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2013-11-28Remove unused ldbl-96 functions (bug 15004).Joseph Myers
2013-11-28Add powerpc-nofpu/e500 support functions for atomic compound assignment and ↵Joseph Myers
FLT_ROUNDS.
2013-11-28Fix dbl-64 e_sqrt.c for non-default rounding modes (bug 16271).Joseph Myers
2013-11-26PowerPC: Fix __fe_nomask_env missing symbolAdhemerval Zanella
This patch fix the missing symbol __fe_nomask_env from commit 41e8926aa4b7f17bc95984737ee82a254ad0911c for GLIBC_2.1.
2013-11-26Fix typo in _dl_tlsdesc_resolve_hold.Ondřej Bílka
2013-11-26Use __glibc_reserved instead __unused.Ondřej Bílka
2013-11-25Fix typo in sys/ptrace.h.Carlos O'Donell
The event code is PTRACE_EVENT_SECCOMP, not PTRAVE_EVENT_SECCOMP. This patch fixes the V->C typo. There are no ABI issues since the number remains the same for the code. Code using the old wrong name will need to be updated.
2013-11-25Fix powerpc-nofpu build.Joseph Myers
2013-11-25PowerPC: Set/restore rounding mode only when neededAdhemerval Zanella
This patch helps some math functions performance by adding the libc_fexxx variant of inline functions to handle both FPU round and exception set/restore and by using them on the libc_fexxx_ctx functions. It is based on already coded fexxx family functions for PPC with fpu. Here is the summary of performance improvements due this patch (measured on a POWER7 machine): Before: cos(): ITERS:9.5895e+07: TOTAL:5116.03Mcy, MAX:77.6cy, MIN:49.792cy, 18744 calls/Mcy exp(): ITERS:2.827e+07: TOTAL:5187.15Mcy, MAX:494.018cy, MIN:38.422cy, 5450.01 calls/Mcy pow(): ITERS:6.1705e+07: TOTAL:5144.26Mcy, MAX:171.95cy, MIN:29.935cy, 11994.9 calls/Mcy sin(): ITERS:8.6898e+07: TOTAL:5117.06Mcy, MAX:83.841cy, MIN:46.582cy, 16982 calls/Mcy tan(): ITERS:2.9473e+07: TOTAL:5115.39Mcy, MAX:191.017cy, MIN:172.352cy, 5761.63 calls/Mcy After: cos(): ITERS:2.05265e+08: TOTAL:5111.37Mcy, MAX:78.754cy, MIN:24.196cy, 40158.5 calls/Mcy exp(): ITERS:3.341e+07: TOTAL:5170.84Mcy, MAX:476.317cy, MIN:15.574cy, 6461.23 calls/Mcy pow(): ITERS:7.6153e+07: TOTAL:5129.1Mcy, MAX:147.5cy, MIN:30.916cy, 14847.2 calls/Mcy sin(): ITERS:1.58816e+08: TOTAL:5115.11Mcy, MAX:1490.39cy, MIN:22.341cy, 31048.4 calls/Mcy tan(): ITERS:3.4964e+07: TOTAL:5114.18Mcy, MAX:177.422cy, MIN:146.115cy, 6836.68 calls/Mcy
2013-11-21Adjust generic swapon prototype to match Linux version.Roland McGrath
2013-11-21Don't use broken DL_AUTO_FUNCTION_ADDRESS()Guy Martin
On hppa and ia64, the macro DL_AUTO_FUNCTION_ADDRESS() uses the variable fptr[2] in it's own scope. The content of fptr[] is thus undefined right after the macro exits. Newer gcc's (>= 4.7) reuse the stack space of this variable triggering a segmentation fault in dl-init.c:69. To fix this we rewrite the macros to make the call directly to init and fini without needing to pass back a constructed function pointer.
2013-11-20Add systemtap probe markers for sin, cos, asin and acosSiddhesh Poyarekar
2013-11-19Make powerpc-nofpu floating-point state thread-local (bug 15483).Joseph Myers
2013-11-16Fix spurious "inexact" exceptions from x86 pow with NaN argument (bug 16167).Joseph Myers
2013-11-13PowerPC: Fix __fe_mask_env exportAdhemerval Zanella
Change SHLIB_COMPAT calls to GLIBC_2_19 for __fe_nomask_env symbol.
2013-11-13Set arch_minimum_kernel to 3.4.0 for x32H.J. Lu
x32 ABI support was added in Linux kernel 3.4.0.
2013-11-13PowerPC: Fix __fe_mask_env exportAdhemerval Zanella
This patch does not export __fe_mask_env anymore, only providing a compatibility symbol. It fixes BZ#14143.
2013-11-12Fix sparc 64-bit GMP ifunc resolution in static builds.David S. Miller
[BZ #16150] * sysdeps/sparc/sparc64/multiarch/add_n.S: Resolve to the correct generic symbol in the non-vis3 case in static builds. * sysdeps/sparc/sparc64/multiarch/addmul_1.S: Likewise. * sysdeps/sparc/sparc64/multiarch/mul_1.S: Likewise. * sysdeps/sparc/sparc64/multiarch/sub_n.S: Likewise. * sysdeps/sparc/sparc64/multiarch/submul_1.S: Likewise.
