diff options
Diffstat (limited to 'usr/klibc/arch/arm/MCONFIG')
| -rw-r--r-- | usr/klibc/arch/arm/MCONFIG | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/usr/klibc/arch/arm/MCONFIG b/usr/klibc/arch/arm/MCONFIG new file mode 100644 index 0000000..db5b14a --- /dev/null +++ b/usr/klibc/arch/arm/MCONFIG @@ -0,0 +1,40 @@ +# -*- makefile -*- +# +# arch/arm/MCONFIG +# +# Special rules for this architecture. Note that this is actually +# included from the main Makefile, and that pathnames should be +# accordingly. +# + +CPU_ARCH ?= armv4 +CPU_TUNE ?= strongarm + +KLIBCOPTFLAGS += -Os -march=$(CPU_ARCH) -mtune=$(CPU_TUNE) +KLIBCBITSIZE = 32 +KLIBCREQFLAGS += -fno-exceptions +KLIBCSTRIPFLAGS += -R .ARM.exidx + +ifeq ($(CONFIG_KLIBC_THUMB),y) +CPU_ARCH := $(CPU_ARCH)t +KLIBCREQFLAGS += -mthumb +KLIBCREQFLAGS += -mabi=aapcs-linux +else +# Extra linkflags when building the shared version of the library +ifeq ($(CONFIG_AEABI),y) +KLIBCREQFLAGS += -mabi=aapcs-linux -mno-thumb-interwork +else +KLIBCREQFLAGS += -mabi=apcs-gnu -mno-thumb-interwork +endif +endif + +# Normal binaries start at 64 kiB. A32 branch instructions have a +# range of ±32 MiB and T32 branch instructions only ±16 MiB, so we +# have to put klibc.so in that range. Putting it close above the +# executable can cause breakage, so instead swap them around: +# klibc.so at 2 MiB and executable at 4 MiB. +KLIBCLDFLAGS = $(LD_IMAGE_BASE_OPT) 0x400000 +KLIBCSHAREDFLAGS = $(LD_IMAGE_BASE_OPT) 0x200000 + +# Kernel uses dedicated page or vDSO for signal return since 2.6.13 +KLIBCEXECSTACK := n |