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