2013-11-08PowerPC: Fix vDSO missing ODP entriesAdhemerval Zanella
This patch fixes the vDSO symbol used directed in IFUNC resolver where they do not have an associated ODP entry leading to undefined behavior in some cases. It adds an artificial OPD static entry to such cases and set its TOC to non 0 to avoid triggering lazy resolutions.
2013-11-06Fix build on pre-v9 32-bit Sparc.David S. Miller
We cannot use fnegd in this code, as fnegd was added in v9. Only fnegs exists in v8 and earlier. [BZ #15985] * sysdeps/sparc/sparc32/fpu/s_fdim.S (__fdim): Do not use fnegd on pre-v9 cpus, use a fnegs+fmovs sequence instead.
2013-10-31Restrict shm_open and shm_unlink to SHMDIR. Fixes bugs 14752 and 15763.Ondřej Bílka
2013-10-30rename configure.in to configure.acMike Frysinger
Autoconf has been deprecating configure.in for quite a long time. Rename all our configure.in and preconfigure.in files to .ac. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-10-28Consolidate conditionals in mp sin/cos functionsSiddhesh Poyarekar
Consolidate conditionals in multiple precision sin and cos functions to prepare the code for addition of probe points.
2013-10-25PowerPC: strcpy/stpcpy optimization for PPC64/POWER7Adhemerval Zanella
This patch intends to unify both strcpy and stpcpy implementationsi for PPC64 and PPC64/POWER7. The idead default powerpc64 implementation is to provide both doubleword and word aligned memory access. For PPC64/POWER7 is also provide doubleword and word memory access, remove the branch hints, use the cmpb instruction for compare doubleword/words, and add an optimization for inputs of same alignment.
2013-10-25Fix stack overflow due to large AF_INET6 requestsSiddhesh Poyarekar
Resolves #16072 (CVE-2013-4458). This patch fixes another stack overflow in getaddrinfo when it is called with AF_INET6. The AF_UNSPEC case was fixed as CVE-2013-1914, but the AF_INET6 case went undetected back then.
2013-10-25Fix incorrect getaddrinfo assertion triggerAllan McRae
[BZ #9954] With the following /etc/hosts: 127.0.0.1 www.my-domain.es 127.0.1.1 www.my-domain.es 192.168.0.1 www.my-domain.es Using getaddrinfo() on www.my-domain.es, trigger the following assertion: ../sysdeps/posix/getaddrinfo.c:1473: rfc3484_sort: Assertion `src->results[i].native == -1 || src->results[i].native == a1_native' failed. This is due to two different bugs: - In rfc3484_sort() rule 7, src->results[i].native is assigned even if src->results[i].index is -1, meaning that no interface is associated. - In getaddrinfo() the source IP address used with the lo interface needs a special case, as it can be any IP within 127.X.Y.Z.
2013-10-18Add e500 port.Joseph Myers
2013-10-17Don't use gethostbyaddr to determine canonical nameAndreas Schwab
2013-10-17Format floating routines.Ondřej Bílka
2013-10-11Add systemtap markers to math function slow pathsSiddhesh Poyarekar
Add systemtap probes to various slow paths in libm so that application developers may use systemtap to find out if their applications are hitting these slow paths. We have added probes for pow, exp, log, tan, atan and atan2.
2013-10-10Fix readdir regressions on sparc 32-bit.David S. Miller
* sysdeps/posix/dirstream.h (struct __dirstream): Fix alignment of directory block.
2013-10-10Update sparc ULPs.David S. Miller
* sysdeps/sparc/fpu/libm-test-ulps: Update.
2013-10-10Extend powerpc-nofpu -fno-builtin-fabsl workaround to more files.Joseph Myers
2013-10-10Avoid ordered comparisons of NaNs in ldbl-128ibm acosl and asinl.Joseph Myers
2013-10-10soft-fp: fix negation NaN handling (bug 16034).Joseph Myers
2013-10-08Use p2align instead ALIGNOndřej Bílka
2013-10-08Format e_pow.cSiddhesh Poyarekar
2013-10-08Format e_exp.cSiddhesh Poyarekar
2013-10-08Consolidate multiple precision sin/cos functionsSiddhesh Poyarekar
2013-10-04Add fork hooks for pthread_atforkSamuel Thibault
pthread_atfork needs application callbacks to be called outside any locking.
2013-10-04Move powerpc ports pieces to libc.Joseph Myers
2013-10-04e500 port: adjust sysdeps/unix/sysv/linux/configure.in case.Joseph Myers
2013-10-04e500 port: fix fpu_control.h constant values.Joseph Myers
2013-10-04e500 port: getcontext / setcontext / swapcontext.Joseph Myers
2013-10-04Use stdint.h types in union unaligned.Alan Modra
* sysdeps/powerpc/powerpc32/dl-machine.c (__process_machine_rela): Use stdint types in rather than __attribute__((mode())). * sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela): Likewise.
