From be2bf5dc93ca1ec148c605a5f25b3f7a3028bf3d Mon Sep 17 00:00:00 2001 From: David Malcolm Date: Wed, 10 Jan 2024 08:33:48 -0500 Subject: gcc-urlifier: handle option prefixes such as '-fno-' Given e.g. this missppelled option (omitting the trailing 's'): $ LANG=C ./xgcc -B. -fno-inline-small-function xgcc: error: unrecognized command-line option '-fno-inline-small-function'; did you mean '-fno-inline-small-functions'? we weren't providing a documentation URL for the suggestion. The issue is the URLification code uses find_opt, which doesn't consider the various '-fno-' prefixes. This patch adds a way to find the pertinent prefix remapping and uses it when determining URLs. With this patch, the suggestion '-fno-inline-small-functions' now gets a documentation link (to that of '-finline-small-functions'). gcc/ChangeLog: * gcc-urlifier.cc (gcc_urlifier::get_url_suffix_for_option): Handle prefix mappings before calling find_opt. (selftest::gcc_urlifier_cc_tests): Add example of urlifying a "-fno-"-prefixed command-line option. * opts-common.cc (get_option_prefix_remapping): New. * opts.h (get_option_prefix_remapping): New decl. Signed-off-by: David Malcolm --- gcc/opts.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'gcc/opts.h') diff --git a/gcc/opts.h b/gcc/opts.h index 64f94f6..82800b8 100644 --- a/gcc/opts.h +++ b/gcc/opts.h @@ -491,6 +491,9 @@ extern const struct zero_call_used_regs_opts_s extern vec help_option_arguments; +extern const char *get_option_prefix_remapping (const char *p, size_t sz, + const char **out_new_prefix); + extern void add_misspelling_candidates (auto_vec *candidates, const struct cl_option *option, const char *base_option); -- cgit v1.1