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2023-09-14fstatat64: define it as a wrapper of statx if the kernel does not support ↵Yann Sionneau
fstatat64 syscall Define fstatat64 as a wrapper of statx if the kernel does not support fstatat64 syscall This is the case for non-legacy architectures that don't define __ARCH_WANT_NEW_STAT in their linux arch/xxx/include/asm/unistd.h Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>
2023-08-14gettimeofday() only include ldso.h if vdso support is activatedlordrasmus
2023-08-08aarch64: add hwcap header fileWaldemar Brodkorb
2023-08-02add missing wchar.h, fixes a compile error with openadkWaldemar Brodkorb
2023-07-14[PATCH] libc/sysdeps/linux/common/bits/wchar.h: resync with glibc, fix build ↵Waldemar Brodkorb
issue with gcc 12 The current definition of __WCHAR_MIN and __WCHAR_MAX are only correct when wchar_t is an int. This is not the case on ARM/AArch64 where wchar_t is an unsigned int, or some other architectures where wchar_t is a long. The current incorrect definition causes a build issue for example when building mpd, which uses boost, with gcc 12.x: In file included from /home/thomas/buildroot/aarch64/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/boost/integer.hpp:20, from /home/thomas/buildroot/aarch64/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/boost/crc.hpp:42, from ../src/storage/StorageState.cxx:43: /home/thomas/buildroot/aarch64/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/boost/integer_traits.hpp:105:69: error: narrowing conversion of ‘-2147483648’ from ‘int’ to ‘wchar_t’ [-Wnarrowing] 105 | public detail::integer_traits_base<wchar_t, WCHAR_MIN, WCHAR_MAX> | ^ This issue was fixed in glibc in 2013, see bug report https://sourceware.org/bugzilla/show_bug.cgi?id=15036, and upstream commit https://sourceware.org/git/?p=glibc.git;a=commit;h=052aff95782fefe9c63566471063e8b20836bfb8. Since the i386-specific definition of __WCHAR_MIN and __WCHAR_MAX was also removed at the same time in glibc, we do the same as part of this commit. Reported-by: Clément Ramirez <clement.ramirez@bootlin.com> With-some-useful-help-from: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2023-05-10gettimeofday: fix static buildWaldemar Brodkorb
2023-03-13Emulate 'futimesat' when __NR_futimesat is not available.Elliot Thomas
2023-01-22Defined MAP_FIXED_NOREPLACElinted
Added definition for MAP_FIXED_NOREPLACE which was added in kernel 4.17 Signed-off-by: linted <linted@users.noreply.github.com>
2022-12-19gettimeofday() vdso supportramin
2022-12-19sycall macro for vdso supportramin
2022-08-08resource.h: add missing RUSAGE_THREADWaldemar Brodkorb
There is a real-world usage of RUSAGE_THREAD by the pistache project, https://github.com/oktal/pistache. Reported-By: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2022-05-20define RLIMIT_RTTIME, bump RLIMIT_NLIMITSRomain Naour
This macro exists since Linux 2.6.25 [1] and is defined in glibc since 2.14 [2] for sparc and most supported architectures. RLIMIT_RTTIME has been added later for mips [3] and alpha [4]. For example, RLIMIT_RTTIME is needed to build qemu 7.0.0 with Linux user-land emulation support [5]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=78f2c7db6068fd6ef75b8c120f04a388848eacb5 [2] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=67f86a251e0d36107fe28999281d46e76941c7b9 [3] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=8969f4df1a526aa60dd0bc1c4736cf02104d4a05 [4] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=53c2cb7641bd866398156625ef672bbd2d78a0d8 [5] https://git.qemu.org/?p=qemu.git;a=commitdiff;h=244fd08323088db73590ff2317dfe86f810b51d7 Signed-off-by: Romain Naour <romain.naour@gmail.com>
2022-02-27guard prlimit, reported by Lance FredricksonWaldemar Brodkorb
2022-01-28sched.h: Add SCHED_DEADLINEPetr Vorel
Defined in kernel v3.14, commit aab03e05e8f7 ("sched/deadline: Add SCHED_DEADLINE structures & implementation") Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
