On Thu, May 26, 2016 at 06:01:37PM +0200, Marek Vasut wrote: > Import unified.h from Linux kernel 4.4.6 , commit > 0d1912303e54ed1b2a371be0bba51c384dd57326 . This header file contains > macros used in libgcc functions in Linux kernel on ARM and will be > needed for the libgcc sync. > > Since unified.h defines the W(instr) macro, we must drop this from > the macro from memcpy.S , otherwise this triggers a warning about > symbol redefinition. In order to keep the changes to unified.h to > the minimum, tweak arch/arm/lib/Makefile such that it defines the > CONFIG_ARM_ASM_UNIFIED macro, which places .syntax unified into all > of the assembler files. This is mandatory. > > Moreover, for Thumb2 build, define CONFIG_THUMB2_KERNEL macro if and > only if Thumb2 build is enabled. This macro is checked by unified.h > and toggles between ARM and Thumb2 variant of the instructions in the > assembler source files. > > Finally, this patch defines __LINUX_ARM_ARCH__=N macro based on the > new CONFIG_SYS_ARM_ARCH Kconfig option. This macro selects between > more optimal and more dense codepaths which work on armv5 and newer > and less optimal codepaths which work on armv4 and possible armv3m. > Tegra2 needs the same special handling as it does in arch/arm/Makefile > to cater for the arm720t boot core. > > Signed-off-by: Marek Vasut <ma...@denx.de> > Cc: Albert Aribaud <albert.u.b...@aribaud.net> > Cc: Masahiro Yamada <yamada.masah...@socionext.com> > Cc: Simon Glass <s...@chromium.org> > Cc: Tom Rini <tr...@konsulko.com> > Reviewed-by: Tom Rini <tr...@konsulko.com>
Applied to u-boot/master, thanks! -- Tom
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