[Buildroot] [PATCH 1/2] gcc: remove option on SJLJ exceptions
Michael S. Zick
minimod at morethan.org
Thu Jul 29 10:38:06 UTC 2010
On Thu July 29 2010, Thomas Petazzoni wrote:
> This is a very advanced option, and it seems, according to
> http://choices.cs.uiuc.edu/exceptions.pdf that SJLJ exceptions aren't
> really interesting.
>
And of course you confirmed that the Lua package's
error handling still works properly, complete with
same backtrace that is produced when SJLJ exceptions are enabled.
You did make that test didn't you?
Mike
> Users really interested by this can always use the
> BR2_EXTRA_GCC_CONFIG_OPTIONS is they want.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> ---
> configs/arm_toolchain_defconfig | 1 -
> configs/at91rm9200df_defconfig | 1 -
> configs/at91sam9260dfc_defconfig | 1 -
> configs/at91sam9260pf_defconfig | 1 -
> configs/at91sam9261ek_defconfig | 1 -
> configs/at91sam9263ek_defconfig | 1 -
> configs/at91sam9g20dfc_defconfig | 1 -
> configs/atngw100-base_defconfig | 1 -
> configs/atngw100_defconfig | 1 -
> configs/atstk1005_defconfig | 1 -
> configs/atstk100x_defconfig | 1 -
> configs/i386_defconfig | 1 -
> configs/i686_defconfig | 1 -
> configs/integrator926_defconfig | 1 -
> configs/integrator926_huge_defconfig | 1 -
> configs/kb9202_defconfig | 1 -
> configs/v100sc2_defconfig | 1 -
> toolchain/gcc/Config.in | 8 --------
> toolchain/gcc/Makefile.in | 4 ----
> toolchain/gcc/gcc-uclibc-4.x.mk | 2 --
> 20 files changed, 0 insertions(+), 31 deletions(-)
>
> diff --git a/configs/arm_toolchain_defconfig b/configs/arm_toolchain_defconfig
> index 3062541..2ac7de3 100644
> --- a/configs/arm_toolchain_defconfig
> +++ b/configs/arm_toolchain_defconfig
> @@ -245,7 +245,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.3.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> # BR2_GCC_CROSS_FORTRAN is not set
> # BR2_INSTALL_LIBGCJ is not set
> diff --git a/configs/at91rm9200df_defconfig b/configs/at91rm9200df_defconfig
> index 98158b9..2a193cf 100644
> --- a/configs/at91rm9200df_defconfig
> +++ b/configs/at91rm9200df_defconfig
> @@ -250,7 +250,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.3.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> # BR2_GCC_CROSS_FORTRAN is not set
> # BR2_INSTALL_LIBGCJ is not set
> diff --git a/configs/at91sam9260dfc_defconfig b/configs/at91sam9260dfc_defconfig
> index f1d63df..98d3401 100644
> --- a/configs/at91sam9260dfc_defconfig
> +++ b/configs/at91sam9260dfc_defconfig
> @@ -267,7 +267,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.3.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_CROSS_CXX=y
> # BR2_GCC_CROSS_FORTRAN is not set
> diff --git a/configs/at91sam9260pf_defconfig b/configs/at91sam9260pf_defconfig
> index 651041f..ec4005d 100644
> --- a/configs/at91sam9260pf_defconfig
> +++ b/configs/at91sam9260pf_defconfig
> @@ -173,7 +173,6 @@ BR2_GCC_VERSION_4_2_1=y
> # BR2_GCC_IS_SNAP is not set
> BR2_GCC_VERSION="4.2.1"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_CROSS_CXX=y
> # BR2_GCC_CROSS_FORTRAN is not set
> diff --git a/configs/at91sam9261ek_defconfig b/configs/at91sam9261ek_defconfig
> index 0d2fa0b..7524c68 100644
> --- a/configs/at91sam9261ek_defconfig
> +++ b/configs/at91sam9261ek_defconfig
> @@ -270,7 +270,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.3.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_CROSS_CXX=y
> # BR2_GCC_CROSS_FORTRAN is not set
> diff --git a/configs/at91sam9263ek_defconfig b/configs/at91sam9263ek_defconfig
