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glibc/sysdeps/unix/sysv/linux/Makefile
Adhemerval Zanella Netto ce2bfb8569 linux: Add posix_spawnattr_{get, set}cgroup_np (BZ 26371) 
These functions allow to posix_spawn and posix_spawnp to use
CLONE_INTO_CGROUP with clone3, allowing the child process to
be created in a different cgroup version 2.  These are GNU
extensions that are available only for Linux, and also only
for the architectures that implement clone3 wrapper
(HAVE_CLONE3_WRAPPER).

To create a process on a different cgroupv2, one can use the:

  posix_spawnattr_t attr;
  posix_spawnattr_init (&attr);
  posix_spawnattr_setflags (&attr, POSIX_SPAWN_SETCGROUP);
  posix_spawnattr_setcgroup_np (&attr, cgroup);
  posix_spawn (...)

Similar to other posix_spawn flags, POSIX_SPAWN_SETCGROUP control
whether the cgroup file descriptor will be used or not with
clone3.

There is no fallback if either clone3 does not support the flag
or if the architecture does not provide the clone3 wrapper, in
this case posix_spawn returns EOPNOTSUPP.

Checked on x86_64-linux-gnu.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
2023-09-05 13:08:48 -03:00

636 lines
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Makefile
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# Option to pass to Python scripts to set the C compiler. Rewriting
# MODULE_NAME is required to enable the _ISOMAC verbatim header
# environment.
sysdeps-linux-python-cc = \
--cc="$(CC) $(patsubst -DMODULE_NAME=%,-DMODULE_NAME=testsuite,$(CPPFLAGS))"
# Additional dependencies for Python scripts.
sysdeps-linux-python-deps = \
$(..)scripts/glibcextract.py \
$(..)sysdeps/unix/sysv/linux/glibcsyscalls.py \
# sysdeps-linux-python-deps
# Invocation of the Python interpreter with the Python search path.
sysdeps-linux-python = \
PYTHONPATH=$(..)scripts:$(..)sysdeps/unix/sysv/linux $(PYTHON)
ifndef subdir
# This target performs two actions:
#
# Replace <arch-syscall.h> with a file generated from kernel headers
# and <fixup-asm-unistd.h>. Both files are located via the sysdeps
# override search path.
#
# Update sysdeps/unix/sysv/linux/syscall-names.list with additional
# names found in the generated <arch-syscall.h> file, so that the
# global system call names list is a superset of the
# architecture-specific system call names.
#
# To bootstrap a new architecture, create an empty file in the right
# place and run `make update-syscall-lists' from the top-level of a
# configured, but not-yet-built glibc tree.
#
# --lock points to a file not replaced during the update operation, so
# that mutual exclusion is achieved.
.PHONY: update-syscall-lists
update-syscall-lists: arch-syscall.h
$(sysdeps-linux-python) \
sysdeps/unix/sysv/linux/update-syscall-lists.py \
$(sysdeps-linux-python-cc) \
--lock=sysdeps/unix/sysv/linux/update-syscall-lists.py $< \
sysdeps/unix/sysv/linux/syscall-names.list
endif
ifeq ($(subdir),csu)
sysdep_routines += \
errno-loc \
# sysdep_routines
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)
sysdep_routines += \
adjtimex \
clock_adjtime \
clone \
clone-internal \
clone3 \
closefrom_fallback \
convert_scm_timestamps \
epoll_create \
epoll_pwait \
epoll_pwait2 \
epoll_wait \
eventfd \
eventfd_read \
eventfd_write \
fanotify_mark \
fxstat \
fxstat64 \
fxstatat \
fxstatat64 \
inotify_init \
lxstat \
lxstat64 \
mlock2 \
mremap \
open_by_handle_at \
personality \
pkey_get \
pkey_mprotect \
pkey_set \
prctl \
prlimit \
prlimit64 \
process_vm_readv \
process_vm_writev \
pselect32 \
readahead \
setfsgid \
setfsuid \
signalfd \
splice \
sysctl \
tee \
timerfd_gettime \
timerfd_settime \
umount \
umount2 \
vmsplice \
xmknod \
xmknodat \
xstat \
xstat64 \
# sysdep_routines
CFLAGS-gethostid.c = -fexceptions
CFLAGS-tee.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-vmsplice.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-splice.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-open_by_handle_at.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-sync_file_range.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-pselect32.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=(0x80000000-sysconf(_SC_PAGESIZE))"
# The test triggers FORTIFY abortion due to purposely wrong parameters
CFLAGS-test-errno-linux.c += $(no-fortify-source)
sysdep_headers += \
bits/a.out.h \
bits/epoll.h \
bits/eventfd.h \
bits/inotify.h \
bits/mman-linux.h \
bits/mman-map-flags-generic.h \
bits/mman-shared.h \
bits/procfs-extra.h \
bits/procfs-id.h \
bits/procfs-prregset.h \
bits/procfs.h \
bits/pthread_stack_min-dynamic.h \
bits/pthread_stack_min.h \
bits/ptrace-shared.h \
bits/rseq.h \
bits/shmlba.h \
bits/siginfo-arch.h \
bits/siginfo-consts-arch.h \
bits/signalfd.h \
bits/socket_type.h \
bits/struct_stat.h \
bits/struct_stat_time64_helper.h \
bits/syscall.h \
bits/termios-baud.h \
bits/termios-c_cc.h \
bits/termios-c_cflag.h \
bits/termios-c_iflag.h \
bits/termios-c_lflag.h \
bits/termios-c_oflag.h \
bits/termios-misc.h \
bits/termios-struct.h \
bits/termios-tcflow.h \
bits/timerfd.h \
bits/types/struct_msqid64_ds.h \
bits/types/struct_msqid64_ds_helper.h \
bits/types/struct_semid64_ds.h \
bits/types/struct_semid64_ds_helper.h \
bits/types/struct_semid_ds.h \
bits/types/struct_shmid64_ds.h \
bits/types/struct_shmid64_ds_helper.h \
scsi/scsi.h \
scsi/scsi_ioctl.h \
scsi/sg.h \
sys/acct.h \
sys/epoll.h \
sys/eventfd.h \
sys/fanotify.h \
sys/fsuid.h \
sys/inotify.h \
sys/kd.h \
sys/klog.h \
sys/mount.h \
sys/pci.h \
sys/personality.h \
sys/pidfd.h \
sys/prctl.h \
sys/quota.h \
sys/raw.h \
sys/rseq.h \
sys/signalfd.h \
sys/soundcard.h \
sys/timerfd.h \
sys/user.h \
sys/vt.h \
# sysdep_headers
tests += \
test-errno-linux \
tst-adjtimex \
tst-clock_adjtime \
tst-clone \
tst-clone2 \
tst-clone3 \
tst-epoll \
tst-fanotify \
tst-getauxval \
tst-gettid \
tst-gettid-kill \
tst-memfd_create \
tst-misalign-clone \
tst-mlock2 \
tst-mount \
tst-ntp_adjtime \
tst-ntp_gettime \
tst-ntp_gettimex \
tst-ofdlocks \
tst-personality \
tst-pidfd \
tst-pkey \
tst-ppoll \
tst-prctl \
tst-process_mrelease \
tst-quota \
tst-rlimit-infinity \
tst-scm_rights \
tst-sigtimedwait \
tst-sync_file_range \
tst-sysconf-iov_max \
tst-sysvmsg-linux \
tst-sysvsem-linux \
tst-sysvshm-linux \
tst-tgkill \
tst-timerfd \
tst-ttyname-direct \
tst-ttyname-namespace \
# tests
# process_madvise requires CAP_SYS_ADMIN.
xtests += \
tst-process_madvise \
# xtests
# For +depfiles in Makerules.
extra-test-objs += \
tst-sysconf-iov_max-uapi.o \
# extra-test-objs
# Test for the symbol version of fcntl that was replaced in glibc 2.28.
ifeq ($(have-GLIBC_2.27)$(build-shared),yesyes)
tests += \
tst-ofdlocks-compat \
# tests
endif
tests-internal += \
tst-rseq \
tst-sigcontext-get_pc \
# tests-internal
tests-internal += \
tst-rseq-disable \
# tests-internal
tests-time64 += \
tst-adjtimex-time64 \
tst-clock_adjtime-time64 \
tst-epoll-time64 \
tst-ntp_adjtime-time64 \
tst-ntp_gettime-time64 \
tst-ntp_gettimex-time64 \
tst-ppoll-time64 \
