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| author | Faraz Shahbazker <fshahbazker@wavecomp.com> | 2019-04-02 20:17:16 +0000 |
|---|---|---|
| committer | Faraz Shahbazker <fshahbazker@wavecomp.com> | 2019-04-11 10:16:31 -0700 |
| commit | 035801cebe9ffbdddb465b81ae514a465ce9c64c (patch) | |
| tree | 1bec295602b51ae66b0c83a96673726cb10c6d46 /ld/ldlang.c | |
| parent | c30391f893fd99e768c1a6282763ef553c45f1ff (diff) | |
| download | gdb-035801cebe9ffbdddb465b81ae514a465ce9c64c.zip gdb-035801cebe9ffbdddb465b81ae514a465ce9c64c.tar.gz gdb-035801cebe9ffbdddb465b81ae514a465ce9c64c.tar.bz2 | |
ld: Add --no-print-map-discarded option
Add a new option to disable the listing of discarded sections
in map file output. The use case stems from a large application
built with -ffunction-sections --gc-sections where the list of
discarded sections blows up the map file output. The default
behaviour remains to print discarded sections, but the new option
allows us to disable it.
ld/
* NEWS: Mention new option --no-print-map-discarded.
* ld.h (ld_config_type) <print_map_discarded>: New field.
* ldlang.c (lang_map): Conditionally output discarded sections
in map files based on configuration option.
* ldlex.h (option_values) <OPTION_PRINT_MAP_DISCARDED,
OPTION_NO_PRINT_MAP_DISCARDED>: New.
* ldmain.c (main): Enabled print_map_discarded by default.
* lexsup.c (ld_options): Add new command-line options.
(parse_args) <OPTION_NO_PRINT_MAP_DISCARDED,
OPTION_PRINT_MAP_DISCARDED>: New cases.
* ld.texi: Document new options.
* testsuite/ld-gc/gc.exp: Add new test.
* testsuite/ld-gc/skip-map-discarded.s: New file.
* testsuite/ld-gc/skip-map-discarded.d: New file.
* testsuite/ld-gc/skip-map-discarded.map: New file.
Diffstat (limited to 'ld/ldlang.c')
| -rw-r--r-- | ld/ldlang.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/ld/ldlang.c b/ld/ldlang.c index 1952d4a..898735e 100644 --- a/ld/ldlang.c +++ b/ld/ldlang.c @@ -2251,19 +2251,20 @@ lang_map (void) || file->flags.just_syms) continue; - for (s = file->the_bfd->sections; s != NULL; s = s->next) - if ((s->output_section == NULL - || s->output_section->owner != link_info.output_bfd) - && (s->flags & (SEC_LINKER_CREATED | SEC_KEEP)) == 0) - { - if (!dis_header_printed) - { - fprintf (config.map_file, _("\nDiscarded input sections\n\n")); - dis_header_printed = TRUE; - } + if (config.print_map_discarded) + for (s = file->the_bfd->sections; s != NULL; s = s->next) + if ((s->output_section == NULL + || s->output_section->owner != link_info.output_bfd) + && (s->flags & (SEC_LINKER_CREATED | SEC_KEEP)) == 0) + { + if (! dis_header_printed) + { + fprintf (config.map_file, _("\nDiscarded input sections\n\n")); + dis_header_printed = TRUE; + } - print_input_section (s, TRUE); - } + print_input_section (s, TRUE); + } } minfo (_("\nMemory Configuration\n\n")); |