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2024-08-11add memfd_create syscall wrapperWaldemar Brodkorb
2024-03-03x86: enable time64Waldemar 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>
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>
2021-02-19fcntl.h: Make F_DUPFD_CLOEXEC if _USE_XOPEN2K8Paul Cercueil
The F_DUPFD_CLOEXEC flag was added in POSIX 2008.09. Signed-off-by: Paul Cercueil <paul@crapouillou.net>
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
2020-02-03csky: 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>
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.
2017-06-08fcntl.h: fixup namespace for O_DIRECTORY/O_NOFOLLOW/O_CLOEXECWaldemar Brodkorb
Sync with GNU C library. Found while trying to compile linux-rdma to uClibc-ng. Reported-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
2017-01-29use safe, even if possibly a few cycles slower, six-argument syscall ↵mirabilos
implementation Signed-off-by: mirabilos <m@mirbsd.org> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
2017-01-29extract six-argument syscalls from the restmirabilos
(still same implementation though) Signed-off-by: mirabilos <m@mirbsd.org> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
2017-01-29remove dead codeWaldemar Brodkorb
Signed-off-by: mirabilos <m@mirbsd.org> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
2016-08-27remove DOMULTI supportWaldemar Brodkorb
A single test with targeting ARM showed that this feature seems bit rotted. Remove DOMULTI and simplify Makefiles.
2015-12-07add definitions for O_PATHWaldemar Brodkorb
Only alpha, hppa and sparc need non-default value.
2015-12-05remove __UCLIBC_ASM_GLOBAL_DIRECTIVE__Waldemar Brodkorb
.globl can be used for every architecture so remove the define. Sync with GNU C library.
2015-12-05remove __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__Waldemar Brodkorb
It's even no longer required for non-ported ppc64 architecture. Sync with GNU C library. This simplify the macros in include/libc-symbols.h.
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>
2013-04-01libc: rename TRUNCATE64_HAS_4_ARGS to SYSCALL_ALIGN_64BITMike Frysinger
The reason truncate64 takes 4 args on some arches is that their ABI requires 64bit values to be aligned on register pair boundaries. Since this alignment affects more than just truncate64, rename the define to properly document its purpose. This also allows us to expand it to the other impacted syscalls (which will be done in a follow up commit). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-11-18drop support for pre ISO-C compilersMike Frysinger
This drops __signed, __volatile, and __const. Only the latter was used in the code base, and for uClibc, not consistently. Much of the code used plain "const" which meant "__const" was useless. Really, the point of this is to stay in sync with what glibc did. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-11-18Replace FSF snail mail address with URLsMike Frysinger
This matches a similar change made to glibc. No functional changes here. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-10-02libc/sysdeps: add __kernel_long and __kernel_ulongChris Packham
Linux 3.4 added __kernel_long_t and __kernel_ulong_t and various exported header files were updated to use these new types. Add the definitions for __kernel_long_t and __kernel_ulong_t to the relevant kernel_types.h headers. This change was automated with the following scriptlet git grep --name-only 'typedef.*__kernel_old_dev_t' \ | xargs sed -i '/typedef.*__kernel_old_dev_t/ a\ typedef long\t\t__kernel_long_t;\ typedef unsigned long\t__kernel_ulong_t;' Whitespace in arm, avr32, hppa, sparc was then manually fixed up. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> -- Here's a cleaned up patch which should get the whitespace right. I'm a bit iffy about the sparc changes they make sense to me but it's not a platform I have access to. I can break this up per arch or per maintainer if requested. libc/sysdeps/linux/alpha/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/arm/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/avr32/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/bfin/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/c6x/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/cris/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/e1/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/h8300/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/hppa/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/i386/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/ia64/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/m68k/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/microblaze/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/mips/bits/kernel_types.h | 4 ++++ libc/sysdeps/linux/nios2/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/powerpc/bits/kernel_types.h | 4 ++++ libc/sysdeps/linux/sh/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/sh64/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/sparc/bits/kernel_types.h | 4 ++++ libc/sysdeps/linux/v850/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/x86_64/bits/kernel_types.h | 2 ++ libc/sysdeps/linux/xtensa/bits/kernel_types.h | 2 ++ 22 files changed, 50 insertions(+) Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-08-04i386/bits/syscalls.h: allow immediate values as 6th syscall argNatanael Copa
Allow use of immedate values as the 6th syscall argument. Otherwise we must store the arg on memory. This gives gcc more options to optimize better. This also works around an issue with posix_fallocate. Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15huge_vall.h: add for i386,ia64,m68k,sparcPeter S. Mazinger
relevant only for gcc < 3.3 or non-gcc compiler Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15cleanup bits/setjmp.h of stuff moved to jmpbuf-offsets.h and jmpbuf-unwind.hPeter S. Mazinger
