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),misc)
  15 include $(firstword $(wildcard $(sysdirs:=/sysctl.mk)))
  16
  17 sysdep_routines += clone llseek umount umount2 readahead \
  18                    setfsuid setfsgid makedev epoll_pwait signalfd \
  19                    eventfd eventfd_read eventfd_write prlimit
  20
  21 CFLAGS-gethostid.c = -fexceptions
  22 CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=0x80000000-__getpagesize()"
  23
  24 # Note that bits/mman-linux.h is listed here though the file lives in the
  25 # top-level bits/ subdirectory instead of here in sysdeps/.../linux/bits/.
  26 # That is just so that other (non-Linux) configurations for whom the
  27 # bits/mman-linux.h definitions work well do not have to duplicate the
  28 # contents of the file.  The file must still be listed in sysdep_headers
  29 # here and in any non-Linux configuration that uses it; other
  30 # configurations will not install the file.
  31 sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
  32                   sys/klog.h sys/kdaemon.h \
  33                   sys/user.h sys/prctl.h \
  34                   sys/kd.h sys/soundcard.h sys/vt.h \
  35                   sys/quota.h sys/fsuid.h \
  36                   scsi/sg.h scsi/scsi.h scsi/scsi_ioctl.h sys/pci.h \
  37                   sys/ultrasound.h sys/raw.h sys/personality.h sys/epoll.h \
  38                   bits/a.out.h sys/inotify.h sys/signalfd.h sys/eventfd.h \
  39                   sys/timerfd.h sys/fanotify.h bits/eventfd.h bits/inotify.h \
  40                   bits/signalfd.h bits/timerfd.h bits/epoll.h \
  41                   bits/socket_type.h bits/syscall.h bits/sysctl.h \
  42                   bits/mman-linux.h
  43
  44 tests += tst-clone tst-fanotify
  45
  46 # Generate the list of SYS_* macros for the system calls (__NR_* macros).
  47
  48 # If there is more than one syscall list for different architecture
  49 # variants, the CPU/Makefile defines abi-variants to be a list of names
  50 # for those variants (e.g. 32 64), and, for each variant, defines
  51 # abi-$(variant)-options to be compiler options to cause <asm/unistd.h>
  52 # to define the desired list of syscalls and abi-$(variant)-condition to
  53 # be the condition for those options to use in a C #if condition.
  54 # abi-includes may be defined to a list of headers to include
  55 # in the generated header, if the default does not suffice.
  56 #
  57 # The generated header is compiled with `-ffreestanding' to avoid any
  58 # circular dependencies against the installed implementation headers.
  59 # Such a dependency would require the implementation header to be
  60 # installed before the generated header could be built (See bug 15711).
  61 # In current practice the generated header dependencies do not include
  62 # any of the implementation headers removed by the use of `-ffreestanding'.
  63
  64 $(objpfx)bits/syscall%h $(objpfx)bits/syscall%d: ../sysdeps/unix/sysv/linux/sys/syscall.h
  65         $(make-target-directory)
  66         { \
  67          echo '/* Generated at libc build time from kernel syscall list.  */';\
  68          echo ''; \
  69          echo '#ifndef _SYSCALL_H'; \
  70          echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
  71          echo '#endif'; \
  72          echo ''; \
  73          $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
  74          echo ''; \
  75          $(if $(abi-variants), \
  76          $(foreach v,$(abi-variants),\
  77          $(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
  78                -x c $(sysincludes) $< $(abi-$(v)-options) \
  79                -D_LIBC -dM | \
  80          sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
  81          LC_ALL=C sort > $(@:.d=.h).new$(v); \
  82          $(if $(abi-$(v)-condition),\
  83          echo '#if $(abi-$(v)-condition)';) \
  84          cat $(@:.d=.h).new$(v); \
  85          $(if $(abi-$(v)-condition),echo '#endif';) \
  86          rm -f $(@:.d=.h).new$(v); \
  87          ), \
  88          $(CC) -ffreestanding -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
  89                -x c $(sysincludes) $< \
  90                -D_LIBC -dM | \
  91          sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
  92          LC_ALL=C sort;) \
  93         } > $(@:.d=.h).new
  94         mv -f $(@:.d=.h).new $(@:.d=.h)
  95 ifdef abi-variants
  96 ifneq (,$(objpfx))
  97         sed $(sed-remove-objpfx) \
  98          $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v)) > $(@:.h=.d)-t3
  99 else
 100         cat $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v)) \
 101          > $(@:.h=.d)-t3
 102 endif
 103         rm -f $(foreach v,$(abi-variants),$(@:.h=.d)-t$(v))
 104         mv -f $(@:.h=.d)-t3 $(@:.h=.d)
 105 else
 106         mv -f $(@:.h=.d)-t $(@:.h=.d)
 107 endif
 108
 109 ifndef no_deps
 110 # Get the generated list of dependencies (probably /usr/include/asm/unistd.h).
