[LLDB][MIPS] Getting correct flags for MIPS

Patch by Nitesh Jain Reviewers: clayborg, ovyalov, emaste. Subscribers: jaydeep, bhushan, dsanders, mohit.bhakkad, sagar, labath, tberghammer, lldb-commits. Differential Revision: http://reviews.llvm.org/D10685 llvm-svn: 241045
llvm · Jun 30, 2015 · e0d8c42 · e0d8c42
1 parent 28dbd3c
commit e0d8c42
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Showing 5 changed files with 16 additions and 6 deletions.
diff --git a/lldb/include/lldb/Target/Platform.h b/lldb/include/lldb/Target/Platform.h
@@ -752,7 +752,7 @@ class ModuleCache;
         Unlink(const FileSpec &file_spec);
 
         virtual uint64_t
-        ConvertMmapFlagsToPlatform(unsigned flags);
+        ConvertMmapFlagsToPlatform(const ArchSpec &arch, unsigned flags);
 
         virtual bool
         GetSupportsRSync ()

diff --git a/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp b/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp
@@ -896,12 +896,21 @@ PlatformLinux::AttachNativeProcess (lldb::pid_t pid,
 }
 
 uint64_t
-PlatformLinux::ConvertMmapFlagsToPlatform(unsigned flags)
+PlatformLinux::ConvertMmapFlagsToPlatform(const ArchSpec &arch, unsigned flags)
 {
     uint64_t flags_platform = 0;
+    uint64_t map_anon = MAP_ANON;
+
+    // To get correct flags for MIPS Architecture
+    if (arch.GetTriple ().getArch () == llvm::Triple::mips64
+       || arch.GetTriple ().getArch () == llvm::Triple::mips64el 
+       || arch.GetTriple ().getArch () == llvm::Triple::mips 
+       || arch.GetTriple ().getArch () == llvm::Triple::mipsel)
+           map_anon = 0x800;
+
     if (flags & eMmapFlagsPrivate)
         flags_platform |= MAP_PRIVATE;
     if (flags & eMmapFlagsAnon)
-        flags_platform |= MAP_ANON;
+        flags_platform |= map_anon;
     return flags_platform;
 }
diff --git a/lldb/source/Plugins/Platform/Linux/PlatformLinux.h b/lldb/source/Plugins/Platform/Linux/PlatformLinux.h
@@ -120,7 +120,7 @@ namespace platform_linux {
                              NativeProcessProtocolSP &process_sp) override;
 
         uint64_t
-        ConvertMmapFlagsToPlatform(unsigned flags) override;
+        ConvertMmapFlagsToPlatform(const ArchSpec &arch, unsigned flags) override;
 
     private:
         DISALLOW_COPY_AND_ASSIGN (PlatformLinux);

diff --git a/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp b/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
@@ -86,7 +86,8 @@ lldb_private::InferiorCallMmap (Process *process,
                 prot_arg |= PROT_WRITE;
             }
 
-            flags_arg = process->GetTarget().GetPlatform()->ConvertMmapFlagsToPlatform(flags);
+            const ArchSpec arch =  process->GetTarget().GetArchitecture();
+            flags_arg = process->GetTarget().GetPlatform()->ConvertMmapFlagsToPlatform(arch,flags);
 
             AddressRange mmap_range;
             if (sc.GetAddressRange(range_scope, 0, use_inline_block_range, mmap_range))

diff --git a/lldb/source/Target/Platform.cpp b/lldb/source/Target/Platform.cpp
@@ -1500,7 +1500,7 @@ Platform::Unlink(const FileSpec &path)
 }
 
 uint64_t
-Platform::ConvertMmapFlagsToPlatform(unsigned flags)
+Platform::ConvertMmapFlagsToPlatform(const ArchSpec &arch, unsigned flags)
 {
     uint64_t flags_platform = 0;
     if (flags & eMmapFlagsPrivate)