From: Simon Atanasyan <simon@atanasyan.com>
Date: Fri, 3 Jul 2015 14:19:06 +0000 (+0000)
Subject: [ELFYAML] Make the Size field for .bss section optional
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5f78433f812fb494afa8207fceac11ea125cba3e;p=oota-llvm.git

[ELFYAML] Make the Size field for .bss section optional

It's a common case to have a zero-size .bss section in an object file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241352 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Object/ELFYAML.cpp b/lib/Object/ELFYAML.cpp
index 56eb374af23..72c232c3287 100644
--- a/lib/Object/ELFYAML.cpp
+++ b/lib/Object/ELFYAML.cpp
@@ -629,7 +629,7 @@ static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
 
 static void sectionMapping(IO &IO, ELFYAML::NoBitsSection &Section) {
   commonSectionMapping(IO, Section);
-  IO.mapRequired("Size", Section.Size);
+  IO.mapOptional("Size", Section.Size, Hex64(0));
 }
 
 static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) {
diff --git a/test/Object/obj2yaml.test b/test/Object/obj2yaml.test
index a9d39c8cb56..8054b23eb56 100644
--- a/test/Object/obj2yaml.test
+++ b/test/Object/obj2yaml.test
@@ -324,7 +324,6 @@ ELF-MIPS64EL-NEXT:   - Name:            .bss
 ELF-MIPS64EL-NEXT:     Type:            SHT_NOBITS
 ELF-MIPS64EL-NEXT:     Flags:           [ SHF_WRITE, SHF_ALLOC ]
 ELF-MIPS64EL-NEXT:     AddressAlign:    0x0000000000000010
-ELF-MIPS64EL-NEXT:     Size:            0x0000000000000000
 ELF-MIPS64EL-NEXT:   - Name:            .MIPS.options
 ELF-MIPS64EL-NEXT:     Type:            SHT_MIPS_OPTIONS
 ELF-MIPS64EL-NEXT:     Flags:           [ SHF_ALLOC ]