mvaisakh / gcc-build

Bleeding Edge Bare Metal GCC build script.

GCC Cross Compiler Toolchain Build Script

This repository contains the script needed to compile bare metal GCC for various architectures using Linux distributions. The GCC source is fetched from the master branch hence, contains all the bleeding edge changes.

Before we start

Below are the packages you'll need

• Ubuntu or other Debian based distros

  To install and set GCC 10 as the default compiler, you need to:

  sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && sudo apt-get update

  sudo apt-get install flex bison ncurses-dev texinfo gcc gperf patch libtool automake g++ libncurses5-dev gawk subversion expat libexpat1-dev python-all-dev binutils-dev bc libcap-dev autoconf libgmp-dev build-essential pkg-config libmpc-dev libmpfr-dev autopoint gettext txt2man liblzma-dev libssl-dev libz-dev mercurial wget tar gcc-10 g++-10 zstd --fix-broken --fix-missing

• Arch Linux

  sudo pacman -S base-devel clang cmake git libc++ lld lldb ninja

• Fedora

  sudo dnf groupinstall "Development tools"
  sudo dnf install mpfr-devel gmp-devel libmpc-devel zlib-devel glibc-devel.i686 glibc-devel binutils-devel g++ texinfo bison flex cmake which clang ninja-build lld bzip2

Usage

Running this script is quite simple. We start by cloning this repository:

git clone https://github.com/mvaisakh/gcc-build.git gcc-build

./build-gcc.sh -a <architechture>

As of now, I only support arm, arm64 and x86 (compiles for x86_64 only). This list is subject to change as I receive requests.

Keep in mind that this script contains just the bare minimum prerequisites.

Credits

• Vaisakh (me) for writing this script.
• OS Dev Wiki for knowledge base.
• USBHost's Amazing GCC Build script for certain prerequisite dependencies.

Looking for precompiled toolchains?

My GCC Cross Compiler builds are automated and pushed biweekly i.e. on Sundays & Thursdays at 00:00 GMT+5:30 (IST). They are pushed to the releases page!

Contributing to this repo

You're more than welcome to improve the contents within this script with a pull request. Enjoy :)

gcc-build's Issues

Fortran and i686 support

Hello,
could it be possible to
(a) add Fortran support (--languages=c,c++,fortran) to your toolchains
and
(b) create similar cross-compiler set (arm-gcc, aarch64-gcc, x86_64-gcc) also for x86?
I tried to do it myself but unfortunately, I did not succeed even with the pre-set configuration in your script (using WSL Ubuntu)... either one of the downoad mirrors is unavailable from my place, or the compilation crashes elsewhere.
Thanks,
AL

internal compiler error: in related_int_vector_mode, at stor-layout.cc:581

during GIMPLE pass: vect
../techpack/camera/drivers/cam_isp/isp_hw_mgr/isp_hw/ife_csid_hw/cam_ife_csid_core.c: In function 'cam_ife_csid_process_cmd':
../techpack/camera/drivers/cam_isp/isp_hw_mgr/isp_hw/ife_csid_hw/cam_ife_csid_core.c:4597:12: internal compiler error: in related_int_vector_mode, at stor-layout.cc:581
4597 | static int cam_ife_csid_process_cmd(void *hw_priv,
| ^~~~~~~~~~~~~~~~~~~~~~~~
CC techpack/dataipa/drivers/platform/msm/ipa/ipa_v3/ipa_uc.o
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See https://gcc.gnu.org/bugs/ for instructions.
CC drivers/clk/qcom/clk-opp.o
make[4]: *** [../scripts/Makefile.build:287: techpack/camera/drivers/cam_isp/isp_hw_mgr/isp_hw/ife_csid_hw/cam_ife_csid_core.o] Error 1

during GIMPLE pass: vect
../kernel/sched/psi.c: In function 'collect_percpu_times.constprop':
../kernel/sched/psi.c:312:13: internal compiler error: in related_int_vector_mode, at stor-layout.cc:581
312 | static void collect_percpu_times(struct psi_group *group,
| ^~~~~~~~~~~~~~~~~~~~
CC drivers/crypto/msm/qcedev.o
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See https://gcc.gnu.org/bugs/ for instructions.
CC drivers/clk/qcom/clk-regmap-mux-div.o
make[3]: *** [../scripts/Makefile.build:287: kernel/sched/psi.o] Error 1

during GIMPLE pass: vect
../fs/proc/array.c: In function 'proc_pid_status':
../fs/proc/array.c:404:5: internal compiler error: in related_int_vector_mode, at stor-layout.cc:581
404 | int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
| ^~~~~~~~~~~~~~~
CC techpack/dataipa/drivers/platform/msm/ipa/ipa_v3/ipa_wdi3_i.o
CC lib/zstd/compress/zstd_fast.o
AR sound/usb/bcd2000/built-in.a
AR drivers/dax/pmem/built-in.a
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See https://gcc.gnu.org/bugs/ for instructions.
CC techpack/display/msm/dp/dp_pll_5nm.o
CC mm/madvise.o
CC drivers/dax/super.o
AR sound/usb/caiaq/built-in.a
make[3]: *** [../scripts/Makefile.build:287: fs/proc/array.o] Error 1

