From: Tom Tromey <tom@tromey.com>
To: Svante Signell <svante.signell@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>,
Tom Tromey <tom@tromey.com>, Simon Marchi <simark@simark.ca>,
gdb-patches@sourceware.org
Subject: Re: [PATCH] Please define thread_info as struct thread_info (and other stuff)
Date: Sun, 16 Dec 2018 23:10:00 -0000 [thread overview]
Message-ID: <87d0q13w6b.fsf@tromey.com> (raw)
In-Reply-To: <000db1d81a0c415190b6648222ed29db7f927df9.camel@gmail.com> (Svante Signell's message of "Sun, 16 Dec 2018 20:08:30 +0100")
>>>>> "Svante" == Svante Signell <svante.signell@gmail.com> writes:
>> Try adding a forward declaration of struct thead_info. Note that
>> config/i386/nm-i386gnu.h includes "regcache.h", making it unique among
>> the nm.h files.
Svante> From what I've leraned forward declarations is bad coding, an should be avoided
Svante> as much as possible. Right or wrong?
Opinions vary -- I think the Google style has a rule against it? -- but
gdb generally does not avoid it.
Svante> Furthermore, not defining thread_info as struct everywhere is in my opinion very
Svante> lazy coding.
I disagree here, C++ provides the typedef, there's nothing really wrong
with using it.
Svante> Another issue is to compile C-code (and C++-code) in *.c files.
Svante> Please rename these to *.cpp (and eventually the header files to *.hpp)! As it
Svante> is now it is very confusing.
I think this was discussed When we made this switch, and the conclusion
was that a mass rename would be worse.
Svante> Finally, I've found the problem (but no workaround yet): thread_info is an RPC
Svante> on GNU/Hurs, and including mach.h in gdb/config/i386/nm-i386gnu.h:#include
Svante> <mach.h> further includes <mach/mach_interface.h> which has the conflicting name
Svante> of that RPC:
Svante> kern_return_t thread_info
Svante> (
Typical answers for this kind of thing are either to segregate the use
of the system header somehow, or maybe namespacing or some other kind of
renaming. I haven't looked into the details much in this case I'm
afraid.
Tom
next prev parent reply other threads:[~2018-12-16 23:10 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-15 19:36 Svante Signell
2018-12-15 22:48 ` Tom Tromey
2018-12-15 23:01 ` Svante Signell
2018-12-16 4:31 ` Simon Marchi
2018-12-16 5:14 ` Svante Signell
2018-12-16 6:02 ` Simon Marchi
2018-12-16 16:22 ` Tom Tromey
2018-12-16 9:20 ` Andreas Schwab
2018-12-16 19:08 ` Svante Signell
2018-12-16 23:10 ` Tom Tromey [this message]
2018-12-17 20:51 ` Svante Signell
2018-12-17 21:41 ` John Baldwin
2019-02-14 15:16 ` Thomas Schwinge
2018-12-20 13:31 ` Svante Signell
2018-12-20 22:34 ` Tom Tromey
2018-12-20 23:26 ` Simon Marchi
2018-12-21 18:17 ` John Baldwin
2018-12-24 21:51 ` Tom Tromey
2019-01-12 18:37 ` Svante Signell
2019-01-12 20:50 ` Tom Tromey
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