blob: e078dad7ffd1fe445da88f51c1f6297488bfcacf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
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
|
