sysdeps/mach/hurd/Makefile

   1 # Copyright (C) 1993-2024 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   4 # The GNU C Library is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU Lesser General Public
   6 # License as published by the Free Software Foundation; either
   7 # version 2.1 of the License, or (at your option) any later version.
   8
   9 # The GNU C Library is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # Lesser General Public License for more details.
  13
  14 # You should have received a copy of the GNU Lesser General Public
  15 # License along with the GNU C Library; if not, see
  16 # <https://www.gnu.org/licenses/>.
  17
  18 ifdef in-Makerules
  19
  20 # Look for header files in hurd/ under the top-level library source directory.
  21 # Look for generated header files where they get created.
  22 includes += -I$(..)hurd -I$(common-objpfx)hurd/
  23
  24 # We use the style `if (err = call(...))' a lot in the Hurd code,
  25 # where we have a lot of functions that return zero or an errno code.
  26 +cflags += -Wno-parentheses
  27
  28 # Do not use any assembly code from sysdeps/unix (and subdirectories).
  29 # This bypasses all the system call stubs and uses any existing posix or
  30 # generic C files instead.
  31 inhibit-sysdep-asm += unix.*
  32 inhibit-unix-syscalls = yes
  33
  34 # Don't try to generate anything from the installed Unix system and its
  35 # libraries.  That is only of use when building for a Unix system, so as to
  36 # be compatible with some existing binaries for that system.
  37 inhibit-glue = yes
  38
  39 ifeq (,$(filter mach hurd,$(subdir)))
  40 # Subdirectories other than hurd/ might use the generated Hurd headers.
  41 # So make sure we get a chance to run in hurd/ to make them before all else.
  42 # (But we don't want to do this in mach/, because hurd/ needs some things
  43 # there, and we know mach/ doesn't need anything from hurd/.)
  44
  45 hurd-objpfx = $(common-objpfx)hurd/
  46
  47 # These are all the generated headers that <hurd.h> includes.
  48 before-compile += $(patsubst %,$(hurd-objpfx)hurd/%.h,auth io fs process)
  49 $(patsubst %,$(hurd-objpfx)hurd/%.h,auth io fs process): hurd-before-compile
  50 .PHONY: hurd-before-compile
  51 hurd-before-compile: $(common-objpfx)mach/mach-shortcuts.h
  52         $(MAKE) -C $(..)hurd subdir=hurd before-compile no_deps=t
  53 endif
  54
  55 # Hurd profil.c includes this file, so give a rule to make it.
  56 ifeq ($(subdir),gmon)
  57 $(common-objpfx)hurd/../mach/RPC_task_get_sampled_pcs.c:
  58         $(MAKE) -C $(..)mach subdir=mach before-compile no_deps=t
  59 endif
  60
  61 \f
  62 # Generate bits/errno.h from the section of the manual that lists all the errno
  63 # codes.
  64
  65 errno.texinfo = $(..)manual/errno.texi
  66
  67 hurd = $(..)sysdeps/mach/hurd
  68
  69 mach-errno-h = \
  70              mach/message.h \
  71              mach/kern_return.h \
  72              mach/mig_errors.h \
  73              device/device_types.h
  74
  75 # We use the compiler to generate a list of absolute file names for
  76 # the headers we want to search for Mach error codes, listed above (and
  77 # incidentally, all other headers those include).
