[llvm] [libc][bazel] disable epoll_pwait2 (PR #80362)

[via llvm-commits]

https://github.com/michaelrj-google created https://github.com/llvm/llvm-project/pull/80362

Similar to #80051. The epoll_pwait2 syscall isn't available on all
target platforms, and this is causing downstream test failures. This
patch disables it until it can be detected whether or not it is
available.



>From 3155a18fc548d4fdd919641958f9493082bdeecf Mon Sep 17 00:00:00 2001
From: Michael Jones <michaelrj at google.com>
Date: Thu, 1 Feb 2024 15:00:20 -0800
Subject: [PATCH] [libc][bazel] disable epoll_pwait2

Similar to #80051. The epoll_pwait2 syscall isn't available on all
target platforms, and this is causing downstream test failures. This
patch disables it until it can be detected whether or not it is
available.
---
 .../llvm-project-overlay/libc/BUILD.bazel     | 20 ++++++++++---------
 .../libc/test/src/sys/epoll/BUILD.bazel       | 16 ++++++++-------
 2 files changed, 20 insertions(+), 16 deletions(-)

diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index 14b3c29b5824a..f1fe823354ed7 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -3218,12 +3218,14 @@ libc_function(
     ],
 )
 
-libc_function(
-    name = "epoll_pwait2",
-    srcs = ["src/sys/epoll/linux/epoll_pwait2.cpp"],
-    hdrs = ["src/sys/epoll/epoll_pwait2.h"],
-    deps = [
-        ":__support_osutil_syscall",
-        ":errno",
-    ],
-)
+#TODO: Enable once epoll_pwait2 availablilty can be checked first.
+# https://github.com/llvm/llvm-project/issues/80060
+# libc_function(
+#     name = "epoll_pwait2",
+#     srcs = ["src/sys/epoll/linux/epoll_pwait2.cpp"],
+#     hdrs = ["src/sys/epoll/epoll_pwait2.h"],
+#     deps = [
+#         ":__support_osutil_syscall",
+#         ":errno",
+#     ],
+# )
diff --git a/utils/bazel/llvm-project-overlay/libc/test/src/sys/epoll/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/test/src/sys/epoll/BUILD.bazel
index e0afce60e6bc2..e6b63235757e5 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/src/sys/epoll/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/test/src/sys/epoll/BUILD.bazel
@@ -26,10 +26,12 @@ libc_test(
     ],
 )
 
-libc_test(
-    name = "epoll_pwait2_test",
-    srcs = ["linux/epoll_pwait2_test.cpp"],
-    libc_function_deps = [
-        "//libc:epoll_pwait2",
-    ],
-)
+#TODO: Enable once epoll_pwait2 availablilty can be checked first.
+# https://github.com/llvm/llvm-project/issues/80060
+# libc_test(
+#     name = "epoll_pwait2_test",
+#     srcs = ["linux/epoll_pwait2_test.cpp"],
+#     libc_function_deps = [
+#         "//libc:epoll_pwait2",
+#     ],
+# )