| Message ID | 20240312162120.1360522-4-adhemerval.zanella@linaro.org |
|---|---|
| State | Accepted |
| Commit | 3d53d18fc71c5d9ef4773b8bce04d54b80181926 |
| Headers | show |
| Series | Extending TLS testing and fixing TLS gnu2 for ARM | expand |
On Tue, Mar 12, 2024 at 9:21 AM Adhemerval Zanella <adhemerval.zanella@linaro.org> wrote: > > The aarch64 uses 'trad' for traditional tls and 'desc' for tls > descriptors, but unlike other targets it defaults to 'desc'. The > gnutls2 configure check does not set aarch64 as an ABI that uses > TLS descriptors, which then disable somes stests. > > Also rename the internal machinery fron gnu2 to tls descriptors. > > Checked on aarch64-linux-gnu. > --- > configure | 23 +++++++++++++---------- > configure.ac | 15 +++++++++------ > elf/Makefile | 26 +++++++++++++------------- > sysdeps/aarch64/preconfigure | 1 + > sysdeps/arm/Makefile | 8 ++++---- > 5 files changed, 40 insertions(+), 33 deletions(-) > > diff --git a/configure b/configure > index 117b48a421..432e40a592 100755 > --- a/configure > +++ b/configure > @@ -653,7 +653,7 @@ LIBGD > libc_cv_cc_loop_to_function > libc_cv_cc_submachine > libc_cv_cc_nofma > -libc_cv_mtls_dialect_gnu2 > +libc_cv_mtls_descriptor > libc_cv_has_glob_dat > libc_cv_fpie > libc_cv_z_execstack > @@ -4760,6 +4760,9 @@ libc_config_ok=no > # whether to use such directories. > with_fp_cond=1 > > +# A preconfigure script may define another name to TLS descriptor variant > +mtls_descriptor=gnu2 > + > if frags=`ls -d $srcdir/sysdeps/*/preconfigure 2> /dev/null` > then > { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sysdeps preconfigure fragments" >&5 > @@ -7006,9 +7009,9 @@ fi > printf "%s\n" "$libc_cv_has_glob_dat" >&6; } > > > -{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -mtls-dialect=gnu2" >&5 > -printf %s "checking for -mtls-dialect=gnu2... " >&6; } > -if test ${libc_cv_mtls_dialect_gnu2+y} > +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for tls descriptor support" >&5 > +printf %s "checking for tls descriptor support... " >&6; } > +if test ${libc_cv_mtls_descriptor+y} > then : > printf %s "(cached) " >&6 > else $as_nop > @@ -7019,7 +7022,7 @@ void foo (void) > i = 10; > } > EOF > -if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nostartfiles > +if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles > -shared conftest.c -o conftest 1>&5' > { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 > (eval $ac_try) 2>&5 > @@ -7027,17 +7030,17 @@ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nost > printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 > test $ac_status = 0; }; } > then > - libc_cv_mtls_dialect_gnu2=yes > + libc_cv_mtls_descriptor=$mtls_descriptor > else > - libc_cv_mtls_dialect_gnu2=no > + libc_cv_mtls_descriptor=no > fi > rm -f conftest* > fi > -{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mtls_dialect_gnu2" >&5 > -printf "%s\n" "$libc_cv_mtls_dialect_gnu2" >&6; } > +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mtls_descriptor" >&5 > +printf "%s\n" "$libc_cv_mtls_descriptor" >&6; } > > config_vars="$config_vars > -have-mtls-dialect-gnu2 = $libc_cv_mtls_dialect_gnu2" > +have-mtls-descriptor = $libc_cv_mtls_descriptor" > > { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if -Wno-ignored-attributes is required for aliases" >&5 > printf %s "checking if -Wno-ignored-attributes is required for aliases... " >&6; } > diff --git a/configure.ac b/configure.ac > index 19b88a47a5..bdc385d03c 100644 > --- a/configure.ac > +++ b/configure.ac > @@ -442,6 +442,9 @@ libc_config_ok=no > # whether to use such directories. > with_fp_cond=1 > > +# A preconfigure script may define another name to TLS descriptor variant > +mtls_descriptor=gnu2 > + > dnl Let sysdeps/*/preconfigure act here. > LIBC_PRECONFIGURE([$srcdir], [for sysdeps]) > > @@ -1287,7 +1290,7 @@ fi > rm -f conftest*]) > AC_SUBST(libc_cv_has_glob_dat) > > -AC_CACHE_CHECK([for -mtls-dialect=gnu2], libc_cv_mtls_dialect_gnu2, > +AC_CACHE_CHECK([for tls descriptor support], libc_cv_mtls_descriptor, > [dnl > cat > conftest.c <<EOF > __thread int i; > @@ -1296,16 +1299,16 @@ void foo (void) > i = 10; > } > EOF > -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nostartfiles > +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles > -shared conftest.c -o conftest 1>&AS_MESSAGE_LOG_FD]) > then > - libc_cv_mtls_dialect_gnu2=yes > + libc_cv_mtls_descriptor=$mtls_descriptor > else > - libc_cv_mtls_dialect_gnu2=no > + libc_cv_mtls_descriptor=no > fi > rm -f conftest*]) > -AC_SUBST(libc_cv_mtls_dialect_gnu2) > -LIBC_CONFIG_VAR([have-mtls-dialect-gnu2], [$libc_cv_mtls_dialect_gnu2]) > +AC_SUBST(libc_cv_mtls_descriptor) > +LIBC_CONFIG_VAR([have-mtls-descriptor], [$libc_cv_mtls_descriptor]) > > dnl clang emits an warning for a double alias redirection, to warn the > dnl original symbol is sed even when weak definition overrides it. > diff --git a/elf/Makefile b/elf/Makefile > index 393a27ef2a..4f1903391a 100644 > --- a/elf/Makefile > +++ b/elf/Makefile > @@ -1001,13 +1001,13 @@ modules-names-tests = $(filter-out ifuncmod% tst-tlsmod%,\ > # For +depfiles in Makerules. > extra-test-objs += tst-auditmod17.os > > -ifeq (yes,$(have-mtls-dialect-gnu2)) > +ifneq (no,$(have-mtls-descriptor)) > tests += tst-gnu2-tls1 > modules-names += tst-gnu2-tls1mod > $(objpfx)tst-gnu2-tls1: $(objpfx)tst-gnu2-tls1mod.so > tst-gnu2-tls1mod.so-no-z-defs = yes > -CFLAGS-tst-gnu2-tls1mod.c += -mtls-dialect=gnu2 > -endif # $(have-mtls-dialect-gnu2) > +CFLAGS-tst-gnu2-tls1mod.c += -mtls-dialect=$(have-mtls-descriptor) > +endif # $(have-mtls-descriptor) > > ifeq (yes,$(have-protected-data)) > modules-names += tst-protected1moda tst-protected1modb > @@ -2975,11 +2975,11 @@ $(objpfx)tst-tls-allocation-failure-static-patched.out: \ > $(objpfx)tst-audit-tlsdesc: $(objpfx)tst-audit-tlsdesc-mod1.so \ > $(objpfx)tst-audit-tlsdesc-mod2.so \ > $(shared-thread-library) > -ifeq (yes,$(have-mtls-dialect-gnu2)) > +ifneq (no,$(have-mtls-descriptor)) > # The test is valid