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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
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),misc)
include $(firstword $(wildcard $(sysdirs:=/sysctl.mk)))
sysdep_routines += clone llseek umount umount2 readahead \
setfsuid setfsgid makedev epoll_pwait signalfd \
eventfd eventfd_read eventfd_write prlimit
CFLAGS-gethostid.c = -fexceptions
CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=0x80000000-__getpagesize()"
# Note that bits/mman-linux.h is listed here though the file lives in the
# top-level bits/ subdirectory instead of here in sysdeps/.../linux/bits/.
# That is just so that other (non-Linux) configurations for whom the
# bits/mman-linux.h definitions work well do not have to duplicate the
# contents of the file. The file must still be listed in sysdep_headers
# here and in any non-Linux configuration that uses it; other
# configurations will not install the file.
sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
sys/klog.h sys/kdaemon.h \
sys/user.h sys/prctl.h \
sys/kd.h sys/soundcard.h sys/vt.h \
sys/quota.h sys/fsuid.h \
scsi/sg.h scsi/scsi.h scsi/scsi_ioctl.h sys/pci.h \
sys/ultrasound.h sys/raw.h sys/personality.h sys/epoll.h \
bits/a.out.h sys/inotify.h sys/signalfd.h sys/eventfd.h \
sys/timerfd.h sys/fanotify.h bits/eventfd.h bits/inotify.h \
bits/signalfd.h bits/timerfd.h bits/epoll.h \
bits/socket_type.h bits/syscall.h bits/sysctl.h \
bits/mman-linux.h
tests += tst-clone tst-fanotify
# Generate the list of SYS_* macros for the system calls (__NR_* macros).
# If there is more than one syscall list for different architecture
# variants, the CPU/Makefile defines abi-variants to be a list of names
# for those variants (e.g. 32 64), and, for each variant, defines
# abi-$(variant)-options to be compiler options to cause <asm/unistd.h>
# to define the desired list of syscalls and abi-$(variant)-condition to
# be the condition for those options to use in a C #if condition.
# abi-includes may be defined to a list of headers to include
# in the generated header, if the default does not suffice.
#
# The generated header is compiled with `-ffreestanding' to avoid any
# circular dependencies against the installed implementation headers.
# Such a dependency would require the implementation header to be
# installed before the generated header could be built (See bug 15711).
# In current practice the generated header dependencies do not include
# any of the implementation headers removed by the use of `-ffreestanding'.
$(objpfx)bits/syscall%h $(objpfx)bits/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 ''; \
$(foreach h,$(abi-includes), echo '#include <$(h)>';) \
echo ''; \
$(if $(abi-variants), \
$(foreach v,$(abi-variants),\
$(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
-x c $(sysincludes) $< $(abi-$(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 $(abi-$(v)-condition),\
echo '#if $(abi-$(v)-condition)';) \
cat $(@:.d=.h).new$(v); \
$(if $(abi-$(v)-condition),echo '#endif';) \
rm -f $(@:.d=.h).new$(v); \
), \
$(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
-x c $(sysincludes) $< \
-D_LIBC -dM | \
sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
LC_ALL=C sort;) \
} > $(@:.d=.h).new
mv -f $(@:.d=.h).new $(@:.d=.h)
ifdef abi-variants
ifneq (,$(objpfx))
sed $(sed-remove-objpfx) \
$(foreach v,$(abi-variants),$(@:.h=.d)-t$(v)) > $(@:.h=.d)-t3
else
cat $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v)) \
> $(@:.h=.d)-t3
endif
rm -f $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v))
mv -f $(@:.h=.d)-t3 $(@:.h=.d)
else
mv -f $(@:.h=.d)-t $(@:.h=.d)
endif
ifndef no_deps
# Get the generated list of dependencies (probably /usr/include/asm/unistd.h).
-include $(objpfx)bits/syscall.d
endif
generated += bits/syscall.h bits/syscall.d
endif
ifeq ($(subdir),time)
sysdep_headers += sys/timex.h bits/timex.h
sysdep_routines += ntp_gettime ntp_gettimex
endif
ifeq ($(subdir),socket)
sysdep_headers += net/if_ppp.h net/ppp-comp.h \
net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \
net/if_slip.h net/if_packet.h net/if_shaper.h
sysdep_routines += cmsg_nxthdr
endif
ifeq ($(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 += sched_getcpu
tests += tst-getcpu
CFLAGS-fork.c = $(libio-mtsafe)
CFLAGS-getpid.o = -fomit-frame-pointer
CFLAGS-getpid.os = -fomit-frame-pointer
endif
ifeq ($(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 ($(subdir),io)
sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
sync_file_range fallocate fallocate64
sysdep_headers += bits/fcntl-linux.h
endif
ifeq ($(subdir),elf)
sysdep-rtld-routines += dl-brk dl-sbrk dl-getcwd dl-openat64 dl-opendir \
dl-fxstatat64
libof-lddlibc4 = lddlibc4
others += pldd
install-bin += pldd
$(objpfx)pldd: $(objpfx)xmalloc.o
endif
ifeq ($(subdir),rt)
CFLAGS-mq_send.c += -fexceptions
CFLAGS-mq_receive.c += -fexceptions
endif
ifeq ($(subdir),nscd)
sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_SENDFILE -DHAVE_INOTIFY -DHAVE_NETLINK
CFLAGS-gai.c += -DNEED_NETLINK
endif
ifeq ($(subdir),nptl)
tests += tst-setgetname tst-align-clone tst-getpid1 tst-getpid2
# In this test, we create a CLONE_VM "thread" that shares TLS storage
# with the original thread. Both threads then race in ld.so with lazy PLT
# resolution. Avoid this race by disabling lazy binding. BZ #11214.
tst-getpid2-ENV = LD_BIND_NOW=1
endif
|
