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| author | Julien Dusser <julien.dusser@free.fr> | 2018-01-07 17:41:35 +0100 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2018-01-27 19:02:47 +0100 |
| commit | 55779569eb817361222d653accd929a752b8327d (patch) | |
| tree | 7a9bf11f138f57a0303eda7bee72f5e3233487f3 | |
| parent | df0bd42fdeb76c9bc51b816c3df699db123c0024 (diff) | |
| download | mtk-20170518-55779569eb817361222d653accd929a752b8327d.zip mtk-20170518-55779569eb817361222d653accd929a752b8327d.tar.gz mtk-20170518-55779569eb817361222d653accd929a752b8327d.tar.bz2 | |
toolchain: add gcc configure default PIE and SSP
GCC supports starting version 5 --enable-default-ssp and starting version 6
--enable-default-pie.
It produces hardened binaries by default without dealing with package
compilation flags.
Signed-off-by: Julien Dusser <julien.dusser@free.fr>
| -rw-r--r-- | toolchain/gcc/Config.in | 15 | ||||
| -rw-r--r-- | toolchain/gcc/common.mk | 10 |
2 files changed, 25 insertions, 0 deletions
diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in index 06e9f48..0fe0ea2 100644 --- a/toolchain/gcc/Config.in +++ b/toolchain/gcc/Config.in @@ -37,6 +37,21 @@ config EXTRA_GCC_CONFIG_OPTIONS help Any additional gcc options you may want to include.... +config GCC_DEFAULT_PIE + bool + prompt "Build executable with PIE enabled by default" if TOOLCHAINOPTS + depends on !GCC_USE_VERSION_5 + default n + help + Use gcc configure option --enable-default-pie to turn on -fPIE and -pie by default. + +config GCC_DEFAULT_SSP + bool + prompt "Build executable with Stack-Smashing Protection enabled by default" if TOOLCHAINOPTS + default n + help + Use gcc configure option --enable-default-ssp to turn on -fstack-protector-strong by default. + config SSP_SUPPORT bool prompt "Enable Stack-Smashing Protection support" if TOOLCHAINOPTS diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk index 7c4e773..ece71ef 100644 --- a/toolchain/gcc/common.mk +++ b/toolchain/gcc/common.mk @@ -133,6 +133,16 @@ ifndef GCC_VERSION_4_8 GCC_CONFIGURE += --with-diagnostics-color=auto-if-env endif +ifneq ($(CONFIG_GCC_DEFAULT_PIE),) + GCC_CONFIGURE+= \ + --enable-default-pie +endif + +ifneq ($(CONFIG_GCC_DEFAULT_SSP),) + GCC_CONFIGURE+= \ + --enable-default-ssp +endif + ifneq ($(CONFIG_SSP_SUPPORT),) GCC_CONFIGURE+= \ --enable-libssp |