for all TLS types, but we want to exercise GNU2 > # TLS if possible. > -CFLAGS-tst-audit-tlsdesc-mod1.c += -mtls-dialect=gnu2 > -CFLAGS-tst-audit-tlsdesc-mod2.c += -mtls-dialect=gnu2 > +CFLAGS-tst-audit-tlsdesc-mod1.c += -mtls-dialect=$(have-mtls-descriptor) > +CFLAGS-tst-audit-tlsdesc-mod2.c += -mtls-dialect=$(have-mtls-descriptor) > endif > $(objpfx)tst-audit-tlsdesc-dlopen: $(shared-thread-library) > $(objpfx)tst-audit-tlsdesc-dlopen.out: $(objpfx)tst-audit-tlsdesc-mod1.so \ > @@ -3058,11 +3058,11 @@ $(objpfx)tst-gnu2-tls2.out: \ > $(objpfx)tst-gnu2-tls2mod1.so \ > $(objpfx)tst-gnu2-tls2mod2.so > > -ifeq (yes,$(have-mtls-dialect-gnu2)) > -CFLAGS-tst-tlsgap-mod0.c += -mtls-dialect=gnu2 > -CFLAGS-tst-tlsgap-mod1.c += -mtls-dialect=gnu2 > -CFLAGS-tst-tlsgap-mod2.c += -mtls-dialect=gnu2 > -CFLAGS-tst-gnu2-tls2mod0.c += -mtls-dialect=gnu2 > -CFLAGS-tst-gnu2-tls2mod1.c += -mtls-dialect=gnu2 > -CFLAGS-tst-gnu2-tls2mod2.c += -mtls-dialect=gnu2 > +ifneq (no,$(have-mtls-descriptor)) > +CFLAGS-tst-tlsgap-mod0.c += -mtls-dialect=$(have-mtls-descriptor) > +CFLAGS-tst-tlsgap-mod1.c += -mtls-dialect=$(have-mtls-descriptor) > +CFLAGS-tst-tlsgap-mod2.c += -mtls-dialect=$(have-mtls-descriptor) > +CFLAGS-tst-gnu2-tls2mod0.c += -mtls-dialect=$(have-mtls-descriptor) > +CFLAGS-tst-gnu2-tls2mod1.c += -mtls-dialect=$(have-mtls-descriptor) > +CFLAGS-tst-gnu2-tls2mod2.c += -mtls-dialect=$(have-mtls-descriptor) > endif > diff --git a/sysdeps/aarch64/preconfigure b/sysdeps/aarch64/preconfigure > index d9bd1f8558..19657b627b 100644 > --- a/sysdeps/aarch64/preconfigure > +++ b/sysdeps/aarch64/preconfigure > @@ -2,5 +2,6 @@ case "$machine" in > aarch64*) > base_machine=aarch64 > machine=aarch64 > + mtls_descriptor=desc > ;; > esac > diff --git a/sysdeps/arm/Makefile b/sysdeps/arm/Makefile > index d5cea717a9..619474eca9 100644 > --- a/sysdeps/arm/Makefile > +++ b/sysdeps/arm/Makefile > @@ -13,15 +13,15 @@ $(objpfx)libgcc-stubs.a: $(objpfx)aeabi_unwind_cpp_pr1.os > lib-noranlib: $(objpfx)libgcc-stubs.a > > ifeq ($(build-shared),yes) > -ifeq (yes,$(have-mtls-dialect-gnu2)) > +ifneq (no,$(have-mtls-descriptor)) > tests += tst-armtlsdescloc tst-armtlsdescextnow tst-armtlsdescextlazy > modules-names += tst-armtlsdesclocmod > modules-names += tst-armtlsdescextlazymod tst-armtlsdescextnowmod > CPPFLAGS-tst-armtlsdescextnowmod.c += -Dstatic= > CPPFLAGS-tst-armtlsdescextlazymod.c += -Dstatic= > -CFLAGS-tst-armtlsdesclocmod.c += -mtls-dialect=gnu2 > -CFLAGS-tst-armtlsdescextnowmod.c += -mtls-dialect=gnu2 > -CFLAGS-tst-armtlsdescextlazymod.c += -mtls-dialect=gnu2 > +CFLAGS-tst-armtlsdesclocmod.c += -mtls-dialect=$(have-mtls-descriptor) > +CFLAGS-tst-armtlsdescextnowmod.c += -mtls-dialect=$(have-mtls-descriptor) > +CFLAGS-tst-armtlsdescextlazymod.c += -mtls-dialect=$(have-mtls-descriptor) > LDFLAGS-tst-armtlsdescextnowmod.so += -Wl,-z,now > tst-armtlsdescloc-ENV = LD_BIND_NOW=1 > tst-armtlsdescextnow-ENV = LD_BIND_NOW=1 > -- > 2.34.1 > LGTM. Reviewed-by: H.J. Lu <hjl.tools@gmail.com> Thanks.
