On Sun, May 3, 2020 at 10:39 AM Khem Raj <[email protected]> wrote:
>
> I think add it globally to BUILD_CFLAGS perhaps is
> Right thing to do once we upgrade to gcc10 cross compiler I have a patch to 
> add it to gcc defaults

Adding -fcommon to CFLAGS or BUILD_CFLAGS globally could interact
badly with components which are already setting -fno-common via their
own internal CFLAGS. It's safer to fix selectively on a per-recipe
basis.

> Perhaps we will have apps ported to gcc10 by then
>
> On Sun, May 3, 2020 at 1:07 AM Daniel Mack <[email protected]> wrote:
>>
>> When building on a gcc 10 enabled host distribution (such as Fedora 32),
>> a number of recipies need explicit treatment to enable '-fcommon' in
>> BUILD_CFLAGS. There might be more of those fixes needed.
>>
>> Commit 46827b8616 ("recipes: Use -fcommon explicitly") already addressed
>> that for some places, but tweaking CFLAGS doesn't seem to suffice.
>>
>> Signed-off-by: Daniel Mack <[email protected]>
>> ---
>>  meta/recipes-bsp/u-boot/u-boot-tools.inc                   | 2 ++
>>  meta/recipes-bsp/u-boot/u-boot.inc                         | 2 ++
>>  meta/recipes-devtools/binutils/binutils.inc                | 2 ++
>>  meta/recipes-devtools/libcomps/libcomps_git.bb             | 1 +
>>  meta/recipes-devtools/pseudo/pseudo.inc                    | 2 ++
>>  meta/recipes-devtools/squashfs-tools/squashfs-tools_git.bb | 1 +
>>  meta/recipes-extended/libtirpc/libtirpc_1.2.5.bb           | 2 +-
>>  meta/recipes-kernel/dtc/dtc.inc                            | 3 ++-
>>  meta/recipes-support/gdbm/gdbm_1.18.1.bb                   | 2 +-
>>  9 files changed, 14 insertions(+), 3 deletions(-)
>>
>> diff --git a/meta/recipes-bsp/u-boot/u-boot-tools.inc 
>> b/meta/recipes-bsp/u-boot/u-boot-tools.inc
>> index 8ae290acc6..98c47bf399 100644
>> --- a/meta/recipes-bsp/u-boot/u-boot-tools.inc
>> +++ b/meta/recipes-bsp/u-boot/u-boot-tools.inc
>> @@ -11,6 +11,8 @@ RPROVIDES_${PN}-mkimage = "u-boot-mkimage"
>>  RREPLACES_${PN}-mkimage = "u-boot-mkimage"
>>  RCONFLICTS_${PN}-mkimage = "u-boot-mkimage"
>>
>> +BUILD_CFLAGS += "-fcommon"
>> +
>>  EXTRA_OEMAKE_class-target = 'CROSS_COMPILE="${TARGET_PREFIX}" CC="${CC} 
>> ${CFLAGS} ${LDFLAGS}" HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" 
>> STRIP=true V=1'
>>  EXTRA_OEMAKE_class-native = 'CC="${BUILD_CC} ${BUILD_CFLAGS} 
>> ${BUILD_LDFLAGS}" HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" 
>> STRIP=true V=1'
>>  EXTRA_OEMAKE_class-nativesdk = 'CROSS_COMPILE="${HOST_PREFIX}" CC="${CC} 
>> ${CFLAGS} ${LDFLAGS}" HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" 
>> STRIP=true V=1'
>> diff --git a/meta/recipes-bsp/u-boot/u-boot.inc 
>> b/meta/recipes-bsp/u-boot/u-boot.inc
>> index 188e5295cf..5fb1ae856a 100644
>> --- a/meta/recipes-bsp/u-boot/u-boot.inc
>> +++ b/meta/recipes-bsp/u-boot/u-boot.inc
>> @@ -9,6 +9,8 @@ inherit uboot-config uboot-extlinux-config uboot-sign deploy 
>> cml1 python3native
>>
>>  DEPENDS += "swig-native"
>>
>> +BUILD_CFLAGS += "-fcommon"
>> +
>>  EXTRA_OEMAKE = 'CROSS_COMPILE=${TARGET_PREFIX} CC="${TARGET_PREFIX}gcc 
>> ${TOOLCHAIN_OPTIONS}" V=1'
>>  EXTRA_OEMAKE += 'HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}"'
>>  EXTRA_OEMAKE += 'STAGING_INCDIR=${STAGING_INCDIR_NATIVE} 
>> STAGING_LIBDIR=${STAGING_LIBDIR_NATIVE}'
>> diff --git a/meta/recipes-devtools/binutils/binutils.inc 
>> b/meta/recipes-devtools/binutils/binutils.inc
>> index 4119960c63..6d590658f8 100644
>> --- a/meta/recipes-devtools/binutils/binutils.inc
>> +++ b/meta/recipes-devtools/binutils/binutils.inc
>> @@ -71,6 +71,8 @@ python do_package_prepend() {
>>
