maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[lldb] Make that we can call HostInfo::Initialize and HostInfo::Terminate multiple times 

Summary:
HostInfo's state isn't actually fully rested after calling ::Terminate. Currently we only reset the
values of all the `HostInfoBaseFields` but not all the variables with static storage that
keep track of whether the fields need to be initialised. This breaks random unit tests as running
them twice (or running multiple test instances in one run) will cause that the second time
we ask HostInfo for any information we get the default value back for any field.

This patch moves all the once_flag's into the `HostInfoBaseFields` so that they also get reseted
by ::Terminate and removes all the `success` bools. We should also rewrite half this code but
I would prefer if my tests aren't broken over the holidays so let's just put some duct tape on it
for now.

Reviewers: labath

Reviewed By: labath

Subscribers: abidh, JDevlieghere, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D71748
This commit is contained in:
Raphael Isemann 2019-12-20 12:38:49 +01:00
parent be2b7ea89a
commit b2371791fc
1 changed files with 41 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
lldb/source/Host/common/HostInfoBase.cpp
View File

@ -47,18 +47,28 @@ struct HostInfoBaseFields {
}
}
llvm::once_flag m_host_triple_once;
std::string m_host_triple;
llvm::once_flag m_host_arch_once;
ArchSpec m_host_arch_32;
ArchSpec m_host_arch_64;
llvm::once_flag m_lldb_so_dir_once;
FileSpec m_lldb_so_dir;
llvm::once_flag m_lldb_support_exe_dir_once;
FileSpec m_lldb_support_exe_dir;
llvm::once_flag m_lldb_headers_dir_once;
FileSpec m_lldb_headers_dir;
llvm::once_flag m_lldb_clang_resource_dir_once;
FileSpec m_lldb_clang_resource_dir;
llvm::once_flag m_lldb_system_plugin_dir_once;
FileSpec m_lldb_system_plugin_dir;
llvm::once_flag m_lldb_user_plugin_dir_once;
FileSpec m_lldb_user_plugin_dir;
llvm::once_flag m_lldb_process_tmp_dir_once;
FileSpec m_lldb_process_tmp_dir;
llvm::once_flag m_lldb_global_tmp_dir_once;
FileSpec m_lldb_global_tmp_dir;
};
@ -73,8 +83,7 @@ void HostInfoBase::Terminate() {
}
llvm::StringRef HostInfoBase::GetTargetTriple() {
static llvm::once_flag g_once_flag;
llvm::call_once(g_once_flag, []() {
llvm::call_once(g_fields->m_host_triple_once, []() {
g_fields->m_host_triple =
HostInfo::GetArchitecture().GetTriple().getTriple();
});
@ -82,8 +91,7 @@ llvm::StringRef HostInfoBase::GetTargetTriple() {
}
const ArchSpec &HostInfoBase::GetArchitecture(ArchitectureKind arch_kind) {
static llvm::once_flag g_once_flag;
llvm::call_once(g_once_flag, []() {
llvm::call_once(g_fields->m_host_arch_once, []() {
HostInfo::ComputeHostArchitectureSupport(g_fields->m_host_arch_32,
g_fields->m_host_arch_64);
});
@ -108,87 +116,76 @@ llvm::Optional<HostInfoBase::ArchitectureKind> HostInfoBase::ParseArchitectureKi
}
FileSpec HostInfoBase::GetShlibDir() {
static llvm::once_flag g_once_flag;
static bool success = false;
llvm::call_once(g_once_flag, []() {
success = HostInfo::ComputeSharedLibraryDirectory(g_fields->m_lldb_so_dir);
llvm::call_once(g_fields->m_lldb_so_dir_once, []() {
if (!HostInfo::ComputeSharedLibraryDirectory(g_fields->m_lldb_so_dir))
g_fields->m_lldb_so_dir = FileSpec();
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
LLDB_LOG(log, "shlib dir -> `{0}`", g_fields->m_lldb_so_dir);
});
return success ? g_fields->m_lldb_so_dir : FileSpec();
return g_fields->m_lldb_so_dir;
}
FileSpec HostInfoBase::GetSupportExeDir() {
static llvm::once_flag g_once_flag;
static bool success = false;
llvm::call_once(g_once_flag, []() {
success =
HostInfo::ComputeSupportExeDirectory(g_fields->m_lldb_support_exe_dir);
llvm::call_once(g_fields->m_lldb_support_exe_dir_once, []() {