  78 -include $(common-objpfx)errnos.d
  79 $(common-objpfx)errnos.d: $(mach-errnos-deps)
  80         echo -n "mach-errnos-deps := " > $@t
  81         for h in $(mach-errno-h) ; do \
  82                 echo "#include <$$h>" \
  83                 | $(CC) $(CFLAGS) \
  84                     $(subst -include $(common-objpfx)libc-modules.h,,$(CPPFLAGS)) \
  85                     -M -x c - \
  86                 | sed $(sed-remove-objpfx) \
  87                     -e 's, \.\./, $(..),g' \
  88                     -e 's,\\$$,,g' \
  89                     -e 's, ,\n,g' \
  90                 | grep "$$h$$" \
  91                 | tr '\n' ' ' \
  92                   >> $@t ; \
  93         done
  94         echo >> $@t
  95         mv -f $@t $@
  96
  97 $(hurd)/bits/errno.h: $(common-objpfx)stamp-errnos ;
  98 $(common-objpfx)stamp-errnos: $(hurd)/errnos.awk $(errno.texinfo) \
  99                               $(mach-errnos-deps) $(common-objpfx)errnos.d
 100         mkdir -p $(hurd-objpfx)bits
 101         $(AWK) -f $^ > $(hurd-objpfx)bits/errno.h-tmp
 102 # Make it unwritable so no one will edit it by mistake.
 103         -chmod a-w $(hurd-objpfx)bits/errno.h-tmp
 104         $(move-if-change) $(hurd-objpfx)bits/errno.h-tmp $(hurd)/bits/errno.h
 105         touch $@
 106
 107 common-generated += errnos.d stamp-errnos
 108 \f
 109 # We install the real libc.a as libcrt.a and as libc.a we install a linker
 110 # script which does -( -lcrt -lmachuser -lhurduser -).
 111
 112 libc-name = crt
 113
 114 ifeq (,$(subdir))
 115 install-others += $(inst_libdir)/libc.a
 116 $(inst_libdir)/libc.a: $(hurd)/libc-ldscript $(+force); $(do-install)
 117 ifeq (yes,$(build-profile))
 118 install-others += $(inst_libdir)/libc_p.a
 119 $(inst_libdir)/libc_p.a: $(hurd)/libc_p-ldscript $(+force); $(do-install)
 120 endif
 121 endif
 122
 123 # Make sure these are used to build the libc.so shared object too.  There
 124 # is a circular dependency between each of these shared objects and libc
 125 # (many high-level libc functions call stubs, stubs call low-level libc
 126 # functions like memcpy and mach_msg).  This works out fine at run time
 127 # (all the objects are loaded before resolving their symbols, so these
 128 # interdependencies are fine).  But to create the shared objects we must
 129 # link them one at a time; since each needs one or both of the others to
 130 # produce its DT_NEEDED entries and to assign its undefined symbols the
 131 # right symbol versions, we can't do any of them before the others!  To
 132 # get around this, we link each lib*user.so shared object twice.  First,
 133 # we link an object without reference to libc.so (since we haven't linked
 134 # libc.so yet), so it lacks a DT_NEEDED record for the libc soname it
 135 # depends on, and its undefined symbol references lack the symbol version
 136 # assignments they should have.  We will use this shared object solely to
 137 # link libc.so against it; that gives libc.so the proper DT_NEEDED record,
 138 # and symbol versions assignments (if the lib*user.so object is using them).
 139 # Finally we link a second version of the same lib*user.so shared object,
 140 # this time linked normally against libc so it gets a proper DT_NEEDED
 141 # record and symbol version set; this one can be installed for run-time use.
 142 rpcuserlibs := $(common-objpfx)mach/libmachuser.so \
 143                $(common-objpfx)hurd/libhurduser.so
 144 link-rpcuserlibs := $(rpcuserlibs:%user.so=%user-link.so)
 145 $(common-objpfx)libc.so: $(link-rpcuserlibs)
 146 $(common-objpfx)linkobj/libc.so: $(link-rpcuserlibs)
 147 rpath-dirs += mach hurd
 148
 149 # Make sure the `lib' pass builds the dummy shared objects so
 150 # we can link libc against them.
 151 ifeq (mach,$(subdir))
 152 lib-noranlib: $(common-objpfx)mach/libmachuser-link.so
 153 endif
 154 ifeq (hurd,$(subdir))
 155 lib-noranlib: $(common-objpfx)hurd/libhurduser-link.so
 156 endif
 157
 158 $(link-rpcuserlibs): %-link.so: %_pic.a
 159 # These shared objects are just for the purpose of linking libc,
 160 # so they don't need abi-note.o linked into them.
