CI updates

.github/workflows/ci.yaml

@@ -95,14 +95,9 @@ jobs:
         if: matrix.toolchain == 'stable'
         run: ./ci/prep-semver-baseline.sh
 
-      # FIXME(ci): These `du` statements are temporary for debugging cache
-      - name: Target size before restoring cache
-        run: du -sh target | sort -k 2 || true
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: ${{ matrix.os }}-${{ matrix.toolchain }}
-      - name: Target size after restoring cache
-        run: du -sh target | sort -k 2 || true
 
       - name: Execute build check
         run: |
@@ -124,8 +119,6 @@ jobs:
             ${BASELINE_CRATE_DIR:+"--baseline-crate-dir" "$BASELINE_CRATE_DIR"} \
             ${{ matrix.only && format('--only "{0}"', matrix.only) }} \
             ${{ matrix.half && format('--half "{0}"', matrix.half) }}
-      - name: Target size after job completion
-        run: du -sh target | sort -k 2
 
   test_tier1:
     name: Test tier1

libc-test/build/main.rs

@@ -3940,7 +3940,6 @@ fn test_linux(t: &Target) {
     }
 
     let arm32 = t.arm32();
-    let eabihf = t.eabihf();
     let aarch64 = t.aarch64();
     let ppc = t.ppc();
     let ppc64 = t.ppc64();
@@ -3969,6 +3968,7 @@ fn test_linux(t: &Target) {
         None if l4re => (0, 0),
         None => panic!("failed to detect kernel version for Linux target {t:?}",),
     };
+    let glibc = versions.glibc;
 
     let mut musl_v1_2 = env_flag("CARGO_CFG_LIBC_UNSTABLE_MUSL_V1_2");
     if musl_v1_2 {
@@ -4781,9 +4781,6 @@ fn test_linux(t: &Target) {
             // FIXME(linux32): Requires >= 6.6 kernel headers.
             "XDP_USE_SG" | "XDP_PKT_CONTD" if p32 => kernel < (6, 6),
 
-            // FIXME(linux): Missing only on this platform for some reason
-            "PR_MDWE_NO_INHERIT" if gnueabihf => true,
-
             // FIXME(musl): Not yet in musl
             // FIXME(linux32): Requires >= 6.8 kernel headers.
             "XDP_UMEM_TX_SW_CSUM"
@@ -4842,9 +4839,14 @@ fn test_linux(t: &Target) {
             "AT_HWCAP3" | "AT_HWCAP4" if old_musl => true,
             "AT_HWCAP3" | "AT_HWCAP4" => kernel < (6, 9),
             "BCACHEFS_SUPER_MAGIC" => kernel < (6, 10),
+            "PR_MDWE_NO_INHERIT" => kernel < (6, 7),
             "PTRACE_SET_SYSCALL_INFO" => kernel < (6, 16),
             "TLS_INFO_TX_MAX_PAYLOAD_LEN" | "TLS_INFO_MAX" => kernel < (6, 19),
 
+            // Available in fcntl since kernel 6.5 but we don't import that header, so can only
+            // get it via recent glibc.
+            "AT_HANDLE_FID" => kernel < (6, 5) || glibc.is_some_and(|v| v < (2, 39)) || musl,
+
             // statx mask and attribute bits
             "STATX_MNT_ID_UNIQUE" => kernel < (6, 8),
             "STATX_SUBVOL" => kernel < (6, 10),
@@ -4864,10 +4866,6 @@ fn test_linux(t: &Target) {
                 }
             }
 
-            // FIXME(musl): This value is not yet in musl.
-            // eabihf targets are tested using an older version of glibc
-            "AT_HANDLE_FID" if musl || eabihf => true,
-
             // Added in 7.2
             "FUTEX_ROBUST_UNLOCK" => kernel < (7, 2),
             "FUTEX_ROBUST_LIST32" => kernel < (7, 2),