Author: Yi Kong Date: 2022-06-28T20:23:33+08:00 New Revision: b83b82f9f431f20ae35cb3b11443049e31a71481
URL: https://github.com/llvm/llvm-project/commit/b83b82f9f431f20ae35cb3b11443049e31a71481 DIFF: https://github.com/llvm/llvm-project/commit/b83b82f9f431f20ae35cb3b11443049e31a71481.diff LOG: [lldb] Fix build on older Linux kernel versions PERF_COUNT_SW_DUMMY is introduced in Linux 3.12. Differential Revision: https://reviews.llvm.org/D128707 Added: Modified: lldb/source/Plugins/Process/Linux/Perf.cpp Removed: ################################################################################ diff --git a/lldb/source/Plugins/Process/Linux/Perf.cpp b/lldb/source/Plugins/Process/Linux/Perf.cpp index bc2038c371712..fa4e8fb42e6cd 100644 --- a/lldb/source/Plugins/Process/Linux/Perf.cpp +++ b/lldb/source/Plugins/Process/Linux/Perf.cpp @@ -15,6 +15,7 @@ #include "llvm/Support/MathExtras.h" #include "llvm/Support/MemoryBuffer.h" +#include <linux/version.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <sys/syscall.h> @@ -26,6 +27,7 @@ using namespace llvm; Expected<LinuxPerfZeroTscConversion> lldb_private::process_linux::LoadPerfTscConversionParameters() { +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0) lldb::pid_t pid = getpid(); perf_event_attr attr; memset(&attr, 0, sizeof(attr)); @@ -55,6 +57,10 @@ lldb_private::process_linux::LoadPerfTscConversionParameters() { err_cap); return llvm::createStringError(llvm::inconvertibleErrorCode(), err_msg); } +#else + std::string err_msg = "PERF_COUNT_SW_DUMMY requires Linux 3.12"; + return llvm::createStringError(llvm::inconvertibleErrorCode(), err_msg); +#endif } void resource_handle::MmapDeleter::operator()(void *ptr) { _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
