Adhemerval Zanella 882d6e17bc posix: Add posix_spawn_file_actions_addclosefrom_np ... This patch adds a way to close a range of file descriptors on posix_spawn as a new file action. The API is similar to the one provided by Solaris 11 [1], where the file action causes the all open file descriptors greater than or equal to input on to be closed when the new process is spawned. The function posix_spawn_file_actions_addclosefrom_np is safe to be implemented by iterating over /proc/self/fd, since the Linux spawni.c helper process does not use CLONE_FILES, so its has own file descriptor table and any failure (in /proc operation) aborts the process creation and returns an error to the caller. I am aware that this file action might be redundant to the current approach of POSIX in promoting O_CLOEXEC in more interfaces. However O_CLOEXEC is still not the default and for some specific usages, the caller needs to close all possible file descriptors to avoid them leaking. Some examples are CPython (discussed in BZ#10353) and OpenJDK jspawnhelper [2] (where OpenJDK spawns a helper process to exactly closes all file descriptors). Most likely any environment which calls functions that might open file descriptor under the hood and aim to use posix_spawn might face the same requirement. Checked on x86_64-linux-gnu and i686-linux-gnu on kernel 5.11 and 4.15. [1] https://docs.oracle.com/cd/E36784_01/html/E36874/posix-spawn-file-actions-addclosefrom-np-3c.html [2] https://github.com/openjdk/jdk/blob/master/src/java.base/unix/native/libjava/childproc.c#L82		2021-07-08 14:08:15 -03:00
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net	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
netinet	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
nfs	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sys	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Makefile	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
_G_config.h	…
_itoa.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
a.out.h	…
abort-instr.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
adaptive_spin_count.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
aio_misc.h	Linux: Cleanups after librt move	2021-06-28 09:51:01 +02:00
allocalim.h	…
arch-fd_to_filename.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
asm-syntax.h	…
atomic-machine.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
c++-types.data	…
confstr.h	…
crti.S	…
crtn.S	…
device-nrs.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dirstream.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-auxv.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-cache.h	ldconfig/x86: Store ISA level in cache and aux cache	2021-01-13 05:51:17 -08:00
dl-dtprocnum.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-dtv.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-fcntl.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-fileid.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-fptr.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-hash.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-hwcap-check.h	elf: Add hook for checking HWCAP bits after auxiliary vector parsing	2021-05-19 11:09:57 +02:00
dl-irel.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-isa-level.h	ldconfig/x86: Store ISA level in cache and aux cache	2021-01-13 05:51:17 -08:00
dl-librecon.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-lookupcfg.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-machine.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-mman.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-osinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-procinfo.c	…
dl-procinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-procruntime.c	…
dl-prop.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-sysdep.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-tls.h	…
dl-unistd.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-vdso-setup.c	…
dl-vdso-setup.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-vdso.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dwarf2.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
elf-initfini.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
elf-read-prop.h	ldconfig/x86: Store ISA level in cache and aux cache	2021-01-13 05:51:17 -08:00
elf_machine_sym_no_match.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
elide.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
eloop-threshold.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
entry.h	…
errqueue.h	…
fd_to_filename.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
features-time64.h	y2038: Add support for 64-bit time on legacy ABIs	2021-06-15 10:42:11 -03:00
fenv_private.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
fips-private.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
fix-fp-int-compare-invalid.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
fix-fp-int-convert-overflow.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
fix-int-fp-convert-zero.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
float128-abi.h	…
fork.h	posix: Consolidate fork implementation	2021-06-24 10:02:06 -03:00
fpu_control.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
framestate.c	__frame_state_for: Use <unwind-link.h> for unwinder access	2021-03-01 15:59:36 +01:00
gcc-compat.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
gccframe.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
get-rounding-mode.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
gmp-mparam.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
hp-timing-common.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
hp-timing.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ifreq.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ifunc-init.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ifunc-sel.h	…
internal-signals.h	nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin	2021-03-26 13:37:18 -03:00
intr-msg.h	…
ld.abilist	…
ldbl-classify-compat.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ldconfig.h	ldconfig/x86: Store ISA level in cache and aux cache	2021-01-13 05:51:17 -08:00
ldsodefs.h	dlfcn: Rework static dlopen hooks	2021-06-03 09:12:05 +02:00
libBrokenLocale.abilist	…
libanl.abilist	…
libc-lock.h	Remove pthread_key_create-related internals from libc-lock.h	2021-04-21 19:49:51 +02:00
libc-mmap.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libc-mtag.h	malloc: Only support zeroing and not arbitrary memset with mtag	2021-03-26 11:03:06 +00:00
libc-start.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libc-symver.h	Support for multiple versions in versioned_symbol, compat_symbol	2021-03-25 12:33:02 +01:00
libc-tsd.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libc.abilist	Make sysdeps/generic/libc.abilist empty	2021-05-13 21:28:17 +00:00
libc_start_call_main.h	csu: Move calling main out of __libc_start_main_impl	2021-04-21 19:49:50 +02:00
libcrypt.abilist	…
libdl.abilist	…
