1OS:=$(shell uname)
2
3# Set ARCH to 32 or x32 for i386/x32 ABIs
4ARCH?=64
5ARCHFLAG=-m$(ARCH)
6
7ifeq ($(OS),FreeBSD)
8EXTRA_LIBS=-lprocstat
9endif
10
11ifeq ($(OS),Linux)
12PROCESSOR:=$(shell uname -p)
13
14ifneq ($(wildcard /usr/lib/$(PROCESSOR)-linux-gnu),)
15# Can use standard Debian location for static libraries.
16PLATFORM_LIBDIR=/usr/lib/$(PROCESSOR)-linux-gnu
17else
18# Attempt to determine library location from gcc configuration.
19PLATFORM_LIBDIR=$(shell gcc -v 2>&1 | grep "Configured with:" | sed 's/.*--libdir=\(\/usr\/[^ ]*\).*/\1/g')
20endif
21
22# Override for explicitly specified ARCHFLAG.
23# Use locally compiled libcaprights in this case, on the
24# assumption that any installed version is 64-bit.
25ifeq ($(ARCHFLAG),-m32)
26PROCESSOR=i386
27PLATFORM_LIBDIR=/usr/lib32
28LIBCAPRIGHTS=./libcaprights.a
29endif
30ifeq ($(ARCHFLAG),-mx32)
31PROCESSOR=x32
32PLATFORM_LIBDIR=/usr/libx32
33LIBCAPRIGHTS=./libcaprights.a
34endif
35
36# Detect presence of libsctp in normal Debian location
37ifneq ($(wildcard $(PLATFORM_LIBDIR)/libsctp.a),)
38LIBSCTP=-lsctp
39CXXFLAGS=-DHAVE_SCTP
40endif
41
42ifneq ($(LIBCAPRIGHTS),)
43# Build local libcaprights.a (assuming ./configure
44# has already been done in libcaprights/)
45LOCAL_LIBS=$(LIBCAPRIGHTS)
46LIBCAPRIGHTS_OBJS=libcaprights/capsicum.o libcaprights/linux-bpf-capmode.o libcaprights/procdesc.o libcaprights/signal.o
47LOCAL_CLEAN=$(LOCAL_LIBS) $(LIBCAPRIGHTS_OBJS)
48else
49# Detect installed libcaprights static library.
50ifneq ($(wildcard $(PLATFORM_LIBDIR)/libcaprights.a),)
51LIBCAPRIGHTS=$(PLATFORM_LIBDIR)/libcaprights.a
52else
53ifneq ($(wildcard /usr/lib/libcaprights.a),)
54LIBCAPRIGHTS=/usr/lib/libcaprights.a
55endif
56endif
57endif
58
59endif
60
61# Extra test programs for arch-transition tests
62EXTRA_PROGS = mini-me.32 mini-me.64
63ifneq ($(wildcard /usr/include/gnu/stubs-x32.h),)
64EXTRA_PROGS += mini-me.x32
65endif
66
67# Chain on to the master makefile
68include makefile
69
70./libcaprights.a: $(LIBCAPRIGHTS_OBJS)
71	ar cr $@ $^
72
73# Small static programs of known architectures
74# These may require additional packages to be installed; for example, for Debian:
75#  - libc6-dev-i386 provides 32-bit headers for a 64-bit system
76#  - libc6-dev-x32 provides headers for the x32 ABI.
77mini-me.32: mini-me.c
78	$(CC) $(CFLAGS) -m32 -static -o $@ $<
79mini-me.x32: mini-me.c
80	$(CC) $(CFLAGS) -mx32 -static -o $@ $<
81mini-me.64: mini-me.c
82	$(CC) $(CFLAGS) -m64 -static -o $@ $<
83