sysdeps/unix/sysv/linux/Makefile

   1 ifeq ($(subdir),csu)
   2 sysdep_routines += errno-loc
   3 endif
   4
   5 ifeq ($(subdir),assert)
   6 CFLAGS-assert.c += -DFATAL_PREPARE_INCLUDE='<fatal-prepare.h>'
   7 CFLAGS-assert-perr.c += -DFATAL_PREPARE_INCLUDE='<fatal-prepare.h>'
   8 endif
   9
  10 ifeq ($(subdir),malloc)
  11 CFLAGS-malloc.c += -DMORECORE_CLEARS=2
  12 endif
  13
  14 ifeq ($(subdir),socket)
  15 sysdep_routines += internal_accept4 internal_recvmmsg internal_sendmmsg
  16 endif
  17
  18 ifeq ($(subdir),misc)
  19 include $(firstword $(wildcard $(sysdirs:=/sysctl.mk)))
  20
  21 sysdep_routines += clone llseek umount umount2 readahead \
  22                    setfsuid setfsgid makedev epoll_pwait signalfd \
  23                    eventfd eventfd_read eventfd_write prlimit
  24
  25 CFLAGS-gethostid.c = -fexceptions
  26 CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=0x80000000-__getpagesize()"
  27
  28 # Note that bits/mman-linux.h is listed here though the file lives in the
  29 # top-level bits/ subdirectory instead of here in sysdeps/.../linux/bits/.
  30 # That is just so that other (non-Linux) configurations for whom the
  31 # bits/mman-linux.h definitions work well do not have to duplicate the
  32 # contents of the file.  The file must still be listed in sysdep_headers
  33 # here and in any non-Linux configuration that uses it; other
  34 # configurations will not install the file.
  35 sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
  36                   sys/klog.h sys/kdaemon.h \
  37                   sys/user.h sys/prctl.h \
  38                   sys/kd.h sys/soundcard.h sys/vt.h \
  39                   sys/quota.h sys/fsuid.h \
  40                   scsi/sg.h scsi/scsi.h scsi/scsi_ioctl.h sys/pci.h \
  41                   sys/ultrasound.h sys/raw.h sys/personality.h sys/epoll.h \
  42                   bits/a.out.h sys/inotify.h sys/signalfd.h sys/eventfd.h \
  43                   sys/timerfd.h sys/fanotify.h bits/eventfd.h bits/inotify.h \
  44                   bits/signalfd.h bits/timerfd.h bits/epoll.h \
  45                   bits/socket_type.h bits/syscall.h bits/sysctl.h \
  46                   bits/mman-linux.h
  47
  48 tests += tst-clone tst-fanotify
  49
  50 # Generate the list of SYS_* macros for the system calls (__NR_* macros).
  51
  52 # If there is more than one syscall list for different architecture
  53 # variants, the CPU/Makefile defines abi-variants to be a list of names
  54 # for those variants (e.g. 32 64), and, for each variant, defines
  55 # abi-$(variant)-options to be compiler options to cause <asm/unistd.h>
  56 # to define the desired list of syscalls and abi-$(variant)-condition to
  57 # be the condition for those options to use in a C #if condition.
  58 # abi-includes may be defined to a list of headers to include
  59 # in the generated header, if the default does not suffice.
  60 #
  61 # The generated header is compiled with `-ffreestanding' to avoid any
  62 # circular dependencies against the installed implementation headers.
  63 # Such a dependency would require the implementation header to be
  64 # installed before the generated header could be built (See bug 15711).
  65 # In current practice the generated header dependencies do not include
  66 # any of the implementation headers removed by the use of `-ffreestanding'.
