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e7190fc73d
glibc/sysdeps/unix/sysv/linux/Makefile
Adhemerval Zanella Netto e7190fc73d linux: Add pidfd_getpid 
This interface allows to obtain the associated process ID from the
process file descriptor.  It is done by parsing the procps fdinfo
information.  Its prototype is:

   pid_t pidfd_getpid (int fd)

It returns the associated pid or -1 in case of an error and sets the
errno accordingly.  The possible errno values are those from open, read,
and close (used on procps parsing), along with:

   - EBADF if the FD is negative, does not have a PID associated, or if
     the fdinfo fields contain a value larger than pid_t.

   - EREMOTE if the PID is in a separate namespace.

   - ESRCH if the process is already terminated.

Checked on x86_64-linux-gnu on Linux 4.15 (no CLONE_PIDFD or waitid
support), Linux 5.4 (full support), and Linux 6.2.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
2023-09-05 13:08:59 -03:00

657 lines
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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 \
clone-pidfd-support \
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-pidfd_getpid \
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 \
pidfd_getpid \
pidfd_spawn \
pidfd_spawnp \
procutils \
sched_getcpu \
spawnattr_getcgroup_np \
spawnattr_setcgroup_np \
# sysdep_routines
tests += \
tst-affinity \
tst-affinity-pid \
tst-posix_spawn-setsid-pidfd \
tst-spawn-cgroup \
tst-spawn-chdir-pidfd \
tst-spawn-pidfd \
tst-spawn2-pidfd \
tst-spawn3-pidfd \
tst-spawn4-pidfd \
tst-spawn5-pidfd \
tst-spawn6-pidfd \
tst-spawn7-pidfd \
# tests
tests-static += \
tst-affinity-static \
# tests-static
tests += \
$(tests-static) \
# tests
CFLAGS-fork.c = $(libio-mtsafe)
CFLAGS-getpid.o = -fomit-frame-pointer
CFLAGS-getpid.os = -fomit-frame-pointer
CFLAGS-tst-spawn3-pidfd.c += -DOBJPFX=\"$(objpfx)\"
tst-spawn-cgroup-ARGS = -- $(host-test-program-cmd)
tst-spawn-pidfd-ARGS = -- $(host-test-program-cmd)
tst-spawn5-pidfd-ARGS = -- $(host-test-program-cmd)
tst-spawn6-pidfd-ARGS = -- $(host-test-program-cmd)
tst-spawn7-pidfd-ARGS = -- $(host-test-program-cmd)
tst-posix_spawn-setsid-pidfd-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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