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Added new option --target-help.

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From-SVN: r36910
This commit is contained in:
Chandrakala Chavva 2000-10-17 16:07:51 -04:00 committed by Chandra Chavva
parent c330e9c1e2
commit 10501d8f2f
3 changed files with 35 additions and 5 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2000-10-17 Chandrakala Chavva <cchavva@redhat.com>
* gcc.c: New options --target-help.
(process_command): Added code to parse this new option.
* toplev.c (display_target_options): New function to support the
above new option.
* cppinit.c (new_pending_directive) : New option OPT_target__help.
(cpp_handle_option): Support this new option.
* invoke.texi: Added notes about --target-help option.
2000-10-17 Graham Stott <grahams@redhat.com>
* config/i386/i386.md (testqi_1): Add missing operand prefix

6
gcc/invoke.texi
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@ -90,7 +90,7 @@ in the following sections.
@item Overall Options
@xref{Overall Options,,Options Controlling the Kind of Output}.
@smallexample
-c -S -E -o @var{file} -pipe -pass-exit-codes -v --help -x @var{language}
-c -S -E -o @var{file} -pipe -pass-exit-codes -v --target-help --help -x @var{language}
@end smallexample
@item C Language Options
@ -646,6 +646,10 @@ invoked by @code{gcc}, so that they can display the command line options
they accept. If the @code{-W} option is also specified then command
line options which have no documentation associated with them will also
be displayed.
@item --target-help
Print (on the standard output) a description of target specific command
line options for each tool.
@end table
@node Invoking G++

24
gcc/toplev.c
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@ -170,6 +170,7 @@ static void output_lang_identify PARAMS ((FILE *)) ATTRIBUTE_UNUSED;
#endif
static void compile_file PARAMS ((const char *));
static void display_help PARAMS ((void));
static void display_target_options PARAMS ((void));
static void mark_file_stack PARAMS ((void *));
static void decode_d_option PARAMS ((const char *));
@ -3886,6 +3887,15 @@ display_help ()
printf (_("\nThere are undocumented %s specific options as well.\n"),
lang);
display_target_options ();
}
void
display_target_options ()
{
int undoc,i;
unsigned long;
if (ARRAY_SIZE (target_switches) > 1
#ifdef TARGET_OPTIONS
|| ARRAY_SIZE (target_options) > 1
@ -3910,10 +3920,10 @@ display_help ()
undoc = 1;
if (extra_warnings)
printf (_(" -m%-21.21s [undocumented]\n"), option);
printf (_(" -m%-23.23s [undocumented]\n"), option);
}
else if (* description != 0)
doc += printf (" -m%-21.21s %s\n", option, description);
doc += printf (" -m%-23.23s %s\n", option, description);
}
#ifdef TARGET_OPTIONS
@ -3929,10 +3939,10 @@ display_help ()
undoc = 1;
if (extra_warnings)
printf (_(" -m%-21.21s [undocumented]\n"), option);
printf (_(" -m%-23.23s [undocumented]\n"), option);
}
else if (* description != 0)
doc += printf (" -m%-21.21s %s\n", option, description);
doc += printf (" -m%-23.23s %s\n", option, description);
}
#endif
if (undoc)
@ -4307,6 +4317,12 @@ independent_decode_option (argc, argv)
exit (0);
}
if (!strcmp (arg, "-target-help"))
{
display_target_options ();
exit (0);
}
if (*arg == 'Y')
arg++;