diff --git a/configure b/configure index 117b48a421..432e40a592 100755 --- a/configure +++ b/configure @@ -653,7 +653,7 @@ LIBGD libc_cv_cc_loop_to_function libc_cv_cc_submachine libc_cv_cc_nofma -libc_cv_mtls_dialect_gnu2 +libc_cv_mtls_descriptor libc_cv_has_glob_dat libc_cv_fpie libc_cv_z_execstack @@ -4760,6 +4760,9 @@ libc_config_ok=no # whether to use such directories. with_fp_cond=1 +# A preconfigure script may define another name to TLS descriptor variant +mtls_descriptor=gnu2 + if frags=`ls -d $srcdir/sysdeps/*/preconfigure 2> /dev/null` then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sysdeps preconfigure fragments" >&5 @@ -7006,9 +7009,9 @@ fi printf "%s\n" "$libc_cv_has_glob_dat" >&6; } -{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -mtls-dialect=gnu2" >&5 -printf %s "checking for -mtls-dialect=gnu2... " >&6; } -if test ${libc_cv_mtls_dialect_gnu2+y} +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for tls descriptor support" >&5 +printf %s "checking for tls descriptor support... " >&6; } +if test ${libc_cv_mtls_descriptor+y} then : printf %s "(cached) " >&6 else $as_nop @@ -7019,7 +7022,7 @@ void foo (void) i = 10; } EOF -if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nostartfiles +if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles -shared conftest.c -o conftest 1>&5' { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 (eval $ac_try) 2>&5 @@ -7027,17 +7030,17 @@ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nost printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; } then - libc_cv_mtls_dialect_gnu2=yes + libc_cv_mtls_descriptor=$mtls_descriptor else - libc_cv_mtls_dialect_gnu2=no + libc_cv_mtls_descriptor=no fi rm -f conftest* fi -{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mtls_dialect_gnu2" >&5 -printf "%s\n" "$libc_cv_mtls_dialect_gnu2" >&6; } +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mtls_descriptor" >&5 +printf "%s\n" "$libc_cv_mtls_descriptor" >&6; } config_vars="$config_vars -have-mtls-dialect-gnu2 = $libc_cv_mtls_dialect_gnu2" +have-mtls-descriptor = $libc_cv_mtls_descriptor" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if -Wno-ignored-attributes is required for aliases" >&5 printf %s "checking if -Wno-ignored-attributes is required for aliases... " >&6; } diff --git a/configure.ac b/configure.ac index 19b88a47a5..bdc385d03c 100644 --- a/configure.ac +++ b/configure.ac @@ -442,6 +442,9 @@ libc_config_ok=no # whether to use such directories. with_fp_cond=1 +# A preconfigure script may define another name to TLS descriptor variant +mtls_descriptor=gnu2 + dnl Let sysdeps/*/preconfigure act here. LIBC_PRECONFIGURE([$srcdir], [for sysdeps]) @@ -1287,7 +1290,7 @@ fi rm -f conftest*]) AC_SUBST(libc_cv_has_glob_dat) -AC_CACHE_CHECK([for -mtls-dialect=gnu2], libc_cv_mtls_dialect_gnu2, +AC_CACHE_CHECK([for tls descriptor support], libc_cv_mtls_descriptor, [dnl cat > conftest.c <<EOF __thread int i; @@ -1296,16 +1299,16 @@ void foo (void) i = 10; } EOF -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nostartfiles +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles -shared conftest.c -o conftest 1>&AS_MESSAGE_LOG_FD]) then - libc_cv_mtls_dialect_gnu2=yes + libc_cv_mtls_descriptor=$mtls_descriptor else - libc_cv_mtls_dialect_gnu2=no + libc_cv_mtls_descriptor=no fi rm -f conftest*]) -AC_SUBST(libc_cv_mtls_dialect_gnu2) -LIBC_CONFIG_VAR([have-mtls-dialect-gnu2], [$libc_cv_mtls_dialect_gnu2]) +AC_SUBST(libc_cv_mtls_descriptor) +LIBC_CONFIG_VAR([have-mtls-descriptor], [$libc_cv_mtls_descriptor]) dnl clang emits an warning for a double alias redirection, to warn the dnl original symbol is sed even when weak definition overrides it. diff --git a/elf/Makefile b/elf/Makefile index 393a27ef2a..4f1903391a 