[PATCH] D34344: [LLD][ELF] Extract allocateHeaders() from assignAddresses()
Peter Smith via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jul 5 02:13:24 PDT 2017
This revision was automatically updated to reflect the committed changes.
Closed by commit rL307131: [ELF] Extract allocateHeaders() from assignAddresses() (authored by psmith).
Changed prior to commit:
https://reviews.llvm.org/D34344?vs=105146&id=105231#toc
Repository:
rL LLVM
https://reviews.llvm.org/D34344
Files:
lld/trunk/ELF/LinkerScript.cpp
lld/trunk/ELF/LinkerScript.h
lld/trunk/ELF/Writer.cpp
Index: lld/trunk/ELF/Writer.cpp
===================================================================
--- lld/trunk/ELF/Writer.cpp
+++ lld/trunk/ELF/Writer.cpp
@@ -217,7 +217,8 @@
OutputSectionCommands.begin(), OutputSectionCommands.end(),
[](OutputSectionCommand *Cmd) { Cmd->maybeCompress<ELFT>(); });
- Script->assignAddresses(Phdrs);
+ Script->assignAddresses();
+ Script->allocateHeaders(Phdrs);
// Remove empty PT_LOAD to avoid causing the dynamic linker to try to mmap a
// 0 sized region. This has to be done late since only after assignAddresses
Index: lld/trunk/ELF/LinkerScript.cpp
===================================================================
--- lld/trunk/ELF/LinkerScript.cpp
+++ lld/trunk/ELF/LinkerScript.cpp
@@ -783,10 +783,14 @@
}
}
-static void
-allocateHeaders(std::vector<PhdrEntry> &Phdrs,
- ArrayRef<OutputSectionCommand *> OutputSectionCommands,
- uint64_t Min) {
+void LinkerScript::allocateHeaders(std::vector<PhdrEntry> &Phdrs) {
+ uint64_t Min = std::numeric_limits<uint64_t>::max();
+ for (OutputSectionCommand *Cmd : OutputSectionCommands) {
+ OutputSection *Sec = Cmd->Sec;
+ if (Sec->Flags & SHF_ALLOC)
+ Min = std::min<uint64_t>(Min, Sec->Addr);
+ }
+
auto FirstPTLoad = llvm::find_if(
Phdrs, [](const PhdrEntry &E) { return E.p_type == PT_LOAD; });
if (FirstPTLoad == Phdrs.end())
@@ -826,7 +830,7 @@
Phdrs.erase(PhdrI);
}
-void LinkerScript::assignAddresses(std::vector<PhdrEntry> &Phdrs) {
+void LinkerScript::assignAddresses() {
// Assign addresses as instructed by linker script SECTIONS sub-commands.
Dot = 0;
ErrorOnMissingSection = true;
@@ -846,15 +850,6 @@
auto *Cmd = cast<OutputSectionCommand>(Base);
assignOffsets(Cmd);
}
-
- uint64_t MinVA = std::numeric_limits<uint64_t>::max();
- for (OutputSectionCommand *Cmd : OutputSectionCommands) {
- OutputSection *Sec = Cmd->Sec;
- if (Sec->Flags & SHF_ALLOC)
- MinVA = std::min<uint64_t>(MinVA, Sec->Addr);
- }
-
- allocateHeaders(Phdrs, OutputSectionCommands, MinVA);
}
// Creates program headers as instructed by PHDRS linker script command.
Index: lld/trunk/ELF/LinkerScript.h
===================================================================
--- lld/trunk/ELF/LinkerScript.h
+++ lld/trunk/ELF/LinkerScript.h
@@ -281,8 +281,8 @@
void assignOffsets(OutputSectionCommand *Cmd);
void createOrphanCommands();
void processNonSectionCommands();
- void assignAddresses(std::vector<PhdrEntry> &Phdrs);
-
+ void assignAddresses();
+ void allocateHeaders(std::vector<PhdrEntry> &Phdrs);
void addSymbol(SymbolAssignment *Cmd);
void processCommands(OutputSectionFactory &Factory);
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