Add 'projects/rocprofiler-sdk/' from commit 'bf0fad1d5406fbc51403ba1aa9621a9d4a9bce2b'

git-subtree-dir: projects/rocprofiler-sdk
git-subtree-mainline: 50a90550e9
git-subtree-split: bf0fad1d54

projects/rocprofiler-sdk/source/lib/common/utility.cpp

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+// MIT License
+//
+// Copyright (c) 2023-2025 Advanced Micro Devices, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+#include "lib/common/utility.hpp"
+#include "lib/common/defines.hpp"
+#include "lib/common/logging.hpp"
+
+#include <unistd.h>
+#include <cerrno>
+#include <cstring>
+#include <ctime>
+#include <fstream>
+#include <sstream>
+#include <string>
+#include <vector>
+
+namespace rocprofiler
+{
+namespace common
+{
+namespace
+{
+std::string_view
+get_clock_name(clockid_t _id)
+{
+#define CLOCK_NAME_CASE_STATEMENT(NAME)                                                            \
+    case NAME: return #NAME;
+    switch(_id)
+    {
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_REALTIME)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_MONOTONIC)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_PROCESS_CPUTIME_ID)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_THREAD_CPUTIME_ID)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_MONOTONIC_RAW)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_REALTIME_COARSE)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_MONOTONIC_COARSE)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_BOOTTIME)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_REALTIME_ALARM)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_BOOTTIME_ALARM)
+        CLOCK_NAME_CASE_STATEMENT(CLOCK_TAI)
+        default: break;
+    }
+    return "CLOCK_UNKNOWN";
+#undef CLOCK_NAME_CASE_STATEMENT
+}
+
+auto _process_init_ns = timestamp_ns();
+}  // namespace
+
+uint64_t
+get_clock_period_ns_impl(clockid_t _clk_id)
+{
+    constexpr auto nanosec = std::nano::den;
+
+    struct timespec ts;
+    auto            ret = clock_getres(_clk_id, &ts);
+
+    if(ROCPROFILER_UNLIKELY(ret != 0))
+    {
+        auto _err = errno;
+        ROCP_FATAL << "error getting clock resolution for " << get_clock_name(_clk_id) << ": "
+                   << strerror(_err);
+    }
+    else if(ROCPROFILER_UNLIKELY(ts.tv_sec != 0 ||
+                                 ts.tv_nsec >= std::numeric_limits<uint32_t>::max()))
+    {
+        ROCP_FATAL << "clock_getres(" << get_clock_name(_clk_id)
+                   << ") returned very low frequency (<1Hz)";
+    }
+
+    return (static_cast<uint64_t>(ts.tv_sec) * nanosec) + static_cast<uint64_t>(ts.tv_nsec);
+}
+
+uint64_t
+get_process_start_time_ns(pid_t _pid)
+{
+    if(_pid == getpid()) return _process_init_ns;
+    return 0;
+}
+
+std::vector<std::string>
+read_command_line(pid_t _pid)
+{
+    auto _cmdline = std::vector<std::string>{};
+    auto fcmdline = std::stringstream{};
+    fcmdline << "/proc/" << _pid << "/cmdline";
+    auto ifs = std::ifstream{fcmdline.str().c_str()};
+    if(ifs)
+    {
+        char        cstr;
+        std::string sarg;
+        while(!ifs.eof())
+        {
+            ifs >> cstr;
+            if(!ifs.eof())
+            {
+                if(cstr != '\0')
+                {
+                    sarg += cstr;
+                }
+                else
+                {
+                    _cmdline.push_back(sarg);
+                    sarg = "";
+                }
+            }
+        }
+        ifs.close();
+    }
+
+    return _cmdline;
+}
+}  // namespace common
+}  // namespace rocprofiler
+
+namespace
+{
+std::atomic<bool>&
+debugger_block()
+{
+    static std::atomic<bool> block = {true};
+    return block;
+}
+}  // namespace
+
+extern "C" {
+void
+rocprofiler_debugger_block()
+{
+    while(debugger_block().load() == true)
+    {};
+    // debugger_block().exchange(true);
+}
+
+void
+rocprofiler_debugger_continue()
+{
+    debugger_block().exchange(false);
+}
+}