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| author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
|---|---|---|
| committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
| commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
| tree | 65ca85f13617aee1dce474596800950f266a456c /roms/ipxe/src/arch/i386/Makefile | |
| download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip | |
Diffstat (limited to 'roms/ipxe/src/arch/i386/Makefile')
| -rw-r--r-- | roms/ipxe/src/arch/i386/Makefile | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/roms/ipxe/src/arch/i386/Makefile b/roms/ipxe/src/arch/i386/Makefile new file mode 100644 index 00000000..4925cc4e --- /dev/null +++ b/roms/ipxe/src/arch/i386/Makefile @@ -0,0 +1,109 @@ +# Force i386-only instructions +# +CFLAGS += -march=i386 + +# Code size reduction. +# +CFLAGS += -fomit-frame-pointer + +# Code size reduction. +# +ifeq ($(CCTYPE),gcc) +CFLAGS += -fstrength-reduce +endif + +# Code size reduction. gcc3 needs a different syntax to gcc2 if you +# want to avoid spurious warnings. +# +ifeq ($(CCTYPE),gcc) +GCC_VERSION := $(subst ., ,$(shell $(CC) -dumpversion)) +GCC_MAJOR := $(firstword $(GCC_VERSION)) +ifeq ($(GCC_MAJOR),2) +CFLAGS += -malign-jumps=1 -malign-loops=1 -malign-functions=1 +else +CFLAGS += -falign-jumps=1 -falign-loops=1 -falign-functions=1 +endif # gcc2 +endif # gcc + +# Code size reduction. This is almost always a win. The kernel uses +# it, too. +# +ifeq ($(CCTYPE),gcc) +CFLAGS += -mpreferred-stack-boundary=2 +endif + +# Code size reduction. Use regparm for all functions - C functions +# called from assembly (or vice versa) need __asmcall now +# +CFLAGS += -mregparm=3 + +# Code size reduction. Use -mrtd (same __asmcall requirements as above) +ifeq ($(CCTYPE),gcc) +CFLAGS += -mrtd +endif + +# Code size reduction. This is the logical complement to -mregparm=3. +# It doesn't currently buy us anything, but if anything ever tries to +# return small structures, let's be prepared +# +CFLAGS += -freg-struct-return + +# Force 32-bit code even on an x86-64 machine +# +CFLAGS += -m32 +ASFLAGS += --32 +ifeq ($(HOST_OS),FreeBSD) +LDFLAGS += -m elf_i386_fbsd +else ifeq ($(HOST_OS),OpenBSD) +LDFLAGS += -m elf_i386_obsd +else +LDFLAGS += -m elf_i386 +endif + +# EFI requires -fshort-wchar, and nothing else currently uses wchar_t +# +CFLAGS += -fshort-wchar + +# We need to undefine the default macro "i386" when compiling .S +# files, otherwise ".arch i386" translates to ".arch 1"... +# +CFLAGS += -Ui386 + +# Define version string for lkrnprefix.S +# +CFLAGS_lkrnprefix += -DVERSION="\"$(VERSION)\"" + +# Locations of utilities +# +ISOLINUX_BIN_LIST := \ + $(ISOLINUX_BIN) \ + /usr/lib/syslinux/isolinux.bin \ + /usr/lib/syslinux/bios/isolinux.bin \ + /usr/share/syslinux/isolinux.bin \ + /usr/share/syslinux/bios/isolinux.bin \ + /usr/local/share/syslinux/isolinux.bin \ + /usr/local/share/syslinux/bios/isolinux.bin \ + /usr/lib/ISOLINUX/isolinux.bin +ISOLINUX_BIN = $(firstword $(wildcard $(ISOLINUX_BIN_LIST))) + +# i386-specific directories containing source files +# +SRCDIRS += arch/i386/core arch/i386/transitions arch/i386/prefix +SRCDIRS += arch/i386/firmware/pcbios +SRCDIRS += arch/i386/image +SRCDIRS += arch/i386/interface/pcbios +SRCDIRS += arch/i386/interface/pxe +SRCDIRS += arch/i386/interface/pxeparent +SRCDIRS += arch/i386/interface/syslinux +SRCDIRS += arch/i386/interface/vmware +SRCDIRS += arch/i386/hci/commands + +# Include common x86 Makefile +# +MAKEDEPS += arch/x86/Makefile +include arch/x86/Makefile + +# Include platform-specific Makefile +# +MAKEDEPS += arch/i386/Makefile.$(PLATFORM) +include arch/i386/Makefile.$(PLATFORM) |