  67
  68 $(objpfx)bits/syscall%h $(objpfx)bits/syscall%d: ../sysdeps/unix/sysv/linux/sys/syscall.h
  69         $(make-target-directory)
  70         { \
  71          echo '/* Generated at libc build time from kernel syscall list.  */';\
  72          echo ''; \
  73          echo '#ifndef _SYSCALL_H'; \
  74          echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
  75          echo '#endif'; \
  76          echo ''; \
  77          $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
  78          echo ''; \
  79          $(if $(abi-variants), \
  80          $(foreach v,$(abi-variants),\
  81          $(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
  82                -x c $(sysincludes) $< $(abi-$(v)-options) \
  83                -D_LIBC -dM | \
  84          sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
  85          LC_ALL=C sort > $(@:.d=.h).new$(v); \
  86          $(if $(abi-$(v)-condition),\
  87          echo '#if $(abi-$(v)-condition)';) \
  88          cat $(@:.d=.h).new$(v); \
  89          $(if $(abi-$(v)-condition),echo '#endif';) \
  90          rm -f $(@:.d=.h).new$(v); \
  91          ), \
  92          $(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
  93                -x c $(sysincludes) $< \
  94                -D_LIBC -dM | \
  95          sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
  96          LC_ALL=C sort;) \
  97         } > $(@:.d=.h).new
  98         mv -f $(@:.d=.h).new $(@:.d=.h)
  99 ifdef abi-variants
 100 ifneq (,$(objpfx))
 101         sed $(sed-remove-objpfx) \
 102          $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v)) > $(@:.h=.d)-t3
 103 else
 104         cat $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v)) \
 105          > $(@:.h=.d)-t3
 106 endif
 107         rm -f $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v))
 108         mv -f $(@:.h=.d)-t3 $(@:.h=.d)
 109 else
 110         mv -f $(@:.h=.d)-t $(@:.h=.d)
 111 endif
 112
 113 ifndef no_deps
 114 # Get the generated list of dependencies (probably /usr/include/asm/unistd.h).
 115 -include $(objpfx)bits/syscall.d
 116 endif
 117 generated += bits/syscall.h bits/syscall.d
 118 endif
 119
 120 ifeq ($(subdir),time)
 121 sysdep_headers += sys/timex.h bits/timex.h
 122
 123 sysdep_routines += ntp_gettime ntp_gettimex
 124 endif
 125
 126 ifeq ($(subdir),socket)
 127 sysdep_headers += net/if_ppp.h net/ppp-comp.h \
 128                   net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \
 129                   net/if_slip.h net/if_packet.h net/if_shaper.h
 130 sysdep_routines += cmsg_nxthdr
 131 endif
 132
 133 ifeq ($(subdir),sunrpc)
 134 sysdep_headers += nfs/nfs.h
 135 endif
 136
 137 ifeq ($(subdir),termios)
 138 sysdep_headers += termio.h
 139 endif
 140
 141 ifeq ($(subdir),posix)
 142 sysdep_headers += bits/initspin.h
 143
 144 sysdep_routines += sched_getcpu
 145
 146 tests += tst-getcpu
 147
 148 CFLAGS-fork.c = $(libio-mtsafe)
 149 CFLAGS-getpid.o = -fomit-frame-pointer
 150 CFLAGS-getpid.os = -fomit-frame-pointer
 151 endif
 152
 153 ifeq ($(subdir),inet)
 154 sysdep_headers += netinet/if_fddi.h netinet/if_tr.h \
 155                   netipx/ipx.h netash/ash.h netax25/ax25.h netatalk/at.h \
 156                   netrom/netrom.h netpacket/packet.h netrose/rose.h \
 157                   neteconet/ec.h netiucv/iucv.h
 158 endif
 159
 160 # Don't compile the ctype glue code, since there is no old non-GNU C library.
 161 inhibit-glue = yes
 162
 163 ifeq ($(subdir),dirent)
 164 sysdep_routines += getdirentries getdirentries64
 165 endif
 166
 167 ifeq ($(subdir),nis)
 168 CFLAGS-ypclnt.c = -DUSE_BINDINGDIR=1
 169 endif
 170
 171 ifeq ($(subdir),io)
 172 sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
 173                    sync_file_range fallocate fallocate64
 174 sysdep_headers += bits/fcntl-linux.h
 175 endif
 176
 177 ifeq ($(subdir),elf)
 178 sysdep-rtld-routines += dl-brk dl-sbrk dl-getcwd dl-openat64 dl-opendir \
 179                         dl-fxstatat64
 180
 181 libof-lddlibc4 = lddlibc4
 182
 183 others += pldd
 184 install-bin += pldd
 185 $(objpfx)pldd: $(objpfx)xmalloc.o
 186 endif
 187
 188 ifeq ($(subdir),rt)
 189 CFLAGS-mq_send.c += -fexceptions
 190 CFLAGS-mq_receive.c += -fexceptions
 191 endif
 192
 193 ifeq ($(subdir),nscd)
 194 sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_SENDFILE -DHAVE_INOTIFY -DHAVE_NETLINK
 195 CFLAGS-gai.c += -DNEED_NETLINK
 196 endif
 197
 198 ifeq ($(subdir),nptl)
 199 tests += tst-setgetname
 200 endif