test/link/glibc_compat: Add C test case for glibc versions - #19007
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glibc_runtime_check.c is a simple test case that exercises glibc functions that might smoke out linking problems with Zig's C compiler. The build.zig compiles it against a variety of glibc versions. Also document and test glibc v2.2.5 (from 2002) as the oldest working glibc target for C binaries.
Had constrained the `aarch64_be` target, but not `aarch64`. This constraint is necessary because earlier versions of glibc do not support the aarch64 architecture. Also, skip unsupported test cases.
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Nice! |
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BTW, here are some pre-built glibc sets that you can use: Warning: these files are massive - multiple GiB each. I have not enabled any such testing on the CI (yet?) Basically, QEMU can be used to run cross-compiled zig code that uses glibc. |
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glibc_runtime_check.c: a simple test case that exercises glibc functions that might smoke out linking problems with Zig's C compiler. The build.zig compiles it against a variety of glibc versions.Also mark the
aarch64glibc minimum version as 2.17 (theaarch64_betarget was already marked). This is necessary because earlier versions of glibc do not support the aarch64 architecture.Also document and test glibc v2.2.5 (from 2002) as the oldest working glibc target for C binaries. (Earlier versions fail with a raft of missing symbols.)