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Both architectures are more or less deprecated.
No Linux upstream support, no gcc support for uClinux.
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order
Implement simplest variant of /etc/gai.conf to control getaddrinfo
IPv6/IPv4 addresses sorting. Keep the default sort order - IPv6 first,
IPv4 second. To invert it, create /etc/gai.conf containing single line:
precedence ::ffff:0:0/96 100
Example before:
$ nslookup security.debian.org 8.8.8.8
Server: 8.8.8.8
Address 1: 8.8.8.8 google-public-dns-a.google.com
Name: security.debian.org
Address 1: 2001:a78:5:0:216:35ff:fe7f:be4f villa.debian.org
Address 2: 2001:a78:5:1:216:35ff:fe7f:6ceb lobos.debian.org
Address 3: 195.20.242.89 wieck.debian.org
Address 4: 212.211.132.250 lobos.debian.org
Address 5: 212.211.132.32 villa.debian.org
After patch & precedence set in /etc/gai.conf:
$ nslookup security.debian.org 8.8.8.8
Server: 8.8.8.8
Address 1: 8.8.8.8 google-public-dns-a.google.com
Name: security.debian.org
Address 1: 195.20.242.89 wieck.debian.org
Address 2: 212.211.132.250 lobos.debian.org
Address 3: 212.211.132.32 villa.debian.org
Address 4: 2001:a78:5:0:216:35ff:fe7f:be4f villa.debian.org
Address 5: 2001:a78:5:1:216:35ff:fe7f:6ceb lobos.debian.org
bloat-o-meter report:
function old new delta
getaddrinfo 726 1138 +412
gaih_inet 2660 2692 +32
.rodata 16618 16643 +25
__gai_precedence - 1 +1
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/0 up/down: 882/0) Total: 470 bytes
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
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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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vfork internally unwinds stack up one frame, saving the original return
address in the a3 of the unwound frame. To do this in windowed ABI it
needs to exchange two topmost bits of the original return address and of
the helper entry point. Current code doesn't do it correctly for
addresses above 0x40000000, resulting in illegal instruction exception
for configurations that put code high, e.g. for noMMU.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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These MIPS specific versions of memcpy.S and memset.S are faster than
the current ones and match what is in newlib and glibc. They also have
support for the mips32r6 and mips64r6 architectures.
Signed-off-by: Steve Ellcey <sellcey@imgtec.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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Avoid a lot of copy'n'paste code, no functionality change
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
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Patch from OpenWrt.
Reported-by: Leonid Lisovskiy <lly.dev@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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lookups
The latter half of gethostbyname2_r (doing AAAA queries) is rather dramatically different
from the corresponding portion of gethostbyname_r (doing A queries). This leads to problems
like calls to getaddrinfo only returning one IPv6 address, even when multiple exist.
Seems to be entirely a case of divergent evolution -- a half-decade of fixes for the IPv4
code but no love for IPv6. Until now. ;)
DNS behaviour for IPv6 is really no different than for IPv4 -- beyond the difference in
address sizes, there's no need for the functions to be so different.
Consequently, this patch really is almost just a cut-and-paste of gethostbyname_r, with
the appropriate substitutions of in6_addr, AF_INET6, etc; while holding on to the few
extra bits that actually belong in there (eg #ifdef __UCLIBC_HAS_IPV6__).
Signed-off-by: Wes Campaigne <westacular@gmail.com>
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Commit 2dab3f5a "resolv: tiny shrinkage in /etc/hosts handling" leads to
that read_etc_hosts_r() provide garbage pointer at the end of h_aliases
list if more than four hostnames follow a dotted quad in /etc/hosts
Test-case:
Add following line to /etc/hosts
63.63.0.2 host1 alias2 alias3 alias4 alias5
#include <stdio.h>
#include <errno.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
int main (void)
{
int i;
char *a;
struct hostent *he;
struct in_addr ipv4addr;
inet_pton(AF_INET, "63.63.0.2", &ipv4addr);
he = gethostbyaddr(&ipv4addr, sizeof ipv4addr, AF_INET);
if (he == NULL)
exit(1);
printf("Host name: '%s'\n", he->h_name);
i = 0;
while ((a = he->h_aliases[i]) != NULL) {
printf("Host alias: '%s'\n", a);
++i;
}
return 0;
}
Wrong output:
Host name: 'host1'
Host alias: 'alias2'
Host alias: 'alias3'
Host alias: 'alias4'
Host alias: 'alias5'
Host alias: '??'
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Uclibc's canonicalize_file_name() is allocating temprary buffer of 4kB
(PATH_MAX), and passing it to realpath() as second argument. Function is
not checking if realpath() fails and memory is lost.
