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This fixes the conform test for the sigaction.h header and makes it match
all the other arches.
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The semi-recent SYSCALL_CANCEL inclusion broke hppa due to the sysdep.h
headers not including the unix/sysdep.h headers. Rework the includes so
we match the other ports:
* hppa/sysdep.h:
- Do not include sys/syscall.h as the unix sysdep.h headers do it.
- Do not include config.h as libc-symbols.h does it, and it has no
#ifdef multiple-include protection, and it breaks when some files
do things like #undef __OPTIMIZE__.
* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h:
- Drop the generic/sysdep.h as the unix sysdep.h headers include it.
* sysdeps/unix/sysv/linux/hppa/sysdep.h:
- Change to the unix & core hppa sysdep header stacks.
- Undef a few defines that the core headers already set up for us.
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The semi-recent SYSCALL_CANCEL macro imposes a slight nuance on the
implementation of INLINE_SYSCALL: the nr argument cannot be expanded
directly but must be passed on to another macro which may expand it.
Most arches don't notice because INLINE_SYSCALL is defined in terms
of INTERNAL_SYSCALL which has the additional layer of expansion, but
on hppa, it was attempting to expand it directly. That causes build
errors like so:
../sysdeps/unix/sysv/linux/sigsuspend.c: In function '__sigsuspend':
../sysdeps/unix/sysv/linux/sigsuspend.c:31:62: error:
implicit declaration of function 'LOAD_ARGS___SYSCALL_NARGS'
../sysdeps/unix/sysv/linux/sigsuspend.c:31:304: error:
called object 'LOAD_ARGS___SYSCALL_NARGS(set, 8)' is not a function
So rewrite hppa's INLINE_SYSCALL to use INTERNAL_SYSCALL like other
arches do. This is also a nice clean up as the two macros had quite
a bit of duplicated logic.
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On x86, linker in binutils 2.26 and newer consolidates R_*_JUMP_SLOT with
R_*_GLOB_DAT relocation against the same symbol. This patch extends
local PLT reference check to support alternate relocations.
[BZ #18078]
* scripts/check-localplt.awk: Support alternate relocations.
* scripts/localplt.awk: Also check relocations in DT_RELA/DT_REL
sections.
* sysdeps/unix/sysv/linux/i386/localplt.data: Mark free and
malloc entries with + REL R_386_GLOB_DAT.
* sysdeps/x86_64/localplt.data: New file.
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[BZ #18731]
* sysdeps/x86_64/fpu/math-tests-arch.h: Added AVX runtime check.
* sysdeps/x86_64/fpu/test-double-vlen4.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8.c: Likewise.
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This file was updated with an educated guess as to the symbols needed,
but on ia64, we don't have __tls_get_addr calls, so drop it from the
list.
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Way back in 2005 the atomic_exchange_and_add function was cleaned up to
avoid the explicit size checking and instead let gcc handle things itself.
Unfortunately that change ended up leaving beyond a cast to int, even when
the incoming value was a long. This has flown under the radar for a long
time due to the function not being heavily used in the tree (especially as
a full 64bit field), but a recent change to semaphores made some nptl tests
fail reliably. This is due to the code packing two 32bit values into one
64bit variable (where the high 32bits contained the number of waiters), and
then the whole variable being atomically updated between threads. On ia64,
that meant we never atomically updated the count, so sometimes the sem_post
would not wake up the waiters.
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This define made more sense in the pre-sanitized kernel headers days,
but since we require kernel versions that are sanitized, we don't need
this hack anymore.
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and elf/tst-protected1b for Nios II.
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in setcontext/swapcontext.
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AVX512 IFUNC implementations, implementations of wrappers to
AVX2 versions and KNL expf implementation fixed.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S: Fixed AVX512 IFUNC.
* sysdeps/x86_64/fpu/multiarch/svml_d_exp8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_log8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_pow8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sin8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_d_sincos8_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_cosf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_powf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sincosf16_core.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_sinf16_core.S: Likewise.
* sysdeps/x86_64/fpu/svml_d_wrapper_impl.h: Fixed wrappers to AVX2.
* sysdeps/x86_64/fpu/svml_s_wrapper_impl.h: Likewise.
* sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S: Fixed KNL
implementation.
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Fixes elf/tst-protected1a and elf/tst-protected1b tests.
Depends on a gcc patch that makes protected visibility data non-local:
https://gcc.gnu.org/ml/gcc-patches/2015-07/msg01871.html
and on a binutils patch so R_*_GLOB_DAT relocs are used for it:
https://sourceware.org/ml/binutils/2015-07/msg00247.html
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Fixes elf/tst-protected1a and elf/tst-protected1b tests.