during GIMPLE pass: vect
../lib/zstd/decompress/huf_decompress.c: In function 'HUF_readDTableX1_wksp':
../lib/zstd/decompress/huf_decompress.c:354:8: internal compiler error: in related_int_vector_mode, at stor-layout.cc:581
354 | size_t HUF_readDTableX1_wksp(HUF_DTable* DTable, const void* src, size_t srcSize, void* workSpace, size_t wkspSize, int flags)
| ^~~~~~~~~~~~~~~~~~~~~
CC sound/usb/validate.o
CC sound/usb/media.o
CC net/ipv6/icmp.o
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See https://gcc.gnu.org/bugs/ for instructions.
make[3]: *** [../scripts/Makefile.build:287: lib/zstd/decompress/huf_decompress.o] Error 1

during GIMPLE pass: vect
../drivers/net/wireless/cnss2/qmi.c: In function 'cnss_wlfw_request_mem_ind_cb':
../drivers/net/wireless/cnss2/qmi.c:2402:13: internal compiler error: in related_int_vector_mode, at stor-layout.cc:581
2402 | static void cnss_wlfw_request_mem_ind_cb(struct qmi_handle *qmi_wlfw,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
CC drivers/opp/cpu.o
AR drivers/media/usb/gspca/built-in.a
CC drivers/opp/of.o
In file included from ../techpack/display/msm/dsi/dsi_defs.h:12,
from ../techpack/display/msm/dsi/dsi_ctrl_hw.h:15,
from ../techpack/display/msm/dsi/dsi_ctrl_hw_2_2.c:7:
../techpack/display/msm/msm_drv.h:269:20: warning: 'msm_spr_pack_type_str' defined but not used [-Wunused-variable]
269 | static const char *msm_spr_pack_type_str[MSM_DISPLAY_SPR_TYPE_MAX] = {
| ^~~~~~~~~~~~~~~~~~~~~
CC drivers/pci/controller/pci-host-common.o
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See https://gcc.gnu.org/bugs/ for instructions.
AR drivers/media/usb/siano/built-in.a
make[5]: *** [../scripts/Makefile.build:287: drivers/net/wireless/cnss2/qmi.o] Error 1

during GIMPLE pass: vect
../drivers/net/wireless/ath/ath9k/calib.c: In function 'ath9k_hw_getnf':
../drivers/net/wireless/ath/ath9k/calib.c:400:6: internal compiler error: in related_int_vector_mode, at stor-layout.cc:581
400 | bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
| ^~~~~~~~~~~~~~
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See https://gcc.gnu.org/bugs/ for instructions.
make[6]: *** [../scripts/Makefile.build:287: drivers/net/wireless/ath/ath9k/calib.o] Error 1

during GIMPLE pass: vect
../drivers/net/wireless/ath/carl9170/rx.c: In function '__carl9170_rx':
../drivers/net/wireless/ath/carl9170/rx.c:854:13: internal compiler error: in related_int_vector_mode, at stor-layout.cc:581
854 | static void __carl9170_rx(struct ar9170 *ar, u8 *buf, unsigned int len)
| ^~~~~~~~~~~~~
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See https://gcc.gnu.org/bugs/ for instructions.
CC drivers/regulator/dummy.o
make[6]: *** [../scripts/Makefile.build:287: drivers/net/wireless/ath/carl9170/rx.o] Error 1

Gcc Eva version: 25072024.
https://bin.cyberknight777.dev/kdRJ/raw
kt: https://github.com/dev-sm8350/kernel_oneplus_sm8350

~$ gcc --version
gcc (GCC) 14.1.1 20240701 (Red Hat 14.1.1-7)
Copyright (C) 2024 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

~$ cat /etc/os-release
NAME="Fedora Linux"
VERSION="40 (Toolbx Container Image)"
ID=fedora
VERSION_ID=40
VERSION_CODENAME=""
PLATFORM_ID="platform:f40"
PRETTY_NAME="Fedora Linux 40 (Toolbx Container Image)"
ANSI_COLOR="0;38;2;60;110;180"
LOGO=fedora-logo-icon
CPE_NAME="cpe:/o:fedoraproject:fedora:40"
DEFAULT_HOSTNAME="fedora"
HOME_URL="https://fedoraproject.org/"
DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora/f40/system-administrators-guide/"
SUPPORT_URL="https://ask.fedoraproject.org/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="Fedora"
REDHAT_BUGZILLA_PRODUCT_VERSION=40
REDHAT_SUPPORT_PRODUCT="Fedora"
REDHAT_SUPPORT_PRODUCT_VERSION=40
SUPPORT_END=2025-05-13
VARIANT="Toolbx Container Image"
VARIANT_ID=toolbx

~$ ldd --version
ldd (GNU libc) 2.39
Copyright (C) 2024 Free Software Foundation, Inc.

Can the compiled compiler be optimized by PGO?

Like ClangBuiltLinux, it divided two stages to optimize the compiler by PGO. Can we do this cool thing for GCC?

ld.lld: error: undefined symbol: __popcountdi2

Log:
ld.lld: error: undefined symbol: __popcountdi2

referenced by msm_vidc_common.c
video/msm/vidc/msm_vidc_common.o:(msm_comm_set_color_format_constraints) in archive techpack/built-in.a
referenced by dp_link.c
display/msm/dp/dp_link.o:(dp_link_process_request) in archive techpack/built-in.a
make[1]: *** [/home/togo77/kernel_oneplus_sm8350/Makefile:1299: vmlinux] Error 1
make: *** [Makefile:192: sub-make] Error 2

Full log:
https://bin.cyberknight777.dev/eVQ6/raw

kt: https://github.com/dev-sm8350/kernel_oneplus_sm8350
gcc used: 29082024
gcc of the day: 22082024. It was ok