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2013-12-20ldso: ARC whitespace tweaksVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20inet: Fix threaded res_initKenneth Soerensen
In a multi-threaded application where res_init() was called either directly or implicitly, getaddrinfo() and others failed to add the DNS search domain to hostnames. This problem made it not possible to look up a hostname without its domain appended. The problem is caused by res_sync_func() overwriting the configuration read by __open_nameservers() immediately after it is read. The suggested solutin is to disable res_sync_func() while reading name server configuration in res_init(). Signed-off-by: Kenneth Soerensen <kenneth.sorensen@spectralink.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20librt: fix mq_timed{send,receive} return instructionsBaruch Siach
Not all architectures use 'ret' as function return instruction. For example, xtensa usually uses 'retw'. Use the ret_ERRVAL arch dependant macro instead. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20libc/sysdeps: commonize ret_ERRVALBaruch Siach
* Add a common ret_ERRVAL definition * Remove ret_ERRVAL from architectures using the common 'ret' * Add 'undef' to architectures that need a different return instruction * Add '#include <common/sysdep.h>' to cris and ia64 that were missing it Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20ARC defconfigsVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20ARC port to uClibcVineet Gupta
For this port, I would like to give due credit to: - Folks from Codito technologies (Sameer, Amit, Kanika, Ramana,...) who did the very first port - ARC UK from 2007-2009 (Joern, Irfan, Khurram, Phil... - Late Brendan Kehoe (may he RIP) Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20string: Add ARC supportJoern Rennecke
Signed-off-by: Joern Rennecke <joern.rennecke@embecosm.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20LT.old: Add ARC supportVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20ldso: Add ARC supportVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20ldd: Add ARC supportVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20Fix for SIGBUS error on MIPS64 with N64 ABIWaldemar Brodkorb
When accessing errno, a per thread variable, from _stdio_init a SIGBUS error happens. This change fixes the wrong relocation and debug output. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20NPTL: fork: relief register pressure on arm thumb1Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20ldso: use unlikely macroBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20buildsys: Fix error on config clean in realcleanBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20buildsys: add TODO reminderBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-19buildsys: update unifdefBernhard Reutner-Fischer
sync up to 55501a61dd257e941d53f175350ee52fc6ff2866 (2.9 + refactor keyword and symbol matching) Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-13buildsys: check LDFLAGS through driverBernhard Reutner-Fischer
We run the linker through the compiler-driver, so we have to check linker flags through the driver, too. Otherwise we might check $LD's flags while we will run $CC's linker and those might be different beasts. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-12ldso: silence warnings in debug codeBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-12Make res_init() thread safe.Kenneth Soerensen
res_init() was not atomic, which could give undesired behaviour. Now res_init() is completely locked under one lock and the locking is removed from __res_vinit(). Signed-off-by: Kenneth Soerensen <kenneth.sorensen@spectralink.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-12Fix threaded use of res_ functions.Sørensen, Kenneth
Commit aab4df0fb51660300559f5f29290709db2f7bfee says that the line with after res_init() function. Commit 7f74de5d4d6d10baafab4b37bb3d472f5c5f0e8c moves the res_init() function below the line with #undef _res. This commit moves res_init() back above #undef _res. Signed-off-by: Kenneth Soerensen <kenneth.sorensen@spectralink.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-11buildsys: document savedefconfig in helpBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-11buildsys: on realclean, rm include/{config,generated}Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06buildsys: rm PT startfiles on realcleanBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06time.c: make ll_tzname* static againBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06prctl: fix system call wrapperBaruch Siach
The argument names used in the prctl wrapper collide with the internal variable names in syscall wrapper macros on some architecture. This currently breaks xtensa. grep for '\b_a[0-9]' indicates that metag and microblaze might also be affected. Prefix argument names with '_prctl' to avoid collision. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06test: tls: fix build with newer binutilsBaruch Siach