> index 6b4f592..85ccede 100644
> --- a/configs/at91sam9263ek_defconfig
> +++ b/configs/at91sam9263ek_defconfig
> @@ -264,7 +264,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.3.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> # BR2_GCC_CROSS_FORTRAN is not set
> # BR2_INSTALL_LIBGCJ is not set
> diff --git a/configs/at91sam9g20dfc_defconfig b/configs/at91sam9g20dfc_defconfig
> index 92171d5..57d72ae 100644
> --- a/configs/at91sam9g20dfc_defconfig
> +++ b/configs/at91sam9g20dfc_defconfig
> @@ -264,7 +264,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.3.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> # BR2_GCC_CROSS_FORTRAN is not set
> # BR2_INSTALL_LIBGCJ is not set
> diff --git a/configs/atngw100-base_defconfig b/configs/atngw100-base_defconfig
> index f5eba61..270c056 100644
> --- a/configs/atngw100-base_defconfig
> +++ b/configs/atngw100-base_defconfig
> @@ -196,7 +196,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> # BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE is not set
> BR2_GCC_VERSION="4.2.2-avr32-2.1.5"
> # BR2_TOOLCHAIN_SYSROOT is not set
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> # BR2_GCC_SHARED_LIBGCC is not set
>
> diff --git a/configs/atngw100_defconfig b/configs/atngw100_defconfig
> index d1db2da..a78372d 100644
> --- a/configs/atngw100_defconfig
> +++ b/configs/atngw100_defconfig
> @@ -174,7 +174,6 @@ BR2_GCC_VERSION_4_2_2_AVR32_2_1_5=y
> BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_VERSION="4.2.2-avr32-2.1.5"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_SHARED_LIBGCC=y
> BR2_GCC_ENABLE_TLS=y
> diff --git a/configs/atstk1005_defconfig b/configs/atstk1005_defconfig
> index b90761b..451e248 100644
> --- a/configs/atstk1005_defconfig
> +++ b/configs/atstk1005_defconfig
> @@ -200,7 +200,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> # BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE is not set
> BR2_GCC_VERSION="4.2.2-avr32-2.1.5"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_SHARED_LIBGCC=y
>
> diff --git a/configs/atstk100x_defconfig b/configs/atstk100x_defconfig
> index c12ccf8..e39e608 100644
> --- a/configs/atstk100x_defconfig
> +++ b/configs/atstk100x_defconfig
> @@ -195,7 +195,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> # BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE is not set
> BR2_GCC_VERSION="4.2.2-avr32-2.1.5"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_SHARED_LIBGCC=y
>
> diff --git a/configs/i386_defconfig b/configs/i386_defconfig
> index 65825be..026e206 100644
> --- a/configs/i386_defconfig
> +++ b/configs/i386_defconfig
> @@ -195,7 +195,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.4.0"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> # BR2_GCC_CROSS_FORTRAN is not set
> # BR2_INSTALL_LIBGCJ is not set
> diff --git a/configs/i686_defconfig b/configs/i686_defconfig
> index 31ce604..884ec7d 100644
> --- a/configs/i686_defconfig
> +++ b/configs/i686_defconfig
> @@ -195,7 +195,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.4.0"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> # BR2_GCC_CROSS_FORTRAN is not set
> # BR2_INSTALL_LIBGCJ is not set
> diff --git a/configs/integrator926_defconfig b/configs/integrator926_defconfig
> index 2eb22c5..4ec53f9 100644
> --- a/configs/integrator926_defconfig
> +++ b/configs/integrator926_defconfig
> @@ -199,7 +199,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.3.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> # BR2_GCC_CROSS_CXX is not set
