Re: [dpdk-dev] [PATCH] drivers/crypto: fix gcc 10 fno-common errors

[Kevin Traynor <ktraynor@redhat.com>]

https://travis-ci.com/ovsrobot/dpdk/builds/164784623
looks to be travis run issue

passing on my travis
https://travis-ci.org/github/kevuzaj/dpdk-master/builds/684814829


On 08/05/2020 17:27, Kevin Traynor wrote:
> gcc 10 defaults to -fno-common and as a result when linking
> with crypto drivers:
> 
> drivers/librte_pmd_dpaa_sec.a(crypto_dpaa_sec_dpaa_sec.c.o):
> (.bss+0x4): multiple definition of `rta_sec_era';
> drivers/librte_pmd_caam_jr.a(crypto_caam_jr_caam_jr.c.o):
> (.bss+0x0): first defined here
> 
> drivers/librte_pmd_dpaa2_sec.a(crypto_dpaa2_sec_dpaa2_sec_dpseci.c.o):
> (.data+0x0): multiple definition of `rta_sec_era';
> drivers/librte_pmd_caam_jr.a(crypto_caam_jr_caam_jr.c.o):
> (.bss+0x0): first defined here
> 
> This is a blunt fix for the issue by enabling fcommon for
> dpaa_sec/dpaa2_sec/caam_jr.
> 
> Bugzilla ID: 469
> Cc: stable@dpdk.org
> 
> Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
> 
> ---
> Reverting to fcommon for crypto so it can build cleanly for rc2 as per:
> http://inbox.dpdk.org/dev/4010985e-6c80-2e82-dad2-73970f89b79e@intel.com/
> ---
>  drivers/crypto/caam_jr/Makefile      | 7 +++++++
>  drivers/crypto/caam_jr/meson.build   | 5 +++++
>  drivers/crypto/dpaa2_sec/Makefile    | 7 +++++++
>  drivers/crypto/dpaa2_sec/meson.build | 5 +++++
>  drivers/crypto/dpaa_sec/Makefile     | 7 +++++++
>  drivers/crypto/dpaa_sec/meson.build  | 5 +++++
>  6 files changed, 36 insertions(+)
> 
> diff --git a/drivers/crypto/caam_jr/Makefile b/drivers/crypto/caam_jr/Makefile
> index 89d323817..10848884c 100644
> --- a/drivers/crypto/caam_jr/Makefile
> +++ b/drivers/crypto/caam_jr/Makefile
> @@ -15,4 +15,11 @@ CFLAGS += -O3
>  CFLAGS += $(WERROR_FLAGS)
>  
> +# FIXME: temporary solution for Bugzilla 469
> +ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
> +ifeq ($(shell test $(GCC_VERSION) -ge 100 && echo 1), 1)
> +CFLAGS += -fcommon
> +endif
> +endif
> +
>  CFLAGS += -I$(RTE_SDK)/drivers/bus/dpaa/include
>  CFLAGS += -I$(RTE_SDK)/drivers/common/dpaax
> diff --git a/drivers/crypto/caam_jr/meson.build b/drivers/crypto/caam_jr/meson.build
> index f8b5250a9..551b13632 100644
> --- a/drivers/crypto/caam_jr/meson.build
> +++ b/drivers/crypto/caam_jr/meson.build
> @@ -13,4 +13,9 @@ sources = files('caam_jr_capabilities.c',
>  		'caam_jr.c')
>  
> +# FIXME: temporary solution for Bugzilla 469
> +if (toolchain == 'gcc' and cc.version().version_compare('>=10.0.0'))
> +	cflags += '-fcommon'
> +endif
> +
>  includes += include_directories('../../bus/dpaa/include/')
>  includes += include_directories('../../common/dpaax/')
> diff --git a/drivers/crypto/dpaa2_sec/Makefile b/drivers/crypto/dpaa2_sec/Makefile
> index a0a279557..8ce637db6 100644
> --- a/drivers/crypto/dpaa2_sec/Makefile
> +++ b/drivers/crypto/dpaa2_sec/Makefile
> @@ -20,4 +20,11 @@ endif
>  endif
>  
> +# FIXME: temporary solution for Bugzilla 469
> +ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
> +ifeq ($(shell test $(GCC_VERSION) -ge 100 && echo 1), 1)
> +CFLAGS += -fcommon
> +endif
> +endif
> +
>  CFLAGS += -I$(RTE_SDK)/drivers/common/dpaax
>  CFLAGS += -I$(RTE_SDK)/drivers/common/dpaax/caamflib
> diff --git a/drivers/crypto/dpaa2_sec/meson.build b/drivers/crypto/dpaa2_sec/meson.build
> index cb1c2d049..505ad9414 100644
> --- a/drivers/crypto/dpaa2_sec/meson.build
> +++ b/drivers/crypto/dpaa2_sec/meson.build
> @@ -11,3 +11,8 @@ sources = files('dpaa2_sec_dpseci.c',
>  		'mc/dpseci.c')
>  
> +# FIXME: temporary solution for Bugzilla 469
> +if (toolchain == 'gcc' and cc.version().version_compare('>=10.0.0'))
> +	cflags += '-fcommon'
> +endif
> +
>  includes += include_directories('mc', '../../common/dpaax', '../../common/dpaax/caamflib')
> diff --git a/drivers/crypto/dpaa_sec/Makefile b/drivers/crypto/dpaa_sec/Makefile
> index ea266962a..6cf392cb3 100644
> --- a/drivers/crypto/dpaa_sec/Makefile
> +++ b/drivers/crypto/dpaa_sec/Makefile
> @@ -14,4 +14,11 @@ CFLAGS += -O3
>  CFLAGS += $(WERROR_FLAGS)
>  
> +# FIXME: temporary solution for Bugzilla 469
> +ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
> +ifeq ($(shell test $(GCC_VERSION) -ge 100 && echo 1), 1)
> +CFLAGS += -fcommon
> +endif
> +endif
> +
>  CFLAGS += -I$(RTE_SDK)/drivers/bus/dpaa
>  CFLAGS += -I$(RTE_SDK)/drivers/bus/dpaa/include
> diff --git a/drivers/crypto/dpaa_sec/meson.build b/drivers/crypto/dpaa_sec/meson.build
> index 7d422d8d5..f5e660457 100644
> --- a/drivers/crypto/dpaa_sec/meson.build
> +++ b/drivers/crypto/dpaa_sec/meson.build
> @@ -10,4 +10,9 @@ deps += ['bus_dpaa', 'mempool_dpaa', 'security']
>  sources = files('dpaa_sec.c')
>  
> +# FIXME: temporary solution for Bugzilla 469
> +if (toolchain == 'gcc' and cc.version().version_compare('>=10.0.0'))
> +	cflags += '-fcommon'
> +endif
> +
>  includes += include_directories('../../bus/dpaa/include')
>  includes += include_directories('../../common/dpaax')
>