February 2018 - devel

Creating a pull request
by Daniel Dubinsky 29 May '18

29 May '18

Hello, Sorry for the bother but I’ve been struggling with compiling uclibc-ng. All I did was clone; make defconfig; make. I get the following error: CC ldso/ldso/ldso.oS In file included from ./include/bits/posix1_lim.h:152:0, from ./include/limits.h:144, from ./include/sys/param.h:25, from ./ldso/include/ldso.h:43, from ldso/ldso/ldso.c:32: ./include/bits/local_lim.h:38:26: fatal error: linux/limits.h: No such file or directory compilation terminated. Makerules:370: recipe for target 'ldso/ldso/ldso.oS' failed make: *** [ldso/ldso/ldso.oS] Error 1 I’ve tried to remove -nostdinc, the compilation then proceeds but with no success. I also tried to install the following packages: kernel-package, linux-libc-dev, binutils, libc-dev-bin, linux-headers-4.10.0-35 and linux-headers-generic. Can anyone help? Best regards, Daniel Dubinsky

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Re: [uclibc-ng-devel] Undefined reference to name_to_handle_at while building eudev
by Waldemar Brodkorb 28 Feb '18

28 Feb '18

Hi, this time it is only relevant to aarch64, as I imported it from glibc without recognizing that I should have removed it. best regards Waldemar > On 28. Feb 2018, at 11:34, Thomas Petazzoni <thomas.petazzoni(a)bootlin.com> wrote: > > Hello, > >> On Sun, 11 Feb 2018 12:07:33 -0800, Alexey Neyman wrote: >> >> I noticed a failure while compiling eudev against uClibc-ng 1.0.28 on >> aarch64: it detected name_to_handle_at being declared in the header but >> then failed to link because it is not implemented in uClibc-ng. >> >> Patch attached. > > A quick heads up on this: it is by far not the first time that I see > uClibc headers having the prototype for a given function, and not the > actual implementation of this function. > > It is confusing, and sometimes causes problems when just an autoconf > compile test is done, and not an autoconf link test. > > Shouldn't this be fixed globally ? > > Thomas > -- > Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons) > Embedded Linux and Kernel engineering > http://bootlin.com >

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Undefined reference to name_to_handle_at while building eudev
by Alexey Neyman 14 Feb '18

14 Feb '18

Hi, I noticed a failure while compiling eudev against uClibc-ng 1.0.28 on aarch64: it detected name_to_handle_at being declared in the header but then failed to link because it is not implemented in uClibc-ng. Patch attached. Regards, Alexey.

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[PATCH] csky: bugfix ltp open12 failed.
by Guo Ren 04 Feb '18

