Current glibc no longer gives the ucontext_t type the tag struct
ucontext, to conform with POSIX namespace rules. This requires
various linux-unwind.h files in libgcc, that were previously using
struct ucontext, to be fixed to use ucontext_t instead. This is
similar to the removal of the struct siginfo tag from siginfo_t some
years ago.
This patch changes those files to use ucontext_t instead. As the
standard name that should be unconditionally safe, so this is not
restricted to architectures supported by glibc, or conditioned on the
glibc version.
Tested compilation together with current glibc with glibc's
build-many-glibcs.py.
* config/aarch64/linux-unwind.h (aarch64_fallback_frame_state),
config/alpha/linux-unwind.h (alpha_fallback_frame_state),
config/bfin/linux-unwind.h (bfin_fallback_frame_state),
config/i386/linux-unwind.h (x86_64_fallback_frame_state,
x86_fallback_frame_state), config/m68k/linux-unwind.h (struct
uw_ucontext), config/nios2/linux-unwind.h (struct nios2_ucontext),
config/pa/linux-unwind.h (pa32_fallback_frame_state),
config/riscv/linux-unwind.h (riscv_fallback_frame_state),
config/sh/linux-unwind.h (sh_fallback_frame_state),
config/tilepro/linux-unwind.h (tile_fallback_frame_state),
config/xtensa/linux-unwind.h (xtensa_fallback_frame_state): Use
ucontext_t instead of struct ucontext.
From-SVN: r249731
* gcc.target/i386/cmov7.c (sgn): Renamed to ...
(foo): ... this. Change constants such that it isn't matched
as __builtin_copysign, yet tests the combiner the same.
From-SVN: r249729
2017-06-28 Martin Liska <mliska@suse.cz>
PR sanitizer/81224
* asan.c (instrument_derefs): Bail out inner references
that are hard register variables.
2017-06-28 Martin Liska <mliska@suse.cz>
PR sanitizer/81224
* gcc.dg/asan/pr81224.c: New test.
From-SVN: r249728
PR target/81175
* config/i386/i386.c (ix86_init_mmx_sse_builtins): Use def_builtin
rather than def_builtin_pure for __builtin_ia32_gatherpf*.
From-SVN: r249727
2017-06-28 Michael Collison <michael.collison@arm.com>
PR target/68535
* config/arm/arm.c (gen_ldm_seq): Remove last unnecessary
set of base_reg
(arm_gen_movmemqi): Removed unused variable 'i'.
Convert 'for' loop into 'while' loop.
(arm_expand_prologue): Remove last unnecessary set of insn.
(thumb_pop): Remove unused variable 'pushed_words'.
(thumb_exit): Remove last unnecessary set of regs_to_pop.
From-SVN: r249721
For hotpatching it might be required to introduce new .text parts
while keep using the existing .data/.bss sections. To make this work
the backend needs to be prevented from using relative addressing
between code and data.
This only works when already building PIC
since the addressing will then be handling via GOT.
gcc/testsuite/ChangeLog:
2017-06-28 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* gcc.target/s390/nodatarel-1.c: New test.
gcc/ChangeLog:
2017-06-28 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/predicates.md: Use s390_rel_address_ok_p.
* config/s390/s390-protos.h: Add prototype of
s390_rel_address_ok_p.
* config/s390/s390.c (s390_got_symbol): New function.
(s390_rel_address_ok_p): New function.
(legitimize_pic_address): Use s390_rel_address_ok_p.
(s390_load_got): Use s390_got_symbol.
(s390_option_override): Issue error if
-mno-pic-data-is-text-relative is used without -fpic/-fPIC.
* config/s390/s390.h (TARGET_DEFAULT_PIC_DATA_IS_TEXT_RELATIVE):
New macro.
* config/s390/s390.opt: New option mpic-data-is-text-relative.
From-SVN: r249720
2017-06-27 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR fortran/80164
* trans-stmt.c (gfc_trans_call): If no code expr, use code->loc
as warning/error locus.
* gfortran.dg/array_temporaries_4.f90: New test.
From-SVN: r249718
On AIX:
* mmap does not allow to map an already mapped range,
* mmap range start at 0x30000000 for 32 bits processes,
* mmap range start at 0x70000000_00000000 for 64 bits processes
This is adapted from change 37845.
Issue golang/go#19200
Reviewed-on: https://go-review.googlesource.com/46772
From-SVN: r249713
Fixes required now that we #include <linux/ptrace.h> in sysinfo.c.
Patch by Andreas Krebbel.
Reviewed-on: https://go-review.googlesource.com/46839
From-SVN: r249712
PR libstdc++/80187
* include/std/variant (variant::variant, variant::~variant,
variant::operator=): Implement triviality forwarding for four
special member functions.
* testsuite/20_util/variant/compile.cc: Tests.
From-SVN: r249706
genmultilib computes combination_space, a list of all combinations of
options in MULTILIB_OPTIONS that might have multilibs built for them
(some of which may end up not having multilibs built for them, and
some of those may end up being mapped to other multilibs with
MULTILIB_REUSE). It is then used to validate the right hand part of
MULTILIB_REUSE rules, checking with expr that combination_space
matches a basic regular expression derived from that right hand part.
There are two problems with this approach to validation:
* It requires that right hand part to have options in the same order
as in MULTILIB_OPTIONS, in contradiction to the documentation of
MULTILIB_REUSE saying that order does not matter there.
