| Age | Commit message (Collapse) | Author |
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Don't use K&R style for function definitions.
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POSIX allows applications to switch file handles when a read results
in an end of file. Unset the cached offset at this point so that it
is queried again.
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The test case fails to truncate the file when a file is intended to be
opened in w or w+ mode. Add O_TRUNC to fix this. The test still
succeeds with this change.
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Currently we seek to end of file if there are unflushed writes or the
stream is in write mode, to get the current offset for writing in
append mode, which is the end of file. The latter case (i.e. stream
is in write mode, but no unflushed writes) is unnecessary since it
will only happen when the stream has just been flushed, in which case
the recorded offset ought to be reliable.
Removing that case lets ftell give the correct offset when it follows
an ftruncate. The latter truncates the file, but does not change the
file position, due to which it is permissible to call ftell without an
intervening fseek call.
Tested on x86_64 to verify that the added test case fails without the
patch and succeeds with it, and that there are no additional
regressions due to it.
[BZ #17647]
* libio/fileops.c (do_ftell): Seek only when there are
unflushed writes.
* libio/wfileops.c (do_ftell_wide): Likewise.
* libio/tst-ftell-active-handler.c (do_ftruncate_test): New
test case.
(do_one_test): Call it.
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Some linknamespace tests were failing because of references to
getdate_err. References to this symbol should be allowed for XPG4 and
later XSI standards; it was missing from the whitelist of data
symbols. This patch adds it to that list.
Tested for x86_64.
* conform/list-header-symbols.pl (%extra_syms): Add getdate_err
for XPG4, UNIX98, XOPEN2K and XOPEN2K8.
* conform/Makefile (test-xfail-XOPEN2K/pthread.h/linknamespace):
Remove variable.
(test-xfail-XOPEN2K/time.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/pthread.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/time.h/linknamespace): Likewise.
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It seems two of the XFAILed linknamespace tests were completely fixed
by some of my recent namespace fixes in combination (although not by
any individual one of those fixes relative to the sources used for
testing each patch, or that individual fix would also have removed the
XFAIL in question). This patch removes those XFAILs that are no
longer needed.
Tested for x86_64.
* conform/Makefile (test-xfail-XOPEN2K/aio.h/linknamespace):
Remove variable.
(test-xfail-XOPEN2K8/aio.h/linknamespace): Likewise.
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Various objects in glibc bring in ifaddrs.o (via references to
__netlink_*) and thereby getifaddrs and freeifaddrs, which are not
part of any standard supported by glibc. These should be weak aliases
of __getifaddrs and __freeifaddrs; this patch makes them so.
(The path by which these functions are brought in is Linux-specific,
but it seems less confusing to make all versions of these functions
weak aliases rather than only the Linux-specific versions that
definitely need it.)
Tested for x86_64 (testsuite, and that disassembly of installed shared
libraries is unchanged by this patch).
[BZ #17668]
* inet/ifaddrs.c (getifaddrs): Rename to __getifaddrs and define
as weak alias of __getifaddrs. Use libc_hidden_weak.
(freeifaddrs): Rename to __freeifaddrs and define as weak alias of
__freeifaddrs. Use libc_hidden_weak.
* sysdeps/gnu/ifaddrs.c (getifaddrs): Rename to __getifaddrs and
define as weak alias of __getifaddrs. Use libc_hidden_weak.
(freeifaddrs): Rename to __freeifaddrs and define as weak alias of
__freeifaddrs. Use libc_hidden_weak.
* sysdeps/unix/sysv/linux/ifaddrs.c (getifaddrs): Rename to
__getifaddrs and define as weak alias of __getifaddrs. Use
libc_hidden_weak.
(freeifaddrs): Rename to __freeifaddrs and define as weak alias of
__freeifaddrs. Use libc_hidden_weak.
* conform/Makefile (test-xfail-XOPEN2K/net/if.h/linknamespace):
Remove variable.
(test-xfail-POSIX2008/net/if.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/net/if.h/linknamespace): Likewise.
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Since __libc_start_main may not be in the same 256MB-aligned region as
the function __start, replace use of jal instruction with la/jalr.
