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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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GCC determines whether the system's <limits.h> header is usable
and installs a different version of its own <limits.h> header
depending on whether the system header file exists.
If the system header is missing GCC's <limits.h> header does not
include the system header via #include_next.
For this to work we need to install LibC's headers before
attempting to build GCC.
Also, re-running BuildIt.sh "hides" this problem because at that
point the sysroot directory also already has a <limits.h> header
file from the previous build.
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This file is never read by gcc, and the filename looks like it was never meant to be added.
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This script automatically manages the toolchain and cmake/ninja folders
making it easier to manage the different target architectures.
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Our TLS implementation relies on the TLS model being "initial-exec".
We previously enforced this by adding the '-ftls-model=initial-exec'
flag in the root CmakeLists file, but that did not affect ports - So
now we put that flag in the gcc spec files.
Closes #5366
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realpath(1) is specific to coreutils and its behavior can be had
with readlink -f
Create the Toolchain Build directory if it doesn't exist before
calling readlink, since realpath(3) on at least OpenBSD will error
on a non-existent path
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The current version of our Python port (3.6.0) is over four years old by
now and has (or had, I haven't actually tried it in a while) some
limitations - time for an upgrade! The latest Python release is 3.9.1,
so I used that version. It's a from-scratch port, no patches are taken
from the previous port to ensure the smallest possible amount of code is
patched. The BuildPython.sh script is useful so I kept it, with some
tweaks. I added a short document explaining each patch to ease judging
their underlying problem and necessity in the future.
Compared to the old Python port, this one does support both the time
module as well as threading (at least _thread) just fine. Importing
modules written in C (everything in /usr/local/lib/python3.9/lib-dynload)
currently asserts in Serenity's dynamic loader, which is unfortunate but
probably solvable. Possibly related to #4642. I didn't try building
Python statically, which might be one possibility to circumvent this
issue.
I also renamed the directory to just "python3", which is analogous to
the Python 3.x package most Linux distributions provide. That implicitly
means that we likely will not support multiple versions of the Python
port at any given time, but again, neither do many other systems by
default. Recent versions are usually backwards compatible anyway though,
so having the latest shouldn't be a problem.
On the other hand bumping the version should now be be as simple as
updating the variables in version.sh, given that no new patches are
required.
These core modules to currently not build - I chose to ignore that for
now rather than adding more patches to make them work somehow, which
means they're fully unavailable. This should probably be fixed in
Serenity itself.
_ctypes, _decimal, _socket, mmap, resource, termios
These optional modules requiring 3rd-party dependencies do currently not
build (even with depends="ncurses openssl zlib"). Especially the absence
of a readline port makes the REPL a bit painful to use. :^)
_bz2, _curses, _curses_panel, _dbm, _gdbm, _hashlib, _lzma, _sqlite3,
_ssl, _tkinter, _uuid, nis, ossaudiodev, readline, spwd, zlib
I did some work on LibC and LibM beforehand to add at least stubs of
missing required functions, it still encounters an ASSERT_NOT_REACHED()
/ TODO() every now and then, notably frexp() (implementations of that
can be found online easily if you want to get that working right now).
But then again that's our fault and not this port's. :^)
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We now configure gcc to always use the -fno-exceptions flag.
This does not affect our code since we do not use exceptions, and also
fixes the gcc port.
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RTTI is still disabled for the Kernel, and for the Dynamic Loader. This
allows for much less awkward navigation of class heirarchies in LibCore,
LibGUI, LibWeb, and LibJS (eventually). Measured RootFS size increase
was < 1%, and libgui.so binary size was ~3.3%. The small binary size
increase here seems worth it :^)
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This was setting CMAKE_C_COMPILER and CMAKE_CXX_COMPILER to
"ENV{SERENITY_ARCH}-pc-serenity-...", causing some ports to not build
properly.
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