* combination_space can be so large that the expr call fails with an
E2BIG error. I have a local ARM configuration with 40 multilibs but
3840 combinations of options from MULTILIB_OPTIONS (so 3839 listed
in combination_space, since it doesn't list the default multilib)
and 996 MULTILIB_REUSE rules. This generates a combination_space
string longer than the Linux kernel's MAX_ARG_STRLEN (PAGE_SIZE *
32, the limit on the length of a single argv string), so that expr
cannot be run.
This patch changes the validation approach to generate a much shorter
extended regular expression for any sequence of multilib options in
any order, and uses that for the validation instead.
Tested with a build for arm-none-eabi --with-multilib-list=aprofile
(as a configuration that uses MULTILIB_REUSE).
* genmultilib (combination_space): Remove variable.
Validate reuse rules against regular expression for any sequence
of multilib options in any order.
From-SVN: r249703
* cp-tree.h (CLASSTYPE_DESTRUCTORS): Rename to ...
(CLASSTYPE_DESTRUCTOR): ... this.
* class.c (accessible_nvdtor_p)
maybe_warn_about_overly_private_class,
add_implicitly_declared_members,
clone_constructors_and_destructors, type_has_virtual_destructor):
Adjust for CLASSTYPE_DESTRUCTOR.
(deduce_noexcept_on_destructors): Absorb into ...
(check_bases_and_members): ... here.
* except.c (dtor_nothrow): Adjust for CLASSTYPE_DESTRUCTOR.
* init.c (build_delete): Likewise.
* parser.c (cp_parser_lookup_name): Likewise.
* pt.c (check_explicit_specialization): Likewise.
* rtti.c (emit_support_tinfos): Likewise.
* search.c (lookup_fnfields_idx_nolazy): Likewise.
(--This line, and those below, will be ignored--
M cp/cp-tree.h
M cp/search.c
M cp/init.c
M cp/class.c
M cp/rtti.c
M cp/except.c
M cp/ChangeLog
M cp/pt.c
M cp/parser.c
From-SVN: r249701
2017-06-27 Tom de Vries <tom@codesourcery.com>
* plugin/plugin-nvptx.c (notify_var): New function.
(nvptx_exec): Use notify_var for GOMP_OPENACC_DIM.
From-SVN: r249695
2017-06-27 Tom de Vries <tom@codesourcery.com>
* env.c (parse_unsigned_long_1): Factor out of ...
(parse_unsigned_long): ... here.
(parse_int_1): Factor out of ...
(parse_int): ... here.
(parse_int_secure): New function.
(initialize_env): Use parse_int_secure for GOMP_DEBUG.
* secure_getenv.h: Factor out of ...
* plugin/plugin-hsa.c: ... here.
* testsuite/libgomp.oacc-c-c++-common/gomp-debug-env.c: New test.
From-SVN: r249694
2017-06-27 Jerome Lambourg <lambourg@adacore.com>
* config/i386/vxworks.h (ASM_SPEC): Remove definition. No target
specific need, just fallback on defaults.
(ASM_OUTPUT_ALIGNED_BSS): Add #undef before #define.
From-SVN: r249691
2017-06-27 Jerome Lambourg <lambourg@adacore.com>
Olivier Hainque <hainque@adacore.com>
* config/i386/vxworks.h (DBX_REGISTER_NUMBER): Pick distinct
map for 64bits.
(TARGET_OS_CPP_BUILTINS): builtin_define CPU to X86_64 for 64bit
targets. Pick a default if no particular attempt applied.
(STACK_CHECK_PROTECT): Double for 64bit targets, which have
larger contexts.
Co-Authored-By: Olivier Hainque <hainque@adacore.com>
From-SVN: r249690
2017-06-27 Jerome Lambourg <lambourg@adacore.com>
Olivier Hainque <hainque@adacore.com>
* config/vxworks.h (VXWORKS_LIB_SPEC): Incorporate ...
(TLS_SYM): New local macro, forcing reference to __tls__ on
link command lines for VxWorks 7 RTPs, triggering initialization
of tlsLib.
(VXWORKS_HAVE_TLS): New macro. State whether the target VxWorks
OS features TLS support, true for RTPs on VxWorks 7.
* config/vxworks.c (vxworks_override_options): Setup emutls
accordingly.
Co-Authored-By: Olivier Hainque <hainque@adacore.com>
From-SVN: r249684
2017-06-27 Jerome Lambourg <lambourg@adacore.com>
* config/vxworks.h (VXWORKS_LIBS_RTP): Alternative definition for
64bit configurations.
(PTR_DIFF_TYPE): Alternative definition for TARGET_LP64.
(SIZE_TYPE): Likewise.
* config/vxworks.c (vxworks_emutls_var_fields): Use
long_unsigned_type_node instead of unsigned_type_node as the offset
field type, which is "pointer" mode in emutls.c.
From-SVN: r249681
2017-06-27 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
* value-prof.c (free_hist): Remove call to memset and the enclosing if
condition.
From-SVN: r249675
Copy all the misc/cgo files from the gc toolchain into libgo/misc.
These will be used for testing purposes by later changes to the
gotools directory.
Reviewed-on: https://go-review.googlesource.com/46721
From-SVN: r249674
