wait.c: ... here. * sysdeps/unix/bsd/bsd4.4/wait3.c: Move to ... * sysdeps/unix/bsd/wait3.c: ... here. * sysdeps/unix/bsd/bsd4.4/waitpid.c: Move to ... * sysdeps/unix/bsd/waitpid.c: ... here.
* Fix x86 / x86_64 expl / expl10l wild results in directed rounding modes (bug ↵Joseph Myers2013-12-214-17/+227
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 16356). This patch fixes bug 16356, bad results from x86 / x86_64 expl / exp10l in directed rounding modes, the most serious of the bugs shown up by my patch expanding libm test coverage. When I fixed bug 16293, I thought it was only necessary to set round-to-nearest when using frndint in expm1 functions, because in other cases the cancellation error from having the resulting fractional part close to 1 or -1 would not be significant. However, in expl and exp10l, the way the final fractional part gets computed (something more complicated than a simple subtraction, because more precision is needed than you'd get that way) can result in a value outside the range [-1, 1] when the argument to frndint was very close to an integer and was rounded the "wrong" way because of the rounding mode - and the f2xm1 instruction has undefined results if its argument is outside [-1, 1], so resulting in the large errors seen. So this patch removes the USE_AS_EXPM1L conditionals on the round-to-nearest settings, so all of expl, expm1l and exp10l now get round-to-nearest used for frndint (meaning the final fractional part can at most be slightly above 0.5 in magnitude). Associated tests of exp and exp10 are added and testing of exp10 in directed rounding modes enabled. Tested x86_64 and x86 and ulps updated accordingly. * sysdeps/i386/fpu/e_expl.S (IEEE754_EXPL): Also set round-to-nearest for [!USE_AS_EXPM1L]. * sysdeps/x86_64/fpu/e_expl.S (IEEE754_EXPL): Likewise. * math/auto-libm-test-in: Do not expect cosh tests to fail. Add more tests of exp and exp10. Expect some exp10 tests to miss exceptions or fail in directed rounding modes. * math/auto-libm-test-out: Regenerated. * math/libm-test.inc (exp10_tonearest_test_data): New array. (exp10_test_tonearest): New function. (exp10_towardzero_test_data): New array. (exp10_test_towardzero): New function. (exp10_downward_test_data): New array. (exp10_test_downward): New function. (exp10_upward_test_data): New array. (exp10_test_upward): New function. (main): Call the new functions. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
* Add more libm-test coverage of [a-c]* real functions.Joseph Myers2013-12-202-11/+1003
| | | | | | | | | | | | | | | | | | | | | | | | Various libm functions have inadequate test coverage in libm-test.inc / auto-libm-test-in - failing to cover all the usual special cases (infinities, NaNs, zero, large and small finite values, subnormals) as well as a reasonable range of ordinary inputs and, where appropriate, inputs close to the thresholds for underflow and overflow. This patch improves test coverage for real functions [a-c]* (with the expectation of adding more coverage for other functions later). Tested x86_64 and x86 and ulps updated accordingly (and eight glibc bugs and one C11 DR filed for issues found in the process). * math/auto-libm-test-in: Add more tests of acos, acosh, asin, asinh, atan, atan2, atanh, cbrt, cos and cosh. * math/auto-libm-test-out: Regenerated. * math/libm-test.inc (acosh_test_data): Add more tests. (atanh_test_data): Likewise. (ceil_test_data): Likewise. (copysign_test_data): Likewise. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
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