robojerk
4c0dcb2522
- Add mock-specific build artifacts (chroot/, mock-*, mockroot/) - Include package build files (*.deb, *.changes, *.buildinfo) - Add development tools (.coverage, .pytest_cache, .tox) - Include system files (.DS_Store, Thumbs.db, ._*) - Add temporary and backup files (*.tmp, *.bak, *.backup) - Include local configuration overrides (config.local.yaml, .env.local) - Add test artifacts and documentation builds - Comprehensive coverage for Python build system project This ensures build artifacts, chroot environments, and development tools are properly ignored in version control.
35 lines
1.5 KiB
Markdown
35 lines
1.5 KiB
Markdown
---
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layout: default
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title: Feature forcearch
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---
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## Forcearch
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Previously you were able to only build for compatible architectures. I.e., you can build `i386` package on `x86_64` architecture. When you tried to build for incompatible architecture, you get this error:
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```
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$ mock -r fedora-28-ppc64le shell
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ERROR: Cannot build target ppc64le on arch x86_64, because it is not listed in legal_host_arches ('ppc64le',)
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```
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Now, you can build for any architecture using a new option --force-arch ARCH. [GH#120](https://github.com/rpm-software-management/mock/issues/120) You have to have installed package `qemu-user-static`, which is a new soft dependence. Try this:
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```
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$ sudo dnf install qemu-user-static
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$ mock -r fedora-28-ppc64le --forcearch ppc64le shell
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```
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and you get the prompt in PPC64LE Fedora. You can do this for any architecture supported by QEMU.
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You got just `INFO` in the log stating:
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```
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INFO: Unable to build arch ppc64le natively on arch x86_64. Setting forcearch to use software emulation.
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```
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Note: Do not confuse `--forcearch` and `--arch` which are very different options.
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:warning: `qemu-user-static` emulates **user** space, but cannot emulate **kernel** space. If your package need some architecture specific kernel calls or e.g., is parsing output of `lscpu` then this feature is not for you. :(
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This has been added to Mock 1.4.11.
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Since version 2.0 you do not need to use `--forcearch` as Mock will detect that you want to use different than your native architecture and use qemu-user-static automatically.
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