[Scons-users] 回复： 回复： 回复： 回复： 回复： Ninja compilation fails after using include path file instead of "-I" option

[Daniel Moody]

Hello, that PR is meant to support shared @file with ninja, not intended
for any improvements to TEMPFILE. Please test without TEMPFILE.

On Tue, Apr 12, 2022 at 10:52 AM liruncong2018 via Scons-users <
scons-users at scons.org> wrote:

> Hi
> I tested "https://github.com/SCons/scons/pull/4133", after enabling
> ningja, except for the link failure, .c/.cpp/.S are successfully compiled
> into .o, the total time is 6:48 .
> This time is much greater than the previous time of 3:45 when ninja was
> not enabled and the option file was shared using @file.
> After using TEMPFILE instead of @file, the compilation time is basically
> doubled whether ninja is enabled or not.
> The TEMPFILE function should be improved to use shared files to prevent
> the creation of a large number of temporary files.
>
> ------------------ 原始邮件 ------------------
> *发件人:* "SCons users mailing list" <dmoody256 at gmail.com>;
> *发送时间:* 2022年4月11日(星期一) 晚上11:43
> *收件人:* "SCons users mailing list"<scons-users at scons.org>;
> *主题:* Re: [Scons-users] 回复： 回复： 回复： 回复： Ninja compilation fails after
> using include path file instead of "-I" option
>
> I have a potential fix to the ninja tool so that it can decide to use
> response files or not. This should allow you to use your own shared
> response file.
>
> https://github.com/SCons/scons/pull/4133
>
> On Mon, Apr 11, 2022 at 10:01 AM Mats Wichmann <mats at wichmann.us> wrote:
>
>>
>> On 4/11/22 08:57, liruncong2018 via Scons-users wrote:
>> > Hi,
>> > Even using msys2 does not solve all problems. The 32K limit solves my
>> > compilation problems (.cpp -> .o) but not linking (.o -> target) because
>> > the link command line has around 137K (about 2500 .o files). So
>> > compilers such as gcc/clang/armclang will support "@file".
>> > Currently, scons needs to set up Depends when using @file. This
>> > dependency suggestion is still directly supported by scons, and users do
>> > not need to write dependencies. It should also be supported when ninja
>> > is enabled.
>> > When LINKCOM uses "TEMPFILE", I get a link failure because armlink.exe
>> > checks if --cpu is specified on the command line, so it is not
>> > reasonable for "TEMPFILE" to put all options to a temporary file.
>>
>> Right... thus my suggestion - well, let's call it "musing" rather than
>> "suggestion" because this might not work at all:
>>
>> > For ninja it currently looks like this:
>> >
>> > env["LINKCOM"] = '${TEMPFILE("$LINK $LINKFLAGS /OUT:$TARGET.windows
>> > $_LIBDIRFLAGS $_LIBFLAGS $_PDB $SOURCES.windows", "$LINKCOMSTR")}'
>> >
>> > env["SHLINKCOM"] = '${TEMPFILE("$SHLINK $SHLINKFLAGS $_SHLINK_TARGETS
>> > $_LIBDIRFLAGS $_LIBFLAGS $_PDB $_SHLINK_SOURCES", "$SHLINKCOMSTR")}'
>> >
>> > So I'm curious if moving $LINK $LINKFLAGS to the left of ${TEMPFILE
>> > would help...
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