tst-prctl-time64 \
tst-scm_rights-time64 \
tst-sigtimedwait-time64 \
tst-timerfd-time64 \
# tests-time64
tests-clone-internal = \
tst-align-clone-internal \
tst-clone2-internal \
tst-clone3-internal \
tst-getpid1-internal
# tests-clone-internal
tests-internal += \
$(tests-clone-internal) \
# tests-internal
tests-static += \
$(tests-clone-internal) \
# tests-static
CFLAGS-tst-sigcontext-get_pc.c = -fasynchronous-unwind-tables
# Generate the list of SYS_* macros for the system calls (__NR_*
# macros). The file syscall-names.list contains all possible system
# call names, and the generated header file produces SYS_* macros for
# the __NR_* macros which are actually defined.
generated += bits/syscall.h
$(objpfx)bits/syscall.h: \
../sysdeps/unix/sysv/linux/gen-syscall-h.awk \
../sysdeps/unix/sysv/linux/syscall-names.list
$(make-target-directory)
LC_ALL=C $(AWK) -f $^ > $@-tmp
$(move-if-change) $@-tmp $@
before-compile += $(objpfx)bits/syscall.h
# All macros defined by <sys/syscall.h>. Include <bits/syscall.h>
# explicitly because <sys/sycall.h> skips it if _LIBC is defined.
$(objpfx)tst-syscall-list-macros.list: \
$(objpfx)bits/syscall.h ../sysdeps/unix/sysv/linux/sys/syscall.h
printf '#include <linux/version.h>\n\
#include <sys/syscall.h>\n#include <bits/syscall.h>\n' | \
$(CC) -E -o $@-tmp $(CFLAGS) $(CPPFLAGS) -x c - -dM
$(move-if-change) $@-tmp $@
# __NR_* system call names. Used by the test below.
$(objpfx)tst-syscall-list-nr.list: \
../sysdeps/unix/sysv/linux/filter-nr-syscalls.awk \
$(objpfx)tst-syscall-list-macros.list
LC_ALL=C $(AWK) -f $^ > $@-tmp
$(move-if-change) $@-tmp $@
# SYS_* system call names. Used by the test below.
$(objpfx)tst-syscall-list-sys.list: $(objpfx)tst-syscall-list-macros.list
LC_ALL=C $(AWK) '/^#define SYS_/ { print substr($$2, 5) }' $< > $@-tmp
$(move-if-change) $@-tmp $@
tests-special += \
$(objpfx)tst-syscall-list.out
# tests-special
$(objpfx)tst-syscall-list.out: \
../sysdeps/unix/sysv/linux/tst-syscall-list.sh \
$(objpfx)tst-syscall-list-macros.list \
$(objpfx)tst-syscall-list-nr.list \
$(objpfx)tst-syscall-list-sys.list
$(BASH) $^ $(AWK) > $@; $(evaluate-test)
tests-special += \
$(objpfx)tst-glibcsyscalls.out
# tests-special
# arch-syscall.h is located via the sysdeps override search path.
$(objpfx)tst-glibcsyscalls.out: arch-syscall.h \
../sysdeps/unix/sysv/linux/syscall-names.list
$(sysdeps-linux-python) \
../sysdeps/unix/sysv/linux/tst-glibcsyscalls.py \
$(sysdeps-linux-python-cc) $< \
../sysdeps/unix/sysv/linux/syscall-names.list \
< /dev/null > $@ 2>&1; $(evaluate-test)
$(objpfx)tst-glibcsyscalls.out: \
../sysdeps/unix/sysv/linux/tst-glibcsyscalls.py \
$(sysdeps-linux-python-deps)
