labath created this revision.
labath added a reviewer: JDevlieghere.
Herald added a project: All.
labath requested review of this revision.
Herald added a project: LLDB.

s/true/ArchSpec::ExactMatch
s/false/ArchSpec::CompatibleMatch


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121290

Files:
  lldb/include/lldb/Target/Platform.h
  lldb/include/lldb/Utility/ArchSpec.h
  lldb/source/Interpreter/OptionGroupPlatform.cpp
  lldb/source/Target/Platform.cpp
  lldb/source/Target/Process.cpp
  lldb/source/Target/Target.cpp
  lldb/source/Target/TargetList.cpp
  lldb/source/Utility/ArchSpec.cpp

Index: lldb/source/Utility/ArchSpec.cpp
===================================================================
--- lldb/source/Utility/ArchSpec.cpp
+++ lldb/source/Utility/ArchSpec.cpp
@@ -928,14 +928,6 @@
   return 0;
 }
 
-bool ArchSpec::IsExactMatch(const ArchSpec &rhs) const {
-  return IsEqualTo(rhs, true);
-}
-
-bool ArchSpec::IsCompatibleMatch(const ArchSpec &rhs) const {
-  return IsEqualTo(rhs, false);
-}
-
 static bool IsCompatibleEnvironment(llvm::Triple::EnvironmentType lhs,
                                     llvm::Triple::EnvironmentType rhs) {
   if (lhs == rhs)
@@ -967,11 +959,11 @@
   return false;
 }
 
-bool ArchSpec::IsEqualTo(const ArchSpec &rhs, bool exact_match) const {
+bool ArchSpec::IsMatch(const ArchSpec &rhs, MatchType match) const {
   // explicitly ignoring m_distribution_id in this method.
 
   if (GetByteOrder() != rhs.GetByteOrder() ||
-      !cores_match(GetCore(), rhs.GetCore(), true, exact_match))
+      !cores_match(GetCore(), rhs.GetCore(), true, match == ExactMatch))
     return false;
 
   const llvm::Triple &lhs_triple = GetTriple();
@@ -1000,7 +992,7 @@
   const llvm::Triple::EnvironmentType rhs_triple_env =
       rhs_triple.getEnvironment();
 
-  if (!exact_match) {
+  if (match == CompatibleMatch) {
     // x86_64-apple-ios-macabi, x86_64-apple-macosx are compatible, no match.
     if ((lhs_triple_os == llvm::Triple::IOS &&
          lhs_triple_env == llvm::Triple::MacABI &&
@@ -1027,8 +1019,9 @@
       return false;
 
     // If the pair of os+env is both unspecified, match any other os+env combo.
-    if (!exact_match && ((!lhs_os_specified && !lhs_triple.hasEnvironment()) ||
-                         (!rhs_os_specified && !rhs_triple.hasEnvironment())))
+    if (match == CompatibleMatch &&
+        ((!lhs_os_specified && !lhs_triple.hasEnvironment()) ||
+         (!rhs_os_specified && !rhs_triple.hasEnvironment())))
       return true;
   }
 
Index: lldb/source/Target/TargetList.cpp
===================================================================
--- lldb/source/Target/TargetList.cpp
+++ lldb/source/Target/TargetList.cpp
@@ -181,7 +181,8 @@
             // the selected platform otherwise.
             if (platform_sp) {
               if (platform_sp->IsCompatibleArchitecture(
-                      module_spec.GetArchitecture(), false, nullptr)) {
+                      module_spec.GetArchitecture(), ArchSpec::CompatibleMatch,
+                      nullptr)) {
                 platforms.push_back(platform_sp);
                 continue;
               }
@@ -193,7 +194,8 @@
                 (!platform_sp ||
                  host_platform_sp->GetName() != platform_sp->GetName())) {
               if (host_platform_sp->IsCompatibleArchitecture(
-                      module_spec.GetArchitecture(), false, nullptr)) {
+                      module_spec.GetArchitecture(), ArchSpec::CompatibleMatch,
+                      nullptr)) {
                 platforms.push_back(host_platform_sp);
                 continue;
               }
@@ -257,7 +259,8 @@
   // If we have a valid architecture, make sure the current platform is
   // compatible with that architecture.
   if (!prefer_platform_arch && arch.IsValid()) {
-    if (!platform_sp->IsCompatibleArchitecture(arch, false, nullptr)) {
+    if (!platform_sp->IsCompatibleArchitecture(arch, ArchSpec::CompatibleMatch,
+                                               nullptr)) {
       platform_sp = platform_list.GetOrCreate(arch, &platform_arch);
       if (platform_sp)
         platform_list.SetSelectedPlatform(platform_sp);
@@ -266,7 +269,8 @@
     // If "arch" isn't valid, yet "platform_arch" is, it means we have an
     // executable file with a single architecture which should be used.
     ArchSpec fixed_platform_arch;
-    if (!platform_sp->IsCompatibleArchitecture(platform_arch, false, nullptr)) {
+    if (!platform_sp->IsCompatibleArchitecture(
+            platform_arch, ArchSpec::CompatibleMatch, nullptr)) {
       platform_sp =
           platform_list.GetOrCreate(platform_arch, &fixed_platform_arch);
       if (platform_sp)
@@ -297,8 +301,8 @@
   ArchSpec arch(specified_arch);
 