This fixes linker issue reported in:
https://sourceware.org/bugzilla/show_bug.cgi?id=17601
[BZ #17601]
* sysdeps/mips/start.S (__start): Use indirect jump to call
__libc_start_main.
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This patch fixes a warning in a test that was added since my recent
warning cleanup:
tst-stack4.c: In function 'dso_process':
tst-stack4.c:64:7: warning: format '%i' expects argument of type 'int', but argument 3 has type 'uintptr_t' [-Wformat=]
The original variable has type int then is cast to uintptr_t, and from
there to void *, to pass it to a thread, so reversing the process by
casting to uintptr_t and then to int is natural; this patch does so.
Tested for x86_64.
* nptl/tst-stack4.c (dso_process): Use int not uintptr_t for t.
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This patch fixes -Waddress warnings in nptl/tst-mutex1.c from
comparing the address of an object with NULL (ATTR may either be NULL,
or the address of an object when included from other tests, and the
warning arises in the latter case). A macro ATTR_NULL is defined
alongside ATTR and used for the tests.
Tested for x86_64.
* nptl/tst-mutex1.c: Include <stdbool.h>.
[!ATTR] (ATTR_NULL): New macro.
(do_test): Test !ATTR_NULL instead of ATTR != NULL.
* nptl/tst-mutexpi1.c (ATTR_NULL): New macro.
* nptl/tst-mutexpp1.c (ATTR_NULL): New macro.
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This patch fixes a "discards qualifiers" warning in
posix/tst-getopt_long1.c. glibc is built with -Wwrite-strings,
meaning a char * cannot be initialized directly with a string
constant; the patch casts the string constants to char *.
Tested for x86_64.
* posix/tst-getopt_long1.c (do_test): Cast elements of argv array
to char *.
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For XPG3/XPG4 (defined __USE_XOPEN && !defined __USE_UNIX98), unistd.h
declares many functions that should only be declared for __USE_MISC
(none of them are in XPG3/XPG4): sethostname sethostid getdomainname
setdomainname vhangup revoke profil acct getusershell endusershell
setusershell daemon. The whole block with the [__USE_MISC ||
(__USE_XOPEN && !__USE_UNIX98)] conditional contains only functions
that are not in XPG3/XPG4, so this patch simply changes the
conditional.
Tested for x86_64 (testsuite, and that installed stripped shared
libraries are unchanged by this patch).
[BZ #17665]
* posix/unistd.h [__USE_MISC || (__USE_XOPEN && !__USE_UNIX98)]:
Change conditional to [__USE_MISC].
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Various POSIX functions bring in res_init.o, res_hconf.o or
mntent_r.o, which use fgets_unlocked, which is not a POSIX function.
This patch arranges for them to use __fgets_unlocked instead. (The
IS_IN (libc) conditional in rec_hconf.c is needed because that file is
also used in nscd.)
Tested for x86_64 (testsuite, and that disassembly of installed shared
libraries is unchanged by the patch except for an assertion line
number). Note that most of the linknamespace tests that failed
because of fgets_unlocked from the resolver also fail because of other
symbols brought in by the resolver, so the number of XFAILs this
removes is limited. Also note that fgets_unlocked failures for
unistd.h for XPG3/XPG4 showed up that actually unistd.h is declaring
too much for XPG3/XPG4 (bug 17665) - there is no actual need to make
getusershell.c use __fgets_unlocked (at least as regards formal
standards are concerned; maybe it should still change for
namespace-cleanness of _DEFAULT_SOURCE) because the functions there
aren't actually in any of the supported standards; the correct fix for
those failures will be to stop the *usershell* functions appearing in
unistd.h for XPG3/XPG4.
[BZ #17664]
* misc/mntent_r.c (__getmntent_r): Use __fgets_unlocked instead of
fgets_unlocked.
* resolv/res_hconf.c [IS_IN (libc)] (fgets_unlocked): Define to
__fgets_unlocked.
* resolv/res_init.c (__res_vinit): Use __fgets_unlocked instead of
fgets_unlocked.
* conform/Makefile (test-xfail-XPG4/sys/statvfs.h/linknamespace):
Remove variable.
(test-xfail-POSIX/sys/mman.h/linknamespace): Likewise.
(test-xfail-UNIX98/sys/mman.h/linknamespace): Likewise.
(test-xfail-UNIX98/sys/statvfs.h/linknamespace): Likewise.