libm-alias-double.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libm-alias-float.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libm-alias-float128.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libm-alias-ldouble.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libm-test-ulps	…
libm-test-ulps-name	…
libm.abilist	…
libnsl.abilist	…
libnss_compat.abilist	…
libnss_db.abilist	…
libnss_dns.abilist	…
libnss_files.abilist	…
libnss_hesiod.abilist	…
libnss_nis.abilist	…
libnss_nisplus.abilist	…
libpthread.abilist	…
libresolv.abilist	…
librt.abilist	…
libutil.abilist	…
link_map.h	…
linkmap.h	…
local-setxid.h	…
localplt.data	…
machine-gmon.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
machine-lock.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
machine-sp.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
malloc-alignment.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
malloc-machine.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
malloc-sysdep.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-barriers.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-nan-payload-double.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-nan-payload-float.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-narrow-alias-float128.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests-arch.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests-exceptions.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests-rounding.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests-snan-cast.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests-snan-payload.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests-snan.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests-trap-force.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests-trap.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-tests.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-type-macros-double.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-type-macros-float.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-type-macros-float128.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-type-macros-ldouble.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-type-macros.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math-use-builtins-ceil.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-copysign.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-floor.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-fma.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-nearbyint.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-rint.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-round.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-roundeven.h	Use GCC builtins for roundeven functions if desired.	2021-06-27 07:56:57 -07:00
math-use-builtins-sqrt.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-trunc.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins.h	Use GCC builtins for roundeven functions if desired.	2021-06-27 07:56:57 -07:00
math_ldbl.h	…
math_ldbl_opt.h	…
math_private.h	math: Remove mpa files [BZ #15267]	2021-03-11 14:26:36 +00:00
math_private_calls.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memcopy.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memusage.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mmap_info.h	…
nan-high-order-bit.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
not-cancel.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
not-errno.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
nscd-types.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
pagecopy.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
paths.h	…
profil-counter.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
pty-private.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
register-dump.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
rtld-lowlevel.h	…
rtld_static_init.h	elf: Partially initialize ld.so after static dlopen (bug 20802)	2021-05-17 10:06:57 +02:00
safe-fatal.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
setjmpP.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sigcontextinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
siglist-compat.c	signal: Move sys_siglist to a compat symbol	2020-07-07 14:10:58 -03:00
siglist-compat.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
siglist.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sigset-cvt-mask.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sigsetops.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
single-thread.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
spawn_int_def.h	posix: Add posix_spawn_file_actions_addclosefrom_np	2021-07-08 14:08:15 -03:00
stackguard-macros.h	…
stackinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
stap-probe-machine.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
startup.h	Use <startup.h> in __libc_init_secure	2021-01-19 09:55:47 -08:00
stdio-lock.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
string_private.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
struct_stat_time64.h	linux: Add {f}stat{at} y2038 support	2020-10-09 17:02:07 -03:00
symbol-hacks.h	…
sysdep-cancel.h	…
sysdep.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
thread_state.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
time-clockid.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
time64-compat.h	y2038: Add support for 64-bit time on legacy ABIs	2021-06-15 10:42:11 -03:00
tininess.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tls-internal-struct.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tls-internal.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tls-internal.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tls-macros.h	…
tls-setup.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tls.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit.h	…
tst-stack-align.h	Properly check stack alignment [BZ #27901]	2021-05-24 07:42:12 -07:00
unsecvars.h	…
unwind-arch.h	Implement <unwind-link.h> for dynamically loading the libgcc_s unwinder	2021-03-01 15:58:01 +01:00
unwind-dw2-fde-glibc.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
unwind-dw2-fde.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
unwind-dw2-fde.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
unwind-dw2.c	Legacy unwinder: Remove definition of _Unwind_GetCFA	2021-03-16 15:33:09 +01:00
unwind-link.h	Implement <unwind-link.h> for dynamically loading the libgcc_s unwinder	2021-03-01 15:58:01 +01:00
unwind-pe.c	…
unwind-pe.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
unwind-resume.c	nptl: Move __pthread_unwind_next into libc	2021-04-21 19:49:50 +02:00
unwind-resume.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
unwind.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
utmp-equal.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
xstatver.h	Remove mknod wrapper functions, move them to symbols	2020-10-09 17:02:06 -03:00