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| author | Nick Clifton <nickc@redhat.com> | 2022-05-18 13:15:22 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2022-05-18 13:15:22 +0100 |
| commit | 2c3cc81e068464b5a3d5bf19a9cf3cf3dd6b7b55 (patch) | |
| tree | 5d5ae06c550788f2885c324e074395f6f10a971e /binutils/nm.c | |
| parent | c76d61da4a65eaadca861bf6c77d579a5cc3f422 (diff) | |
| download | binutils-2c3cc81e068464b5a3d5bf19a9cf3cf3dd6b7b55.zip binutils-2c3cc81e068464b5a3d5bf19a9cf3cf3dd6b7b55.tar.gz binutils-2c3cc81e068464b5a3d5bf19a9cf3cf3dd6b7b55.tar.bz2 | |
Add a --no-weak option to nm.
PR 29135
* nm.c (non_weak): New variable.
(filter_symbols): When non-weak is true, ignore weak symbols.
(long_options): Add --no-weak.
(usage): Mention --no-weak.
(main): Handle -W/--no-weak.
* doc/binutils.texi: Document new feature.
* NEWS: Mention the new feature.
* testsuite/binutils-all/nm.exp: Add test of new feature.
* testsuite/binutils-all/no-weak.s: New test source file.
Diffstat (limited to 'binutils/nm.c')
| -rw-r--r-- | binutils/nm.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/binutils/nm.c b/binutils/nm.c index 9edaa8d..60e4d85 100644 --- a/binutils/nm.c +++ b/binutils/nm.c @@ -176,6 +176,7 @@ static const char *print_format_string = NULL; static int do_demangle = 0; /* Pretty print C++ symbol names. */ static int external_only = 0; /* Print external symbols only. */ static int defined_only = 0; /* Print defined symbols only. */ +static int non_weak = 0; /* Ignore weak symbols. */ static int no_sort = 0; /* Don't sort; print syms in order found. */ static int print_debug_syms = 0;/* Print debugger-only symbols too. */ static int print_armap = 0; /* Describe __.SYMDEF data in archive files. */ @@ -281,6 +282,7 @@ static struct option long_options[] = {"undefined-only", no_argument, 0, 'u'}, {"unicode", required_argument, NULL, OPTION_UNICODE}, {"version", no_argument, &show_version, 1}, + {"no-weak", no_argument, 0, 'W'}, {"with-symbol-versions", no_argument, &with_symbol_versions, 1}, {"without-symbol-versions", no_argument, &with_symbol_versions, 0}, {0, no_argument, 0, 0} @@ -365,6 +367,8 @@ usage (FILE *stream, int status) --unicode={default|show|invalid|hex|escape|highlight}\n\ Specify how to treat UTF-8 encoded unicode characters\n")); fprintf (stream, _("\ + -W, --no-weak Ignore weak symbols\n")); + fprintf (stream, _("\ --with-symbol-versions Display version strings after symbol names\n")); fprintf (stream, _("\ -X 32_64 (ignored)\n")); @@ -808,6 +812,8 @@ filter_symbols (bfd *abfd, bool is_dynamic, void *minisyms, | BSF_GNU_UNIQUE)) != 0 || bfd_is_und_section (sym->section) || bfd_is_com_section (sym->section)); + else if (non_weak) + keep = ((sym->flags & BSF_WEAK) == 0); else keep = 1; @@ -2052,7 +2058,7 @@ main (int argc, char **argv) fatal (_("fatal error: libbfd ABI mismatch")); set_default_bfd_target (); - while ((c = getopt_long (argc, argv, "aABCDef:gHhjJlnopPrSst:uU:vVvX:", + while ((c = getopt_long (argc, argv, "aABCDef:gHhjJlnopPrSst:uU:vVvWX:", long_options, (int *) 0)) != EOF) { switch (c) @@ -2171,6 +2177,9 @@ main (int argc, char **argv) case 'V': show_version = 1; break; + case 'W': + non_weak = 1; + break; case 'X': /* Ignored for (partial) AIX compatibility. On AIX, the argument has values 32, 64, or 32_64, and specifies that |