(test-xfail-XOPEN2K/sys/mman.h/linknamespace): Likewise.
(test-xfail-XOPEN2K/sys/statvfs.h/linknamespace): Likewise.
(test-xfail-POSIX2008/sys/mman.h/linknamespace): Likewise.
(test-xfail-POSIX2008/sys/statvfs.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/sys/mman.h/linknamespace): Likewise.
(test-xfail-XOPEN2K8/sys/statvfs.h/linknamespace): Likewise.
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This patch fixes a warning "tst-unique4lib.cc:17:12: warning: 'b'
defined but not used [-Wunused-variable]". I'm not sure exactly what
aspects of the test are or are not significant for the issue it is
testing for; the patch makes the minimal change of marking the
variable with __attribute__ ((used)).
Tested for x86_64.
* elf/tst-unique4lib.cc (b): Mark with __attribute__ ((used)).
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This patch makes the POWER7 optimized strpbrk generic by using
default doubleword stores to zero the hash, instead of VSX
instructions. Performance on POWER7/POWER8 does not change.
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This patch makes the POWER7 optimized strcspn generic by using
default doubleword stores to zero the hash, instead of VSX
instructions. Performance on POWER7/POWER8 does not change.
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This patch makes the POWER7 optimized strspn generic by using
default doubleword stores to zero the hash, instead of VSX
instructions. Performance on POWER7/POWER8 machines does not changed.
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[BZ #17581] The checking chain of unused chunks was terminated by a hash of
the block pointer, which was sometimes confused with the chunk length byte.
The chain is now terminated by a NULL byte.
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This patch optimizes strtok and strtok_r for POWERPC64.
A table of 256 characters is created and marked based on
the 'accept' argument and used to check for any occurance on
the input string.Loop unrolling is also used to gain improvements.
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Indent the preprocessor directives correctly according
to the normal glibc style.
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Replace bespoke code to align a value with
the ALIGN_UP macro to make it easier to read.
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Developers creating development packages must take care
to have their static linker DSO link point to the actual
SONAME file. This allows ldconfig to correctly create
the required links for the SONAME. The behaviour is now
more clearly documented in a code comment added by this
patch.
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This patch addresses one known caveat in the linknamespace tests: with
this patch they will now only look for definitions of symbols in
relevant libraries, meaning that librt and libpthread are not checked
for ISO C standards, XPG3 and XPG4.
In particular, this means that if __pthread_initialize_minimal is
somehow brought in for one of those standards, the definition from
libc-tls.o will be considered instead of that from libpthread, so
avoiding bringing in lots of other libpthread symbols. This should
address some of the failures reported by Carlos in
<https://sourceware.org/ml/libc-alpha/2014-11/msg00882.html>, where
__pointer_chk_guard_local brought in __pthread_initialize_minimal.
Tested for x86_64. The removal of one XFAIL for XPG4 actually shows
up a header bug (shm_open should not be declared for XPG4 - the
namespace issue was for symbols brought in by shm_open, which is no
longer found at all now librt isn't searched; I've filed bug 17663 for
the header bug, though it would show up eventually anyway in the
course of review of conform/ data against XPG4).
Committed.
* conform/Makefile (linknamespace-symlist-stdlibs-base): New
variable.
(linknamespace-symlist-stdlibs-tests): Likewise.
(tests-special): Append $(linknamespace-symlist-stdlibs-tests)
instead of $(objpfx)symlist-stdlibs.
(linknamespace-libs-isoc): New variable.
(linknamespace-libs): Use $(linknamespace-libs-isoc).
(linknamespace-libs-ISO): New variable.
(linknamespace-libs-ISO99): Likewise.
(linknamespace-libs-ISO11): Likewise.
(linknamespace-libs-XPG3): Likewise.
(linknamespace-libs-XPG4): Likewise.
(linknamespace-libs-POSIX): Likewise.
(linknamespace-libs-UNIX98): Likewise.
(linknamespace-libs-XOPEN2K): Likewise.
(linknamespace-libs-POSIX2008): Likewise.
(linknamespace-libs-XOPEN2K8): Likewise.
($(objpfx)symlist-stdlibs): Replace by
$(linknamespace-symlist-stdlibs-tests). Use
$(linknamespace-libs-$*) as set of libraries.
