tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1core-y += arch/um/sys-i386/ arch/x86/crypto/
2
3TOP_ADDR := $(CONFIG_TOP_ADDR)
4
5START := 0x8048000
6
7LDFLAGS += -m elf_i386
8ELF_ARCH := $(SUBARCH)
9ELF_FORMAT := elf32-$(SUBARCH)
10OBJCOPYFLAGS := -O binary -R .note -R .comment -S
11HEADER_ARCH := x86
12CHECKFLAGS += -D__i386__
13
14ifeq ("$(origin SUBARCH)", "command line")
15ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
16KBUILD_CFLAGS += $(call cc-option,-m32)
17KBUILD_AFLAGS += $(call cc-option,-m32)
18LINK-y += $(call cc-option,-m32)
19UML_OBJCOPYFLAGS += -F $(ELF_FORMAT)
20
21export LDFLAGS HOSTCFLAGS HOSTLDFLAGS UML_OBJCOPYFLAGS
22endif
23endif
24
25# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
26include $(srctree)/arch/x86/Makefile_32.cpu
27
28# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
29cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
30
31# Prevent sprintf in nfsd from being converted to strcpy and resulting in
32# an unresolved reference.
33cflags-y += -ffreestanding
34
35KBUILD_CFLAGS += $(cflags-y)