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From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [RFC PATCH u-boot 00/12] U-Boot LTO (Sandbox + ARM Nokia RX-51)
Date: Thu, 4 Mar 2021 11:17:01 -0500	[thread overview]
Message-ID: <20210304161701.GX1310@bill-the-cat> (raw)
In-Reply-To: <CAHCN7xKFs8i0zh3HHvS9DkHSv-7Wj17ihbRqCjo+35d3+hx28w@mail.gmail.com>

On Thu, Mar 04, 2021 at 09:07:33AM -0600, Adam Ford wrote:
> On Thu, Mar 4, 2021 at 8:58 AM Tom Rini <trini@konsulko.com> wrote:
> >
> > On Thu, Mar 04, 2021 at 07:46:18AM -0600, Adam Ford wrote:
> > > On Thu, Mar 4, 2021 at 4:43 AM Marek Behun <marek.behun@nic.cz> wrote:
> > > >
> > > > On Wed, 3 Mar 2021 16:36:05 -0500
> > > > Tom Rini <trini@konsulko.com> wrote:
> > > >
> > > > > So, as I start testing things locally with two additional changes (1.
> > > > > LTO by default 2. No ffunction/data-sections with LTO) we see:
> > > > > https://gist.github.com/trini/350ab850c42293563228b8d68a1bb89a
> > > > > as the detailed size reduction.  This also shows that with LTO we want
> > > > > to turn off -ffunction-sections/etc as it's not useful now.
> > > >
> > > > Tom, I have pushed another version to github PR to trigger CI, and am
> > > > still working on clang. You can look at the github PR if you want to
> > > > try yourself. I have also added patch that disables
> > > > -ffunction-section/fdata-section on arm.
> > > >
> > > > After I manage to make it all work in CI I will send v2 to mailing list.
> > >
> > > I tested this with the imx6q_logic board.  I only tested the U-Boot
> > > portion, but it appeared to work and it booted the kernel.  The U-Boot
> > > size reduced -7182 bytes (about 3% smaller).
> > >
> > > I haven't been able to successfully boot the OMAP3 boards I have yet.
> > > I'm still looking into this.
> >
> > It boots (and pytest runs) on my Beagleboard xM, fwiw.
> 
> Interesting.  with LTO enabled, the DRAM reports 7.2 GB and hangs.
> Without LTO, U-Boot boots fine.
> 
> LTO:
> OMAP3630/3730-GP ES1.2, CPU-OPP2, L3-200MHz, Max CPU Clock 1 GHz
> Model: LogicPD Zoom DM3730 Torpedo + Wireless Development Kit
> Logic DM37x/OMAP35x reference board + LPDDR/NAND
> DRAM:  7.2 GiB
> <hang>
> 
> Without LTO:
> OMAP3630/3730-GP ES1.2, CPU-OPP2, L3-200MHz, Max CPU Clock 1 GHz
> Model: LogicPD Zoom DM3730 Torpedo + Wireless Development Kit
> Logic DM37x/OMAP35x reference board + LPDDR/NAND
> DRAM:  256 MiB
> NAND:  512 MiB
> MMC:   OMAP SD/MMC: 0
> Loading Environment from NAND... OK
> OMAP die ID: 619e00029ff800000168300f1502501f
> Net:   smc911x-0
> Hit any key to stop autoboot:  0
> OMAP Logic #

I take it back, I had my bbxm disabled in the loop and indeed it doesn't
boot either.  What's odd there is that N900 is omap3.

