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2012-06-13Update C6X supportMark Salter
This patch updates the C6X support to work with latest uClibc code and uses reworked DSBT support to allow using kernel FDPIC loader. Signed-off-by: Mark Salter <msalter@redhat.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-10eventfd: Implement eventfd2 and fix eventfdKhem Raj
eventfd: evntfd assumes to take two arguments instead it should be one evntfd expects two therefore implement both syscalls with correct parameters Thanks Eugene Rudoy for reporting it and also providing the patch Signed-off-by: Khem Raj <raj.khem@gmail.com>
2012-06-06MIPS: Use $a0 instead of $v0 for __syscall_error() argumentKevin Cernekee
$a0 is saved across _dl_runtime_resolve(); $v0 is not. Unfortunately, __syscall_error() uses $v0 for its argument, not $a0 as is the MIPS ABI standard. This means that if lazy binding was used for __syscall_error(), the errno value in $v0 could get corrupted. The problem can be easily seen in testcases where syscalls in librt fail; when librt tries to call __syscall_error() in libc, the argument gets lost and errno gets set to a bogus value: # ./tst-mqueue1 ; echo $? mq_receive on O_WRONLY mqd_t did not fail with EBADF: Unknown error 2004684208 1 # ./tst-mqueue2 ; echo $? mq_timedreceive with too small msg_len did not fail with EMSGSIZE: Unknown error 1997360560 1 # ./tst-mqueue4 ; echo $? mq_timedsend did not fail with ETIMEDOUT: Unknown error 2008747440 1 When _dl_runtime_resolve() was taken out of the equation, the same test cases passed: # LD_BIND_NOW=y ./tst-mqueue1 ; echo $? 0 # LD_BIND_NOW=y ./tst-mqueue2 ; echo $? 0 # LD_BIND_NOW=y ./tst-mqueue4 ; echo $? 0 Changing __syscall_error() to look at $a0 instead of $v0 fixed the problem. (Note that there is also a "__syscall_error.c" file which presumably uses the standard C calling conventions, but I do not think it is used on MIPS.) Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-06MIPS: Convert __syscall_error() callers to use $a0 for argumentKevin Cernekee
Some callers passed the first argument in $v0, while others used $a0. Change the callers to use $a0 consistently. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-05-30pread/pwrite: drop fallback funcsMike Frysinger
Linux has provided these functions since the 2.1.x era, so no need to keep these around. We'd rather find out when things are missing (and fix that) than fall back to the unsafe hacks. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-05-30pread/pwrite: handle renamed syscalls in common/ppc/xtensa codeMike Frysinger
Some arches got this fix, but many did not. So copy the ifdef logic to the ones that missed it to fix behavior in linux-2.6+. URL: https://bugs.busybox.net/show_bug.cgi?id=5258 Reported-by: David Laight <david.laight@aculab.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-05-21mmap()->sys_mmap2: do unsigned shift of offsetJames Hogan
Fix the implementation of mmap based on the mmap2 system call, to construct pgoffset from offset with an unsigned shift rather than a signed (off_t) shift. The mmap2 test in the testsuite catches this case by mmap'ing with a large offset (with the sign bit set). The signed shift repeats the sign bit making the page shift way out of range. This is already fixed similarly in mmap64(). Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-28epoll.h: sync with glibcMike Frysinger
Since glibc has split out arch-specific stuff to bits/epoll.h, we can pull that sanity back into our tree and drop the arch ifdefs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-26llseek: support __NR_llseek syscallMark Salter
Older kernels use __NR__llseek for a 64-bit lseek syscall. Newer kernels use __NR_llseek. This patch fixes the implementation of lseek64 to use the __NR_llseek syscall if it exists. Signed-off-by: Mark Salter <msalter@redhat.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-26getpgrp: fix fallback handlingMark Salter
The test for generating a stub for getpgrp was wrong and would result in duplicate symbols when building without __NR_getpgrp, but with __NR_getpgid and __NR_getpid. A closer look at the getpgrp implementation using getpgid showed that getpid was being called to pass the current pid to getpgid. This is unnecessary because passing 0 to getpgid returns the pgid of the current process. This patch cleans up the getpgrp implementation and the stub test. Signed-off-by: Mark Salter <msalter@redhat.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-26arm: use PATH_MEM in ioperm()Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-04-26mmap64: Use correct type for offset parameterMike Frysinger