Depends on a gcc patch that makes protected visibility data non-local:
https://gcc.gnu.org/ml/gcc-patches/2015-07/msg01871.html
and on a binutils patch so R_*_GLOB_DAT relocs are used for it:
https://sourceware.org/ml/binutils/2015-07/msg00246.html
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Since ia64 is little endian, sa_flags has to come before the padding
when splitting it from 64bits to 32bits.
Reported-by: Joseph Myers <joseph@codesourcery.com>
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These two fields have dedicated types, so change the ia64 header to match
all the other arches. This fixes the conform test for msg.h.
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This fixes the conform test for the stat.h header and makes it match
all the other arches.
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This fixes the conform test for the sigaction.h header and makes it match
all the other arches.
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This fixes the conform test for the siginfo.h header and makes it match
all the other arches.
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It turns out tile suffered from the same problem as S390. However,
disabling CFI information for the __startcontext on tile was not
sufficient to fix the problem; I think the backtracer will just
blindly try to follow the link register (lr) in that case.
Instead, the change adds a cfi_undefined directive for "lr"
and then arranges to call __startcontext directly when the new
context starts, rather than just synthesizing a return to it.
In addition to being a bit easier now to understand the control
flow, this also allows the cfi_undefined directive to be placed in
a way that causes it to be in force at the address that the "lr"
from the called function points to.
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Commit a059d359d86130b5fa74e04a978c8523a0293f77 changed the sigaction
struct to pass conform tests, but it ended up also changing the ABI for
32 bit builds. For 64 bit builds, changing the long to two ints works,
but for 32 bit builds, it inserts 4 extra bytes. This leads to many
packages randomly failing like bash that spews things like:
configure: line 471: wait_for: No record of process 0
Bracket the new member by a wordsize check to fix the ABI for 32bit.
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X86 struct siginfo in kernel 3.19 has been changed by
commit ee1b58d36aa1b5a79eaba11f5c3633c88231da83
Author: Qiaowei Ren <qiaowei.ren@intel.com>
Date: Fri Nov 14 07:18:19 2014 -0800
mpx: Extend siginfo structure to include bound violation information
This patch adds new fields about bound violation into siginfo
structure. si_lower and si_upper are respectively lower bound
and upper bound when bound violation is caused.
This patch updates x86 struct siginfo to enable GDB with MPX support.
[BZ #18696]
* sysdeps/unix/sysv/linux/x86/bits/siginfo.h (_sigfault): Add
si_addr_bnd.
(si_lower): New.
(si_upper): Likewise.
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* sysdeps/sparc/fpu/libm-test-ulps: Regenerated.
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This patch optimizes strstr function for power >= 7 systems. Performance
gain is obtained using aligned memory access and usage of cmpb
instruction for quicker comparison. The average improvement of this
optimization is ~40%. Tested on ppc64 and ppc64le.
2015-07-16 Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add strstr().
* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
* sysdeps/powerpc/powerpc64/power7/strstr.S: New File.
* sysdeps/powerpc/powerpc64/multiarch/strstr-power7.S: New File.
* sysdeps/powerpc/powerpc64/multiarch/strstr-ppc64.c: New File.
* sysdeps/powerpc/powerpc64/multiarch/strstr.c: New File.
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This symbol is only used by DL_UNMAP which in turn is only used by
_dl_close_worker in dl-close.c, and _dl_close_worker itself is marked
hidden as it is only used by the ldso. That means _dl_unmap should
be marked hidden. Without this, the elf/check-localplt test fails.
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This symbol is defined in the ldso, and is used both there and libc.so.
There is no hidden symbol for it though which leads to relocations in
the ldso and the elf/check-localplt test failing. Add a hidden def for
rtld to fix all of that.
This function/file is only used by hppa & ia64, so no testing is needed
for other arches.
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* sysdeps/sparc/nptl/pthread_barrier_init.c: Include
futex-intenal.h
* sysdeps/sparc/sparc32/sparcv9/Makefile (nscd): Add cpu_relax.
* sysdeps/sparc/sparc64/Makefile: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h (atomic_spin_nop):
Remove space from macro define.
* sysdeps/sparc/sparc64/bits/atomic.h (atomic_spin_nop): Likewise.
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These tests were skipped by the use-test-skeleton conversion done in
commit 29955b5d because they were reused in other tests via the #include
directive, and so deemed worth an inspection before they were modified.
This has now been done.
ChangeLog:
2015-07-09 Arjun Shankar <arjun.is@lostca.se>
* elf/tst-leaks1.c (main): Converted to ...
(do_test): ... this.
(TEST_FUNCTION): New macro.
Include test-skeleton.c.
* localedata/tst-langinfo.c (main): Converted to ...
(do_test): ... this.
(TEST_FUNCTION): New macro.
Include test-skeleton.c.
* math/test-fpucw.c (main): Converted to ...
(do_test): ... this.
(TEST_FUNCTION): New macro.
Include test-skeleton.c.
* math/test-tgmath.c (main): Converted to ...
