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2014-09-09sparc: update ptrace.h to latest from glibcGustavo Zacarias
Update sys/ptrace.h to latest glibc release for a lot of missing definitions. Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
2014-09-09powerpc: update ptrace.h to latest from glibcGustavo Zacarias
Update sys/ptrace.h to latest glibc release for a lot of missing definitions. Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
2014-09-05libc: split multi-source epoll.cBernhard Reutner-Fischer
We cannot override individual functions on a per-arch basis otherwise Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-09-04sparc: remove sparc64/sparcv9 codeWaldemar Brodkorb
The sparc64/sparcv9 code is incomplete. Furthermore there is no real embedded hardware for sparc64 available, so better remove it until someone comes up with a complete port. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-28m68k: fix typoWaldemar Brodkorb
otherwise you get compile warnings, when building for m68k. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-28Revert "sparc: disable cancellable system, as it fails in strange ways right ↵Waldemar Brodkorb
now" This reverts commit 1db4f8f8389f6a935ecd83aff7fcce5d1cf2c0f3. It is unclear in which way this is breaking sparc systems. With this change added you get following linking error: libpthread/nptl/libpthread_so.a(pt-system.oS): In function `__libc_system': libc/stdlib/system.c:64: undefined reference to `__wait4_nocancel' Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-28Revert "sparc: use HIDDEN_JUMPTARGET for errno"Waldemar Brodkorb
This reverts commit f51fb26dbcceee9e48d10facc830bd4a549f6cc2. This fixes linking error for sparc build. While building a sparc system you get following linking error: libc/sysdeps/linux/sparc/pipe.S:54: undefined reference to `__GI___errno_location' Removing the HIDDEN_JUMPTARGET fixes the issue, while using gcc 4.8.3/binutils 2.24. The definition of __errno_location was changed recently here: http://git.uclibc.org/uClibc/commit/?id=8f550715c2b211036fc273add3cb5219397ed312 Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-25microblaze: Remove duplicate F_{S,G}ETPIPE_SZBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-25fcntl.h: Define F_SETPIPE_SZ and F_GETPIPE_SZKhem Raj
Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-25mathinline.h: Use __extern_inlineBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-25Add clock_adjtime syscallKhem Raj
Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-20fix for pipe() on sparcWaldemar Brodkorb
When using something like this: $ echo foo|grep foo|wc -l with mksh shell, you get an runtime error. Glibc and klibc does not do these extra check. After removing this check using double pipes work fine. Tested with Qemu 2.1.0. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Thorsten Glaser <tg@mirbsd.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-18libc: add issetugid()Anthony G. Basile
issetugid() returns 1 if the process environment or memory address space is considered tainted, and returns 0 otherwise. This happens, for example, when a process's privileges are elevated by the setuid or setgid flags on an executable belonging to root. This function first appeard in OpenBSD 2.0 and is needed for the LibreSSL. This patch follows the same logic as the equivalent musl commit. For more information see the commit message at http://git.musl-libc.org/cgit/musl/commit/?id=ddddec106fd17c3aca3287005d21e92f742aa9d4 Signed-off-by: Anthony G. Basile <blueness@gentoo.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-18lseek: Correct order of offset argumentsAnton Kolesov
There was a runtime error in systems without large file support. Call fseek(fd, 4096, SEEK_SET) has been failing with EINVAL, though it was succeeding for offset = 4092. This has been happening because llseek system call accepts 64-bit value as an offset argument and lseek function has been ordering 32-bits words that form this offset value, according to the endianness. However this ordering to match endianness is not required, because llseek doesn't accept one 64-bit offset argument, it accepts two 32-bit offset argument, then stitches them into one following its endianness. As a result on little endian system, order of words has been swapped two time: in libc and in kernel. Thus call to fseek with offset 4096 (0x1000) was doing a system call to llseek with offset 0x1000_0000_0000. I'm not entirely sure why then offset = 4092 hasn't been failing then. This patch removes malicious swap of words when calling llseek. Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-18libc: posix_fadvise: Fix build breakage for !LFSVineet Gupta