Fix the following build failures: ld: tst-tls10.o: undefined reference to symbol 'f2a' ld: tst-tls12.o: undefined reference to symbol 'a1' binutils ld defaults to --no-copy-dt-needed-entries since version 2.22. Add library dependencies explicitly. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06ldso: remove duplicate function declarationsBaruch Siach
Commit e3dec33ba (powerpc: Add TLS and NPTL support) introduced a duplicate of _dl_add_to_slotinfo and _dl_initial_error_catch_tsd declarations. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06test: inet: fix build when res_close support is disabledBaruch Siach
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06libdl: fix unused variable warningBaruch Siach
The following warning introduced with commit 231e4a9b4 (libdl: fix dlopen implementation from statically linked application): ldso/libdl/libdl.c: In function 'do_dlopen': ldso/libdl/libdl.c:311:23: warning: unused variable 'ls' [-Wunused-variable] Cc: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06misc: fix nm 'No such file' errorBaruch Siach
Reset CSRC-y to prevent pollution from libc/misc/glob/Makefile.in, and fix the following error messages when UCLIBC_HAS_OBSTACK is disabled: nm: 'libc/misc/gnu/glob-susv3.os': No such file nm: 'libc/misc/gnu/glob64-susv3.os': No such file Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06ldso: fix unused variable warningBaruch Siach
This fixes the following warning when SUPPORT_LD_DEBUG_EARLY is not enabled: ldso/ldso/ldso.c: In function '_dl_get_ready_to_run': ldso/ldso/ldso.c:754:16: warning: unused variable 'tmp' [-Wunused-variable] This was introduced with commit 94cc6edb (ldso: Rework global scope handling and symbol lookup mechanism). Cc: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06add posix_fadvise() for armKhem Raj
arm call to posix_fadvise simply calls posix_fadvise64 Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06libc/metag: add __kernel_long_t and __kernel_ulong_tMarkos Chandras
Add __kernel_long_t and __kernel_ulong_t types for Meta. The rest of the architectures have been fixed in: 6a76edddaa62ff06f178143b582167734cb55c18 "libc/sysdeps: add __kernel_long and __kernel_ulong" Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06pull kconfig from linux-3.11Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-06Fix weak/strong attribute of __errno_location and it's __GI aliasVineet Gupta
A simple statically linked hello world program was segfaulting for ARC in linuxthreads.old configuration (although the root casue applies cross-arch for NPTL as well as linuxthreads.old as described) The crash was due to branch to NULL in _stdio_init 0001026c <_stdio_init>: 1026c: push_s blink 1026e: st.a r13,[sp,-8] 10272: bl.d 0 --> supposed call to __errno_location The call was NOT getting patched to libc internal only alias __GI___errno_location, because it was weak while it's exported cousin, __errno_location was strong/normal. arc-linux-uclibc-nm libc/misc/internals/__errno_location.os 00000000 W __GI___errno_location 00000000 T __errno_location This is exactly opposite to what is expected. Quoting Peter S. Mazinger, commit 87936cd013041 "errno and *_init cleanup" | The rule adopted: | for enabled threads we make in libc the __GI_x() variants strong, x() weak | and (should) provide another strong x() in libpthread. | If threads are disabled, even the __GI_x() variants are weak. With the fix, we see the right settings as below 00000000 T __GI___errno_location 00000000 W __errno_location Note that problem won't show up in a static busybox build as it references errno and that seems to elide the issue. I can confirm the same/more issues with latest ARM buildroot builds w/o my fix. (1). linuxthreads.old (broken just like ARC) arm-linux-nm uclibc-snapshot/libc/misc/internals/__errno_location.os 00000000 W __GI___errno_location 00000000 T __errno_location But presumably the issue there is NOT catestrophic because ARM linker is likely smarter and patches a NOP instead of NULL branch. 00008388 <_stdio_init>: 8388: e92d4038 push {r3, r4, r5, lr} 838c: e320f000 nop {0} (2) NPTL build (exported version is not weak) 00000000 T __GI___errno_location 00000000 T __errno_location This causes a static link with libpthread and test program referencing errno to fail to link. #include <errno.h> int main(void) { printf("%d\n", errno); } arm-linux-gcc -static -pthread -o tst tst.o arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libc.a(__errno_location.os): In function `__errno_location': __errno_location.c:(.text+0x0): multiple definition of `__errno_location' arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libpthread.a (errno_location.os):errno_location.c:(.text+0x0): first defined here Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-04xtensa: fix atomic_decrement_if_positive() return valueBaruch Siach
atomic_decrement_if_positive() returns the old value of &mem, not the (sometimes undefined) value of __tmp. Fixes the uClibc nptl/tst-sem3 test. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-11-04xtensa: fix layout of struct sigcontext to match the kernelBaruch Siach
