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Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>
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open_cancel and open2_cancel have diffrent argument on open.
So can't alias this functions.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
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If argument passing to register case (ex. -mregparam=3).
This case set all parameters set to register from caller.
But callee refer to stack. So can't get parameter.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
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Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
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syncfs() was recently added (commit dfa593d4d). But man sync(2) specifies
that syncfs() is Linux-specific. This was overlooked in the original
commit so we add it to the set of Linux-specific functions supported by
uClibc.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Argp is an advanced support for parsing unix-style argument vectors.
In addition to the common getopt interface, it provides automatic
response
to `--help' and `--version' options and use of custom parser in
conjunction
with argp native option parser, among others.
Argp support is required by elfutils package and prelink.
In uClibc argp functionalities has been moved from C library to
libuargp.so
Further the libc.so linker script contains an AS_NEEDED entry so that
it doesn't need to link libuargp.so explicitely.
Disable argp test if feature disabled.
Signed-off-by: Salvatore Cro <salvatore.cro@st.com>
Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Commit e3c3bf2b58 introduce use of pselect6, but has following disadvantages:
* Use of userspace types in args67 structure - it breaks, for example,
configs when 32-bit uClibc-ng compiled against 64-bit kernel. Syscall
will always return EINVAL. We must use __kernel_* types and
__SYSCALL_SIGSET_T_SIZE.
* It have excess checks for NSEC_PER_SEC. Original code from select()
implementation has struct timeval => struct timespec conversion,
kernel select() syscall implementation do the same.
But none of libc versions (glibc, eglibc, musl) I know, perform similar
checks for pselect() - there is no structure fields conversions,
just struct timespec through all the calls.
To have such checks in uClibc-ng we need one example, at least.
* It is possible to avoid extra userspace reads from kernel code if
sigmask == NULL. I suggest to do it, for a few bytes cost.
* Commit didn't add test case to testsuite.
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
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Linux has a pselect syscall since 2.6.something. Using it
rather than emulating it with sigprocmask+select+sigprocmask
is smaller code, and works properly. (The emulation has
race conditions when unblocked signals arrive before or
after the select)
The tv.nsec >= 1E9 handling comes from uclibc's linux select()
implementation, which itself uses pselect() internally if the
pselect syscall exists. I though it would be good to do the
same here.
Note that although the libc pselect() API has 6 arguments,
the linux kernel syscall as 7 arguments. There is an extra,
somewhat vestigial, sizeof the signal mask argument.
Signed-off-by: Nicolas S. Dade <nic.dade@gmail.com>
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Fixes compilation of some faulty applictions.
Patch from Freetz.org
Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>
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Save 20 bytes per FILE structure, avoid indirect call for
read/write/seek/close operations for normal streams.
Additionally, custom streams has fileno = -2 now, like in glibc.
bloat-o-meter report (UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y):
function old new delta
fopencookie 69 131 +62
ftello64 233 260 +27
fseeko64 298 319 +21
fclose 423 442 +19
.rodata 16696 16708 +12
fileno_unlocked 53 45 -8
__ns_name_pack 859 851 -8
vswscanf 184 144 -40
vdprintf 231 187 -44
vsscanf 210 151 -59
vswprintf 269 201 -68
vsnprintf 249 181 -68
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(add/remove: 0/0 grow/shrink: 5/7 up/down: 141/-295) Total: -154 bytes
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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.globl can be used for every architecture so remove the define.
Sync with GNU C library.
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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.
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To support older Linux kernel f.e. 2.6.32.68 include all
required definitions. Copied from musl libc fanotify.h.
Reported by Thomas Petazzoni from Buildroot project.
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Implementation taken from musl libc project.
Missing functions recognized by buildroot autobuilders
with failing open-vm-tools.
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Only on Linux alpha __NR_oldumount is defined and a umount not
umount2 syscall, but with two parameter is used.
Add special handling for it and an alias for umount2() users.
There was a discussion about this special handling, but it seems
it was never committed upstream:
http://marc.info/?l=linux-alpha&m=137455037930738&w=2
Runtime tested with qemu-alpha and a statically linked busybox
binary.
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Add support for the syncfs() system call.
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
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Add support for fanotify_init() and fanotify_mark() syscalls. The header
file is taken from glibc.
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
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posix_fallocate implementation in uClibc relies on fallocate
system call - it just returns what fallocate returns. However
fallocate returns -1 on failure and assigns an error number
to errno variable. In the same time posix_fallocate must
return an error number but not -1.
What does this patch: if fallocate returns -1 then posix_fallocate
returns errno. Otherwise posix_fallocate returns 0 on success.
However there is a side effect - posix_fallocate sets errno on
failure because fallocate does it. But POSIX does not forbid it
thus it's not a problem.
Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
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For common generic syscall ABI fallocate syscall handler in kernel
expects a 64-bit signed arguments for offset and len. However uClibc
has 2 wrappers for this syscall: fallocate and fallocate64.
On 32-bit machines fallocate (not fallocate64) expects 32-bit values of
offset and len. Thus in this case uClibc's fallocate must pass to the
syscall those values with sign extension. High word of 64-bit value must
be 0 or 0xFFFFFFFF depending on sign of the original 32-bit value (offset
or len). It is how sign extansion works - all high bits of the negative
value must be 1.