 161         $(build-shlib-helper) \
 162                 -nostdlib -o $@ \
 163                 -Wl,-soname=$(*F).so$($(*F).so-version) \
 164                 $(build-shlib-objlist)
 165 libmachuser-link.so-no-z-defs = yes
 166 libhurduser-link.so-no-z-defs = yes
 167
 168 # And get them into the libc.so ldscript.
 169 $(inst_libdir)/libc.so: $(rpcuserlibs)
 170
 171 # The RPC stubs from these libraries are needed in building the dynamic
 172 # linker, too.  It must be self-contained, so we link the needed PIC
 173 # objects directly into the shared object.
 174 ifeq (elf,$(subdir))
 175 $(objpfx)librtld.map: $(rpcuserlibs:.so=_pic.a)
 176
 177 CFLAGS-dl-load.c = -DEXTERNAL_MAP_FROM_FD
 178 endif
 179
 180 # Override the generic Makeconfig values so we link against the RPC libs.
 181 link-libc-static := -Wl,--start-group \
 182                     $(patsubst %,$(common-objpfx)%.a,\
 183                                libc mach/libmachuser hurd/libhurduser) \
 184                     $(static-gnulib) -Wl,--end-group
 185 link-libc-static-tests := -Wl,--start-group \
 186                     $(patsubst %,$(common-objpfx)%.a,\
 187                                libc mach/libmachuser hurd/libhurduser) \
 188                     $(static-gnulib-tests) -Wl,--end-group
 189 \f
 190 ifeq ($(subdir),csu)
 191
 192 extra-objs += static-start.o
 193
 194 # We need special startup code for statically linked binaries.
 195 $(objpfx)crt0.o: $(objpfx)static-start.o $(objpfx)abi-note.o $(objpfx)init.o $(objpfx)static-reloc.o
 196         $(link-relocatable)
 197 $(objpfx)rcrt0.o: $(objpfx)static-start.o $(objpfx)abi-note.o $(objpfx)init.o
 198         $(link-relocatable)
 199
 200 endif
 201 \f
 202 ifeq (hurd, $(subdir))
 203 sysdep_routines += cthreads
 204 endif
 205
 206 ifeq (elf, $(subdir))
 207 sysdep-dl-routines += dl-tls-initialized
 208 endif
 209
 210 ifeq (io, $(subdir))
 211 sysdep_routines += f_setlk close_nocancel close_nocancel_nostatus \
 212                    fcntl_nocancel open_nocancel openat_nocancel read_nocancel \
 213                    pread64_nocancel write_nocancel pwrite64_nocancel \
 214                    wait4_nocancel \
 215                    xstat fxstat lxstat xstat64 fxstat64 lxstat64 \
 216                    xmknod xmknodat \
 217                    fxstatat fxstatat64
 218
 219 sysdep_headers += bits/types/struct_flock.h
 220 endif
 221
 222 ifeq (misc, $(subdir))
 223 sysdep_routines += writev_nocancel writev_nocancel_nostatus mremap
 224 endif
 225
 226 ifeq ($(subdir),sunrpc)
 227 sysdep_headers += nfs/nfs.h
 228 endif
 229
 230 ifeq ($(subdir),socket)
 231 sysdep_headers += net/ethernet.h net/if_arp.h net/if_ether.h net/route.h
 232 endif
 233
 234 ifeq ($(subdir),nis)
 235 CFLAGS-ypclnt.c += -DUSE_BINDINGDIR=1
 236 endif
 237
 238 LDLIBS-pthread.so += $(objdir)/hurd/libhurduser.so
 239 LDLIBS-c_malloc_debug.so += $(link-rpcuserlibs)
 240
 241 endif   # in-Makerules
 242
 243 # For bug 23286
 244 ifeq ($(subdir),hurd)
