From: Philipp Stephani Date: Sat, 26 Dec 2020 11:19:50 +0000 (+0100) Subject: Revert "Revert "Import posix_spawn from Gnulib."" X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=3497c02d936ccb99fd61daf4409343d13cc88630;p=emacs.git Revert "Revert "Import posix_spawn from Gnulib."" This reverts commit ecf84a22ee002112c265b028263f1db81e3271e1. --- diff --git a/.gitignore b/.gitignore index bf7e9349813..f9c0fae4f60 100644 --- a/.gitignore +++ b/.gitignore @@ -65,7 +65,9 @@ lib/ieee754.h lib/inttypes.h lib/libgnu.a lib/limits.h +lib/sched.h lib/signal.h +lib/spawn.h lib/std*.h !lib/std*.in.h !lib/stdio-impl.h diff --git a/admin/merge-gnulib b/admin/merge-gnulib index 880dc5eef53..f1ed2da69e5 100755 --- a/admin/merge-gnulib +++ b/admin/merge-gnulib @@ -39,7 +39,14 @@ GNULIB_MODULES=' getloadavg getopt-gnu getrandom gettime gettimeofday gitlog-to-changelog ieee754-h ignore-value intprops largefile libgmp lstat manywarnings memmem-simple mempcpy memrchr minmax mkostemp mktime nstrftime - pathmax pipe2 pselect pthread_sigmask + pathmax pipe2 + posix_spawn posix_spawn_file_actions_addchdir + posix_spawn_file_actions_adddup2 posix_spawn_file_actions_destroy + posix_spawn_file_actions_init + posix_spawnattr_destroy posix_spawnattr_init + posix_spawnattr_setflags posix_spawnattr_setpgroup + posix_spawnattr_setsigdefault posix_spawnattr_setsigmask + pselect pthread_sigmask qcopy-acl readlink readlinkat regex sig2str sigdescr_np socklen stat-time std-gnu11 stdalign stddef stdio stpcpy strnlen strtoimax symlink sys_stat sys_time diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in index a37f9278a31..209c7eef299 100644 --- a/lib/gnulib.mk.in +++ b/lib/gnulib.mk.in @@ -130,6 +130,17 @@ # nstrftime \ # pathmax \ # pipe2 \ +# posix_spawn \ +# posix_spawn_file_actions_addchdir \ +# posix_spawn_file_actions_adddup2 \ +# posix_spawn_file_actions_destroy \ +# posix_spawn_file_actions_init \ +# posix_spawnattr_destroy \ +# posix_spawnattr_init \ +# posix_spawnattr_setflags \ +# posix_spawnattr_setpgroup \ +# posix_spawnattr_setsigdefault \ +# posix_spawnattr_setsigmask \ # pselect \ # pthread_sigmask \ # qcopy-acl \ @@ -393,6 +404,29 @@ GNULIB_PIPE2 = @GNULIB_PIPE2@ GNULIB_POPEN = @GNULIB_POPEN@ GNULIB_POSIX_MEMALIGN = @GNULIB_POSIX_MEMALIGN@ GNULIB_POSIX_OPENPT = @GNULIB_POSIX_OPENPT@ +GNULIB_POSIX_SPAWN = @GNULIB_POSIX_SPAWN@ +GNULIB_POSIX_SPAWNATTR_DESTROY = @GNULIB_POSIX_SPAWNATTR_DESTROY@ +GNULIB_POSIX_SPAWNATTR_GETFLAGS = @GNULIB_POSIX_SPAWNATTR_GETFLAGS@ +GNULIB_POSIX_SPAWNATTR_GETPGROUP = @GNULIB_POSIX_SPAWNATTR_GETPGROUP@ +GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM = @GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM@ +GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY = @GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY@ +GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT = @GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT@ +GNULIB_POSIX_SPAWNATTR_GETSIGMASK = @GNULIB_POSIX_SPAWNATTR_GETSIGMASK@ +GNULIB_POSIX_SPAWNATTR_INIT = @GNULIB_POSIX_SPAWNATTR_INIT@ +GNULIB_POSIX_SPAWNATTR_SETFLAGS = @GNULIB_POSIX_SPAWNATTR_SETFLAGS@ +GNULIB_POSIX_SPAWNATTR_SETPGROUP = @GNULIB_POSIX_SPAWNATTR_SETPGROUP@ +GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM = @GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM@ +GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY = @GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY@ +GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT = @GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT@ +GNULIB_POSIX_SPAWNATTR_SETSIGMASK = @GNULIB_POSIX_SPAWNATTR_SETSIGMASK@ +GNULIB_POSIX_SPAWNP = @GNULIB_POSIX_SPAWNP@ +GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@ +GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE@ +GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2 = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2@ +GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@ +GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN@ +GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY@ +GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT@ GNULIB_PREAD = @GNULIB_PREAD@ GNULIB_PRINTF = @GNULIB_PRINTF@ GNULIB_PRINTF_POSIX = @GNULIB_PRINTF_POSIX@ @@ -425,6 +459,7 @@ GNULIB_RMDIR = @GNULIB_RMDIR@ GNULIB_RPMATCH = @GNULIB_RPMATCH@ GNULIB_SCANDIR = @GNULIB_SCANDIR@ GNULIB_SCANF = @GNULIB_SCANF@ +GNULIB_SCHED_YIELD = @GNULIB_SCHED_YIELD@ GNULIB_SECURE_GETENV = @GNULIB_SECURE_GETENV@ GNULIB_SELECT = @GNULIB_SELECT@ GNULIB_SETENV = @GNULIB_SETENV@ @@ -634,6 +669,11 @@ HAVE_POPEN = @HAVE_POPEN@ HAVE_POSIX_MEMALIGN = @HAVE_POSIX_MEMALIGN@ HAVE_POSIX_OPENPT = @HAVE_POSIX_OPENPT@ HAVE_POSIX_SIGNALBLOCKING = @HAVE_POSIX_SIGNALBLOCKING@ +HAVE_POSIX_SPAWN = @HAVE_POSIX_SPAWN@ +HAVE_POSIX_SPAWNATTR_T = @HAVE_POSIX_SPAWNATTR_T@ +HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR = @HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@ +HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR = @HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@ +HAVE_POSIX_SPAWN_FILE_ACTIONS_T = @HAVE_POSIX_SPAWN_FILE_ACTIONS_T@ HAVE_PREAD = @HAVE_PREAD@ HAVE_PSELECT = @HAVE_PSELECT@ HAVE_PTHREAD_SIGMASK = @HAVE_PTHREAD_SIGMASK@ @@ -655,6 +695,8 @@ HAVE_RENAMEAT = @HAVE_RENAMEAT@ HAVE_REWINDDIR = @HAVE_REWINDDIR@ HAVE_RPMATCH = @HAVE_RPMATCH@ HAVE_SCANDIR = @HAVE_SCANDIR@ +HAVE_SCHED_H = @HAVE_SCHED_H@ +HAVE_SCHED_YIELD = @HAVE_SCHED_YIELD@ HAVE_SECURE_GETENV = @HAVE_SECURE_GETENV@ HAVE_SETENV = @HAVE_SETENV@ HAVE_SETHOSTNAME = @HAVE_SETHOSTNAME@ @@ -669,6 +711,7 @@ HAVE_SIGNED_WCHAR_T = @HAVE_SIGNED_WCHAR_T@ HAVE_SIGNED_WINT_T = @HAVE_SIGNED_WINT_T@ HAVE_SIGSET_T = @HAVE_SIGSET_T@ HAVE_SLEEP = @HAVE_SLEEP@ +HAVE_SPAWN_H = @HAVE_SPAWN_H@ HAVE_STDINT_H = @HAVE_STDINT_H@ HAVE_STPCPY = @HAVE_STPCPY@ HAVE_STPNCPY = @HAVE_STPNCPY@ @@ -683,6 +726,7 @@ HAVE_STRTOLD = @HAVE_STRTOLD@ HAVE_STRTOLL = @HAVE_STRTOLL@ HAVE_STRTOULL = @HAVE_STRTOULL@ HAVE_STRUCT_RANDOM_DATA = @HAVE_STRUCT_RANDOM_DATA@ +HAVE_STRUCT_SCHED_PARAM = @HAVE_STRUCT_SCHED_PARAM@ HAVE_STRUCT_SIGACTION_SA_SIGACTION = @HAVE_STRUCT_SIGACTION_SA_SIGACTION@ HAVE_STRUCT_TIMEVAL = @HAVE_STRUCT_TIMEVAL@ HAVE_STRVERSCMP = @HAVE_STRVERSCMP@ @@ -782,6 +826,7 @@ LIB_EACCESS = @LIB_EACCESS@ LIB_EXECINFO = @LIB_EXECINFO@ LIB_GETRANDOM = @LIB_GETRANDOM@ LIB_MATH = @LIB_MATH@ +LIB_POSIX_SPAWN = @LIB_POSIX_SPAWN@ LIB_PTHREAD = @LIB_PTHREAD@ LIB_PTHREAD_SIGMASK = @LIB_PTHREAD_SIGMASK@ LIB_TIMER_TIME = @LIB_TIMER_TIME@ @@ -805,7 +850,9 @@ NEXT_AS_FIRST_DIRECTIVE_FCNTL_H = @NEXT_AS_FIRST_DIRECTIVE_FCNTL_H@ NEXT_AS_FIRST_DIRECTIVE_GETOPT_H = @NEXT_AS_FIRST_DIRECTIVE_GETOPT_H@ NEXT_AS_FIRST_DIRECTIVE_INTTYPES_H = @NEXT_AS_FIRST_DIRECTIVE_INTTYPES_H@ NEXT_AS_FIRST_DIRECTIVE_LIMITS_H = @NEXT_AS_FIRST_DIRECTIVE_LIMITS_H@ +NEXT_AS_FIRST_DIRECTIVE_SCHED_H = @NEXT_AS_FIRST_DIRECTIVE_SCHED_H@ NEXT_AS_FIRST_DIRECTIVE_SIGNAL_H = @NEXT_AS_FIRST_DIRECTIVE_SIGNAL_H@ +NEXT_AS_FIRST_DIRECTIVE_SPAWN_H = @NEXT_AS_FIRST_DIRECTIVE_SPAWN_H@ NEXT_AS_FIRST_DIRECTIVE_STDDEF_H = @NEXT_AS_FIRST_DIRECTIVE_STDDEF_H@ NEXT_AS_FIRST_DIRECTIVE_STDINT_H = @NEXT_AS_FIRST_DIRECTIVE_STDINT_H@ NEXT_AS_FIRST_DIRECTIVE_STDIO_H = @NEXT_AS_FIRST_DIRECTIVE_STDIO_H@ @@ -824,7 +871,9 @@ NEXT_FCNTL_H = @NEXT_FCNTL_H@ NEXT_GETOPT_H = @NEXT_GETOPT_H@ NEXT_INTTYPES_H = @NEXT_INTTYPES_H@ NEXT_LIMITS_H = @NEXT_LIMITS_H@ +NEXT_SCHED_H = @NEXT_SCHED_H@ NEXT_SIGNAL_H = @NEXT_SIGNAL_H@ +NEXT_SPAWN_H = @NEXT_SPAWN_H@ NEXT_STDDEF_H = @NEXT_STDDEF_H@ NEXT_STDINT_H = @NEXT_STDINT_H@ NEXT_STDIO_H = @NEXT_STDIO_H@ @@ -946,6 +995,12 @@ REPLACE_OPENDIR = @REPLACE_OPENDIR@ REPLACE_PERROR = @REPLACE_PERROR@ REPLACE_POPEN = @REPLACE_POPEN@ REPLACE_POSIX_MEMALIGN = @REPLACE_POSIX_MEMALIGN@ +REPLACE_POSIX_SPAWN = @REPLACE_POSIX_SPAWN@ +REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR = @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@ +REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE = @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE@ +REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2 = @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2@ +REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR = @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@ +REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN = @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN@ REPLACE_PREAD = @REPLACE_PREAD@ REPLACE_PRINTF = @REPLACE_PRINTF@ REPLACE_PSELECT = @REPLACE_PSELECT@ @@ -967,6 +1022,7 @@ REPLACE_REMOVE = @REPLACE_REMOVE@ REPLACE_RENAME = @REPLACE_RENAME@ REPLACE_RENAMEAT = @REPLACE_RENAMEAT@ REPLACE_RMDIR = @REPLACE_RMDIR@ +REPLACE_SCHED_YIELD = @REPLACE_SCHED_YIELD@ REPLACE_SELECT = @REPLACE_SELECT@ REPLACE_SETENV = @REPLACE_SETENV@ REPLACE_SETSTATE = @REPLACE_SETSTATE@ @@ -1108,11 +1164,13 @@ gamegroup = @gamegroup@ gameuser = @gameuser@ gl_GNULIB_ENABLED_03e0aaad4cb89ca757653bd367a6ccb7 = @gl_GNULIB_ENABLED_03e0aaad4cb89ca757653bd367a6ccb7@ gl_GNULIB_ENABLED_260941c0e5dc67ec9e87d1fb321c300b = @gl_GNULIB_ENABLED_260941c0e5dc67ec9e87d1fb321c300b@ +gl_GNULIB_ENABLED_332607f759618fb73dfc3076748afea7 = @gl_GNULIB_ENABLED_332607f759618fb73dfc3076748afea7@ gl_GNULIB_ENABLED_5264294aa0a5557541b53c8c741f7f31 = @gl_GNULIB_ENABLED_5264294aa0a5557541b53c8c741f7f31@ gl_GNULIB_ENABLED_6099e9737f757db36c47fa9d9f02e88c = @gl_GNULIB_ENABLED_6099e9737f757db36c47fa9d9f02e88c@ gl_GNULIB_ENABLED_682e609604ccaac6be382e4ee3a4eaec = @gl_GNULIB_ENABLED_682e609604ccaac6be382e4ee3a4eaec@ gl_GNULIB_ENABLED_a9786850e999ae65a836a6041e8e5ed1 = @gl_GNULIB_ENABLED_a9786850e999ae65a836a6041e8e5ed1@ gl_GNULIB_ENABLED_be453cec5eecf5731a274f2de7f2db36 = @gl_GNULIB_ENABLED_be453cec5eecf5731a274f2de7f2db36@ +gl_GNULIB_ENABLED_cdeb0f2aaf9d280baa6526bfa1b07f70 = @gl_GNULIB_ENABLED_cdeb0f2aaf9d280baa6526bfa1b07f70@ gl_GNULIB_ENABLED_cloexec = @gl_GNULIB_ENABLED_cloexec@ gl_GNULIB_ENABLED_dirfd = @gl_GNULIB_ENABLED_dirfd@ gl_GNULIB_ENABLED_ef07dc4b3077c11ea9cef586db4e5955 = @gl_GNULIB_ENABLED_ef07dc4b3077c11ea9cef586db4e5955@ @@ -1124,6 +1182,7 @@ gl_GNULIB_ENABLED_lchmod = @gl_GNULIB_ENABLED_lchmod@ gl_GNULIB_ENABLED_open = @gl_GNULIB_ENABLED_open@ gl_GNULIB_ENABLED_rawmemchr = @gl_GNULIB_ENABLED_rawmemchr@ gl_GNULIB_ENABLED_scratch_buffer = @gl_GNULIB_ENABLED_scratch_buffer@ +gl_GNULIB_ENABLED_strchrnul = @gl_GNULIB_ENABLED_strchrnul@ gl_GNULIB_ENABLED_strtoll = @gl_GNULIB_ENABLED_strtoll@ gl_GNULIB_ENABLED_utimens = @gl_GNULIB_ENABLED_utimens@ gl_LIBOBJS = @gl_LIBOBJS@ @@ -2270,6 +2329,140 @@ libgnu_a_SOURCES += pipe2.c endif ## end gnulib module pipe2 +## begin gnulib module posix_spawn +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawn)) + + +EXTRA_DIST += spawn.c + +EXTRA_libgnu_a_SOURCES += spawn.c + +endif +## end gnulib module posix_spawn + +## begin gnulib module posix_spawn-internal +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawn-internal)) + +ifneq (,$(gl_GNULIB_ENABLED_332607f759618fb73dfc3076748afea7)) + +endif +EXTRA_DIST += spawn_int.h spawni.c + +EXTRA_libgnu_a_SOURCES += spawni.c + +endif +## end gnulib module posix_spawn-internal + +## begin gnulib module posix_spawn_file_actions_addchdir +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawn_file_actions_addchdir)) + + +EXTRA_DIST += spawn_faction_addchdir.c spawn_int.h + +EXTRA_libgnu_a_SOURCES += spawn_faction_addchdir.c + +endif +## end gnulib module posix_spawn_file_actions_addchdir + +## begin gnulib module posix_spawn_file_actions_adddup2 +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawn_file_actions_adddup2)) + + +EXTRA_DIST += spawn_faction_adddup2.c spawn_int.h + +EXTRA_libgnu_a_SOURCES += spawn_faction_adddup2.c + +endif +## end gnulib module posix_spawn_file_actions_adddup2 + +## begin gnulib module posix_spawn_file_actions_destroy +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawn_file_actions_destroy)) + + +EXTRA_DIST += spawn_faction_destroy.c + +EXTRA_libgnu_a_SOURCES += spawn_faction_destroy.c + +endif +## end gnulib module posix_spawn_file_actions_destroy + +## begin gnulib module posix_spawn_file_actions_init +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawn_file_actions_init)) + + +EXTRA_DIST += spawn_faction_init.c spawn_int.h + +EXTRA_libgnu_a_SOURCES += spawn_faction_init.c + +endif +## end gnulib module posix_spawn_file_actions_init + +## begin gnulib module posix_spawnattr_destroy +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawnattr_destroy)) + + +EXTRA_DIST += spawnattr_destroy.c + +EXTRA_libgnu_a_SOURCES += spawnattr_destroy.c + +endif +## end gnulib module posix_spawnattr_destroy + +## begin gnulib module posix_spawnattr_init +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawnattr_init)) + + +EXTRA_DIST += spawnattr_init.c + +EXTRA_libgnu_a_SOURCES += spawnattr_init.c + +endif +## end gnulib module posix_spawnattr_init + +## begin gnulib module posix_spawnattr_setflags +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawnattr_setflags)) + + +EXTRA_DIST += spawnattr_setflags.c + +EXTRA_libgnu_a_SOURCES += spawnattr_setflags.c + +endif +## end gnulib module posix_spawnattr_setflags + +## begin gnulib module posix_spawnattr_setpgroup +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawnattr_setpgroup)) + + +EXTRA_DIST += spawnattr_setpgroup.c + +EXTRA_libgnu_a_SOURCES += spawnattr_setpgroup.c + +endif +## end gnulib module posix_spawnattr_setpgroup + +## begin gnulib module posix_spawnattr_setsigdefault +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawnattr_setsigdefault)) + + +EXTRA_DIST += spawnattr_setdefault.c + +EXTRA_libgnu_a_SOURCES += spawnattr_setdefault.c + +endif +## end gnulib module posix_spawnattr_setsigdefault + +## begin gnulib module posix_spawnattr_setsigmask +ifeq (,$(OMIT_GNULIB_MODULE_posix_spawnattr_setsigmask)) + + +EXTRA_DIST += spawnattr_setsigmask.c + +EXTRA_libgnu_a_SOURCES += spawnattr_setsigmask.c + +endif +## end gnulib module posix_spawnattr_setsigmask + ## begin gnulib module pselect ifeq (,$(OMIT_GNULIB_MODULE_pselect)) @@ -2357,6 +2550,39 @@ EXTRA_DIST += root-uid.h endif ## end gnulib module root-uid +## begin gnulib module sched +ifeq (,$(OMIT_GNULIB_MODULE_sched)) + +BUILT_SOURCES += sched.h + +# We need the following in order to create a replacement for when +# the system doesn't have one. +sched.h: sched.