Merge up to r13-7610-gf1d4b4f918a9c5b25a82b7bfccb08aa5e647f41c (27th July 2021)
This is the GCC 13.2.0 release except for the follow-up commit "Bump BASE-VER"
which sets the version to 13.2.1 to denote post-release branch development.
Disable AC_PROG_CXX and consequently a libstdc++ dependency for libffi,
introduced with upstream libffi commit 7d698125b1f0 ("Use the proper C++
compiler to run C++ tests"). This is only needed for the libffi test
suite, which we don't have to support in the GCC tree, as libffi is
maintained as a separate project. The dependency causes a build failure
with the `powerpc64le-linux-gnu' target due to a circular dependency:
make[1]: Circular configure-target-libffi <- maybe-all-target-libstdc++-v3 dependency dropped.
make[1]: *** [configure-target-libffi] Error 1
make: *** [all] Error 2
due to a libgomp dependency for libstdc++ and then a libffi dependency
for libgomp, introduced with commit 998eb38b26 ("Use functional
parameters for data mappings in OpenACC child functions").
/
* Makefile.def (lang_env_dependencies): Disable `cxx' dependency
for `libffi'.
* Makefile.in: Regenerate.
libffi/
* configure.ac: Disable AC_PROG_CXX.
* configure: Regenerate.
* Makefile.in: Regenerate.
* include/Makefile.in: Regenerate.
* man/Makefile.in: Regenerate.
* testsuite/Makefile.in: Regenerate.
If there is a homogeneous struct with float128 members, they should be
copied to vector register save area. The current code incorrectly copies
only the value of the first member, not increasing the pointer with each
iteration. Fix this.
Merged from upstream libffi commit: 464b4b66e3cf3b5489e730c1466ee1bf825560e0
2023-05-03 Dan Horák <dan@danny.cz>
libffi/
PR libffi/109447
* src/powerpc/ffi_linux64.c (ffi_prep_args64): Update arg.f128 pointer.
(cherry picked from commit 043550bcee)
For several Darwin linker versions, the link paths are first traversed
looking for shared libraries, and then again looking for archives.
We want the paths to be searched for both shared and archives in order
so that we will find the non-shared libffi in the testsuite (otherwise
the installed version in the system will be found instead).
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
libffi/ChangeLog:
* testsuite/lib/libffi.exp: Search for both shared and archive
in each path in turn.
Add the patch that fixes i686 Darwin build.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
libffi/ChangeLog:
* LOCAL_PATCHES: Add patch to fix i686 darwin build.
This addresses a number of issues in the X86 Darwin 32b port for libffi.
1. The pic symbol stubs are weak definitions; the correct section placement
for these depends on the linker version in use. We do not have access
to that information, but we can use the target OS version (assumes that
the user has installed the latest version of xcode available).
When a coalesced section is in use (OS versions earlier than Darwin12 /
OSX 10.8), its name must differ from __TEXT,__text since otherwise that
would correspond to altering the attributes of the .text section (which
produces a diagnostic from the assembler).
Here we use __TEXT, __textcoal_nt for this which is what GCC emits for
these stubs.
For later versions than Darwin 12 (OS X 10.8) we can place the stubs in
the .text section (if we do not we get a diagnostic from clang -cc1as
saying that the use of coalesced sections for this is deprecated).
2. The EH frame is specified manually, since there is no support for .cfi_
directives in 'cctools' assemblers. The implementation needs to provide
offsets for CFA advance, code size and to the CIE as signed values
rather than relocations. However the cctools assembler will produce a
relocation for expressions like ' .long Lxx-Lyy' which then leads to a
link-time error. We correct this by forming the offset values using
' .set' directives and then assigning the results of them.
3. The register numbering used by m32 X86 Darwin EH frames is not the same
as the DWARF debug numbering (the Frame and Stack pointer numbers are
swapped).
4. The FDE address encoding used by the system tools is '0x10' (PCrel + abs)
where the value provided was PCrel + sdata4.
5. GCC does not use compact unwind at present, and it was not implemented
until Darwin10 / OSX 10.6. There were some issues with function location
in 10.6 so that the solution here suppresses emitting the compact unwind
section until Darwin11 / OSX 10.7.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
libffi/ChangeLog:
* src/x86/sysv.S (COMDAT): Amend section use for Darwin, accounting
cases where coalesced is needed. (eh_frame): Rework to avoid relocs
that cause builf fails on earlier Darwin. Adjust register numbers
to account for X86 m32 Darwin differences between EH and debug.
This change adds the configury bits to activate the build of
shared libs on VxWorks ports configured with --enable-shared,
for libraries variants where this is generally supported (rtp,
code model !large - currently not compatible with -fPIC).