commit 00571b43df2e "libc: posix_fadvise: restore implementation for xtensa" enabled posix_fadvise() for all arches (it was just not generated before). However this also unearthed an issue introduced by ee84b8b400 "linux: posix_fadvise: use new SYSCALL_ALIGN_64BIT" which is to referencing LFS'ish code (off64_t) w/o proper checks which causes build to break for !LFS. Fix this by calling posix_fadvise64() only for LFS case and open-code it's equivalent for !LFS. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Baruch Siach <baruch@tkos.co.il> Cc: Khem Raj <raj.khem@gmail.com> Cc: markos Chandras <markos.chandras@gmail.com> Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-18unbreak networking code for sparcWaldemar Brodkorb
This commit 1e2e4ac6193ffe0900bd392fa3c596883771eb34 breaks networking on sparc systems. In Linux the socket functions are declared, but not implemented and must be routed through socketcall(). Tested via Qemu 2.0.0. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-18ARC/NPTL: clone to set TP if CLONE_SETTLSVineet Gupta
Typically kernel would set the TP register of newly created thread in clone syscall with CLONE_SETTLS. However this implies that: * kernel knows of the exact TP register (which is already different for ARCompact and ARCv2) and is a detail which becomes part of the ABI * kernel also needs to handle the unlikely but possible case of !TLS userspace (e.g. Android libc) case where TP reg is not reserved and thus need not be mucked with (using ELF personality based detection) It is better to confine this detail to userspace runtime and set TP reg right after clone syscall returns. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-18NPTL: ARC supportVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-08-01bits/time.h: sync with latest glibcMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2014-07-22ARC: Implement native GDB requirements in procfs.hAnton Kolesov
Native GDB requires elf_fpregset_t to be defined, even if floating point registers are absent. In this case we use empty structure. Additionally we redefined prfpregset_t to use this new type. And there has been an error: it was defined that user_regs_struct has 20 registers, while it has 40. Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-07-22ARC: clone: Ensure that @fn returns back to cloneVineet Gupta
This showed up due to longstanding test/unistd/clone failure where post clone, the callback was not exiting and rather falling thru in into main program. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-07-22ARC: make sigaction inline with other archesVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-07-22ARC: syscalls.h: code-reuse/fix-arg-annotationsVineet Gupta
- Use syscalls-common.h vers of INTERNAL_SYSCALL / INLINE_SYSCALL_NOERR - INLINE_SYSCALL takes syscall name (e.g. write) - {INLINE,INTERNAL}_SYSCALL_NCS macros take syscall num (__NR_write) Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-07-22syscalls-common.h: Rename some macro args for correct documentationVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-06-24open64: ensure that openat check worksVineet Gupta
For ARC builds atleast, __NR_xxx was not trickling into in open64.c causing open64->openat a needless detour via open Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-06-12fix pthread_cancel lead to segmentation fault for x86_64.Zhang Pu
When x86_64 cpu contains 'cpu_has_xsave' flag(in kernel),call the pthread_cancel will have a segmentation fault. Because gcc could not find the end of stack in user signal stack. Signed-off-by: Zhang Pu <glen4linux@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-06-12arm: move check for BX to its own headerYann E. MORIN
As Will noticed, the header this check is currently done in is asm-only, and is not meant to be included from C code. This breaks compilation when compiled for a Thumb2-aware CPU. Move the BX check to its own header, and revert 7a246fd. Reported-by: Will Newton <will.newton@gmail.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> Cc: Will Newton <will.newton@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-06-12arm/clone.S: Add missing IT instruction for Thumb2.Will Newton
