From cbed0e615b3658add66600d89e1d47c80a99a22d Mon Sep 17 00:00:00 2001
From: George Rimar <grimar@accesssoftek.com>
Date: Fri, 3 Nov 2017 08:13:16 +0000
Subject: [PATCH] [ELF] - Teach LLD to strip .zdebug_* sections when
 --strip-debug/--strip-all is specified.

Currently we do not strip .zdebug_*, what looks wrong.
Also this simplifies the testcase we have for this options.

Differential revision: https://reviews.llvm.org/D39552

llvm-svn: 317306
---
 lld/ELF/InputFiles.cpp     |  3 ++-
 lld/test/ELF/strip-debug.s | 27 ++++++++-------------------
 2 files changed, 10 insertions(+), 20 deletions(-)

diff --git a/lld/ELF/InputFiles.cpp b/lld/ELF/InputFiles.cpp
index 98329cdc0cde3..1210666e42c33 100644
--- a/lld/ELF/InputFiles.cpp
+++ b/lld/ELF/InputFiles.cpp
@@ -537,7 +537,8 @@ InputSectionBase *ObjFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {
     return &InputSection::Discarded;
   }
 
-  if (Config->Strip != StripPolicy::None && Name.startswith(".debug"))
+  if (Config->Strip != StripPolicy::None &&
+      (Name.startswith(".debug") || Name.startswith(".zdebug")))
     return &InputSection::Discarded;
 
   // The linkonce feature is a sort of proto-comdat. Some glibc i386 object
diff --git a/lld/test/ELF/strip-debug.s b/lld/test/ELF/strip-debug.s
index 81f7572aa7c58..8005cfacee6cd 100644
--- a/lld/test/ELF/strip-debug.s
+++ b/lld/test/ELF/strip-debug.s
@@ -1,25 +1,14 @@
 # REQUIRES: x86
-
-# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux -g %s -o %t
-# RUN: ld.lld %t -o %t2
-# RUN: llvm-readobj -sections -symbols %t2 | FileCheck -check-prefix=DEFAULT %s
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 # RUN: ld.lld %t -o %t2 --strip-debug
-# RUN: llvm-readobj -sections -symbols %t2 | FileCheck -check-prefix=STRIP %s
+# RUN: llvm-readobj -sections %t2 | FileCheck %s
 # RUN: ld.lld %t -o %t2 -S
-# RUN: llvm-readobj -sections -symbols %t2 | FileCheck -check-prefix=STRIP %s
+# RUN: llvm-readobj -sections %t2 | FileCheck %s
 # RUN: ld.lld %t -o %t2 --strip-all
-# RUN: llvm-readobj -sections -symbols %t2 | FileCheck -check-prefix=STRIP %s
-
-# DEFAULT: Name: .debug_info
-# DEFAULT: Name: .debug_abbrev
-# DEFAULT: Name: .debug_aranges
-# DEFAULT: Name: .debug_line
+# RUN: llvm-readobj -sections %t2 | FileCheck %s
 
-# STRIP-NOT: Name: .debug_info
-# STRIP-NOT: Name: .debug_abbrev
-# STRIP-NOT: Name: .debug_aranges
-# STRIP-NOT: Name: .debug_line
+# CHECK-NOT: Foo
+# CHECK-NOT: Bar
 
-.globl _start
-_start:
-  ret
+.section .debug_Foo,"",@progbits
+.section .zdebug_Bar,"",@progbits