# Separate object file for access to the constant from the UAPI header.
$(objpfx)tst-sysconf-iov_max: $(objpfx)tst-sysconf-iov_max-uapi.o
tests-special += \
$(objpfx)tst-mman-consts.out \
# tests-special
$(objpfx)tst-mman-consts.out: ../sysdeps/unix/sysv/linux/tst-mman-consts.py
$(sysdeps-linux-python) \
../sysdeps/unix/sysv/linux/tst-mman-consts.py \
$(sysdeps-linux-python-cc) \
< /dev/null > $@ 2>&1; $(evaluate-test)
$(objpfx)tst-mman-consts.out: $(sysdeps-linux-python-deps)
tests-special += \
$(objpfx)tst-pidfd-consts.out \
# tests-special
$(objpfx)tst-pidfd-consts.out: ../sysdeps/unix/sysv/linux/tst-pidfd-consts.py
$(sysdeps-linux-python) \
../sysdeps/unix/sysv/linux/tst-pidfd-consts.py \
$(sysdeps-linux-python-cc) \
< /dev/null > $@ 2>&1; $(evaluate-test)
$(objpfx)tst-pidfd-consts.out: $(sysdeps-linux-python-deps)
tests-special += \
$(objpfx)tst-mount-consts.out \
# tests-special
$(objpfx)tst-mount-consts.out: ../sysdeps/unix/sysv/linux/tst-mount-consts.py
$(sysdeps-linux-python) \
../sysdeps/unix/sysv/linux/tst-mount-consts.py \
$(sysdeps-linux-python-cc) \
< /dev/null > $@ 2>&1; $(evaluate-test)
$(objpfx)tst-mount-consts.out: $(sysdeps-linux-python-deps)
tests-special += \
$(objpfx)tst-mount-compile.out \
# tests-special
$(objpfx)tst-mount-compile.out: ../sysdeps/unix/sysv/linux/tst-mount-compile.py
$(sysdeps-linux-python) \
../sysdeps/unix/sysv/linux/tst-mount-compile.py \
$(sysdeps-linux-python-cc) \
< /dev/null > $@ 2>&1; $(evaluate-test)
$(objpfx)tst-mount-compile.out: $(sysdeps-linux-python-deps)
tst-rseq-disable-ENV = GLIBC_TUNABLES=glibc.pthread.rseq=0
endif # $(subdir) == misc
ifeq ($(subdir),time)
sysdep_headers += \
bits/timex.h \
sys/timex.h \
# sysdep_headers
sysdep_routines += \
ntp_gettime \
ntp_gettimex \
# sysdep_routines
tests += \
tst-clock_gettime-clobber \
tst-gettimeofday-clobber \
tst-time-clobber \
# tests
endif
ifeq ($(subdir),signal)
