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| author | Alexey Brodkin <abrodkin@synopsys.com> | 2015-07-16 21:45:38 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-07-20 13:33:30 +0300 |
| commit | d05a76ab4d9ece9bd987a8c29e3f384ec9f7b211 (patch) | |
| tree | 9d9dd4e73a0836a2702f98372bdb063341a01a6c /arch/arc/Makefile | |
| parent | aeec6cdad6cda5fdf26f937c0d15f101539d8185 (diff) | |
| download | linux-d05a76ab4d9ece9bd987a8c29e3f384ec9f7b211.tar.gz | |
ARCv2: add knob for DIV_REV in Kconfig
Being highly configurable core ARC HS among other features might be configured with or without DIV_REM_OPTION (hardware divider). That option when enabled adds following instructions: div, divu, rem, remu. By default ARC HS38 has this option enabled. So we add here possibility to disable usage of hardware divider by compiler. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/Makefile')
| -rw-r--r-- | arch/arc/Makefile | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arc/Makefile b/arch/arc/Makefile index 46d87310220d..8a27a48304a4 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -36,8 +36,16 @@ cflags-$(atleast_gcc44) += -fsection-anchors cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape +ifdef CONFIG_ISA_ARCV2 + ifndef CONFIG_ARC_HAS_LL64 -cflags-$(CONFIG_ISA_ARCV2) += -mno-ll64 +cflags-y += -mno-ll64 +endif + +ifndef CONFIG_ARC_HAS_DIV_REM +cflags-y += -mno-div-rem +endif + endif cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables |