diff options
Diffstat (limited to 'gold/layout.cc')
| -rw-r--r-- | gold/layout.cc | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/gold/layout.cc b/gold/layout.cc index a4003d5..2c8c524 100644 --- a/gold/layout.cc +++ b/gold/layout.cc @@ -43,6 +43,7 @@ #include "dynobj.h" #include "ehframe.h" #include "compressed_output.h" +#include "reduced_debug_output.h" #include "reloc.h" #include "layout.h" @@ -110,6 +111,8 @@ Layout::Layout(const General_options& options, Script_options* script_options) added_eh_frame_data_(false), eh_frame_hdr_section_(NULL), build_id_note_(NULL), + debug_abbrev_(NULL), + debug_info_(NULL), group_signatures_(), output_file_size_(-1), input_requires_executable_stack_(false), @@ -160,6 +163,19 @@ static const char* gdb_sections[] = ".debug_str", }; +static const char* lines_only_debug_sections[] = +{ ".debug_abbrev", + // ".debug_aranges", // not used by gdb as of 6.7.1 + // ".debug_frame", + ".debug_info", + ".debug_line", + // ".debug_loc", + // ".debug_macinfo", + // ".debug_pubnames", // not used by gdb as of 6.7.1 + // ".debug_ranges", + ".debug_str", +}; + static inline bool is_gdb_debug_section(const char* str) { @@ -170,6 +186,18 @@ is_gdb_debug_section(const char* str) return false; } +static inline bool +is_lines_only_debug_section(const char* str) +{ + // We can do this faster: binary search or a hashtable. But why bother? + for (size_t i = 0; + i < sizeof(lines_only_debug_sections)/sizeof(*lines_only_debug_sections); + ++i) + if (strcmp(str, lines_only_debug_sections[i]) == 0) + return true; + return false; +} + // Whether to include this section in the link. template<int size, bool big_endian> @@ -204,6 +232,14 @@ Layout::include_section(Sized_relobj<size, big_endian>*, const char* name, if (is_debug_info_section(name)) return false; } + if (parameters->options().strip_debug_non_line() + && (shdr.get_sh_flags() & elfcpp::SHF_ALLOC) == 0) + { + // Debugging sections can only be recognized by name. + if (is_prefix_of(".debug", name) + && !is_lines_only_debug_section(name)) + return false; + } if (parameters->options().strip_debug_gdb() && (shdr.get_sh_flags() & elfcpp::SHF_ALLOC) == 0) { @@ -702,7 +738,26 @@ Layout::make_output_section(const char* name, elfcpp::Elf_Word type, && strcmp(this->options_.compress_debug_sections(), "none") != 0 && is_compressible_debug_section(name)) os = new Output_compressed_section(&this->options_, name, type, flags); - else + + else if ((flags & elfcpp::SHF_ALLOC) == 0 + && this->options_.strip_debug_non_line() + && strcmp(".debug_abbrev", name) == 0) + { + os = this->debug_abbrev_ = new Output_reduced_debug_abbrev_section( + name, type, flags); + if (this->debug_info_) + this->debug_info_->set_abbreviations(this->debug_abbrev_); + } + else if ((flags & elfcpp::SHF_ALLOC) == 0 + && this->options_.strip_debug_non_line() + && strcmp(".debug_info", name) == 0) + { + os = this->debug_info_ = new Output_reduced_debug_info_section( + name, type, flags); + if (this->debug_abbrev_) + this->debug_info_->set_abbreviations(this->debug_abbrev_); + } + else os = new Output_section(name, type, flags); this->section_list_.push_back(os); |