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This patch is based off:
https://github.com/osx-cross/homebrew-avr/pull/248 and
https://github.com/riscv/riscv-gnu-toolchain/issues/800
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This is no longer necessary now that the kernel doesn't use libsupc++
anymore.
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Previously we'd place the QEMU binaries into the architecture-specific
toolchain directory. This is a problem because the BuildIt.sh script
clears those directories which also removes the QEMU binaries users
may have built earlier. Also, the QEMU binaries are not specific to
the target architecture.
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Docker is a nice way of doing build automation, or just
containerizing builds for increased safety and isolating unstable
packages. The old Dockerfile in the toolchain did not satisfy these
needs. The new Dockerfile is known to run successfully on Docker
version 20.10.7. It clones the SerenityOS repo and builds the
toolchain. In this way, it is intended to be a starting point for other
Docker images that can e.g. run builds. For example, one can simply run
this docker image as-is, exec a shell in it and run a build there.
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We need `msgfmt` inside of the `gettext` package in order to build the
git port.
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Following up on 2d38d56e, we were missing this in our Dockerfile.
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This imports the upstream patch from
https://sourceware.org/bugzilla/show_bug.cgi?id=27382
Fixes #7407.
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the vanilla versions might not handle all things, that gcc can do;
For example is lto not really supported by the vanilla versions
source:
https://gcc.gnu.org/wiki/LinkTimeOptimizationFAQ
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Turns out we don't need that after all.
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Rather than having the toolchain build fail half-way through we should
check whether the user has installed all the required tools and
libraries early on.
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Previously the buildstep function would obscure error codes because
the return value of the function was the exit code for the sed command
which caused us to continue execution even though one of the build
steps had failed.
With set -o pipefail the return value of the buildstep function is
the real command's exit code.
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This ensures inter-machine compatibility by not emitting any processor
specific instructions. This fixes the issue raised by the non AVX-512
supporting GitHub actions runners.
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-march=native specializes the binaries for the CPU features available on
the CPU the binary is being compiled on. This matches the needs of the
Toolchain, as it's always built and used on that machine only.
This should be safe for the github actions VMs as well, as they all run
on a standard VM SKU in "the cloud".
I saw small but notable improvements in end-2-end build times in my
local testing. Each compilation unit is on average around a second
faster on my Intel(R) Core(TM) i7-8705G CPU @ 3.10GHz.
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This makes stdlib.h and stdio.h functions available in the std
namespace for C++.
libstdc++v3's link tests can fail if you don't have an up-to-date
build directory, for example:
1. Have libc with missing _Exit symbol because you haven't done
a build since that was added.
2. Run toolchain rebuild. libstdc++v3's configure script will
realize that it can do link tests in general but will fail
later on when it tries to link a program that tests for _Exit.
Even though this is a toolchain patch this does not necessarily
require rebuilding the toolchain right away. This is only required
once we start using any of these new members in the std namespace,
e.g. for ports.
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This fixes the -nodefaultlibs flag for gcc which previously
linked against libgcc_s anyway. Even though this is a toolchain
patch we don't need to rebuild the toolchain right away.
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BuildIt.sh had a bunch of SC2086 errors, where we were not quoting
variables in variable expansions. The logic being:
Quoting variables prevents word splitting and glob expansion,
and prevents the script from breaking when input contains spaces,
line feeds, glob characters and such.
Reference: https://github.com/koalaman/shellcheck/wiki/SC2086
As bcoles noticed in #6772, shellcheck actually found a real bug here,
where the user's build directory included spaces.
Close: #6772
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BuildFuseExt2.sh was saying it should be run under /bin/sh but it is
using bash extensions like pushd/popd, ${BASH_SOURCE[0]}, etc. So just
run it under bash to avoid any potential issues.
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Shellcheck is unable to source non-literal includes,
so inform shellcheck to just ignore this include.
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Ordinarily this would force the compiler to not inline certain
symbols and call them via the PLT instead. To counteract this
I've also added -fno-semantic-interposition which disables
ELF symbol interposition. Our dynamic loader doesn't support
this anyway and we might even consider not implementing this
at all.
Even though this is a toolchain change this doesn't require
rebuilding the toolchain unless you're planning to build
for the x86_64 arch.
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Previously the toolchain's binutils would not have been able to
build binaries on 32-bit host systems (not that this would be
much of an issue nowadays) because one of the #ifdefs was in
the wrong place.
I moved the #ifdef in the port's patch and this now updates
the toolchain's patch file to match the port's patch.
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Changes since rc4:
0cef06d187: Update version for v6.0.0-rc5 release
5351fb7cb2: hw/block/nvme: fix invalid msix exclusive uninit
ffa090bc56: target/s390x: fix s390_probe_access to check PAGE_WRITE_ORG
bc38e31b4e: net: check the existence of peer before trying to pad
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Make this stuff a bit easier to maintain by using the
root level variables to build up the Toolchain paths.
Also leave a note for future editors of BuildIt.sh to
give them warning about the other changes they'll need
to make.
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Both utilies are used in the .port_include.sh file.
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This fixes building cmake and other ports which use cmake
to detect whether we have -ldl.
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This enables POSIX threads for GCC and makes the -pthread
argument available.
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Previously debug symbols were produced and then stripped.
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MacOS's sed doesn't support "\x1b" expansion unlike GNU sed, but we can
still use bash's $'\x1b' to expand it.
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Unfortunately their sed behaves a tiny bit different to how
GNU sed does.
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This enables building usermode programs with exception handling. It also
builds a libstdc++ without exception support for the kernel.
This is necessary because the libstdc++ that gets built is different
when exceptions are enabled. Using the same library binary would
require extensive stubs for exception-related functionality in the
kernel.
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We don't have libdl (yet) so update the CMAKE_DL_LIBRARY
definition to match.
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This also ensures that pkg-config finds packages in /usr/local
and changes the install prefix to /usr/local.
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Instead GCC should be used to automatically link against crt0
and crt0_shared depending on the type of object file that is being
built.
Unfortunately this requires a rebuild of the toolchain as well
as everything that has been built with the old GCC.
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10.3.0 is a bugfix release, with 178 bugs fixed.
See: https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=10.3
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This updates binutils to the latest release. It looks like some
lines where shuffled around, so I had to fixup out patch to
apply cleanly again.
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