diff options
| -rw-r--r-- | ld/ChangeLog | 12 | ||||
| -rw-r--r-- | ld/NEWS | 5 | ||||
| -rw-r--r-- | ld/ld.h | 5 | ||||
| -rw-r--r-- | ld/ld.texi | 9 | ||||
| -rw-r--r-- | ld/ldlex.h | 1 | ||||
| -rw-r--r-- | ld/ldmisc.c | 3 | ||||
| -rw-r--r-- | ld/lexsup.c | 8 |
7 files changed, 42 insertions, 1 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog index 15cf800..9ba8cbc 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,15 @@ +2022-10-21 Nick Clifton <nickc@redhat.com> + + PR 29654 + * ld.h (struct ld_config_type): Add no_warnings field. + * ldlex.h (enum option_values): Add OPTION_NO_WARNINGS. + * lexsup.c (ld_options): Add --no-warnings. + (parse_args): Add support for -w and --no-warnings. + * ldmisc.c (vfinfo): Return early if the message is a warning and + -w has been enabled. + * ld.texi (options): Document new command line option. + * NEWS: Mention the new feature. + 2022-08-30 Nick Clifton <nickc@redhat.com> PR 29529 @@ -1,7 +1,12 @@ -*- text -*- +* The linker has a new command line option to suppress the generation of any + warning or error messages. This can be useful when there is a need to create + a known non-working binary. The option is -w or --no-warnings. + * ld now supports zstd compressed debug sections. The new option --compress-debug-sections=zstd compresses debug sections with zstd. + * Add --enable-default-compressed-debug-sections-algorithm={zlib,zstd} that selects the default compression algorithm for --enable-compressed-debug-sections. @@ -252,9 +252,12 @@ typedef struct changes due to the alignment of an input section. */ bool warn_section_align; - /* If TRUE, warning messages are fatal */ + /* If TRUE, warning messages are fatal. */ bool fatal_warnings; + /* If TRUE, warning and error messages are ignored. */ + bool no_warnings; + sort_order sort_common; bool text_read_only; @@ -1876,6 +1876,15 @@ in filename invoked by -R or --just-symbols Treat all warnings as errors. The default behaviour can be restored with the option @option{--no-fatal-warnings}. +@kindex -w +@kindex --no-warnings +@item -w +@itemx --no-warnings +Do not display any warning or error messages. This overrides +@option{--fatal-warnings} if it has been enabled. This option can be +used when it is known that the output binary will not work, but there +is still a need to create it. + @kindex --force-exe-suffix @item --force-exe-suffix Make sure that an output file has a .exe suffix. @@ -88,6 +88,7 @@ enum option_values OPTION_WARN_CONSTRUCTORS, OPTION_WARN_FATAL, OPTION_NO_WARN_FATAL, + OPTION_NO_WARNINGS, OPTION_WARN_MULTIPLE_GP, OPTION_WARN_ONCE, OPTION_WARN_SECTION_ALIGN, diff --git a/ld/ldmisc.c b/ld/ldmisc.c index 3a02f75..033e9c2 100644 --- a/ld/ldmisc.c +++ b/ld/ldmisc.c @@ -95,6 +95,9 @@ vfinfo (FILE *fp, const char *fmt, va_list ap, bool is_warning) } type; } args[9]; + if (is_warning && config.no_warnings) + return; + for (arg_no = 0; arg_no < sizeof (args) / sizeof (args[0]); arg_no++) args[arg_no].type = Bad; diff --git a/ld/lexsup.c b/ld/lexsup.c index 0068ff5..d107bd7 100644 --- a/ld/lexsup.c +++ b/ld/lexsup.c @@ -381,6 +381,9 @@ static const struct ld_option ld_options[] = { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED}, '\0', NULL, N_("Do not allow unresolved references in object files"), TWO_DASHES }, + { {"no-warnings", no_argument, NULL, OPTION_NO_WARNINGS}, + 'w', NULL, N_("Do not display any warning or error messages"), + TWO_DASHES }, { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED}, '\0', NULL, N_("Allow unresolved references in shared libraries"), TWO_DASHES }, @@ -1554,6 +1557,11 @@ parse_args (unsigned argc, char **argv) case OPTION_NO_WARN_FATAL: config.fatal_warnings = false; break; + case OPTION_NO_WARNINGS: + case 'w': + config.no_warnings = true; + config.fatal_warnings = false; + break; case OPTION_WARN_MULTIPLE_GP: config.warn_multiple_gp = true; break; |