carbon-lang/bazel/libpfm/0001-Introduce-a-simple-native-Bazel-build.patch

From 04fb28b5673d29a8c38519845c87f4c00c76e9cf Mon Sep 17 00:00:00 2001
From: Chandler Carruth <chandlerc@gmail.com>
Date: Sat, 13 Jan 2024 02:15:19 -0800
Subject: [PATCH] Introduce a simple native Bazel build.

---
 BUILD.bazel     | 84 +++++++++++++++++++++++++++++++++++++++++++++++++
 MODULE.bazel    | 10 ++++++
 WORKSPACE.bazel |  5 +++
 3 files changed, 99 insertions(+)
 create mode 100644 BUILD.bazel
 create mode 100644 MODULE.bazel
 create mode 100644 WORKSPACE.bazel

diff --git a/BUILD.bazel b/BUILD.bazel
new file mode 100644
index 0000000..427c854
--- /dev/null
+++ b/BUILD.bazel
@@ -0,0 +1,84 @@
+# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
+# Exceptions. See /LICENSE for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+load("@rules_cc//cc:defs.bzl", "cc_library")
+
+package(default_visibility = ["//visibility:public"])
+
+aarch64_srcs = [
+    "lib/pfmlib_arm_perf_event.c",
+    "lib/pfmlib_arm.c",
+    "lib/pfmlib_arm_armv8.c",
+    "lib/pfmlib_arm_armv9.c",
+    "lib/pfmlib_tx2_unc_perf_event.c",
+    "lib/pfmlib_kunpeng_unc_perf_event.c",
+    "lib/pfmlib_arm_priv.h",
+    "lib/events/arm_cortex_a57_events.h",
+    "lib/events/arm_cortex_a53_events.h",
+    "lib/events/arm_xgene_events.h",
+    "lib/events/arm_cavium_tx2_events.h",
+    "lib/events/arm_marvell_tx2_unc_events.h",
+    "lib/events/arm_fujitsu_a64fx_events.h",
+    "lib/events/arm_neoverse_n1_events.h",
+    "lib/events/arm_neoverse_n2_events.h",
+    "lib/events/arm_neoverse_v1_events.h",
+    "lib/events/arm_neoverse_v2_events.h",
+    "lib/events/arm_hisilicon_kunpeng_events.h",
+    "lib/events/arm_hisilicon_kunpeng_unc_events.h",
+]
+
+x86_64_srcs = [
+    "lib/pfmlib_amd64_priv.h",
+] + glob(
+    [
+        "lib/pfmlib_amd64*.c",
+        "lib/pfmlib_intel*.c",
+        "lib/pfmlib_intel*_priv.h",
+        "lib/events/amd64_events_*.h",
+        "lib/events/intel_*_events.h",
+    ],
+    exclude = [
+        # 32-bit CPUs
+        "lib/pfmlib_intel_coreduo.c",
+        "lib/pfmlib_intel_p6.c",
+    ],
+)
+
+cc_library(
+    name = "libpfm",
+    srcs = [
+        "lib/events/perf_events.h",
+        "lib/pfmlib_common.c",
+        "lib/pfmlib_perf_event.c",
+        "lib/pfmlib_perf_event_pmu.c",
+        "lib/pfmlib_perf_event_priv.h",
+        "lib/pfmlib_perf_event_raw.c",
+        "lib/pfmlib_priv.h",
+    ] + select({
+        "@platforms//cpu:aarch64": aarch64_srcs,
+        "@platforms//cpu:x86_64": x86_64_srcs,
+    }),
+    hdrs = glob(["include/perfmon/*.h"]),
+    copts = [
+        "-DHAS_OPENAT",
+        "-D_REENTRANT",
+        "-I.",
+        "-fvisibility=hidden",
+    ] + select({
+        "@platforms//cpu:x86_64": [
+            "-DCONFIG_PFMLIB_ARCH_X86",
+            "-DCONFIG_PFMLIB_ARCH_X86_64",
+        ],
+        "//conditions:default": [],
+    }),
+    strip_include_prefix = "include",
+    target_compatible_with = select({
+        # This library only makes sense on Linux, and we only include support
+        # for building on AArch64 and x86-64. Other CPUs can be added to this
+        # list if build support is added for them.
+        "@platforms//cpu:aarch64": ["@platforms//os:linux"],
+        "@platforms//cpu:x86_64": ["@platforms//os:linux"],
+        "//conditions:default": ["@platforms//:incompatible"],
+    }),
+)
diff --git a/MODULE.bazel b/MODULE.bazel
new file mode 100644
index 0000000..c901cbe
--- /dev/null
+++ b/MODULE.bazel
@@ -0,0 +1,10 @@
+# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
+# Exceptions. See /LICENSE for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+"""Bazel modules."""
+
+module(name = "libpfm")
+
+bazel_dep(name = "rules_cc", version = "0.0.9")
+bazel_dep(name = "platforms", version = "0.0.8")
diff --git a/WORKSPACE.bazel b/WORKSPACE.bazel
new file mode 100644
index 0000000..9aad57c
--- /dev/null
+++ b/WORKSPACE.bazel
@@ -0,0 +1,5 @@
+# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
+# Exceptions. See /LICENSE for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+# See `MODULE.bazel` for details.
--
2.43.0