diff options
| author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2015-10-23 18:06:40 +0200 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2015-11-10 15:03:48 +0100 |
| commit | 62e92077a8936e60087d55683538ee386cc673aa (patch) | |
| tree | 98bf9f9796ab466ad1bff97c7672d5c3159526d3 /arch/arm/lib/memcpy.S | |
| parent | bf104ffa2594e5bf14ef2d5ac2711084c763ef77 (diff) | |
| download | u-boot-62e92077a8936e60087d55683538ee386cc673aa.tar.gz | |
arm: support Thumb-1 with CONFIG_SYS_THUMB_BUILD
When building a Thumb-1-only target with CONFIG_SYS_THUMB_BUILD,
some files fail to build, most of the time because they include
mcr instructions, which only exist for Thumb-2.
This patch introduces a Kconfig option CONFIG_THUMB2 and uses
it to select between Thumb-2 and ARM mode for the aforementioned
files.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Diffstat (limited to 'arch/arm/lib/memcpy.S')
| -rw-r--r-- | arch/arm/lib/memcpy.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/lib/memcpy.S b/arch/arm/lib/memcpy.S index eeaf003529..7d9fc0f9be 100644 --- a/arch/arm/lib/memcpy.S +++ b/arch/arm/lib/memcpy.S @@ -13,7 +13,7 @@ #include <linux/linkage.h> #include <asm/assembler.h> -#ifdef CONFIG_SYS_THUMB_BUILD +#if defined(CONFIG_SYS_THUMB_BUILD) && !defined(MEMCPY_NO_THUMB_BUILD) #define W(instr) instr.w #else #define W(instr) instr @@ -62,7 +62,7 @@ /* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ .syntax unified -#ifdef CONFIG_SYS_THUMB_BUILD +#if defined(CONFIG_SYS_THUMB_BUILD) && !defined(MEMCPY_NO_THUMB_BUILD) .thumb .thumb_func #endif |