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2016-06-12Fix return value of fwrite when a 'hard' error occursJan Vangorp
When a 'hard' error occurs, fwrite reports that all data was written or buffered even if that is not the case. It should report how much data was actually written and buffered. Signed-off-by: Jan Vangorp <jan.vangorp_ext@softathome.com>
2016-06-12Fix infinite loop when fopencookie custom write returns 0 on errorJan Vangorp
The man page for fopencookie prescribes that custom write functions should return 0 on error (and should definitely not return a negative value) [1]. However, the uClibc implementation expects a negative return value in case of an error (libc/stdio/_WRITE.c). If the write function returns 0 on error, we drop into an infinite loop if the error persists. This patch wraps the user supplied write function such that a 0 return value is converted to -1. errno is first set to EAGAIN such that if the custom write function does not set errno in case of error, this is treated as a "soft" error. Custom write functions that cater towards uClibc and _do_ return a negative value are not affected. If no custom write function is supplied, set errno to EINVAL such that this condition is treated as a "hard" error. Previously the behaviour depended on whether the last error before the write happened to be a "hard" or a "soft" error. [1] http://git.kernel.org/cgit/docs/man-pages/man-pages.git/tree/man3/fopencookie.3?id=6c0d0ef0c7a9c4bcf805c6f9e9bc1ef1c3865ea0#n164 Signed-off-by: Jan Vangorp <jan.vangorp_ext@softathome.com>
2016-06-07ssp: remove SSP legacy codeWaldemar Brodkorb
Nobody should use gcc 3.3 nowadays.
2016-06-07microblaze: remove unused dead codeWaldemar Brodkorb
These files are not used, no regression found while running the testsuite.
2016-06-03ppc: cleanup unsupported ppc64 codeWaldemar Brodkorb
Remove ppc64 bits and bytes, as we don't support ppc64 and it makes the code more readable without the dead code.
2016-06-01remove MJN only debug messagesWaldemar Brodkorb
2016-05-29mips: allow to disable prefetch support in memcpy/memsetWaldemar Brodkorb
There exist some problem with the new memcpy/memset functions imported from GNU libc/newlib. If you have any problem with the new MIPS optimized assembly try to disable prefetching support. Thanks to Rene Nielsen and Matthew Fortune analyzing the problem so far.
2016-05-28sparc: remove unused 64 bit support codeWaldemar Brodkorb
2016-05-24microblaze: fix setjmp/longjmpWaldemar Brodkorb
Sync mostly with GNU libc implementation of setjmp/longjmp. Just generate PIC compatible code, so no difference for static builds are made. Add sysdep.h with some handy assembly macros used inside setjmp.S/__longjmp.S. This unbreaks dynamic linker support, first test suite run only shows 10 errors, which doesn't look so bad.
2016-05-18remove linuxthreads.new, rename linuxthreads.oldWaldemar Brodkorb
Linuxthreads.new isn't really useful with the existence of NPTL/TLS for well supported architectures. There is no reason to use LT.new for ARM/MIPS or other architectures supporting NPTL/TLS. It is not available for noMMU architectures like Blackfin or FR-V. To simplify the live of the few uClibc-ng developers, LT.new is removed and LT.old is renamed to LT. LINUXTHREADS_OLD -> UCLIBC_HAS_LINUXTHREADS
2016-04-26sparc: add deprecated context switching functionsWaldemar Brodkorb
Ported over from glibc mostly without changes. Lightly tested with mongrel2 in qemu-system-sparc.
