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Diffstat (limited to 'compiler')
-rw-r--r--compiler/elf_builder.h20
-rw-r--r--compiler/elf_writer_quick.cc103
2 files changed, 66 insertions, 57 deletions
diff --git a/compiler/elf_builder.h b/compiler/elf_builder.h
index 730d780f6b..5b74c94767 100644
--- a/compiler/elf_builder.h
+++ b/compiler/elf_builder.h
@@ -57,12 +57,12 @@ class ElfBuilder FINAL {
public:
Section(const std::string& name, Elf_Word type, Elf_Word flags,
const Section* link, Elf_Word info, Elf_Word align, Elf_Word entsize)
- : header_(new Elf_Shdr()), section_index_(0), name_(name), link_(link) {
- header_->sh_type = type;
- header_->sh_flags = flags;
- header_->sh_info = info;
- header_->sh_addralign = align;
- header_->sh_entsize = entsize;
+ : header_(), section_index_(0), name_(name), link_(link) {
+ header_.sh_type = type;
+ header_.sh_flags = flags;
+ header_.sh_info = info;
+ header_.sh_addralign = align;
+ header_.sh_entsize = entsize;
}
virtual ~Section() {}
@@ -80,11 +80,11 @@ class ElfBuilder FINAL {
}
const Elf_Shdr* GetHeader() const {
- return header_.get();
+ return &header_;
}
Elf_Shdr* GetHeader() {
- return header_.get();
+ return &header_;
}
Elf_Word GetSectionIndex() const {
@@ -101,9 +101,7 @@ class ElfBuilder FINAL {
}
private:
- // Elf_Shdr is somewhat large so allocate it on the heap.
- // Otherwise we get in trouble with stack frame sizes.
- std::unique_ptr<Elf_Shdr> header_;
+ Elf_Shdr header_;
Elf_Word section_index_;
const std::string name_;
const Section* const link_;
diff --git a/compiler/elf_writer_quick.cc b/compiler/elf_writer_quick.cc
index 4a90b4ea73..3f0a80bc99 100644
--- a/compiler/elf_writer_quick.cc
+++ b/compiler/elf_writer_quick.cc
@@ -156,52 +156,62 @@ bool ElfWriterQuick<ElfTypes>::Write(
isa, rodata_size, &rodata_writer, text_size, &text_writer, bss_size));
// Add debug sections.
- // They are stack allocated here (in the same scope as the builder),
+ // They are allocated here (in the same scope as the builder),
// but they are registered with the builder only if they are used.
using RawSection = typename ElfBuilder<ElfTypes>::RawSection;
const auto* text = builder->GetText();
const bool is64bit = Is64BitInstructionSet(isa);
const int pointer_size = GetInstructionSetPointerSize(isa);
- RawSection eh_frame(".eh_frame", SHT_PROGBITS, SHF_ALLOC, nullptr, 0, kPageSize, 0,
- is64bit ? Patch<Elf_Addr, uint64_t, kPointerRelativeAddress> :
- Patch<Elf_Addr, uint32_t, kPointerRelativeAddress>,
- text);
- RawSection eh_frame_hdr(".eh_frame_hdr", SHT_PROGBITS, SHF_ALLOC, nullptr, 0, 4, 0,
- Patch<Elf_Addr, uint32_t, kSectionRelativeAddress>, text);
- RawSection debug_frame(".debug_frame", SHT_PROGBITS, 0, nullptr, 0, pointer_size, 0,
- is64bit ? Patch<Elf_Addr, uint64_t, kAbsoluteAddress> :
- Patch<Elf_Addr, uint32_t, kAbsoluteAddress>,
- text);
- RawSection debug_frame_oat_patches(".debug_frame.oat_patches", SHT_OAT_PATCH);
- RawSection debug_info(".debug_info", SHT_PROGBITS, 0, nullptr, 0, 1, 0,
- Patch<Elf_Addr, uint32_t, kAbsoluteAddress>, text);
- RawSection debug_info_oat_patches(".debug_info.oat_patches", SHT_OAT_PATCH);
- RawSection debug_abbrev(".debug_abbrev", SHT_PROGBITS);
- RawSection debug_str(".debug_str", SHT_PROGBITS);
- RawSection debug_line(".debug_line", SHT_PROGBITS, 0, nullptr, 0, 1, 0,
- Patch<Elf_Addr, uint32_t, kAbsoluteAddress>, text);
- RawSection debug_line_oat_patches(".debug_line.oat_patches", SHT_OAT_PATCH);
+ std::unique_ptr<RawSection> eh_frame(new RawSection(
+ ".eh_frame", SHT_PROGBITS, SHF_ALLOC, nullptr, 0, kPageSize, 0,
+ is64bit ? Patch<Elf_Addr, uint64_t, kPointerRelativeAddress> :
+ Patch<Elf_Addr, uint32_t, kPointerRelativeAddress>,
+ text));
+ std::unique_ptr<RawSection> eh_frame_hdr(new RawSection(
+ ".eh_frame_hdr", SHT_PROGBITS, SHF_ALLOC, nullptr, 0, 4, 0,
+ Patch<Elf_Addr, uint32_t, kSectionRelativeAddress>, text));
+ std::unique_ptr<RawSection> debug_frame(new RawSection(
+ ".debug_frame", SHT_PROGBITS, 0, nullptr, 0, pointer_size, 0,
+ is64bit ? Patch<Elf_Addr, uint64_t, kAbsoluteAddress> :
+ Patch<Elf_Addr, uint32_t, kAbsoluteAddress>,
+ text));
+ std::unique_ptr<RawSection> debug_frame_oat_patches(new RawSection(
+ ".debug_frame.oat_patches", SHT_OAT_PATCH));
+ std::unique_ptr<RawSection> debug_info(new RawSection(
