================ @@ -0,0 +1,91 @@ +// REQUIRES: lld + +// This test will make a type that will be compiled differently into two +// different .dwo files in a type unit with the same type hash, but with +// differing contents. I have discovered that the hash for the type unit is +// simply based off of the typename and doesn't seem to differ when the contents +// differ, so that will help us test foreign type units in the .debug_names +// section of the main executable. When a DWP file is made, only one type unit +// will be kept and the type unit that is kept has the .dwo file name that it +// came from. When LLDB loads the foreign type units, it needs to verify that +// any entries from foreign type units come from the right .dwo file. We test +// this since the contents of type units are not always the same even though +// they have the same type hash. We don't want invalid accelerator table entries +// to come from one .dwo file and be used on a type unit from another since this +// could cause invalid lookups to happen. LLDB knows how to track down which +// .dwo file a type unit comes from by looking at the DW_AT_dwo_name attribute +// in the DW_TAG_type_unit. + +// Now test with DWARF5 +// RUN: %clang -target x86_64-pc-linux -gdwarf-5 -gsplit-dwarf \ +// RUN: -fdebug-types-section -gpubnames -c %s -o %t.main.o +// RUN: %clang -target x86_64-pc-linux -gdwarf-5 -gsplit-dwarf -DVARIANT \ +// RUN: -fdebug-types-section -gpubnames -c %s -o %t.foo.o +// RUN: ld.lld %t.main.o %t.foo.o -o %t + +// First we check when we make the .dwp file with %t.main.dwo first so it will +// pick the type unit from %t.main.dwo. Verify we find only the types from +// %t.main.dwo's type unit. +// RUN: llvm-dwp %t.main.dwo %t.foo.dwo -o %t.dwp +// RUN: %lldb \ +// RUN: -o "type lookup IntegerType" \ +// RUN: -o "type lookup FloatType" \ +// RUN: -o "type lookup IntegerType" \ ---------------- bulbazord wrote:
Why look up IntegerType twice? https://github.com/llvm/llvm-project/pull/87740 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
