[PATCH] D61186: [LLD][ELF] /DISCARD/ output sections should not be orphans

[Phabricator via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL359565: [LLD][ELF] /DISCARD/ output sections should not be orphans (authored by anng, committed by ).
Herald added a project: LLVM.

Changed prior to commit:
  https://reviews.llvm.org/D61186?vs=197095&id=197323#toc

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61186/new/

https://reviews.llvm.org/D61186

Files:
  lld/trunk/ELF/LinkerScript.cpp
  lld/trunk/test/ELF/linkerscript/discard-phdr.s


Index: lld/trunk/ELF/LinkerScript.cpp
===================================================================
--- lld/trunk/ELF/LinkerScript.cpp
+++ lld/trunk/ELF/LinkerScript.cpp
@@ -482,6 +482,7 @@
       if (Sec->Name == "/DISCARD/") {
         discard(V);
         Sec->SectionCommands.clear();
+        Sec->SectionIndex = 0; // Not an orphan.
         continue;
       }
 
Index: lld/trunk/test/ELF/linkerscript/discard-phdr.s
===================================================================
--- lld/trunk/test/ELF/linkerscript/discard-phdr.s
+++ lld/trunk/test/ELF/linkerscript/discard-phdr.s
@@ -0,0 +1,36 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
+# RUN: echo "PHDRS { \
+# RUN:   exec PT_LOAD FLAGS(0x4 | 0x1); \
+# RUN: } \
+# RUN: SECTIONS { \
+# RUN:  .text : { *(.text) } :exec \
+# RUN:  .foo : { *(.foo) } \
+# RUN:  .bar : { *(.bar) } \
+# RUN:  /DISCARD/ : { *(.discard) } :NONE \
+# RUN: }" > %t.script
+# RUN: ld.lld -o %t --script %t.script %t.o
+# RUN: llvm-readelf -S -l %t | FileCheck %s
+
+## Check that /DISCARD/ does not interfere with the assignment of segments to
+## sections.
+
+# CHECK: Section Headers
+# CHECK: .text
+# CHECK-NEXT: .foo
+# CHECK-NEXT: .bar
+
+# CHECK: Segment Sections
+# CHECK-NEXT: .text .foo .bar
+
+.section .text,"ax"
+ ret
+
+.section .foo,"a"
+ .byte 0
+
+.section .bar,"ax"
+ ret
+
+.section .discard
+ .byte 0


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