commit 8e791463ef65362f9c0a47398756122d9427c126
author Peter Smith <peter.smith@linaro.org> Wed Jun 07 09:35:14 2017 +0000
committer Peter Smith <peter.smith@linaro.org> Wed Jun 07 09:35:14 2017 +0000
tree df6589e0d82f7c6b477a888c1af9c4e76194d73c
parent 990c9cb2bf882851ed9673b88a254f9f2c7ca9b7

[ELF] Convert Thunks to use InputSectionDescriptions

Thunks are now generated per InputSectionDescription instead of per
OutputSection. This allows created ThunkSections to be inserted directly
into InputSectionDescription.

Changes in this patch:
- Loop over InputSectionDescriptions to find relocations to Thunks
- Generate a ThunkSection per InputSectionDescription
- Remove synchronize() as we no longer need it
- Move fabricateDefaultCommands() before createThunks

Differential Revision: https://reviews.llvm.org/D33835

llvm-svn: 304887

lld/ELF/Writer.cpp

diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp
index cea876a..21b4dc8 100644
--- a/lld/ELF/Writer.cpp
+++ b/lld/ELF/Writer.cpp
@@ -1225,6 +1225,12 @@
     if (SS->getParent() && !SS->empty())
       SS->getParent()->assignOffsets();
 
+  if (!Script->Opt.HasSections)
+    Script->fabricateDefaultCommands();
+  for (BaseCommand *Base : Script->Opt.Commands)
+    if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))
+      OutputSectionCommands.push_back(Cmd);
+
   // Dynamic section must be the last one in this list and dynamic
   // symbol table section (DynSymTab) must be the first one.
   applySynthetic({InX::DynSymTab,    InX::Bss,           InX::BssRelRo,
@@ -1253,13 +1259,6 @@
                      [](SyntheticSection *SS) { SS->updateAllocSize(); });
   }
 
-  if (!Script->Opt.HasSections)
-    Script->fabricateDefaultCommands();
-  else
-    Script->synchronize();
-  for (BaseCommand *Base : Script->Opt.Commands)
-    if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))
-      OutputSectionCommands.push_back(Cmd);
   clearOutputSections();
 
   // Fill other section headers. The dynamic table is finalized