https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
Andrew Pinski changed:
What|Removed |Added
Target Milestone|--- |13.0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #16 from Kewen Lin ---
(In reply to Michael Matz from comment #15)
> Umm. I just noticed this one as we now try to implement userspace live
> patching
> for ppc64le. The point of the "before" NOPs is (and always was) that they
> are
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
Michael Matz changed:
What|Removed |Added
CC||matz at gcc dot gnu.org
--- Comment #15 f
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
Kewen Lin changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
Kewen Lin changed:
What|Removed |Added
CC||giuliano.belinassi at gmail
dot co
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #12 from CVS Commits ---
The master branch has been updated by Kewen Lin :
https://gcc.gnu.org/g:c23b5006d3ffeda1a9edf5fd817765a6da3696ca
commit r13-2984-gc23b5006d3ffeda1a9edf5fd817765a6da3696ca
Author: Kewen Lin
Date: Fri Sep 3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #11 from Kewen Lin ---
Oops, the reference links in #c10 are:
[1] https://gcc.gnu.org/pipermail/gcc-patches/2016-September/458210.html
[2] https://gcc.gnu.org/pipermail/gcc-patches/2016-September/458287.html
[3] https://gcc.gnu.org/p
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #10 from Kewen Lin ---
By searching the history of this feature, I found its initial versions only
proposed to place nops after the function entry, such as: v2[1], then it's
requested to be more generic to handle some "exploited atomi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #9 from Segher Boessenkool ---
(In reply to Alan Modra from comment #8)
> (In reply to Segher Boessenkool from comment #7)
> > '-fpatchable-function-entry=N[,M]'
> > Generate N NOPs right at the beginning of each function, with t
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #8 from Alan Modra ---
(In reply to Segher Boessenkool from comment #7)
> '-fpatchable-function-entry=N[,M]'
> Generate N NOPs right at the beginning of each function, with the
> function entry point before the Mth NOP.
Bad
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #7 from Segher Boessenkool ---
'-fpatchable-function-entry=N[,M]'
Generate N NOPs right at the beginning of each function, with the
function entry point before the Mth NOP.
The nops have to be consecutive.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #6 from Kewen Lin ---
(In reply to Fangrui Song from comment #5)
> * There is a restriction on the number of instructions between the function
> label and the .localentry directive.
> * For -fpatchable-function-entry=N[,M], M nops mus
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
Fangrui Song changed:
What|Removed |Added
CC||i at maskray dot me
--- Comment #5 from F
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #4 from Kewen Lin ---
(In reply to Segher Boessenkool from comment #3)
> Your second option isn't correct: all these nops should be consecutive. Your
> option 1 is fine :-)
Good point! It's lucky that I chose option 1. :)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #3 from Segher Boessenkool ---
Your second option isn't correct: all these nops should be consecutive. Your
option 1 is fine :-)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
--- Comment #2 from Kewen Lin ---
Created attachment 53405
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53405&action=edit
untested patch
With the attached patch, for -fpatchable-function-entry=5,2 it gets:
foo:
.LFB0:
.cfi_start
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
Kewen Lin changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
Bug 99888 depends on bug 98125, which changed state.
Bug 98125 Summary: [11 Regression] New test case g++.dg/pr93195a.C in r11-5656
has excess errors
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98125
What|Removed
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