about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/Makefile
blob: 458658df29695da5a4640ae59c0bcb017a5105fe (plain) (blame)
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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
ifeq ($(subdir),csu)
sysdep_routines += errno-loc
endif

ifeq ($(subdir),assert)
CFLAGS-assert.c += -DFATAL_PREPARE_INCLUDE='<fatal-prepare.h>'
CFLAGS-assert-perr.c += -DFATAL_PREPARE_INCLUDE='<fatal-prepare.h>'
endif

ifeq ($(subdir),malloc)
CFLAGS-malloc.c += -DMORECORE_CLEARS=2
endif

ifeq ($(subdir),socket)
sysdep_routines += internal_accept4 recvmmsg internal_recvmmsg sendmmsg \
		   internal_sendmmsg
endif

ifeq ($(subdir),misc)
sysdep_routines += sysctl clone llseek umount umount2 readahead \
		   setfsuid setfsgid makedev epoll_pwait signalfd \
		   eventfd eventfd_read eventfd_write prlimit

CFLAGS-gethostid.c = -fexceptions
CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=0x80000000-__getpagesize()"

sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
		  sys/klog.h sys/kdaemon.h \
		  sys/user.h sys/procfs.h sys/prctl.h \
		  sys/kd.h sys/soundcard.h sys/vt.h \
		  sys/quota.h sys/fsuid.h \
		  scsi/sg.h scsi/scsi.h scsi/scsi_ioctl.h sys/pci.h \
		  sys/ultrasound.h sys/raw.h sys/personality.h sys/epoll.h \
		  bits/a.out.h sys/inotify.h sys/signalfd.h sys/eventfd.h \
		  sys/timerfd.h sys/fanotify.h bits/eventfd.h bits/inotify.h \
		  bits/signalfd.h bits/timerfd.h bits/epoll.h

install-others += $(inst_includedir)/bits/syscall.h

tests += tst-clone

# Generate the list of SYS_* macros for the system calls (__NR_* macros).

# If there is more than one syscall list for different architecture
# variants, the CPU/Makefile defines syscall-list-variants to be a
# list of names for those variants (e.g. 32bit 64bit), and, for each
# variant, defines syscall-list-$(variant)-options to be compiler
# options to cause <asm/unistd.h> to define the desired list of
# syscalls and syscall-list-$(variant)-condition to be the condition
# for those options to use in a C #if condition.
# syscall-list-includes may be defined to a list of headers to include
# in the generated header, if the default does not suffice.

ifndef syscall-list-variants
syscall-list-variants := default
syscall-list-default-options :=
syscall-list-default-condition :=
endif

ifndef syscall-list-includes
syscall-list-includes := bits/wordsize.h
endif

$(objpfx)syscall-%.h $(objpfx)syscall-%.d: ../sysdeps/unix/sysv/linux/sys/syscall.h
	$(make-target-directory)
	{ \
	 echo '/* Generated at libc build time from kernel syscall list.  */';\
	 echo ''; \
	 echo '#ifndef _SYSCALL_H'; \
	 echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
	 echo '#endif'; \
	 echo ''; \
	 $(foreach h,$(syscall-list-includes), echo '#include <$(h)>';) \
	 echo ''; \
	 $(foreach v,$(syscall-list-variants),\
	 $(CC) -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
	       -x c $(sysincludes) $< $(syscall-list-$(v)-options) \
	       -D_LIBC -dM | \
	 sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
	 LC_ALL=C sort > $(@:.d=.h).new$(v); \
	 $(if $(syscall-list-$(v)-condition),\
	 echo '#if $(syscall-list-$(v)-condition)';) \
	 cat $(@:.d=.h).new$(v); \
	 $(if $(syscall-list-$(v)-condition),echo '#endif';) \
	 rm -f $(@:.d=.h).new$(v); \
	 ) \
	} > $(@:.d=.h).new
	mv -f $(@:.d=.h).new $(@:.d=.h)
ifneq (,$(objpfx))
	sed $(sed-remove-objpfx) \
	 $(foreach v,$(syscall-list-variants),$(@:.h=.d)-t$(v)) > $(@:.h=.d)-t3
else
	cat $(foreach v,$(syscall-list-variants),$(@:.h=.d)-t$(v)) \
	 > $(@:.h=.d)-t3
endif
	rm -f $(foreach v,$(syscall-list-variants),$(@:.h=.d)-t$(v))
	mv -f $(@:.h=.d)-t3 $(@:.h=.d)

$(inst_includedir)/bits/syscall.h: $(objpfx)syscall-list.h $(+force)
	$(make-target-directory)
	if test -r $@ && cmp -s $< $@; \
	then echo 'bits/syscall.h unchanged'; \
	else $(INSTALL_DATA) $< $@; fi

ifndef no_deps
# Get the generated list of dependencies (probably /usr/include/asm/unistd.h).
-include $(objpfx)syscall-list.d
endif
generated += syscall-list.h syscall-list.d
endif

ifeq ($(subdir),time)
sysdep_headers += sys/timex.h bits/timex.h

sysdep_routines += ntp_gettime ntp_gettimex
endif

ifeq ($(subdir),socket)
sysdep_headers += net/if_ppp.h net/ppp-comp.h \
		  net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \
		  net/if_slip.h net/if_packet.h net/if_shaper.h
sysdep_routines += cmsg_nxthdr sa_len
endif

ifeq ($(subdir),sunrpc)
sysdep_headers += nfs/nfs.h
endif

ifeq ($(subdir),termios)
sysdep_headers += termio.h
endif

ifeq ($(subdir),posix)
sysdep_headers += bits/initspin.h

sysdep_routines += exit-thread sched_getcpu

tests += tst-getcpu
endif

ifeq ($(subdir),inet)
sysdep_headers += netinet/if_fddi.h netinet/if_tr.h \
		  netipx/ipx.h netash/ash.h netax25/ax25.h netatalk/at.h \
		  netrom/netrom.h netpacket/packet.h netrose/rose.h \
		  neteconet/ec.h netiucv/iucv.h
endif

# Don't compile the ctype glue code, since there is no old non-GNU C library.
inhibit-glue = yes

ifeq ($(subdir),dirent)
sysdep_routines += getdirentries getdirentries64
endif

ifeq ($(subdir),nis)
CFLAGS-ypclnt.c = -DUSE_BINDINGDIR=1
endif

ifeq ($(subdir),io)
sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
		   sync_file_range open_2 open64_2 fallocate fallocate64
endif

ifeq ($(subdir),elf)
sysdep-rtld-routines += dl-brk dl-sbrk dl-getcwd dl-openat64 dl-opendir \
			dl-fxstatat64

CPPFLAGS-lddlibc4 += -DNOT_IN_libc
endif

ifeq ($(subdir),rt)
CFLAGS-mq_send.c += -fexceptions
CFLAGS-mq_receive.c += -fexceptions
endif

ifeq ($(subdir),nscd)
sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_SENDFILE -DHAVE_INOTIFY -DHAVE_NETLINK
CFLAGS-gai.c += -DNEED_NETLINK
endif