diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/linker/elf_builder.h | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/compiler/linker/elf_builder.h b/compiler/linker/elf_builder.h index 3145497091..1c875189c5 100644 --- a/compiler/linker/elf_builder.h +++ b/compiler/linker/elf_builder.h @@ -18,6 +18,7 @@ #define ART_COMPILER_LINKER_ELF_BUILDER_H_ #include <vector> +#include <unordered_map> #include "arch/instruction_set.h" #include "arch/mips/instruction_set_features_mips.h" @@ -309,27 +310,24 @@ class ElfBuilder FINAL { /* info */ 0, align, /* entsize */ 0), - current_offset_(0), - last_offset_(0) { + current_offset_(0) { } Elf_Word Write(const std::string& name) { if (current_offset_ == 0) { DCHECK(name.empty()); - } else if (name == last_name_) { - return last_offset_; // Very simple string de-duplication. } - last_name_ = name; - last_offset_ = current_offset_; - this->WriteFully(name.c_str(), name.length() + 1); - current_offset_ += name.length() + 1; - return last_offset_; + auto res = written_names_.emplace(name, current_offset_); + if (res.second) { // Inserted. + this->WriteFully(name.c_str(), name.length() + 1); + current_offset_ += name.length() + 1; + } + return res.first->second; // Offset. } private: Elf_Word current_offset_; - std::string last_name_; - Elf_Word last_offset_; + std::unordered_map<std::string, Elf_Word> written_names_; // Dedup strings. }; // Writer of .dynsym and .symtab sections. |