[elf] Work around entry point bug in NetBSD kernels
[people/asdlkf/gpxe.git] / src / arch / x86_64 / Makefile
1 # Code size reduction.
2 #
3 CFLAGS          += -fstrength-reduce -fomit-frame-pointer
4
5 # Code size reduction.  gcc3 needs a different syntax to gcc2 if you
6 # want to avoid spurious warnings.
7 #
8 CFLAGS          += -falign-jumps=1 -falign-loops=1 -falign-functions=1
9
10 # Use %rip-relative addressing wherever possible.
11 #
12 CFLAGS          += -fpie
13
14 # Force 64-bit code
15 #
16 CFLAGS          += -m64
17 ASFLAGS         += --64
18 LDFLAGS         += -m elf_x86_64
19
20 # EFI requires -fshort-wchar, and nothing else currently uses wchar_t
21 #
22 CFLAGS          += -fshort-wchar
23
24 # We need to undefine the default macro "i386" when compiling .S
25 # files, otherwise ".arch i386" translates to ".arch 1"...
26 #
27 CFLAGS                  += -Ui386
28
29 # x86_64-specific directories containing source files
30 #
31 SRCDIRS         += arch/x86_64/prefix
32
33 # Include common x86 Makefile
34 #
35 MAKEDEPS        += arch/x86/Makefile
36 include arch/x86/Makefile
37
38 # Include platform-specific Makefile
39 #
40 MAKEDEPS        += arch/x86_64/Makefile.$(PLATFORM)
41 include arch/x86_64/Makefile.$(PLATFORM)