04 Feb '18

Signed-off-by: Guo Ren <ren_guo(a)c-sky.com> --- libc/sysdeps/linux/csky/bits/fcntl.h | 55 ++++++++++++++++++++++++++++-------- 1 file changed, 43 insertions(+), 12 deletions(-) diff --git a/libc/sysdeps/linux/csky/bits/fcntl.h b/libc/sysdeps/linux/csky/bits/fcntl.h index feacdad..15c1f52 100644 --- a/libc/sysdeps/linux/csky/bits/fcntl.h +++ b/libc/sysdeps/linux/csky/bits/fcntl.h @@ -2,11 +2,12 @@ # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." #endif - #include <sys/types.h> #ifdef __USE_GNU # include <bits/uio.h> #endif + + /* open/fcntl - O_SYNC is only implemented on blocks devices and on files located on an ext2 file system */ #define O_ACCMODE 0003 @@ -24,12 +25,16 @@ #define O_FSYNC O_SYNC #define O_ASYNC 020000 -#ifdef __USE_GNU +#ifdef __USE_XOPEN2K8 # define O_DIRECTORY 040000 /* Must be a directory. */ # define O_NOFOLLOW 0100000 /* Do not follow links. */ +# define O_CLOEXEC 02000000 /* Set close_on_exec. */ +#endif + +#ifdef __USE_GNU # define O_DIRECT 0200000 /* Direct disk access. */ -# define O_STREAMING 04000000/* streaming access */ -# define O_CLOEXEC 02000000 /* set close_on_exec */ +# define O_NOATIME 01000000 /* Do not set atime. */ +# define O_PATH 010000000 /* Resolve pathname but do not open file. */ #endif /* For now Linux has synchronisity options for data and read operations. @@ -63,7 +68,7 @@ #define F_SETLK64 13 /* Set record locking info (non-blocking). */ #define F_SETLKW64 14 /* Set record locking info (blocking). */ -#if defined __USE_BSD || defined __USE_XOPEN2K +#if defined __USE_BSD || defined __USE_UNIX98 # define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ # define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ #endif @@ -77,9 +82,13 @@ # define F_SETLEASE 1024 /* Set a lease. */ # define F_GETLEASE 1025 /* Enquire what lease is active. */ # define F_NOTIFY 1026 /* Request notfications on a directory. */ +# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with + close-on-exit set on new fd. */ +# define F_SETPIPE_SZ 1031 /* Set pipe page size array. */ +# define F_GETPIPE_SZ 1032 /* Get pipe page size array. */ #endif -/* For F_[GET|SET]FL. */ +/* For F_[GET|SET]FD. */ #define FD_CLOEXEC 1 /* actually anything with low bit set goes */ /* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ @@ -163,6 +172,28 @@ struct flock64 # define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ #endif + +#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__ +/* Flags for SYNC_FILE_RANGE. */ +# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages + in the range before performing the + write. */ +# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those + dirty pages in the range which are + not presently under writeback. */ +# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in + the range after performing the + write. */ + +/* Flags for SPLICE and VMSPLICE. */ +# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */ +# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing + (but we may still block on the fd + we splice from/to). */ +# define SPLICE_F_MORE 4 /* Expect more data. */ +# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */ +#endif + __BEGIN_DECLS #if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__ @@ -171,23 +202,23 @@ __BEGIN_DECLS extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count) __THROW; - /* Selective file content synch'ing. */ extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to, - unsigned int __flags); + unsigned int __flags); /* Splice address range into a pipe. */ extern ssize_t vmsplice (int __fdout, const struct iovec *__iov, - size_t __count, unsigned int __flags); + size_t __count, unsigned int __flags); /* Splice two files together. */ extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout, - __off64_t *__offout, size_t __len, - unsigned int __flags); + __off64_t *__offout, size_t __len, + unsigned int __flags); /* In-kernel implementation of tee for pipe buffers. */ extern ssize_t tee (int __fdin, int __fdout, size_t __len, - unsigned int __flags); + unsigned int __flags); #endif __END_DECLS + -- 2.7.4

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[PATCH 1/1] aarch64/sys/ucontext.h: include bits/sigcontext.h
by Bernd Kuhls 04 Feb '18

04 Feb '18

Fixes a buildroot build error with ffmpeg In file included from /home/bernd/buildroot/output/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/signal.h:329:0, from fftools/ffmpeg.h:26, from fftools/ffmpeg_opt.c:23: /home/bernd/buildroot/output/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/sys/ucontext.h:52:16: error: field 'uc_mcontext' has incomplete type mcontext_t uc_mcontext; ^~~~~~~~~~~ using this defconfig: BR2_aarch64=y BR2_PACKAGE_FFMPEG=y sys/ucontext.h for other archs already include bits/sigcontext.h, on aarch64 this is needed as well. Signed-off-by: Bernd Kuhls <bernd.kuhls(a)t-online.de> --- libc/sysdeps/linux/aarch64/sys/ucontext.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libc/sysdeps/linux/aarch64/sys/ucontext.h b/libc/sysdeps/linux/aarch64/sys/ucontext.h index d17458896..dc7303b54 100644 --- a/libc/sysdeps/linux/aarch64/sys/ucontext.h +++ b/libc/sysdeps/linux/aarch64/sys/ucontext.h @@ -26,6 +26,10 @@ #include <sys/procfs.h> +/* We need the signal context definitions even if they are not used + included in <signal.h>. */ +#include <bits/sigcontext.h> + typedef elf_greg_t greg_t; /* Container for all general registers. */ -- 2.11.0

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mman.h patch
by Waldemar Brodkorb 02 Feb '18

02 Feb '18

Hi, I would like to push attached patch next week. Any veto? best regards Waldemar

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