Re: gcc 10.0.1 20200506 build fails to compile linux kernel

2020-05-06 Thread Martin Liška
On 5/6/20 6:44 AM, Tetsuji Rai via Gcc wrote: I wonder how Fedora project built its own kernel.  I can't build custom kernel with it. What's wrong with 10.1-RC or how can I report my problem? Hi. Is it possible that you reached https://lore.kernel.org/lkml/20200417190607.GY2424@tucnak/T/ ?

Re: Automatically generated ChangeLog files - script

2020-05-06 Thread Mark Eggleston
On 04/05/2020 20:28, H.J. Lu via Gcc wrote: On Mon, May 4, 2020 at 12:24 PM Tobias Burnus wrote: On 5/4/20 9:05 PM, Jakub Jelinek via Gcc wrote: On Mon, May 04, 2020 at 08:56:16PM +0200, Martin Liška wrote: What's missing right now is how will we declare a Backport format. Can we just use s

Question about alias or points-to analysis

2020-05-06 Thread Erick Ochoa
Hi, I am trying to find out how to use the alias and/or points-to analysis in GCC. Ideally, I would like to find a function that given an allocation site, the return value is a set of pointers which may point to memory allocated from that allocation site. For example: int main(int argc, cha

Re: gcc 10.0.1 20200506 build fails to compile linux kernel

2020-05-06 Thread Tetsuji Rai via Gcc
Hi Martin, Thank you for your reply! Spot on! It was my kernel config problem associated with stronger stack protection of gcc-10, not a gcc problem.  But I can't find this in kernel.org bugzilla or bugzilla.redhat.com (searched with "gcc 10" and "gcc-10".) It happens not in qemu or any VM, but

Re: [libgomp] Ask for help on an improvement for synchronization overhead

2020-05-06 Thread Adhemerval Zanella via Gcc
On 30/04/2020 18:12, Jakub Jelinek wrote: > On Thu, Apr 30, 2020 at 05:37:26PM -0300, Adhemerval Zanella via Gcc wrote: >> Hi all, I would like to check if someone could help me figure out >> an issue I am chasing on a libgomp patch intended to partially >> address the issue described at BZ#7978

Re: Question about alias or points-to analysis

2020-05-06 Thread Richard Biener via Gcc
On Wed, May 6, 2020 at 12:26 PM Erick Ochoa wrote: > > Hi, > > I am trying to find out how to use the alias and/or points-to analysis > in GCC. Ideally, I would like to find a function that given an > allocation site, the return value is a set of pointers which may point > to memory allocated from

Re: gcc 10.0.1 20200506 build fails to compile linux kernel

2020-05-06 Thread Martin Liška
On 5/6/20 2:01 PM, Tetsuji Rai wrote: Hi Martin, Thank you for your reply! Spot on! It was my kernel config problem associated with stronger stack protection of gcc-10, not a gcc problem.  But I can't find this in kernel.org bugzilla or bugzilla.redhat.com (searched with "gcc 10" and "gcc-10".

Re: Question about alias or points-to analysis

2020-05-06 Thread Erick Ochoa
On 06/05/2020 14:25, Richard Biener wrote: On Wed, May 6, 2020 at 12:26 PM Erick Ochoa wrote: Hi, I am trying to find out how to use the alias and/or points-to analysis in GCC. Ideally, I would like to find a function that given an allocation site, the return value is a set of pointers whi

Stability of pipermail ml archive URLs

2020-05-06 Thread Jakub Jelinek via Gcc
Hi! Last week after sending status report mails to gcc mailing list, I've opened the web archive and copied the URLs of those status reports https://gcc.gnu.org/pipermail/gcc/2020-April/232267.html https://gcc.gnu.org/pipermail/gcc/2020-April/232268.html and checked them into gcc-wwwdocs git c3162

Re: Stability of pipermail ml archive URLs

2020-05-06 Thread Frank Ch. Eigler via Gcc
Hi - > https://gcc.gnu.org/pipermail/gcc/2020-February/232205.html > Looking around, the last two months of gcc now have very small > numbers, but e.g. on gcc-patches the mails have very high numbers like > 545238.html. Can pipermail provide stable URLs at all? We really > need those, we referen

Re: Stability of pipermail ml archive URLs

2020-05-06 Thread Arseny Solokha
Hi, >> https://gcc.gnu.org/pipermail/gcc/2020-February/232205.html >> Looking around, the last two months of gcc now have very small >> numbers, but e.g. on gcc-patches the mails have very high numbers like >> 545238.html. Can pipermail provide stable URLs at all? We really >> need those, we re