($(linknamespace-header-tests)): Update dependencies. Use
$(objpfx)symlist-stdlibs-$$std for --libsyms argument.
(test-xfail-XPG4/sys/mman.h/linknamespace): Remove.
* conform/linknamespace.pl: Remove comment about considering
definitions of symbols from irrelevant libraries.
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This patch changes _dl_allocate_tls_init to resize DTV if the current DTV
isn't big enough. Tested on X86-64, x32 and ia32.
[BZ #13862]
* elf/dl-tls.c: Include <atomic.h>.
(oom): Remove #ifdef SHARED/#endif.
(_dl_static_dtv, _dl_initial_dtv): Moved before ...
(_dl_resize_dtv): This. Extracted from _dl_update_slotinfo.
(_dl_allocate_tls_init): Resize DTV if the current DTV isn't
big enough.
(_dl_update_slotinfo): Call _dl_resize_dtv to resize DTV.
* nptl/Makefile (tests): Add tst-stack4.
(modules-names): Add tst-stack4mod.
($(objpfx)tst-stack4): New.
(tst-stack4mod.sos): Likewise.
($(objpfx)tst-stack4.out): Likewise.
($(tst-stack4mod.sos)): Likewise.
(clean): Likewise.
* nptl/tst-stack4.c: New file.
* nptl/tst-stack4mod.c: Likewise.
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misc/tst-pselect.c uses the deprecated sigblock interface, resulting
in "tst-pselect.c:42:3: warning: 'sigblock' is deprecated (declared at
../signal/signal.h:189) [-Wdeprecated-declarations]". The choice of
sigblock rather than sigprocmask has nothing to do with what this test
is testing, so this patch changes it to use sigprocmask to avoid the
warning.
Tested for x86_64.
* misc/tst-pselect.c (do_test): Use sigprocmask instead of
sigblock.
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This patch fixes a warning "variable 'wc' set but not used" in
libio/bug-ungetwc1.c.
The test didn't verify much about the results of the functions it
called. This patch makes it check the result of getwc (thereby fixing
the warning), check end of file does not arrive too late in the getwc
loop, and check EOF is no longer set after ungetwc.
Tested for x86_64.
* libio/bug-ungetwc1.c (do_test): Verify results of getwc and
feof.
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This patch fixes a "set but not used" warning from
dlfcn/failtestmod.c. A variable is used only to store the return
value from dlsym. As I understand this test, the point is simply to
do a sequence of load / unload operations in a loop, and all that
matters here is that dlsym gets called and returns without crashing,
not what its return value is. So this patch removes the assignment to
a variable.
Tested for x86_64.
* dlfcn/failtestmod.c (constr): Do not store result of dlsym in a
variable.
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gcc now warns when the arguments to memset may have been accidentally
transposed (i.e. length set to zero instead of the byte), so we don't
need that bit of the code in glibc headers anymore.
Tested on x86_64. Coe generated by gcc 4.8 is identical with or
without the patch. I also tested gcc master, which does not result in
any new failures. It does fail quite a few FORTIFY_SOURCE tests, but
those failures are not due to this patch.
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Testing for 32-bit x86 shows up warnings in
stdio-common/tst-fmemopen.c where off_t values are passed to %zu
printf formats. Since the values are in messages relating to function
calls where the relevant argument is of type size_t, it seems most
appropriate to cast explicitly to size_t when passing to printf, which
this patch does.
Tested for 32-bit x86.
* stdio-common/tst-fmemopen.c (do_test): Cast st_size values to
size_t for %zu format.
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Testing for 32-bit x86 shows up a warning "tst-nss-test1.c:25:3:
warning: format '%ju' expects argument of type 'uintmax_t', but
argument 2 has type 'int' [-Wformat=]". The argument is a difference
of two pointers, a signed quantity of type ptrdiff_t for which the
right format is %td; this patch makes this test use that format.
Tested for 32-bit x86.
* nss/tst-nss-test1.c (do_test): Use %td printf format for pointer
difference, not %ju.
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This patch avoids warnings for unused results of setuid and setgid in
nscd/connections.c using an ignore_value macro along the lines
suggested by Paul in
<https://sourceware.org/ml/libc-alpha/2014-11/msg00733.html>.