>>  B = "${S}/build.${HOST_SYS}.${TARGET_SYS}"
>>
>> +BUILD_CFLAGS += "-fcommon"
>> +
>>  EXTRA_OECONF = "--program-prefix=${TARGET_PREFIX} \
>>                  --disable-werror \
>>                  --enable-deterministic-archives \
>> diff --git a/meta/recipes-devtools/libcomps/libcomps_git.bb 
>> b/meta/recipes-devtools/libcomps/libcomps_git.bb
>> index 40b60159bc..0e893a9b49 100644
>> --- a/meta/recipes-devtools/libcomps/libcomps_git.bb
>> +++ b/meta/recipes-devtools/libcomps/libcomps_git.bb
>> @@ -17,6 +17,7 @@ inherit cmake distutils3-base
>>
>>  DEPENDS += "libxml2 expat libcheck"
>>
>> +BUILD_CFLAGS += "-fcommon"
>>  EXTRA_OECMAKE = " -DPYTHON_INSTALL_DIR=${PYTHON_SITEPACKAGES_DIR} 
>> -DPYTHON_DESIRED=3"
>>  OECMAKE_SOURCEPATH = "${S}/libcomps"
>>
>> diff --git a/meta/recipes-devtools/pseudo/pseudo.inc 
>> b/meta/recipes-devtools/pseudo/pseudo.inc
>> index 50e30064bd..751f1815dc 100644
>> --- a/meta/recipes-devtools/pseudo/pseudo.inc
>> +++ b/meta/recipes-devtools/pseudo/pseudo.inc
>> @@ -15,6 +15,8 @@ INSANE_SKIP_${PN}-dbg += "libdir"
>>
>>  PROVIDES += "virtual/fakeroot"
>>
>> +BUILD_CFLAGS += "-fcommon"
>> +
>>  MAKEOPTS = ""
>>  MAKEOPTS_class-native = 
>> "'RPATH=-Wl,--rpath=XORIGIN/../../../sqlite3-native/usr/lib/'"
>>
>> diff --git a/meta/recipes-devtools/squashfs-tools/squashfs-tools_git.bb 
>> b/meta/recipes-devtools/squashfs-tools/squashfs-tools_git.bb
>> index 9bcf026ce2..3ab9b0f2e5 100644
>> --- a/meta/recipes-devtools/squashfs-tools/squashfs-tools_git.bb
>> +++ b/meta/recipes-devtools/squashfs-tools/squashfs-tools_git.bb
>> @@ -12,6 +12,7 @@ SRC_URI = 
>> "git://github.com/plougher/squashfs-tools.git;protocol=https \
>>
>>  S = "${WORKDIR}/git/squashfs-tools"
>>
>> +BUILD_CFLAGS += "-fcommon"
>>  EXTRA_OEMAKE = "${PACKAGECONFIG_CONFARGS}"
>>
>>  PACKAGECONFIG ??= "gzip xz lzo lz4 lzma xattr reproducible"
>> diff --git a/meta/recipes-extended/libtirpc/libtirpc_1.2.5.bb 
>> b/meta/recipes-extended/libtirpc/libtirpc_1.2.5.bb
>> index fc66821ecc..f600430c41 100644
>> --- a/meta/recipes-extended/libtirpc/libtirpc_1.2.5.bb
>> +++ b/meta/recipes-extended/libtirpc/libtirpc_1.2.5.bb
>> @@ -21,7 +21,7 @@ inherit autotools pkgconfig
>>
>>  EXTRA_OECONF = "--disable-gssapi"
>>
>> -CFLAGS += "-fcommon"
>> +BUILD_CFLAGS += "-fcommon"
>>
>>  do_install_append() {
>>         chown root:root ${D}${sysconfdir}/netconfig
>> diff --git a/meta/recipes-kernel/dtc/dtc.inc 
>> b/meta/recipes-kernel/dtc/dtc.inc
>> index 0650e3c82e..6a5b5e5ef1 100644
>> --- a/meta/recipes-kernel/dtc/dtc.inc
>> +++ b/meta/recipes-kernel/dtc/dtc.inc
>> @@ -10,7 +10,8 @@ SRC_URI = "git://git.kernel.org/pub/scm/utils/dtc/dtc.git \
>>             "
>>  UPSTREAM_CHECK_GITTAGREGEX = "v(?P<pver>\d+(\.\d+)+)"
>>
>> -EXTRA_OEMAKE='NO_PYTHON=1 PREFIX="${prefix}" LIBDIR="${libdir}" 
>> DESTDIR="${D}"'
>> +EXTRA_CFLAGS += "-fcommon"
>> +EXTRA_OEMAKE='NO_PYTHON=1 PREFIX="${prefix}" LIBDIR="${libdir}" 
>> DESTDIR="${D}" EXTRA_CFLAGS="${EXTRA_CFLAGS}"'
>>
>>  inherit pkgconfig
>>
>> diff --git a/meta/recipes-support/gdbm/gdbm_1.18.1.bb 
>> b/meta/recipes-support/gdbm/gdbm_1.18.1.bb
>> index 5cb7c558b8..5f55ab0ffb 100644
>> --- a/meta/recipes-support/gdbm/gdbm_1.18.1.bb
>> +++ b/meta/recipes-support/gdbm/gdbm_1.18.1.bb
>> @@ -23,7 +23,7 @@ CACHED_CONFIGUREVARS += "ac_cv_lib_ndbm_main=no 
>> ac_cv_lib_dbm_main=no"
>>
>>  BBCLASSEXTEND = "native nativesdk"
>>
>> -CFLAGS += "-fcommon"
>> +BUILD_CFLAGS += "-fcommon"
>>
>>  do_install_append () {
>>      # Create a symlink to ndbm.h and gdbm.h in include/gdbm to let other 
>> packages to find
>> --
>> 2.26.2
>>
> 
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