Some arches check the size in INLINE_SYSCALL() and barf if it's too big (i.e. a 64bit value getting truncated to 32bit). Satisfy error-check on ppc32. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-25atomic.h: handle new mips R10K errataBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-04-11mmap64: use INLINE_SYSCALL() helperMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-11mmap64: include stdint.h for uint64_tMike Frysinger
Some targets include this implicitly, but pull it in explicitly for those which don't to fix building for them. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-10mmap64: always use unsigned 64bit offsetsMike Frysinger
The current code will sometimes cast the offset to an unsigned long. On 32bit systems, that doesn't make much sense since we always know that the off64_t type is 64bits. So drop the ifdef logic, cast it to an unsigned 64bit value, and then do the shift. If the system is 32bits, and the address is still too large, then there's really nothing we could do about it anyways, so the extra ifdef logic wasn't helping. URL: https://bugs.busybox.net/show_bug.cgi?id=3853 Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-08alpha: trim crt code to fix build errorsMike Frysinger
Otherwise we get: /tmp/cc14nHjG.s: Assembler messages: /tmp/cc14nHjG.s: Error: .size expression for _init does not evaluate to a constant /tmp/cc14nHjG.s: Error: .size expression for _fini does not evaluate to a constant Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-08signalfd.h: Use new "bits/" scheme for arch-specific flagsKevin Cernekee
glibc has split off the arch-specific flag definitions (like SFD_NONBLOCK) into <arch>/bits/signalfd.h, so that there are no longer multiple redundant copies of the entire header file. We will adopt the same scheme in uClibc. Special cases are included for: alpha mips sparc hppa was omitted because it has not been updated in glibc. All others use the common definition. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-08timerfd.h: Use new "bits/" scheme for arch-specific flagsKevin Cernekee
glibc has split off the arch-specific flag definitions (like TFD_NONBLOCK) into <arch>/bits/timerfd.h, so that there are no longer multiple redundant copies of the entire header file. We will adopt the same scheme in uClibc. Special cases are included for: alpha mips sparc hppa was omitted because it has not been updated in glibc. All others use the common definition. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-08inotify.h: Use new "bits/" scheme for arch-specific flagsKevin Cernekee
glibc has split off the arch-specific flag definitions (like IN_NONBLOCK) into <arch>/bits/inotify.h, so that there are no longer multiple redundant copies of the entire header file. We will adopt the same scheme in uClibc. Special cases are included for: alpha mips sparc hppa was omitted because it has not been updated in glibc. All others use the common definition. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-08inotify_rm_watch: Change second argument to intKevin Cernekee
2009-01-30 Ulrich Drepper <drepper@redhat.com> [BZ #7040] * sysdeps/unix/sysv/linux/sys/inotify.h: Second parameter of inotify_rm_watch should have type int. This change allows us to copy inotify.h verbatim from glibc into uClibc. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-08bfin: set an invalid insn for abortMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-04stubs: Disregard LFSBernhard Reutner-Fischer
Fixes handling of e.g. splice Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-04-02fchmodat: fix handling of flagsMike Frysinger
The Linux syscall takes 3 args, not 4. We have to process flags in userspace ourselves. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-26arm: disable ioperm/iopl stubsMike Frysinger
ARM always provides its own userspace funcs for ioperm/iopl. They've never had syscalls. So disable the stubs on ARM to avoid multiple definition errors. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-26Revert "Fix redefinition of ioperm and iopl in stubs.c and ↵Mike Frysinger
arm/{ioperm.c,iopl.c}" This reverts commit 3bcd031f97d61a8f732d865a0f4248aed2d191ab. The arm code is supposed to provide its own userspace ioperm/iopl functions. They've never had system calls for these funcs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-26stubs: unified from futureBernhard Reutner-Fischer
Future branch extends stubs with ret_enosys_stub. Resolve conflicts, and use superset of future and current master. Adjust posix_fadvise* accordingly. Upon future merge, pick this master version as the final state. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-03-26Fix redefinition of ioperm and iopl in stubs.c and arm/{ioperm.c,iopl.c}Jason Woodward
