From: Peter Tyser <ptyser@xes-inc.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 6/7] POWERPC: enable --gc-sections and -ffunction-sections -fdata-sections
Date: Sun, 21 Nov 2010 16:31:24 -0600 [thread overview]
Message-ID: <1290378684.20072.125.camel@petert> (raw)
In-Reply-To: <1290373420-3053-7-git-send-email-wd@denx.de>
Hi Wolfgang,
On Sun, 2010-11-21 at 22:03 +0100, Wolfgang Denk wrote:
> The switch from archive libraries to partial linking has introduced a
> number of problems, that are non-trivial to solve. For example, it is
> no longer possible to include individual object files in the linker
> script as we did before for example in the case of boards with
> embedded environment to fill up the gap caused by the need to align
> the environment on flash erase block boundaries.
>
> The best (but unfortunately not easiest) approach to address this
> problem is to enable -ffunction-sections (and -ffunction-sections) so
's/function-sections/data-sections/' in the 2nd location above.
<snip>
> --- a/arch/powerpc/config.mk
> +++ b/arch/powerpc/config.mk
> @@ -25,9 +25,9 @@ CROSS_COMPILE ?= ppc_8xx-
>
> STANDALONE_LOAD_ADDR = 0x40000
>
> -PLATFORM_RELFLAGS += -mrelocatable
> +PLATFORM_RELFLAGS += -mrelocatable -ffunction-sections -fdata-sections
> PLATFORM_CPPFLAGS += -DCONFIG_PPC -D__powerpc__
> -PLATFORM_LDFLAGS += -n
> +PLATFORM_LDFLAGS += -n --gc-sections
The above changes already exist in arch/powerpc/cpu/mpc85xx/config.mk
and arch/powerpc/cpu/mpc86xx/config.mk. It'd be nice to remove those
references in this patch so they aren't duplicated.
Best,
Peter
next prev parent reply other threads:[~2010-11-21 22:31 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-21 21:03 [U-Boot] [PATCH 0/7] Address partial linking issues Wolfgang Denk
2010-11-21 21:03 ` [U-Boot] [PATCH 1/7] common/Makefile: don't include env_embedded.o into libcommon Wolfgang Denk
2010-11-21 21:45 ` Mike Frysinger
2010-11-21 21:03 ` [U-Boot] [PATCH 2/7] cpu/ppc4xx/Makefile: build only needed object files Wolfgang Denk
2010-11-21 21:03 ` [U-Boot] [PATCH 3/7] arch/powerpc/config.mk: make CONFIG_SYS_LDSCRIPT settings work Wolfgang Denk
2010-11-21 21:03 ` [U-Boot] [PATCH 4/7] PPChameleonEVB and CATcenter need a custom linker script Wolfgang Denk
2010-11-21 21:03 ` [U-Boot] [PATCH 5/7] ERIC: drop unsupported board configuration Wolfgang Denk
2010-11-21 21:03 ` [U-Boot] [PATCH 6/7] POWERPC: enable --gc-sections and -ffunction-sections -fdata-sections Wolfgang Denk
2010-11-21 22:31 ` Peter Tyser [this message]
2010-11-22 7:11 ` Wolfgang Denk
2010-11-22 7:10 ` [U-Boot] [PATCH 6/7 v2] " Wolfgang Denk
2010-11-21 21:03 ` [U-Boot] [PATCH 7/7] 4xx: Cleanup for partial linking and --gc-sections Wolfgang Denk
2010-11-23 13:31 ` Stefan Roese
2010-11-23 19:55 ` Wolfgang Denk
2010-11-24 5:40 ` Stefan Roese
2010-11-22 7:34 ` [U-Boot] [PATCH] 86xx: " Wolfgang Denk
2010-11-22 20:37 ` [U-Boot] [PATCH] 8xx: " Wolfgang Denk
2010-11-22 21:44 ` [U-Boot] [PATCH] 5xx: " Wolfgang Denk
2010-11-22 22:40 ` [U-Boot] [PATCH] 512x: " Wolfgang Denk
2010-11-22 22:58 ` Timur Tabi
2010-11-29 21:24 ` Anatolij Gustschin
2010-11-29 21:28 ` [U-Boot] [PATCH] video: move fsl_diu_fb driver to drivers/video Anatolij Gustschin
2010-12-01 19:53 ` Anatolij Gustschin
2010-11-23 6:02 ` [U-Boot] [PATCH 0/7] Address partial linking issues Stefan Roese
2010-11-25 16:00 ` [U-Boot] [PATCH 01/24] 0000-Address-partial-linking-issues Wolfgang Denk