Set lt_cv_deplibs_check_method in libtool.m4, so the build of
libraries know how to establish dependencies. This is useful in
configurations such as aarch64 where proper support of LSE relies
on accurate dependency information between libstdc++ and libgcc_s
to begin with.
Regenerate configure scripts to reflect libtool.m4 change.
2022-10-09 Olivier Hainque <hainque@adacore.com>
* libtool.m4 (*vxworks*): When enable_shared, set dynamic_linker
and friends for rtp !large. Assume the linker has the required
abilities and set lt_cv_deplibs_check_method.
gcc/
* config.gcc (*vxworks*): Add t-slibgcc fragment
if enable_shared.
libgcc/
* config.host (*vxworks*): When enable_shared, add
libgcc and crtstuff "shared" fragments for rtp except
large code model.
(aarch64*-wrs-vxworks7*): Remove t-slibgcc-libgcc from
the list of fragments.
2022-10-09 Olivier Hainque <hainque@adacore.com>
gcc/
* configure: Regenerate.
libatomic/
* configure: Regenerate.
libbacktrace/
* configure: Regenerate.
libcc1/
* configure: Regenerate.
libffi/
* configure: Regenerate.
libgfortran/
* configure: Regenerate.
libgomp/
* configure: Regenerate.
libitm/
* configure: Regenerate.
libobjc/
* configure: Regenerate.
liboffloadmic/
* configure: Regenerate.
liboffloadmic/
* plugin/configure: Regenerate.
libphobos/
* configure: Regenerate.
libquadmath/
* configure: Regenerate.
libsanitizer/
* configure: Regenerate.
libssp/
* configure: Regenerate.
libstdc++-v3/
* configure: Regenerate.
libvtv/
* configure: Regenerate.
lto-plugin/
* configure: Regenerate.
zlib/
* configure: Regenerate.
The libffi 3.4.2 import badly broke Solaris/x86 bootstrap with the native
assembler:
Assembler:
"/vol/gcc/src/hg/master/local/libffi/src/x86/win64.S", line 88 :
Illegal mnemonic
Near line: ".macro epilogue"
"/vol/gcc/src/hg/master/local/libffi/src/x86/win64.S", line 88 : Syntax
error
Near line: ".macro epilogue"
"/vol/gcc/src/hg/master/local/libffi/src/x86/win64.S", line 95 :
Illegal mnemonic
Near line: ".endm"
"/vol/gcc/src/hg/master/local/libffi/src/x86/win64.S", line 95 : Syntax
error
Near line: ".endm"
"/vol/gcc/src/hg/master/local/libffi/src/x86/win64.S", line 100 :
Illegal mnemonic
Near line: " epilogue"
"/vol/gcc/src/hg/master/local/libffi/src/x86/win64.S", line 100 :
Syntax error
Near line: "epilogue"
Solaris as doesn't support .macro/.endm.
Fixed by using #define instead of the unportable .macro.
Tested on i386-pc-solaris2.11 and x86_64-pc-linux-gnu.
The bug has been reported upstream
(https://github.com/libffi/libffi/issues/665); a corresponding pull
request is also pending (https://github.com/libffi/libffi/pull/669).
2021-10-21 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
libffi:
PR libffi/102874
* src/x86/win64.S (epilogue): Use #define instead of .macro.
Add
commit 90205f67e4
Author: Segher Boessenkool <segher@kernel.crashing.org>
Date: Mon Oct 25 23:29:26 2021 +0000
rs6000: Fix bootstrap (libffi)
This fixes bootstrap for the current problems building libffi.
to LOCAL_PATCHES.
* LOCAL_PATCHES: Add commit 90454a9008.
This fixes bootstrap for the current problems building libffi.
2021-10-25 Segher Boessenkool <segher@kernel.crashing.org>
libffi/
* src/powerpc/linux64.S: Enable AltiVec insns.
* src/powerpc/linux64_closure.S: Ditto.
* testsuite/lib/libffi.exp (load_gcc_lib): Load library from GCC
testsuite.
Load target-supports.exp and target-supports-dg.exp.
(libffi-init): Use libraries in GCC build tree.
(libffi_target_compile): Link with -shared-libgcc -lstdc++ for
C++ sources.
Add scripts for syncing with libffi upstream:
1. Clone libffi repo.
2. Checkout the specific commit.
3. Remove the unused files.
4. Add new files and remove old files if needed.
* HOWTO_MERGE: New file.
* autogen.sh: Likewise.
* merge.sh: Likewise.
for some instructions, MIPS r6 uses different encoding other than
the previous releases.
1. mips/n32.S disable .set mips4: since it casuses old insn encoding
is used.
https://github.com/libffi/libffi/pull/396 has been accepted as:
94c102aa69b04337f63498e0e6551fcdce549ae5
2. mips/ffi.c: the encoding for JR is hardcoded: we need to use
different value for r6 and pre-r6.
https://github.com/libffi/libffi/pull/401 has been accpeted as:
746dbe3a6a79a41931c03b51df2972be4d5e5028
libffi/
PR libffi/83636
* src/mips/n32.S: disable .set mips4
* src/mips/ffi.c: use different JR encoding for r6.
