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-rw-r--r--ld/ChangeLog7
-rw-r--r--ld/lexsup.c416
2 files changed, 345 insertions, 78 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog
index fbf1437..bb47e00 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -6,6 +6,13 @@ Tue Apr 9 14:22:15 1996 Michael Meissner <meissner@tiktok.cygnus.com>
Tue Apr 9 12:18:57 1996 Ian Lance Taylor <ian@cygnus.com>
+ * lexsup.c (ld_options): New static array.
+ (parse_args): Build shortopts and longopts from ld_options array.
+ (help): New static function.
+ * ldver.h (help): Don't declare.
+ * ldver.c (ldversion): Reindent.
+ (help): Remove.
+
* ld.texinfo, ld.1: Mention -E as a synonym for -export-dynamic.
Mon Apr 8 11:56:23 1996 Ian Lance Taylor <ian@cygnus.com>
diff --git a/ld/lexsup.c b/ld/lexsup.c
index 7e6184c..e82fda0 100644
--- a/ld/lexsup.c
+++ b/ld/lexsup.c
@@ -46,28 +46,13 @@ unsigned long strtoul ();
static void set_default_dirlist PARAMS ((char *dirlist_ptr));
static void set_section_start PARAMS ((char *sect, char *valstr));
+static void help PARAMS ((void));
/* Non-zero if we are processing a --defsym from the command line. */
int parsing_defsym = 0;
-void
-parse_args (argc, argv)
- int argc;
- char **argv;
-{
- int i;
- int ingroup = 0;
- char *default_dirlist = NULL;
-
- /* Starting the short option string with '-' is for programs that
- expect options and other ARGV-elements in any order and that care about
- the ordering of the two. We describe each non-option ARGV-element
- as if it were the argument of an option with character code 1. */
-
- const char *shortopts =
- "-a:A:b:c:de:EF::G:gh:iL:l:Mm:NnO:o:R:rSsT:tu:VvXxY:y:z:()";
-
- /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
+/* Codes used for the long options with no short synonyms. 150 isn't
+ special; it's just an arbitrary non-ASCII char value. */
#define OPTION_ASSERT 150
#define OPTION_CALL_SHARED (OPTION_ASSERT + 1)
@@ -110,66 +95,249 @@ parse_args (argc, argv)
#define OPTION_WHOLE_ARCHIVE (OPTION_SPLIT_BY_FILE + 1)
#define OPTION_WRAP (OPTION_WHOLE_ARCHIVE + 1)
- static struct option longopts[] = {
- /* Sorted alphabeticaly, except for the PE options grouped at the end. */
- {"assert", required_argument, NULL, OPTION_ASSERT},
- {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
- {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
- {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
- {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
- {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
- {"dc", no_argument, NULL, 'd'},
- {"defsym", required_argument, NULL, OPTION_DEFSYM},
- {"dll-verbose", no_argument, NULL, OPTION_VERSION}, /* Linux. */
- {"dn", no_argument, NULL, OPTION_NON_SHARED},
- {"dp", no_argument, NULL, 'd'},
- {"dy", no_argument, NULL, OPTION_CALL_SHARED},
- {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
- {"EB", no_argument, NULL, OPTION_EB},
- {"EL", no_argument, NULL, OPTION_EL},
- {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
- {"end-group", no_argument, NULL, ')'},
- {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
- {"format", required_argument, NULL, 'b'},
- {"help", no_argument, NULL, OPTION_HELP},
- {"Map", required_argument, NULL, OPTION_MAP},
- {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
- {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
- {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
- {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
- {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
- {"oformat", required_argument, NULL, OPTION_OFORMAT},
