diff options
Diffstat (limited to 'usr/klibc/arch/mips64/MCONFIG')
| -rw-r--r-- | usr/klibc/arch/mips64/MCONFIG | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/usr/klibc/arch/mips64/MCONFIG b/usr/klibc/arch/mips64/MCONFIG new file mode 100644 index 0000000..e078dad --- /dev/null +++ b/usr/klibc/arch/mips64/MCONFIG @@ -0,0 +1,34 @@ +# -*- makefile -*- +# +# arch/mips64/MCONFIG +# +# Special rules for this architecture. Note that this is actually +# included from the main Makefile, and that pathnames should be +# accordingly. +# + +KLIBCARCHREQFLAGS = -fno-pic -mno-abicalls -G 0 +KLIBCOPTFLAGS += -Os +KLIBCBITSIZE = 64 + +# Extra linkflags when building the shared version of the library +# This address needs to be reachable using normal inter-module +# calls, and work on the memory models for this architecture. +# Normal binaries start at 0x120000000 (4608 MiB). +# * On R5 and earlier, non-PIC jumps usually use the JAL instruction +# which requires a destination within the same 256 MiB aligned +# region. Since we can't put ourselves below the normal load +# address, use the very top of the 256 MiB region (minus 2 MiB). +# * On R6, non-PIC jumps may use either the JAL instruction or the +# BALC instruction which requires a destination within ±128 MiB. Put +# ourselves just under 128 MiB above the executable base address. +ifneq ($(CONFIG_KLIBC_MIPS_USE_CB),y) +KLIBCARCHREQFLAGS += $(call cc-option,-mcompact-branches=never) +KLIBCSHAREDFLAGS = $(LD_IMAGE_BASE_OPT) 0x12FE00000 +else +KLIBCARCHREQFLAGS += -mcompact-branches=optimal +KLIBCSHAREDFLAGS = $(LD_IMAGE_BASE_OPT) 0x127E00000 +endif + +# Kernel uses vDSO for signal return since 2.6.34 +KLIBCEXECSTACK := n |