2016-04-17remove unused defines for lm32/or1kWaldemar Brodkorb
2016-04-15replace FSF addresses with URLsNikola Forró
License notices in most of the source files refer to an outdated FSF address. Replace it with URL, like in the rest of the source files.Signed-off-by: Nikola Forró <nforro@redhat.com>
2016-04-11simplify getpagesize, do not depend on kernel macrosWaldemar Brodkorb
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
2016-04-03Provide an alias to _obstack_freeAlexey Neyman
GDB 7.11 does not build if compiled against uclibc-ng (1.0.12 was used, but the problematic code exists in 1.0.13 as well). The reason is that GDB release includes its own obstack implementation, but elides the code if <gnu-versions.h> declares a compatible obstack implementation in libc. uclibc-ng does claim compatible obstack interface (GDB expects version 2, but accepts version 1 if sizeof(int) == sizeof(size_t)), however, uclibc-ng does not provide the _obstack_free symbol that is a part of the interface (glibc does provide this symbol). This later causes a link failure. The attached patch makes uclibc-ng enables an alias _obstack_free -> obstack_free. Signed-off-by: Alexey Neyman <stilor@att.net>
2016-03-31bits/byteswap-common.h: import recent headers from glibcAnthony G. Basile
On systems where uClibc doesn't provide an arch specific byteswap.h, we fall back on bits/byteswap-common.h. However, there is a bug in this header in the __bswap_constant_64(x) macro. If, for example, a double is passed, we get 'invalid operands to binary &' in which we mismatch a 'double' and 'long long unsigned int'. The newer glibc headers fix this and so we import them. Also, since the inclusion of byteswap.h is not appropriate for assembly code, we guard a portion of endian.h which uses byteswap.h from inclusion in any assembly. This is needed, for example, for f2fs-tools 1.6.0 on 32-bit big endian PowerPC. Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
2016-03-31arm: simplify handling of Thumb related optionsThomas Petazzoni
Currently, the Thumb support on ARM has three related Config.in options, which are not trivial for users to understand, and are in fact not needed: - The USE_BX option is not needed: knowing whether BX is available or not is easy. If you have an ARM > v4 or ARMv4T, then BX is available, otherwise it's not. This is the logic used in glibc. - The USE_LDREXSTREX option is not needed: whenever Thumb2 is available, ldrex/strex are available, so we can simply rely on __thumb2__ to determine whether ldrex/strex should be used, without requiring a Config.in option. - Once USE_BX and USE_LDREXSTREX are removed, the only thing left that COMPILE_IN_THUMB does is to set -mthumb. This makes the option unnecessary, as on ARM at least, the user is already supposed to pass -march=<foo> or other compiler options tuning the library for a specific ARM variant. There is no reason to do otherwise for Thumb, which allows to get rid of the COMPILE_IN_THUMB option. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-03-31xtensa: fix __sigsetjmp call12 caseMax Filippov
Register window saving loop in __sigsetjmp incorrectly calculates offset in the jmp_buf in case it was called with call12. The bug was introduced in commit f4b1b7ade7971141 "xtensa: fix setjmp that didn't save all registers correctly". Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-03-10getaddrinfo: correct AI_V4MAPPED handlingPeter Korsgaard
As recently reported on the Buildroot list: http://lists.busybox.net/pipermail/buildroot/2016-March/155325.html DNS lookups with Node.js currently fails on uClibc-ng. The reason for this is the way AI_V4MAPPED is handled. According to POSIX, AI_V4MAPPED should be ignored unless ai_family is AF_INET6: http://pubs.opengroup.org/onlinepubs/9699919799/functions/freeaddrinfo.html If the AI_V4MAPPED flag is specified along with an ai_family of AF_INET6, then getaddrinfo() shall return IPv4-mapped IPv6 addresses on finding no matching IPv6 addresses (ai_addrlen shall be 16). The AI_V4MAPPED flag shall be ignored unless ai_family equals AF_INET6. uClibc-ng was also handling AI_V4MAPPED for AF_UNSPEC, fix that. Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2016-03-10DNS: Don't apply search domains to PTR lookupsTim Hockin
This lessens the load on upstream DNS servers (and it was just nonsensical). Signed-off-by: Tim Hockin <thockin@google.com>
2016-03-10DNS: don't count search-path miss as a retryTim Hockin