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -1001,13 +1001,13 @@ modules-names-tests = $(filter-out ifuncmod% tst-tlsmod%,\ # For +depfiles in Makerules. extra-test-objs += tst-auditmod17.os -ifeq (yes,$(have-mtls-dialect-gnu2)) +ifneq (no,$(have-mtls-descriptor)) tests += tst-gnu2-tls1 modules-names += tst-gnu2-tls1mod $(objpfx)tst-gnu2-tls1: $(objpfx)tst-gnu2-tls1mod.so tst-gnu2-tls1mod.so-no-z-defs = yes -CFLAGS-tst-gnu2-tls1mod.c += -mtls-dialect=gnu2 -endif # $(have-mtls-dialect-gnu2) +CFLAGS-tst-gnu2-tls1mod.c += -mtls-dialect=$(have-mtls-descriptor) +endif # $(have-mtls-descriptor) ifeq (yes,$(have-protected-data)) modules-names += tst-protected1moda tst-protected1modb @@ -2975,11 +2975,11 @@ $(objpfx)tst-tls-allocation-failure-static-patched.out: \ $(objpfx)tst-audit-tlsdesc: $(objpfx)tst-audit-tlsdesc-mod1.so \ $(objpfx)tst-audit-tlsdesc-mod2.so \ $(shared-thread-library) -ifeq (yes,$(have-mtls-dialect-gnu2)) +ifneq (no,$(have-mtls-descriptor)) # The test is valid for all TLS types, but we want to exercise GNU2 # TLS if possible. -CFLAGS-tst-audit-tlsdesc-mod1.c += -mtls-dialect=gnu2 -CFLAGS-tst-audit-tlsdesc-mod2.c += -mtls-dialect=gnu2 +CFLAGS-tst-audit-tlsdesc-mod1.c += -mtls-dialect=$(have-mtls-descriptor) +CFLAGS-tst-audit-tlsdesc-mod2.c += -mtls-dialect=$(have-mtls-descriptor) endif $(objpfx)tst-audit-tlsdesc-dlopen: $(shared-thread-library) $(objpfx)tst-audit-tlsdesc-dlopen.out: $(objpfx)tst-audit-tlsdesc-mod1.so \ @@ -3058,11 +3058,11 @@ $(objpfx)tst-gnu2-tls2.out: \ $(objpfx)tst-gnu2-tls2mod1.so \ $(objpfx)tst-gnu2-tls2mod2.so -ifeq (yes,$(have-mtls-dialect-gnu2)) -CFLAGS-tst-tlsgap-mod0.c += -mtls-dialect=gnu2 -CFLAGS-tst-tlsgap-mod1.c += -mtls-dialect=gnu2 -CFLAGS-tst-tlsgap-mod2.c += -mtls-dialect=gnu2 -CFLAGS-tst-gnu2-tls2mod0.c += -mtls-dialect=gnu2 -CFLAGS-tst-gnu2-tls2mod1.c += -mtls-dialect=gnu2 -CFLAGS-tst-gnu2-tls2mod2.c += -mtls-dialect=gnu2 +ifneq (no,$(have-mtls-descriptor)) +CFLAGS-tst-tlsgap-mod0.c += -mtls-dialect=$(have-mtls-descriptor) +CFLAGS-tst-tlsgap-mod1.c += -mtls-dialect=$(have-mtls-descriptor) +CFLAGS-tst-tlsgap-mod2.c += -mtls-dialect=$(have-mtls-descriptor) +CFLAGS-tst-gnu2-tls2mod0.c += -mtls-dialect=$(have-mtls-descriptor) +CFLAGS-tst-gnu2-tls2mod1.c += -mtls-dialect=$(have-mtls-descriptor) +CFLAGS-tst-gnu2-tls2mod2.c += -mtls-dialect=$(have-mtls-descriptor) endif diff --git a/sysdeps/aarch64/preconfigure b/sysdeps/aarch64/preconfigure index d9bd1f8558..19657b627b 100644 --- a/sysdeps/aarch64/preconfigure +++ b/sysdeps/aarch64/preconfigure @@ -2,5 +2,6 @@ case "$machine" in aarch64*) base_machine=aarch64 machine=aarch64 + mtls_descriptor=desc ;; esac diff --git a/sysdeps/arm/Makefile b/sysdeps/arm/Makefile index d5cea717a9..619474eca9 100644 --- a/sysdeps/arm/Makefile +++ b/sysdeps/arm/Makefile @@ -13,15 +13,15 @@ $(objpfx)libgcc-stubs.a: $(objpfx)aeabi_unwind_cpp_pr1.os lib-noranlib: $(objpfx)libgcc-stubs.a ifeq ($(build-shared),yes) -ifeq (yes,$(have-mtls-dialect-gnu2)) +ifneq (no,$(have-mtls-descriptor)) tests += tst-armtlsdescloc tst-armtlsdescextnow tst-armtlsdescextlazy modules-names += tst-armtlsdesclocmod modules-names += tst-armtlsdescextlazymod tst-armtlsdescextnowmod CPPFLAGS-tst-armtlsdescextnowmod.c += -Dstatic= CPPFLAGS-tst-armtlsdescextlazymod.c += -Dstatic= -CFLAGS-tst-armtlsdesclocmod.c += -mtls-dialect=gnu2 -CFLAGS-tst-armtlsdescextnowmod.c += -mtls-dialect=gnu2 -CFLAGS-tst-armtlsdescextlazymod.c += -mtls-dialect=gnu2 +CFLAGS-tst-armtlsdesclocmod.c += -mtls-dialect=$(have-mtls-descriptor) +CFLAGS-tst-armtlsdescextnowmod.c += -mtls-dialect=$(have-mtls-descriptor) +CFLAGS-tst-armtlsdescextlazymod.c += -mtls-dialect=$(have-mtls-descriptor) LDFLAGS-tst-armtlsdescextnowmod.so += -Wl,-z,now tst-armtlsdescloc-ENV = LD_BIND_NOW=1 tst-armtlsdescextnow-ENV = LD_BIND_NOW=1