   if (arch.IsValid()) {
-    if (!platform_sp ||
-        !platform_sp->IsCompatibleArchitecture(arch, false, nullptr))
+    if (!platform_sp || !platform_sp->IsCompatibleArchitecture(
+                            arch, ArchSpec::CompatibleMatch, nullptr))
       platform_sp =
           debugger.GetPlatformList().GetOrCreate(specified_arch, &arch);
   }
Index: lldb/source/Target/Target.cpp
===================================================================
--- lldb/source/Target/Target.cpp
+++ lldb/source/Target/Target.cpp
@@ -1469,8 +1469,8 @@
   if (set_platform) {
     if (other.IsValid()) {
       auto platform_sp = GetPlatform();
-      if (!platform_sp ||
-          !platform_sp->IsCompatibleArchitecture(other, false, nullptr)) {
+      if (!platform_sp || !platform_sp->IsCompatibleArchitecture(
+                              other, ArchSpec::CompatibleMatch, nullptr)) {
         ArchSpec platform_arch;
         if (PlatformSP arch_platform_sp =
                 GetDebugger().GetPlatformList().GetOrCreate(other,
Index: lldb/source/Target/Process.cpp
===================================================================
--- lldb/source/Target/Process.cpp
+++ lldb/source/Target/Process.cpp
@@ -2888,7 +2888,8 @@
   if (platform_sp) {
     const ArchSpec &target_arch = GetTarget().GetArchitecture();
     if (target_arch.IsValid() &&
-        !platform_sp->IsCompatibleArchitecture(target_arch, false, nullptr)) {
+        !platform_sp->IsCompatibleArchitecture(
+            target_arch, ArchSpec::CompatibleMatch, nullptr)) {
       ArchSpec platform_arch;
       platform_sp = GetTarget().GetDebugger().GetPlatformList().GetOrCreate(
           target_arch, &platform_arch);
Index: lldb/source/Target/Platform.cpp
===================================================================
--- lldb/source/Target/Platform.cpp
+++ lldb/source/Target/Platform.cpp
@@ -873,7 +873,8 @@
 
   ArchSpec compatible_arch;
   ArchSpec raw_arch(triple);
-  if (!IsCompatibleArchitecture(raw_arch, false, &compatible_arch))
+  if (!IsCompatibleArchitecture(raw_arch, ArchSpec::CompatibleMatch,
+                                &compatible_arch))
     return raw_arch;
 
   if (!compatible_arch.IsValid())
@@ -1099,15 +1100,13 @@
 /// Lets a platform answer if it is compatible with a given
 /// architecture and the target triple contained within.
 bool Platform::IsCompatibleArchitecture(const ArchSpec &arch,
-                                        bool exact_arch_match,
+                                        ArchSpec::MatchType match,
                                         ArchSpec *compatible_arch_ptr) {
   // If the architecture is invalid, we must answer true...
   if (arch.IsValid()) {
     ArchSpec platform_arch;
-    auto match = exact_arch_match ? &ArchSpec::IsExactMatch
-                                  : &ArchSpec::IsCompatibleMatch;
     for (const ArchSpec &platform_arch : GetSupportedArchitectures()) {
-      if ((arch.*match)(platform_arch)) {
+      if (arch.IsMatch(platform_arch, match)) {
         if (compatible_arch_ptr)
           *compatible_arch_ptr = platform_arch;
         return true;
@@ -1894,13 +1893,14 @@
   std::lock_guard<std::recursive_mutex> guard(m_mutex);
   // First try exact arch matches across all platforms already created
   for (const auto &platform_sp : m_platforms) {
-    if (platform_sp->IsCompatibleArchitecture(arch, true, platform_arch_ptr))
+    if (platform_sp->IsCompatibleArchitecture(arch, ArchSpec::ExactMatch, platform_arch_ptr))
       return platform_sp;
   }
 
   // Next try compatible arch matches across all platforms already created
   for (const auto &platform_sp : m_platforms) {
-    if (platform_sp->IsCompatibleArchitecture(arch, false, platform_arch_ptr))
+    if (platform_sp->IsCompatibleArchitecture(arch, ArchSpec::CompatibleMatch,
+                                              platform_arch_ptr))
       return platform_sp;
   }
 
@@ -1911,8 +1911,8 @@
        (create_callback = PluginManager::GetPlatformCreateCallbackAtIndex(idx));
        ++idx) {
     PlatformSP platform_sp = create_callback(false, &arch);
-    if (platform_sp &&
-        platform_sp->IsCompatibleArchitecture(arch, true, platform_arch_ptr)) {
+    if (platform_sp && platform_sp->IsCompatibleArchitecture(
+                           arch, ArchSpec::ExactMatch, platform_arch_ptr)) {
       m_platforms.push_back(platform_sp);
       return platform_sp;
     }
@@ -1923,7 +1923,8 @@
        ++idx) {
     PlatformSP platform_sp = create_callback(false, &arch);
     if (platform_sp &&
-        platform_sp->IsCompatibleArchitecture(arch, false, platform_arch_ptr)) {
+        platform_sp->IsCompatibleArchitecture(arch, ArchSpec::CompatibleMatch,
+                                              platform_arch_ptr)) {
       m_platforms.push_back(platform_sp);
       return platform_sp;
     }
Index: lldb/source/Interpreter/OptionGroupPlatform.cpp
===================================================================
--- lldb/source/Interpreter/OptionGroupPlatform.cpp
+++ lldb/source/Interpreter/OptionGroupPlatform.cpp
@@ -31,7 +31,8 @@
     }
     if (platform_sp) {
       if (platform_arch.IsValid() &&
-          !platform_sp->IsCompatibleArchitecture(arch, false, &platform_arch)) {
+          !platform_sp->IsCompatibleArchitecture(
+              arch, ArchSpec::CompatibleMatch, &platform_arch)) {
         error.SetErrorStringWithFormatv("platform '{0}' doesn't support '{1}'",
                                         platform_sp->GetPluginName(),
                                         arch.GetTriple().getTriple());
Index: lldb/include/lldb/Utility/ArchSpec.h
===================================================================
--- lldb/include/lldb/Utility/ArchSpec.h
+++ lldb/include/lldb/Utility/ArchSpec.h
@@ -477,19 +477,25 @@
   ///         architecture and false otherwise.
   bool CharIsSignedByDefault() const;
 
-  /// Compare an ArchSpec to another ArchSpec, requiring an exact cpu type
-  /// match between them. e.g. armv7s is not an exact match with armv7 - this
-  /// would return false
+  enum MatchType : bool { CompatibleMatch, ExactMatch };
+
+  /// Compare this ArchSpec to another ArchSpec. \a match specifies the kind of
+  /// matching that is to be done. CompatibleMatch requires only a compatible
+  /// cpu type (e.g., armv7s is compatible with armv7). ExactMatch requires an
+  /// exact match (armv7s is not an exact match with armv7).
   ///
   /// \return true if the two ArchSpecs match.
-  bool IsExactMatch(const ArchSpec &rhs) const;
+  bool IsMatch(const ArchSpec &rhs, MatchType match) const;
 
-  /// Compare an ArchSpec to another ArchSpec, requiring a compatible cpu type
-  /// match between them. e.g. armv7s is compatible with armv7 - this method
-  /// would return true
-  ///
-  /// \return true if the two ArchSpecs are compatible
-  bool IsCompatibleMatch(const ArchSpec &rhs) const;
+  /// Shorthand for IsMatch(rhs, ExactMatch).
+  bool IsExactMatch(const ArchSpec &rhs) const {
+    return IsMatch(rhs, ExactMatch);
+  }
+
+  /// Shorthand for IsMatch(rhs, CompatibleMatch).
+  bool IsCompatibleMatch(const ArchSpec &rhs) const {
+    return IsMatch(rhs, CompatibleMatch);
+  }
 
   bool IsFullySpecifiedTriple() const;
 
@@ -518,7 +524,6 @@
   void SetFlags(const std::string &elf_abi);
 
 protected:
-  bool IsEqualTo(const ArchSpec &rhs, bool exact_match) const;
   void UpdateCore();
 
   llvm::Triple m_triple;
Index: lldb/include/lldb/Target/Platform.h
===================================================================
--- lldb/include/lldb/Target/Platform.h
+++ lldb/include/lldb/Target/Platform.h
@@ -323,7 +323,7 @@
   /// Lets a platform answer if it is compatible with a given architecture and
   /// the target triple contained within.
   virtual bool IsCompatibleArchitecture(const ArchSpec &arch,
-                                        bool exact_arch_match,
+                                        ArchSpec::MatchType match,
                                         ArchSpec *compatible_arch_ptr);
 
   /// Not all platforms will support debugging a process by spawning somehow
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