Use NSS_STATUS_TRYAGAIN to indicate insufficient buffer (BZ #16878)
The netgroups nss modules in the glibc tree use NSS_STATUS_UNAVAIL
(with errno as ERANGE) when the supplied buffer does not have
sufficient space for the result. This is wrong, because the canonical
way to indicate insufficient buffer is to set the errno to ERANGE and
the status to NSS_STATUS_TRYAGAIN, as is used by all other modules.
This fixes nscd behaviour when the nss_ldap module returns
NSS_STATUS_TRYAGAIN to indicate that a netgroup entry is too long to
fit into the supplied buffer.
Provide correct buffer length to netgroup queries in nscd (BZ #16695)
The buffer to query netgroup entries is allocated sufficient space for
the netgroup entries and the key to be appended at the end, but it
sends in an incorrect available length to the NSS netgroup query
functions, resulting in overflow of the buffer in some special cases.
The fix here is to factor in the key length when sending the available
buffer and buffer length to the query functions.
aarch64: Merge __local_multiple_threads offset with memory reference
This also highlights that we'd been loading 64-bits instead of
the proper 32-bits. Caught by the linker as a relocation error,
since the variable happened to be unaligned for 64-bits.
Serge Hallyn [Tue, 11 Mar 2014 04:17:07 +0000 (23:17 -0500)]
misc/sys/xattr.h: guard against linux uapi header inclusion
If the glibc xattr.h header is included after the uapi header,
compilation fails due to an enum re-using a #define from the
uapi header. Protect against this by guarding the define and
enum inclusions against each other.
(A corresponding kernel patch has been sent here:
http://lkml.org/lkml/2014/3/7/331 )
(See https://lists.debian.org/debian-glibc/2014/03/msg00029.html
and https://sourceware.org/glibc/wiki/Synchronizing_Headers
for more information.)
David S. Miller [Wed, 30 Apr 2014 19:57:51 +0000 (12:57 -0700)]
Fix v9/64-bit strcmp when string ends in multiple zero bytes.
[BZ #16885]
* sysdeps/sparc/sparc64/strcmp.S: Fix end comparison handling when
multiple zero bytes exist at the end of a string.
Reported by Aurelien Jarno <aurelien@aurel32.net>
* string/test-strcmp.c (check): Add explicit test for situations where
there are multiple zero bytes after the first.
In 84ba214c, I removed some redundant sign computations and in the
process, I incorrectly got rid of a temporary variable, thus passing
the absolute value of the input to bsloww1. This caused #16623.
Carlos O'Donell [Thu, 6 Feb 2014 16:12:48 +0000 (11:12 -0500)]
BZ #16529: Fix pedantic warning with netinet/in.h.
When compiling with pedantic the following warning is seen:
gcc -Wall -pedantic -O0 -o test test.c
In file included from test.c:3:0:
/path/inet/netinet/in.h:111:21: warning: comma at end of \
enumerator list [-Wpedantic]
IPPROTO_MH = 135, /* IPv6 mobility header. */
^
It is valid C99 to have a trailing comma after the last item in
an enumeration. However it is not valid C90. If possible glibc
attempts to keep all headers C90 + long long without requiring
C99 features. In this case it's easy to fix the headers and it
removes the warning seem with -pedantic.
Carlos O'Donell [Wed, 5 Feb 2014 15:10:34 +0000 (10:10 -0500)]
Fix tst-setgetname for Linux kernels < 2.6.33.
Support for /proc/self/task/$tid/comm as added in Linux 2.6.33,
therefore since the test tst-setgetname relies on this functionality
to operate we must skip the test in kernels < 2.6.33. We wrap the
checks with __ASSUME_PROC_PID_TASK_COMM such that in the future when
we move arch_minimum_kernel to 2.6.33 we can remove this code.
Fix infinite loop in ftell when writing wide char data (BZ #16398)
ftell tries to avoid flushing the buffer when it is in write mode by
converting the wide char data and placing it into the binary buffer.
If the output buffer space is full and there is data to write, the
code reverts to flushing the buffer. This breaks when there is space
in the buffer but it is not enough to convert the next character in
the wide data buffer, due to which __codecvt_do_out returns a
__codecvt_partial status. In this case, ftell keeps running in an
infinite loop.
The fix here is to detect the __codecvt_partial status in addition to
checking if the buffer is full. I have also added a test case that
demonstrates the infinite loop.
This patch creates implicit rules to match the abifiles if
abilist-pattern is defined in the architecture Makefile. This allows
machine specific Makefiles to define different abifiles names
(for instance *-le.abilist for powerpc64le).
Carlos O'Donell [Mon, 3 Feb 2014 17:43:25 +0000 (12:43 -0500)]
Fix manual build warnings.
The mixed use of automatic and manual node next, previous,
and top specification causes warning when building the manual.
This fix explicitly specifies the node's next, previous and top
values to fix the warning.
Alexandre Oliva [Mon, 3 Feb 2014 19:17:59 +0000 (17:17 -0200)]
* manual/threads.texi (pthread_key_create, pthread_key_delete,
pthread_getspecific, pthread_setspecific): Format with
@deftypefun, and add @safety note.
* manual/signal.texi: Move comments that analyze the above
functions to their home place.
Fixes to address issues from BZ #15022 resolution, as follows:
* TLS updates to csu/libc-tls.c -- we now have a proper main map, so
there's no longer a need to create a separate fake one to keep TLS
structures,
* random updates to elf/dl-close.c -- LM_ID_BASE is now a valid name
space ID for static executables as well, so assert that we don't
unload the main map. Similarly dl_nns isn't supposed to be 0 for
static executables anymore,
* actual BZ #16046 fix to elf/dl-iteratephdr.c -- the dl_iterate_phdr
special function for static executables isn't needed anymore, provided
that l_phdr and l_phnum members of the main map have been properly
initialized (done in _dl_non_dynamic_init in elf/dl-support.c now),
* ld.so.cache loader update to elf/dl-load.c --
GL(dl_ns)[LM_ID_BASE]._ns_loaded is now always initialized in static
executables so can become the fallback loader map to check for
DF_1_NODEFLIB, provided that the l_flags_1 member of the main map has
been properly initialized (done in elf/dl-support.c now); this also
ensures previous semantics elsewhere in elf/dl-load.c,
* matching updates to elf/dl-support.c -- to complement the two fixes
above.
H.J. Lu [Wed, 29 Jan 2014 15:51:41 +0000 (07:51 -0800)]
Disable x87 inline functions for SSE2 math
When i386 and x86-64 mathinline.h was merged into a single mathinline.h,
"gcc -m32" enables x87 inline functions on x86-64 even when -mfpmath=sse
and SSE2 is enabled. It is a regression on x86-64. We should check
__SSE2_MATH__ instead of __x86_64__ when disabling x87 inline functions.
projects / thirdparty / glibc.git / log