- {"Qy", no_argument, NULL, OPTION_IGNORE},
- {"qmagic", no_argument, NULL, OPTION_IGNORE}, /* Linux compatibility. */
- {"relax", no_argument, NULL, OPTION_RELAX},
- {"retain-symbols-file", required_argument, NULL, OPTION_RETAIN_SYMBOLS_FILE},
- {"rpath", required_argument, NULL, OPTION_RPATH},
- {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
- {"shared", no_argument, NULL, OPTION_SHARED},
- {"soname", required_argument, NULL, OPTION_SONAME},
- {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
- {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
- {"start-group", no_argument, NULL, '('},
- {"stats", no_argument, NULL, OPTION_STATS},
- {"static", no_argument, NULL, OPTION_NON_SHARED},
- {"Tbss", required_argument, NULL, OPTION_TBSS},
- {"Tdata", required_argument, NULL, OPTION_TDATA},
- {"Ttext", required_argument, NULL, OPTION_TTEXT},
- {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
- {"Ur", no_argument, NULL, OPTION_UR},
- {"verbose", no_argument, NULL, OPTION_VERBOSE},
- {"version", no_argument, NULL, OPTION_VERSION},
- {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
- {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
- {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
- {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
- {"split-by-reloc", required_argument, NULL, OPTION_SPLIT_BY_RELOC},
- {"split-by-file", no_argument, NULL, OPTION_SPLIT_BY_FILE},
- {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
- {"wrap", required_argument, NULL, OPTION_WRAP},
-
- {NULL, no_argument, NULL, 0}
- };
+/* The long options. This structure is used for both the option
+ parsing and the help text. */
+
+struct ld_option
+{
+ /* The long option information. */
+ struct option opt;
+ /* The short option with the same meaning ('\0' if none). */
+ char shortopt;
+ /* The name of the argument (NULL if none). */
+ const char *arg;
+ /* The documentation string. If this is NULL, this is a synonym for
+ the previous option. */
+ const char *doc;
+ enum
+ {
+ /* Use one dash before long option name. */
+ ONE_DASH,
+ /* Use two dashes before long option name. */
+ TWO_DASHES,
+ /* Don't mention this option in --help output. */
+ NO_HELP
+ } control;
+};
+
+static const struct ld_option ld_options[] =
+{
+ { {NULL, required_argument, NULL, '\0'},
+ 'a', "KEYWORD", "Shared library control for HP/UX compatibility",
+ ONE_DASH },
+ { {"architecture", required_argument, NULL, 'A'},
+ 'A', "ARCH", "Set architecture" , TWO_DASHES },
+ { {"format", required_argument, NULL, 'b'},
+ 'b', "TARGET", "Specify target for following input files", TWO_DASHES },
+ { {"mri-script", required_argument, NULL, 'c'},
+ 'c', "FILE", "Read MRI format linker script", TWO_DASHES },
+ { {"dc", no_argument, NULL, 'd'},
+ 'd', NULL, "Force common symbols to be defined", ONE_DASH },
+ { {"dp", no_argument, NULL, 'd'},
+ '\0', NULL, NULL, ONE_DASH },
+ { {"entry", required_argument, NULL, 'e'},
+ 'e', "ADDRESS", "Set start address", TWO_DASHES },
+ { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
+ 'E', NULL, "Export all dynamic symbols", TWO_DASHES },
+ { {NULL, no_argument, NULL, '\0'},
+ 'F', NULL, "Ignored", ONE_DASH },
+ { {"gpsize", required_argument, NULL, 'G'},
+ 'G', "SIZE", "Small data size (if no size, same as --shared)",
+ TWO_DASHES },
+ { {NULL, no_argument, NULL, '\0'},
+ 'g', NULL, "Ignored", ONE_DASH },
+ { {"soname", required_argument, NULL, OPTION_SONAME},
+ 'h', "FILENAME", "Set internal name of shared library", ONE_DASH },
+ { {"library", required_argument, NULL, 'l'},
+ 'l', "LIBNAME", "Search for library LIBNAME", TWO_DASHES },