The conditional load needs to be made part of an IT block on Thumb2 cores. Signed-off-by: Will Newton <will.newton@linaro.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-04-23resolv: try next server on SERVFAILMichel Stam
Commit e1420eca7374cd8f583e9d774c890645a205aaee fixed a bug where a response code should mean the next server is tried. However, it tries only the next search domain, and never skips to the next server. This fix makes sure we try the next server on SERVFAIL. Signed-off-by: Michel Stam <michel@reverze.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-04-23weak symbols need to be "defined" weak but "declared" strongVineet Gupta
Patch "LT.old: Make __errno_location/__h_errno_location thread safe" uncovered yet another bug with static linking and errno (hopefully this is last of them all). Currently, __errno_location is declared weak but is defined strong. While this provides with the desired weak semantics in dso, it is subtly broken in static links. Quoting Joern Rennecke (ARC gcc expert): | I think the issue is that you declare the function as weak in the | header file. That is a rare instance where you want the reference | use declaration that differs a bit from the definition. | If the reference uses a weakly declared function, that creates a | weakref, i.e. the linker won't bother to look for this symbol at | all - if it gets linked in for some other reason, fine, | otherwise, it stays zero. So the solution to declare strong, define weak. Supporting data ----------------- orig code: ARM mmap wrapper (LT.old build + my prev patch for errno) _mmap: @ args = 8, pretend = 0, frame = 0 @ frame_needed = 0, uses_anonymous_args = 0 stmfd sp!, {r4, r5, r7, lr} ldr r5, [sp, #20] movs ip, r5, asl #20 beq .L2 bl __errno_location(PLT) mov r3, #22 str r3, [r0, #0] mvn r0, #0 ... ... .weak __errno_location A statically linked hello world program which uses mmap too. As we can see__errno_location is completely gone - which is semantically wrong - we need functional errno. 00008274 <__GI_mmap>: 8274: e92d40b0 push {r4, r5, r7, lr} 8278: e59d5014 ldr r5, [sp, #20] 827c: e1b0ca05 lsls ip, r5, #20 8280: 0a000004 beq 8298 8284: e320f000 nop {0} ^^^^^^^^^^ 8288: e3a03016 mov r3, #22 828c: e5803000 str r3, [r0] 8290: e3e00000 mvn r0, #0 This in turn is due to a fixup in ARM ld which transforms branch-to-null into a nop. It is better than crashing but still wrong since errno handling is removed. With the patch, errno_location is restored back in test program. 00008274 <__GI_mmap>: 8274: e92d40b0 push {r4, r5, r7, lr} 8278: e59d5014 ldr r5, [sp, #20] 827c: e1b0ca05 lsls ip, r5, #20 8280: 0a000004 beq 8298 <__GI_mmap+0x24> 8284: eb000010 bl 82cc <__errno_location> 8288: e3a03016 mov r3, #22 828c: e5803000 str r3, [r0] Cc: Christian Ruppert <christian.ruppert@abilis.com> CC: Francois Bedard <Francois.Bedard@synopsys.com> Cc: Anton Kolesov <Anton.Kolesov@synopsys.com> Cc: Joern Rennecke <joern.rennecke@embecosm.com> Cc: Jeremy Bennett <jeremy.bennett@embecosm.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Peter Korsgaard <peter@korsgaard.com> Cc: Khem Raj <raj.khem@gmail.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-04-23LT.old: Make __errno_location/__h_errno_location thread safeVineet Gupta
WHY: errno in uClibc is not thread safe HOW: __errno_location and it's sibling __h_errno_location need to be called via PLT - even from within libc. That way when linked with pthread, intra-uClibc callers will also use the thread safe version. This is achieved by removing the GI alias for these functions, ensuring that they get called normally (via PLT) Verified with ARC LT.old and ARM cubieboard2 buildroot (LT.old) NPTL is unaffected by this bug. ------------ History behind this patch --------------------- This is a long standing bug (https://bugs.busybox.net/show_bug.cgi?id=2089) Others have tried to fix it in past (alteast Peter Korsgaard's patch in 2010), but somehow failed to be merged (or were backed out afterwards). http://lists.uclibc.org/pipermail/uclibc/2010-July/044176.html One of the causes could be side effect of atleast one more bug related to pthreads and static link which has now been fixed. http://lists.uclibc.org/pipermail/uclibc/2013-October/047958.html I have solved this w/o looking at other pacthes but would like to give credit to Peter and others for confirming that it makes sense. Cc: Christian Ruppert <christian.ruppert@abilis.com> CC: Francois Bedard <Francois.Bedard@synopsys.com> Cc: Joern Rennecke <joern.rennecke@embecosm.com> Cc: Jeremy Bennett <jeremy.bennett@embecosm.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Peter Korsgaard <peter@korsgaard.com> Cc: Khem Raj <raj.khem@gmail.com> Cc: buildroot@busybox.net Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-04-01Fix warnings in MIPS buildSteve Ellcey