Tested for x86_64.
* include/libc-internal.h (ignore_value): New macro.
* nscd/connections.c (restart): Wrap calls to setuid and setgid
with ignore_value.
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This patch fixes
../sysdeps/mips/__longjmp.c:27:1: warning: function declaration isn't a prototype [-Wstrict-prototypes]
which arose I think from the MIPS16 changes (renaming the function to
____longjmp with an alias __longjmp, so a prior header prototype for
__longjmp no longer sufficed to prevent a warning). I've made the
function use a prototype definition, which is what we want for all
function definitions in glibc anyway.
Tested for MIPS.
* sysdeps/mips/__longjmp.c (____longjmp): Use prototype
definition.
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This patch fixes "../sysdeps/nptl/pthread.h:670:26: warning:
initialization discards 'volatile' qualifier from pointer target type"
arising when building nptl/tst-cancel-self-cancelstate.c. The problem
is passing a volatile int * to a macro expecting void *; the patch
adds an explicit cast.
Tested for x86_64.
* nptl/tst-cancel-self-cancelstate.c (do_test): Cast argument of
pthread_cleanup_push to void *.
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This patch fixes a warning
../include/features.h:328:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
seen when building for ARM. This warning comes from libc-do-syscall.S
being built for nscd: the nscd build uses _FORTIFY_SOURCE, while .S
files aren't built with -O, and the combination produces a warning.
As _FORTIFY_SOURCE doesn't do anything for .S files, undefining it in
libc-do-syscall.S seems the simplest solution.
Tested for ARM.
* sysdeps/unix/sysv/linux/arm/libc-do-syscall.S (_FORTIFY_SOURCE):
Undefine.
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This patch fixes bugs in ldbl-128ibm frexpl for 32-bit systems shown
up by warnings:
../sysdeps/ieee754/ldbl-128ibm/s_frexpl.c:82:4: warning: left shift count >= width of type
../sysdeps/ieee754/ldbl-128ibm/s_frexpl.c:129:5: warning: left shift count >= width of type
This did in fact show up in test-ldouble.out (alongside all the other
problems there ... maybe we should again consider running the libm
tests at finer granularity from the makefiles) as already covered by
the testsuite after the previous patch that fixed these bugs for
64-bit systems. The fix is simply using 1LL instead of 1L when
shifting by 52.
Tested for powerpc32 (soft float).
[BZ #16619]
[BZ #16740]
* sysdeps/ieee754/ldbl-128ibm/s_frexpl.c (__frexpl): Use 1LL << 52
instead of 1L << 52.
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This patch fixes "set but not used" warnings in the tests
libio/bug-rewind.c and libio/bug-rewind2.c by checking the return
values from fwscanf and making the tests fail if those values aren't
as expected.
Tested for x86_64.
* libio/bug-rewind.c (do_test): Check fwscanf return values.
* libio/bug-rewind2.c (do_test): Likewise.
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TEST_IFUNC is only tested in two headers, bench-string.h and
test-string.h, after it gets defined by those headers, and it never
gets undefined.
Thus no defines of TEST_IFUNC are needed, and the *-ifunc.c tests that
just define TEST_IFUNC and include other tests are also redundant, as
is the code to remove $(tests-ifunc) and $(xtests-ifunc) conditionally
from tests and xtests. This patch removes the useless defines and
tests of TEST_IFUNC and the associated useless tests and makefile
code. It thereby fixes a series of warnings
"../string/test-string.h:21:0: warning: "TEST_IFUNC" redefined" where
test-string.h defines TEST_IFUNC to empty, other files define it to 1
and this produces warnings.
Tested for x86_64.
* debug/test-stpcpy_chk-ifunc.c: Remove file.
* debug/test-strcpy_chk-ifunc.c: Likewise.
* wcsmbs/test-wcschr-ifunc.c: Likewise.
* wcsmbs/test-wcscmp-ifunc.c: Likewise.
* wcsmbs/test-wcscpy-ifunc.c: Likewise.
* wcsmbs/test-wcslen-ifunc.c: Likewise.
* wcsmbs/test-wcsrchr-ifunc.c: Likewise.
* wcsmbs/test-wmemcmp-ifunc.c: Likewise.
