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toolchain: add hidden symbol for PIE support

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uClibc-ng does not support PIE for some architectures as
arc and m68k. It isn't implemented in the static linking case, too.
With musl toolchains you might have static PIE support with little
patching of gcc. Static linking for GNU libc isn't enabled in
buildroot. Fixup any package using special treatment of PIE.
(grep -ir pie package/*/*.mk)

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
[Thomas: use positive logic.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Waldemar Brodkorb 2016-07-11 16:35:14 +02:00 committed by Thomas Petazzoni
parent 58b573c252
commit 3c93901bcd
13 changed files with 18 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
package/bluez_utils/bluez_utils.mk
View File

@ -54,8 +54,7 @@ BLUEZ_UTILS_CONF_OPTS += \
--disable-usb
endif
# PIE is broken for m68k
ifeq ($(BR2_m68k),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
BLUEZ_UTILS_CONF_OPTS += --disable-pie
endif

2
package/cifs-utils/cifs-utils.mk
View File

@ -10,7 +10,7 @@ CIFS_UTILS_SITE = http://ftp.samba.org/pub/linux-cifs/cifs-utils
CIFS_UTILS_LICENSE = GPLv3+
CIFS_UTILS_LICENSE_FILES = COPYING
ifneq ($(BR2_STATIC_LIBS)$(BR2_m68k),)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
CIFS_UTILS_CONF_OPTS += --disable-pie
endif

4
package/libmemcached/libmemcached.mk
View File

@ -18,9 +18,7 @@ LIBMEMCACHED_AUTORECONF = YES
LIBMEMCACHED_LICENSE = BSD-3c
LIBMEMCACHED_LICENSE_FILES = COPYING
# Help libmemcached to understand that -fPIE and -pie should not be
# used when linking statically.
ifeq ($(BR2_STATIC_LIBS),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
LIBMEMCACHED_CONF_ENV += \
ax_cv_check_cflags__Werror__fPIE=no \
ax_cv_check_cflags__Werror__pie=no \

2
package/libsodium/libsodium.mk
View File

@ -10,7 +10,7 @@ LIBSODIUM_LICENSE = ISC
LIBSODIUM_LICENSE_FILES = LICENSE
LIBSODIUM_INSTALL_STAGING = YES
ifeq ($(BR2_arc),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
LIBSODIUM_CONF_OPTS += --disable-pie
endif

2
package/lvm2/lvm2.mk
View File

@ -43,7 +43,7 @@ else
LVM2_CONF_OPTS += --disable-applib
endif
ifeq ($(BR2_arc)$(BR2_m68k),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
LVM2_CONF_ENV += ac_cv_flag_HAVE_PIE=no
endif

7
package/openssh/openssh.mk
View File

@ -22,12 +22,7 @@ define OPENSSH_USERS
sshd -1 sshd -1 * - - - SSH drop priv user
endef
# uClibc toolchain for ARC doesn't support PIE at the moment
ifeq ($(BR2_arc),y)
OPENSSH_CONF_OPTS += --without-pie
endif
# PIE and static does not work on Linux
ifeq ($(BR2_STATIC_LIBS),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
OPENSSH_CONF_OPTS += --without-pie
endif

4
package/openswan/openswan.mk
View File

@ -11,8 +11,8 @@ OPENSWAN_LICENSE_FILES = COPYING LICENSE
OPENSWAN_DEPENDENCIES = host-bison host-flex gmp iproute2
OPENSWAN_MAKE_OPTS = ARCH=$(BR2_ARCH) CC="$(TARGET_CC)" \
USERCOMPILE="$(TARGET_CFLAGS) $(if $(BR2_STATIC_LIBS),,-fPIE)" \
USERLINK="$(TARGET_LDFLAGS) $(if $(BR2_STATIC_LIBS),,-fPIE)" \
USERCOMPILE="$(TARGET_CFLAGS) $(if $(BR2_TOOLCHAIN_SUPPORTS_PIE),-fPIE)" \
USERLINK="$(TARGET_LDFLAGS) $(if $(BR2_TOOLCHAIN_SUPPORTS_PIE),-fPIE)" \
INC_USRLOCAL=/usr USE_KLIPS=false USE_MAST=false USE_NM=false
ifeq ($(BR2_PACKAGE_LIBCURL),y)

2
package/pure-ftpd/pure-ftpd.mk
View File

@ -41,7 +41,7 @@ else
PURE_FTPD_CONF_OPTS += --without-tls
endif
ifeq ($(BR2_arc),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
PURE_FTPD_CONF_ENV += ax_cv_check_cflags___fPIE=no ax_cv_check_ldflags___fPIE=no
endif

2
package/quagga/quagga.mk
View File

@ -68,7 +68,7 @@ else
QUAGGA_CONF_OPTS += --disable-vtysh
endif
ifeq ($(BR2_arc),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
QUAGGA_CONF_OPTS += --disable-pie
endif

2
package/tinc/tinc.mk
View File

@ -11,7 +11,7 @@ TINC_LICENSE = GPLv2+ with OpenSSL exception
TINC_LICENSE_FILES = COPYING COPYING.README
TINC_CONF_ENV = CFLAGS="$(TARGET_CFLAGS) -std=c99"
ifeq ($(BR2_arc),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
TINC_CONF_ENV += \
ax_cv_check_cflags___fPIE=no \
ax_cv_check_ldflags___pie=no

3
package/trousers/trousers.mk
View File

@ -23,8 +23,7 @@ endif
# workaround.
TROUSERS_CONF_OPTS += --disable-usercheck
# uClibc toolchain for ARC doesn't support PIE at the moment
ifeq ($(BR2_arc),y)
ifeq ($(BR2_TOOLCHAIN_SUPPORTS_PIE),)
TROUSERS_CONF_ENV += \
ax_cv_check_cflags___fPIE__DPIE=no \
ax_cv_check_ldflags___pie=no

3
toolchain/Config.in
View File

@ -15,9 +15,11 @@ config BR2_TOOLCHAIN_USES_GLIBC
select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
select BR2_TOOLCHAIN_HAS_THREADS_NPTL
select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
select BR2_TOOLCHAIN_SUPPORTS_PIE
config BR2_TOOLCHAIN_USES_UCLIBC
bool
select BR2_TOOLCHAIN_SUPPORTS_PIE if !BR2_arc && !BR2_m68k && !BR2_STATIC_LIBS
config BR2_TOOLCHAIN_USES_MUSL
bool
@ -26,6 +28,7 @@ config BR2_TOOLCHAIN_USES_MUSL
select BR2_TOOLCHAIN_HAS_THREADS
select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
select BR2_TOOLCHAIN_HAS_THREADS_NPTL
select BR2_TOOLCHAIN_SUPPORTS_PIE
choice
prompt "Toolchain type"

3
toolchain/toolchain-common.in
View File

@ -39,6 +39,9 @@ config BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
config BR2_TOOLCHAIN_HAS_SSP
bool
config BR2_TOOLCHAIN_SUPPORTS_PIE
bool
config BR2_ENABLE_LOCALE_PURGE
bool "Purge unwanted locales"
help