This patch fixes the rest of the set-but-not-used warnings in the MIPS code by using attribute_unused and also fixes some conversion warnings by changing __arch_compare_and_exchange_xxx_[8|16]_int. Assigning __cmp (int type) to __prev (pointer type) generates a warning. Assigning zero to each separately avoids this warning without having to add a cast. Signed-off-by: Steve Ellcey <sellcey@mips.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-04-01xtensa: add missing .literal_position directivesMax Filippov
This addition allows building uClibc with -mtext-section-literals Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-04-01ARC: Make vfork weak in libcVineet Gupta
Anton reported: ------------------->8--------------------- Package iperf cannot be built in Buildroot due to following error: /home/akolesov/env/autobuild/tmp/host/usr/bin/arc-buildroot-linux-uclibc-g++ -Wall -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -pipe -Os --static -o iperf -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -pipe -Os -pthread -DHAVE_CONFIG_H Client.o Extractor.o Launch.o List.o Listener.o Locale.o PerfSocket.o ReportCSV.o ReportDefault.o Reporter.o Server.o Settings.o SocketAddr.o gnu_getopt.o gnu_getopt_long.o main.o service.o sockets.o stdio.o tcp_window_size.o ../compat/libcompat.a /home/akolesov/env/autobuild/tmp/host/usr/arc-buildroot-linux-uclibc/sysroot/usr/lib/libc.a(vfork.os): In function `vfork': (.text+0x0): multiple definition of `vfork' /home/akolesov/env/autobuild/tmp/host/usr/arc-buildroot-linux-uclibc/sysroot/usr/lib/libpthread.a(ptfork.os):ptfork.c:(.text+0xc0): first defined here collect2: error: ld returned 1 exit status ------------------->8--------------------- Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Anton Kolesov <Anton.Kolesov@synopsys.com> Cc: Francois Bedard <Francois.Bedard@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-03-12libc: fix mips N64 pread/pwrite buildSteve Ellcey
Uclibc is not building for MIPS N64 because pread is trying to use the pread/pwrite system calls instead of pread64/pwrite64. This patch fixes the problem and was tested with LFS enabled and disabled. Signed-off-by: Steve Ellcey <sellcey@mips.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-02-15mips: Remove duplicate macro definitionsSteve Ellcey
The INLINE_SYSCALL, INTERNAL_SYSCALL*, and internal_syscall* macros are defined for MIPS in both libc/sysdeps/linux/mips/sysdep.h and libc/sysdeps/linux/mips/bits/syscalls.h. The macros are the same in both cases except that syscalls.h defines internal_syscalls[567] the same for N32 and N64 ABIs and has a different definition for O32. I believe that is correct. The sysdep.h header uses the O32 versions for N32 and has different definitions for N64. I think that is wrong and that N32 and N64 should share the same definition (modulo the type 'long' vs. 'long long' for the arguments. This setup (from sysdep.h) now agrees with what glibc has. I am not positive about which header (sysdep.h vs syscalls.h) is really the right one to have these definitions in but using sysdep.h seems to work for all my builds. Signed-off-by: Steve Ellcey <sellcey@mips.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-02-15libc: Fix sync_file_range.c for MIPS64 N32 ABISteve Ellcey
The special sync_file_range handling is only needed for the O32 ABI (regardless of whether it is on mips32 or mips64). The N32 (and N64) ABI's should both use the standard code. This routine was using the special code for the N32 ABI because that ABI has a word size of 32 bits and that is wrong. This patch fixes it by checking the ABI used instead of checking the word size. Signed-off-by: Steve Ellcey <sellcey@mips.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-02-15libc: silence warning in ftsBernhard Reutner-Fischer
cderrno is dead code, comment it out. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-02-02libc: mips: Fix setjmp/longjmp for MIPS64 N64 ABIWaldemar Brodkorb
