Message ID | 20220824115956.737931-35-philip.herron@embecosm.com |
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State | New, archived |
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Wed, 24 Aug 2022 05:01:20 -0700 (PDT) From: herron.philip@googlemail.com X-Google-Original-From: philip.herron@embecosm.com To: gcc-patches@gcc.gnu.org Subject: [PATCH Rust front-end v2 34/37] gccrs: add lang.opt Date: Wed, 24 Aug 2022 12:59:53 +0100 Message-Id: <20220824115956.737931-35-philip.herron@embecosm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220824115956.737931-1-philip.herron@embecosm.com> References: <20220824115956.737931-1-philip.herron@embecosm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-12.0 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, KAM_SHORT, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list <gcc-patches.gcc.gnu.org> List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe> List-Archive: <https://gcc.gnu.org/pipermail/gcc-patches/> List-Post: <mailto:gcc-patches@gcc.gnu.org> List-Help: <mailto:gcc-patches-request@gcc.gnu.org?subject=help> List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe> Reply-To: philip.herron@embecosm.com Cc: gcc-rust@gcc.gnu.org, Philip Herron <philip.herron@embecosm.com> Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" <gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org> X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1742044624715618997?= X-GMAIL-MSGID: =?utf-8?q?1742044624715618997?= |
Series |
[Rust,front-end,v2,01/37] Use DW_ATE_UTF for the Rust 'char' type
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Commit Message
herron.philip@googlemail.com
Aug. 24, 2022, 11:59 a.m. UTC
From: Philip Herron <philip.herron@embecosm.com>
We have some rust specific langugage options note -fwrapv is enabled by
default in the code. We are trying to respect options such as
-Wunused-result which we get by porting over c++ no-discard for rust's
must-use attribute, so we have enabled these by default directly here.
---
gcc/rust/lang.opt | 118 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 118 insertions(+)
create mode 100644 gcc/rust/lang.opt
Comments
On Wed, Aug 24, 2022 at 2:13 PM <herron.philip@googlemail.com> wrote: > > From: Philip Herron <philip.herron@embecosm.com> > > We have some rust specific langugage options note -fwrapv is enabled by > default in the code. We are trying to respect options such as > -Wunused-result which we get by porting over c++ no-discard for rust's > must-use attribute, so we have enabled these by default directly here. LGTM Richard. > --- > gcc/rust/lang.opt | 118 ++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 118 insertions(+) > create mode 100644 gcc/rust/lang.opt > > diff --git a/gcc/rust/lang.opt b/gcc/rust/lang.opt > new file mode 100644 > index 00000000000..1f6855ede1d > --- /dev/null > +++ b/gcc/rust/lang.opt > @@ -0,0 +1,118 @@ > +; Options for the Rust front end. > +; Copyright (C) 2003-2022 Free Software Foundation, Inc. > +; > +; This file is part of GCC. > +; > +; GCC is free software; you can redistribute it and/or modify it under > +; the terms of the GNU General Public License as published by the Free > +; Software Foundation; either version 3, or (at your option) any later > +; version. > +; > +; GCC is distributed in the hope that it will be useful, but WITHOUT ANY > +; WARRANTY; without even the implied warranty of MERCHANTABILITY or > +; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License > +; for more details. > +; > +; You should have received a copy of the GNU General Public License > +; along with GCC; see the file COPYING3. If not see > +; <http://www.gnu.org/licenses/>. > + > +; See the GCC internals manual for a description of this file's format. > + > +; Please try to keep this file in ASCII collating order. > + > +; Describes command-line options used by this frontend > + > +Language > +Rust > + > +I > +Rust Joined Separate > +; Documented in c.opt > + > +L > +Rust Joined Separate > +; Not documented > + > +Wall > +Rust > +; Documented in c.opt > + > +Wunused-variable > +Rust Var(warn_unused_variable) Init(1) Warning > +; documented in common.opt > + > +Wunused-const-variable > +Rust Warning Alias(Wunused-const-variable=, 2, 0) > +Warn when a const variable is unused. > + > +Wunused-const-variable= > +Rust