Update CI to QEMU 8.1.0. (#843)

* Update CI to QEMU 8.1.0.

* Patch qemu to properly handle `O_LARGEFILE` on aarch64.

* Remove a redundant ubuntu-1.63 from the CI.

* Patch qemu to properly handle `TCGETS2` on powerpc.

And in the libc backend, ensure that input_speed and output_speed
are set after a `tcgetattr` call.

And, work around the fact that even with the patches, QEMU is still
not setting `input_speed`/`output_speed` in `TCGETS2`, so set them
manually when we can.

Author: sunfishcode

.github/workflows/main.yml

@@ -225,12 +225,12 @@ jobs:
     name: Test
     runs-on: ${{ matrix.os }}
     env:
-      QEMU_BUILD_VERSION: 8.0.2
+      QEMU_BUILD_VERSION: 8.1.0
       # Enabling testing of experimental features.
       RUSTFLAGS: --cfg rustix_use_experimental_features
     strategy:
       matrix:
-        build: [ubuntu, ubuntu-20.04, i686-linux, aarch64-linux, powerpc64le-linux, riscv64-linux, s390x-linux, arm-linux, ubuntu-stable, ubuntu-1.63, i686-linux-stable, aarch64-linux-stable, riscv64-linux-stable, s390x-linux-stable, powerpc64le-linux-stable, arm-linux-stable, ubuntu-1.63, i686-linux-1.63, aarch64-linux-1.63, riscv64-linux-1.63, s390x-linux-1.63, powerpc64le-linux-1.63, arm-linux-1.63, macos-latest, macos-11, windows, windows-2019]
+        build: [ubuntu, ubuntu-20.04, i686-linux, aarch64-linux, powerpc64le-linux, riscv64-linux, s390x-linux, arm-linux, ubuntu-stable, i686-linux-stable, aarch64-linux-stable, riscv64-linux-stable, s390x-linux-stable, powerpc64le-linux-stable, arm-linux-stable, ubuntu-1.63, i686-linux-1.63, aarch64-linux-1.63, riscv64-linux-1.63, s390x-linux-1.63, powerpc64le-linux-1.63, arm-linux-1.63, macos-latest, macos-11, windows, windows-2019]
         include:
           - build: ubuntu
             os: ubuntu-latest
@@ -470,6 +470,8 @@ jobs:
         patch -p1 < $GITHUB_WORKSPACE/ci/translate-errno.patch
         patch -p1 < $GITHUB_WORKSPACE/ci/getsockopt-timeouts.patch
         patch -p1 < $GITHUB_WORKSPACE/ci/s390x-stat-have-nsec.patch
+        patch -p1 < $GITHUB_WORKSPACE/ci/aarch64-o-largefile.patch
+        patch -p1 < $GITHUB_WORKSPACE/ci/tcgets2-tcsets2.patch
         ./configure --target-list=${{ matrix.qemu_target }} --prefix=${{ runner.tool_cache }}/qemu --disable-tools --disable-slirp --disable-fdt --disable-capstone --disable-docs
         ninja -C build install
       if: matrix.qemu != '' && matrix.os == 'ubuntu-latest'
@@ -542,7 +544,7 @@ jobs:
     env:
       # -D warnings is commented out in our install-rust action; re-add it here.
       RUSTFLAGS: -D warnings -D elided-lifetimes-in-paths
-      QEMU_BUILD_VERSION: 8.0.2
+      QEMU_BUILD_VERSION: 8.1.0
     steps:
     - uses: actions/checkout@v3
       with:
@@ -601,6 +603,8 @@ jobs:
         patch -p1 < $GITHUB_WORKSPACE/ci/translate-errno.patch
         patch -p1 < $GITHUB_WORKSPACE/ci/getsockopt-timeouts.patch
         patch -p1 < $GITHUB_WORKSPACE/ci/s390x-stat-have-nsec.patch
+        patch -p1 < $GITHUB_WORKSPACE/ci/aarch64-o-largefile.patch
+        patch -p1 < $GITHUB_WORKSPACE/ci/tcgets2-tcsets2.patch
         ./configure --target-list=${{ matrix.qemu_target }} --prefix=${{ runner.tool_cache }}/qemu --disable-tools --disable-slirp --disable-fdt --disable-capstone --disable-docs
         ninja -C build install
       if: matrix.qemu != '' && matrix.os == 'ubuntu-latest'
@@ -631,7 +635,7 @@ jobs:
       RUSTFLAGS: --cfg rustix_use_experimental_asm -D warnings -D elided-lifetimes-in-paths
       RUSTDOCFLAGS: --cfg rustix_use_experimental_asm
       CARGO_TARGET_POWERPC64LE_UNKNOWN_LINUX_GNU_RUSTFLAGS: --cfg rustix_use_experimental_asm
-      QEMU_BUILD_VERSION: 8.0.2
+      QEMU_BUILD_VERSION: 8.1.0
     steps:
     - uses: actions/checkout@v3
       with:
@@ -690,6 +694,8 @@ jobs:
         patch -p1 < $GITHUB_WORKSPACE/ci/translate-errno.patch
         patch -p1 < $GITHUB_WORKSPACE/ci/getsockopt-timeouts.patch
         patch -p1 < $GITHUB_WORKSPACE/ci/s390x-stat-have-nsec.patch
+        patch -p1 < $GITHUB_WORKSPACE/ci/aarch64-o-largefile.patch
+        patch -p1 < $GITHUB_WORKSPACE/ci/tcgets2-tcsets2.patch
         ./configure --target-list=${{ matrix.qemu_target }} --prefix=${{ runner.tool_cache }}/qemu --disable-tools --disable-slirp --disable-fdt --disable-capstone --disable-docs
         ninja -C build install
       if: matrix.qemu != '' && matrix.os == 'ubuntu-latest'

ci/aarch64-o-largefile.patch

@@ -0,0 +1,17 @@
+From Dan Gohman <dev@sunfishcode.online>
+Subject: [PATCH] Correct the definition of `O_LARGEFILE` on aarch64
+
+This fixes `fcntl` with `F_GETFL` from spuriously returning `O_NOFOLLOW`
+on hosts such as x86_64.
+
+diff -ur a/linux-user/aarch64/target_fcntl.h b/linux-user/aarch64/target_fcntl.h
+--- a/linux-user/aarch64/target_fcntl.h
++++ b/linux-user/aarch64/target_fcntl.h
+@@ -11,6 +11,7 @@
+ #define TARGET_O_DIRECTORY      040000 /* must be a directory */
+ #define TARGET_O_NOFOLLOW      0100000 /* don't follow links */
+ #define TARGET_O_DIRECT        0200000 /* direct disk access hint */
++#define TARGET_O_LARGEFILE     0400000
+ 
+ #include "../generic/fcntl.h"
+ #endif