+ { {"library-path", required_argument, NULL, 'L'},
+ 'L', "DIRECTORY", "Add DIRECTORY to library search path", TWO_DASHES },
+ { {NULL, required_argument, NULL, '\0'},
+ 'm', "EMULATION", "Set emulation", ONE_DASH },
+ { {"print-map", no_argument, NULL, 'M'},
+ 'M', NULL, "Print map file on standard output", TWO_DASHES },
+ { {"nmagic", no_argument, NULL, 'n'},
+ 'n', NULL, "Do not page align data", TWO_DASHES },
+ { {"omagic", no_argument, NULL, 'N'},
+ 'N', NULL, "Do not page align data, do not make text readonly",
+ TWO_DASHES },
+ { {"output", required_argument, NULL, 'o'},
+ 'o', "FILE", "Set output file name", TWO_DASHES },
+ { {NULL, required_argument, NULL, '\0'},
+ 'O', NULL, "Ignored", ONE_DASH },
+ { {"relocateable", no_argument, NULL, 'r'},
+ 'r', NULL, "Generate relocateable output", TWO_DASHES },
+ { {NULL, no_argument, NULL, '\0'},
+ 'i', NULL, NULL, ONE_DASH },
+ { {"just-symbols", required_argument, NULL, 'R'},
+ 'R', "FILE", "Just link symbols (if directory, same as --rpath)",
+ TWO_DASHES },
+ { {"strip-all", no_argument, NULL, 's'},
+ 's', NULL, "Strip all symbols", TWO_DASHES },
+ { {"strip-debug", no_argument, NULL, 'S'},
+ 'S', NULL, "Strip debugging symbols", TWO_DASHES },
+ { {"trace", no_argument, NULL, 't'},
+ 't', NULL, "Trace file opens", TWO_DASHES },
+ { {"script", required_argument, NULL, 'T'},
+ 'T', "FILE", "Read linker script", TWO_DASHES },
+ { {"undefined", required_argument, NULL, 'u'},
+ 'u', "SYMBOL", "Start with undefined reference to SYMBOL", TWO_DASHES },
+ { {"version", no_argument, NULL, OPTION_VERSION},
+ 'v', NULL, "Print version information", TWO_DASHES },
+ { {NULL, no_argument, NULL, '\0'},
+ 'V', NULL, "Print version and emulation information", ONE_DASH },
+ { {"discard-all", no_argument, NULL, 'x'},
+ 'x', NULL, "Discard all local symbols", TWO_DASHES },
+ { {"discard-locals", no_argument, NULL, 'X'},
+ 'X', NULL, "Discard temporary local symbols", TWO_DASHES },
+ { {"trace-symbol", required_argument, NULL, 'y'},
+ 'y', "SYMBOL", "Trace mentions of SYMBOL", TWO_DASHES },
+ { {NULL, required_argument, NULL, '\0'},
+ 'Y', "PATH", "Default search path for Solaris compatibility", ONE_DASH },
+ { {NULL, required_argument, NULL, '\0'},
+ 'z', "KEYWORD", "Ignored for Solaris compatibility", ONE_DASH },
+ { {"start-group", no_argument, NULL, '('},
+ '(', NULL, "Start a group", TWO_DASHES },
+ { {"end-group", no_argument, NULL, ')'},
+ ')', NULL, "End a group", TWO_DASHES },
+ { {"assert", required_argument, NULL, OPTION_ASSERT},
+ '\0', "KEYWORD", "Ignored for SunOS compatibility", ONE_DASH },
+ { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
+ '\0', NULL, "Link against shared libraries", ONE_DASH },
+ { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
+ '\0', NULL, NULL, ONE_DASH },
+ { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
+ '\0', NULL, NULL, ONE_DASH },
+ { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
+ '\0', NULL, "Do not link against shared libraries", ONE_DASH },
+ { {"dn", no_argument, NULL, OPTION_NON_SHARED},
+ '\0', NULL, NULL, ONE_DASH },
+ { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
+ '\0', NULL, NULL, ONE_DASH },
+ { {"static", no_argument, NULL, OPTION_NON_SHARED},
+ '\0', NULL, NULL, ONE_DASH },
+ { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
+ '\0', NULL, "Bind global references locally", ONE_DASH },
+ { {"defsym", required_argument, NULL, OPTION_DEFSYM},
+ '\0', "SYMBOL=EXPRESSION", "Define a symbol", TWO_DASHES },
+ { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
+ '\0', "PROGRAM", "Set the dynamic linker to use", TWO_DASHES },