2013-10-04Correct little-endian relocation of UADDR64,32,16.Alan Modra
* sysdeps/powerpc/powerpc32/dl-machine.c (__process_machine_rela): Correct handling of unaligned relocs for little-endian. * sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela): Likewise.
2013-10-04PowerPC LE memchr and memrchrAlan Modra
http://sourceware.org/ml/libc-alpha/2013-08/msg00105.html Like strnlen, memchr and memrchr had a number of defects fixed by this patch as well as adding little-endian support. The first one I noticed was that the entry to the main loop needlessly checked for "are we done yet?" when we know the size is large enough that we can't be done. The second defect I noticed was that the main loop count was wrong, which in turn meant that the small loop needed to handle an extra word. Thirdly, there is nothing to say that the string can't wrap around zero, except of course that we'd normally hit a segfault on trying to read from address zero. Fixing that simplified a number of places: - /* Are we done already? */ - addi r9,r8,8 - cmpld r9,r7 - bge L(null) becomes + cmpld r8,r7 + beqlr However, the exit gets an extra test because I test for being on the last word then if so whether the byte offset is less than the end. Overall, the change is a win. Lastly, memrchr used the wrong cache hint. * sysdeps/powerpc/powerpc64/power7/memchr.S: Replace rlwimi with insrdi. Make better use of reg selection to speed exit slightly. Schedule entry path a little better. Remove useless "are we done" checks on entry to main loop. Handle wrapping around zero address. Correct main loop count. Handle single left-over word from main loop inline rather than by using loop_small. Remove extra word case in loop_small caused by wrong loop count. Add little-endian support. * sysdeps/powerpc/powerpc32/power7/memchr.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memrchr.S: Likewise. Use proper cache hint. * sysdeps/powerpc/powerpc32/power7/memrchr.S: Likewise. * sysdeps/powerpc/powerpc64/power7/rawmemchr.S: Add little-endian support. Avoid rlwimi. * sysdeps/powerpc/powerpc32/power7/rawmemchr.S: Likewise.
2013-10-04PowerPC LE memsetAlan Modra
http://sourceware.org/ml/libc-alpha/2013-08/msg00104.html One of the things I noticed when looking at power7 timing is that rlwimi is cracked and the two resulting insns have a register dependency. That makes it a little slower than the equivalent rldimi. * sysdeps/powerpc/powerpc64/memset.S: Replace rlwimi with insrdi. Formatting. * sysdeps/powerpc/powerpc64/power4/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power6/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memset.S: Likewise. * sysdeps/powerpc/powerpc32/power4/memset.S: Likewise. * sysdeps/powerpc/powerpc32/power6/memset.S: Likewise. * sysdeps/powerpc/powerpc32/power7/memset.S: Likewise.
2013-10-04PowerPC LE memcpyAlan Modra
http://sourceware.org/ml/libc-alpha/2013-08/msg00103.html LIttle-endian support for memcpy. I spent some time cleaning up the 64-bit power7 memcpy, in order to avoid the extra alignment traps power7 takes for little-endian. It probably would have been better to copy the linux kernel version of memcpy. * sysdeps/powerpc/powerpc32/power4/memcpy.S: Add little endian support. * sysdeps/powerpc/powerpc32/power6/memcpy.S: Likewise. * sysdeps/powerpc/powerpc32/power7/memcpy.S: Likewise. * sysdeps/powerpc/powerpc32/power7/mempcpy.S: Likewise. * sysdeps/powerpc/powerpc64/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise. Make better use of regs. Use power7 mtocrf. Tidy function tails.
2013-10-04PowerPC LE memcmpAlan Modra
http://sourceware.org/ml/libc-alpha/2013-08/msg00102.html This is a rather large patch due to formatting and renaming. The formatting changes were to make it possible to compare power7 and power4 versions of memcmp. Using different register defines came about while I was wrestling with the code, trying to find spare registers at one stage. I found it much simpler if we refer to a reg by the same name throughout a function, so it's better if short-term multiple use regs like rTMP are referred to using their register number. I made the cr field usage changes when attempting to reload rWORDn regs in the exit path to byte swap before comparing when little-endian. That proved a bad idea due to the pipelining involved in the main loop; Offsets to reload the regs were different first time around the loop.. Anyway, I left the cr field usage changes in place for consistency. Aside from these more-or-less cosmetic changes, I fixed a number of places where an early exit path restores regs unnecessarily, removed some dead code, and optimised one or two exits. * sysdeps/powerpc/powerpc64/power7/memcmp.S: Add little-endian support. Formatting. Consistently use rXXX register defines or rN defines. Use early exit labels that avoid restoring unused non-volatile regs. Make cr field use more consistent with rWORDn compares. Rename regs used as shift registers for unaligned loop, using rN defines for short lifetime/multiple use regs. * sysdeps/powerpc/powerpc64/power4/memcmp.S: Likewise. * sysdeps/powerpc/powerpc32/power7/memcmp.S: Likewise. Exit with addi 1,1,64 to pop stack frame. Simplify return value code. * sysdeps/powerpc/powerpc32/power4/memcmp.S: Likewise.
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