[llvm] e151acc - [DWARFYAML] Add support for emitting multiple abbrev tables.

[Xing GUO via llvm-commits]

Author: Xing GUO
Date: 2020-08-21T11:44:25+08:00
New Revision: e151acc073ab8b311dbaee11a6bc4cf16cef0575

URL: https://github.com/llvm/llvm-project/commit/e151acc073ab8b311dbaee11a6bc4cf16cef0575
DIFF: https://github.com/llvm/llvm-project/commit/e151acc073ab8b311dbaee11a6bc4cf16cef0575.diff

LOG: [DWARFYAML] Add support for emitting multiple abbrev tables.

This patch adds support for emitting multiple abbrev tables. Currently,
compilation units will always reference the first abbrev table.

Reviewed By: jhenderson, labath

Differential Revision: https://reviews.llvm.org/D86194

Added: 
    

Modified: 
    llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml

Removed: 
    


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diff  --git a/llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml b/llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml
index d3698f18ed66..ac661dfc1903 100644
--- a/llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml
+++ b/llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml
@@ -902,3 +902,24 @@ DWARF:
         - AbbrCode: 1
           Values:
             - Value: 0x1234
+
+## n) Test that yaml2obj emits an error message when a compilation unit has values but there is no associated abbrev table.
+
+## RUN: not yaml2obj --docnum=16 %s 2>&1 | FileCheck %s --check-prefix=NO-ABBREV
+
+# NO-ABBREV: yaml2obj: error: non-empty compilation unit should have an associated abbrev table
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  Type:    ET_EXEC
+  Machine: EM_X86_64
+DWARF:
+  debug_info:
+    - Version:    4
+      AbbrOffset: 0x00
+      Entries:
+        - AbbrCode: 1
+          Values:
+            - Value: 0x1234