Make sure we use the new jmpbuf-*.h headers While there, adapt the offset on microblaze and the _JMPBUF_UNWINDS macro on bfin, it seems, these were changed in the meantime. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.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>
2011-03-09bits/kernel_stat.h: no need for _LIBC guard, the file is not installed on targetPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
2011-02-09i386: extend IMA guards to also cover LTOBernhard Reutner-Fischer
See GCC PR47577; TODO: Remove them. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-10-31libm: improve readability of math.h; expand comments and docsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-24use uniform form of C99 keywordsBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-04-09Fixes NPTL build on x86.Natanael Copa
Signed-off-by: Natanael Copa <natanael.copa@gmail.com> Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2010-04-06Merge commit 'origin/master' into nptlAustin Foxley
Conflicts: libc/misc/utmp/utent.c libc/sysdeps/linux/i386/bits/syscalls.h Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2010-04-06i386/bits/syscalls.h: more compact, but stack-hungry syscall code. disabled ↵Denys Vlasenko
so far Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-04-06i386/bits/syscalls.h: explain _BITS_SYSCALLS_ASMDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-04-06i386/bits/syscalls.h: generate better code using more restrictive asm ↵Denys Vlasenko
constraints Example: time() doesn't push/pop two registers now, and is smaller: <__GI_time>: -57 push %edi -8b 7c 24 08 mov 0x8(%esp),%edi -53 push %ebx -89 fb mov %edi,%ebx +8b 4c 24 04 mov 0x4(%esp),%ecx +87 cb xchg %ecx,%ebx b8 0d 00 00 00 mov $0xd,%eax cd 80 int $0x80 -5b pop %ebx -5f pop %edi +87 cb xchg %ecx,%ebx c3 ret Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-04-06i386/bits/syscalls.h: explain how it works. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-28Merge remote branch 'origin/master' into nptlAustin Foxley
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2009-11-23bits/mmap.h: unify ala linux asm-generic effortsMike Frysinger
Most ports have the same exact mman bit defines, so let's unify things like the linux kernel has with the asm-generic efforts. A few ports are left behind as they are non-trivial to merge -- the arch maintainers can tackle it if they care. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-17i386 specific bit for nptlAustin Foxley
* RESET_PID support for clone.S * SAVE_PID, RESTORE_PID in vfork.S * fixup syscall assembly constraints to be a little less restrictive allows arbitrary variables to be used as the syscall nr Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2009-10-15i386: use common INTERNAL_SYSCALL_ERROR_PMike Frysinger
The common define has the same behavior, just formatted differently. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-07clean up O_CLOEXEC handlingMike Frysinger
Drop the "#ifndef O_CLOEXEC" cruft, enable O_CLOEXEC in most fcntl.h headers, and import __ASSUME_O_CLOEXEC from glibc. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-08-30honour NO_LONG_DOUBLE_MATHBernhard Reutner-Fischer
This fixes compilation errors on hosts that turn off long double support for C99 like powerpc32. Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-07-26enable nanosecond stat support for everyoneMike Frysinger
Fill out the stat structure so that the nanosecond resolution support is always available. There is a small code size increase for a few ports (three additional assignments in xstatconv), but otherwise everything should remain the same. While we're here, punt __old_kernel_stat from the few headers that still define it as it is unused in uClibc and causes compile errors after these nanosecond changes. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-21byteswap: unify common definitionsMike Frysinger
The majority of the byteswap functions are the same across all arches, so setup a common header to provide definitions if they don't exist. This allows arches to override only the ones they actually want to implement with inline assembly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-21s/UCLIBC_INTERNAL/_LIBC/gDenys Vlasenko
Undo my old mistake. I added UCLIBC_INTERNAL define, but later I realized _LIBC is doing exactly the same thing. This change converts all usages of UCLIBC_INTERNAL to _LIBC, removing all instances of UCLIBC_INTERNAL. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-09syscall: unify part 2: NCS varietyMike Frysinger
Declare common NCS (non-constant syscall) variants and convert the existing ports over to this. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-08syscall: unify common syscall definesMike Frysinger
Unify all the common syscall defines in syscalls-common.h and scrub all the duplicated code from relevant ports. This should also make converting existing ports to INLINE_SYSCALL() much easier as they don't have to get lost in all the unrelated noise, as well as creating new ports. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-03uClibc_arch_features: sync defines between portsMike Frysinger
Make sure each arch has the same complete list to make comparing between them easier. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-03mknod: widen the parameters to match kernelDenis Vlasenko
ustat: same, + remove superfluous "conversion" which does nothing at best, loses high dev bits at worst i386/bits/kernel_stat.h: update to reflect reality (wider dev_t) h8300/bits/kernel_stat.h: same arm/bits/kernel_stat.h: cosmetics to match kernel header to the letter
2009-02-11docs/probe_math_exception.c:Denis Vlasenko
update example libc/sysdeps/linux/i386/bits/mathinline.h: improve __finite() macro, add __finitef macro (why they aren't always macros? why aren't they arch independent?) libm/math_private.h: much better comments on math_opt_barrier() and math_force_eval() libm/s_finite[f].c: improve out-of-line __finite[f]() too (one byte less, yay...)
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