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(WARN_ON_USE_H) + $(AM_V_GEN)rm -f $@-t $@ && \ + { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \ + sed -e 's|@''GUARD_PREFIX''@|GL|g' \ + -e 's|@''HAVE_SCHED_H''@|$(HAVE_SCHED_H)|g' \ + -e 's|@''HAVE_SYS_CDEFS_H''@|$(HAVE_SYS_CDEFS_H)|g' \ + -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \ + -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \ + -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \ + -e 's|@''NEXT_SCHED_H''@|$(NEXT_SCHED_H)|g' \ + -e 's|@''HAVE_STRUCT_SCHED_PARAM''@|$(HAVE_STRUCT_SCHED_PARAM)|g' \ + -e 's/@''GNULIB_SCHED_YIELD''@/$(GNULIB_SCHED_YIELD)/g' \ + -e 's|@''HAVE_SCHED_YIELD''@|$(HAVE_SCHED_YIELD)|g' \ + -e 's|@''REPLACE_SCHED_YIELD''@|$(REPLACE_SCHED_YIELD)|g' \ + -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \ + -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \ + < $(srcdir)/sched.in.h; \ + } > $@-t && \ + mv $@-t $@ +MOSTLYCLEANFILES += sched.h sched.h-t + +EXTRA_DIST += sched.in.h + +endif +## end gnulib module sched + ## begin gnulib module scratch_buffer ifeq (,$(OMIT_GNULIB_MODULE_scratch_buffer)) @@ -2491,6 +2717,69 @@ EXTRA_DIST += warn-on-use.h endif ## end gnulib module snippet/warn-on-use +## begin gnulib module spawn +ifeq (,$(OMIT_GNULIB_MODULE_spawn)) + +BUILT_SOURCES += spawn.h + +# We need the following in order to create a replacement for when +# the system doesn't have one. +spawn.h: spawn.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H) + $(AM_V_GEN)rm -f $@-t $@ && \ + { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \ + sed -e 's|@''GUARD_PREFIX''@|GL|g' \ + -e 's|@''HAVE_SPAWN_H''@|$(HAVE_SPAWN_H)|g' \ + -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \ + -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \ + -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \ + -e 's|@''NEXT_SPAWN_H''@|$(NEXT_SPAWN_H)|g' \ + -e 's/@''GNULIB_POSIX_SPAWN''@/$(GNULIB_POSIX_SPAWN)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNP''@/$(GNULIB_POSIX_SPAWNP)/g' \ + -e 's/@''GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT''@/$(GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT)/g' \ + -e 's/@''GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR''@/$(GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR)/g' \ + -e 's/@''GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE''@/$(GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE)/g' \ + -e 's/@''GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2''@/$(GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2)/g' \ + -e 's/@''GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR''@/$(GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR)/g' \ + -e 's/@''GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN''@/$(GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN)/g' \ + -e 's/@''GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY''@/$(GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_INIT''@/$(GNULIB_POSIX_SPAWNATTR_INIT)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_GETFLAGS''@/$(GNULIB_POSIX_SPAWNATTR_GETFLAGS)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_SETFLAGS''@/$(GNULIB_POSIX_SPAWNATTR_SETFLAGS)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_GETPGROUP''@/$(GNULIB_POSIX_SPAWNATTR_GETPGROUP)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_SETPGROUP''@/$(GNULIB_POSIX_SPAWNATTR_SETPGROUP)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM''@/$(GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM''@/$(GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY''@/$(GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY''@/$(GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT''@/$(GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT''@/$(GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_GETSIGMASK''@/$(GNULIB_POSIX_SPAWNATTR_GETSIGMASK)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_SETSIGMASK''@/$(GNULIB_POSIX_SPAWNATTR_SETSIGMASK)/g' \ + -e 's/@''GNULIB_POSIX_SPAWNATTR_DESTROY''@/$(GNULIB_POSIX_SPAWNATTR_DESTROY)/g' \ + -e 's|@''HAVE_POSIX_SPAWN''@|$(HAVE_POSIX_SPAWN)|g' \ + -e 's|@''HAVE_POSIX_SPAWNATTR_T''@|$(HAVE_POSIX_SPAWNATTR_T)|g' \ + -e 's|@''HAVE_POSIX_SPAWN_FILE_ACTIONS_T''@|$(HAVE_POSIX_SPAWN_FILE_ACTIONS_T)|g' \ + -e 's|@''HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR''@|$(HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR)|g' \ + -e 's|@''HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR''@|$(HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR)|g' \ + -e 's|@''REPLACE_POSIX_SPAWN''@|$(REPLACE_POSIX_SPAWN)|g' \ + -e 's|@''REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR''@|$(REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR)|g' \ + -e 's|@''REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE''@|$(REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE)|g' \ + -e 's|@''REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2''@|$(REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2)|g' \ + -e 's|@''REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR''@|$(REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR)|g' \ + -e 's|@''REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN''@|$(REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN)|g' \ + -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \ + -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \ + -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \ + < $(srcdir)/spawn.in.h; \ + } > $@-t && \ + mv $@-t $@ +MOSTLYCLEANFILES += spawn.h spawn.h-t + +EXTRA_DIST += spawn.in.h + +endif +## end gnulib module spawn + ## begin gnulib module stat-time ifeq (,$(OMIT_GNULIB_MODULE_stat-time)) @@ -2885,6 +3174,19 @@ EXTRA_libgnu_a_SOURCES += stpcpy.c endif ## end gnulib module stpcpy +## begin gnulib module strchrnul +ifeq (,$(OMIT_GNULIB_MODULE_strchrnul)) + +ifneq (,$(gl_GNULIB_ENABLED_strchrnul)) + +endif +EXTRA_DIST += strchrnul.c strchrnul.valgrind + +EXTRA_libgnu_a_SOURCES += strchrnul.c + +endif +## end gnulib module strchrnul + ## begin gnulib module string ifeq (,$(OMIT_GNULIB_MODULE_string)) diff --git a/lib/sched.in.h b/lib/sched.in.h new file mode 100644 index 00000000000..4ee9defe82b --- /dev/null +++ b/lib/sched.in.h @@ -0,0 +1,99 @@ +/* A GNU-like . + Copyright (C) 2008-2020 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#ifndef _@GUARD_PREFIX@_SCHED_H + +#if __GNUC__ >= 3 +@PRAGMA_SYSTEM_HEADER@ +#endif +@PRAGMA_COLUMNS@ + +/* The include_next requires a split double-inclusion guard. */ +#if @HAVE_SCHED_H@ +# if @HAVE_SYS_CDEFS_H@ +# include +# endif +# @INCLUDE_NEXT@ @NEXT_SCHED_H@ +#endif + +#ifndef _@GUARD_PREFIX@_SCHED_H +#define _@GUARD_PREFIX@_SCHED_H + +/* Get pid_t. + This is needed on glibc 2.11 (see + glibc bug ) + and Mac OS X 10.5. */ +#include + +#ifdef __KLIBC__ +/* On OS/2 kLIBC, struct sched_param is in spawn.h. */ +# include +#endif + +#ifdef __VMS +/* On OpenVMS, struct sched_param is in . */ +# include +#endif + +/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ + +/* The definition of _GL_WARN_ON_USE is copied here. */ + +#if !@HAVE_STRUCT_SCHED_PARAM@ + +# if !GNULIB_defined_struct_sched_param +struct sched_param +{ + int sched_priority; +}; +# define GNULIB_defined_struct_sched_param 1 +# endif + +#endif + +#if !(defined SCHED_FIFO && defined SCHED_RR && defined SCHED_OTHER) +# define SCHED_FIFO 1 +# define SCHED_RR 2 +# define SCHED_OTHER 0 +#endif + +#if @GNULIB_SCHED_YIELD@ +# if @REPLACE_SCHED_YIELD@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef sched_yield +# define sched_yield rpl_sched_yield +# endif +_GL_FUNCDECL_RPL (sched_yield, int, (void)); +_GL_CXXALIAS_RPL (sched_yield, int, (void)); +# else +# if !@HAVE_SCHED_YIELD@ +_GL_FUNCDECL_SYS (sched_yield, int, (void)); +# endif +_GL_CXXALIAS_SYS (sched_yield, int, (void)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (sched_yield); +# endif +#elif defined GNULIB_POSIXCHECK +# undef sched_yield +# if HAVE_RAW_DECL_SCHED_YIELD +_GL_WARN_ON_USE (sched_yield, "sched_yield is not portable - " + "use gnulib module sched_yield for portability"); +# endif +#endif + +#endif /* _@GUARD_PREFIX@_SCHED_H */ +#endif /* _@GUARD_PREFIX@_SCHED_H */ diff --git a/lib/spawn.c b/lib/spawn.c new file mode 100644 index 00000000000..b658453a10f --- /dev/null +++ b/lib/spawn.c @@ -0,0 +1,34 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include "spawn_int.h" + +/* Spawn a new process executing PATH with the attributes describes in *ATTRP. + Before running the process perform the actions described in FILE-ACTIONS. */ +int +posix_spawn (pid_t *pid, const char *path, + const posix_spawn_file_actions_t *file_actions, + const posix_spawnattr_t *attrp, char *const argv[], + char *const envp[]) +{ + return __spawni (pid, path, file_actions, attrp, + (const char * const *) argv, (const char * const *) envp, 0); +} diff --git a/lib/spawn.in.h b/lib/spawn.in.h new file mode 100644 index 00000000000..537fac7dbc5 --- /dev/null +++ b/lib/spawn.in.h @@ -0,0 +1,974 @@ +/* Definitions for POSIX spawn interface. + Copyright (C) 2000, 2003-2004, 2008-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#ifndef _@GUARD_PREFIX@_SPAWN_H + +#if __GNUC__ >= 3 +@PRAGMA_SYSTEM_HEADER@ +#endif +@PRAGMA_COLUMNS@ + +/* The include_next requires a split double-inclusion guard. */ +#if @HAVE_SPAWN_H@ +# @INCLUDE_NEXT@ @NEXT_SPAWN_H@ +#endif + +#ifndef _@GUARD_PREFIX@_SPAWN_H +#define _@GUARD_PREFIX@_SPAWN_H + +/* Get definitions of 'struct sched_param' and 'sigset_t'. + But avoid namespace pollution on glibc systems. */ +#if !(defined __GLIBC__ && !defined __UCLIBC__) +# include +# include +#endif + +#include + +#ifndef __THROW +# define __THROW +#endif + +/* For plain 'restrict', use glibc's __restrict if defined. + Otherwise, GCC 2.95 and later have "__restrict"; C99 compilers have + "restrict", and "configure" may have defined "restrict". + Other compilers use __restrict, __restrict__, and _Restrict, and + 'configure' might #define 'restrict' to those words, so pick a + different name. */ +#ifndef _Restrict_ +# if defined __restrict \ + || 2 < __GNUC__ + (95 <= __GNUC_MINOR__) \ + || __clang_major__ >= 3 +# define _Restrict_ __restrict +# elif 199901L <= __STDC_VERSION__ || defined restrict +# define _Restrict_ restrict +# else +# define _Restrict_ +# endif +#endif +/* For the ISO C99 syntax + array_name[restrict] + use glibc's __restrict_arr if available. + Otherwise, GCC 3.1 and clang support this syntax (but not in C++ mode). + Other ISO C99 compilers support it as well. */ +#ifndef _Restrict_arr_ +# ifdef __restrict_arr +# define _Restrict_arr_ __restrict_arr +# elif ((199901L <= __STDC_VERSION__ \ + || 3 < __GNUC__ + (1 <= __GNUC_MINOR__) \ + || __clang_major__ >= 3) \ + && !defined __cplusplus) +# define _Restrict_arr_ _Restrict_ +# else +# define _Restrict_arr_ +# endif +#endif + +/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ + +/* The definition of _GL_ARG_NONNULL is copied here. */ + +/* The definition of _GL_WARN_ON_USE is copied here. */ + + +/* Data structure to contain attributes for thread creation. */ +#if @REPLACE_POSIX_SPAWN@ || (@HAVE_POSIX_SPAWNATTR_T@ && !@HAVE_POSIX_SPAWN@) +# define posix_spawnattr_t rpl_posix_spawnattr_t +#endif +#if @REPLACE_POSIX_SPAWN@ || !@HAVE_POSIX_SPAWNATTR_T@ || !@HAVE_POSIX_SPAWN@ +# if !GNULIB_defined_posix_spawnattr_t +typedef struct +{ + short int _flags; + pid_t _pgrp; + sigset_t _sd; + sigset_t _ss; + struct sched_param _sp; + int _policy; + int __pad[16]; +} posix_spawnattr_t; +# define GNULIB_defined_posix_spawnattr_t 1 +# endif +#endif + + +/* Data structure to contain information about the actions to be + performed in the new process with respect to file descriptors. */ +#if @REPLACE_POSIX_SPAWN@ || (@HAVE_POSIX_SPAWN_FILE_ACTIONS_T@ && !@HAVE_POSIX_SPAWN@) +# define posix_spawn_file_actions_t rpl_posix_spawn_file_actions_t +#endif +#if @REPLACE_POSIX_SPAWN@ || !@HAVE_POSIX_SPAWN_FILE_ACTIONS_T@ || !@HAVE_POSIX_SPAWN@ +# if !GNULIB_defined_posix_spawn_file_actions_t +typedef struct +{ + int _allocated; + int _used; + struct __spawn_action *_actions; + int __pad[16]; +} posix_spawn_file_actions_t; +# define GNULIB_defined_posix_spawn_file_actions_t 1 +# endif +#endif + + +/* Flags to be set in the 'posix_spawnattr_t'. */ +#if @HAVE_POSIX_SPAWN@ +/* Use the values from the system, but provide the missing ones. */ +# ifndef POSIX_SPAWN_SETSCHEDPARAM +# define POSIX_SPAWN_SETSCHEDPARAM 0 +# endif +# ifndef POSIX_SPAWN_SETSCHEDULER +# define POSIX_SPAWN_SETSCHEDULER 0 +# endif +#else +# if @REPLACE_POSIX_SPAWN@ +/* Use the values from the system, for better compatibility. */ +/* But this implementation does not support AIX extensions. */ +# undef POSIX_SPAWN_FORK_HANDLERS +# else +# define POSIX_SPAWN_RESETIDS 0x01 +# define POSIX_SPAWN_SETPGROUP 0x02 +# define POSIX_SPAWN_SETSIGDEF 0x04 +# define POSIX_SPAWN_SETSIGMASK 0x08 +# define POSIX_SPAWN_SETSCHEDPARAM 0x10 +# define POSIX_SPAWN_SETSCHEDULER 0x20 +# endif +#endif +/* A GNU extension. Use the next free bit position. */ +#ifndef POSIX_SPAWN_USEVFORK +# define POSIX_SPAWN_USEVFORK \ + ((POSIX_SPAWN_RESETIDS | (POSIX_SPAWN_RESETIDS - 1) \ + | POSIX_SPAWN_SETPGROUP | (POSIX_SPAWN_SETPGROUP - 1) \ + | POSIX_SPAWN_SETSIGDEF | (POSIX_SPAWN_SETSIGDEF - 1) \ + | POSIX_SPAWN_SETSIGMASK | (POSIX_SPAWN_SETSIGMASK - 1) \ + | POSIX_SPAWN_SETSCHEDPARAM \ + | (POSIX_SPAWN_SETSCHEDPARAM > 0 ? POSIX_SPAWN_SETSCHEDPARAM - 1 : 0) \ + | POSIX_SPAWN_SETSCHEDULER \ + | (POSIX_SPAWN_SETSCHEDULER > 0 ? POSIX_SPAWN_SETSCHEDULER - 1 : 0)) \ + + 1) +#endif +#if !GNULIB_defined_verify_POSIX_SPAWN_USEVFORK_no_overlap +typedef int verify_POSIX_SPAWN_USEVFORK_no_overlap + [(((POSIX_SPAWN_RESETIDS | POSIX_SPAWN_SETPGROUP + | POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK + | POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER) + & POSIX_SPAWN_USEVFORK) + == 0) + ? 1 : -1]; +# define GNULIB_defined_verify_POSIX_SPAWN_USEVFORK_no_overlap 1 +#endif + + +#if @GNULIB_POSIX_SPAWN@ +/* Spawn a new process executing PATH with the attributes describes in *ATTRP. + Before running the process perform the actions described in FILE-ACTIONS. + + This function is a possible cancellation points and therefore not + marked with __THROW. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawn rpl_posix_spawn +# endif +_GL_FUNCDECL_RPL (posix_spawn, int, + (pid_t *_Restrict_ __pid, + const char *_Restrict_ __path, + const posix_spawn_file_actions_t *_Restrict_ __file_actions, + const posix_spawnattr_t *_Restrict_ __attrp, + char *const argv[_Restrict_arr_], + char *const envp[_Restrict_arr_]) + _GL_ARG_NONNULL ((2, 5, 6))); +_GL_CXXALIAS_RPL (posix_spawn, int, + (pid_t *_Restrict_ __pid, + const char *_Restrict_ __path, + const posix_spawn_file_actions_t *_Restrict_ __file_actions, + const posix_spawnattr_t *_Restrict_ __attrp, + char *const argv[_Restrict_arr_], + char *const envp[_Restrict_arr_])); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawn, int, + (pid_t *_Restrict_ __pid, + const char *_Restrict_ __path, + const posix_spawn_file_actions_t *_Restrict_ __file_actions, + const posix_spawnattr_t *_Restrict_ __attrp, + char *const argv[_Restrict_arr_], + char *const envp[_Restrict_arr_]) + _GL_ARG_NONNULL ((2, 5, 6))); +# endif +_GL_CXXALIAS_SYS (posix_spawn, int, + (pid_t *_Restrict_ __pid, + const char *_Restrict_ __path, + const posix_spawn_file_actions_t *_Restrict_ __file_actions, + const posix_spawnattr_t *_Restrict_ __attrp, + char *const argv[_Restrict_arr_], + char *const envp[_Restrict_arr_])); +# endif +_GL_CXXALIASWARN (posix_spawn); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawn +# if HAVE_RAW_DECL_POSIX_SPAWN +_GL_WARN_ON_USE (posix_spawn, "posix_spawn is unportable - " + "use gnulib module posix_spawn for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNP@ +/* Similar to 'posix_spawn' but search for FILE in the PATH. + + This function is a possible cancellation points and therefore not + marked with __THROW. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnp rpl_posix_spawnp +# endif +_GL_FUNCDECL_RPL (posix_spawnp, int, + (pid_t *__pid, const char *__file, + const posix_spawn_file_actions_t *__file_actions, + const posix_spawnattr_t *__attrp, + char *const argv[], char *const envp[]) + _GL_ARG_NONNULL ((2, 5, 6))); +_GL_CXXALIAS_RPL (posix_spawnp, int, + (pid_t *__pid, const char *__file, + const posix_spawn_file_actions_t *__file_actions, + const posix_spawnattr_t *__attrp, + char *const argv[], char *const envp[])); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnp, int, + (pid_t *__pid, const char *__file, + const posix_spawn_file_actions_t *__file_actions, + const posix_spawnattr_t *__attrp, + char *const argv[], char *const envp[]) + _GL_ARG_NONNULL ((2, 5, 6))); +# endif +_GL_CXXALIAS_SYS (posix_spawnp, int, + (pid_t *__pid, const char *__file, + const posix_spawn_file_actions_t *__file_actions, + const posix_spawnattr_t *__attrp, + char *const argv[], char *const envp[])); +# endif +_GL_CXXALIASWARN (posix_spawnp); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnp +# if HAVE_RAW_DECL_POSIX_SPAWNP +_GL_WARN_ON_USE (posix_spawnp, "posix_spawnp is unportable - " + "use gnulib module posix_spawnp for portability"); +# endif +#endif + + +#if @GNULIB_POSIX_SPAWNATTR_INIT@ +/* Initialize data structure with attributes for 'spawn' to default values. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_init rpl_posix_spawnattr_init +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_init, int, (posix_spawnattr_t *__attr) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawnattr_init, int, (posix_spawnattr_t *__attr)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_init, int, (posix_spawnattr_t *__attr) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_init, int, (posix_spawnattr_t *__attr)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_init); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_init +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_INIT +_GL_WARN_ON_USE (posix_spawnattr_init, "posix_spawnattr_init is unportable - " + "use gnulib module posix_spawnattr_init for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_DESTROY@ +/* Free resources associated with ATTR. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_destroy rpl_posix_spawnattr_destroy +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_destroy, int, (posix_spawnattr_t *__attr) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawnattr_destroy, int, (posix_spawnattr_t *__attr)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_destroy, int, (posix_spawnattr_t *__attr) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_destroy, int, (posix_spawnattr_t *__attr)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_destroy); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_destroy +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_DESTROY +_GL_WARN_ON_USE (posix_spawnattr_destroy, + "posix_spawnattr_destroy is unportable - " + "use gnulib module posix_spawnattr_destroy for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT@ +/* Store signal mask for signals with default handling from ATTR in + SIGDEFAULT. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_getsigdefault rpl_posix_spawnattr_getsigdefault +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_getsigdefault, int, + (const posix_spawnattr_t *_Restrict_ __attr, + sigset_t *_Restrict_ __sigdefault) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_getsigdefault, int, + (const posix_spawnattr_t *_Restrict_ __attr, + sigset_t *_Restrict_ __sigdefault)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_getsigdefault, int, + (const posix_spawnattr_t *_Restrict_ __attr, + sigset_t *_Restrict_ __sigdefault) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_getsigdefault, int, + (const posix_spawnattr_t *_Restrict_ __attr, + sigset_t *_Restrict_ __sigdefault)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_getsigdefault); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_getsigdefault +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSIGDEFAULT +_GL_WARN_ON_USE (posix_spawnattr_getsigdefault, + "posix_spawnattr_getsigdefault is unportable - " + "use gnulib module posix_spawnattr_getsigdefault for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT@ +/* Set signal mask for signals with default handling in ATTR to SIGDEFAULT. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_setsigdefault rpl_posix_spawnattr_setsigdefault +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_setsigdefault, int, + (posix_spawnattr_t *_Restrict_ __attr, + const sigset_t *_Restrict_ __sigdefault) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_setsigdefault, int, + (posix_spawnattr_t *_Restrict_ __attr, + const sigset_t *_Restrict_ __sigdefault)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_setsigdefault, int, + (posix_spawnattr_t *_Restrict_ __attr, + const sigset_t *_Restrict_ __sigdefault) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_setsigdefault, int, + (posix_spawnattr_t *_Restrict_ __attr, + const sigset_t *_Restrict_ __sigdefault)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_setsigdefault); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_setsigdefault +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSIGDEFAULT +_GL_WARN_ON_USE (posix_spawnattr_setsigdefault, + "posix_spawnattr_setsigdefault is unportable - " + "use gnulib module posix_spawnattr_setsigdefault for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_GETSIGMASK@ +/* Store signal mask for the new process from ATTR in SIGMASK. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_getsigmask rpl_posix_spawnattr_getsigmask +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_getsigmask, int, + (const posix_spawnattr_t *_Restrict_ __attr, + sigset_t *_Restrict_ __sigmask) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_getsigmask, int, + (const posix_spawnattr_t *_Restrict_ __attr, + sigset_t *_Restrict_ __sigmask)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_getsigmask, int, + (const posix_spawnattr_t *_Restrict_ __attr, + sigset_t *_Restrict_ __sigmask) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_getsigmask, int, + (const posix_spawnattr_t *_Restrict_ __attr, + sigset_t *_Restrict_ __sigmask)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_getsigmask); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_getsigmask +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSIGMASK +_GL_WARN_ON_USE (posix_spawnattr_getsigmask, + "posix_spawnattr_getsigmask is unportable - " + "use gnulib module posix_spawnattr_getsigmask for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_SETSIGMASK@ +/* Set signal mask for the new process in ATTR to SIGMASK. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_setsigmask rpl_posix_spawnattr_setsigmask +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_setsigmask, int, + (posix_spawnattr_t *_Restrict_ __attr, + const sigset_t *_Restrict_ __sigmask) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_setsigmask, int, + (posix_spawnattr_t *_Restrict_ __attr, + const sigset_t *_Restrict_ __sigmask)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_setsigmask, int, + (posix_spawnattr_t *_Restrict_ __attr, + const sigset_t *_Restrict_ __sigmask) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_setsigmask, int, + (posix_spawnattr_t *_Restrict_ __attr, + const sigset_t *_Restrict_ __sigmask)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_setsigmask); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_setsigmask +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSIGMASK +_GL_WARN_ON_USE (posix_spawnattr_setsigmask, + "posix_spawnattr_setsigmask is unportable - " + "use gnulib module posix_spawnattr_setsigmask for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_GETFLAGS@ +/* Get flag word from the attribute structure. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_getflags rpl_posix_spawnattr_getflags +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_getflags, int, + (const posix_spawnattr_t *_Restrict_ __attr, + short int *_Restrict_ __flags) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_getflags, int, + (const posix_spawnattr_t *_Restrict_ __attr, + short int *_Restrict_ __flags)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_getflags, int, + (const posix_spawnattr_t *_Restrict_ __attr, + short int *_Restrict_ __flags) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_getflags, int, + (const posix_spawnattr_t *_Restrict_ __attr, + short int *_Restrict_ __flags)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_getflags); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_getflags +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETFLAGS +_GL_WARN_ON_USE (posix_spawnattr_getflags, + "posix_spawnattr_getflags is unportable - " + "use gnulib module posix_spawnattr_getflags for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_SETFLAGS@ +/* Store flags in the attribute structure. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_setflags rpl_posix_spawnattr_setflags +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_setflags, int, + (posix_spawnattr_t *__attr, short int __flags) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawnattr_setflags, int, + (posix_spawnattr_t *__attr, short int __flags)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_setflags, int, + (posix_spawnattr_t *__attr, short int __flags) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_setflags, int, + (posix_spawnattr_t *__attr, short int __flags)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_setflags); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_setflags +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETFLAGS +_GL_WARN_ON_USE (posix_spawnattr_setflags, + "posix_spawnattr_setflags is unportable - " + "use gnulib module posix_spawnattr_setflags for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_GETPGROUP@ +/* Get process group ID from the attribute structure. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_getpgroup rpl_posix_spawnattr_getpgroup +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_getpgroup, int, + (const posix_spawnattr_t *_Restrict_ __attr, + pid_t *_Restrict_ __pgroup) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_getpgroup, int, + (const posix_spawnattr_t *_Restrict_ __attr, + pid_t *_Restrict_ __pgroup)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_getpgroup, int, + (const posix_spawnattr_t *_Restrict_ __attr, + pid_t *_Restrict_ __pgroup) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_getpgroup, int, + (const posix_spawnattr_t *_Restrict_ __attr, + pid_t *_Restrict_ __pgroup)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_getpgroup); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_getpgroup +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETPGROUP +_GL_WARN_ON_USE (posix_spawnattr_getpgroup, + "posix_spawnattr_getpgroup is unportable - " + "use gnulib module posix_spawnattr_getpgroup for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_SETPGROUP@ +/* Store process group ID in the attribute structure. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_setpgroup rpl_posix_spawnattr_setpgroup +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_setpgroup, int, + (posix_spawnattr_t *__attr, pid_t __pgroup) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawnattr_setpgroup, int, + (posix_spawnattr_t *__attr, pid_t __pgroup)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawnattr_setpgroup, int, + (posix_spawnattr_t *__attr, pid_t __pgroup) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_setpgroup, int, + (posix_spawnattr_t *__attr, pid_t __pgroup)); +# endif +_GL_CXXALIASWARN (posix_spawnattr_setpgroup); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_setpgroup +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETPGROUP +_GL_WARN_ON_USE (posix_spawnattr_setpgroup, + "posix_spawnattr_setpgroup is unportable - " + "use gnulib module posix_spawnattr_setpgroup for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY@ +/* Get scheduling policy from the attribute structure. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_getschedpolicy rpl_posix_spawnattr_getschedpolicy +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_getschedpolicy, int, + (const posix_spawnattr_t *_Restrict_ __attr, + int *_Restrict_ __schedpolicy) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_getschedpolicy, int, + (const posix_spawnattr_t *_Restrict_ __attr, + int *_Restrict_ __schedpolicy)); +# else +# if !@HAVE_POSIX_SPAWN@ || POSIX_SPAWN_SETSCHEDULER == 0 +_GL_FUNCDECL_SYS (posix_spawnattr_getschedpolicy, int, + (const posix_spawnattr_t *_Restrict_ __attr, + int *_Restrict_ __schedpolicy) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_getschedpolicy, int, + (const posix_spawnattr_t *_Restrict_ __attr, + int *_Restrict_ __schedpolicy)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (posix_spawnattr_getschedpolicy); +# endif +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_getschedpolicy +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSCHEDPOLICY +_GL_WARN_ON_USE (posix_spawnattr_getschedpolicy, + "posix_spawnattr_getschedpolicy is unportable - " + "use gnulib module posix_spawnattr_getschedpolicy for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY@ +/* Store scheduling policy in the attribute structure. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_setschedpolicy rpl_posix_spawnattr_setschedpolicy +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_setschedpolicy, int, + (posix_spawnattr_t *__attr, int __schedpolicy) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawnattr_setschedpolicy, int, + (posix_spawnattr_t *__attr, int __schedpolicy)); +# else +# if !@HAVE_POSIX_SPAWN@ || POSIX_SPAWN_SETSCHEDULER == 0 +_GL_FUNCDECL_SYS (posix_spawnattr_setschedpolicy, int, + (posix_spawnattr_t *__attr, int __schedpolicy) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_setschedpolicy, int, + (posix_spawnattr_t *__attr, int __schedpolicy)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (posix_spawnattr_setschedpolicy); +# endif +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_setschedpolicy +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSCHEDPOLICY +_GL_WARN_ON_USE (posix_spawnattr_setschedpolicy, + "posix_spawnattr_setschedpolicy is unportable - " + "use gnulib module posix_spawnattr_setschedpolicy for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM@ +/* Get scheduling parameters from the attribute structure. