define a X86_32_ASAN_BIT_OFFSET macro that defaults differently on
netbsd/i386 than other x86-32 targets.

fixes PR#56280.

initial merge of GCC 10.3.0.

these three files are not yet finished merging:

gcc/config/rs6000/rs6000.c
libsanitizer/lsan/lsan_allocator.h
libsanitizer/sanitizer_common/sanitizer_platform_limits_po

initial merge of GCC 10.3.0.

these three files are not yet finished merging:

gcc/config/rs6000/rs6000.c
libsanitizer/lsan/lsan_allocator.h
libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h

our current GCC 9 sanitizers are newer than GCC 10's still, so that
may take a little to untease, so it's probable that more than
these 2 will need more changes.

rs6000.c has some changes related to ABI and supported functionality
that need to be merged forward.

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merge GCC 9.3.0.

merge GCC 8.3.0 pass 1. will not compile yet. thare are still
about 25 files with merge issues.

be sure to keep cc1_cpu the CC1*_SPEC.

fixes x86 -mtune=native without killing -cxx-isystem.

first pass at merging GCC 7.4.0. unlikely to compile..

merge GCC 6.4.0. sanitizer stuff is probably busted, but most
other changes merged easily.

docs need to be regenerated with modern versions still.

remove bogus indirect call for profiling (mcount)

canonicalise the netbsd spec functions in NETBSD_SUBTARGET_EXTRA_SPECS:
netbsd_cpp_spec
netbsd_link_spec
netbsd_entry_point
netbsd_endfile_spec

use this in all netbsd targets.

XXX: 3 po

canonicalise the netbsd spec functions in NETBSD_SUBTARGET_EXTRA_SPECS:
netbsd_cpp_spec
netbsd_link_spec
netbsd_entry_point
netbsd_endfile_spec

use this in all netbsd targets.

XXX: 3 ports set this to EXTRA_SPECS instead of SUBTARGET_EXTRA_SPECS.

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revert most of the previous and re-do it to be valid, re-fixing i386 psABI
support with -m32.

don't set PREFERRED_STACK_BOUNDARY_DEFAULT, in particular, don't set it
to 64 (8 bytes) for 64-bit targets, where 16 byte alignment is required.
this fixes GCC 5 and ssh on modern intel cpus, and per

don't set PREFERRED_STACK_BOUNDARY_DEFAULT, in particular, don't set it
to 64 (8 bytes) for 64-bit targets, where 16 byte alignment is required.
this fixes GCC 5 and ssh on modern intel cpus, and perhaps more.

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merge GCC 5.3. round 1. this probably won't work :-)

libsanitizer likely needs to be re-ported, though i've done most of
the updating we'll need i think already.

merge gcc 4.8.2 r206687 (part 2).

Fix GCC to correctly implement the i386 psABI on NetBSD.
This consists of two parts:
- for NetBSD/i386 and NetBSD/AMD64 with -m32, use a default stack
alignment of 23bit as specified by the ABI
- e

Fix GCC to correctly implement the i386 psABI on NetBSD.
This consists of two parts:
- for NetBSD/i386 and NetBSD/AMD64 with -m32, use a default stack
alignment of 23bit as specified by the ABI
- ensure that double and long long variables on the stack are by default
only aligned to 32bit, if there is nothing else in the function
needing a larger stack alignment

The combination ensures that SSE variables on the stack trigger the
realignment logic, but just using double or long long doesn't.

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initial import of GCC 4.5.3 sources. changes since 4.1 are way too numerous
to review, please see http://gcc.gnu.org/gcc-4.5/changes.html (and the 4.2,
4.3 and 4.4 versions, too.)

this includes the

initial import of GCC 4.5.3 sources. changes since 4.1 are way too numerous
to review, please see http://gcc.gnu.org/gcc-4.5/changes.html (and the 4.2,
4.3 and 4.4 versions, too.)

this includes the core, c++, objc and the non java/ada/fortran parts of the
testsuite.

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