When booting a Linux system with qemu-system-mips64 the execution of $(pwd) in the ash shell triggers a segmentation fault. Ash uses setjmp/longjmp for exception handling. After looking at the glibc implementation, I found some differences, with this patch tries to resolve. Now the system boots up fine and no segmentation faults occur. The global pointer should be restored and the types for the register values should be wide enough. See: http://www.cygwin.com/ml/libc-alpha/2003-03/msg00363.html Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-02-02mips: silence 'set but not used' warningsSteve Ellcey
This patch uses 'attribute_unused' to clean up a number of warnings messages that are generated when doing a MIPS build. All of the changes are in MIPS specific files and there are no code changes other then adding the unused attribute where needed. Signed-off-by: Steve Ellcey <sellcey@mips.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-02-02libc: mips: Fix non-LFS buildSteve Ellcey
The MIPS build is failing when UCLIBC_HAS_LFS is set to "n" because posix_fadvise64.c is included in the build when it should not be. Signed-off-by: Steve Ellcey <sellcey@mips.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-24mips: silence _ABI* undef warningsBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-22powerpc: syscall support up to 6 argumentsBernhard Reutner-Fischer
As reported by Kristof Provost. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-22vfork: fix clone based versionStefan Kristiansson
The clone based version was introduced by commit 58570fc8e1fd601f15be5758ab95013d56771804 vfork: Use clone if arch does not have the vfork syscall but the code was made unreachable by the previous commit 0a043c30ee71245dfe7c9d82d654312c5e1f6127 vfork: make all archs consistent that adds a guard which require either __NR_vfork or __NR_fork to be set. Neither will be set on an arch that would need to use the clone based version. The double declaration of vfork was also introduced by the merge of the two above mentioned patches. The missing ; was present in the original patch. CC: Markos Chandras <markos.chandras@imgtec.com> CC: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> CC: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-22libc: fix MIPS N64 forkWaldemar Brodkorb
fork() is broken for MIPS64 N64 ABI. You can check it with a simple C program statically linked with qemu-mips64 user emulation. Internally fork() is using the clone system call (at least with NPTL) with 5 arguments. See ./libpthread/nptl/sysdeps/unix/sysv/linux/i386/fork.c. The calling conventions for MIPS N32 and N64 allow to use up to 8 registers for that. See http://en.wikipedia.org/wiki/Calling_convention#MIPS This is correctly implemented in libc/sysdeps/linux/mips/bits/syscalls.h, but not in libc/sysdeps/linux/mips/sysdep.h. fork.c uses the later one. It seems that fork() works fine for MIPS64 N32 with just using the stack like with the O32 case. There is a user of INLINE_SYSCALL with 7 arguments in libc/sysdeps/linux/common/sync_file_range.c for MIPS64 N32, so I decided to only use the macros for the MIPS64 N64 case. With this patch my uClibc based Linux system boots up fine in qemu-system-mips64. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-15libc: add guard for arm thumb2 asmBernhard Reutner-Fischer
Fixes gen_lowlevelrobustlock on thumb2 Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-08ARC: opencode ENTRY/END macros in crt1Vineet Gupta
crt1.S -> include sysdep.h -> include sysnum.h In multistage gcc build, Buildroot happens to build crt1.S before sysnum.h is generated. So break the above include chain and opencode the ENTRY/END macros. Reported-by: Anton Kolesov <akolesov@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-08xtensa: use common ptrace.hBaruch Siach
Adds support for architecture independent actions. Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-08libc: posix_fadvise: restore implementation for xtensaBaruch Siach
Commit ee84b8b400 (linux: posix_fadvise: use new SYSCALL_ALIGN_64BIT) removed posix_fadvise implementation for xtensa, since xtensa does not define __NR_fadvise64. Reuse the ARM support code to restore xtensa support. This commit is based Mike Frysinger's suggested patch. Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-08siginfo.h: __SIGEV_PAD_SIZE takes __WORDSIZE into accountVicente Olivert Riera
Make __SIGEV_PAD_SIZE to take __WORDSIZE into account for alpha, mips and ia64 arches. Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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