Enable /usr/lib32 for o32 binaries on mips64.

Build and install an o32 set of libraries on mips64 suitable for
running o32 binaries via COMPAT_FREEBSD32. Enable COMPAT_FREEBSD32 in
MALTA64.

Reviewe

Enable /usr/lib32 for o32 binaries on mips64.

Build and install an o32 set of libraries on mips64 suitable for
running o32 binaries via COMPAT_FREEBSD32. Enable COMPAT_FREEBSD32 in
MALTA64.

Reviewed by: jmallett, imp
Sponsored by: DARPA / AFRL
Differential Revision: https://reviews.freebsd.org/D9032

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Connect new LLVM-based libgcc_eh & libgcc_s to the build

Compiler-rt and LLVM's libunwind provide a suitable replacement for
libgcc.a, libgcc_eh.a, and libgcc_s.so.

Remove the now-unused LLVM_LIBUN

Connect new LLVM-based libgcc_eh & libgcc_s to the build

Compiler-rt and LLVM's libunwind provide a suitable replacement for
libgcc.a, libgcc_eh.a, and libgcc_s.so.

Remove the now-unused LLVM_LIBUNWIND block from gnu/lib/libgcc.

PR: 213480 [exp-run]
Reviewed by: brooks, ed
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D8189

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Fix packaging /usr/lib{,32}/libgcc_eh{,_p}.a.

Reported by: woodsb02
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

Add full softfloat and hardfloat support for MIPS.

This adds new target architectures for hardfloat:
mipselhf mipshf mips64elhf mips64hf.

Tested in QEMU only.

Sponsored by: DARPA, AFRL
Sponsored b

Add full softfloat and hardfloat support for MIPS.

This adds new target architectures for hardfloat:
mipselhf mipshf mips64elhf mips64hf.

Tested in QEMU only.

Sponsored by: DARPA, AFRL
Sponsored by: HEIF5
Differential Revision: https://reviews.freebsd.org/D8376

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Create a new MACHINE_ARCH for Freescale PowerPC e500v2

Summary:
The Freescale e500v2 PowerPC core does not use a standard FPU.
Instead, it uses a Signal Processing Engine (SPE)--a DSP-style vector p

Create a new MACHINE_ARCH for Freescale PowerPC e500v2

Summary:
The Freescale e500v2 PowerPC core does not use a standard FPU.
Instead, it uses a Signal Processing Engine (SPE)--a DSP-style vector processor
unit, which doubles as a FPU. The PowerPC SPE ABI is incompatible with the
stock powerpc ABI, so a new MACHINE_ARCH was created to deal with this.
Additionaly, the SPE opcodes overlap with Altivec, so these are mutually
exclusive. Taking advantage of this fact, a new file, powerpc/booke/spe.c, was
created with the same function set as in powerpc/powerpc/altivec.c, so it
becomes effectively a drop-in replacement. setjmp/longjmp were modified to save
the upper 32-bits of the now-64-bit GPRs (upper 32-bits are only accessible by
the SPE).

Note: This does _not_ support the SPE in the e500v1, as the e500v1 SPE does not
support double-precision floating point.

Also, without a new MACHINE_ARCH it would be impossible to provide binary
packages which utilize the SPE.

Additionally, no work has been done to support ports, work is needed for this.
This also means no newer gcc can yet be used. However, gcc's powerpc support
has been refactored which would make adding a powerpcspe-freebsd target very
easy.

Test Plan:
This was lightly tested on a RouterBoard RB800 and an AmigaOne A1222
(P1022-based) board, compiled against the new ABI. Base system utilities
(/bin/sh, /bin/ls, etc) still function appropriately, the system is able to boot
multiuser.

Reviewed By: bdrewery, imp
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D5683

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Revert r307689

The proposed change ("Fix building of llvm's unwind if gcc has been
also built") breaks the build with clang/llvm.

Tested with...

(
export SRCCONF=/dev/null WITH_CLANG=
cd gnu/li

Revert r307689

The proposed change ("Fix building of llvm's unwind if gcc has been
also built") breaks the build with clang/llvm.

Tested with...

