Fix parallel build of gnu-efi #643
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When building with make 4.4.1, gnu-efi may be built twice and in parallel: $ make -n -j ARCH=x86_64 2>&1 | tee build.log $ grep -e 'make -C gnu-efi' build.log make -C gnu-efi \ make -C gnu-efi \ This has been seen to cause linking failures when building libgnuefi.a because some object files may end up truncated. The reason for this is that make interprets multiple targets in the same rule as independent and can run the rule multiple times. The solution is to define a grouped target with &:, which causes make to behave the way one expects: runs the rule once and expects it to create all targets. Grouped target support was added in make 4.3 released 4 years ago. Signed-off-by: Jeremi Piotrowski <[email protected]>
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The bundled gnu-efi build is implemented in a buggy way that can break when built in parallel. We've hit this in the nightly sdk build. Add a patch for it. The patch has been posted upstream at rhboot/shim#643. Signed-off-by: Jeremi Piotrowski <[email protected]>
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jepio
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The bundled gnu-efi build is implemented in a buggy way that can break when built in parallel. We've hit this in the nightly sdk build. Add a patch for it. The patch has been posted upstream at rhboot/shim#643. Signed-off-by: Jeremi Piotrowski <[email protected]>
jepio
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Feb 29, 2024
The bundled gnu-efi build is implemented in a buggy way that can break when built in parallel. We've hit this in the nightly sdk build. Add a patch for it. The patch has been posted upstream at rhboot/shim#643. Signed-off-by: Jeremi Piotrowski <[email protected]>
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"4 years ago" does indeed seem like it's a long time, but quite a few of our consumers are stuck (for now) on make 3.82. Is there another way we can avoid this behavior? |
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When building with make 4.4.1, gnu-efi may be built twice and in parallel:
This has been seen to cause linking failures when building libgnuefi.a because some object files may end up truncated.
The reason for this is that make interprets multiple targets in the same rule as independent and can run the rule multiple times. The solution is to define a grouped target with &:, which causes make to behave the way one expects: runs the rule once and expects it to create all targets.
Grouped target support was added in make 4.3 released 4 years ago.