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_getschedparam rpl_posix_spawnattr_getschedparam +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_getschedparam, int, + (const posix_spawnattr_t *_Restrict_ __attr, + struct sched_param *_Restrict_ __schedparam) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_getschedparam, int, + (const posix_spawnattr_t *_Restrict_ __attr, + struct sched_param *_Restrict_ __schedparam)); +# else +# if !@HAVE_POSIX_SPAWN@ || POSIX_SPAWN_SETSCHEDPARAM == 0 +_GL_FUNCDECL_SYS (posix_spawnattr_getschedparam, int, + (const posix_spawnattr_t *_Restrict_ __attr, + struct sched_param *_Restrict_ __schedparam) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_getschedparam, int, + (const posix_spawnattr_t *_Restrict_ __attr, + struct sched_param *_Restrict_ __schedparam)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (posix_spawnattr_getschedparam); +# endif +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_getschedparam +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSCHEDPARAM +_GL_WARN_ON_USE (posix_spawnattr_getschedparam, + "posix_spawnattr_getschedparam is unportable - " + "use gnulib module posix_spawnattr_getschedparam for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM@ +/* Store scheduling parameters in the attribute structure. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawnattr_setschedparam rpl_posix_spawnattr_setschedparam +# endif +_GL_FUNCDECL_RPL (posix_spawnattr_setschedparam, int, + (posix_spawnattr_t *_Restrict_ __attr, + const struct sched_param *_Restrict_ __schedparam) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawnattr_setschedparam, int, + (posix_spawnattr_t *_Restrict_ __attr, + const struct sched_param *_Restrict_ __schedparam)); +# else +# if !@HAVE_POSIX_SPAWN@ || POSIX_SPAWN_SETSCHEDPARAM == 0 +_GL_FUNCDECL_SYS (posix_spawnattr_setschedparam, int, + (posix_spawnattr_t *_Restrict_ __attr, + const struct sched_param *_Restrict_ __schedparam) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawnattr_setschedparam, int, + (posix_spawnattr_t *_Restrict_ __attr, + const struct sched_param *_Restrict_ __schedparam)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (posix_spawnattr_setschedparam); +# endif +#elif defined GNULIB_POSIXCHECK +# undef posix_spawnattr_setschedparam +# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSCHEDPARAM +_GL_WARN_ON_USE (posix_spawnattr_setschedparam, + "posix_spawnattr_setschedparam is unportable - " + "use gnulib module posix_spawnattr_setschedparam for portability"); +# endif +#endif + + +#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT@ +/* Initialize data structure for file attribute for 'spawn' call. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawn_file_actions_init rpl_posix_spawn_file_actions_init +# endif +_GL_FUNCDECL_RPL (posix_spawn_file_actions_init, int, + (posix_spawn_file_actions_t *__file_actions) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawn_file_actions_init, int, + (posix_spawn_file_actions_t *__file_actions)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawn_file_actions_init, int, + (posix_spawn_file_actions_t *__file_actions) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawn_file_actions_init, int, + (posix_spawn_file_actions_t *__file_actions)); +# endif +_GL_CXXALIASWARN (posix_spawn_file_actions_init); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawn_file_actions_init +# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_INIT +_GL_WARN_ON_USE (posix_spawn_file_actions_init, + "posix_spawn_file_actions_init is unportable - " + "use gnulib module posix_spawn_file_actions_init for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY@ +/* Free resources associated with FILE-ACTIONS. */ +# if @REPLACE_POSIX_SPAWN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawn_file_actions_destroy rpl_posix_spawn_file_actions_destroy +# endif +_GL_FUNCDECL_RPL (posix_spawn_file_actions_destroy, int, + (posix_spawn_file_actions_t *__file_actions) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawn_file_actions_destroy, int, + (posix_spawn_file_actions_t *__file_actions)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawn_file_actions_destroy, int, + (posix_spawn_file_actions_t *__file_actions) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawn_file_actions_destroy, int, + (posix_spawn_file_actions_t *__file_actions)); +# endif +_GL_CXXALIASWARN (posix_spawn_file_actions_destroy); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawn_file_actions_destroy +# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_DESTROY +_GL_WARN_ON_USE (posix_spawn_file_actions_destroy, + "posix_spawn_file_actions_destroy is unportable - " + "use gnulib module posix_spawn_file_actions_destroy for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN@ +/* Add an action to FILE-ACTIONS which tells the implementation to call + 'open' for the given file during the 'spawn' call. */ +# if @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawn_file_actions_addopen rpl_posix_spawn_file_actions_addopen +# endif +_GL_FUNCDECL_RPL (posix_spawn_file_actions_addopen, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + int __fd, + const char *_Restrict_ __path, int __oflag, mode_t __mode) + __THROW _GL_ARG_NONNULL ((1, 3))); +_GL_CXXALIAS_RPL (posix_spawn_file_actions_addopen, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + int __fd, + const char *_Restrict_ __path, int __oflag, mode_t __mode)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawn_file_actions_addopen, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + int __fd, + const char *_Restrict_ __path, int __oflag, mode_t __mode) + __THROW _GL_ARG_NONNULL ((1, 3))); +# endif +_GL_CXXALIAS_SYS (posix_spawn_file_actions_addopen, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + int __fd, + const char *_Restrict_ __path, int __oflag, mode_t __mode)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (posix_spawn_file_actions_addopen); +# endif +#elif defined GNULIB_POSIXCHECK +# undef posix_spawn_file_actions_addopen +# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN +_GL_WARN_ON_USE (posix_spawn_file_actions_addopen, + "posix_spawn_file_actions_addopen is unportable - " + "use gnulib module posix_spawn_file_actions_addopen for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE@ +/* Add an action to FILE-ACTIONS which tells the implementation to call + 'close' for the given file descriptor during the 'spawn' call. */ +# if @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawn_file_actions_addclose rpl_posix_spawn_file_actions_addclose +# endif +_GL_FUNCDECL_RPL (posix_spawn_file_actions_addclose, int, + (posix_spawn_file_actions_t *__file_actions, int __fd) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawn_file_actions_addclose, int, + (posix_spawn_file_actions_t *__file_actions, int __fd)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawn_file_actions_addclose, int, + (posix_spawn_file_actions_t *__file_actions, int __fd) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawn_file_actions_addclose, int, + (posix_spawn_file_actions_t *__file_actions, int __fd)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (posix_spawn_file_actions_addclose); +# endif +#elif defined GNULIB_POSIXCHECK +# undef posix_spawn_file_actions_addclose +# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE +_GL_WARN_ON_USE (posix_spawn_file_actions_addclose, + "posix_spawn_file_actions_addclose is unportable - " + "use gnulib module posix_spawn_file_actions_addclose for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2@ +/* Add an action to FILE-ACTIONS which tells the implementation to call + 'dup2' for the given file descriptors during the 'spawn' call. */ +# if @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawn_file_actions_adddup2 rpl_posix_spawn_file_actions_adddup2 +# endif +_GL_FUNCDECL_RPL (posix_spawn_file_actions_adddup2, int, + (posix_spawn_file_actions_t *__file_actions, + int __fd, int __newfd) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawn_file_actions_adddup2, int, + (posix_spawn_file_actions_t *__file_actions, + int __fd, int __newfd)); +# else +# if !@HAVE_POSIX_SPAWN@ +_GL_FUNCDECL_SYS (posix_spawn_file_actions_adddup2, int, + (posix_spawn_file_actions_t *__file_actions, + int __fd, int __newfd) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawn_file_actions_adddup2, int, + (posix_spawn_file_actions_t *__file_actions, + int __fd, int __newfd)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (posix_spawn_file_actions_adddup2); +# endif +#elif defined GNULIB_POSIXCHECK +# undef posix_spawn_file_actions_adddup2 +# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2 +_GL_WARN_ON_USE (posix_spawn_file_actions_adddup2, + "posix_spawn_file_actions_adddup2 is unportable - " + "use gnulib module posix_spawn_file_actions_adddup2 for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@ +/* Add an action to FILE-ACTIONS which tells the implementation to call + 'chdir' to the given directory during the 'spawn' call. */ +# if @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawn_file_actions_addchdir rpl_posix_spawn_file_actions_addchdir +# endif +_GL_FUNCDECL_RPL (posix_spawn_file_actions_addchdir, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + const char *_Restrict_ __path) + __THROW _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (posix_spawn_file_actions_addchdir, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + const char *_Restrict_ __path)); +# else +# if !@HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@ +_GL_FUNCDECL_SYS (posix_spawn_file_actions_addchdir, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + const char *_Restrict_ __path) + __THROW _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (posix_spawn_file_actions_addchdir, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + const char *_Restrict_ __path)); +# endif +_GL_CXXALIASWARN (posix_spawn_file_actions_addchdir); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawn_file_actions_addchdir +# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR +_GL_WARN_ON_USE (posix_spawn_file_actions_addchdir, + "posix_spawn_file_actions_addchdir is unportable - " + "use gnulib module posix_spawn_file_actions_addchdir for portability"); +# endif +#endif + +#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@ +/* Add an action to FILE-ACTIONS which tells the implementation to call + 'fchdir' to the given directory during the 'spawn' call. */ +# if @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define posix_spawn_file_actions_addfchdir rpl_posix_spawn_file_actions_addfchdir +# endif +_GL_FUNCDECL_RPL (posix_spawn_file_actions_addfchdir, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + int __fd) + __THROW _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_spawn_file_actions_addfchdir, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + int __fd)); +# else +# if !@HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@ +_GL_FUNCDECL_SYS (posix_spawn_file_actions_addfchdir, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + int __fd) + __THROW _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (posix_spawn_file_actions_addfchdir, int, + (posix_spawn_file_actions_t *_Restrict_ __file_actions, + int __fd)); +# endif +_GL_CXXALIASWARN (posix_spawn_file_actions_addfchdir); +#elif defined GNULIB_POSIXCHECK +# undef posix_spawn_file_actions_addfchdir +# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR +_GL_WARN_ON_USE (posix_spawn_file_actions_addfchdir, + "posix_spawn_file_actions_addfchdir is unportable - " + "use gnulib module posix_spawn_file_actions_addfchdir for portability"); +# endif +#endif + + +#endif /* _@GUARD_PREFIX@_SPAWN_H */ +#endif /* _@GUARD_PREFIX@_SPAWN_H */ diff --git a/lib/spawn_faction_addchdir.c b/lib/spawn_faction_addchdir.c new file mode 100644 index 00000000000..8fb6cb0f7d2 --- /dev/null +++ b/lib/spawn_faction_addchdir.c @@ -0,0 +1,70 @@ +/* Copyright (C) 2018-2020 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include +#include +#include + +#if REPLACE_POSIX_SPAWN +# include "spawn_int.h" +#endif + +/* Add an action to FILE-ACTIONS which tells the implementation to call + 'chdir' to the given directory during the 'spawn' call. */ +int +posix_spawn_file_actions_addchdir (posix_spawn_file_actions_t *file_actions, + const char *path) +#undef posix_spawn_file_actions_addchdir +{ +#if !REPLACE_POSIX_SPAWN + return posix_spawn_file_actions_addchdir_np (file_actions, path); +#else + { + /* Copy PATH, because the caller may free it before calling posix_spawn() + or posix_spawnp(). */ + char *path_copy = strdup (path); + if (path_copy == NULL) + return ENOMEM; + + /* Allocate more memory if needed. */ + if (file_actions->_used == file_actions->_allocated + && __posix_spawn_file_actions_realloc (file_actions) != 0) + { + /* This can only mean we ran out of memory. */ + free (path_copy); + return ENOMEM; + } + + { + struct __spawn_action *rec; + + /* Add the new value. */ + rec = &file_actions->_actions[file_actions->_used]; + rec->tag = spawn_do_chdir; + rec->action.chdir_action.path = path_copy; + + /* Account for the new entry. */ + ++file_actions->_used; + + return 0; + } + } +#endif +} diff --git a/lib/spawn_faction_adddup2.c b/lib/spawn_faction_adddup2.c new file mode 100644 index 00000000000..c00b0b49668 --- /dev/null +++ b/lib/spawn_faction_adddup2.c @@ -0,0 +1,70 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include +#include + +#if !