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nss: Fix warnings generated by getcwd

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getcwd() conforms to POSIX.1-2001 which leaves the behaviour when the
buf argument is NULL, undefined. This makes gcc 10+ throw the following
warning:

argument 1 is null but the corresponding size argument 2 value is 4096

Initially, this was fixed by disabling NSS_ENABLE_WERROR. This patch
re-enables NSS_ENABLE_WERROR (by leaving it to its default value) and
takes advantage of the existing functionality in nss that wraps the
getcwd call into a function making sure that the buf argument is always
properly allocated.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit dad2aef6be)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
This commit is contained in:
Andrei Gherzan
2021-02-23 22:16:37 +00:00
committed by Armin Kuster
parent 945f062ff0
commit be89766e7b
1 changed files with 4 additions and 1 deletions
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5
meta-oe/recipes-support/nss/nss_3.57.bb
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@@ -68,7 +68,6 @@ do_compile_prepend_class-native() {
do_compile() {
export NSPR_INCLUDE_DIR=${STAGING_INCDIR}/nspr
export NSS_ENABLE_WERROR=0
export CROSS_COMPILE=1
export NATIVE_CC="${BUILD_CC}"
@@ -76,6 +75,10 @@ do_compile() {
export NATIVE_FLAGS="${BUILD_CFLAGS} -DLINUX -Dlinux"
export BUILD_OPT=1
# POSIX.1-2001 states that the behaviour of getcwd() when passing a null
# pointer as the buf argument, is unspecified.
export NATIVE_FLAGS="${NATIVE_FLAGS} -DGETCWD_CANT_MALLOC"
export FREEBL_NO_DEPEND=1
export FREEBL_LOWHASH=1