+ { {"EB", no_argument, NULL, OPTION_EB},
+ '\0', NULL, "Link big-endian objects", ONE_DASH },
+ { {"EL", no_argument, NULL, OPTION_EL},
+ '\0', NULL, "Link little-endian objects", ONE_DASH },
+ { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
+ '\0', NULL, "Generate embedded relocs", TWO_DASHES},
+ { {"help", no_argument, NULL, OPTION_HELP},
+ '\0', NULL, "Print option help", TWO_DASHES },
+ { {"Map", required_argument, NULL, OPTION_MAP},
+ '\0', "FILE", "Write a map file", ONE_DASH },
+ { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
+ '\0', NULL, "Use less memory and more disk I/O", TWO_DASHES },
+ { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
+ '\0', NULL, "Turn off --whole-archive", TWO_DASHES },
+ { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
+ '\0', NULL, "Create an output file even if errors occur", TWO_DASHES },
+ { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
+ '\0', NULL, NULL, NO_HELP },
+ { {"oformat", required_argument, NULL, OPTION_OFORMAT},
+ '\0', "TARGET", "Specify target of output file", TWO_DASHES },
+ { {"qmagic", no_argument, NULL, OPTION_IGNORE},
+ '\0', NULL, "Ignored for Linux compatibility", ONE_DASH },
+ { {"Qy", no_argument, NULL, OPTION_IGNORE},
+ '\0', NULL, "Ignored for SVR4 compatibility", ONE_DASH },
+ { {"relax", no_argument, NULL, OPTION_RELAX},
+ '\0', NULL, "Relax branches on certain targets", TWO_DASHES },
+ { {"retain-symbols-file", required_argument, NULL,
+ OPTION_RETAIN_SYMBOLS_FILE},
+ '\0', "FILE", "Keep only symbols listed in FILE", TWO_DASHES },
+ { {"rpath", required_argument, NULL, OPTION_RPATH},
+ '\0', "PATH", "Set runtime shared library search path", ONE_DASH },
+ { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
+ '\0', "PATH", "Set line time shared library search path", ONE_DASH },
+ { {"shared", no_argument, NULL, OPTION_SHARED},
+ '\0', NULL, "Create a shared library", ONE_DASH },
+ { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
+ '\0', NULL, NULL, ONE_DASH },
+ { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
+ '\0', NULL, "Sort common symbols by size", TWO_DASHES },
+ { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
+ '\0', NULL, NULL, NO_HELP },
+ { {"split-by-file", no_argument, NULL, OPTION_SPLIT_BY_FILE},
+ '\0', NULL, "Split output sections for each file", TWO_DASHES },
+ { {"split-by-reloc", required_argument, NULL, OPTION_SPLIT_BY_RELOC},
+ '\0', "COUNT", "Split output sections every COUNT relocs", TWO_DASHES },
+ { {"stats", no_argument, NULL, OPTION_STATS},
+ '\0', NULL, "Print memory usage statistics", TWO_DASHES },
+ { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
+ '\0', NULL, "Use same format as native linker", TWO_DASHES },
+ { {"Tbss", required_argument, NULL, OPTION_TBSS},
+ '\0', "ADDRESS", "Set address of .bss section", ONE_DASH },
+ { {"Tdata", required_argument, NULL, OPTION_TDATA},
+ '\0', "ADDRESS", "Set address of .data section", ONE_DASH },
+ { {"Ttext", required_argument, NULL, OPTION_TTEXT},
+ '\0', "ADDRESS", "Set address of .text section", ONE_DASH },
+ { {"Ur", no_argument, NULL, OPTION_UR},
+ '\0', NULL, "Build global constructor/destructor tables", ONE_DASH },
+ { {"verbose", no_argument, NULL, OPTION_VERBOSE},
+ '\0', NULL, "Output lots of information during link", TWO_DASHES },
+ { {"dll-verbose", no_argument, NULL, OPTION_VERSION}, /* Linux. */
+ '\0', NULL, NULL, NO_HELP },
+ { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
+ '\0', NULL, "Warn about duplicate common symbols", TWO_DASHES },
+ { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