Joined RejectNegative UInteger Var(warn_unused_const_variable) Init(1) Warning LangEnabledBy(Rust,Wunused-variable, 1, 0) IntegerRange(0, 2) > +Warn when a const variable is unused. > + > +Wunused-result > +Rust Var(warn_unused_result) Init(1) Warning > +Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value. > + > +frust-crate= > +Rust Joined RejectNegative > +-frust-crate=<name> Set the crate name for the compilation > + > +frust-debug > +Rust Var(flag_rust_debug) > +Dump various Rust front end internals. > + > +frust-dump- > +Rust Joined RejectNegative > +-frust-dump-<type> Dump Rust frontend internal information. > + > +frust-max-recursion-depth= > +Rust RejectNegative Type(int) Var(rust_max_recursion_depth) Init(64) > +-frust-max-recursion-depth=integer > + > +frust-mangling= > +Rust Joined RejectNegative Enum(frust_mangling) Var(flag_rust_mangling) > +-frust-mangling=[legacy|v0] Choose which version to use for name mangling > + > +Enum > +Name(frust_mangling) Type(int) UnknownError(unknown rust mangling option %qs) > + > +EnumValue > +Enum(frust_mangling) String(legacy) Value(0) > + > +EnumValue > +Enum(frust_mangling) String(v0) Value(1) > + > +frust-cfg= > +Rust Joined RejectNegative > +-frust-cfg=<name> Set a config expansion option > + > +frust-edition= > +Rust Joined RejectNegative Enum(frust_edition) Var(flag_rust_edition) > +-frust-edition=[2015|2018|2021] Choose which edition to use when compiling rust code > + > +Enum > +Name(frust_edition) Type(int) UnknownError(unknown rust edition %qs) > + > +EnumValue > +Enum(frust_edition) String(2015) Value(0) > + > +EnumValue > +Enum(frust_edition) String(2018) Value(1) > + > +EnumValue > +Enum(frust_edition) String(2021) Value(2) > + > +frust-embed-metadata > +Rust Var(flag_rust_embed_metadata) > +Flag to enable embeding metadata directly into object files > + > +frust-metadata-output= > +Rust Joined RejectNegative > +-frust-metadata-output=<path.rox> Path to output crate metadata > + > +o > +Rust Joined Separate > +; Documented in common.opt > + > +; This comment is to ensure we retain the blank line above. > -- > 2.25.1 >
Hi! On 2022-09-14T15:39:47+0200, Richard Biener via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > On Wed, Aug 24, 2022 at 2:13 PM <herron.philip@googlemail.com> wrote: >> >> From: Philip Herron <philip.herron@embecosm.com> >> >> We have some rust specific langugage options note -fwrapv is enabled by >> default in the code. We are trying to respect options such as >> -Wunused-result which we get by porting over c++ no-discard for rust's >> must-use attribute, so we have enabled these by default directly here. > > LGTM Actually, NACK. ;-) See <https://gcc.gnu.org/PR105914> "gccrs setting warn_unused_variable breaks thousands of non-Rust tests". The 'Init(1)' in 'gcc/rust/lang.opt' are in conflict with any (default) 'Init(0)' in other '*.opt' files -- remember that all '*.opt' files are processed together by GCC's "options machinery", and thus 'gcc/rust/lang.opt' may (and here, does) affect non-Rust front end code. I do have a patch series adding a 'LangInit(@var{language}, @var{value})' option property, and patches to use this in a lot of places (here and in other front ends' '*.opt' files), where currently we implement such logic in '*.cc' files; '[...]_init_options_struct' functions via 'LANG_HOOKS_INIT_OPTIONS_STRUCT' (those then largely become empty and may be removed). I assume this idea to be uncontroversial; I "just" need to get it polished and submitted... Grüße Thomas >> gcc/rust/lang.opt | 118 ++++++++++++++++++++++++++++++++++++++++++++++ >> 1 file changed, 118 insertions(+) >> create mode 100644 gcc/rust/lang.opt >> >> diff --git a/gcc/rust/lang.opt b/gcc/rust/lang.opt >> new file mode 100644 >> index 00000000000..1f6855ede1d >> --- /dev/null >> +++ b/gcc/rust/lang.opt >> @@ -0,0 +1,118 @@ >> +; Options for the Rust front end. >> +; Copyright (C) 2003-2022 Free Software Foundation, Inc. >> +; >> +; This file is part of GCC. >> +; >> +; GCC is free software; you can redistribute it and/or modify it under >> +; the terms of the GNU General Public License as published by the Free >> +; Software Foundation; either version 3, or (at your option) any later >> +; version. >> +; >> +; GCC is distributed in the hope that it will be useful, but WITHOUT ANY >> +; WARRANTY; without even the