2022-01-21add prlimit syscall wrapper, now for realWaldemar Brodkorb
2022-01-21add prlimit syscall wrapperWaldemar Brodkorb
2021-12-24Fix some warnings due to type issuesYann Sionneau
Fixes those two warnings: In file included from <command-line>: libc/sysdeps/linux/common/openat64.c:18:33: warning: 'openat64' alias between functions of incompatible types 'int(int, const char *, int, ...)' and 'int(int, const char *, int, mode_t)' {aka 'int(int, const char *, int, unsigned int)'} [-Wattribute-alias=] 18 | strong_alias_untyped(__openat64,openat64) | ^~~~~~~~ ./include/libc-symbols.h:177:31: note: in definition of macro '_strong_alias_untyped' 177 | extern __typeof (aliasname) aliasname __attribute__ ((alias (#name))) __attribute_copy__ (name); | ^~~~~~~~~ libc/sysdeps/linux/common/openat64.c:18:1: note: in expansion of macro 'strong_alias_untyped' 18 | strong_alias_untyped(__openat64,openat64) | ^~~~~~~~~~~~~~~~~~~~ libc/sysdeps/linux/common/openat64.c:14:12: note: aliased declaration here 14 | static int __openat64(int fd, const char *file, int oflag, mode_t mode) | ^~~~~~~~~~ and CC libc/sysdeps/linux/common/stat.os libc/sysdeps/linux/common/stat.c: In function 'stat': libc/sysdeps/linux/common/stat.c:28:40: warning: passing argument 3 of 'fstatat64' from incompatible pointer type [-Wincompatible-pointer-types] 28 | return fstatat64(AT_FDCWD, file_name, buf, 0); | ^~~ | | | struct stat * In file included from libc/sysdeps/linux/common/stat.c:11: ./include/sys/stat.h:258:35: note: expected 'struct stat64 * restrict' but argument is of type 'struct stat *' 258 | struct stat64 *__restrict __buf, int __flag) | ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~ Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>
2021-04-09open: Add support for O_TMPFILENicolas Cavallari
Since Linux 3.11, O_TMPFILE allows to create unnamed files that can be linked later on. It is internally defined as (O_TMPFILE | O_DIRECTORY) to make it fail on old kernels. Copying definitions from glibc for O_TMPFILE is not enough to support O_TMPFILE; The open() wrapper also need to pass the mode when the flag contains O_TMPFILE, otherwise, it will pass mode 000 which will succeed but yield unexpected results. openat() is curiously not affected since it passes the mode unconditionally.. Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
2021-01-28use renameat2 syscall, when renameat isn't availableWaldemar Brodkorb
2021-01-27fix umount2 compilation for alpha on Linux 5.xWaldemar Brodkorb
2020-08-19Add {name, open}_to_handle_at() implementationPetr Vorel
copied from musl 1.2.1. Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
2020-08-15sys/random.h include stddef.hWaldemar Brodkorb
Reported-By: akater <nuclearspace@gmail.com>
2020-07-02Rename __unused struct members to include a namespaceEd Wildgoose
Rename various spare fields in structs to include a namespace This should avoid accidental clashes with uses of the __unused symbol in upstream projects. eg currently it causes a compile error in dhcpcd 8.x due to their re-use of the __unused symbol as a macro This follows the style of glibc which does something equivalent
2020-04-01statx: make include conditional, fixes non-csky arch buildroot buildsWaldemar Brodkorb
2020-02-07common/bits: Fix ipc_perm and semid_ds definitions for 64-bit archesVladimir Murzin
It fixes: FAIL sem got 1 expected 0 failed: incorrect sem_nsems! semget(IPC_CREAT) = 0 semctl(k) = 0 sem_nsems = 0 for aarch64. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
2020-02-03csky: add statx conditionalsWaldemar Brodkorb
Similar to glibc commit https://sourceware.org/git/?p=glibc.git;a=commit;h=6bbfc5c09fc5b5e3d4a0cddbbd4e2e457767dae7 we need to handle Linux kernel change, which removed stat64 family from default syscall set. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>
2020-01-30poll: avoid calling select with empty sets which hangs the processYann Sionneau