So on 32-bit machines uClibc's fallocate does sign extension incorrectly
when 32-bit values are passed (offset or len). It just fills the second
word of 64-bit value by zeros. E.g. fallocate works incorrectly when offset
or length is negative value - in this case kernel thinks that positive
values are passed.
Solution is to call fallocate64 from fallocate and pass 32-bit values of
offset and len to fallocate64. off_t type is automatically converted to
off64_t with an appropriate sign extension. Then fallocate64 invokes
kernel's system call properly.
This error is detected in LTP's test kernel/syscalls/fallocate02:
----------->8----------
fallocate(..., 1, -1024, 1024) failed, expected errno:22: TEST_ERRNO=0
fallocate(..., 1, 1024, -1024) failed, expected errno:22: TEST_ERRNO=0
fallocate(..., 1, 12288, -1024) failed, expected errno:22: TEST_ERRNO=0
fallocate(..., 1, -24576, 1024) failed, expected errno:22: TEST_ERRNO=0
----------->8----------
fallocate does not emit an error because negative values are passed to the
kernel without sign extension and kernel thinks that it got valid positive
values.
Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
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fallocate system call must return 0 on success. On error, -1 is returned
and errno is set to indicate the error.
However there is an error in fallocate which is fixed by this patch - it
does not set errno and returns invalid value on error (it returns error
code instead of -1).
This error is detected in LTP's test kernel/syscalls/fallocate02:
----------->8----------
fallocate(..., 1, 0, 1024) failed, expected errno:9: TEST_ERRNO=0
fallocate(..., 1, -1024, 1024) failed, expected errno:22: TEST_ERRNO=0
fallocate(..., 1, 1024, -1024) failed, expected errno:22: TEST_ERRNO=0
fallocate(..., 1, 12288, 0) failed, expected errno:22: TEST_ERRNO=0
fallocate(..., 1, 12288, -1024) failed, expected errno:22: TEST_ERRNO=0
fallocate(..., 1, -24576, 1024) failed, expected errno:22: TEST_ERRNO=0
----------->8----------
Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
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uClibc doesn't define signal info for the SIGSYS signal which is issued
in case of hitting a syscall prohibited by seccomp.
This is sad as it makes debugging seccomp filter policies impossible on
some architectures (at least ARM and PowerPC, maybe also others) which
do not coincidentally set si_value.sival_int as the syscall number.
To fix this, import the definitions and macros needed from glibc.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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This reverts commit bd3eaf83ef1b4954b6c0e7ba8bbdd29b2cd4a833.
They are now implemented.
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When compiling python you get duplicate symbol problem.
Seen in the autobuilders of buildroot project.
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Only the stub warnings left for now.
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Introduce a <sys/random.h> for it.
/* FIXME: aren't there a couple of __restrict and const missing ?
*/
extern int getrandom(void *__buf, size_t count, unsigned int flags)
__nonnull ((1)) __wur;
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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https://dev.openwrt.org/browser/trunk/toolchain/uClibc/patches-0.9.33.2/616-mips_fix_stat_time.patch
When booting in Qemu you get for example failures from mdev -s otherwise.
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Add __LEAF to all __THROW, introduce non-leaf __THROWNL
Adjust affected spots accordingly.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Sync with GNU libc, see here why r7 is not usable for
thumb mode:
https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/arm/sysdep.h;h=37eac192b1e2e7f53f112b16450b9ce57054e27f;hb=HEAD
Remove old OABI support.
Fixes build breakage for ARM noMMU builds.
Still no runtime testing.
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include/bits/sigset.h:219:62: warning: right-hand operand of comma expression has no effect [-Wunused-value]
include/bits/sigset.h:210:63: warning: right-hand operand of comma expression has no effect [-Wunused-value]
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Currently UCLIBC_SYSCALL_ALIGN_64BIT is not explicitly handled. Fix that
and make sure the special handling is done for powerpc/xtensa which use
UCLIBC_SYSCALL_ALIGN_64BIT but don't use hole punched syscall handler in
kernel.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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arm/powerpc/xtensa pass @advice as 2nd arg to syscall (vs. canonical 4th)
Current code however does this for UCLIBC_SYSCALL_ALIGN_64BIT which
powerpc/xtensa also happen to define.
This is not true for ARCv2 ISA and possibly other arch of future with
64-bit even register requirement, which uses the standard syscall
handler in kernel.
Fix that by providing 2 variants of SYSCALL_ALIGN_64BIT
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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This reverts commit 6b6ede3d15f04fe825cfa9f697507457e3640344.
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Fix copy'n paste error for ppc64 and other sync_file_range2 arches
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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mknod() in glibc/eglibc will check the argument, like this,
...
if (k_dev != dev) {
__set_errno (EINVAL);
return -1;
}
...
So add argument check in uclibc's mknod() too.
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Fixes compile errors with latest util-linux.
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The GNU variant of getopt() previously had no way to turn off
getopt_long() support.
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