Here's how I setup reasonably fast builds for ArchPower 32-bit. There are many ways to do this, but this is what worked for me, and it made my builds much faster than native.
Warning: Cross-compiling could give you different results from compiling on a real POWER/PowerPC box! Usually it's fine, but be cautious about distributing the resulting binaries.
We'll use icecream to coordinate cross-compilation.
| #include <sys/mman.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <unistd.h> | |
| #include <string.h> | |
| #include <sched.h> | |
| void print_maps(void *addr) { | |
| char cmd[256]; | |
| snprintf(cmd, sizeof(cmd), "grep %lx /proc/%d/maps", |
| 9 "Internal Mac OS 9" hd:9,\\:tbxi | |
| # External OS 9 needs full path | |
| f "FW Mac OS 9" /pci@f4000000/firewire@e/@1d20399007241/@4008/@0:10,\\:tbxi | |
| x "Mac OS X" fwd:25,\\:tbxi | |
| y Yellowdog fwd:12,yaboot | |
| d "Debian sid" fwd:18,grub | |
| a ArchPower fwd:20,grub | |
| l Lubuntu fwd:22,yaboot | |
| u "Front USB port" usb0/disk:2,\\:tbxi | |
| o "Open Firmware" OF |
| time="2025-09-11T13:22:30Z" level=info msg="* Creating a ccache manager instance *" | |
| time="2025-09-11T13:22:30Z" level=info msg=" ccache root folder : ()" | |
| time="2025-09-11T13:22:30Z" level=info msg=" ccache remote configuration: ()" | |
| time="2025-09-11T13:22:30Z" level=warning msg="Failed to initialize the ccache manager:\nCCache root directory cannot be empty." | |
| time="2025-09-11T13:22:30Z" level=debug msg="Using (/usr/bin/pigz) to extract tar" | |
| time="2025-09-11T13:22:30Z" level=info msg="Building (php-pear-1.10.13-4.azl3.src.rpm)." | |
| time="2025-09-11T13:22:30Z" level=debug msg="Executing: [tar -I /usr/bin/pigz -xf /root/azurelinux/build/worker/worker_chroot.tar.gz -C /root/azurelinux/build/worker/chroot/php-pear-1.10.13-4.azl3]" |
| Cacheable calls: 2607 / 2622 (99.43%) | |
| Hits: 2396 / 2607 (91.91%) | |
| Direct: 2393 / 2396 (99.87%) | |
| Preprocessed: 3 / 2396 ( 0.13%) | |
| Misses: 211 / 2607 ( 8.09%) | |
| Uncacheable calls: 15 / 2622 ( 0.57%) | |
| Local storage: | |
| Cache size (GiB): 5.0 / 5.0 (99.88%) | |
| Cleanups: 20 | |
| Hits: 2396 / 2607 (91.91%) |
| time="2025-09-05T21:05:38Z" level=info msg="* Creating a ccache manager instance *" | |
| time="2025-09-05T21:05:38Z" level=info msg=" ccache root folder : (/root/azurelinux/ccache)" | |
| time="2025-09-05T21:05:38Z" level=info msg=" ccache remote configuration: (/root/azurelinux/toolkit/resources/manifests/package/ccache-configuration.json)" | |
| time="2025-09-05T21:05:38Z" level=info msg=" loading ccache configuration file: /root/azurelinux/toolkit/resources/manifests/package/ccache-configuration.json" | |
| time="2025-09-05T21:05:38Z" level=info msg=" Type : azure-blob-storage" | |
| time="2025-09-05T21:05:38Z" level=info msg=" TenantId : " | |
| time="2025-09-05T21:05:38Z" level=info msg=" UserName : " | |
| time="2025-09-05T21:05:38Z" level=info msg=" StorageAccount : marinerccache" | |
| time="2025-09-05T21:05:38Z" level=info msg=" ContainerName : 30-stable" | |
| time="2025-09-05T21:05:38Z" level=info msg=" Tagsfolder : tags" |
| #!/bin/bash | |
| output=${1-ofboot} | |
| count=0 | |
| entries=() | |
| addentry() { | |
| count=$((count + 1)) | |
| entries+=("$@") |
| #include <sys/mman.h> | |
| #include <fcntl.h> | |
| #include <stdio.h> | |
| int main(int argc, char *argv[]) { | |
| // Run: sudo ./test /sys/bus/pci/devices/*:00:10.0/resource2 | |
| char *file = argv[1]; | |
| fprintf(stderr, "file = %s\n", file); | |
| int fd = open(file, O_RDWR | O_CLOEXEC); | |
| fprintf(stderr, "fd = %d\n", fd); |
| SUBSYSTEM!="pci", GOTO="gdm_pci_device_end" | |
| ACTION!="bind", ACTION!="add", GOTO="gdm_pci_device_end" | |
| # cirrus | |
| ATTR{vendor}=="0x1013", ATTR{device}=="0x00b8", ATTR{subsystem_vendor}=="0x1af4", ATTR{subsystem_device}=="0x1100", RUN+="/usr/bin/touch /run/udev/gdm-machine-has-virtual-gpu", ENV{GDM_MACHINE_HAS_VIRTUAL_GPU}="1", GOTO="gdm_pci_device_end" | |
| # virtio | |
| ATTR{vendor}=="0x1af4", ATTR{device}=="0x1050", ATTR{subsystem_vendor}=="0x1af4", ATTR{subsystem_device}=="0x1100", RUN+="/usr/bin/touch /run/udev/gdm-machine-has-virtual-gpu", ENV{GDM_MACHINE_HAS_VIRTUAL_GPU}="1", GOTO="gdm_pci_device_end" | |
| # qxl | |
| ATTR{vendor}=="0x1b36", ATTR{device}=="0x0100", RUN+="/usr/bin/touch /run/udev/gdm-machine-has-virtual-gpu", ENV{GDM_MACHINE_HAS_VIRTUAL_GPU}="1", GOTO="gdm_pci_device_end" | |
| # vga |
| # .bashrc | |
| # Source global definitions | |
| if [ -f /etc/bashrc ]; then | |
| . /etc/bashrc | |
| fi | |
| # User specific environment | |
| if ! [[ "$PATH" =~ "$HOME/.local/bin:$HOME/bin:" ]]; then | |
| PATH="$HOME/.local/bin:$HOME/bin:$PATH" |