Avoid calling select with empty sets which hangs the process This makes uClibc-ng act like glibc and musl Without this fix the test_poll of python3 testsuite hangs forever Scenario of the issue: If you call poll with only invalid file descriptors, like in python3 testsuite (https://github.com/python/cpython/blob/master/Lib/test/test_poll.py#L83) You will go through uClibc poll emulation code, which is based on select syscall. Your first call to select will fail, it will return -1 and errno will be set to EBADF: https://github.com/wbx-github/uclibc-ng/blob/master/libc/sysdeps/linux/common/poll.c#L120 Then you will go through the for loop which tests individually each file descriptor by calling select on each one: https://github.com/wbx-github/uclibc-ng/blob/master/libc/sysdeps/linux/common/poll.c#L163 each call will also return -1 with errno being equal to EBADF. Therefore all pollfd will have the POLLNVAL flag in their respective revents field. And, the most important, rset/wset/xset will stay empty. Then the for loop ends, the "continue" makes the while loop run again. The following select() is run again: https://github.com/wbx-github/uclibc-ng/blob/master/libc/sysdeps/linux/common/poll.c#L120 But this time the sets are empty. If the poll was called with timeout set to -1, this select will hang forever because there is no timeout and the sets are empty so no event will ever wake it up. test program: int main(void) { struct pollfd pfd; int ret; int pipe_fds[2]; pipe(pipe_fds); close(pipe_fds[0]); close(pipe_fds[1]); pfd.fd = pipe_fds[0]; pfd.events = POLLIN | POLLOUT | POLLPRI; pfd.revents = 0; ret = poll(&pfd, 1, -1); printf("ret: %d\n", ret); if (ret < 0) printf("error: %s", strerror(errno)); else { puts("revents: "); if (pfd.revents & POLLERR) printf(" POLLERR"); if (pfd.revents & POLLHUP) printf(" POLLHUP"); if (pfd.revents & POLLNVAL) printf(" POLLNVAL"); puts(""); } return 0; } This hangs on uClibc-ng aarch64 and Kalray's arch (kv3) but does the following on musl and glibc: " ret: 1 revents: POLLNVAL " strace output of this program with uClibc *without* the patch applied: pselect6(4, [3], [3], [3], NULL, NULL) = -1 EBADF (Bad file descriptor) pselect6(4, [3], [3], [3], {tv_sec=0, tv_nsec=0}, NULL) = -1 EBADF (Bad file descriptor) pselect6(0, 0x7ffffffb80, 0x7ffffffb68, 0x7ffffffb50, NULL, NULL (never finishes) strace output of this program with uClibc *with* the patch applied: pselect6(4, [3], [3], [3], NULL, NULL) = -1 EBADF (Bad file descriptor) pselect6(4, [3], [3], [3], {tv_sec=0, tv_nsec=0}, NULL) = -1 EBADF (Bad file descriptor) write(1, "ret: 1\n", 7ret: 1 ) = 7 write(1, "revents: \n", 10revents: ) = 10 write(1, " POLLNVAL\n", 10 POLLNVAL ) = 10 exit_group(0) = ? +++ exited with 0 +++
2019-11-17fix PTRAVE_EVENT_SECCOMP typo in ptrace.hJoris Vink
Hi, This diff fixes a typo in the PTRACE_EVENT_SECCOMP event code. The typo itself was introduced in 2012 when syncing with glibc header files and was itself fixed in 2013 in the glibc headers.
2019-11-05implement fexecve from glibcWaldemar Brodkorb
2019-05-13preadv/pwritev: fix offset argument typeMax Filippov
preadv/pwritev don't provide separate version for 64-bit wide off_t, and default to 32-bit wide off_t, which results in a mismatch between declaration and definition for user programs built with -D_FILE_OFFSET_BITS=64. Make offset argument of both functions __off64_t. This fixes test misc/tst-preadvwritev on xtensa. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2018-12-14several patches for uclibc nghan_mao@c-sky.com
I've got several patches to fix ltp/openmp/uclibc-ng-test testcase fail on c-sky. - fix a ltp testcase. - fix the problem that pthread creat will fail when libomp is linked before libc, the variable pagesize is not init. - fix tst-cancel4 and tst-cancel16. tst-cancelx4 and tst-cancelx16 still fail with this patch applied, cleanup handler is not called for open/creat/fcntl, seems some thing wrong with unwind, I haven't check the rootcause yet.