implied warranty of MERCHANTABILITY or >> +; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License >> +; for more details. >> +; >> +; You should have received a copy of the GNU General Public License >> +; along with GCC; see the file COPYING3. If not see >> +; <http://www.gnu.org/licenses/>. >> + >> +; See the GCC internals manual for a description of this file's format. >> + >> +; Please try to keep this file in ASCII collating order. >> + >> +; Describes command-line options used by this frontend >> + >> +Language >> +Rust >> + >> +I >> +Rust Joined Separate >> +; Documented in c.opt >> + >> +L >> +Rust Joined Separate >> +; Not documented >> + >> +Wall >> +Rust >> +; Documented in c.opt >> + >> +Wunused-variable >> +Rust Var(warn_unused_variable) Init(1) Warning >> +; documented in common.opt >> + >> +Wunused-const-variable >> +Rust Warning Alias(Wunused-const-variable=, 2, 0) >> +Warn when a const variable is unused. >> + >> +Wunused-const-variable= >> +Rust Joined RejectNegative UInteger Var(warn_unused_const_variable) Init(1) Warning LangEnabledBy(Rust,Wunused-variable, 1, 0) IntegerRange(0, 2) >> +Warn when a const variable is unused. >> + >> +Wunused-result >> +Rust Var(warn_unused_result) Init(1) Warning >> +Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value. >> + >> +frust-crate= >> +Rust Joined RejectNegative >> +-frust-crate=<name> Set the crate name for the compilation >> + >> +frust-debug >> +Rust Var(flag_rust_debug) >> +Dump various Rust front end internals. >> + >> +frust-dump- >> +Rust Joined RejectNegative >> +-frust-dump-<type> Dump Rust frontend internal information. >> + >> +frust-max-recursion-depth= >> +Rust RejectNegative Type(int) Var(rust_max_recursion_depth) Init(64) >> +-frust-max-recursion-depth=integer >> + >> +frust-mangling= >> +Rust Joined RejectNegative Enum(frust_mangling) Var(flag_rust_mangling) >> +-frust-mangling=[legacy|v0] Choose which version to use for name mangling >> + >> +Enum >> +Name(frust_mangling) Type(int) UnknownError(unknown rust mangling option %qs) >> + >> +EnumValue >> +Enum(frust_mangling) String(legacy) Value(0) >> + >> +EnumValue >> +Enum(frust_mangling) String(v0) Value(1) >> + >> +frust-cfg= >> +Rust Joined RejectNegative >> +-frust-cfg=<name> Set a config expansion option >> + >> +frust-edition= >> +Rust Joined RejectNegative Enum(frust_edition) Var(flag_rust_edition) >> +-frust-edition=[2015|2018|2021] Choose which edition to use when compiling rust code >> + >> +Enum >> +Name(frust_edition) Type(int) UnknownError(unknown rust edition %qs) >> + >> +EnumValue >> +Enum(frust_edition) String(2015) Value(0) >> + >> +EnumValue >> +Enum(frust_edition) String(2018) Value(1) >> + >> +EnumValue >> +Enum(frust_edition) String(2021) Value(2) >> + >> +frust-embed-metadata >> +Rust Var(flag_rust_embed_metadata) >> +Flag to enable embeding metadata directly into object files >> + >> +frust-metadata-output= >> +Rust Joined RejectNegative >> +-frust-metadata-output=<path.rox> Path to output crate metadata >> + >> +o >> +Rust Joined Separate >> +; Documented in common.opt >> + >> +; This comment is to ensure we retain the blank line above. >> -- >> 2.25.1 >> ----------------- Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201, 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer: Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München; Registergericht München, HRB 106955
On Wed, Sep 14, 2022 at 6:20 PM Thomas Schwinge <thomas@codesourcery.com> wrote: > > Hi! > > On 2022-09-14T15:39:47+0200, Richard Biener via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > > On Wed, Aug 24, 2022 at 2:13 PM <herron.philip@googlemail.com> wrote: > >> > >> From: Philip Herron <philip.herron@embecosm.com> > >> > >> We have some rust specific langugage options note -fwrapv is enabled by > >> default in the code. We are trying to respect options such as > >> -Wunused-result which we get by porting over c++ no-discard for rust's > >> must-use attribute, so we have enabled these by default directly here. > > > > LGTM > > Actually, NACK. ;-) > > See <https://gcc.gnu.org/PR105914> > "gccrs setting warn_unused_variable breaks thousands of non-Rust tests". > The 'Init(1)' in 'gcc/rust/lang.opt' are in conflict with any (default) > 'Init(0)' in other '*.opt' files -- remember that all '*.opt' files are > processed together by GCC's "options machinery", and thus > 'gcc/rust/lang.opt' may (and here, does) affect non-Rust front end code. Ah, I wondered about the duplicates adding to the list of supported FEs, I guess that the awk script should check for obvious mismatches in other settings? > I do have a patch series adding a 'LangInit(@var{language}, @var{value})' > option property, and patches to use this in a lot of places (here and in > other front ends' '*.opt' files), where currently we implement such logic > in '*.cc' files; '[...]