This fixes the following link failure: LD libuClibc-0.9.33.so libc/libc_so.a(stubs.os): In function `sync_file_range': stubs.c:(.text+0x0): multiple definition of `ioperm' libc/libc_so.a(ioperm.os):ioperm.c:(.text+0x260): first defined here libc/libc_so.a(stubs.os): In function `sync_file_range': stubs.c:(.text+0x0): multiple definition of `iopl' libc/libc_so.a(iopl.os):iopl.c:(.text+0x0): first defined here collect2: ld returned 1 exit status make[1]: *** [lib/libc.so] Error 1 Signed-off-by: Jason Woodward <jason.woodward@timesys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-03-25microblaze: add sys/user.hSteve Bennett
A microblaze-specific sys/user.h is needed for (e.g.) strace, so use this version from glibc. Signed-off-by: Steve Bennett <steveb@workware.net.au> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-02-13arm: Do not use 'sed -r' to calculate IS_EABIKhem Raj
-r is not available on BSD sed so to keep compatibility avoid using it. Signed-off-by: Khem Raj <raj.khem@gmail.com>
2012-02-05lstat/stat/fstat: Use 64bit version of syscall if availableKhem Raj
This is needed for stat'ing loop devices > 255 since otherwise kernel returns EOVERFLOW becasue it needs st_rdev/st_dev to be larger than 16bits but in kernel it uses __old_kernel_stat for stat syscall which has st_rdev/st_dev as unsigned short Add a testcase Signed-off-by: Khem Raj <raj.khem@gmail.com>
2012-02-05Declare __err and pass it to INTERNAL_SYSCALL_NCS so subsequent macros can ↵Khem Raj
use it Signed-off-by: Khem Raj <raj.khem@gmail.com>
2012-01-29tmpnam, tempnam are obsolete in SUSV4Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-28*: if !HAS_THREADS strong alias sigactionBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-28buildsys: fixup sigaction handlingBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-27libc_arm: avoid multiple version of __aeabi_unwind_cpp_pr dummy codeCarmelo Amoroso
Do not pollute libraries with its own implementation of __aeabi_unwind_cpp_pr1 code. Just add it to uclibc_nonshared.a archive and share it. This fixes build issue with static linking of application due to multiple symbol definition in libgcc_eh-a and libpthread.a or librt.a Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2012-01-26*: silence some warningsBernhard Reutner-Fischer
warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-26syscall: flag ia64 syscall error path as unlikelyBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-26arm: tweak commentBernhard Reutner-Fischer
harmless copy'n paste error Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-18i386/sigaction.c: slightly more readable form of [rt_]sigreturn definitionsDenys Vlasenko
No code changes Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2012-01-18stubs: mark stubs as usedBernhard Reutner-Fischer
Avoids warning from -Wunused-function about the alias target that is only used at link-time. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-16mips/dlfcn.h: Disable RTLD_DEEPBINDKhem Raj
RTLD_DEEPBIND is not supported in uclibc Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-12-03x86_64: add PLT bypass for __sigsetjmpMike Frysinger
The current x86_64 setjmp helpers incur a reloc, so fix that up. $ readelf -r lib/libc.so.0 ... Relocation section '.rela.plt' at offset 0xb058 contains 10 entries: Offset Info Type Sym. Value Sym. Name + Addend 000000236010 02a400000007 R_X86_64_JUMP_SLO 000000000000b3c4 __sigsetjmp + 0 ... Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-11-25buildsys: s/CROSS/CROSS_COMPILE/gCarmelo Amoroso
Use CROSS_COMPILE instead of CROSS as other projects are doing (i.e. kernel, busybox, buildroot). CROSS is still supported for backward compatibility only Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-11-23libc: do not rely upon ulimit kernel syscall.Carmelo Amoroso
On several architectures __NR_ulimit syscall number is currently defined but it is remapped onto sys_ni_syscall, while on other architectures they are not longer defined. So use {get,set}rlimit only to implement ulimit interface. It fixes LTP ulimit01 test case. Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> Acked-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-11-14Add a C6X-specific ipc.h.Bernd Schmidt
Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>
2011-11-07libc: flesh out linux scheduler functionsHenning Heinold
Most stuff was taken from the eglibc. Signed-off-by: Henning Heinold <heinold@inf.fu-berlin.de> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-11-07ldso: support RTLD_NOLOADTimo Teräs
So application query if specified module is loaded or not with dlopen. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-11-04powerpc: Fix typo in clone()Bernhard Reutner-Fischer
Thanks to strauman at slac stanford edu for noticing Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-11-04Add stub for eventfd.Jean-Christian de Rivaz
Warn if the enventfd() function is not implemented. Signed-off-by: Jean-Christian de Rivaz <jc@eclis.ch> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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