tests-special += \
$(objpfx)tst-signal-numbers.out \
# tests-special
# Depending on signal.o* is a hack. What we actually want is a dependency
# on signal.h and everything it includes. That's impractical to write
# in this context, but signal.c includes signal.h and not much else so it'll
# be conservatively correct.
$(objpfx)tst-signal-numbers.out: \
../sysdeps/unix/sysv/linux/tst-signal-numbers.py \
$(objpfx)signal.o*
$(sysdeps-linux-python) \
../sysdeps/unix/sysv/linux/tst-signal-numbers.py \
$(sysdeps-linux-python-cc) \
< /dev/null > $@ 2>&1; $(evaluate-test)
$(objpfx)tst-signal-numbers.out: $(sysdeps-linux-python-deps)
endif
ifeq ($(subdir),socket)
sysdep_headers += \
bits/socket-constants.h \
net/ethernet.h \
net/if_arp.h \
net/if_packet.h \
net/if_ppp.h \
net/if_shaper.h \
net/if_slip.h \
net/ppp-comp.h \
net/ppp_defs.h \
net/route.h \
# sysdep_headers
sysdep_routines += \
cmsg_nxthdr \
# sysdep_routines
CFLAGS-recvmmsg.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-sendmmsg.c = -fexceptions -fasynchronous-unwind-tables
tests += \
tst-socket-timestamp \
tst-socket-timestamp-compat \
# tests
tests-time64 += \
tst-socket-timestamp-compat-time64 \
tst-socket-timestamp-time64 \
# tests-time64
tests-special += \
$(objpfx)tst-socket-consts.out \
# tests-special
$(objpfx)tst-socket-consts.out: ../sysdeps/unix/sysv/linux/tst-socket-consts.py
PYTHONPATH=../scripts \
$(PYTHON) ../sysdeps/unix/sysv/linux/tst-socket-consts.py \
--cc="$(CC) $(patsubst -DMODULE_NAME=%, \
-DMODULE_NAME=testsuite, \
$(CPPFLAGS)) -D_ISOMAC" \
< /dev/null > $@ 2>&1; $(evaluate-test)
endif # $(subdir) == socket
ifeq ($(subdir),sunrpc)
sysdep_headers += \
nfs/nfs.h \
# sysdep_headers
endif
ifeq ($(subdir),termios)
sysdep_headers += \
termio.h \
# sysdep_headers
endif
ifeq ($(subdir),posix)
sysdep_headers += \
bits/initspin.h \
# sysdep_headers
sysdep_routines += \
getcpu \
oldglob \
sched_getcpu \
spawnattr_getcgroup_np \
spawnattr_setcgroup_np \
# sysdep_routines
tests += \
tst-affinity \
tst-affinity-pid \
tst-spawn-cgroup \
# tests
tests-static += \
tst-affinity-static \
# tests-static
tests += \
$(tests-static) \
# tests
CFLAGS-fork.c = $(libio-mtsafe)
CFLAGS-getpid.o = -fomit-frame-pointer
CFLAGS-getpid.os = -fomit-frame-pointer
tst-spawn-cgroup-ARGS = -- $(host-test-program-cmd)
endif
ifeq ($(subdir),inet)
sysdep_headers += \
netash/ash.h \
netatalk/at.h \
netax25/ax25.h \
neteconet/ec.h \
netinet/if_fddi.h \
netinet/if_tr.h \
netipx/ipx.h \
netiucv/iucv.h \
netpacket/packet.h \
netrom/netrom.h \
netrose/rose.h \
# sysdep_headers
sysdep_routines += \
netlink_assert_response \
# sysdep_routines
CFLAGS-check_pf.c += -fexceptions
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 \
# sysdep_routines
tests += \
tst-getdents64 \
tst-readdir64-compat \
# tests
endif # $(subdir) == dirent
ifeq ($(subdir),nis)
CFLAGS-ypclnt.c = -DUSE_BINDINGDIR=1
endif
ifeq ($(subdir),io)
sysdep_routines += \
close_nocancel \
fallocate \
fallocate64 \
fcntl_nocancel \
internal_statvfs \
open64_nocancel \
open_nocancel \
openat64_nocancel \
openat_nocancel \
pread64_nocancel \
read_nocancel \
stat_t64_cp \
statx_cp \
sync_file_range \
write_nocancel \
xstatconv \
# sysdep_routines
sysdep_headers += \
bits/fcntl-linux.h \
# sysdep_headers
tests += \
tst-fallocate \
tst-fallocate64 \
tst-getcwd-smallbuff \
tst-o_path-locks \
# tests
endif
ifeq ($(subdir),elf)
sysdep-rtld-routines += \
dl-brk \
dl-getcwd \
dl-openat64 \
dl-opendir \
dl-sbrk \
# sysdep-rtld-routines
others += \
pldd \
# others
install-bin += \
pldd \
# install-bin
$(objpfx)pldd: $(objpfx)xmalloc.o
endif
ifeq ($(subdir),rt)
CFLAGS-mq_send.c += -fexceptions
CFLAGS-mq_receive.c += -fexceptions
endif
ifeq ($(subdir),nscd)
sysdep-CFLAGS += -DHAVE_EPOLL -DHAVE_INOTIFY -DHAVE_NETLINK
CFLAGS-gai.c += -DNEED_NETLINK
endif
ifeq ($(subdir),nptl)
tests += \
tst-align-clone \
tst-getpid1 \
# tests
# tst-rseq-nptl is an internal test because it requires a definition of
# __NR_rseq from the internal system call list.
tests-internal += \
tst-rseq-nptl \
# tests-internal
endif
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