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Commit 4139fe5aec935ba3f462dcaf6aafb6e5eadf1ab9 fixes SIGSTOPed syslogd issue.
but introduced new one - messages will be lost when socket buffer gets full,
not only if syslogd is stalled, but even if it accepts message slower than
someone sends and possibly leads to security hole, when important messages get
lost as result of attacker flooding.
Patch adds 1 second waiting for socket buffer can accept the message, helps
when syslogd is working hard. If it's stalled/SIGSTOPed, message will be sent
to errout as before. After that, further non-blocking /dev/log connect attempts
will fail immediately with EAGAIN error until syslogd reads some from it.
function old new delta
openlog_intern 259 355 +96
static.tv - 8 +8
.rodata 151 159 +8
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 112/0) Total: 112 bytes
Signed-off-by: Vladislav Grishenko <themiron@mail.ru>
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If syslogd is stopped and restarted while a process has the log open, the next
message that process produces will be logged to the console and not to the new
instance of syslogd. Further messages will be routed correctly, but not the
first one.
Based on original patch
Bug 3889 - syslog loses messages when syslogd restarted
https://bugs.busybox.net/show_bug.cgi?id=3889
function old new delta
openlog 33 68 +35
__vsyslog 851 848 -3
openlog_intern 318 259 -59
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 35/-62) Total: -27 bytes
Signed-off-by: Vladislav Grishenko <themiron@mail.ru>
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set error events
https://bugs.busybox.net/show_bug.cgi?id=3211
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Free 1k of static data (.bss)
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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http://bugs.busybox.net/show_bug.cgi?id=5588
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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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
------------------------------------------------------------------------------
(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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Taken from Freetz.org.
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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This reverts commit ea21c7610aa1131b37a4533cf13dd89f727fb83f.
This was accidently pushed, before first coffee.
Sorry this is a bad commit.
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error out on internal NPTL used signals.
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In gcc 5.x there is a compile failure, for sh2 builds
as shad no longer is accepted. Strange that it is working for
4.9.x. Add back old assembly code.
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Reduce the initial buffer size for open_memstream (used by vasprintf),
as most strings are usually smaller than that.
Realloc the buffer after finishing the string to further reduce size.
Problem appears in case of UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y,
see http://dev.openwrt.org/ticket/13024
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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This fix commit 76dfc7ce8c "Some requested additional malloc entry points"
from 2004's
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Only alpha, hppa and sparc need non-default value.
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glibc [BZ# 16922]
* sysdeps/mips/sys/asm.h (INT_SUB): Fix definition.
(LONG_SUB): Ditto.
(PTR_SUB): Ditto.
glibc commit 5057ad3b50
Signed-off-by: Steve Ellcey <sellcey@mips.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Get rid of NIOS support. We try to support NIOSII.
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It is marked as broken and it seems you can't get
any hardware for that anymore.
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I mailed with Jan-Benedict Glaw, it seems VAX on Linux
is really a lot of work todo and uClibc support didn't work ever.
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No real hardware available. The project for sh64 with sh5 seems
dead since 10 years. Gcc will remove support for it soon.
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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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See here for a discussion about the problem:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47779
Latest gcc/binutils git can generate a working uClibc-ng
toolchain. Binaries tested on Arcturus uCBF54x board via
chroot from original firmware.
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Actually revert 711ad9f92c1cf992c4a3d9f4f709bd692be7789c, as
it breaks vfork() on real hardware. So the common
implementation no longer works for bfin.
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When installing header files a warning is generated, because
the header is mandatory.
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The changeset 9dea5dc921b5f4045a18c63eb92e84dc274d17eb in the Linux kernel
expose the direct syscalls for sockets. For example udhcpc then will use sendto
syscall directly and get an EINVAL error. Disable direct syscalls as it was done
for SPARC in the past. Musl and GNU libc are not affected, as they already
disable direct socket syscalls on i386.
Reported-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
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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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Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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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 FPGA systems from Lattice Semiconductor
http://www.latticesemi.com
Merge https://github.com/m-labs/uclibc-lm32.git
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Fixes following compile error, when UCLIBC_HAS_CONTEXT_FUNCS is enabled
on a mips64 build:
CC libc/sysdeps/linux/common/_exit.os
libc/sysdeps/linux/mips/swapcontext.S: Assembler messages:
libc/sysdeps/linux/mips/swapcontext.S:110: Error: Illegal operands `s.d fs6,(30*8+296)($4)'
libc/sysdeps/linux/mips/swapcontext.S:111: Error: Illegal operands `s.d fs7,(31*8+296)($4)'
libc/sysdeps/linux/mips/swapcontext.S:149: Error: Illegal operands `l.d fs6,(30*8+296)($2)'
libc/sysdeps/linux/mips/swapcontext.S:150: Error: Illegal operands `l.d fs7,(31*8+296)($2)'
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Enable ia64 in the menu.
Fix build for architectures withou ld.so support.
Fix syntax error in bits/byteswap.h.
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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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