Currently a miss on a search-path entry is counted as a retry. This means that users with more than (num_nameservers * retries) entries in their search path list fail before trying all search paths. Concretely, a single nameserver with 4 search paths will never try the 4th search because the default retry is 3. The code doesn't currently retry a given nameserver in case of an error, so retries is sort of meaningless (though there are some comments indicating it might come). This change only treats total failure of a nameserver (try next server) as a retry. Signed-off-by: Tim Hockin <thockin@google.com>
2016-03-10ia64: sync with glibc headersWaldemar Brodkorb
2016-02-29arm: fix __JMP_BUF_SP definitionMax Filippov
__JMP_BUF_SP is the index of a stack pointer slot in the __jmp_buf. According to ARM __sigsetjmp code it does not depend on configuration parameter __UCLIBC_HAS_FPU__. Make its definition unconditional. __JMP_BUF_SP is used in the unwind_stop through the _JMPBUF_CFA_UNWINDS_ADJ macro, this change fixes cleanup routines call on thread cancellation in configurations with hard FP. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-02-24xtensa: fix stack unwinding over __default_sa_restorerMax Filippov
For some xtensa cores generated code gets arranged so that __default_sa_restorer immediately follows preceding function. E.g.: 40a1b: c03340 sub a3, a3, a4 40a1e: f01d retw.n 00040a20 <__default_sa_restorer>: 40a20: e1a022 movi a2, 225 40a23: 005000 syscall ... Contents of the .eh_frame section: ... 000007f4 00000014 000007f8 FDE cie=00000000 pc=0004076c..00040a20 DW_CFA_advance_loc4: 3 to 0004076f DW_CFA_def_cfa_offset: 48 Due to the way xtensa libgcc uw_frame_state_for calls _Unwind_Find_FDE for non-signal frames, FDE for the previous function is found during thread cancellation signal stack unwinding in that case. Signal stack frame is not recognized and is not unwound properly, breaking cleanup routines calling for cancelled thread. Insert padding before the __default_sa_restorer so that no FDE is found for it, MD_FALLBACK_FRAME_STATE_FOR is called by uw_frame_state_for and the frame is correctly recognized as signal frame. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-02-24Replace /etc/resolv.conf with _PATH_RESCONF to allow portability of the code ↵Ubaldo Porcheddu
on system where resolv.conf is not in /etc . Signed-off-by: Ubaldo Porcheddu <ubaldo@eja.it>
2016-02-24Replaced any occurence of /bin/sh with _PATH_BSHELL to allow easier ↵Ubaldo Porcheddu
portability on system with default shell on a different directory, like for instance on android. Signed-off-by: Ubaldo Porcheddu <ubaldo@eja.it>
2016-02-07frv: resurrect port somehow, totally untestedWaldemar Brodkorb
The FR-V port is really broken, and I have no emulator or hardware for this platform. I tried to get some hardware from RedHat, who made the FR-V port initially. Unfortunately Fujitsi didn't agreed to sent me some of their unused spare hardware lying @RedHat. As I invested some time to get stuff compiled, I decided to add the code and may be anytime later I can gain access to some emulator or hardware. GDB simulator for FR-V doesn't support booting Linux AFAIK.
2016-02-03mips: fix build if threads are disabledWaldemar Brodkorb
Reported-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
2016-01-31mips: fix clashing symbolsWaldemar Brodkorb
ISC bind9 uses ptrsize, better use something else. Reported-By: Gustavo Zacarias <gustavo@zacarias.com.ar> Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-01-31mips64: fix memcpy, patch from glibcWaldemar Brodkorb
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-01-31Provide __adjtimex() alias, like glibc.Leonid Lisovskiy
Althought recent versions of sofware don't require it, old ntpd wants - see http://bugs.ntp.org/show_bug.cgi?id=769 Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com> Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-01-31Make sure to always terminate decoded stringWaldemar Brodkorb
Write a terminating '\0' to dest when the first byte of the encoded data is 0. This corner case was previously missed. Signed-off-by: Daniel Fahlgren <daniel@fahlgren.se> Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-01-31Do not follow compressed items forever.Waldemar Brodkorb
It is possible to get stuck in an infinite loop when receiving a specially crafted DNS reply. Exit the loop after a number of iteration and consider the packet invalid. Signed-off-by: Daniel Fahlgren <daniel@fahlgren.se> Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-01-30add exp10() from glibcWaldemar Brodkorb
Some software make use of exp10, so add it. Basic testing with LTP. Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
2016-01-27nios2: allow to build toolchainWaldemar Brodkorb
At least allow to compile a toolchain targeting nios2 without MMU.
2016-01-25hppa: unbreak toolchain buildingWaldemar Brodkorb
At least allow to build a toolchain for hppa. Sync some headers with glibc.