_LIBC +# define __sysconf(open_max) getdtablesize () +#endif + +#if REPLACE_POSIX_SPAWN +# include "spawn_int.h" +#endif + +/* Add an action to FILE-ACTIONS which tells the implementation to call + 'dup2' for the given file descriptors during the 'spawn' call. */ +int +posix_spawn_file_actions_adddup2 (posix_spawn_file_actions_t *file_actions, + int fd, int newfd) +#undef posix_spawn_file_actions_adddup2 +{ + int maxfd = __sysconf (_SC_OPEN_MAX); + + /* Test for the validity of the file descriptor. */ + if (fd < 0 || newfd < 0 || fd >= maxfd || newfd >= maxfd) + return EBADF; + +#if !REPLACE_POSIX_SPAWN + return posix_spawn_file_actions_adddup2 (file_actions, fd, newfd); +#else + /* Allocate more memory if needed. */ + if (file_actions->_used == file_actions->_allocated + && __posix_spawn_file_actions_realloc (file_actions) != 0) + /* This can only mean we ran out of memory. */ + return ENOMEM; + + { + struct __spawn_action *rec; + + /* Add the new value. */ + rec = &file_actions->_actions[file_actions->_used]; + rec->tag = spawn_do_dup2; + rec->action.dup2_action.fd = fd; + rec->action.dup2_action.newfd = newfd; + + /* Account for the new entry. */ + ++file_actions->_used; + + return 0; + } +#endif +} diff --git a/lib/spawn_faction_destroy.c b/lib/spawn_faction_destroy.c new file mode 100644 index 00000000000..e9985f4a0d4 --- /dev/null +++ b/lib/spawn_faction_destroy.c @@ -0,0 +1,61 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include + +#if REPLACE_POSIX_SPAWN +# include "spawn_int.h" +#endif + +/* Initialize data structure for file attribute for 'spawn' call. */ +int +posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *file_actions) +#undef posix_spawn_file_actions_destroy +{ +#if !REPLACE_POSIX_SPAWN + return posix_spawn_file_actions_destroy (file_actions); +#else + int i; + + /* Free the paths in the open actions. */ + for (i = 0; i < file_actions->_used; ++i) + { + struct __spawn_action *sa = &file_actions->_actions[i]; + switch (sa->tag) + { + case spawn_do_open: + free (sa->action.open_action.path); + break; + case spawn_do_chdir: + free (sa->action.chdir_action.path); + break; + default: + /* No cleanup required. */ + break; + } + } + + /* Free the array of actions. */ + free (file_actions->_actions); + + return 0; +#endif +} diff --git a/lib/spawn_faction_init.c b/lib/spawn_faction_init.c new file mode 100644 index 00000000000..135605fb8c6 --- /dev/null +++ b/lib/spawn_faction_init.c @@ -0,0 +1,56 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include +#include +#include + +#include "spawn_int.h" + + +/* Function used to increase the size of the allocated array. This + function is called from the 'add'-functions. */ +int +__posix_spawn_file_actions_realloc (posix_spawn_file_actions_t *file_actions) +{ + int newalloc = file_actions->_allocated + 8; + void *newmem = realloc (file_actions->_actions, + newalloc * sizeof (struct __spawn_action)); + + if (newmem == NULL) + /* Not enough memory. */ + return ENOMEM; + + file_actions->_actions = (struct __spawn_action *) newmem; + file_actions->_allocated = newalloc; + + return 0; +} + + +/* Initialize data structure for file attribute for 'spawn' call. */ +int +posix_spawn_file_actions_init (posix_spawn_file_actions_t *file_actions) +{ + /* Simply clear all the elements. */ + memset (file_actions, '\0', sizeof (*file_actions)); + return 0; +} diff --git a/lib/spawn_int.h b/lib/spawn_int.h new file mode 100644 index 00000000000..60a94ddd55a --- /dev/null +++ b/lib/spawn_int.h @@ -0,0 +1,72 @@ +/* Copyright (C) 2000, 2008-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Data structure to contain the action information. */ +struct __spawn_action +{ + enum + { + spawn_do_close, + spawn_do_dup2, + spawn_do_open, + spawn_do_chdir, + spawn_do_fchdir + } tag; + + union + { + struct + { + int fd; + } close_action; + struct + { + int fd; + int newfd; + } dup2_action; + struct + { + int fd; + char *path; + int oflag; + mode_t mode; + } open_action; + struct + { + char *path; + } chdir_action; + struct + { + int fd; + } fchdir_action; + } action; +}; + +#if !_LIBC +# define __posix_spawn_file_actions_realloc gl_posix_spawn_file_actions_realloc +#endif +extern int __posix_spawn_file_actions_realloc (posix_spawn_file_actions_t * + file_actions); + +#if !_LIBC +# define __spawni gl_posix_spawn_internal +#endif +extern int __spawni (pid_t *pid, const char *path, + const posix_spawn_file_actions_t *file_actions, + const posix_spawnattr_t *attrp, const char *const argv[], + const char *const envp[], int use_path); diff --git a/lib/spawnattr_destroy.c b/lib/spawnattr_destroy.c new file mode 100644 index 00000000000..22a7d5a61a2 --- /dev/null +++ b/lib/spawnattr_destroy.c @@ -0,0 +1,28 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +/* Initialize data structure for file attribute for 'spawn' call. */ +int +posix_spawnattr_destroy (posix_spawnattr_t *attr) +{ + /* Nothing to do in the moment. */ + return 0; +} diff --git a/lib/spawnattr_init.c b/lib/spawnattr_init.c new file mode 100644 index 00000000000..99674488f81 --- /dev/null +++ b/lib/spawnattr_init.c @@ -0,0 +1,33 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include + +/* Initialize data structure for file attribute for 'spawn' call. */ +int +posix_spawnattr_init (posix_spawnattr_t *attr) +{ + /* All elements have to be initialized to the default values which + is generally zero. */ + memset (attr, '\0', sizeof (*attr)); + + return 0; +} diff --git a/lib/spawnattr_setdefault.c b/lib/spawnattr_setdefault.c new file mode 100644 index 00000000000..01c29e94847 --- /dev/null +++ b/lib/spawnattr_setdefault.c @@ -0,0 +1,33 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include + +/* Set signal mask for signals with default handling in ATTR to SIGDEFAULT. */ +int +posix_spawnattr_setsigdefault (posix_spawnattr_t *attr, + const sigset_t *sigdefault) +{ + /* Copy the sigset_t data to the user buffer. */ + memcpy (&attr->_sd, sigdefault, sizeof (sigset_t)); + + return 0; +} diff --git a/lib/spawnattr_setflags.c b/lib/spawnattr_setflags.c new file mode 100644 index 00000000000..084d5bcea4c --- /dev/null +++ b/lib/spawnattr_setflags.c @@ -0,0 +1,45 @@ +/* Copyright (C) 2000, 2004, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include +#include + +#define ALL_FLAGS (POSIX_SPAWN_RESETIDS \ + | POSIX_SPAWN_SETPGROUP \ + | POSIX_SPAWN_SETSIGDEF \ + | POSIX_SPAWN_SETSIGMASK \ + | POSIX_SPAWN_SETSCHEDPARAM \ + | POSIX_SPAWN_SETSCHEDULER \ + | POSIX_SPAWN_USEVFORK) + +/* Store flags in the attribute structure. */ +int +posix_spawnattr_setflags (posix_spawnattr_t *attr, short int flags) +{ + /* Check no invalid bits are set. */ + if (flags & ~ALL_FLAGS) + return EINVAL; + + /* Store the flag word. */ + attr->_flags = flags; + + return 0; +} diff --git a/lib/spawnattr_setpgroup.c b/lib/spawnattr_setpgroup.c new file mode 100644 index 00000000000..479457ad23e --- /dev/null +++ b/lib/spawnattr_setpgroup.c @@ -0,0 +1,32 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include + +/* Store process group ID in the attribute structure. */ +int +posix_spawnattr_setpgroup (posix_spawnattr_t *attr, pid_t pgroup) +{ + /* Store the process group ID. */ + attr->_pgrp = pgroup; + + return 0; +} diff --git a/lib/spawnattr_setsigmask.c b/lib/spawnattr_setsigmask.c new file mode 100644 index 00000000000..9b6f9ece38e --- /dev/null +++ b/lib/spawnattr_setsigmask.c @@ -0,0 +1,33 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include + +/* Set signal mask for the new process in ATTR to SIGMASK. */ +int +posix_spawnattr_setsigmask (posix_spawnattr_t *attr, + const sigset_t *sigmask) +{ + /* Copy the sigset_t data to the user buffer. */ + memcpy (&attr->_ss, sigmask, sizeof (sigset_t)); + + return 0; +} diff --git a/lib/spawni.c b/lib/spawni.c new file mode 100644 index 00000000000..182d13ff24c --- /dev/null +++ b/lib/spawni.c @@ -0,0 +1,349 @@ +/* Guts of POSIX spawn interface. Generic POSIX.1 version. + Copyright (C) 2000-2006, 2008-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include +#include "spawn_int.h" + +#include +#include + +#include +#ifndef O_LARGEFILE +# define O_LARGEFILE 0 +#endif + +#if _LIBC || HAVE_PATHS_H +# include +#else +# define _PATH_BSHELL BOURNE_SHELL +#endif + +#include +#include +#include +#include + +#if _LIBC +# include +#else +# define close_not_cancel close +# define open_not_cancel open +#endif + +#if _LIBC +# include +#else +# if !HAVE_SETEUID +# define seteuid(id) setresuid (-1, id, -1) +# endif +# if !HAVE_SETEGID +# define setegid(id) setresgid (-1, id, -1) +# endif +# define local_seteuid(id) seteuid (id) +# define local_setegid(id) setegid (id) +#endif + +#if _LIBC +# define alloca __alloca +# define execve __execve +# define dup2 __dup2 +# define fork __fork +# define getgid __getgid +# define getuid __getuid +# define sched_setparam __sched_setparam +# define sched_setscheduler __sched_setscheduler +# define setpgid __setpgid +# define sigaction __sigaction +# define sigismember __sigismember +# define sigprocmask __sigprocmask +# define strchrnul __strchrnul +# define vfork __vfork +#endif + + +/* The Unix standard contains a long explanation of the way to signal + an error after the fork() was successful. Since no new wait status + was wanted there is no way to signal an error using one of the + available methods. The committee chose to signal an error by a + normal program exit with the exit code 127. */ +#define SPAWN_ERROR 127 + + +#if defined _WIN32 && ! defined __CYGWIN__ + +/* Native Windows API. */ +int +__spawni (pid_t *pid, const char *file, + const posix_spawn_file_actions_t *file_actions, + const posix_spawnattr_t *attrp, const char *const argv[], + const char *const envp[], int use_path) +{ + /* Not yet implemented. */ + return ENOSYS; +} + +#else + + +/* Spawn a new process executing PATH with the attributes describes in *ATTRP. + Before running the process perform the actions described in FILE-ACTIONS. */ +int +__spawni (pid_t *pid, const char *file, + const posix_spawn_file_actions_t *file_actions, + const posix_spawnattr_t *attrp, const char *const argv[], + const char *const envp[], int use_path) +{ + pid_t new_pid; + char *path, *p, *name; + size_t len; + size_t pathlen; + + /* Do this once. */ + short int flags = attrp == NULL ? 0 : attrp->_flags; + + /* Avoid gcc warning + "variable 'flags' might be clobbered by 'longjmp' or 'vfork'" */ + (void) &flags; + + /* Generate the new process. */ +#if HAVE_VFORK + if ((flags & POSIX_SPAWN_USEVFORK) != 0 + /* If no major work is done, allow using vfork. Note that we + might perform the path searching. But this would be done by + a call to execvp(), too, and such a call must be OK according + to POSIX. */ + || ((flags & (POSIX_SPAWN_SETSIGMASK | POSIX_SPAWN_SETSIGDEF + | POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER + | POSIX_SPAWN_SETPGROUP | POSIX_SPAWN_RESETIDS)) == 0 + && file_actions == NULL)) + new_pid = vfork (); + else +#endif + new_pid = fork (); + + if (new_pid != 0) + { + if (new_pid < 0) + return errno; + + /* The call was successful. Store the PID if necessary. */ + if (pid != NULL) + *pid = new_pid; + + return 0; + } + + /* Set signal mask. */ + if ((flags & POSIX_SPAWN_SETSIGMASK) != 0 + && sigprocmask (SIG_SETMASK, &attrp->_ss, NULL) != 0) + _exit (SPAWN_ERROR); + + /* Set signal default action. */ + if ((flags & POSIX_SPAWN_SETSIGDEF) != 0) + { + /* We have to iterate over all signals. This could possibly be + done better but it requires system specific solutions since + the sigset_t data type can be very different on different + architectures. */ + int sig; + struct sigaction sa; + + memset (&sa, '\0', sizeof (sa)); + sa.sa_handler = SIG_DFL; + + for (sig = 1; sig <= NSIG; ++sig) + if (sigismember (&attrp->_sd, sig) != 0 + && sigaction (sig, &sa, NULL) != 0) + _exit (SPAWN_ERROR); + + } + +#if (_LIBC ? defined _POSIX_PRIORITY_SCHEDULING : HAVE_SCHED_SETPARAM && HAVE_SCHED_SETSCHEDULER) + /* Set the scheduling algorithm and parameters. */ + if ((flags & (POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER)) + == POSIX_SPAWN_SETSCHEDPARAM) + { + if (sched_setparam (0, &attrp->_sp) == -1) + _exit (SPAWN_ERROR); + } + else if ((flags & POSIX_SPAWN_SETSCHEDULER) != 0) + { + if (sched_setscheduler (0, attrp->_policy, + (flags & POSIX_SPAWN_SETSCHEDPARAM) != 0 + ? &attrp->_sp : NULL) == -1) + _exit (SPAWN_ERROR); + } +#endif + + /* Set the process group ID. */ + if ((flags & POSIX_SPAWN_SETPGROUP) != 0 + && setpgid (0, attrp->_pgrp) != 0) + _exit (SPAWN_ERROR); + + /* Set the effective user and group IDs. */ + if ((flags & POSIX_SPAWN_RESETIDS) != 0 + && (local_seteuid (getuid ()) != 0 + || local_setegid (getgid ()) != 0)) + _exit (SPAWN_ERROR); + + /* Execute the file actions. */ + if (file_actions != NULL) + { + int cnt; + + for (cnt = 0; cnt < file_actions->_used; ++cnt) + { + struct __spawn_action *action = &file_actions->_actions[cnt]; + + switch (action->tag) + { + case spawn_do_close: + if (close_not_cancel (action->action.close_action.fd) != 0) + /* Signal the error. */ + _exit (SPAWN_ERROR); + break; + + case spawn_do_open: + { + int new_fd = open_not_cancel (action->action.open_action.path, + action->action.open_action.oflag + | O_LARGEFILE, + action->action.open_action.mode); + + if (new_fd == -1) + /* The 'open' call failed. */ + _exit (SPAWN_ERROR); + + /* Make sure the desired file descriptor is used. */ + if (new_fd != action->action.open_action.fd) + { + if (dup2 (new_fd, action->action.open_action.fd) + != action->action.open_action.fd) + /* The 'dup2' call failed. */ + _exit (SPAWN_ERROR); + + if (close_not_cancel (new_fd) != 0) + /* The 'close' call failed. */ + _exit (SPAWN_ERROR); + } + } + break; + + case spawn_do_dup2: + if (dup2 (action->action.dup2_action.fd, + action->action.dup2_action.newfd) + != action->action.dup2_action.newfd) + /* The 'dup2' call failed. */ + _exit (SPAWN_ERROR); + break; + + case spawn_do_chdir: + if (chdir (action->action.chdir_action.path) < 0) + /* The 'chdir' call failed. */ + _exit (SPAWN_ERROR); + break; + + case spawn_do_fchdir: + if (fchdir (action->action.fchdir_action.fd) < 0) + /* The 'fchdir' call failed. */ + _exit (SPAWN_ERROR); + break; + } + } + } + + if (! use_path || strchr (file, '/') != NULL) + { + /* The FILE parameter is actually a path. */ + execve (file, (char * const *) argv, (char * const *) envp); + + /* Oh, oh. 'execve' returns. This is bad. */ + _exit (SPAWN_ERROR); + } + + /* We have to search for FILE on the path. */ + path = getenv ("PATH"); + if (path == NULL) + { +#if HAVE_CONFSTR + /* There is no 'PATH' in the environment. + The default search path is the current directory + followed by the path 'confstr' returns for '_CS_PATH'. */ + len = confstr (_CS_PATH, (char *) NULL, 0); + path = (char *) alloca (1 + len); + path[0] = ':'; + (void) confstr (_CS_PATH, path + 1, len); +#else + /* Pretend that the PATH contains only the current directory. */ + path = ""; +#endif + } + + len = strlen (file) + 1; + pathlen = strlen (path); + name = alloca (pathlen + len + 1); + /* Copy the file name at the top. */ + name = (char *) memcpy (name + pathlen + 1, file, len); + /* And add the slash. */ + *--name = '/'; + + p = path; + do + { + char *startp; + + path = p; + p = strchrnul (path, ':'); + + if (p == path) + /* Two adjacent colons, or a colon at the beginning or the end + of 'PATH' means to search the current directory. */ + startp = name + 1; + else + startp = (char *) memcpy (name - (p - path), path, p - path); + + /* Try to execute this name. If it works, execv will not return. */ + execve (startp, (char * const *) argv, (char * const *) envp); + + switch (errno) + { + case EACCES: + case ENOENT: + case ESTALE: + case ENOTDIR: + /* Those errors indicate the file is missing or not executable + by us, in which case we want to just try the next path + directory. */ + break; + + default: + /* Some other error means we found an executable file, but + something went wrong executing it; return the error to our + caller. */ + _exit (SPAWN_ERROR); + } + } + while (*p++ != '\0'); + + /* Return with an error. */ + _exit (SPAWN_ERROR); +} + +#endif diff --git a/lib/strchrnul.c b/lib/strchrnul.c new file mode 100644 index 00000000000..858d66fab18 --- /dev/null +++ b/lib/strchrnul.c @@ -0,0 +1,142 @@ +/* Searching in a string. + Copyright (C) 2003, 2007-2020 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +/* Find the first occurrence of C in S or the final NUL byte. */ +char * +strchrnul (const char *s, int c_in) +{ + /* On 32-bit hardware, choosing longword to be a 32-bit unsigned + long instead of a 64-bit uintmax_t tends to give better + performance. On 64-bit hardware, unsigned long is generally 64 + bits already. Change this typedef to experiment with + performance. */ + typedef unsigned long int longword; + + const unsigned char *char_ptr; + const longword *longword_ptr; + longword repeated_one; + longword repeated_c; + unsigned char c; + + c = (unsigned char) c_in; + if (!c) + return rawmemchr (s, 0); + + /* Handle the first few bytes by reading one byte at a time. + Do this until CHAR_PTR is aligned on a longword boundary. */ + for (char_ptr = (const unsigned char *) s; + (size_t) char_ptr % sizeof (longword) != 0; + ++char_ptr) + if (!