diff options
Diffstat (limited to 'binutils/objcopy.c')
| -rw-r--r-- | binutils/objcopy.c | 51 |
1 files changed, 47 insertions, 4 deletions
diff --git a/binutils/objcopy.c b/binutils/objcopy.c index bd93d000057..40250adc4bb 100644 --- a/binutils/objcopy.c +++ b/binutils/objcopy.c @@ -96,6 +96,8 @@ enum strip_action STRIP_DEBUG, /* Strip all debugger symbols. */ STRIP_UNNEEDED, /* Strip unnecessary symbols. */ STRIP_NONDEBUG, /* Strip everything but debug info. */ + STRIP_DWO, /* Strip all DWO info. */ + STRIP_NONDWO, /* Strip everything but DWO info. */ STRIP_ALL /* Strip all symbols. */ }; @@ -314,7 +316,9 @@ enum command_line_switch OPTION_SECTION_ALIGNMENT, OPTION_STACK, OPTION_INTERLEAVE_WIDTH, - OPTION_SUBSYSTEM + OPTION_SUBSYSTEM, + OPTION_EXTRACT_DWO, + OPTION_STRIP_DWO }; /* Options to handle if running as "strip". */ @@ -339,6 +343,7 @@ static struct option strip_options[] = {"remove-section", required_argument, 0, 'R'}, {"strip-all", no_argument, 0, 's'}, {"strip-debug", no_argument, 0, 'S'}, + {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO}, {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, {"strip-symbol", required_argument, 0, 'N'}, {"target", required_argument, 0, 'F'}, @@ -374,6 +379,7 @@ static struct option copy_options[] = {"discard-all", no_argument, 0, 'x'}, {"discard-locals", no_argument, 0, 'X'}, {"enable-deterministic-archives", no_argument, 0, 'D'}, + {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO}, {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL}, {"format", required_argument, 0, 'F'}, /* Obsolete */ {"gap-fill", required_argument, 0, OPTION_GAP_FILL}, @@ -420,6 +426,7 @@ static struct option copy_options[] = {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3}, {"strip-all", no_argument, 0, 'S'}, {"strip-debug", no_argument, 0, 'g'}, + {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO}, {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL}, {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS}, @@ -490,12 +497,14 @@ copy_usage (FILE *stream, int exit_status) -R --remove-section <name> Remove section <name> from the output\n\ -S --strip-all Remove all symbol and relocation information\n\ -g --strip-debug Remove all debugging symbols & sections\n\ + --strip-dwo Remove all DWO sections\n\ --strip-unneeded Remove all symbols not needed by relocations\n\ -N --strip-symbol <name> Do not copy symbol <name>\n\ --strip-unneeded-symbol <name>\n\ Do not copy symbol <name> unless needed by\n\ relocations\n\ --only-keep-debug Strip everything but the debug information\n\ + --extract-dwo Copy only DWO sections\n\ --extract-symbol Remove section contents but keep symbols\n\ -K --keep-symbol <name> Do not strip symbol <name>\n\ --keep-file-symbols Do not strip file symbol(s)\n\ @@ -598,6 +607,7 @@ strip_usage (FILE *stream, int exit_status) -R --remove-section=<name> Remove section <name> from the output\n\ -s --strip-all Remove all symbol and relocation information\n\ -g -S -d --strip-debug Remove all debugging symbols & sections\n\ + --strip-dwo Remove all DWO sections\n\ --strip-unneeded Remove all symbols not needed by relocations\n\ --only-keep-debug Strip everything but the debug information\n\ -N --strip-symbol=<name> Do not copy symbol <name>\n\ @@ -932,6 +942,17 @@ group_signature (asection *group) return NULL; } +/* Return TRUE if the section is a DWO section. */ + +static bfd_boolean +is_dwo_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) +{ + const char *name = bfd_get_section_name (abfd, sec); + int len = strlen (name); + + return strncmp (name + len - 4, ".dwo", 4) == 0; +} + /* See if a non-group section is being removed. */ static bfd_boolean @@ -958,10 +979,16 @@ is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) || convert_debugging) return TRUE; + if (strip_symbols == STRIP_DWO) + return is_dwo_section (abfd, sec); + if (strip_symbols == STRIP_NONDEBUG) return FALSE; } + if (strip_symbols == STRIP_NONDWO) + return !is_dwo_section (abfd, sec); + return FALSE; } @@ -1849,6 +1876,8 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) || strip_symbols == STRIP_ALL || strip_symbols == STRIP_UNNEEDED || strip_symbols == STRIP_NONDEBUG + || strip_symbols == STRIP_DWO + || strip_symbols == STRIP_NONDWO || discard_locals != LOCALS_UNDEF || localize_hidden || htab_elements (strip_specific_htab) != 0 @@ -2656,8 +2685,8 @@ copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg) osection = isection->output_section; - /* Core files do not need to be relocated. */ - if (bfd_get_format (obfd) == bfd_core) + /* Core files and DWO files do not need to be relocated. */ + if (bfd_get_format (obfd) == bfd_core || strip_symbols == STRIP_NONDWO) relsize = 0; else { @@ -2678,7 +2707,10 @@ copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg) } if (relsize == 0) - bfd_set_reloc (obfd, osection, NULL, 0); + { + bfd_set_reloc (obfd, osection, NULL, 0); + osection->flags &= ~SEC_RELOC; + } else { relpp = (arelent **) xmalloc (relsize); @@ -3022,6 +3054,9 @@ strip_main (int argc, char *argv[]) case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */ strip_symbols = STRIP_DEBUG; break; + case OPTION_STRIP_DWO: + strip_symbols = STRIP_DWO; + break; case OPTION_STRIP_UNNEEDED: strip_symbols = STRIP_UNNEEDED; break; @@ -3352,6 +3387,10 @@ copy_main (int argc, char *argv[]) strip_symbols = STRIP_DEBUG; break; + case OPTION_STRIP_DWO: + strip_symbols = STRIP_DWO; + break; + case OPTION_STRIP_UNNEEDED: strip_symbols = STRIP_UNNEEDED; break; @@ -3813,6 +3852,10 @@ copy_main (int argc, char *argv[]) bfd_flags_to_set &= ~D_PAGED; break; + case OPTION_EXTRACT_DWO: + strip_symbols = STRIP_NONDWO; + break; + case OPTION_EXTRACT_SYMBOL: extract_symbol = TRUE; break; |