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Bug#880962: mips*: "gcc --help=target --help=optimizers" busyloops forever



Hi,

On 06/11/17 12:11, Adrian Bunk wrote:
> Package: gcc-7
> Version: 7.2.0-12
> Severity: serious
> Control: affects -1 src:amanda
> 
> https://buildd.debian.org/status/package.php?p=amanda&suite=sid
> 
> ...
> checking for gcc flag -fstrict-aliasing... 
> E: Build killed with signal TERM after 360 minutes of inactivity
> 
> 
> Testcase:
> 
> (sid_mips-dchroot)bunk@minkus:~$ gcc --help=target --help=optimizers  

Bisected to this commit, but I don't know how far that helps us.
Probably some mips specific option blows up.

> 4972d77dcbe0c4186dabc67a0edb7f3f2df4e646 is the first bad commit
> commit 4972d77dcbe0c4186dabc67a0edb7f3f2df4e646
> Author: marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4>
> Date:   Fri Sep 15 08:18:34 2017 +0000
> 
>     Subject: Backport r251400
>     
>     2017-09-15  Martin Liska  <mliska@suse.cz>
>     
>             Backport from mainline
>             2017-08-29  Martin Liska  <mliska@suse.cz>
>     
>             PR other/39851
>             * gcc.c (driver_handle_option): Add new argument.
>             * opts-common.c (handle_option): Pass
>             target_option_override_hook.
>             * opts-global.c (lang_handle_option): Add new option.
>             (set_default_handlers):  Add new argument.
>             (decode_options): Likewise.
>             * opts.c (target_handle_option): Likewise.
>             (common_handle_option): Call target_option_override_hook.
>             * opts.h (struct cl_option_handler_func): Add hook for
>             target option override.
>             (struct cl_option_handlers): Likewise.
>             (set_default_handlers): Add new argument.
>             (decode_options): Likewise.
>             (common_handle_option): Likewise.
>             (target_handle_option): Likewise.
>             * toplev.c (toplev::main): Pass targetm.target_option.override
>             hook.
>     2017-09-15  Martin Liska  <mliska@suse.cz>
>     
>             Backport from mainline
>             2017-08-29  Martin Liska  <mliska@suse.cz>
>     
>             PR other/39851
>             * c-common.c (parse_optimize_options): Add argument to function
>             call.
>             * c-pragma.c (handle_pragma_diagnostic): Likewise.
>     
>     
>     git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@252787 138bc75d-0d04-0410-961f-82ee72b054a4
> 
> :040000 040000 435ac2ed3f121183790fa89d3120400725e3c6a0 424643290a7f6c41e0abe05fb6c596113ed6e611 M	gcc

James

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