diff options
| -rw-r--r-- | lld/ELF/InputSection.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/lld/ELF/InputSection.h b/lld/ELF/InputSection.h index 9268226866b..a9972c332c6 100644 --- a/lld/ELF/InputSection.h +++ b/lld/ELF/InputSection.h @@ -54,12 +54,23 @@ public: // 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 - - uint32_t Alignment; + unsigned Live : 1; + + // 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; |