+ ".debug_info", SHT_PROGBITS, 0, nullptr, 0, 1, 0,
+ Patch<Elf_Addr, uint32_t, kAbsoluteAddress>, text));
+ std::unique_ptr<RawSection> debug_info_oat_patches(new RawSection(
+ ".debug_info.oat_patches", SHT_OAT_PATCH));
+ std::unique_ptr<RawSection> debug_abbrev(new RawSection(
+ ".debug_abbrev", SHT_PROGBITS));
+ std::unique_ptr<RawSection> debug_str(new RawSection(
+ ".debug_str", SHT_PROGBITS));
+ std::unique_ptr<RawSection> debug_line(new RawSection(
+ ".debug_line", SHT_PROGBITS, 0, nullptr, 0, 1, 0,
+ Patch<Elf_Addr, uint32_t, kAbsoluteAddress>, text));
+ std::unique_ptr<RawSection> debug_line_oat_patches(new RawSection(
+ ".debug_line.oat_patches", SHT_OAT_PATCH));
if (!oat_writer->GetMethodDebugInfo().empty()) {
if (compiler_driver_->GetCompilerOptions().GetIncludeCFI()) {
if (kCFIFormat == dwarf::DW_EH_FRAME_FORMAT) {
dwarf::WriteCFISection(
compiler_driver_, oat_writer,
dwarf::DW_EH_PE_pcrel, kCFIFormat,
- eh_frame.GetBuffer(), eh_frame.GetPatchLocations(),
- eh_frame_hdr.GetBuffer(), eh_frame_hdr.GetPatchLocations());
- builder->RegisterSection(&eh_frame);
- builder->RegisterSection(&eh_frame_hdr);
+ eh_frame->GetBuffer(), eh_frame->GetPatchLocations(),
+ eh_frame_hdr->GetBuffer(), eh_frame_hdr->GetPatchLocations());
+ builder->RegisterSection(eh_frame.get());
+ builder->RegisterSection(eh_frame_hdr.get());
} else {
DCHECK(kCFIFormat == dwarf::DW_DEBUG_FRAME_FORMAT);
dwarf::WriteCFISection(
compiler_driver_, oat_writer,
dwarf::DW_EH_PE_absptr, kCFIFormat,
- debug_frame.GetBuffer(), debug_frame.GetPatchLocations(),
+ debug_frame->GetBuffer(), debug_frame->GetPatchLocations(),
nullptr, nullptr);
- builder->RegisterSection(&debug_frame);
- EncodeOatPatches(*debug_frame.GetPatchLocations(),
- debug_frame_oat_patches.GetBuffer());
- builder->RegisterSection(&debug_frame_oat_patches);
+ builder->RegisterSection(debug_frame.get());
+ EncodeOatPatches(*debug_frame->GetPatchLocations(),
+ debug_frame_oat_patches->GetBuffer());
+ builder->RegisterSection(debug_frame_oat_patches.get());
}
}
if (compiler_driver_->GetCompilerOptions().GetIncludeDebugSymbols()) {
@@ -210,31 +220,32 @@ bool ElfWriterQuick<ElfTypes>::Write(
// Generate DWARF .debug_* sections.
dwarf::WriteDebugSections(
compiler_driver_, oat_writer,
- debug_info.GetBuffer(), debug_info.GetPatchLocations(),
- debug_abbrev.GetBuffer(),
- debug_str.GetBuffer(),
- debug_line.GetBuffer(), debug_line.GetPatchLocations());
- builder->RegisterSection(&debug_info);
- EncodeOatPatches(*debug_info.GetPatchLocations(),
- debug_info_oat_patches.GetBuffer());
- builder->RegisterSection(&debug_info_oat_patches);
- builder->RegisterSection(&debug_abbrev);
- builder->RegisterSection(&debug_str);
- builder->RegisterSection(&debug_line);
- EncodeOatPatches(*debug_line.GetPatchLocations(),
- debug_line_oat_patches.GetBuffer());
- builder->RegisterSection(&debug_line_oat_patches);
+ debug_info->GetBuffer(), debug_info->GetPatchLocations(),
+ debug_abbrev->GetBuffer(),
+ debug_str->GetBuffer(),
+ debug_line->GetBuffer(), debug_line->GetPatchLocations());
+ builder->RegisterSection(debug_info.get());
+ EncodeOatPatches(*debug_info->GetPatchLocations(),
+ debug_info_oat_patches->GetBuffer());
+ builder->RegisterSection(debug_info_oat_patches.get());
+ builder->RegisterSection(debug_abbrev.get());
+ builder->RegisterSection(debug_str.get());
+ builder->RegisterSection(debug_line.get());
+ EncodeOatPatches(*debug_line->GetPatchLocations(),
+ debug_line_oat_patches->GetBuffer());
+ builder->RegisterSection(debug_line_oat_patches.get());
}
}
// Add relocation section for .text.
- RawSection text_oat_patches(".text.oat_patches", SHT_OAT_PATCH);
+ std::unique_ptr<RawSection> text_oat_patches(new RawSection(
+ ".text.oat_patches", SHT_OAT_PATCH));
if (compiler_driver_->GetCompilerOptions().GetIncludePatchInformation()) {
// Note that ElfWriter::Fixup will be called regardless and therefore
// we need to include oat_patches for debug sections unconditionally.
EncodeOatPatches(oat_writer->GetAbsolutePatchLocations(),
- text_oat_patches.GetBuffer());
- builder->RegisterSection(&text_oat_patches);
+ text_oat_patches->GetBuffer());
+ builder->RegisterSection(text_oat_patches.get());
}
return builder->Write(elf_file_);
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2026-01-07 13:39:45 +0000