 245 test-xfail-check-abi-libhurduser = yes
 246 endif
 247 ifeq ($(subdir),mach)
 248 test-xfail-check-abi-libmachuser = yes
 249 endif
 250
 251 # For bug 25521
 252 # (setpshared support)
 253 ifeq ($(subdir),malloc)
 254 test-xfail-tst-mallocfork2 = yes
 255 test-xfail-tst-mallocfork2-mcheck = yes
 256 test-xfail-tst-mallocfork2-malloc-check = yes
 257 test-xfail-tst-mallocfork2-malloc-hugetlb1 = yes
 258 test-xfail-tst-mallocfork2-malloc-hugetlb2 = yes
 259 endif
 260 ifeq ($(subdir),htl)
 261 test-xfail-tst-mutex4 = yes
 262 test-xfail-tst-cancel16 = yes
 263 test-xfail-tst-cancelx16 = yes
 264 test-xfail-tst-cond4 = yes
 265 test-xfail-tst-cond6 = yes
 266 test-xfail-tst-cond12 = yes
 267 test-xfail-tst-cond13 = yes
 268 test-xfail-tst-cond23 = yes
 269 test-xfail-tst-rwlock4 = yes
 270 test-xfail-tst-rwlock12 = yes
 271 test-xfail-tst-barrier2 = yes
 272 test-xfail-tst-pututxline-cache = yes
 273 test-xfail-tst-pututxline-lockfail = yes
 274 test-xfail-tst-flock2 = yes
 275 test-xfail-tst-signal1 = yes
 276 test-xfail-tst-signal2 = yes
 277 endif
 278
 279 ifeq ($(subdir),htl)
 280 # For bug 25522
 281 # (setprotocol support)
 282 test-xfail-tst-cond24 = yes
 283 test-xfail-tst-cond25 = yes
 284
 285 # For bug 25563
 286 # (robust support against dead threads)
 287 test-xfail-tst-robust1 = yes
 288 test-xfail-tst-robust2 = yes
 289 test-xfail-tst-robust3 = yes
 290 test-xfail-tst-robust4 = yes
 291 test-xfail-tst-robust5 = yes
 292 test-xfail-tst-robust6 = yes
 293 test-xfail-tst-robust7 = yes
 294 test-xfail-tst-robust9 = yes
 295 endif
 296
 297 ifeq ($(subdir),elf)
 298 # We do use nested functions involving creation of trampolines, notably for
 299 # callbacks whose parameters don't permit to get the context parameters.
 300 check-execstack-xfail += ld.so libc.so libpthread.so
 301 # We always create a thread for signals
 302 test-xfail-tst-single_threaded-pthread-static = yes
 303 endif
 304
 305 # For bug 30166
 306 # (missing RLIMIT_AS support)
 307 ifeq ($(subdir),malloc)
 308 tests-unsupported += tst-malloc-thread-fail
 309 tests-unsupported += tst-malloc-thread-fail-malloc-check
 310 tests-unsupported += tst-malloc-thread-fail-mcheck
 311 tests-unsupported += tst-malloc-thread-fail-malloc-hugetlb1
 312 tests-unsupported += tst-malloc-thread-fail-malloc-hugetlb2
 313 tests-unsupported += tst-dynarray-fail
 314 endif
 315
 316 # For bug 30167
 317 # (select requests overflow)
 318 ifeq ($(subdir),htl)
 319 tests-unsupported += tst-pthread_cancel-select-loop
 320 endif
 321
 322 # For bug 30168
 323 # (audit tests hang)
 324 ifeq ($(subdir),elf)
 325 tests-unsupported += tst-audit14
 326 tests-unsupported += tst-audit14a
 327 tests-unsupported += tst-audit15
 328 tests-unsupported += tst-audit16
 329 tests-unsupported += tst-audit17
 330 endif
 331
 332 # For bug 30341
 333 ifeq ($(subdir),posix)
 334 tests-unsupported += tst-spawn6
 335 endif
 336
 337 # For bug 30342
 338 ifeq ($(subdir),io)
 339 tests-unsupported += test-lfs
 340 endif