The upstream libffi has
commit cb8474368cdef3207638d047bd6c707ad8fcb339
Author: hjl-tools <hjl.tools@gmail.com>
Date: Wed Dec 2 12:52:12 2020 -0800
libffi/x86: Always check __x86_64__ for x32 hosts (#601) (#602)
Since for x86_64-*x32 and x86_64-x32-* hosts, -m32 generates ia32 codes.
We should always check __x86_64__ for x32 hosts.
Since for gnux32 hosts, -m32 generates i386 codes, always check __x86_64__
for x86 hosts.
PR libffi/101336
* configure.host: Always check __x86_64__ for x86 hosts.
As the following testcase shows, libffi didn't handle properly
classify_arguments of structures at byte offsets not divisible by
UNITS_PER_WORD. The following patch adjusts it to match what
config/i386/ classify_argument does for that and also ports the
PR38781 fix there (the second chunk).
This has been committed to upstream libffi already:
5651bea284
2021-06-16 Jakub Jelinek <jakub@redhat.com>
* src/x86/ffi64.c (classify_argument): For FFI_TYPE_STRUCT set words
to number of words needed for type->size + byte_offset bytes rather
than just type->size bytes. Compute pos before the loop and check
total size of the structure.
* testsuite/libffi.call/nested_struct12.c: New test.
The change in major version (and the increment from Darwin19 to 20)
caused libtool tests to fail which resulted in incorrect build settings
for shared libraries.
We take this opportunity to sort out the shared undefined symbols state
rather than propagating the current unsound behaviour into a new rev.
This change means that we default to the case that missing symbols are
considered an error, and if one wants to allow this intentionally, the
confiuration for that case should be set appropriately.
Three existing cases need undefined dynamic lookup:
libitm, where there is already a configuration mechanism to add the
flags.
libcc1, where we add simple configuration to add the flags for Darwin.
libsanitizer, where we can add to the existing extra flags.
libcc1/ChangeLog:
PR target/97865
* Makefile.am: Add dynamic_lookup to LD flags for Darwin.
* configure.ac: Test for Darwin host and set a flag.
* Makefile.in: Regenerate.
* configure: Regenerate.
libitm/ChangeLog:
PR target/97865
* configure.tgt: Add dynamic_lookup to XLDFLAGS for Darwin.
* configure: Regenerate.
libsanitizer/ChangeLog:
PR target/97865
* configure.tgt: Add dynamic_lookup to EXTRA_CXXFLAGS for
Darwin.
* configure: Regenerate.
ChangeLog:
PR target/97865
* libtool.m4: Update handling of Darwin platform link flags
for Darwin20.
gcc/ChangeLog:
PR target/97865
* configure: Regenerate.
libatomic/ChangeLog:
PR target/97865
* configure: Regenerate.
libbacktrace/ChangeLog:
PR target/97865
* configure: Regenerate.
libffi/ChangeLog:
PR target/97865
* configure: Regenerate.
libgfortran/ChangeLog:
PR target/97865
* configure: Regenerate.
libgomp/ChangeLog:
PR target/97865
* configure: Regenerate.
libhsail-rt/ChangeLog:
PR target/97865
* configure: Regenerate.
libobjc/ChangeLog:
PR target/97865
* configure: Regenerate.
libphobos/ChangeLog:
PR target/97865
* configure: Regenerate.
libquadmath/ChangeLog:
PR target/97865
* configure: Regenerate.
libssp/ChangeLog:
PR target/97865
* configure: Regenerate.
libstdc++-v3/ChangeLog:
PR target/97865
* configure: Regenerate.
libvtv/ChangeLog:
PR target/97865
* configure: Regenerate.
zlib/ChangeLog:
PR target/97865
* configure: Regenerate.
Power10 pc-relative code doesn't use or preserve r2 as a TOC pointer.
That means calling between pc-relative and TOC using code can't be
done without intervening linker stubs, and a call from TOC code to
pc-relative code must have a nop after the bl in order to restore r2.
Now the PowerPC libffi assembly code doesn't use r2 except for the
implicit use when making calls back to C, ffi_closure_helper_LINUX64
and ffi_prep_args64. So changing the assembly to interoperate with
pc-relative code without stubs is easily done.
* src/powerpc/linux64.S (ffi_call_LINUX64): Don't emit global
entry when __PCREL__. Call using @notoc. Add nops.
* src/powerpc/linux64_closure.S (ffi_closure_LINUX64): Likewise.
(ffi_go_closure_linux64): Likewise.
Tobias Burnus