Re: Stability of pipermail ml archive URLs

2020-05-06 Thread Arseny Solokha
Hi, >> https://gcc.gnu.org/pipermail/gcc/2020-February/232205.html >> Looking around, the last two months of gcc now have very small >> numbers, but e.g. on gcc-patches the mails have very high numbers like >> 545238.html. Can pipermail provide stable URLs at all? We really >> need those, we re

Re: Stability of pipermail ml archive URLs

2020-05-06 Thread Christopher Faylor
On Wed, May 06, 2020 at 04:11:39PM +0200, Jakub Jelinek wrote: >Hi! > >Last week after sending status report mails to gcc mailing list, >I've opened the web archive and copied the URLs of those status reports >https://gcc.gnu.org/pipermail/gcc/2020-April/232267.html >https://gcc.gnu.org/pipermail/g

Re: Stability of pipermail ml archive URLs

2020-05-06 Thread Christopher Faylor
On Wed, May 06, 2020 at 09:54:06PM +0700, Arseny Solokha wrote: >may I also chime in with a related (to some extent), even though a separate >issue? It seems URL rewriting rules designed to replace old-style > > https://gcc.gnu.org/ml//current > >URLs pointing to monthly digests to current ones >

Re: Question about alias or points-to analysis

2020-05-06 Thread Richard Biener via Gcc
On Wed, May 6, 2020 at 3:04 PM Erick Ochoa wrote: > > > > On 06/05/2020 14:25, Richard Biener wrote: > > On Wed, May 6, 2020 at 12:26 PM Erick Ochoa > > wrote: > >> > >> Hi, > >> > >> I am trying to find out how to use the alias and/or points-to analysis > >> in GCC. Ideally, I would like to find

Re: [Inline assembly] thought on the memory

2020-05-06 Thread Segher Boessenkool
Hi! On Thu, Apr 30, 2020 at 02:48:18PM +0200, FRÉDÉRIC RECOULES wrote: > I am looking for some clarification about how are working the memory > operands, especially when the constraint allows memory only (eg. "m"). > Please note that in a lesser extent, I know (by looking the gcc sources) how >

Re: Question about alias or points-to analysis

2020-05-06 Thread Erick Ochoa
On 06/05/2020 18:40, Richard Biener wrote: On Wed, May 6, 2020 at 3:04 PM Erick Ochoa wrote: On 06/05/2020 14:25, Richard Biener wrote: On Wed, May 6, 2020 at 12:26 PM Erick Ochoa wrote: Hi, I am trying to find out how to use the alias and/or points-to analysis in GCC. Ideally, I wou

Multilibs in stage-1

2020-05-06 Thread Uros Bizjak via Gcc
Hello! I wonder, if the build process really needs to build all multilibs in stage-1 bootstrap build. IIRC, stage-1 uses system compiler to build stage-1 gcc, so there is no need for multilibs, apart from library that will be used by stage-1 gcc during compilation of stage-2 compiler. Uros.

Re: [libgomp] Ask for help on an improvement for synchronization overhead

2020-05-06 Thread Ray Kim via Gcc
On Wed, 2020-05-06 at 09:08 -0300, Adhemerval Zanella via Gcc wrote: > > On 30/04/2020 18:12, Jakub Jelinek wrote: > > On Thu, Apr 30, 2020 at 05:37:26PM -0300, Adhemerval Zanella via Gcc wrote: > > > Hi all, I would like to check if someone could help me figure out > > > an issue I am chasing on

Re: Multilibs in stage-1

2020-05-06 Thread Richard Biener via Gcc
On May 6, 2020 11:15:08 PM GMT+02:00, Uros Bizjak via Gcc wrote: >Hello! > >I wonder, if the build process really needs to build all multilibs in >stage-1 bootstrap build. IIRC, stage-1 uses system compiler to build >stage-1 gcc, so there is no need for multilibs, apart from library >that will be

Re: Multilibs in stage-1

2020-05-06 Thread Uros Bizjak via Gcc
On Thu, May 7, 2020 at 8:16 AM Richard Biener wrote: > > On May 6, 2020 11:15:08 PM GMT+02:00, Uros Bizjak via Gcc > wrote: > >Hello! > > > >I wonder, if the build process really needs to build all multilibs in > >stage-1 bootstrap build. IIRC, stage-1 uses system compiler to build > >stage-1 gc