| //===-- source/Host/linux/Host.cpp ------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // C Includes |
| #include <stdio.h> |
| #include <sys/utsname.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| |
| |
| // C++ Includes |
| // Other libraries and framework includes |
| // Project includes |
| #include "lldb/Core/Error.h" |
| #include "lldb/Target/Process.h" |
| |
| #include "lldb/Host/Host.h" |
| #include "lldb/Core/DataBufferHeap.h" |
| #include "lldb/Core/DataExtractor.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| bool |
| Host::GetOSVersion(uint32_t &major, |
| uint32_t &minor, |
| uint32_t &update) |
| { |
| struct utsname un; |
| int status; |
| |
| if (uname(&un)) |
| return false; |
| |
| status = sscanf(un.release, "%u.%u.%u", &major, &minor, &update); |
| return status == 3; |
| } |
| |
| Error |
| Host::LaunchProcess (ProcessLaunchInfo &launch_info) |
| { |
| Error error; |
| assert(!"Not implemented yet!!!"); |
| return error; |
| } |
| |
| lldb::DataBufferSP |
| Host::GetAuxvData(lldb_private::Process *process) |
| { |
| static const size_t path_size = 128; |
| static char path[path_size]; |
| lldb::DataBufferSP buf_sp; |
| |
| int fd; |
| |
| // Ideally, we would simply create a FileSpec and call ReadFileContents. |
| // However, files in procfs have zero size (since they are, in general, |
| // dynamically generated by the kernel) which is incompatible with the |
| // current ReadFileContents implementation. Therefore we simply stream the |
| // data into a DataBuffer ourselves. |
| if (snprintf(path, path_size, "/proc/%d/auxv", process->GetID()) < 0) |
| return buf_sp; |
| |
| if ((fd = open(path, O_RDONLY, 0)) < 0) |
| return buf_sp; |
| |
| size_t bytes_read = 0; |
| std::auto_ptr<DataBufferHeap> buf_ap(new DataBufferHeap(1024, 0)); |
| for (;;) |
| { |
| size_t avail = buf_ap->GetByteSize() - bytes_read; |
| ssize_t status = read(fd, buf_ap->GetBytes() + bytes_read, avail); |
| |
| if (status < 0) |
| break; |
| |
| bytes_read += status; |
| |
| if (status == 0) |
| { |
| buf_ap->SetByteSize(bytes_read); |
| buf_sp.reset(buf_ap.release()); |
| break; |
| } |
| |
| if (avail - status == 0) |
| buf_ap->SetByteSize(2 * buf_ap->GetByteSize()); |
| } |
| |
| return buf_sp; |
| } |