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bug#24720: Performance impact of -no-pie
From: |
Alex |
Subject: |
bug#24720: Performance impact of -no-pie |
Date: |
Tue, 18 Oct 2016 22:41:02 -0600 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) |
Glenn Morris <rgm@gnu.org> writes:
> All that adding -no-pie does is restore the old default behaviour.
> It therefore makes no sense for it to cause a slowdown.
That makes sense.
> I'm going to guess that when you set it via CFLAGS, you lost the -O2
> that is otherwise part of the default CFLAGS.
That's indeed the case. I thought that specifying it when calling
./configure would have just added to the default CFLAGS instead of
overwriting it. Sorry for the false report.
> M-x report-emacs-bug includes information that would probably have
> made this obvious from the outset. Check the setting of CFLAGS in
> src/Makefile.
No, without specifying any CFLAGS manually, report-emacs-bug doesn't
mention any configuration details. This appears to be because
system-configuration-options is empty in that case.
Only when manually specifying flags does report-emacs-bug show the
configuration option section.
I can see what the CFLAGS are in src/Makefile, thanks. Though it might
be nice if I could see these at the Elisp level even when they're the
default.
- bug#24720: Performance impact of -no-pie, Paul Eggert, 2016/10/17
- Message not available
- bug#24720: Performance impact of -no-pie, Paul Eggert, 2016/10/17
- bug#24720: Performance impact of -no-pie, Alex, 2016/10/18
- bug#24720: Performance impact of -no-pie, Glenn Morris, 2016/10/18
- bug#24720: Performance impact of -no-pie, Paul Eggert, 2016/10/18
- bug#24720: Performance impact of -no-pie,
Alex <=
- bug#24720: Performance impact of -no-pie, Eli Zaretskii, 2016/10/19
- bug#24720: Performance impact of -no-pie, Alex, 2016/10/19
- bug#24720: Performance impact of -no-pie, Eli Zaretskii, 2016/10/20
- bug#24720: Performance impact of -no-pie, Alex, 2016/10/20
- bug#24720: Performance impact of -no-pie, Alex, 2016/10/26
bug#24720: Performance impact of -no-pie, Cesar Quiroz, 2016/10/18