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path: root/arch/arm/lib/lib1funcs.S
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2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-03-18arm: Migrate SYS_THUMB_BUILD to Kconfig, introduce SPL_SYS_THUMB_BUILDTom Rini
Today, we have cases where we wish to build all of U-Boot in Thumb2 mode for various reasons. We also have cases where we only build SPL in Thumb2 mode due to size constraints and wish to build the rest of the system in ARM mode. So in this migration we introduce a new symbol as well, SPL_SYS_THUMB_BUILD to control if we build everything or just SPL (or in theory, just U-Boot) in Thumb2 mode. Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
2016-06-04arm: lib: Fix fix push/pop-section directivesMarek Vasut
Repair typos in the previous "arm: lib: fix push/pop-section directives" patch, which prevented VCMA9 board from building. Signed-off-by: Marek Vasut <marex@denx.de> Fixes: b2f1858455e9 ("arm: lib: fix push/pop-section directives") Cc: Tom Warren <twarren@nvidia.com> Cc: Simon Glass <sjg@chromium.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Stephen Warren <swarren@nvidia.com>
2016-06-03arm: lib: fix push/pop-section directivesStephen Warren
With the existing code, function symbols are defined in .text, and the body is defined in .text.xxx. This causes (at least some version of) the linker not to emit the function body into the final binary, since it's part of a different section to the symbols being referenced. This of course causes a wide variety of failures. This change moves the push/pop-section directives before the function symbols, and after any relate ENDPROC macro invocations, so that symbols and bodies are all in the "pushed" sections, and thus the function bodies are emitted into the binary. This solves (at least) the boot problems currently seen on Tegra systems that use SPL (i.e. all ARMv7 Tegras). Fixes: 13b0a91a6d48 ("arm: lib: Split asm symbols into different .text subsections") Cc: Marek Vasut <marex@denx.de> Cc: Tom Warren <twarren@nvidia.com> Cc: Simon Glass <sjg@chromium.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2016-06-02arm: lib: Split asm symbols into different .text subsectionsMarek Vasut
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. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-06-02arm: lib: Import Thumb1 functionsMarek Vasut
Import functions into lib1funcs.S which are required for Thumb1 build. These functions come from gcc 5.3.1 release. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-06-02arm: lib: Repair Warning: conditional infixes are deprecated in unified syntaxMarek Vasut
Fix the following warning when building for thumb2 target by tweaking the instruction syntax: Warning: conditional infixes are deprecated in unified syntax Signed-off-by: Marek Vasut <marex@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-06-02arm: lib: Sync libgcc 32b division/modulo operationsMarek Vasut
Sync the libgcc 32bit division and modulo operations with Linux 4.4.6 , commit 0d1912303e54ed1b2a371be0bba51c384dd57326 . The functions in these four files are present in lib1funcs.S in Linux, so replace these files with lib1funcs.S from Linux. Since we do not support stack unwinding, instead of importing the whole asm/unwind.h and all the baggage, this patch defines empty UNWIND() macro in lib1funcs.S . Moreover, to make all of the functions available, define CONFIG_AEABI , which is safe, because U-Boot is always compiled with ARM EABI. This patch also defines CONFIG_THUMB2_KERNEL and CONFIG_ARM_ASM_UNIFIED which is necessary for correct build of these files both in ARM and Thumb mode, just like Linux does. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Tom Rini <trini@konsulko.com>