2018-11-27statfs.h: sync generic header with glibcWaldemar Brodkorb
Fix issues with aarch64 and df with mismatching header between kernel and libc.
2018-11-01time.h: Add CLOCK_TAIPetr Vorel
Added in kernel in kernel 3.10 in 1ff3c9677bff ("timekeeping: Add CLOCK_TAI clockid") NOTE: CLOCK_SGI_CYCLE was not added, as it has been lately removed. Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
2018-10-20do not expose recvmmsg/sendmmsg for unsupported kernelsWaldemar Brodkorb
2018-09-21bugfix renameat2 wrong implement.Guo Ren
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-08-16sched_setaffinity: use the same style with glibc'sGuo Ren
Call getpid() in INTERNAL_SYSCALL will break the argument regs, because gcc couldn't save destoryed regs for system call asm. Ref to glibc, we could just remove all the check code. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-06-10risc-v: initial 64 bit port, static only (no TLS/NPTL)Waldemar Brodkorb
Only a simple hello world is tested in qemu system emulation.
2018-04-17common/sendfile.c: bugfix can't support offset is NULLGuo Ren
In ltp testcase sendfile08.c, it use offset=NULL to test the api. PATCH V2: fixup the stupid missing check in the end. Sorry for lose test. See "man sendfile" and it really support offset is NULL. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-04-17Revert "common/sendfile.c: bugfix can't support offset is NULL"Waldemar Brodkorb
This reverts commit b00fd230ed0b49b9f23d829ad5d09859f34bb754.
2018-04-13lseek.c: bugfix ltp lseek01.cGuo Ren
Ref the implement from the glibc and high=0 seems so bad. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-04-13common/sendfile.c: bugfix can't support offset is NULLGuo Ren
In ltp testcase sendfile08.c, it use offset=NULL to test the api. See "man sendfile" and it really support offset is NULL. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-04-02use __NR_newfstatat only for modern Linux architecturesWaldemar Brodkorb
Otherwise it breaks mips64 n64. Should be used for aarch64/tilegx only.
2018-03-12tile: add basic support for tilegxWaldemar Brodkorb
This adds basic support for tile architecture. Only static binaries, no ld.so or threading support. Tested with qemu-tilegx only.
2018-02-17bits/socket.h: add missing definesWaldemar Brodkorb
Newer iproute2 package make use of some of defines. Sync missing defines with GNU C library.
2018-02-04mman: disable memfd_create declarationWaldemar Brodkorb
2018-02-03bits/mman.h: consolidate header fileWaldemar Brodkorb
Sync with GNU C library and consolidate duplicate non architecture specific defines. MAP_UNINITIALIZED is only defined to 0x4000000 and used by the Linux kernel when CONFIG_MMAP_ALLOW_UNINITIALIZED is enabled. CONFIG_MMAP_ALLOW_UNINITIALIZED is only available for nommu. See Documentation/nommu-mmap.txt.
2018-01-21simplify and fix getcwdWaldemar Brodkorb
The fallback code is not used as all supported kernels have the syscall. Check if a absolute path is returned from syscall.
2018-01-15rt: cleanup and allow to build for linuxthreadsWaldemar Brodkorb
It seems there is no real dependency to NPTL for these clock_* functions when UCLIBC_ADVANCED_REALTIME is enabled. No regressions found. Reported-by: Baruch Siach <baruch@tkos.co.il>
2018-01-15syscall: Make common implementation match unistd.hStafford Horne
The definition of syscall() in unistd.h is with varargs. Traditionally the common implementation in uclibc has been with regular arguments. This patch updates that by using varargs. This has caused issues on architectures like or1k which have different calling conventions for varargs and regular arg parameters. The implementation here is based on an implementation from Joel Stanley <joel@jms.id.au>. There is a difference that I do not initialize the stack args with 0 as they are immediately overwritten by va_args. Signed-off-by: Stafford Horne <shorne@gmail.com>
2018-01-08csky: bugfix libc sync_file_range.c for csky.Guo Ren
Use __NR_sync_file_range2 for csky sync_file_range function. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
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