if (!HostInfo::ComputeSupportExeDirectory(g_fields->m_lldb_support_exe_dir))
g_fields->m_lldb_support_exe_dir = FileSpec();
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
LLDB_LOG(log, "support exe dir -> `{0}`", g_fields->m_lldb_support_exe_dir);
});
return success ? g_fields->m_lldb_support_exe_dir : FileSpec();
return g_fields->m_lldb_support_exe_dir;
}
FileSpec HostInfoBase::GetHeaderDir() {
static llvm::once_flag g_once_flag;
static bool success = false;
llvm::call_once(g_once_flag, []() {
success = HostInfo::ComputeHeaderDirectory(g_fields->m_lldb_headers_dir);
llvm::call_once(g_fields->m_lldb_headers_dir_once, []() {
if (!HostInfo::ComputeHeaderDirectory(g_fields->m_lldb_headers_dir))
g_fields->m_lldb_headers_dir = FileSpec();
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
LLDB_LOG(log, "header dir -> `{0}`", g_fields->m_lldb_headers_dir);
});
return success ? g_fields->m_lldb_headers_dir : FileSpec();
return g_fields->m_lldb_headers_dir;
}
FileSpec HostInfoBase::GetSystemPluginDir() {
static llvm::once_flag g_once_flag;
static bool success = false;
llvm::call_once(g_once_flag, []() {
success = HostInfo::ComputeSystemPluginsDirectory(
g_fields->m_lldb_system_plugin_dir);
llvm::call_once(g_fields->m_lldb_system_plugin_dir_once, []() {
if (!HostInfo::ComputeSystemPluginsDirectory(g_fields->m_lldb_system_plugin_dir))
g_fields->m_lldb_system_plugin_dir = FileSpec();
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
LLDB_LOG(log, "system plugin dir -> `{0}`",
g_fields->m_lldb_system_plugin_dir);
});
return success ? g_fields->m_lldb_system_plugin_dir : FileSpec();
return g_fields->m_lldb_system_plugin_dir;
}
FileSpec HostInfoBase::GetUserPluginDir() {
static llvm::once_flag g_once_flag;
static bool success = false;
llvm::call_once(g_once_flag, []() {
success =
HostInfo::ComputeUserPluginsDirectory(g_fields->m_lldb_user_plugin_dir);
llvm::call_once(g_fields->m_lldb_user_plugin_dir_once, []() {
if (!HostInfo::ComputeUserPluginsDirectory(g_fields->m_lldb_user_plugin_dir))
g_fields->m_lldb_user_plugin_dir = FileSpec();
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
LLDB_LOG(log, "user plugin dir -> `{0}`", g_fields->m_lldb_user_plugin_dir);
});
return success ? g_fields->m_lldb_user_plugin_dir : FileSpec();
return g_fields->m_lldb_user_plugin_dir;
}
FileSpec HostInfoBase::GetProcessTempDir() {
static llvm::once_flag g_once_flag;
static bool success = false;
llvm::call_once(g_once_flag, []() {
success = HostInfo::ComputeProcessTempFileDirectory(
g_fields->m_lldb_process_tmp_dir);
llvm::call_once(g_fields->m_lldb_process_tmp_dir_once, []() {
if (!HostInfo::ComputeProcessTempFileDirectory( g_fields->m_lldb_process_tmp_dir))
g_fields->m_lldb_process_tmp_dir = FileSpec();
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
LLDB_LOG(log, "process temp dir -> `{0}`",
g_fields->m_lldb_process_tmp_dir);
});
return success ? g_fields->m_lldb_process_tmp_dir : FileSpec();
return g_fields->m_lldb_process_tmp_dir;
}
FileSpec HostInfoBase::GetGlobalTempDir() {
static llvm::once_flag g_once_flag;
static bool success = false;
llvm::call_once(g_once_flag, []() {
success = HostInfo::ComputeGlobalTempFileDirectory(
g_fields->m_lldb_global_tmp_dir);
llvm::call_once(g_fields->m_lldb_global_tmp_dir_once, []() {
if (!HostInfo::ComputeGlobalTempFileDirectory( g_fields->m_lldb_global_tmp_dir))
g_fields->m_lldb_global_tmp_dir = FileSpec();
Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST);
LLDB_LOG(log, "global temp dir -> `{0}`", g_fields->m_lldb_global_tmp_dir);
});
return success ? g_fields->m_lldb_global_tmp_dir : FileSpec();
return g_fields->m_lldb_global_tmp_dir;
}
ArchSpec HostInfoBase::GetAugmentedArchSpec(llvm::StringRef triple) {