Current code breaks libgcc unwind. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-10-07pmap_getport: use TCP to talk to portmapper if protocol == IPPROTO_TCP.Denys Vlasenko
Before the patch, the query itself was sent via UDP (the query contained correct protocol ID). The fix is taken from glibc. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-02libc: add isfdtype()Anthony G. Basile
isfdtype(int fd, int fdtype) check whether a file descriptor fd is of type fdtype, where the types are defined in stat(2). It is supported in glibc and BSD, and used by utilities such as acpid. Signed-off-by: Anthony G. Basile <blueness@gentoo.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-08-02malloc: enable assert() when malloc debuggingBaruch Siach
UCLIBC_MALLOC_DEBUGGING is useless without assert(). Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-26libc/sysdeps: Fix common-generic stat.h for BE part 2Mischa Jonker
Previous patch only fixed the build. This patch fixes the behavior at run-time as well. It fixes "Value too large for defined data type" messages caused by fstat syscall wrapper returning -EOVERFLOW. Signed-off-by: Mischa Jonker <Mischa.Jonker@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-26Rules.mak: Fix setting arch native bitGustavo Zacarias
fix breakage from 603af30d Removing the whitespace from findstring for 64 bit architectures has bad consequences since powerpc would be a match in powerpc64 and sparc would also be a match in sparc64. That doesn't make them 64 bits in reality causing general breakage. Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> Reviewed-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-19test commitBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-19inet: fix unsafe access to _res.options in res_mkquery()Vanya Sergeev
res_mkquery() takes out __resolv_lock to copy _res.options to function local _res_options on line 4204, but later unsafely accesses _res.options without a lock, instead of its local copy _res_options, on line 4221. Looks like a period / underscore typo. Signed-off-by: Vanya Sergeev <vsergeev@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-19Rules.mak: MIPS64: Select correct interpreterMarkos Chandras
gcc (eg 4.7.3) hardcodes the MIPS64 interpreters like this: (see gcc/config/linux.h and gcc/config/mips/linux64.h) o32: UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0" n32: UCLIBC_DYNAMIC_LINKERN32 "/lib32/ld-uClibc.so.0" n64: UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0" The existing check for MIPS64 in uClibc is wrong because it does not respect the selected ABI We fix this by explicitely checking the selected ABI instead of the selected MIPS variant. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: Anthony G. Basile <blueness@gentoo.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-18bits/waitstatus.h: correctly interpret status 0x007f on MIPSDenys Vlasenko
On other architectures exit status of 0x007f is not possible, they don't have signal 127. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-07-04C6X: Remove DSBT in favour of FDPICLuis Machado
Sync up with the changes from C6X entering the kernel. Signed-off-by: Luis Machado <lgustavo@codesourcery.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-04libc/sysdeps/linux/common/sendfile.c: fix sendfile64 visibilityAnthony G. Basile
Commit a83ea57a50 introduces code for falling back on sendfile64 when the sendfile syscall is not available. However, as written, that code leads to sendfile64 being globally hidden in situations where __NR_sendfile and __USE_LARGEFILE64 are defined. In this case, the flow executes strong_alias_untyped(sendfile,sendfile64) in libc/sysdeps/linux/common/sendfile.c and libc_hidden_proto(sendfile64) in include/sys/sendfile.h, but nowhere does it do libc_hidden_def(sendfile64). This patch adds the needed libc_hidden_def(sendfile64). This breaks, for example, xfsprogs on x86_64. Reported by mardok4 in IRC. Signed-off-by: Anthony G. Basile <blueness@gentoo.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-04insque: fix segfault on (prev == NULL)Bartosz Golaszewski
Since version 2.5 glibc allows prev to be a NULL pointer in insque, whereas uClibc segfaults in this case. This fixes the issue and makes insque initialize q_forw and q_back with NULLs if prev == NULL. Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-04libpthread: pthread_exit in static app. segfaultsFilippo ARCIDIACONO
Static applications that call pthread_exit on the main thread segfault. This is because after a thread terminates __uClibc_main decrements __nptl_nthreads which is only defined in pthread_create. Therefore the right solution is to add a requirement to pthread_create from pthread_exit. This patch has been backported from glibc tree: http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=e1f0b2cfa14b058ab033431b70428ccda8ec6ed0 For further detail see also glibc bug at: http://sourceware.org/bugzilla/show_bug.cgi?id=12310 Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Cc: Vladimir Nikulichev <v.nikulichev@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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