*char_ptr || *char_ptr == c) + return (char *) char_ptr; + + longword_ptr = (const longword *) char_ptr; + + /* All these elucidatory comments refer to 4-byte longwords, + but the theory applies equally well to any size longwords. */ + + /* Compute auxiliary longword values: + repeated_one is a value which has a 1 in every byte. + repeated_c has c in every byte. */ + repeated_one = 0x01010101; + repeated_c = c | (c << 8); + repeated_c |= repeated_c << 16; + if (0xffffffffU < (longword) -1) + { + repeated_one |= repeated_one << 31 << 1; + repeated_c |= repeated_c << 31 << 1; + if (8 < sizeof (longword)) + { + size_t i; + + for (i = 64; i < sizeof (longword) * 8; i *= 2) + { + repeated_one |= repeated_one << i; + repeated_c |= repeated_c << i; + } + } + } + + /* Instead of the traditional loop which tests each byte, we will + test a longword at a time. The tricky part is testing if *any of + the four* bytes in the longword in question are equal to NUL or + c. We first use an xor with repeated_c. This reduces the task + to testing whether *any of the four* bytes in longword1 or + longword2 is zero. + + Let's consider longword1. We compute tmp = + ((longword1 - repeated_one) & ~longword1) & (repeated_one << 7). + That is, we perform the following operations: + 1. Subtract repeated_one. + 2. & ~longword1. + 3. & a mask consisting of 0x80 in every byte. + Consider what happens in each byte: + - If a byte of longword1 is zero, step 1 and 2 transform it into 0xff, + and step 3 transforms it into 0x80. A carry can also be propagated + to more significant bytes. + - If a byte of longword1 is nonzero, let its lowest 1 bit be at + position k (0 <= k <= 7); so the lowest k bits are 0. After step 1, + the byte ends in a single bit of value 0 and k bits of value 1. + After step 2, the result is just k bits of value 1: 2^k - 1. After + step 3, the result is 0. And no carry is produced. + So, if longword1 has only non-zero bytes, tmp is zero. + Whereas if longword1 has a zero byte, call j the position of the least + significant zero byte. Then the result has a zero at positions 0, ..., + j-1 and a 0x80 at position j. We cannot predict the result at the more + significant bytes (positions j+1..3), but it does not matter since we + already have a non-zero bit at position 8*j+7. + + The test whether any byte in longword1 or longword2 is zero is equivalent + to testing whether tmp1 is nonzero or tmp2 is nonzero. We can combine + this into a single test, whether (tmp1 | tmp2) is nonzero. + + This test can read more than one byte beyond the end of a string, + depending on where the terminating NUL is encountered. However, + this is considered safe since the initialization phase ensured + that the read will be aligned, therefore, the read will not cross + page boundaries and will not cause a fault. */ + + while (1) + { + longword longword1 = *longword_ptr ^ repeated_c; + longword longword2 = *longword_ptr; + + if (((((longword1 - repeated_one) & ~longword1) + | ((longword2 - repeated_one) & ~longword2)) + & (repeated_one << 7)) != 0) + break; + longword_ptr++; + } + + char_ptr = (const unsigned char *) longword_ptr; + + /* At this point, we know that one of the sizeof (longword) bytes + starting at char_ptr is == 0 or == c. On little-endian machines, + we could determine the first such byte without any further memory + accesses, just by looking at the tmp result from the last loop + iteration. But this does not work on big-endian machines. + Choose code that works in both cases. */ + + char_ptr = (unsigned char *) longword_ptr; + while (*char_ptr && (*char_ptr != c)) + char_ptr++; + return (char *) char_ptr; +} diff --git a/lib/strchrnul.valgrind b/lib/strchrnul.valgrind new file mode 100644 index 00000000000..a85608a7c76 --- /dev/null +++ b/lib/strchrnul.valgrind @@ -0,0 +1,28 @@ +# Suppress a valgrind message about use of uninitialized memory in strchrnul(). + +# Copyright (C) 2008-2020 Free Software Foundation, Inc. +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# This use is OK because it provides only a speedup. +{ + strchrnul-value4 + Memcheck:Value4 + fun:strchrnul +} +{ + strchrnul-value8 + Memcheck:Value8 + fun:strchrnul +} diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4 index 0971636c33d..e2a44efe621 100644 --- a/m4/gnulib-comp.m4 +++ b/m4/gnulib-comp.m4 @@ -139,6 +139,18 @@ AC_DEFUN([gl_EARLY], # Code from module openat-h: # Code from module pathmax: # Code from module pipe2: + # Code from module posix_spawn: + # Code from module posix_spawn-internal: + # Code from module posix_spawn_file_actions_addchdir: + # Code from module posix_spawn_file_actions_adddup2: + # Code from module posix_spawn_file_actions_destroy: + # Code from module posix_spawn_file_actions_init: + # Code from module posix_spawnattr_destroy: + # Code from module posix_spawnattr_init: + # Code from module posix_spawnattr_setflags: + # Code from module posix_spawnattr_setpgroup: + # Code from module posix_spawnattr_setsigdefault: + # Code from module posix_spawnattr_setsigmask: # Code from module pselect: # Code from module pthread_sigmask: # Code from module qcopy-acl: @@ -147,7 +159,9 @@ AC_DEFUN([gl_EARLY], # Code from module readlinkat: # Code from module regex: # Code from module root-uid: + # Code from module sched: # Code from module scratch_buffer: + # Code from module sh-filename: # Code from module sig2str: # Code from module sigdescr_np: # Code from module signal-h: @@ -156,6 +170,7 @@ AC_DEFUN([gl_EARLY], # Code from module snippet/c++defs: # Code from module snippet/warn-on-use: # Code from module socklen: + # Code from module spawn: # Code from module ssize_t: # Code from module stat-time: # Code from module std-gnu11: @@ -165,6 +180,7 @@ AC_DEFUN([gl_EARLY], # Code from module stdio: # Code from module stdlib: # Code from module stpcpy: + # Code from module strchrnul: # Code from module string: # Code from module strnlen: # Code from module strtoimax: @@ -403,6 +419,61 @@ AC_DEFUN([gl_INIT], gl_PATHMAX gl_FUNC_PIPE2 gl_UNISTD_MODULE_INDICATOR([pipe2]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawn]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawn]) + gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1 || test $HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR = 0 || test $REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR = 1; then + AC_LIBOBJ([spawn_faction_addchdir]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawn_file_actions_addchdir]) + gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2 + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1 || test $REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2 = 1; then + AC_LIBOBJ([spawn_faction_adddup2]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawn_file_actions_adddup2]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawn_faction_destroy]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawn_file_actions_destroy]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawn_faction_init]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawn_file_actions_init]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawnattr_destroy]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawnattr_destroy]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawnattr_init]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawnattr_init]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawnattr_setflags]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawnattr_setflags]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawnattr_setpgroup]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawnattr_setpgroup]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawnattr_setdefault]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawnattr_setsigdefault]) + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawnattr_setsigmask]) + fi + gl_SPAWN_MODULE_INDICATOR([posix_spawnattr_setsigmask]) gl_FUNC_PSELECT if test $HAVE_PSELECT = 0 || test $REPLACE_PSELECT = 1; then AC_LIBOBJ([pselect]) @@ -430,6 +501,7 @@ AC_DEFUN([gl_INIT], AC_LIBOBJ([regex]) gl_PREREQ_REGEX fi + gl_SCHED_H gl_FUNC_SIG2STR if test $ac_cv_func_sig2str = no; then AC_LIBOBJ([sig2str]) @@ -442,6 +514,7 @@ AC_DEFUN([gl_INIT], gl_STRING_MODULE_INDICATOR([sigdescr_np]) gl_SIGNAL_H gl_TYPE_SOCKLEN_T + gl_SPAWN_H gt_TYPE_SSIZE_T gl_STAT_TIME gl_STAT_BIRTHTIME @@ -528,9 +601,12 @@ AC_DEFUN([gl_INIT], gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31=false gl_gnulib_enabled_open=false gl_gnulib_enabled_03e0aaad4cb89ca757653bd367a6ccb7=false + gl_gnulib_enabled_332607f759618fb73dfc3076748afea7=false gl_gnulib_enabled_rawmemchr=false gl_gnulib_enabled_6099e9737f757db36c47fa9d9f02e88c=false gl_gnulib_enabled_scratch_buffer=false + gl_gnulib_enabled_cdeb0f2aaf9d280baa6526bfa1b07f70=false + gl_gnulib_enabled_strchrnul=false gl_gnulib_enabled_strtoll=false gl_gnulib_enabled_utimens=false gl_gnulib_enabled_682e609604ccaac6be382e4ee3a4eaec=false @@ -685,6 +761,20 @@ AC_DEFUN([gl_INIT], gl_gnulib_enabled_03e0aaad4cb89ca757653bd367a6ccb7=true fi } + func_gl_gnulib_m4code_332607f759618fb73dfc3076748afea7 () + { + if ! $gl_gnulib_enabled_332607f759618fb73dfc3076748afea7; then + gl_POSIX_SPAWN + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + AC_LIBOBJ([spawni]) + gl_PREREQ_POSIX_SPAWN_INTERNAL + fi + gl_gnulib_enabled_332607f759618fb73dfc3076748afea7=true + func_gl_gnulib_m4code_open + func_gl_gnulib_m4code_cdeb0f2aaf9d280baa6526bfa1b07f70 + func_gl_gnulib_m4code_strchrnul + fi + } func_gl_gnulib_m4code_rawmemchr () { if ! $gl_gnulib_enabled_rawmemchr; then @@ -709,6 +799,28 @@ AC_DEFUN([gl_INIT], gl_gnulib_enabled_scratch_buffer=true fi } + func_gl_gnulib_m4code_cdeb0f2aaf9d280baa6526bfa1b07f70 () + { + if ! $gl_gnulib_enabled_cdeb0f2aaf9d280baa6526bfa1b07f70; then + gl_SH_FILENAME + gl_gnulib_enabled_cdeb0f2aaf9d280baa6526bfa1b07f70=true + fi + } + func_gl_gnulib_m4code_strchrnul () + { + if ! $gl_gnulib_enabled_strchrnul; then + gl_FUNC_STRCHRNUL + if test $HAVE_STRCHRNUL = 0 || test $REPLACE_STRCHRNUL = 1; then + AC_LIBOBJ([strchrnul]) + gl_PREREQ_STRCHRNUL + fi + gl_STRING_MODULE_INDICATOR([strchrnul]) + gl_gnulib_enabled_strchrnul=true + if test $HAVE_STRCHRNUL = 0 || test $REPLACE_STRCHRNUL = 1; then + func_gl_gnulib_m4code_rawmemchr + fi + fi + } func_gl_gnulib_m4code_strtoll () { if ! $gl_gnulib_enabled_strtoll; then @@ -791,6 +903,12 @@ AC_DEFUN([gl_INIT], if case $host_os in mingw*) false;; *) test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1;; esac; then func_gl_gnulib_m4code_open fi + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1; then + func_gl_gnulib_m4code_332607f759618fb73dfc3076748afea7 + fi + if test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1 || test $REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2 = 1; then + func_gl_gnulib_m4code_getdtablesize + fi if test $HAVE_READLINKAT = 0 || test $REPLACE_READLINKAT = 1; then func_gl_gnulib_m4code_260941c0e5dc67ec9e87d1fb321c300b fi @@ -830,9 +948,12 @@ AC_DEFUN([gl_INIT], AM_CONDITIONAL([gl_GNULIB_ENABLED_5264294aa0a5557541b53c8c741f7f31], [$gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31]) AM_CONDITIONAL([gl_GNULIB_ENABLED_open], [$gl_gnulib_enabled_open]) AM_CONDITIONAL([gl_GNULIB_ENABLED_03e0aaad4cb89ca757653bd367a6ccb7], [$gl_gnulib_enabled_03e0aaad4cb89ca757653bd367a6ccb7]) + AM_CONDITIONAL([gl_GNULIB_ENABLED_332607f759618fb73dfc3076748afea7], [$gl_gnulib_enabled_332607f759618fb73dfc3076748afea7]) AM_CONDITIONAL([gl_GNULIB_ENABLED_rawmemchr], [$gl_gnulib_enabled_rawmemchr]) AM_CONDITIONAL([gl_GNULIB_ENABLED_6099e9737f757db36c47fa9d9f02e88c], [$gl_gnulib_enabled_6099e9737f757db36c47fa9d9f02e88c]) AM_CONDITIONAL([gl_GNULIB_ENABLED_scratch_buffer], [$gl_gnulib_enabled_scratch_buffer]) + AM_CONDITIONAL([gl_GNULIB_ENABLED_cdeb0f2aaf9d280baa6526bfa1b07f70], [$gl_gnulib_enabled_cdeb0f2aaf9d280baa6526bfa1b07f70]) + AM_CONDITIONAL([gl_GNULIB_ENABLED_strchrnul], [$gl_gnulib_enabled_strchrnul]) AM_CONDITIONAL([gl_GNULIB_ENABLED_strtoll], [$gl_gnulib_enabled_strtoll]) AM_CONDITIONAL([gl_GNULIB_ENABLED_utimens], [$gl_gnulib_enabled_utimens]) AM_CONDITIONAL([gl_GNULIB_ENABLED_682e609604ccaac6be382e4ee3a4eaec], [$gl_gnulib_enabled_682e609604ccaac6be382e4ee3a4eaec]) @@ -1113,6 +1234,7 @@ AC_DEFUN([gl_FILE_LIST], [ lib/regex_internal.h lib/regexec.c lib/root-uid.h + lib/sched.in.h lib/scratch_buffer.h lib/set-permissions.c lib/sha1.c @@ -1125,6 +1247,20 @@ AC_DEFUN([gl_FILE_LIST], [ lib/sig2str.h lib/sigdescr_np.c lib/signal.in.h + lib/spawn.c + lib/spawn.in.h + lib/spawn_faction_addchdir.c + lib/spawn_faction_adddup2.c + lib/spawn_faction_destroy.c + lib/spawn_faction_init.c + lib/spawn_int.h + lib/spawnattr_destroy.c + lib/spawnattr_init.c + lib/spawnattr_setdefault.c + lib/spawnattr_setflags.c + lib/spawnattr_setpgroup.c + lib/spawnattr_setsigmask.c + lib/spawni.c lib/stat-time.c lib/stat-time.h lib/stdalign.in.h @@ -1135,6 +1271,8 @@ AC_DEFUN([gl_FILE_LIST], [ lib/stdlib.in.h lib/stpcpy.c lib/str-two-way.h + lib/strchrnul.c + lib/strchrnul.valgrind lib/strftime.h lib/string.in.h lib/strnlen.c @@ -1248,12 +1386,16 @@ AC_DEFUN([gl_FILE_LIST], [ m4/pathmax.m4 m4/pid_t.m4 m4/pipe2.m4 + m4/posix_spawn.m4 + m4/posix_spawn_faction_addchdir.m4 m4/pselect.m4 m4/pthread_sigmask.m4 m4/rawmemchr.m4 m4/readlink.m4 m4/readlinkat.m4 m4/regex.m4 + m4/sched_h.m4 + m4/sh-filename.m4 m4/sha1.m4 m4/sha256.m4 m4/sha512.m4 @@ -1261,6 +1403,7 @@ AC_DEFUN([gl_FILE_LIST], [ m4/sigdescr_np.m4 m4/signal_h.m4 m4/socklen.m4 + m4/spawn_h.m4 m4/ssize_t.m4 m4/stat-time.m4 m4/std-gnu11.m4 @@ -1270,6 +1413,7 @@ AC_DEFUN([gl_FILE_LIST], [ m4/stdio_h.m4 m4/stdlib_h.m4 m4/stpcpy.m4 + m4/strchrnul.m4 m4/string_h.m4 m4/strnlen.m4 m4/strtoimax.m4 diff --git a/m4/posix_spawn.m4 b/m4/posix_spawn.m4 new file mode 100644 index 00000000000..59e56fcb5f2 --- /dev/null +++ b/m4/posix_spawn.m4 @@ -0,0 +1,678 @@ +# posix_spawn.m4 serial 19 +dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Tests whether the entire posix_spawn facility is available. +AC_DEFUN([gl_POSIX_SPAWN], +[ + AC_REQUIRE([gl_POSIX_SPAWN_BODY]) +]) + +AC_DEFUN([gl_POSIX_SPAWN_BODY], +[ + AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) + AC_REQUIRE([gl_HAVE_POSIX_SPAWN]) + dnl Assume that when the main function exists, all the others, + dnl except posix_spawnattr_{get,set}sched*, are available as well. + dnl AC_CHECK_FUNCS_ONCE([posix_spawnp]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_init]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_addclose]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_adddup2]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_addopen]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_destroy]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_init]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_getflags]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_setflags]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_getpgroup]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_setpgroup]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_getsigdefault]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_setsigdefault]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_getsigmask]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_setsigmask]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_destroy]) + if test $ac_cv_func_posix_spawn = yes; then + m4_ifdef([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR], + [dnl Module 'posix_spawn_file_actions_addchdir' is present. + AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_addchdir_np]) + if test $ac_cv_func_posix_spawn_file_actions_addchdir_np = no; then + dnl In order to implement the posix_spawn_file_actions_addchdir + dnl function, we need to replace the entire posix_spawn facility. + REPLACE_POSIX_SPAWN=1 + fi + ]) + m4_ifdef([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR], + [dnl Module 'posix_spawn_file_actions_addfchdir' is present. + AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_addfchdir_np]) + if test $ac_cv_func_posix_spawn_file_actions_addfchdir_np = no; then + dnl In order to implement the posix_spawn_file_actions_addfchdir + dnl function, we need to replace the entire posix_spawn facility. + REPLACE_POSIX_SPAWN=1 + fi + ]) + if test $REPLACE_POSIX_SPAWN = 0; then + gl_POSIX_SPAWN_WORKS + case "$gl_cv_func_posix_spawn_works" in + *yes) ;; + *) REPLACE_POSIX_SPAWN=1 ;; + esac + fi + if test $REPLACE_POSIX_SPAWN = 0; then + gl_POSIX_SPAWN_SECURE + case "$gl_cv_func_posix_spawn_secure_exec" in + *yes) ;; + *) REPLACE_POSIX_SPAWN=1 ;; + esac + case "$gl_cv_func_posix_spawnp_secure_exec" in + *yes) ;; + *) REPLACE_POSIX_SPAWN=1 ;; + esac + fi + if test $REPLACE_POSIX_SPAWN = 0; then + dnl Assume that these functions are available if POSIX_SPAWN_SETSCHEDULER + dnl evaluates to nonzero. + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_getschedpolicy]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_setschedpolicy]) + AC_CACHE_CHECK([whether posix_spawnattr_setschedpolicy is supported], + [gl_cv_func_spawnattr_setschedpolicy], + [AC_EGREP_CPP([POSIX scheduling supported], [ +#include +#if POSIX_SPAWN_SETSCHEDULER + POSIX scheduling supported +#endif +], + [gl_cv_func_spawnattr_setschedpolicy=yes], + [gl_cv_func_spawnattr_setschedpolicy=no]) + ]) + dnl Assume that these functions are available if POSIX_SPAWN_SETSCHEDPARAM + dnl evaluates to nonzero. + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_getschedparam]) + dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_setschedparam]) + AC_CACHE_CHECK([whether posix_spawnattr_setschedparam is supported], + [gl_cv_func_spawnattr_setschedparam], + [AC_EGREP_CPP([POSIX scheduling supported], [ +#include +#if POSIX_SPAWN_SETSCHEDPARAM + POSIX scheduling supported +#endif +], + [gl_cv_func_spawnattr_setschedparam=yes], + [gl_cv_func_spawnattr_setschedparam=no]) + ]) + fi + fi + if test $ac_cv_func_posix_spawn != yes || test $REPLACE_POSIX_SPAWN = 1; then + AC_DEFINE([REPLACE_POSIX_SPAWN], [1], + [Define if gnulib uses its own posix_spawn and posix_spawnp functions.]) + fi +]) + +dnl Test whether posix_spawn actually works. +dnl posix_spawn on AIX 5.3..6.1 has two bugs: +dnl 1) When it fails to execute the program, the child process exits with +dnl exit() rather than _exit(), which causes the stdio buffers to be +dnl flushed. Reported by Rainer Tammer. +dnl 2) The posix_spawn_file_actions_addopen function does not support file +dnl names that contain a '*'. +dnl posix_spawn on AIX 5.3..6.1 has also a third bug: It does not work +dnl when POSIX threads are used. But we don't test against this bug here. +AC_DEFUN([gl_POSIX_SPAWN_WORKS], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether posix_spawn works], [gl_cv_func_posix_spawn_works], + [if test $cross_compiling = no; then + AC_LINK_IFELSE([AC_LANG_SOURCE([[ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +]GL_MDA_DEFINES[ + +extern char **environ; + +#ifndef STDIN_FILENO +# define STDIN_FILENO 0 +#endif +#ifndef STDOUT_FILENO +# define STDOUT_FILENO 1 +#endif +#ifndef STDERR_FILENO +# define STDERR_FILENO 2 +#endif + +#ifndef WTERMSIG +# define WTERMSIG(x) ((x) & 0x7f) +#endif +#ifndef WIFEXITED +# define WIFEXITED(x) (WTERMSIG (x) == 0) +#endif +#ifndef WEXITSTATUS +# define WEXITSTATUS(x) (((x) >> 8) & 0xff) +#endif + +#define CHILD_PROGRAM_FILENAME "/non/exist/ent" + +static int +fd_safer (int fd) +{ + if (0 <= fd && fd <= 2) + { + int f = fd_safer (dup (fd)); + int e = errno; + close (fd); + errno = e; + fd = f; + } + + return fd; +} + +int +main () +{ + char *argv[2] = { CHILD_PROGRAM_FILENAME, NULL }; + int ofd[2]; + sigset_t blocked_signals; + sigset_t fatal_signal_set; + posix_spawn_file_actions_t actions; + bool actions_allocated; + posix_spawnattr_t attrs; + bool attrs_allocated; + int err; + pid_t child; + int status; + int exitstatus; + + setvbuf (stdout, NULL, _IOFBF, 0); + puts ("This should be seen only once."); + if (pipe (ofd) < 0 || (ofd[1] = fd_safer (ofd[1])) < 0) + { + perror ("cannot create pipe"); + exit (1); + } + sigprocmask (SIG_SETMASK, NULL, &blocked_signals); + sigemptyset (&fatal_signal_set); + sigaddset (&fatal_signal_set, SIGINT); + sigaddset (&fatal_signal_set, SIGTERM); + sigaddset (&fatal_signal_set, SIGHUP); + sigaddset (&fatal_signal_set, SIGPIPE); + sigprocmask (SIG_BLOCK, &fatal_signal_set, NULL); + actions_allocated = false; + attrs_allocated = false; + if ((err = posix_spawn_file_actions_init (&actions)) != 0 + || (actions_allocated = true, + (err = posix_spawn_file_actions_adddup2 (&actions, ofd[0], STDIN_FILENO)) != 0 + || (err = posix_spawn_file_actions_addclose (&actions, ofd[0])) != 0 + || (err = posix_spawn_file_actions_addclose (&actions, ofd[1])) != 0 + || (err = posix_spawnattr_init (&attrs)) != 0 + || (attrs_allocated = true, + (err = posix_spawnattr_setsigmask (&attrs, &blocked_signals)) != 0 + || (err = posix_spawnattr_setflags (&attrs, POSIX_SPAWN_SETSIGMASK)) != 0) + || (err = posix_spawnp (&child, CHILD_PROGRAM_FILENAME, &actions, &attrs, argv, environ)) != 0)) + { + if (actions_allocated) + posix_spawn_file_actions_destroy (&actions); + if (attrs_allocated) + posix_spawnattr_destroy (&attrs); + sigprocmask (SIG_UNBLOCK, &fatal_signal_set, NULL); + if (err == ENOENT) + return 0; + else + { + errno = err; + perror ("subprocess failed"); + exit (1); + } + } + posix_spawn_file_actions_destroy (&actions); + posix_spawnattr_destroy (&attrs); + sigprocmask (SIG_UNBLOCK, &fatal_signal_set, NULL); + close (ofd[0]); + close (ofd[1]); + status = 0; + while (waitpid (child, &status, 0) != child) + ; + if (!WIFEXITED (status)) + { + fprintf (stderr, "subprocess terminated with unexpected wait status %d\n", status); + exit (1); + } + exitstatus = WEXITSTATUS (status); + if (exitstatus != 127) + { + fprintf (stderr, "subprocess terminated with unexpected exit status %d\n", exitstatus); + exit (1); + } + return 0; +} +]])], + [if test -s conftest$ac_exeext \ + && ./conftest$ac_exeext > conftest.out \ + && echo 'This should be seen only once.' > conftest.ok \ + && cmp conftest.out conftest.ok >/dev/null 2>&1; then + gl_cv_func_posix_spawn_works=yes + else + gl_cv_func_posix_spawn_works=no + fi], + [gl_cv_func_posix_spawn_works=no]) + if test $gl_cv_func_posix_spawn_works = yes; then + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +/* Test whether posix_spawn_file_actions_addopen supports filename arguments + that contain special characters such as '*'. */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +]GL_MDA_DEFINES[ + +extern char **environ; + +#ifndef STDIN_FILENO +# define STDIN_FILENO 0 +#endif +#ifndef STDOUT_FILENO +# define STDOUT_FILENO 1 +#endif +#ifndef STDERR_FILENO +# define STDERR_FILENO 2 +#endif + +#ifndef WTERMSIG +# define WTERMSIG(x) ((x) & 0x7f) +#endif +#ifndef WIFEXITED +# define WIFEXITED(x) (WTERMSIG (x) == 0) +#endif +#ifndef WEXITSTATUS +# define WEXITSTATUS(x) (((x) >> 8) & 0xff) +#endif + +#define CHILD_PROGRAM_FILENAME "conftest" +#define DATA_FILENAME "conftest%=*#?" + +static int +parent_main (void) +{ + FILE *fp; + char *argv[3] = { CHILD_PROGRAM_FILENAME, "-child", NULL }; + posix_spawn_file_actions_t actions; + bool actions_allocated; + int err; + pid_t child; + int status; + int exitstatus; + + /* Create a data file with specific contents. */ + fp = fopen (DATA_FILENAME, "wb"); + if (fp == NULL) + { + perror ("cannot create data file"); + return 1; + } + fwrite ("Halle Potta", 1, 11, fp); + if (fflush (fp) || fclose (fp)) + { + perror ("cannot prepare data file"); + return 2; + } + + /* Avoid reading from our stdin, as it could block. */ + freopen ("/dev/null", "rb", stdin); + + /* Test whether posix_spawn_file_actions_addopen with this file name + actually works, but spawning a child that reads from this file. */ + actions_allocated = false; + if ((err = posix_spawn_file_actions_init (&actions)) != 0 + || (actions_allocated = true, + (err = posix_spawn_file_actions_addopen (&actions, STDIN_FILENO, DATA_FILENAME, O_RDONLY, 0600)) != 0 + || (err = posix_spawn (&child, CHILD_PROGRAM_FILENAME, &actions, NULL, argv, environ)) != 0)) + { + if (actions_allocated) + posix_spawn_file_actions_destroy (&actions); + errno = err; + perror ("subprocess failed"); + return 3; + } + posix_spawn_file_actions_destroy (&actions); + status = 0; + while (waitpid (child, &status, 0) != child) + ; + if (!WIFEXITED (status)) + { + fprintf (stderr, "subprocess terminated with unexpected wait status %d\n", status); + return 4; + } + exitstatus = WEXITSTATUS (status); + if (exitstatus != 0) + { + fprintf (stderr, "subprocess terminated with unexpected exit status %d\n", exitstatus); + return 5; + } + return 0; +} + +static int +child_main (void) +{ + char buf[1024]; + + /* See if reading from STDIN_FILENO yields the expected contents. */ + if (fread (buf, 1, sizeof (buf), stdin) == 11 + && memcmp (buf, "Halle Potta", 11) == 0) + return 0; + else + return 8; +} + +static void +cleanup_then_die (int sig) +{ + /* Clean up data file. */ + unlink (DATA_FILENAME); + + /* Re-raise the signal and die from it. */ + signal (sig, SIG_DFL); + raise (sig); +} + +int +main (int argc, char *argv[]) +{ + int exitstatus; + + if (!(argc > 1 && strcmp (argv[1], "-child") == 0)) + { + /* This is the parent process. */ + signal (SIGINT, cleanup_then_die); + signal (SIGTERM, cleanup_then_die); + #ifdef SIGHUP + signal (SIGHUP, cleanup_then_die); + #endif + + exitstatus = parent_main (); + } + else + { + /* This is the child process. */ + + exitstatus = child_main (); + } + unlink (DATA_FILENAME); + return exitstatus; +} +]])], + [], + [gl_cv_func_posix_spawn_works=no]) + fi + else + case "$host_os" in + aix*) gl_cv_func_posix_spawn_works="guessing no";; + *) gl_cv_func_posix_spawn_works="guessing yes";; + esac + fi + ]) +]) + +dnl Test whether posix_spawn and posix_spawnp are secure. +AC_DEFUN([gl_POSIX_SPAWN_SECURE], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + dnl On many platforms, posix_spawn or posix_spawnp allow executing a + dnl script without a '#!' marker as a shell script. This is unsecure. + AC_CACHE_CHECK([whether posix_spawn rejects scripts without shebang], + [gl_cv_func_posix_spawn_secure_exec], + [echo ':' > conftest.scr + chmod a+x conftest.scr + AC_RUN_IFELSE([AC_LANG_SOURCE([[ + #include + #include + #include + #include + #include + int + main () + { + const char *prog_path = "./conftest.scr"; + const char *prog_argv[2] = { prog_path, NULL }; + const char *environment[2] = { "PATH=.", NULL }; + pid_t child; + int status; + int err = posix_spawn (&child, prog_path, NULL, NULL, + (char **) prog_argv, (char **) environment); + if (err == ENOEXEC) + return 0; + if (err != 0) + return 1; + status = 0; + while (waitpid (child, &status, 0) != child) + ; + if (!WIFEXITED (status)) + return 2; + if (WEXITSTATUS (status) != 127) + return 3; + return 0; + } + ]])], + [gl_cv_func_posix_spawn_secure_exec=yes], + [gl_cv_func_posix_spawn_secure_exec=no], + [case "$host_os" in + # Guess no on GNU/Hurd. + gnu*) + gl_cv_func_posix_spawn_secure_exec="guessing no" ;; + # Guess yes on all other platforms. + *) + gl_cv_func_posix_spawn_secure_exec="guessing yes" ;; + esac + ]) + rm -f conftest.scr + ]) + AC_CACHE_CHECK([whether posix_spawnp rejects scripts without shebang], + [gl_cv_func_posix_spawnp_secure_exec], + [echo ':' > conftest.scr + chmod a+x conftest.scr + AC_RUN_IFELSE([AC_LANG_SOURCE([[ + #include + #include + #include + #include + #include + int + main () + { + const char *prog_path = "./conftest.scr"; + const char *prog_argv[2] = { prog_path, NULL }; + const char *environment[2] = { "PATH=.", NULL }; + pid_t child; + int status; + int err = posix_spawnp (&child, prog_path, NULL, NULL, + (char **) prog_argv, (char **) environment); + if (err == ENOEXEC) + return 0; + if (err != 0) + return 1; + status = 0; + while (waitpid (child, &status, 0) != child) + ; + if (!WIFEXITED (status)) + return 2; + if (WEXITSTATUS (status) != 127) + return 3; + return 0; + } + ]])], + [gl_cv_func_posix_spawnp_secure_exec=yes], + [gl_cv_func_posix_spawnp_secure_exec=no], + [case "$host_os" in + # Guess yes on glibc systems (glibc >= 2.15 actually) except GNU/Hurd, + # musl libc, NetBSD. + *-gnu* | *-musl* | netbsd*) + gl_cv_func_posix_spawnp_secure_exec="guessing yes" ;; + # Guess no on GNU/Hurd, macOS, FreeBSD, OpenBSD, AIX, Solaris, Cygwin. + gnu* | darwin* | freebsd* | dragonfly* | openbsd* | aix* | solaris* | cygwin*) + gl_cv_func_posix_spawnp_secure_exec="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) + gl_cv_func_posix_spawnp_secure_exec="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.scr + ]) +]) + +# Prerequisites of lib/spawni.c. +AC_DEFUN([gl_PREREQ_POSIX_SPAWN_INTERNAL], +[ + AC_CHECK_HEADERS([paths.h]) + AC_CHECK_FUNCS([confstr