2016-01-12Suppress warning "_GNU_SOURCE" redefinedWaldemar Brodkorb
libc/sysdeps/linux/common/euidaccess.c:1:1: warning: "_GNU_SOURCE" redefined In file included from <command-line>:0: ./include/libc-symbols.h:52:1: warning: this is the location of the previous definition Signed-Off-By: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-10h8300: O_DIRECT and O_DIRECTORY swapping.Yoshinori Sato
Different define of latest kernel. kernel define is #define O_DIRECT 00040000 /* direct disk access hint */ #define O_DIRECTORY 00200000 /* must be a directory */ Yoshinori Sato <ysato@users.sourceforge.jp>
2016-01-10order of special checks mattersWaldemar Brodkorb
The order of special checks seems critical for some applications. Xorg 1.18.0 fails to start with XNFreallocarray error. Took me some time to run with MALLOC_DEBUG=2 to find out. MALLOC_STANDARD is not affected.
2016-01-10Add implementation for copysignl for i386Waldemar Brodkorb
Patch from OpenWrt. Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-10Provide XTI __t_scalar_t types, like glibcWaldemar Brodkorb
Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-06Remove alias.Yoshinori Sato
open_cancel and open2_cancel have diffrent argument on open. So can't alias this functions. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2016-01-06openat argument fix.Yoshinori Sato
If argument passing to register case (ex. -mregparam=3). This case set all parameters set to register from caller. But callee refer to stack. So can't get parameter. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2016-01-06pthread_atfork handlers not removed during dlcloseWaldemar Brodkorb
Invoke pthread_atfork handler cleanup when removing the associated DSO... If a program loads a DSO (dlopen) that sets up a pthread_atfork handler(s), and then subsequently closes the DSO, the handler(s) are left in place. If fork() is subsequently called, the handlers are invoked even though the DSO has been removed causing crashes or unpredictable code execution. This is because the code in __cxa_finalize(atexit.c)to invoke the unregister_atfork() routine is ifdef'd out with the comment that it hasn't been "looked into this yet...". Refs.: http://bugs.busybox.net/show_bug.cgi?id=8211 http://sourceware.org/bugzilla/show_bug.cgi?id=13502 Add test-case, enable cleanup for NPTL only. Signed-off-by: John Ata <john.ata@baesystems.com> Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-06__ARCH_HAS_DEPRECATED_SYSCALLS__ case fix. getdents is deprecated.Yoshinori Sato
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2016-01-06h8300: vfork flags update.Yoshinori Sato
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2016-01-06extra/Configs/Config.in: add syncfs() to Linux-specific functionsAnthony G. Basile
syncfs() was recently added (commit dfa593d4d). But man sync(2) specifies that syncfs() is Linux-specific. This was overlooked in the original commit so we add it to the set of Linux-specific functions supported by uClibc. Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
2016-01-03libc: getpass,getutent: allocate buffer dynamicallyWaldemar Brodkorb
Saves 0.6k bss with default buffer size(256). text data bss dec hex filename - 1172 8 408 1588 634 libc/misc/utmp/utent.os - 429 0 256 685 2ad libc/unistd/getpass.os + 1208 8 28 1244 4dc libc/misc/utmp/utent.os + 471 0 4 475 1db libc/unistd/getpass.os ================================================================ +78 -632 Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-02libc/inet: Unbreak gethostent()Waldemar Brodkorb
Although gethostent() is obsoleted, there is no reason to keep it broken. Fix two problems: * commit f65e66078b "resolver: switch to config parser" leave an extra break statement in case of GETHOSTENT in __read_etc_hosts_r. In result, output buffer wasn't initialized at all. * gethostent static buffer has insufficient size to store aliases, so __read_etc_hosts_r always returns ERANGE. Restore ALIAS_DIM define. Add test-case. Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
2016-01-02Use dynamic buffers for gethostent/gethostbyname/gethostbyaddrWaldemar Brodkorb
Save ~1k static space (.bss) text data bss dec hex filename - 68 0 126 194 c2 libc/inet/gethostent.os - 79 0 460 539 21b libc/inet/gethostbyname2.os - 83 0 460 543 21f libc/inet/gethostbyaddr.os + 98 0 24 122 7a libc/inet/gethostent.os + 110 0 24 134 86 libc/inet/gethostbyname2.os + 113 0 24 137 89 libc/inet/gethostbyaddr.os ================================================================== +91 -974 Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
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