(do_test): ... this.
(TEST_FUNCTION): New macro.
Include test-skeleton.c.
* math/test-tgmath2.c (main): Converted to ...
(do_test): ... this.
(TEST_FUNCTION): New macro.
Include test-skeleton.c.
* setjmp/tst-setjmp.c (main): Converted to ...
(do_test): ... this.
(TEST_FUNCTION): New macro.
Include test-skeleton.c.
* stdio-common/tst-sscanf.c (main): Converted to ...
(do_test): ... this.
(TEST_FUNCTION): New macro.
Include test-skeleton.c.
* sysdeps/x86_64/tst-audit6.c (main): Converted to ...
(do_test): ... this.
(TEST_FUNCTION): New macro.
Include test-skeleton.c.
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The testcase stdlib/tst-makecontext fails on i686 because
_Unwind_Backtrace from libgcc produces a segmentation fault if it was
called within a context created by makecontext. See Bug 18635.
ChangeLog:
* sysdeps/i386/i686/Makefile (test-xfail-tst-makecontext):
New variable.
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I've regenerated the ulps for s390 from scratch.
ChangeLog:
* sysdeps/s390/fpu/libm-test-ulps: Regenerated.
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going via memory.
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for nul bytes which reverts to separate loop when a non-ASCII char is encountered.
Speedup on test-strlen is ~10%, long ASCII strings are processed ~60% faster,
and on random tests it is ~80% better.
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Regenerated from scratch on tilegx.
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This adds new functions for futex operations, starting with wait,
abstimed_wait, reltimed_wait, wake. They add documentation and error
checking according to the current draft of the Linux kernel futex manpage.
Waiting with absolute or relative timeouts is split into separate functions.
This allows for removing a few cases of code duplication in pthreads code,
which uses absolute timeouts; also, it allows us to put platform-specific
code to go from an absolute to a relative timeout into the platform-specific
futex abstractions..
Futex operations that can be canceled are also split out into separate
functions suffixed by "_cancelable".
There are separate versions for both Linux and NaCl; while they currently
differ only slightly, my expectation is that the separate versions of
lowlevellock-futex.h will eventually be merged into futex-internal.h
when we get to move the lll_ functions over to the new futex API.
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If x86-64 assembler doesn't support MPX, we encode bndmov instruction by
hand. When displacement is zero, assembler generates shorter encoding.
This patch improves bndmov encoding with zero displacement so that ld.so
is identical when using assemblers with and without MPX support.
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_resolve): Improve
bndmov encoding with zero displacement.
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We need to save/restore bound registers and add a BND prefix before
branches in _dl_runtime_profile so that bound registers for pointer
pass and return are preserved when LD_AUDIT is used.
[BZ #18134]
* sysdeps/i386/configure.ac: Set HAVE_MPX_SUPPORT.
* sysdeps/i386/configure: Regenerated.
* sysdeps/i386/dl-trampoline.S (PRESERVE_BND_REGS_PREFIX): New.
(_dl_runtime_profile): Save and restore Intel MPX return bound
registers when calling _dl_call_pltexit. Add
PRESERVE_BND_REGS_PREFIX before return.
* sysdeps/i386/link-defines.sym (LRV_BND0_OFFSET): New.
(LRV_BND1_OFFSET): Likewise.
* sysdeps/x86/bits/link.h (La_i86_retval): Add lrv_bnd0 and
lrv_bnd1.
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Fix
typo in bndmov encoding.
* sysdeps/x86_64/dl-trampoline.h: Properly save and restore
Intel MPX bound registers. Add PRESERVE_BND_REGS_PREFIX before
branch instructions to preserve bounds.
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This patch adds the missing fmemopen entry for powerpc64le libc abilist
check file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
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* sysdeps/mach/hurd/mlock.c (mlock): When __get_privileged_ports
returns an error, also try to use host port from __mach_host_self for
the __vm_wire call.
* sysdeps/mach/hurd/munlock.c (munlock): Likewise.
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This is an ABI breaking change, but
typedef int greg_t;
is not a useful definition on aarch64.
greg_t is usually used for defining gregset_t which is used
in mcontext_t. The general registers in mcontext_t can only
be accessed by target specific code and on aarch64 greg_t
is not needed for that so this change is not supposed to break
existing code, just fix the definition.
[BZ #18648]
* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (greg_t): Change the
definition to elf_greg_t.
(Added another BZ entry that was missed in the previous commit).
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Kernel uses int pr_uid, pr_gid, but glibc used unsigned short.
This is an ABI breaking change, but the size and alignment of
the struct and the layout of other members is not changed and
there is no known usage of pr_uid and pr_gid so it is expected
to be safe.
[BZ #18400]
* sysdeps/unix/sysv/linux/aarch64/sys/procfs.h (struct elf_prpsinfo):
Fix pr_uid and pr_gid members.
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