> # BR2_GCC_CROSS_FORTRAN is not set
> diff --git a/configs/integrator926_huge_defconfig b/configs/integrator926_huge_defconfig
> index e44ac5f..b5c34df 100644
> --- a/configs/integrator926_huge_defconfig
> +++ b/configs/integrator926_huge_defconfig
> @@ -199,7 +199,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE=y
> BR2_GCC_VERSION="4.3.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_CROSS_CXX=y
> # BR2_GCC_CROSS_FORTRAN is not set
> diff --git a/configs/kb9202_defconfig b/configs/kb9202_defconfig
> index 40c6d18..1d0aa61 100644
> --- a/configs/kb9202_defconfig
> +++ b/configs/kb9202_defconfig
> @@ -201,7 +201,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> # BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE is not set
> BR2_GCC_VERSION="4.2.4"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_CROSS_CXX=y
> # BR2_GCC_CROSS_FORTRAN is not set
> diff --git a/configs/v100sc2_defconfig b/configs/v100sc2_defconfig
> index ca261ee..5ba2899 100644
> --- a/configs/v100sc2_defconfig
> +++ b/configs/v100sc2_defconfig
> @@ -170,7 +170,6 @@ BR2_GCC_SUPPORTS_SYSROOT=y
> # BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE is not set
> BR2_GCC_VERSION="4.2.2"
> BR2_TOOLCHAIN_SYSROOT=y
> -# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
> BR2_EXTRA_GCC_CONFIG_OPTIONS=""
> BR2_GCC_CROSS_CXX=y
> BR2_INSTALL_LIBSTDCPP=y
> diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
> index 31eba6b..cbdc026 100644
> --- a/toolchain/gcc/Config.in
> +++ b/toolchain/gcc/Config.in
> @@ -68,14 +68,6 @@ config BR2_GCC_VERSION
> default "4.4.4" if BR2_GCC_VERSION_4_4_X
> default $BR2_GCC_SNAP_DATE if BR2_GCC_VERSION_SNAP
>
> -config BR2_GCC_USE_SJLJ_EXCEPTIONS
> - bool "Enable setjmp/longjmp exceptions?"
> - help
> - For some platforms, proper stack unwinding works perfectly,
> - while other platforms must use setjmp/longjmp exceptions for
> - proper stack unwinding during exception handling. Most people
> - can leave this set to n.
> -
> config BR2_EXTRA_GCC_CONFIG_OPTIONS
> string "Additional gcc options"
> default ""
> diff --git a/toolchain/gcc/Makefile.in b/toolchain/gcc/Makefile.in
> index 9537e9d..b6ebca9 100644
> --- a/toolchain/gcc/Makefile.in
> +++ b/toolchain/gcc/Makefile.in
> @@ -13,10 +13,6 @@ else
> GCC_SNAP_DATE:=
> endif
>
> -ifeq ($(BR2_GCC_USE_SJLJ_EXCEPTIONS),y)
> -GCC_USE_SJLJ_EXCEPTIONS:=--enable-sjlj-exceptions
> -endif
> -
> ifeq ($(BR2_SOFT_FLOAT),y)
> SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
> ifeq ($(BR2_arm)$(BR2_armeb),y) # only set float-abi for arm
> diff --git a/toolchain/gcc/gcc-uclibc-4.x.mk b/toolchain/gcc/gcc-uclibc-4.x.mk
> index dfc1790..d9269bd 100644
> --- a/toolchain/gcc/gcc-uclibc-4.x.mk
> +++ b/toolchain/gcc/gcc-uclibc-4.x.mk
> @@ -290,7 +290,6 @@ $(GCC_BUILD_DIR2)/.configured: $(GCC_SRC_DIR)/.patched $(GCC_STAGING_PREREQ)
> $(GCC_DECIMAL_FLOAT) \
> $(SOFT_FLOAT_CONFIG_OPTION) \
> $(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
> - $(GCC_USE_SJLJ_EXCEPTIONS) \
> $(DISABLE_LARGEFILE) \
> $(EXTRA_GCC_CONFIG_OPTIONS) \
> $(EXTRA_GCC2_CONFIG_OPTIONS) \
> @@ -424,7 +423,6 @@ $(GCC_BUILD_DIR3)/.configured: $(GCC_BUILD_DIR3)/.prepared
> $(GCC_DECIMAL_FLOAT) \
> $(SOFT_FLOAT_CONFIG_OPTION) \
> $(GCC_WITH_ABI) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
> - $(GCC_USE_SJLJ_EXCEPTIONS) \
> $(DISABLE_LARGEFILE) \
> $(EXTRA_GCC_CONFIG_OPTIONS) \
> $(EXTRA_TARGET_GCC_CONFIG_OPTIONS) \
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