From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 11/12] arm: lib: Split asm symbols into different .text subsections
Date: Fri, 3 Jun 2016 10:02:52 -0600 [thread overview]
Message-ID: <5751AA2C.1010700@wwwdotorg.org> (raw)
In-Reply-To: <1464278507-5092-11-git-send-email-marex@denx.de>
On 05/26/2016 10:01 AM, Marek Vasut wrote:
> Split each symbol in lib1funcs into different .text.foo section instead
> of placing all of them into plain .text . This allows the linker to collect
> and discard unused assembler symbols.
This patch causes Tegra-boards-that-use-SPL (i.e. all ARMv7 boards but
not ARMv8) to fail to boot with zero output. Taking u-boot.git master
branch and reverting this one patch is enough to make U-Boot work again.
I haven't investigated how to solve this yet. Likely relevant background:
32-bit Tegra SPL runs on an ARM1176 CPU whereas main U-Boot runs on an
ARMv7 CPU. We need to use PRIVATE_LIBGCC (at least for SPL) since the
libgcc in the toolchains we use is compiled for ARMv7, and hence picking
it up in SPL breaks boot. I wonder if these section name changes are
causing the linker to pull in the toolchain's libgcc rather than using
U-Boot's copy compiled for ARM1176?
next prev parent reply other threads:[~2016-06-03 16:02 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-26 16:01 [U-Boot] [PATCH 01/12] arm: config: Introduce CONFIG_SYS_ARM_ARCH Marek Vasut
2016-05-26 16:01 ` [U-Boot] [PATCH 02/12] arm: include: Import unified.h from Linux kernel Marek Vasut
2016-06-02 13:05 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot, " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 03/12] arm: lib: Drop underscore from private libgcc filenames Marek Vasut
2016-06-02 13:05 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot, " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 04/12] arm: lib: Sync libgcc shift operations Marek Vasut
2016-06-02 13:05 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot,04/12] " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 05/12] arm: lib: Sync libgcc 32b division/modulo operations Marek Vasut
2016-06-02 13:05 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot, " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 06/12] arm: lib: Fix uldivmod.S build on Thumb2 Marek Vasut
2016-06-02 13:05 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot, " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 07/12] arm: lib: Import __do_div64 from Linux Marek Vasut
2016-06-02 13:05 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot,07/12] " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 08/12] arm: lib: Repair Warning: conditional infixes are deprecated in unified syntax Marek Vasut
2016-06-02 13:05 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot, " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 09/12] arm: lib: import muldi3.S from Linux Marek Vasut
2016-06-02 13:06 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot,09/12] " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 10/12] arm: lib: Import Thumb1 functions Marek Vasut
2016-06-02 13:06 ` Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot,10/12] " Tom Rini
2016-05-26 16:01 ` [U-Boot] [PATCH 11/12] arm: lib: Split asm symbols into different .text subsections Marek Vasut
2016-06-02 13:06 ` Tom Rini
2016-06-03 14:00 ` [U-Boot] [U-Boot, " Tom Rini
2016-06-03 16:02 ` Stephen Warren [this message]
2016-05-26 16:01 ` [U-Boot] [PATCH 12/12] lib: Enable private libgcc by default Marek Vasut
2016-06-02 13:06 ` Tom Rini
2016-06-03 14:00 ` [U-Boot] [U-Boot,12/12] " Tom Rini
2016-06-06 17:35 ` Simon Glass
2016-06-06 17:46 ` Michael Zimmermann
2016-06-02 13:05 ` [U-Boot] [PATCH 01/12] arm: config: Introduce CONFIG_SYS_ARM_ARCH Tom Rini
2016-06-03 13:59 ` [U-Boot] [U-Boot, " Tom Rini
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