_init_options_struct' functions via > 'LANG_HOOKS_INIT_OPTIONS_STRUCT' (those then largely become empty and may > be removed). I assume this idea to be uncontroversial; I "just" need to > get it polished and submitted... > > > Grüße > Thomas > > > >> gcc/rust/lang.opt | 118 ++++++++++++++++++++++++++++++++++++++++++++++ > >> 1 file changed, 118 insertions(+) > >> create mode 100644 gcc/rust/lang.opt > >> > >> diff --git a/gcc/rust/lang.opt b/gcc/rust/lang.opt > >> new file mode 100644 > >> index 00000000000..1f6855ede1d > >> --- /dev/null > >> +++ b/gcc/rust/lang.opt > >> @@ -0,0 +1,118 @@ > >> +; Options for the Rust front end. > >> +; Copyright (C) 2003-2022 Free Software Foundation, Inc. > >> +; > >> +; This file is part of GCC. > >> +; > >> +; GCC is free software; you can redistribute it and/or modify it under > >> +; the terms of the GNU General Public License as published by the Free > >> +; Software Foundation; either version 3, or (at your option) any later > >> +; version. > >> +; > >> +; GCC is distributed in the hope that it will be useful, but WITHOUT ANY > >> +; WARRANTY; without even the implied warranty of MERCHANTABILITY or > >> +; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License > >> +; for more details. > >> +; > >> +; You should have received a copy of the GNU General Public License > >> +; along with GCC; see the file COPYING3. If not see > >> +; <http://www.gnu.org/licenses/>. > >> + > >> +; See the GCC internals manual for a description of this file's format. > >> + > >> +; Please try to keep this file in ASCII collating order. > >> + > >> +; Describes command-line options used by this frontend > >> + > >> +Language > >> +Rust > >> + > >> +I > >> +Rust Joined Separate > >> +; Documented in c.opt > >> + > >> +L > >> +Rust Joined Separate > >> +; Not documented > >> + > >> +Wall > >> +Rust > >> +; Documented in c.opt > >> + > >> +Wunused-variable > >> +Rust Var(warn_unused_variable) Init(1) Warning > >> +; documented in common.opt > >> + > >> +Wunused-const-variable > >> +Rust Warning Alias(Wunused-const-variable=, 2, 0) > >> +Warn when a const variable is unused. > >> + > >> +Wunused-const-variable= > >> +Rust Joined RejectNegative UInteger Var(warn_unused_const_variable) Init(1) Warning LangEnabledBy(Rust,Wunused-variable, 1, 0) IntegerRange(0, 2) > >> +Warn when a const variable is unused. > >> + > >> +Wunused-result > >> +Rust Var(warn_unused_result) Init(1) Warning > >> +Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value. > >> + > >> +frust-crate= > >> +Rust Joined RejectNegative > >> +-frust-crate=<name> Set the crate name for the compilation > >> + > >> +frust-debug > >> +Rust Var(flag_rust_debug) > >> +Dump various Rust front end internals. > >> + > >> +frust-dump- > >> +Rust Joined RejectNegative > >> +-frust-dump-<type> Dump Rust frontend internal information. > >> + > >> +frust-max-recursion-depth= > >> +Rust RejectNegative Type(int) Var(rust_max_recursion_depth) Init(64) > >> +-frust-max-recursion-depth=integer > >> + > >> +frust-mangling= > >> +Rust Joined RejectNegative Enum(frust_mangling) Var(flag_rust_mangling) > >> +-frust-mangling=[legacy|v0] Choose which version to use for name mangling > >> + > >> +Enum > >> +Name(frust_mangling) Type(int) UnknownError(unknown rust mangling option %qs) > >> + > >> +EnumValue > >> +Enum(frust_mangling) String(legacy) Value(0) > >> + > >> +EnumValue > >> +Enum(frust_mangling) String(v0) Value(1) > >> + > >> +frust-cfg= > >> +Rust Joined RejectNegative > >> +-frust-cfg=<name> Set a config expansion option > >> + > >> +frust-edition= > >> +Rust Joined RejectNegative Enum(frust_edition) Var(flag_rust_edition) > >> +-frust-edition=[2015|2018|2021] Choose which edition to use when compiling rust code > >> + > >> +Enum > >> +Name(frust_edition) Type(int) UnknownError(unknown rust edition %qs) > >> + > >> +EnumValue > >> +Enum(frust_edition) String(2015) Value(0) > >> + > >> +EnumValue > >> +Enum(frust_edition) String(2018) Value(1) > >> + > >> +EnumValue > >> +Enum(frust_edition) String(2021) Value(2) > >> + > >> +frust-embed-metadata > >> +Rust Var(flag_rust_embed_metadata) > >> +Flag to enable embeding metadata directly into object files > >> + > >> +frust-metadata-output= > >> +Rust Joined RejectNegative > >> +-frust-metadata-output=<path.rox> Path to output crate metadata > >> + > >> +o > >> +Rust Joined Separate > >> +; Documented in common.opt > >> + > >> +; This comment is to ensure we retain the blank line above. > >> -- > >> 2.25.1 > >> > ----------------- > Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201, 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer: Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München; Registergericht München, HRB 106955
diff --git a/gcc/rust/lang.opt b/gcc/rust/lang.opt new file mode 100644 index 00000000000..1f6855ede1d --- /dev/null +++ b/gcc/rust/lang.opt @@ -0,0 +1,118 @@ +; Options for the Rust front end. +; Copyright (C) 2003-2022 Free Software Foundation, Inc. +; +; This file is part of GCC. +; +; GCC is free software; you can redistribute it and/or modify it under +; the terms of the GNU General Public License as published by the Free +; Software Foundation; either version 3, or (at your option) any later +; version. +; +; GCC is distributed in the hope that it will be useful, but WITHOUT ANY +; WARRANTY; without even the implied warranty of MERCHANTABILITY or +; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +; for more details. +; +; You should have received a copy of the GNU General Public License +; along with GCC; see the file COPYING3. If not see +; <http://www.gnu.org/licenses/>. + +; See the GCC internals manual for a description of this file's format. + +; Please try to keep this file in ASCII collating order. + +; Describes command-line options used by this frontend + +Language +Rust + +I +Rust Joined Separate +; Documented in c.opt + +L +Rust Joined Separate +; Not documented + +Wall +Rust +; Documented in c.opt + +Wunused-variable +Rust Var(warn_unused_variable) Init(1) Warning +; documented in common.opt + +Wunused-const-variable +Rust Warning Alias(Wunused-const-variable=, 2, 0) +Warn when a const variable is unused. + +Wunused-const-variable= +Rust Joined RejectNegative UInteger Var(warn_unused_const_variable) Init(1) Warning LangEnabledBy(Rust,Wunused-variable, 1, 0) IntegerRange(0, 2) +Warn when a const variable is unused. + +Wunused-result +Rust Var(warn_unused_result) Init(1) Warning +Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value. + +frust-crate= +Rust Joined RejectNegative +-frust-crate=<name> Set the crate name for the compilation + +frust-debug +Rust Var(flag_rust_debug) +Dump various Rust front end internals. + +frust-dump- +Rust Joined RejectNegative +-frust-dump-<type> Dump Rust frontend internal information. + +frust-max-recursion-depth= +Rust RejectNegative Type(int) Var(rust_max_recursion_depth) Init(64) +-frust-max-recursion-depth=integer + +frust-mangling= +Rust Joined RejectNegative Enum(frust_mangling) Var(flag_rust_mangling) +-frust-mangling=[legacy|v0] Choose which version to use for name mangling + +Enum +Name(frust_mangling) Type(int) UnknownError(unknown rust mangling option %qs) + +EnumValue +Enum(frust_mangling) String(legacy) Value(0) + +EnumValue +Enum(frust_mangling) String(v0) Value(1) + +frust-cfg= +Rust Joined RejectNegative +-frust-cfg=<name> Set a config expansion option + +frust-edition= +Rust Joined RejectNegative Enum(frust_edition) Var(flag_rust_edition) +-frust-edition=[2015|2018|2021] Choose which edition to use when compiling rust code + +Enum +Name(frust_edition) Type(int) UnknownError(unknown rust edition %qs) + +EnumValue +Enum(frust_edition) String(2015) Value(0) + +EnumValue +Enum(frust_edition) String(2018) Value(1) + +EnumValue +Enum(frust_edition) String(2021) Value(2) + +frust-embed-metadata +Rust Var(flag_rust_embed_metadata) +Flag to enable embeding metadata directly into object files + +frust-metadata-output= +Rust Joined RejectNegative +-frust-metadata-output=<path.rox> Path to output crate metadata + +o +Rust Joined Separate +; Documented in common.opt + +; This comment is to ensure we retain the blank line above.