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llvm-svn: 315163
diff --git a/lld/ELF/InputSection.h b/lld/ELF/InputSection.h
index 9268226..a9972c3 100644
--- a/lld/ELF/InputSection.h
+++ b/lld/ELF/InputSection.h
@@ -54,12 +54,23 @@
// The garbage collector sets sections' Live bits.
// If GC is disabled, all sections are considered live by default.
- unsigned Live : 1; // for garbage collection
- unsigned Assigned : 1; // for linker script
+ unsigned Live : 1;
- uint32_t Alignment;
+ // True if this section has already been placed to a linker script
+ // output section. This is needed because, in a linker script, you
+ // can refer to the same section more than once. For example, in
+ // the following linker script,
+ //
+ // .foo : { *(.text) }
+ // .bar : { *(.text) }
+ //
+ // .foo takes all .text sections, and .bar becomes empty. To achieve
+ // this, we need to memorize whether a section has been placed or
+ // not for each input section.
+ unsigned Assigned : 1;
// These corresponds to the fields in Elf_Shdr.
+ uint32_t Alignment;
uint64_t Flags;
uint64_t Entsize;
uint32_t Type;