+ '\0', NULL, "Warn if global constructors/destructors are seen",
+ TWO_DASHES },
+ { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
+ '\0', NULL, "Warn if the multiple GP values are used", TWO_DASHES },
+ { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
+ '\0', NULL, "Warn only once per undefined symbol", TWO_DASHES },
+ { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
+ '\0', NULL, "Include all objects from following archives", TWO_DASHES },
+ { {"wrap", required_argument, NULL, OPTION_WRAP},
+ '\0', "SYMBOL", "Use wrapper functions for SYMBOL", TWO_DASHES }
+};
+
+#define OPTION_COUNT (sizeof ld_options / sizeof ld_options[0])
+
+void
+parse_args (argc, argv)
+ int argc;
+ char **argv;
+{
+ int i, is, il;
+ int ingroup = 0;
+ char *default_dirlist = NULL;
+ char shortopts[OPTION_COUNT * 2 + 2];
+ struct option longopts[OPTION_COUNT + 1];
+
+ /* Starting the short option string with '-' is for programs that
+ expect options and other ARGV-elements in any order and that care about
+ the ordering of the two. We describe each non-option ARGV-element
+ as if it were the argument of an option with character code 1. */
+ shortopts[0] = '-';
+ is = 1;
+ il = 0;
+ for (i = 0; i < OPTION_COUNT; i++)
+ {
+ if (ld_options[i].shortopt != '\0')
+ {
+ shortopts[is] = ld_options[i].shortopt;
+ ++is;
+ if (ld_options[i].opt.has_arg == required_argument)
+ {
+ shortopts[is] = ':';
+ ++is;
+ }
+ }
+ if (ld_options[i].opt.name != NULL)
+ {
+ longopts[il] = ld_options[i].opt;
+ ++il;
+ }
+ }
+ shortopts[is] = '\0';
+ longopts[il].name = NULL;
/* The -G option is ambiguous on different platforms. Sometimes it
specifies the largest data size to put into the small data
@@ -596,3 +764,95 @@ set_section_start (sect, valstr)
lang_section_start (sect, exp_intop (val));
}
+/* Print help messages for the options. */
+
+static void
+help ()
+{
+ int i;
+ const char **targets, **pp;
+
+ printf ("Usage: %s [options] file...\n", program_name);
+
+ printf ("Options:\n");
+ for (i = 0; i < OPTION_COUNT; i++)
+ {
+ if (ld_options[i].doc != NULL)
+ {
+ boolean comma;
+ int len;
+ int j;
+
+ printf (" ");
+
+ comma = false;
+ len = 2;
+
+ j = i;
+ do
+ {
+ if (ld_options[j].shortopt != '\0'
+ && ld_options[j].control != NO_HELP)
+ {
+ printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
+ len += (comma ? 2 : 0) + 2;
+ if (ld_options[j].arg != NULL)
+ {
+ printf (" %s", ld_options[j].arg);
+ len += 1 + strlen (ld_options[j].arg);
+ }
+ comma = true;
+ }
+ ++j;
+ }
+ while (j < OPTION_COUNT && ld_options[j].doc == NULL);
+
+ j = i;
+ do
+ {
+ if (ld_options[j].opt.name != NULL
+ && ld_options[j].control != NO_HELP)
+ {
+ printf ("%s-%s%s",
+ comma ? ", " : "",
+ ld_options[j].control == TWO_DASHES ? "-" : "",
+ ld_options[j].opt.name);
+ len += ((comma ? 2 : 0)
+ + 1
+ + (ld_options[j].control == TWO_DASHES ? 1 : 0)
+ + strlen (ld_options[j].opt.name));
+ if (ld_options[j].arg != NULL)
+ {
+ printf (" %s", ld_options[j].arg);
+ len += 1 + strlen (ld_options[j].arg);
+ }
+ comma = true;
+ }
+ ++j;
+ }
+ while (j < OPTION_COUNT && ld_options[j].doc == NULL);
+
+ if (len >= 30)
+ {
+ printf ("\n");
+ len = 0;
+ }
+
+ for (; len < 30; len++)
+ putchar (' ');
+
+ printf ("%s\n", ld_options[i].doc);
+ }
+ }
+
+ printf ("%s: supported targets:", program_name);
+ targets = bfd_target_list ();
+ for (pp = targets; *pp != NULL; pp++)
+ printf (" %s", *pp);
+ free (targets);
+ printf ("\n");
+
+ printf ("%s: supported emulations: ", program_name);
+ ldemul_list_emulations (stdout);
+ printf ("\n");
+}
generated by cgit v1.1 at 2024-12-17 20:10:41 +0000