 111 -include $(objpfx)bits/syscall.d
 112 endif
 113 generated += bits/syscall.h bits/syscall.d
 114 endif
 115
 116 ifeq ($(subdir),time)
 117 sysdep_headers += sys/timex.h bits/timex.h
 118
 119 sysdep_routines += ntp_gettime ntp_gettimex
 120 endif
 121
 122 ifeq ($(subdir),socket)
 123 sysdep_headers += net/if_ppp.h net/ppp-comp.h \
 124                   net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \
 125                   net/if_slip.h net/if_packet.h net/if_shaper.h
 126 sysdep_routines += cmsg_nxthdr
 127 endif
 128
 129 ifeq ($(subdir),sunrpc)
 130 sysdep_headers += nfs/nfs.h
 131 endif
 132
 133 ifeq ($(subdir),termios)
 134 sysdep_headers += termio.h
 135 endif
 136
 137 ifeq ($(subdir),posix)
 138 sysdep_headers += bits/initspin.h
 139
 140 sysdep_routines += sched_getcpu
 141
 142 tests += tst-getcpu
 143
 144 CFLAGS-fork.c = $(libio-mtsafe)
 145 CFLAGS-getpid.o = -fomit-frame-pointer
 146 CFLAGS-getpid.os = -fomit-frame-pointer
 147 endif
 148
 149 ifeq ($(subdir),inet)
 150 sysdep_headers += netinet/if_fddi.h netinet/if_tr.h \
 151                   netipx/ipx.h netash/ash.h netax25/ax25.h netatalk/at.h \
 152                   netrom/netrom.h netpacket/packet.h netrose/rose.h \
 153                   neteconet/ec.h netiucv/iucv.h
 154 endif
 155
 156 # Don't compile the ctype glue code, since there is no old non-GNU C library.
 157 inhibit-glue = yes
 158
 159 ifeq ($(subdir),dirent)
 160 sysdep_routines += getdirentries getdirentries64
 161 endif
 162
 163 ifeq ($(subdir),nis)
 164 CFLAGS-ypclnt.c = -DUSE_BINDINGDIR=1
 165 endif
 166
 167 ifeq ($(subdir),io)
 168 sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
 169                    sync_file_range fallocate fallocate64
 170 sysdep_headers += bits/fcntl-linux.h
 171 endif
 172
 173 ifeq ($(subdir),elf)
 174 sysdep-rtld-routines += dl-brk dl-sbrk dl-getcwd dl-openat64 dl-opendir \
 175                         dl-fxstatat64
 176
 177 libof-lddlibc4 = lddlibc4
 178
 179 others += pldd
 180 install-bin += pldd
 181 $(objpfx)pldd: $(objpfx)xmalloc.o
 182 endif
 183
 184 ifeq ($(subdir),rt)
 185 CFLAGS-mq_send.c += -fexceptions
 186 CFLAGS-mq_receive.c += -fexceptions
 187 endif
 188
 189 ifeq ($(subdir),nscd)
 190 sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_SENDFILE -DHAVE_INOTIFY -DHAVE_NETLINK
 191 CFLAGS-gai.c += -DNEED_NETLINK
 192 endif
 193
 194 ifeq ($(subdir),nptl)
 195 tests += tst-setgetname tst-align-clone tst-getpid1 tst-getpid2
 196
 197 # In this test, we create a CLONE_VM "thread" that shares TLS storage
 198 # with the original thread. Both threads then race in ld.so with lazy PLT
 199 # resolution. Avoid this race by disabling lazy binding. BZ #11214.
 200 tst-getpid2-ENV = LD_BIND_NOW=1
 201 endif