[PATCH] D25641: [Driver] Use VFS to perform all distribution checks

[Michał Górny via cfe-commits]

mgorny created this revision.
mgorny added reviewers: bruno, rafael, bkramer.
mgorny added subscribers: cfe-commits, bruno.

Use the VFS provided by D.getVFS() for all distribution checks,
including those performing read of the release file. Requested
by @bruno on https://reviews.llvm.org/D24954.


https://reviews.llvm.org/D25641

Files:
  lib/Driver/ToolChains.cpp


Index: lib/Driver/ToolChains.cpp
===================================================================
--- lib/Driver/ToolChains.cpp
+++ lib/Driver/ToolChains.cpp
@@ -3844,7 +3844,7 @@
 
 static Distro DetectDistro(const Driver &D, llvm::Triple::ArchType Arch) {
   llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
-      llvm::MemoryBuffer::getFile("/etc/lsb-release");
+      D.getVFS().getBufferForFile("/etc/lsb-release");
   if (File) {
     StringRef Data = File.get()->getBuffer();
     SmallVector<StringRef, 16> Lines;
@@ -3876,7 +3876,7 @@
       return Version;
   }
 
-  File = llvm::MemoryBuffer::getFile("/etc/redhat-release");
+  File = D.getVFS().getBufferForFile("/etc/redhat-release");
   if (File) {
     StringRef Data = File.get()->getBuffer();
     if (Data.startswith("Fedora release"))
@@ -3894,7 +3894,7 @@
     return UnknownDistro;
   }
 
-  File = llvm::MemoryBuffer::getFile("/etc/debian_version");
+  File = D.getVFS().getBufferForFile("/etc/debian_version");
   if (File) {
     StringRef Data = File.get()->getBuffer();
     if (Data[0] == '5')


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