(
export SRCCONF=/dev/null WITH_CLANG=
cd gnu/lib/libgcc; make obj; make depend; make all
)

MFC after: 3 days
X-MFC with: r307689
Pointyhat to: bapt
Reported by: Jenkins, O. Hartmann <[email protected]>
Sponsored by: Dell EMC Isilon

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Fix building of llvm's unwind if gcc has been also built

when building gcc an unwind.h header is generate in the cc_tool directory
which is included in the CFLAGS before the path where the llvm's un

Fix building of llvm's unwind if gcc has been also built

when building gcc an unwind.h header is generate in the cc_tool directory
which is included in the CFLAGS before the path where the llvm's unwind.h file
lives

Reviewed by: emaste
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D7357

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When MAKEOBJDIRPREFIX points to a case-insensitive file system, the
build can break when different source files create the same target
files (case-insensitivity speaking). This is the case for objec

When MAKEOBJDIRPREFIX points to a case-insensitive file system, the
build can break when different source files create the same target
files (case-insensitivity speaking). This is the case for object
files compiled with -fpic and shared libraries. The former uses
an extension of ".So", and the latter an extension ".so". Rename
shared object files from *.So to *.pico to match what NetBSD does.

See also r305855

MFC after: 1 month
Sponsored by: Bracket Computing
Differential Revision: https://reviews.freebsd.org/D7906

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DIRDEPS_BUILD: Avoid cyclic dependency with libc++.

The DIRDEPS_BUILD does not have a 'make includes' phase, so it would
otherwise want libc++ to be fully built/staged before building
libgcc. Using

DIRDEPS_BUILD: Avoid cyclic dependency with libc++.

The DIRDEPS_BUILD does not have a 'make includes' phase, so it would
otherwise want libc++ to be fully built/staged before building
libgcc. Using the header directly works.

MFC after: 3 days
Sponsored by: EMC / Isilon Storage Division

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rename ARM's libunwind.S to to avoid conflict with llvm libunwind

llvm libunwind includes a libunwind.cpp, but on ARM libunwind.S is found
first in .PATH. Rename the latter one, since it is not goin

rename ARM's libunwind.S to to avoid conflict with llvm libunwind

llvm libunwind includes a libunwind.cpp, but on ARM libunwind.S is found
first in .PATH. Rename the latter one, since it is not going to be
updated again.

Reviewed by: andrew
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D7162

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libunwind: enable only the native unwinder by default

This significantly reduces stack space requirements, and runtimes
require only native unwinding.

MFC after: 1 week
Sponsored by: The FreeBSD Fo

libunwind: enable only the native unwinder by default

This significantly reduces stack space requirements, and runtimes
require only native unwinding.

MFC after: 1 week
Sponsored by: The FreeBSD Foundation

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Follow-up r297842: Rework header generation to fix always rebuilding.

This reworks the handling of common headers to just include the needed
logic rather than invoke MAKE. This avoids the problem l

Follow-up r297842: Rework header generation to fix always rebuilding.

This reworks the handling of common headers to just include the needed
logic rather than invoke MAKE. This avoids the problem listed in r297842
and avoids other dependency tracking issues.

Pointyhat to: bdrewery
Reported by: Nikolai Lifanov <[email protected]>
Sponsored by: EMC / Isilon Storage Division

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META_MODE: Avoid changed build command every build.

Because the file is generated with -f using another Makefile, 2
different Makefiles are trying to handle the .meta file for the
target. The obvio

META_MODE: Avoid changed build command every build.

Because the file is generated with -f using another Makefile, 2
different Makefiles are trying to handle the .meta file for the
target. The obvious .NOMETA_CMP or .NOMETA on the ${MAKE} targets
don't work as they are very limited in scope in bmake. Using
.PHONY fixes the problem and ensures that the ${MAKE} command
is always ran to check if it is outdated in the sub-make.

An example of the problem in gnu/lib/libgcc (with make -dM):
/usr/obj/root/git/freebsd/gnu/lib/libgcc/tm.h.meta: 2: a build command has changed
TARGET_CPU_DEFAULT="" HEADERS="options.h i386/biarch64.h i386/i386.h i386/unix.h i386/att.h dbxelf.h elfos-undef.h elfos.h freebsd-native.h freebsd-spec.h freebsd.h i386/x86-64.h i386/freebsd.h i386/freebsd64.h defaults.h" DEFINES="" /bin/sh /root/git/freebsd/gnu/lib/libgcc/../../../contrib/gcc/mkconfig.sh tm.h
vs
(cd /root/git/freebsd/gnu/lib/libgcc; make -f /root/git/freebsd/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile MFILE=/root/git/freebsd/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile GCCDIR=/root/git/freebsd/gnu/lib/libgcc/../../../contrib/gcc tm.h)
Skipping meta for tm.h: .NOMETA
(cd /root/git/freebsd/gnu/lib/libgcc; make -f /root/git/freebsd/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile MFILE=/root/git/freebsd/gnu/lib/libgcc/../../usr.bin/cc/cc_tools/Makefile GCCDIR=/root/git/freebsd/gnu/lib/libgcc/../../../contrib/gcc tm.h)
`tm.h' is up to date.

