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toolchain/toolchain-external/toolchain-external-custom: add option to indicate SSP_STRONG support

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This commit adds a user-visible option
BR2_TOOLCHAIN_EXTERNAL_HAS_SSP_STRONG, which will allow the user to
indicate if the custom external toolchain does or does not have
SSP_STRONG support. Depending on this, the user will be able to use
(or not) the BR2_SSP_STRONG option.

Checking if what the user said is true or not about this is already
done in toolchain/toolchain-external/pkg-toolchain-external.mk:

        $$(Q)$$(call check_toolchain_ssp,$$(TOOLCHAIN_EXTERNAL_CC),$(BR2_SSP_OPTION))

If the user selects BR2_SSP_STRONG, this will check if
-fstack-protector-strong is really supported.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Thomas Petazzoni 2020-02-20 03:01:15 +01:00 committed by Yann E. MORIN
parent 2b75114392
commit 522a851be7
1 changed files with 12 additions and 0 deletions
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12
toolchain/toolchain-external/toolchain-external-custom/Config.in.options
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@ -410,6 +410,18 @@ config BR2_TOOLCHAIN_EXTERNAL_HAS_SSP
leave the default value, Buildroot will tell you if it's
correct or not.
config BR2_TOOLCHAIN_EXTERNAL_HAS_SSP_STRONG
bool "Toolchain has SSP strong support?"
default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 && BR2_TOOLCHAIN_EXTERNAL_GLIBC
default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 && BR2_TOOLCHAIN_EXTERNAL_MUSL
depends on BR2_TOOLCHAIN_EXTERNAL_HAS_SSP
select BR2_TOOLCHAIN_HAS_SSP_STRONG
help
Selection this option if your external toolchain has strong
Stack Smashing Protection support enabled. If you don't
know, leave the default value, Buildroot will tell you if
it's correct or not.
config BR2_TOOLCHAIN_EXTERNAL_INET_RPC
bool "Toolchain has RPC support?"
default y if BR2_TOOLCHAIN_EXTERNAL_GLIBC