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package/libnss: use correct CFLAGS and LDFLAGS

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Currently libnss is configured with BUILD_OPT=1 and due to that that
it doesn't take into account Buildroot TARGET_CFLAGS nor
TARGET_LDFLAGS resulting in pre-chosen optimizations and debugging
symbols being used.

We can't pass TARGET_CFLAGS through CFLAGS or similar otherwise other
internal libnss one will be overwritten (i.e. -fPIC), so we prefer to
append TARGET_CFLAGS at the end of Linux.mk as well as TARGET_LDFLAGS
according to internal libnss Makefile system's names. And obviously
remove BUILD_OPT=1 from BUILD_VARS.

This reveals hidden bugs when building with -Os due to bogus
uninitialized warnings from gcc turned into errors because of -Werror,
so we explicitly pass NSS_ENABLE_WERROR=0 to avoid the use of -Werror.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
[Thomas: drop the libnss patches, and pass NSS_ENABLE_WERROR instead]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Giulio Benetti 2019-07-29 16:26:10 +02:00 committed by Thomas Petazzoni
parent ccacb5516f
commit 5e787b0014
1 changed files with 12 additions and 4 deletions
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16
package/libnss/libnss.mk
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@ -13,6 +13,14 @@ LIBNSS_DEPENDENCIES = libnspr sqlite zlib
LIBNSS_LICENSE = MPL-2.0 LIBNSS_LICENSE = MPL-2.0
LIBNSS_LICENSE_FILES = nss/COPYING LIBNSS_LICENSE_FILES = nss/COPYING
# Need to pass down TARGET_CFLAGS and TARGET_LDFLAGS
define LIBNSS_FIXUP_LINUX_MK
echo 'OS_CFLAGS += $(TARGET_CFLAGS)' >> $(@D)/nss/coreconf/Linux.mk
echo 'LDFLAGS += $(TARGET_LDFLAGS)' >> $(@D)/nss/coreconf/Linux.mk
endef
LIBNSS_PRE_CONFIGURE_HOOKS += LIBNSS_FIXUP_LINUX_MK
# --gc-sections triggers binutils ld segfault # --gc-sections triggers binutils ld segfault
# https://sourceware.org/bugzilla/show_bug.cgi?id=21180 # https://sourceware.org/bugzilla/show_bug.cgi?id=21180
ifeq ($(BR2_microblaze),y) ifeq ($(BR2_microblaze),y)
@ -33,7 +41,6 @@ LIBNSS_BUILD_VARS = \
MOZILLA_CLIENT=1 \ MOZILLA_CLIENT=1 \
NSPR_INCLUDE_DIR=$(STAGING_DIR)/usr/include/nspr \ NSPR_INCLUDE_DIR=$(STAGING_DIR)/usr/include/nspr \
NSPR_LIB_DIR=$(STAGING_DIR)/usr/lib \ NSPR_LIB_DIR=$(STAGING_DIR)/usr/lib \
BUILD_OPT=1 \
NS_USE_GCC=1 \ NS_USE_GCC=1 \
NSS_DISABLE_GTESTS=1 \ NSS_DISABLE_GTESTS=1 \
NSS_USE_SYSTEM_SQLITE=1 \ NSS_USE_SYSTEM_SQLITE=1 \
@ -41,7 +48,8 @@ LIBNSS_BUILD_VARS = \
NATIVE_CC="$(HOSTCC)" \ NATIVE_CC="$(HOSTCC)" \
OS_ARCH="Linux" \ OS_ARCH="Linux" \
OS_RELEASE="2.6" \ OS_RELEASE="2.6" \
OS_TEST="$(LIBNSS_ARCH)" OS_TEST="$(LIBNSS_ARCH)" \
NSS_ENABLE_WERROR=0
# #pragma usage needs gcc >= 4.8 # #pragma usage needs gcc >= 4.8
# See https://bugzilla.mozilla.org/show_bug.cgi?id=1226179 # See https://bugzilla.mozilla.org/show_bug.cgi?id=1226179
@ -102,13 +110,13 @@ HOST_LIBNSS_BUILD_VARS = \
MOZILLA_CLIENT=1 \ MOZILLA_CLIENT=1 \
NSPR_INCLUDE_DIR=$(HOST_DIR)/include/nspr \ NSPR_INCLUDE_DIR=$(HOST_DIR)/include/nspr \
NSPR_LIB_DIR=$(HOST_DIR)/lib \ NSPR_LIB_DIR=$(HOST_DIR)/lib \
BUILD_OPT=1 \
NS_USE_GCC=1 \ NS_USE_GCC=1 \
NSS_DISABLE_GTESTS=1 \ NSS_DISABLE_GTESTS=1 \
NSS_USE_SYSTEM_SQLITE=1 \ NSS_USE_SYSTEM_SQLITE=1 \
SQLITE_INCLUDE_DIR=$(HOST_DIR)/include \ SQLITE_INCLUDE_DIR=$(HOST_DIR)/include \
ZLIB_INCLUDE_DIR=$(HOST_DIR)/include \ ZLIB_INCLUDE_DIR=$(HOST_DIR)/include \
NSS_ENABLE_ECC=1 NSS_ENABLE_ECC=1 \
NSS_ENABLE_WERROR=0
HOST_LIBNSS_DEPENDENCIES = host-libnspr host-sqlite host-zlib HOST_LIBNSS_DEPENDENCIES = host-libnspr host-sqlite host-zlib