[llvm] [libc][ci] Add qemu armhf and riscv64 overlay tests to precommit CI. (PR #203369)

[via llvm-commits]

https://github.com/lntue updated https://github.com/llvm/llvm-project/pull/203369

>From c810527b4712ecee4328b7a29fa48999736ad2b1 Mon Sep 17 00:00:00 2001
From: Tue Ly <lntue at google.com>
Date: Thu, 11 Jun 2026 16:43:02 -0400
Subject: [PATCH 1/2] [libc] Add qemu armhf overlay tests to precommit CI.

Please enter the commit message for your changes. Lines starting
---
 .github/workflows/libc-overlay-tests.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/libc-overlay-tests.yml b/.github/workflows/libc-overlay-tests.yml
index cfa51aa918bce..586a608e66df1 100644
--- a/.github/workflows/libc-overlay-tests.yml
+++ b/.github/workflows/libc-overlay-tests.yml
@@ -128,6 +128,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - arch: armhf
+            target_triple: arm-linux-gnueabihf
+            c_compiler: clang-23
+            cxx_compiler: clang++-23
           - arch: riscv64
             target_triple: riscv64-linux-gnu
             c_compiler: clang-23

>From a46cb5ad9af240321e359c583a4161ccccc5e20a Mon Sep 17 00:00:00 2001
From: Tue Ly <lntue at google.com>
Date: Tue, 14 Jul 2026 15:49:32 -0400
Subject: [PATCH 2/2] Add privileged option so that certain tests have
 necessary permissions.

---
 .github/workflows/libc-overlay-tests.yml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/libc-overlay-tests.yml b/.github/workflows/libc-overlay-tests.yml
index 586a608e66df1..f1552e5594364 100644
--- a/.github/workflows/libc-overlay-tests.yml
+++ b/.github/workflows/libc-overlay-tests.yml
@@ -122,7 +122,12 @@ jobs:
     name: qemu - ${{ matrix.arch }} - ${{ matrix.c_compiler }}
     runs-on: ubuntu-24.04
     timeout-minutes: 60
-    container: 'ghcr.io/llvm/libc-ubuntu-24.04:latest at sha256:c6e2ee2a9bf5cebd51fd27dd8e85381c2f73d90e091c764082f8ad528ee18918'
+    container:
+      image: 'ghcr.io/llvm/libc-ubuntu-24.04:latest at sha256:c6e2ee2a9bf5cebd51fd27dd8e85381c2f73d90e091c764082f8ad528ee18918'
+      # We need to enable privileged containers so that certain libc tests
+      # have the necessary permissions (like SYS_TIME). There are no security
+      # implications as we are already running in an isolated VM.
+      options: --privileged
     strategy:
       # Set fail-fast to false to ensure that feedback is delivered for all matrix combinations.
       fail-fast: false