2010-11-27 22:18 ` Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 01/24] ERIC: drop unsupported board configuration Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 02/24] barco: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 03/24] e1000: fix compile warning Wolfgang Denk
2010-11-28 17:48 ` Sergei Shtylyov
2010-11-25 16:00 ` [U-Boot] [PATCH 04/24] IDS8247: remove redundant flash.c file Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 05/24] WINBOND_83C553: enable only on boards that actually use it Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 06/24] cam5200_niosflash: fix build warnings Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 07/24 V2] common/Makefile: don't include env_embedded.o into libcommon Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 08/24 V2] cpu/ppc4xx/Makefile: build only needed object files Wolfgang Denk
2010-11-25 16:10 ` Stefan Roese
2010-11-25 16:00 ` [U-Boot] [PATCH 09/24 V2] arch/powerpc/*/config.mk: make CONFIG_SYS_LDSCRIPT settings work Wolfgang Denk
2010-11-25 16:20 ` [U-Boot] [PATCH 09/24 V2] arch/powerpc/*/config.mk: makeCONFIG_SYS_LDSCRIPT " Haiying Wang
2010-11-25 17:19 ` Wolfgang Denk
2010-11-25 18:16 ` [U-Boot] [PATCH 09/24 V2] arch/powerpc/*/config.mk:makeCONFIG_SYS_LDSCRIPT " Haiying Wang
2010-11-25 18:28 ` Wolfgang Denk
2010-11-25 18:59 ` Haiying Wang
2010-11-25 17:47 ` [U-Boot] [PATCH 09/24 V2] arch/powerpc/*/config.mk: makeCONFIG_SYS_LDSCRIPT " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 10/24 V2] PPChameleonEVB and CATcenter need a custom linker script Wolfgang Denk
2010-11-25 16:12 ` Stefan Roese
2010-11-25 16:00 ` [U-Boot] [PATCH 11/24 V2] ppc4xx: Fix build problems of IBM DDR2 NAND booting targets Wolfgang Denk
2010-11-25 16:15 ` Stefan Roese
2010-11-25 16:00 ` [U-Boot] [PATCH 12/24 V3] POWERPC: enable --gc-sections and -ffunction-sections -fdata-sections Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 13/24 V2] ppc4xx: Cleanup for partial linking and --gc-sections Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 14/24 V2] ppc4xx/NAND: Reduce size of NAND SPL image Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 15/24 V2] 83xx: Cleanup for partial linking and --gc-sections Wolfgang Denk
2010-11-25 18:02 ` Wolfgang Denk
2010-11-25 18:23 ` [U-Boot] [PATCH 15/24 V2] 83xx: Cleanup for partial linking and--gc-sections Haiying Wang
2010-11-25 18:32 ` Wolfgang Denk
2010-11-25 18:56 ` Haiying Wang
2010-11-26 19:53 ` Wolfgang Denk
2010-11-26 19:56 ` [U-Boot] [PATCH 15/25 V3] 83xx: Cleanup for partial linking and --gc-sections Wolfgang Denk
2010-11-28 15:11 ` [U-Boot] [PATCH 15/25 V4] " Kim Phillips
2010-11-28 16:36 ` Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 16/24 V2] 86xx: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 17/24 V2] 8xx: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 18/24 V2] 5xx: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 19/24 V2] 512x: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 20/24 V2] 5xxx: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 21/24 V2] 8220: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 22/24 V2] 824x: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 23/24 V2] 8260: " Wolfgang Denk
2010-11-25 16:00 ` [U-Boot] [PATCH 24/24 V2] 74xx_7xx: " Wolfgang Denk
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