Revert "[LLDB][ELF] Fixup for comments in D67390"

This reverts commit 813f05915d29904878d926f9849ca3dbe78096af.

llvm-svn: 371624

3 files changed, 8 insertions, 7 deletions

diff --git a/lldb/lit/Modules/ELF/load-from-dynsym-alone.test b/lldb/lit/Modules/ELF/load-from-dynsym-alone.test
index 8647c521e4a..74560abcc72 100644
--- a/lldb/lit/Modules/ELF/load-from-dynsym-alone.test
+++ b/lldb/lit/Modules/ELF/load-from-dynsym-alone.test
@@ -11,7 +11,7 @@
 #        2: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND __gmon_start__
 #        3: 0000000000401110    13 FUNC    GLOBAL DEFAULT   10 functionInDynsym
 
-# We want to keep the symbol "functionInDynsym" in the .dynsym section and not
+# We want to keep the symbol "functionInDynsym" in the .dynamic section and not
 # have it put the default .symtab section.
 # RUN: echo "{functionInDynsym;};" > %T/dynmic-symbols.txt
 # RUN: %clang -Wl,--dynamic-list=%T/dynmic-symbols.txt -g -o %t.binary %p/Inputs/load-from-dynsym-alone.c
diff --git a/lldb/lit/Modules/ELF/load-symtab-and-dynsym.test b/lldb/lit/Modules/ELF/load-symtab-and-dynsym.test
index 3700211763b..ff2ef86b24a 100644
--- a/lldb/lit/Modules/ELF/load-symtab-and-dynsym.test
+++ b/lldb/lit/Modules/ELF/load-symtab-and-dynsym.test
@@ -16,7 +16,7 @@
 #     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT  UND 
 #     1: 0000000000401110    15 FUNC    GLOBAL DEFAULT   10 functionInSymtab
 
-# We want to keep the symbol "functionInDynsym" in the .dynsym section and not
+# We want to keep the symbol "functionInDynsym" in the .dynamic section and not
 # have it put the default .symtab section.
 # RUN: echo "{functionInDynsym;};" > %T/dynmic-symbols.txt
 # RUN: %clang -Wl,--dynamic-list=%T/dynmic-symbols.txt -g -o %t.binary %p/Inputs/load-symtab-and-dynsym.c
diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
index e1f08ffaa18..20e26f033d1 100644
--- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -2644,11 +2644,12 @@ Symtab *ObjectFileELF::GetSymtab() {
 
     // Sharable objects and dynamic executables usually have 2 distinct symbol
     // tables, one named ".symtab", and the other ".dynsym". The dynsym is a
-    // smaller version of the symtab that only contains global symbols.
-    // Information in the dynsym section is *usually* also found in the symtab,
-    // but this is not required as symtab entries can be removed after linking.
-    // The minidebuginfo format makes use of this facility to create smaller
-    // symbol tables.
+    // smaller version of the symtab that only contains global symbols. The
+    // information found in the dynsym is therefore also found in the symtab,
+    // while the reverse is not necessarily true.
+    // One exception to the above rule is when we have minidebuginfo embedded
+    // into a compressed .gnu_debugdata section. This section contains a .symtab
+    // from which all symbols already contained in the .dynsym are stripped.
     Section *symtab =
         section_list->FindSectionByType(eSectionTypeELFSymbolTable, true).get();
     if (symtab) {