-- 
Tom
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  parent reply	other threads:[~2021-03-04 16:17 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-03  4:11 [RFC PATCH u-boot 00/12] U-Boot LTO (Sandbox + ARM Nokia RX-51) Marek Behún
2021-03-03  4:12 ` [RFC PATCH u-boot 01/12] build: use thin archives instead of incremental linking Marek Behún
2021-03-04 10:57   ` Bin Meng
2021-03-04 18:17     ` Marek Behun
2021-03-05 13:34       ` Bin Meng
2021-03-05 13:37         ` Tom Rini
2021-03-06 21:20           ` Marek Behun
2021-03-05 15:39         ` Marek Behun
2021-03-03  4:12 ` [RFC PATCH u-boot 02/12] sandbox: errno: avoid conflict with libc's errno Marek Behún
2021-03-05  3:00   ` Bin Meng
2021-03-05 15:37     ` Marek Behun
2021-03-05 16:39       ` Simon Glass
2021-03-05 16:50         ` Marek Behun
2021-03-05 16:58           ` Simon Glass
2021-03-05 17:24             ` Heinrich Schuchardt
2021-03-05 17:24             ` Marek Behun
2021-03-05 19:42               ` Simon Glass
2021-03-05 17:21       ` Heinrich Schuchardt
2021-03-07  3:14         ` Marek Behun
2021-03-12  4:45   ` Simon Glass
2021-03-03  4:12 ` [RFC PATCH u-boot 03/12] linker_lists: declare entries and lists externally visible Marek Behún
2021-03-04 13:47   ` Marek Behun
2021-03-05  3:04   ` Bin Meng
2021-03-05 15:49     ` Marek Behun
2021-03-03  4:12 ` [RFC PATCH u-boot 04/12] efi_loader: fix warning when linking with LTO Marek Behún
2021-03-05  5:50   ` Bin Meng
2021-03-03  4:12 ` [RFC PATCH u-boot 05/12] binman: declare symbols externally visible Marek Behún
2021-03-04  0:37   ` Tom Rini
2021-03-04  1:53     ` Marek Behun
2021-03-03  4:12 ` [RFC PATCH u-boot 06/12] build: support building with Link Time Optimizations Marek Behún
2021-03-05  6:34   ` Bin Meng
2021-03-03  4:12 ` [RFC PATCH u-boot 07/12] arch: sandbox: make LTO available Marek Behún
2021-03-03  4:12 ` [RFC PATCH u-boot 08/12] sandbox: build with LTO Marek Behún
2021-03-03  4:12 ` [RFC PATCH u-boot 09/12] ARM: make gd a function for LTO Marek Behún
2021-03-03  4:12 ` [RFC PATCH u-boot 10/12] string: make memcpy() visible to fix LTO linking errors Marek Behún
2021-03-03  4:12 ` [RFC PATCH u-boot 11/12] arch: ARM: make LTO available Marek Behún
2021-03-03  4:12 ` [RFC PATCH u-boot 12/12] Nokia RX-51: build with LTO Marek Behún
2021-03-03 16:11 ` [RFC PATCH u-boot 00/12] U-Boot LTO (Sandbox + ARM Nokia RX-51) Tom Rini
2021-03-03 16:41   ` Marek Behun
2021-03-03 16:47     ` Tom Rini
2021-03-03 21:36     ` Tom Rini
2021-03-04  0:40       ` Adam Ford
2021-03-04  7:07         ` [PATCH] arm: fix LTO build for some thumb-interwork cases Marek Behún
2021-03-04 10:43       ` [RFC PATCH u-boot 00/12] U-Boot LTO (Sandbox + ARM Nokia RX-51) Marek Behun
2021-03-04 13:46         ` Adam Ford
2021-03-04 13:50           ` Marek Behun
2021-03-04 13:59             ` Adam Ford
2021-03-04 14:58           ` Tom Rini
2021-03-04 15:07             ` Adam Ford
2021-03-04 15:37               ` Marek Behun
2021-03-04 16:18                 ` Tom Rini
2021-03-04 15:59               ` Marek Behun
2021-03-04 22:18                 ` Adam Ford
2021-03-04 22:33                   ` Marek Behun
2021-03-05 11:25                     ` Adam Ford
2021-03-05 12:31                       ` Stefan Roese
2021-03-05 17:10                         ` Adam Ford
2021-03-06  3:03                           ` Adam Ford
2021-03-06 11:12                             ` Adam Ford
2021-03-06 17:37                               ` Marek Behun
2021-03-06 20:08                                 ` Tom Rini
2021-03-06 20:41                                   ` Pali Rohár
2021-03-06 20:54                                     ` Marek Behun
2021-03-06 21:00                                       ` Pali Rohár
2021-03-06 21:19                                         ` Marek Behun
2021-03-06 21:38                                           ` Pali Rohár
2021-03-06 21:49                                             ` Marek Behun
2021-03-07  3:45                                               ` Adam Ford
2021-03-07  4:06                                                 ` Marek Behun
2021-05-09 14:14                                                   ` Adam Ford
2021-05-09 18:44                                                     ` Marek Behun
2021-05-10 16:28                                                       ` Simon Glass
2021-05-13  9:22                                                         ` Pali Rohár
2021-03-04 16:17               ` Tom Rini [this message]
2021-03-04 16:35                 ` Pali Rohár

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