Sponsored by: EMC / Isilon Storage Division

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OBJS and POBJS have not been used since r215127.

r215127 disabled building of libgcc.a.

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division

Don't hide AR command as bsd.lib.mk's r283925 changed as well.

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division

Remove libc, librtld_db, libthr packages, and further increase
the constraints on what needs to be installed in a specific to
maintain consistency during upgrades.

Create a new clibs package contain

Remove libc, librtld_db, libthr packages, and further increase
the constraints on what needs to be installed in a specific to
maintain consistency during upgrades.

Create a new clibs package containing libraries that are needed
as a bare minimum for consistency.

With much help and input from: kib
Sponsored by: The FreeBSD Foundation

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Make .debug file for libgcc_s.so.1 more useful.

The files compiled into libgcc_s.so.1 did not have -g on
compiler command line, making generated .debug quite
pointless.

Make libgcc compilable on RISC-V.

Restore libunwind.cpp to LLVM libunwind build (reverts r294576)

The unw_* functions are not exported, but are used internally.

Drop HP libunwind (unw_*) functions from LLVM libunwind

They are not needed for exception handling.

Remove old generated unwind.h when using LLVM libunwind

When not using LLVM libunwind, unwind.h is a generated header and a stale
copy may remain in the OBJDIR after enabling LLVM libunwind. Explici

Remove old generated unwind.h when using LLVM libunwind

When not using LLVM libunwind, unwind.h is a generated header and a stale
copy may remain in the OBJDIR after enabling LLVM libunwind. Explicitly
remove it.

Reported by: bz
Reviewed by: bdrewery
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D5019

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Remove local override for .cpp.o and .cpp.po rules

The local build rule used to set -fvisibility=hidden and -fPIC, in
addition to -fexceptions and -D defines that had no effect.

With -fvisibility=h

Remove local override for .cpp.o and .cpp.po rules

The local build rule used to set -fvisibility=hidden and -fPIC, in
addition to -fexceptions and -D defines that had no effect.

With -fvisibility=hidden and -fPIC in STATIC_CXXFLAGS the standard
bsd.lib.mk rules are suitable for libgcc_s's C++ source.

PR: 206381
Sponsored by: The FreeBSD Foundation

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Remove local override for .cpp.So rule

The standard bsd.lib.mk rule is suitable for libgcc_s's C++ source.

The local rule had the following non-functional argument differences
or additions:

1. -DS

Remove local override for .cpp.So rule

The standard bsd.lib.mk rule is suitable for libgcc_s's C++ source.

The local rule had the following non-functional argument differences
or additions:

1. -DSHARED (rather than -DPIC from bsd.lib.mk)

The C++ sources don't have an #ifdef for either one.

2. -fexceptions

This is enabled by default for C++ so does not need to be set
explicitly.

3. -D__GLIBC__=3

Not used by LLVM libunwind.

4. -DElfW=__ElfN

LLVM libunwind provides its own definition.

PR: 206381
Differential Revision: The FreeBSD Foundation

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Support use of LLVM's libunwind for exception unwinding

It is built in libgcc_s.so and libgcc_eh.a to simplify transition.

It is enabled by default on arm64 (where we previously had no other
unwind

Support use of LLVM's libunwind for exception unwinding

It is built in libgcc_s.so and libgcc_eh.a to simplify transition.

It is enabled by default on arm64 (where we previously had no other
unwinder) and may be enabled for testing on other platforms by setting
WITH_LLVM_LIBUNWIND in src.conf(5).

Also add compiler-rt's __gcc_personality_v0 implementation for use with
the LLVM unwinder.

Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D4787

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Hook extra libs to _LIBS so bsd.lib.mk can do its thing

Differential Revision: D2843
Reviewed by: imp