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authorEd Maste <emaste@FreeBSD.org>2014-11-25 21:00:58 +0000
committerEd Maste <emaste@FreeBSD.org>2014-11-25 21:00:58 +0000
commit0cac4ca3916ac24ab6139d03cbfd18db9e715bfe (patch)
treec94307da318be46e5aeea1a325c1e91749506e4f /source/Host/posix/HostInfoPosix.cpp
parent03b99097822ca3ac69252d9afae716a584ed56c4 (diff)
downloadsrc-0cac4ca3916ac24ab6139d03cbfd18db9e715bfe.tar.gz
src-0cac4ca3916ac24ab6139d03cbfd18db9e715bfe.zip
Import LLDB as of upstream SVN r216948 (git 50f7fe44)vendor/lldb/lldb-r216948
This corresponds with the branchpoint for the 3.5 release. A number of files not required for the FreeBSD build have been removed. Sponsored by: DARPA, AFRL
Notes
Notes: svn path=/vendor/lldb/dist/; revision=275072 svn path=/vendor/lldb/lldb-r216948/; revision=275074; tag=vendor/lldb/lldb-r216948
Diffstat (limited to 'source/Host/posix/HostInfoPosix.cpp')
-rw-r--r--source/Host/posix/HostInfoPosix.cpp193
1 files changed, 193 insertions, 0 deletions
diff --git a/source/Host/posix/HostInfoPosix.cpp b/source/Host/posix/HostInfoPosix.cpp
new file mode 100644
index 000000000000..77fdc2b61a31
--- /dev/null
+++ b/source/Host/posix/HostInfoPosix.cpp
@@ -0,0 +1,193 @@
+//===-- HostInfoPosix.cpp ---------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-python.h"
+
+#include "lldb/Core/Log.h"
+#include "lldb/Host/posix/HostInfoPosix.h"
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Support/raw_ostream.h"
+
+#include <grp.h>
+#include <limits.h>
+#include <netdb.h>
+#include <pwd.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+using namespace lldb_private;
+
+size_t
+HostInfoPosix::GetPageSize()
+{
+ return ::getpagesize();
+}
+
+bool
+HostInfoPosix::GetHostname(std::string &s)
+{
+ char hostname[PATH_MAX];
+ hostname[sizeof(hostname) - 1] = '\0';
+ if (::gethostname(hostname, sizeof(hostname) - 1) == 0)
+ {
+ struct hostent *h = ::gethostbyname(hostname);
+ if (h)
+ s.assign(h->h_name);
+ else
+ s.assign(hostname);
+ return true;
+ }
+ return false;
+}
+
+const char *
+HostInfoPosix::LookupUserName(uint32_t uid, std::string &user_name)
+{
+ struct passwd user_info;
+ struct passwd *user_info_ptr = &user_info;
+ char user_buffer[PATH_MAX];
+ size_t user_buffer_size = sizeof(user_buffer);
+ if (::getpwuid_r(uid, &user_info, user_buffer, user_buffer_size, &user_info_ptr) == 0)
+ {
+ if (user_info_ptr)
+ {
+ user_name.assign(user_info_ptr->pw_name);
+ return user_name.c_str();
+ }
+ }
+ user_name.clear();
+ return NULL;
+}
+
+const char *
+HostInfoPosix::LookupGroupName(uint32_t gid, std::string &group_name)
+{
+ char group_buffer[PATH_MAX];
+ size_t group_buffer_size = sizeof(group_buffer);
+ struct group group_info;
+ struct group *group_info_ptr = &group_info;
+ // Try the threadsafe version first
+ if (::getgrgid_r(gid, &group_info, group_buffer, group_buffer_size, &group_info_ptr) == 0)
+ {
+ if (group_info_ptr)
+ {
+ group_name.assign(group_info_ptr->gr_name);
+ return group_name.c_str();
+ }
+ }
+ else
+ {
+ // The threadsafe version isn't currently working for me on darwin, but the non-threadsafe version
+ // is, so I am calling it below.
+ group_info_ptr = ::getgrgid(gid);
+ if (group_info_ptr)
+ {
+ group_name.assign(group_info_ptr->gr_name);
+ return group_name.c_str();
+ }
+ }
+ group_name.clear();
+ return NULL;
+}
+
+uint32_t
+HostInfoPosix::GetUserID()
+{
+ return getuid();
+}
+
+uint32_t
+HostInfoPosix::GetGroupID()
+{
+ return getgid();
+}
+
+uint32_t
+HostInfoPosix::GetEffectiveUserID()
+{
+ return geteuid();
+}
+
+uint32_t
+HostInfoPosix::GetEffectiveGroupID()
+{
+ return getegid();
+}
+
+bool
+HostInfoPosix::ComputeSupportExeDirectory(FileSpec &file_spec)
+{
+ Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
+
+ FileSpec lldb_file_spec;
+ if (!GetLLDBPath(lldb::ePathTypeLLDBShlibDir, lldb_file_spec))
+ return false;
+
+ char raw_path[PATH_MAX];
+ lldb_file_spec.GetPath(raw_path, sizeof(raw_path));
+
+ // Most Posix systems (e.g. Linux/*BSD) will attempt to replace a */lib with */bin as the base
+ // directory for helper exe programs. This will fail if the /lib and /bin directories are
+ // rooted in entirely different trees.
+ if (log)
+ log->Printf("HostInfoPosix::ComputeSupportExeDirectory() attempting to derive the bin path (ePathTypeSupportExecutableDir) from "
+ "this path: %s",
+ raw_path);
+ char *lib_pos = ::strstr(raw_path, "/lib");
+ if (lib_pos != nullptr)
+ {
+ // First terminate the raw path at the start of lib.
+ *lib_pos = '\0';
+
+ // Now write in bin in place of lib.
+ ::strncpy(lib_pos, "/bin", PATH_MAX - (lib_pos - raw_path));
+
+ if (log)
+ log->Printf("Host::%s() derived the bin path as: %s", __FUNCTION__, raw_path);
+ }
+ else
+ {
+ if (log)
+ log->Printf("Host::%s() failed to find /lib/liblldb within the shared lib path, bailing on bin path construction",
+ __FUNCTION__);
+ }
+ file_spec.GetDirectory().SetCString(raw_path);
+ return (bool)file_spec.GetDirectory();
+}
+
+bool
+HostInfoPosix::ComputeHeaderDirectory(FileSpec &file_spec)
+{
+ FileSpec temp_file("/opt/local/include/lldb", false);
+ file_spec.GetDirectory().SetCString(temp_file.GetPath().c_str());
+ return true;
+}
+
+bool
+HostInfoPosix::ComputePythonDirectory(FileSpec &file_spec)
+{
+ FileSpec lldb_file_spec;
+ if (!GetLLDBPath(lldb::ePathTypeLLDBShlibDir, lldb_file_spec))
+ return false;
+
+ char raw_path[PATH_MAX];
+ lldb_file_spec.GetPath(raw_path, sizeof(raw_path));
+
+ llvm::SmallString<256> python_version_dir;
+ llvm::raw_svector_ostream os(python_version_dir);
+ os << "/python" << PY_MAJOR_VERSION << '.' << PY_MINOR_VERSION << "/site-packages";
+ os.flush();
+
+ // We may get our string truncated. Should we protect this with an assert?
+ ::strncat(raw_path, python_version_dir.c_str(), sizeof(raw_path) - strlen(raw_path) - 1);
+
+ file_spec.GetDirectory().SetCString(raw_path);
+ return true;
+}