sched_setparam sched_setscheduler setegid seteuid vfork]) +]) + +AC_DEFUN([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE], +[ + AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + gl_POSIX_SPAWN + if test $REPLACE_POSIX_SPAWN = 1; then + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=1 + else + dnl On musl libc and Solaris 11.0, posix_spawn_file_actions_addclose + dnl succeeds even if the fd argument is out of range. + AC_CACHE_CHECK([whether posix_spawn_file_actions_addclose works], + [gl_cv_func_posix_spawn_file_actions_addclose_works], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include +int main () +{ + posix_spawn_file_actions_t actions; + if (posix_spawn_file_actions_init (&actions) != 0) + return 1; + if (posix_spawn_file_actions_addclose (&actions, 10000000) == 0) + return 2; + return 0; +}]])], + [gl_cv_func_posix_spawn_file_actions_addclose_works=yes], + [gl_cv_func_posix_spawn_file_actions_addclose_works=no], + [# Guess no on musl libc and Solaris, yes otherwise. + case "$host_os" in + *-musl*) gl_cv_func_posix_spawn_file_actions_addclose_works="guessing no" ;; + solaris*) gl_cv_func_posix_spawn_file_actions_addclose_works="guessing no" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_posix_spawn_file_actions_addclose_works="guessing no" ;; + *) gl_cv_func_posix_spawn_file_actions_addclose_works="guessing yes" ;; + esac + ]) + ]) + case "$gl_cv_func_posix_spawn_file_actions_addclose_works" in + *yes) ;; + *) REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=1 ;; + esac + fi +]) + +AC_DEFUN([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2], +[ + AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + gl_POSIX_SPAWN + if test $REPLACE_POSIX_SPAWN = 1; then + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=1 + else + dnl On musl libc and Solaris 11.0, posix_spawn_file_actions_adddup2 + dnl succeeds even if the fd argument is out of range. + AC_CACHE_CHECK([whether posix_spawn_file_actions_adddup2 works], + [gl_cv_func_posix_spawn_file_actions_adddup2_works], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include +int main () +{ + posix_spawn_file_actions_t actions; + if (posix_spawn_file_actions_init (&actions) != 0) + return 1; + if (posix_spawn_file_actions_adddup2 (&actions, 10000000, 2) == 0) + return 2; + return 0; +}]])], + [gl_cv_func_posix_spawn_file_actions_adddup2_works=yes], + [gl_cv_func_posix_spawn_file_actions_adddup2_works=no], + [# Guess no on musl libc and Solaris, yes otherwise. + case "$host_os" in + *-musl*) gl_cv_func_posix_spawn_file_actions_adddup2_works="guessing no";; + solaris*) gl_cv_func_posix_spawn_file_actions_adddup2_works="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_posix_spawn_file_actions_adddup2_works="guessing no" ;; + *) gl_cv_func_posix_spawn_file_actions_adddup2_works="guessing yes";; + esac + ]) + ]) + case "$gl_cv_func_posix_spawn_file_actions_adddup2_works" in + *yes) ;; + *) REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=1 ;; + esac + fi +]) + +AC_DEFUN([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN], +[ + AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + gl_POSIX_SPAWN + if test $REPLACE_POSIX_SPAWN = 1; then + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=1 + else + dnl On musl libc and Solaris 11.0, posix_spawn_file_actions_addopen + dnl succeeds even if the fd argument is out of range. + AC_CACHE_CHECK([whether posix_spawn_file_actions_addopen works], + [gl_cv_func_posix_spawn_file_actions_addopen_works], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include +#include +int main () +{ + posix_spawn_file_actions_t actions; + if (posix_spawn_file_actions_init (&actions) != 0) + return 1; + if (posix_spawn_file_actions_addopen (&actions, 10000000, "foo", 0, O_RDONLY) + == 0) + return 2; + return 0; +}]])], + [gl_cv_func_posix_spawn_file_actions_addopen_works=yes], + [gl_cv_func_posix_spawn_file_actions_addopen_works=no], + [# Guess no on musl libc and Solaris, yes otherwise. + case "$host_os" in + *-musl*) gl_cv_func_posix_spawn_file_actions_addopen_works="guessing no";; + solaris*) gl_cv_func_posix_spawn_file_actions_addopen_works="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_posix_spawn_file_actions_addopen_works="guessing no" ;; + *) gl_cv_func_posix_spawn_file_actions_addopen_works="guessing yes";; + esac + ]) + ]) + case "$gl_cv_func_posix_spawn_file_actions_addopen_works" in + *yes) ;; + *) REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=1 ;; + esac + fi +]) diff --git a/m4/posix_spawn_faction_addchdir.m4 b/m4/posix_spawn_faction_addchdir.m4 new file mode 100644 index 00000000000..1ce7153d1d1 --- /dev/null +++ b/m4/posix_spawn_faction_addchdir.m4 @@ -0,0 +1,20 @@ +# posix_spawn_faction_addchdir.m4 serial 1 +dnl Copyright (C) 2018-2020 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR], +[ + AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + gl_POSIX_SPAWN + AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_addchdir posix_spawn_file_actions_addchdir_np]) + if test $ac_cv_func_posix_spawn_file_actions_addchdir = yes; then + dnl This function is not yet standardized. Therefore override the + dnl system's implementation always. + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=1 + else + HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=0 + fi +]) diff --git a/m4/sched_h.m4 b/m4/sched_h.m4 new file mode 100644 index 00000000000..af0c43de079 --- /dev/null +++ b/m4/sched_h.m4 @@ -0,0 +1,91 @@ +# sched_h.m4 serial 12 +dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Bruno Haible. + +AC_DEFUN([gl_SCHED_H], +[ + dnl Use AC_REQUIRE here, so that the default behavior below is expanded + dnl once only, before all statements that occur in other macros. + AC_REQUIRE([gl_SCHED_H_DEFAULTS]) + + AC_REQUIRE([AC_CANONICAL_HOST]) + + AC_CHECK_HEADERS_ONCE([sys/cdefs.h]) + AC_CHECK_HEADERS([sched.h], [], [], + [[#if HAVE_SYS_CDEFS_H + #include + #endif + ]]) + gl_NEXT_HEADERS([sched.h]) + + if test "$ac_cv_header_sched_h" = yes; then + HAVE_SCHED_H=1 + else + HAVE_SCHED_H=0 + fi + AC_SUBST([HAVE_SCHED_H]) + + if test "$HAVE_SCHED_H" = 1; then + AC_CHECK_TYPE([struct sched_param], + [HAVE_STRUCT_SCHED_PARAM=1], [HAVE_STRUCT_SCHED_PARAM=0], + [[#if HAVE_SYS_CDEFS_H + #include + #endif + #include + ]]) + else + HAVE_STRUCT_SCHED_PARAM=0 + case "$host_os" in + os2*) + dnl On OS/2 kLIBC, struct sched_param is in spawn.h. + AC_CHECK_TYPE([struct sched_param], + [HAVE_STRUCT_SCHED_PARAM=1], [], + [#include ]) + ;; + vms) + dnl On OpenVMS 7.2 or newer, struct sched_param is in pthread.h. + AC_CHECK_TYPE([struct sched_param], + [HAVE_STRUCT_SCHED_PARAM=1], [], + [#include ]) + ;; + esac + fi + AC_SUBST([HAVE_STRUCT_SCHED_PARAM]) + + if test "$ac_cv_header_sys_cdefs_h" = yes; then + HAVE_SYS_CDEFS_H=1 + else + HAVE_SYS_CDEFS_H=0 + fi + AC_SUBST([HAVE_SYS_CDEFS_H]) + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use, if it is not common + dnl enough to be declared everywhere. + gl_WARN_ON_USE_PREPARE([[#include + ]], [sched_yield]) +]) + +AC_DEFUN([gl_SCHED_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_SCHED_H_DEFAULTS]) + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +AC_DEFUN([gl_SCHED_H_DEFAULTS], +[ + GNULIB_SCHED_YIELD=0; AC_SUBST([GNULIB_SCHED_YIELD]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_SCHED_YIELD=1; AC_SUBST([HAVE_SCHED_YIELD]) + REPLACE_SCHED_YIELD=0; AC_SUBST([REPLACE_SCHED_YIELD]) +]) diff --git a/m4/sh-filename.m4 b/m4/sh-filename.m4 new file mode 100644 index 00000000000..f7b31548e0d --- /dev/null +++ b/m4/sh-filename.m4 @@ -0,0 +1,22 @@ +# sh-filename.m4 serial 2 +dnl Copyright (C) 2018-2020 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([gl_SH_FILENAME], +[ + AH_VERBATIM([SH_FILENAME], +[/* File name of the Bourne shell. */ +#if defined __CYGWIN__ || defined __ANDROID__ +/* Omit the directory part because + - For 32-bit Cygwin programs in a 64-bit Cygwin environment, the Cygwin + mounts are not visible. + - On Android, /bin/sh does not exist. It's /system/bin/sh instead. */ +# define BOURNE_SHELL "sh" +#else +# define BOURNE_SHELL "/bin/sh" +#endif]) +]) diff --git a/m4/spawn_h.m4 b/m4/spawn_h.m4 new file mode 100644 index 00000000000..781f9f49652 --- /dev/null +++ b/m4/spawn_h.m4 @@ -0,0 +1,136 @@ +# spawn_h.m4 serial 18 +dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Bruno Haible. + +AC_DEFUN([gl_SPAWN_H], +[ + dnl Use AC_REQUIRE here, so that the default behavior below is expanded + dnl once only, before all statements that occur in other macros. + AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) + + dnl is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([spawn.h]) + + if test $ac_cv_header_spawn_h = yes; then + HAVE_SPAWN_H=1 + AC_CHECK_TYPES([posix_spawnattr_t], [], [HAVE_POSIX_SPAWNATTR_T=0], [[ +#include + ]]) + AC_CHECK_TYPES([posix_spawn_file_actions_t], [], + [HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0], [[ +#include + ]]) + else + HAVE_SPAWN_H=0 + HAVE_POSIX_SPAWNATTR_T=0 + HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0 + fi + AC_SUBST([HAVE_SPAWN_H]) + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + + dnl Ensure the type mode_t gets defined. + AC_REQUIRE([AC_TYPE_MODE_T]) + + AC_REQUIRE([gl_HAVE_POSIX_SPAWN]) + + AC_REQUIRE([AC_C_RESTRICT]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include + ]], [posix_spawn posix_spawnp posix_spawnattr_init posix_spawnattr_destroy + posix_spawnattr_getsigdefault posix_spawnattr_setsigdefault + posix_spawnattr_getsigmask posix_spawnattr_setsigmask + posix_spawnattr_getflags posix_spawnattr_setflags + posix_spawnattr_getpgroup posix_spawnattr_setpgroup + posix_spawnattr_getschedpolicy posix_spawnattr_setschedpolicy + posix_spawnattr_getschedparam posix_spawnattr_setschedparam + posix_spawn_file_actions_init posix_spawn_file_actions_destroy + posix_spawn_file_actions_addopen posix_spawn_file_actions_addclose + posix_spawn_file_actions_adddup2 posix_spawn_file_actions_addchdir + posix_spawn_file_actions_addfchdir]) +]) + +dnl Checks whether the system has the functions posix_spawn. +dnl Sets ac_cv_func_posix_spawn and HAVE_POSIX_SPAWN. +AC_DEFUN([gl_HAVE_POSIX_SPAWN], +[ + dnl Use AC_REQUIRE here, so that the default behavior below is expanded + dnl once only, before all statements that occur in other macros. + AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) + + LIB_POSIX_SPAWN= + AC_SUBST([LIB_POSIX_SPAWN]) + gl_saved_libs=$LIBS + AC_SEARCH_LIBS([posix_spawn], [rt], + [test "$ac_cv_search_posix_spawn" = "none required" || + LIB_POSIX_SPAWN=$ac_cv_search_posix_spawn]) + AC_CHECK_FUNCS([posix_spawn]) + LIBS=$gl_saved_libs + + if test $ac_cv_func_posix_spawn != yes; then + HAVE_POSIX_SPAWN=0 + fi +]) + +AC_DEFUN([gl_SPAWN_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +AC_DEFUN([gl_SPAWN_H_DEFAULTS], +[ + GNULIB_POSIX_SPAWN=0; AC_SUBST([GNULIB_POSIX_SPAWN]) + GNULIB_POSIX_SPAWNP=0; AC_SUBST([GNULIB_POSIX_SPAWNP]) + GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT]) + GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR]) + GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE]) + GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2]) + GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR]) + GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN]) + GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY]) + GNULIB_POSIX_SPAWNATTR_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_INIT]) + GNULIB_POSIX_SPAWNATTR_GETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETFLAGS]) + GNULIB_POSIX_SPAWNATTR_SETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETFLAGS]) + GNULIB_POSIX_SPAWNATTR_GETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETPGROUP]) + GNULIB_POSIX_SPAWNATTR_SETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETPGROUP]) + GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM]) + GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM]) + GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY]) + GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY]) + GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT]) + GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT]) + GNULIB_POSIX_SPAWNATTR_GETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGMASK]) + GNULIB_POSIX_SPAWNATTR_SETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGMASK]) + GNULIB_POSIX_SPAWNATTR_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_DESTROY]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_POSIX_SPAWN=1; AC_SUBST([HAVE_POSIX_SPAWN]) + HAVE_POSIX_SPAWNATTR_T=1; AC_SUBST([HAVE_POSIX_SPAWNATTR_T]) + HAVE_POSIX_SPAWN_FILE_ACTIONS_T=1; + AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_T]) + HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=1; + AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR]) + HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR=1; + AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR]) + REPLACE_POSIX_SPAWN=0; AC_SUBST([REPLACE_POSIX_SPAWN]) + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=0; + AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR]) + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; + AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE]) + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0; + AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2]) + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR=0; + AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR]) + REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0; + AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN]) +]) diff --git a/m4/strchrnul.m4 b/m4/strchrnul.m4 new file mode 100644 index 00000000000..a18f0935a51 --- /dev/null +++ b/m4/strchrnul.m4 @@ -0,0 +1,50 @@ +# strchrnul.m4 serial 9 +dnl Copyright (C) 2003, 2007, 2009-2020 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRCHRNUL], +[ + dnl Persuade glibc to declare strchrnul(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) + AC_CHECK_FUNCS([strchrnul]) + if test $ac_cv_func_strchrnul = no; then + HAVE_STRCHRNUL=0 + else + AC_CACHE_CHECK([whether strchrnul works], + [gl_cv_func_strchrnul_works], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include /* for strchrnul */ +]], [[const char *buf = "a"; + return strchrnul (buf, 'b') != buf + 1; + ]])], + [gl_cv_func_strchrnul_works=yes], + [gl_cv_func_strchrnul_works=no], + [dnl Cygwin 1.7.9 introduced strchrnul, but it was broken until 1.7.10 + AC_EGREP_CPP([Lucky user], + [ +#if defined __CYGWIN__ + #include + #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 9) + Lucky user + #endif +#else + Lucky user +#endif + ], + [gl_cv_func_strchrnul_works="guessing yes"], + [gl_cv_func_strchrnul_works="guessing no"]) + ]) + ]) + case "$gl_cv_func_strchrnul_works" in + *yes) ;; + *) REPLACE_STRCHRNUL=1 ;; + esac + fi +]) + +# Prerequisites of lib/strchrnul.c. +AC_DEFUN([gl_PREREQ_STRCHRNUL], [:])