[clang] [clang][test] Pass -resource-dir in riscv*-toolchain-extra.c tests (PR #226952)

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llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang-driver

@llvm/pr-subscribers-clang

Author: gallopruss-sie

<details>
<summary>Changes</summary>

These tests check that, with no GCC installation, the driver finds the linker, crt0 and sysroot relative to its own bin/ directory. The compiler-rt paths come from the resource directory, which the tests did not specify, so they relied on the build's CLANG_RESOURCE_DIR placing it within the fake toolchain tree.

With a relative CLANG_RESOURCE_DIR containing several "..", e.g. ../../../../lib/clang/24 as used by Gentoo, the resource directory resolves outside of the test tree. This previously passed only because the unnormalized path still contained "riscv64-nogcc/". Since 99988429d395 removed the dots from the path, the checks fail.

Pass an explicit -resource-dir within the test tree so the tests don't depend on the build configuration.

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Full diff: https://github.com/llvm/llvm-project/pull/226952.diff


2 Files Affected:

- (modified) clang/test/Driver/riscv32-toolchain-extra.c (+2) 
- (modified) clang/test/Driver/riscv64-toolchain-extra.c (+2) 


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</details>


https://github.com/llvm/llvm-project/pull/226952