* Rules [$(multi-arch) = no] (tests): Do not filter out
$(tests-ifunc).
[$(multi-arch) = no] (xtests): Do not filter out $(xtests-ifunc).
* debug/Makefile (tests-ifunc): Remove variable.
(tests): Do not add $(tests-ifunc).
* wcsmbs/Makefile (tests-ifunc): Remove variable.
(tests): Do not add $(tests-ifunc).
* benchtests/bench-string.h (TEST_IFUNC): Remove macro.
[TEST_IFUNC]: Remove conditionals.
* string/test-string.h (TEST_IFUNC): Remove macro.
[TEST_IFUNC]: Remove conditionals.
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string/test-strchr.c is used for both wide and narrow string testing,
but produces a series of warnings for wide string testing because of
hardcoded use of narrow characters in the function check1. This patch
fixes that function to use macros abstracting away the wide / narrow
string choice, adding a new such macro to handle the string and
character constants.
Tested for x86_64.
* string/test-strchr.c [!WIDE] (L): New macro.
[WIDE] (L): Likewise.
(check1): Use CHAR instead of char. Use L on string and character
constants.
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On powerpc, atomic_exchange_and_add is implemented without any
barriers. This patchs adds the missing instruction and memory barrier
for acquire and release semanthics.
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* nptl/tpp.c (__init_sched_fifo_prio, __pthread_tpp_change_priority):
Change synchronization of __sched_fifo_min_prio and
__sched_fifo_max_prio.
* nptl/pthread_mutexattr_getprioceiling.c
(pthread_mutexattr_getprioceiling): Likewise.
* nptl/pthread_mutexattr_setprioceiling.c
(pthread_mutexattr_setprioceiling): Likewise.
* nptl/pthread_mutex_init.c (__pthread_mutex_init): Likewise.
* nptl/pthread_mutex_setprioceiling.c (pthread_mutex_setprioceiling):
Likewise.
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This patch fixes a "set but not used" warning in setjmp/jmpbug.c. A
variable is used only to store the result of alloca. A cast to void
is added to avoid the warning, and the variable is made volatile to
ensure the call to alloca isn't optimized away for being unused.
Tested for x86_64.
* setjmp/jmpbug.c (test): Make foo volatile and cast it to
void.
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This patch fixes warnings of the form "tst-printf-round.c:202:17:
warning: passing argument 3 of 'test_hex_in_one_mode' discards 'const'
qualifier from pointer target type", by adding an extra const to that
argument (so that after array-to-pointer conversion it's const char
*const *).
Tested for x86_64.
* stdio-common/tst-printf-round.c (test_hex_in_one_mode): Make
third argument const.
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* posix/fnmatch_loop.c (FCT): Use a scalar not a one-item array.
This works around a bug with x86-64 GCC 4.9.2 and earlier
where 'gcc -O2 -Wmaybe-uninitialized' incorrectly complains
"../locale/weightwc.h:93:7: warning: '*((void *)&str+4)' may be
used uninitialized in this function [-Wmaybe-uninitialized]".
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This patch fixes a "set but not used" warning in posix/bug-regex31.c.
A variable res stored an indication of whether the test behaved as
expected, but was then ignored and the test returned 0 unconditionally
(as an mtrace test, the auxiliary test for leaks could still have
failed if that bug was present). This patch makes the test return
res.
Tested for x86_64.
* posix/bug-regex31.c (main): Return RES not 0.
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Fix a typo in the inline assembly.
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This tripped up some analysis I was doing.
This patch is the straightforward fix.
I see no regressions on a "make check" using ENTRY and END.
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perror, an ISO C function, uses fileno, which is not an ISO C
function. This patch makes it use __fileno instead. (The nearby call
to fdopen is not a problem because that's #defined to _IO_new_fdopen.)
Tested for x86_64 (testsuite, and that installed stripped shared
libraries are unchanged by this patch).
[BZ #17633]
* stdio-common/perror.c (perror): Call __fileno instead of fileno.
* conform/Makefile (test-xfail-ISO/stdio.h/linknamespace): Remove
variable.
(test-xfail-ISO99/stdio.h/linknamespace): Likewise.
(test-xfail-ISO11/stdio.h/linknamespace): Likewise.
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