diff options
Diffstat (limited to 'gitlab/issues/target_missing/host_s390/accel_missing')
| -rw-r--r-- | gitlab/issues/target_missing/host_s390/accel_missing/1934.toml | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gitlab/issues/target_missing/host_s390/accel_missing/1934.toml b/gitlab/issues/target_missing/host_s390/accel_missing/1934.toml new file mode 100644 index 00000000..9987d576 --- /dev/null +++ b/gitlab/issues/target_missing/host_s390/accel_missing/1934.toml @@ -0,0 +1,36 @@ +id = 1934 +title = "Build failure on s390x with Clang 17 due to int128 alignment used in `__sync_` operations" +state = "closed" +created_at = "2023-10-13T07:22:59.508Z" +closed_at = "2023-11-13T09:39:18.550Z" +labels = ["Build System", "host: s390", "workflow::Patch available"] +url = "https://gitlab.com/qemu-project/qemu/-/issues/1934" +host-os = "n/a" +host-arch = "n/a" +qemu-version = "n/a" +guest-os = "n/a" +guest-arch = "n/a" +description = """We experienced this downstream, but filing this here since the code still seems to be the same in git. + +https://reviews.llvm.org/D143813 introduced this warning since, according to the description, `__int128` +needs to be 8-byte aligned on s390 but the code in `host/include/generic/host/atomic128-ldst.h` unconditionally uses 16-byte alignment. + +The output is: + +``` +In file included from ../accel/tcg/cputlb.c:32: +In file included from /builddir/build/BUILD/qemu-8.1.0/include/exec/helper-proto-common.h:10: +In file included from /builddir/build/BUILD/qemu-8.1.0/include/qemu/atomic128.h:62: +/builddir/build/BUILD/qemu-8.1.0/host/include/generic/host/atomic128-ldst.h:68:15: error: __sync builtin operation MUST have natural alignment (consider using __atomic). [-Werror,-Wsync-alignment] + 68 | } while (!__sync_bool_compare_and_swap_16(ptr_align, old, new.i)); + | ^ +In file included from ../accel/tcg/cputlb.c:32: +In file included from /builddir/build/BUILD/qemu-8.1.0/include/exec/helper-proto-common.h:10: +In file included from /builddir/build/BUILD/qemu-8.1.0/include/qemu/atomic128.h:61: +/builddir/build/BUILD/qemu-8.1.0/host/include/generic/host/atomic128-cas.h:36:11: error: __sync builtin operation MUST have natural alignment (consider using __atomic). [-Werror,-Wsync-alignment] + 36 | r.i = __sync_val_compare_and_swap_16(ptr_align, c.i, n.i); + | ^ +2 errors generated. +```""" +reproduce = "n/a" +additional = "n/a" |