uClinux-H8

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• uclibc-ng

h8300: O_DIRECT and O_DIRECTIRY swapping.

h8300: Add ARCH_HAS_DEPRECATED_SYSCALLS

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

revert changes

getdents is deprecated.
So redirect to readdir64 in __ARCH_HAS_DEPRECATED_SYSCALLS__.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

__ARCH_HAS_DEPRECATED_SYSCALLS__ case fix.
getdents is deprecated.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

Remove alias.

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>

openat argument fix.

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>

h8300: vfork flags update.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

rx: update

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

rx: update

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

Add RX support.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

remove deprecated architectures v850/i960

Both architectures are more or less deprecated.
No Linux upstream support, no gcc support for uClinux.

Replace bltzal with lapc for MIPS R6 builds.

The R6 version of MIPS does not support the bltzal instruction. This
patch changes dl-startup.h and dl-sysdep.h to use lapc on R6 instead.
lapc is a new R6 insruction so older systems need to continue to use
bltzal in order to load register $31.

Signed-off-by: Steve Ellcey <sellcey@imgtec.com>

Replace MIPS specific memcpy.S/memset.S with version from glibc/newlib.

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>

pselect: Use linux pselect syscall when available

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>

libc/pwd_grp: Create template for non-reentrant functions

Avoid a lot of copy'n'paste code, no functionality change

Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>

Use gcc's __builtin_mempcpy() as __mempcpy(), if possible

Patch from OpenWrt.

Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>

use arch specific thread stack size for nptl

Use the arch specific thread stack size for nptl if the size
returned by getrlimits exceeds it - fixes threads on systems
with only 16 MB RAM.

Patch from OpenWRT

Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>

Do define some IPv6 related symbols even with IPv6 disabled

Fixes compilation of some faulty applictions.
Patch from Freetz.org

Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>

resolv: fix gethostbyname2_r to match gethostbyname_r, fixing bugs with AAAA 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>

inet/resolv: Fix broken h_aliases list terminator after 2dab3f5

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>

Revert "glibc compat: bump glibc minor version"

This reverts commit 4a05ed87ceb946608100642121c32e642b58cd0d.

This breaks SSP detection for gcc, which might be problematic
for some projects. Revert it after some discussion with
buildroot and openembedded people.

reduce stack cache size to save memory space

Idea from different projects as OpenWrt and others.
https://lists.openwrt.org/pipermail/openwrt-devel/2013-November/022299.html
https://github.com/wl500g/toolchain/blob/master/toolchain/uClibc/patches/0.9.32/980-stack-cache-maxsize.patch

testsuite subdir fix

Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>

Add implementation for copysignl for ppc

Signed-off-by: Khem Raj <raj.khem@gmail.com>

libc/stdlib: canonicalize_file_name() memory leak

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.

utlis/ldd: Fix host ldd in case of target wordsize differs from host one

improved solution from http://freetz.org/ticket/842

Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>

test/tls: tls-macros*.h fixes from glibc

glibc commits
4822a2a520 Add x32 support to TLS_LE/TLS_IE/TLS_GD
63fb881a04 tls-macros-mips.h: Load $gp as required.
Merge 32-bit and 64-bit versions.

Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>

dlclose fix

Patch is from Timo Teras

Refs.:
http://lists.uclibc.org/pipermail/uclibc/2012-October/047059.html
http://git.alpinelinux.org/cgit/aports/tree/main/libc0.9.32/uclibc-dlclose-fix.patch

Fix syslog messages lost if syslogd is temporary busy

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>